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The Application of Inorganic Fertilisers to Conditioned Pinus radiata Prior to Lifting as a Means of Improving Root Growth Capacity
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D. G.M. Donald --- ,A modified root growth capacity technique was used to evaluate the effect of the application of different types and quantities of fertilisers on the root growth capacity (RGC) of conditioned Pinus radiata seedlings. The experiment indicates that 0,05 g N... -
Site Indicator Species for Predicting Productivity of Pine Plantations in the Southern Cape
Item type: Journal Article • Journal: South African Forestry Journal • Authors: G.N. Schafer --- Saasveld Forestry Research Centre,A means of predicting site potential for pine species in the Southern Cape based on 10 vegetation associations is presented. -
The Role of Genotype-Environment Interaction in Adaptability
Item type: Journal Article • Journal: South African Forestry Journal • Authors: P.J. Robbertse --- D.R. De Wet Forestry Research Centre,The over sites ratio of clonal (familial) genotype-environment interaction (GEI) variance to mean trial variance determines the regression that is used to predict adaptability. Genotypic and environmental variances do not contribute significantly to this regression. Genotype x environment interaction effects... -
The Blackwood Group System: its relevance for sustainable forest management in the southern Cape
Item type: Journal Article • Journal: South African Forestry Journal • Authors: CoertJ. Geldenhuys --- Division of Water, Environment and Forestry Technology, Southern AfricaThe invasion status of Australian blackwood, Acacia melanoxylon, is assessed against its value as a commercial tree in the southern Cape forests. The species was introduced from Australian rain forests and planted extensively in the southern Cape forests since 1909... -
Multiple Resource Utilisation Developments in Mondi Forests
Item type: Journal Article • Journal: South African Forestry Journal • Authors: Richard McC. Pott --- ,Defined as the use of available resources other than the planted trees on Mondi's landholdings, the development of various MRU projects is described from 1975 onwards. Projects are differentiated into those that are directly dependant on the presence of planted... -
Ontogeny of Themeda triandra tillers in the false thornveld of the eastern cape
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.E. Danckwerts --- Department of Agriculture (Eastern Cape Region), A.J. Aucamp --- Department of Agriculture (Eastern Cape Region), L.P. Du Toit --- Department of Agriculture (Eastern Cape Region),Marked populations of Themeda triandra tillers were sequentially sampled at fortnightly intervals under normal conditions and without moisture stress respectively, covering a period from tiller initiation through to senescence after flowering. Parameters recorded were height of shoot apex, tiller mass,... -
A comparison of highveld fodders and fodder flows for growing out long yearling steers
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.O. Grunow --- Department of Plant Production, P.A. Pieterse --- Department of Plant Production, D.E. Borlinghaus --- ,A fodder flow/animal experiment 40,8 ha in extent (7,5 ha irrigated), with 19 paddocks, was carried out over a two and a half year period. -
The ecological potential of the kudu for commercial production in savanna regions
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: N. Owen‐Smith --- Centre for Resource Ecology,This paper considers the choice of a browsing ungulate to supplement cattle in savanna regions susceptible to problems of bush encroachment, and evaluates the kudu in particular. Relevant aspects of its ecology considered include (i) the vegetation components utilized at... -
The dynamics of Themeda Triandra tillers in relation to burning in the natal Drakensberg
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: C.S. Everson --- Department of Environment Affairs, TheresaM. Everson --- Department of Environment Affairs, N.M. Tainton --- Department of Grassland Science,Marked tillers of Themeda triandra were sampled regularly over a two year period in Highland Sourveld burnt annually in winter, biennially in spring and after a single summer and early winter burning treatment. Parameters recorded were height of shoot apex,... -
Ontogeny of sporobolus fimbriatus tillers in the false thornveld of the Eastern Cape
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J E Danckwerts --- Department of Agriculture (Eastern Cape Region), A J Aucamp --- Department of Agriculture (Eastern Cape Region), L P Du Toit --- Department of Agriculture (Eastern Cape Region),Marked populations of Sporobolus fimbriatus tillers were sequentially sampled at fortnightly intervals under normal rainfall conditions and under irrigation respectively, covering a period from tiller initiation through to senescence after flowering. Parameters recorded included shoot apex elevation, tiller mass and... -
Veld management : A challenge to agricultural extension
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: T J Bembridge --- Faculty of Agriculture,This paper discusses the problems of communicating veld management practices to farmers within the framework of the knowledge generation and diffusion system. Suggestions are made for improving the system through greater involvement of farmers in research and extension, and for... -
Potential of medic and lucerne pastures in the rûens area of the Southern Cape
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.M. van Heerden --- Department of Agriculture and Water Supply (Winter Rainfall Region), N.M. Tainton --- Department of Grassland Science,The potential of dryland lucerne and medic pastures was compared over a range of stocking rates, i.e. three, four, five, six, seven and eight merino ewes per hectare, in the Rûens area of the Southern Cape. It was found that... -
Die ekonomiese implikasies van bosverdigting en bosbeheer soos van toepassing op ‘n speenkalfproduksiestelsel in die doringbosveld van die Molopo‐gebied
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: A. Moore --- , A. Odendaal --- ,Daar bestaan ‘n dringende behoefte aan ekonomies geregverdigde kostes wat as riglyne kan dien vir bosbeheer in die Molopo‐gebied. In hierdie referaat word so ‘n bedrag beraam. -
Variation in important pasture grasses: I. Morphological and geographical variation
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: G.E. Gibbs Russell --- Department of Agriculture and Water Supply, J.J. Spies --- Department of Agriculture and Water Supply,Seven species are important pasture grasses throughout the western Transvaal, Orange Free State, northern Cape and Natal. Taxonomically, each is a widely distributed species complex with a range of morphological variants and many ecotypes. The local forms well suited to... -
Variation in important pasture grasses. II. Cytogenetic and reproductive variation
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.J. Spies --- Department of Agriculture and Water Supply, G.E. Gibbs Russell --- Department of Agriculture and Water Supply,The chromosome numbers and reproductive variation of seven important pasture grasses from South Africa are compared. This comparison indicates that all these species form polyploid complexes, all reproduce both sexually and either apomictically or vegetatively, and some form of hybridization... -
A consideration of veld condition assessment techniques for commercial livestock production in South Africa
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: N.M. Tainton --- Department of Grassland Science,A number of procedures have been developed for the evaluation of veld condition in a variety of vegetation types in South Africa. These include both agronomic and ecologically based methods, about which there still remain a great deal of controversy... -
Growth and desiccation of Themeda triandra and Sporobolus fimbriatus in relation to diminishing moisture availability
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.E. Danckwerts --- Department of Agriculture (Eastern Cape Region),Water was withheld from individual plants of Themeda triandra and Sporobolus fimbriatus growing in pots in a greenhouse. Leaf extension growth, followed by successive degrees of tiller desiccation, were monitored on a daily basis and related to diminishing moisture availability... -
Influence of grazing management on the production of an irrigated grass/legume pasture in the Rûens area of the Southern cape
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.M. vanHeerden --- Department of Agriculture and Water Supply (Winter Rainfall Region), N.M. Tainton --- Department of Grassland Science,The production of an irrigated grass/legume pasture was determined using Merino ewes on rotational and continuous grazing systems. The clover content of the pasture declined, while the grass content increased under both systems. The lucerne content of the rotationally‐grazed pastures... -
‘n oorsig oor staande hooi in die sentrale grasveld met spesiale verwysing na digit aria eriantha
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: C.S. Dannhauser --- Departement Landbou en Watervoorsiening,‘n Literatuuroorsig oor die gebruikswaarde van tropiese grassse as staande hooi, in die winter, word voorsien. Die invloed van klimaat op die keuse van spesies en bestuur van die grasse, gedurende die voorafgaande groeiseisoen, word bespreek. Meer onlangse gegewens oor... -
The effect of severe drought and management after drought on the mortality and recovery of semi‐arid grassveld
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.E. Danckwerts --- Department of Agriculture (Eastern Cape Region), G.C. Stuart‐Hill --- Department of Agriculture (Eastern Cape Region),The False Thornveld of the Eastern Cape experienced a particularly intense drought during the 1982/83 growing season. Extensive grass mortality took place during the drought. After the drought, recovery was particularly sensitive to the post‐drought management treatment applied. Veld that... -
An evaluation of the economic viability of commercial pastoralism in the smaldeel area of the Eastern Cape
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.E. Danckwerts --- Department of Agriculture and Water Supply (Eastern Cape Region), J.B. Marais --- Department of Agriculture and Water Supply (Eastern Cape Region),Carrying capacity models and financial data from study group farmers were used to derive attainable net revenue per ha on veld in good, moderate and poor condition. From these data, minimum farm sizes required for a reasonable standard of living... -
The effect of frequency of defoliation on themeda triandra in the false Thornveld of the Eastern Cape
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.E. Danckwerts --- Department of Agriculture and Water Supply (Eastern Cape Region), L.O. Nel --- Department of Agriculture and Water Supply (Eastern Cape Region),Tufts of Themeda triandra were subjected to different frequencies of defoliation during a single season under irrigated and non‐irrigated conditions. Frequent defoliation (> 5 times per year) severely reduced clipped yield on both moisture treatments. On irrigated treatments, root mass... -
Leaf silicification in grasses — A review
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: P.J. O'Reagain --- Department of Agriculture, M.T. Mentis --- Centre for Resource Ecology,Silica is absorbed from the soil by many grasses in an active or passive manner depending upon the species involved. It is carried upwards in the transpiration stream and deposited throughout the plant where it polymerizes to form amorphous silica... -
The influence of level and distribution of nitrogenous fertilizer on the dry matter production of Eragrostis curvula
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: N.F.G. Rethman --- Department of Agriculture and Water Supply, Republic of South Africa L.G. vanZy1 --- Department of Agriculture and Water Supply, Republic of South Africa B.H. Beukes --- Department of Agriculture and Water Supply, Republic of South Africa212 kg N/ha was the most profitable level. With the probability of poor seasons (when 106–159 kg N/ha was more profitable), the optimum level of spring fertilization being in the region of 100 kg N and the improved distribution of... -
Climatic and edaphic conditions at eragrostis lehmanniana nees sites in Arizona, USA and the cape province, RSA and potential seeding sites in Southern Africa
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: JerryR. Cox --- U.S. Department of Agriculture, USA J.L. Stroehlein --- Soil and Water Department, USA J.H. Fourie --- , Republic of South AfricaClimatic and edaphic conditions at Eragrostis lehmanniana Nees sites in southeastern Arizona, USA were compared with those in the Cape Province, RSA to determine a range of conditions under which the species might be expected to establish and persist in... -
Determining sample size for assessing species composition in grassland1
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: M.B. Hardy --- Department of Agricultural Development, Republic of South Africa R.S. Walker --- Department of Grassland Science, Republic of South AfricaSpecies composition is measured in grasslands for a variety of reasons. Commonly, observations are made using the wheel‐point apparatus. However, the problem of determining optimum sample size has not yet been satisfactorily resolved. In this study the wheel‐point apparatus was... -
Relations between soil factors and herbage yields of natural grassland on sandy soils in the south‐eastern Transvaal
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: D.L. Barnes --- Department of Agricultural Development (Transvaal Region), Republic of South Africa M. Swart --- Department of Agricultural Development (Transvaal Region), Republic of South Africa M.F. Smith --- , Republic of South Africa G.H. Wiltshire --- , Republic of South AfricaForty systematically‐placed observation points were established in a 1.5‐ha area of floristically unifoim veld in which productivity varied spatially. At each point grass yields were determined by harvesting quadrats at eight‐week intervals during the growing season, and the volumetric water... -
Towards optimum grazing management for sheep production on crownvetch (Coronilla varia L.)
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: D.L. Barnes --- Department of Agricultural Development (Transvaal Region), Republic of South Africa C.P. Dempsey --- Department of Agricultural Development (Transvaal Region), Republic of South AfricaThe performance of wether lambs on crownvetch (Coronilla varia L.) pasture was determined for three seasons under five grazing procedures. These included continuous grazing and rotational grazing with a 7‐day period‐of stay and periods‐of‐absence of 7, 21, 35 or 49... -
Evaluation of shrub species for sheep grazing in the Strandveld of the Cape West Coast of South Africa
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: S.A. Barnard --- Department of Agricultural Development, Republic of South Africa J.M. van Heerden --- Department of Agricultural Development, Republic of South Africa H.S. Gerber --- Department of Agricultural Development, Republic of South AfricaThe production of three exotic shrub species, Atriplex nummularia (old man saltbush), A. canescens (four‐winged salt‐bush) and Medicago arborea (tree lucerne) and one indigenous evergreen shrub, Chrysanthemoides monilifera subsp. pisifera (west coast bitou), was evaluated in the Strandveld of the... -
A critical analysis of veld management recommendations for sourveld in the south‐eastern Transvaal
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: D.L. Barnes --- Department of Agricultural Development (Transvaal Region), Republic of South AfricaSurveys have shown that the grazing value of veld in the south‐eastern Transvaal is well below the estimated potential. Extension efforts aimed at rectifying the situation have been unsuccessful in that most recommendations have not been acceptable to producers. An... -
Relationship between cation exchange capacity, clay content and water retention of Highveld soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: AstridM. Lambooy --- ,Water in the soil is held by capillary and adsorption forces. These forces are mainly a function of clay content and mineralogy. To neglect the influence of clay mineralogy when estimating the water-holding properties of soil, implies that only a... -
Soil factors affecting tree growth and root development in a citrus orchard
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.J. Nel --- , A. T.P. Bennie --- ,Tree- and root-growth parameters correlated well with a number of soil properties Useful relationships were established between unconfined penetrometer resistance, air capacity (at FWC), tree growth and root development. -
Seisoensveranderinge in die koolhidraatinhoud van jong appelbome
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. J.C. Stassen --- ,Gereelde ontledings van die koolhidraatfraksies in jong appelbome het getoon dat suiker 'n relatief klein gedeelte van die koolhidrate in die boomdele uitmaak, en veral in die wortels voorkom. Stysel akkumuleer in die wortels tot finale blaarval in die winter,... -
Invloed van sekere grondeienskappe op matrikspotensiaal by, en tydsverloop tot, veldkapasiteit
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.J. Beukes --- Hoëveldstreek, Departement van Landbou,Veldkapasiteit (VK) is bepaal op 5x5 m-persele op verskeie gronde in Wes-Kaapland. Tekstureel het die gronde gewissel van growwe sand tot sandklei. Gronde van die Avalon-, Dundee-, Fernwood-, Hutton-, Oakleafen Westleighvorme is gebruik. Matrikspotensiaal (ψm) is gemonitor met kwiktensiometers, terwyl... -
Die invloed van swartpunt by gars (Hordeum distichon) op ontkieming en α-amilase-aktiwiteit
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. C.J. Maree --- Departement Akkerbou en Weiding, A. L.P. Caims --- Departement Akkerbou en Weiding,Gesonde garssaad en swartpuntgarssaad vanaf verskillende lokaliteite is vergelyk. Die ontkiemingsenergie van gesonde saad was na een maand beduidend beter as die van swartpuntsaad. Na 'n opbergingperiode van twee tot drie maande het geen verskille in ontkiemingsenergie en -kapasiteit meer... -
Die rol van koolhidraatreserwes by kwekeryprestasie van appelhardehoutsteggies
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. J.C. Stassen --- ,Sterk eenjarige winterlote van 'n tien-jaar-oue Merton-793-moederplantasie is opgedeel in steggies van 30 cm lengte. Die basale steggie is gesny vanaf die punt van aanhegting, met die tweede en derde steggie in opeenvolgende posisies nader aan die lootpunt. Die posisie... -
Yield assessment of advanced wheat breeding lines the Winter Rainfall Region of South Africa. I. Homogeneity of the region
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.F. Marais --- ,The major wheat-producing areas in the Winter Rainfall Region are geographically divided into the Rûens and Swartland. The question whether the Rûens and Swartland should be regarded as non-similar areas, each meriting its own wheat-breeding programme, is considered. Correlations between... -
Empinese verwantskappe tussen veldkapasiteit en sekere fisiese grondeienskappe
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.J. Beukes --- Hoëveldstreek, Departement van Landbou en Watervoorsiening,Veldkapasiteit (VK) is in situ bepaal op verskeie gronde in Wes- Kaapland. Grondtekstuur het gewissel van sand tot sandklei. Veldkapasiteit is op vyf dieptes bepaal en het gevarieer van 4,9% tot 27,2% op massabasis. Matrikspotensiaal by VK het gewissel van... -
Osmoconditioning of seeds of sweet pepper (Capsicum annuum L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.A. van de Venter --- Magaretha Mes Institute for Seed Research, Rentia Hoffman --- Magaretha Mes Institute for Seed Research,Germination rate of seeds of sweet pepper (Capsicum annuum L.) cv. Florida Resistant Giant was increased significantly at both 15 °C and 25 °C after osmotic priming for 10 days at 15 °C in solutions of polyethylene glycol. Post-treatment drying... -
A comparison of several nitrogen- availability indices on four Natal maize-producing soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B.L. Schroeder --- , Republic of South Africa M. P.W. Farina --- , Republic of South Africa M.V. Fey --- Department of Soil Science and Agrometeorology, Republic of South AfricaFour methods used in obtaining nitrogen-availability indices were compared using soil and plant samples taken from maize trials conducted on four widely differing Natal soils. NO3 − N was determined after extraction of the soil with NH4HCO3, Ca(OH)2 and KCl,... -
Morphogenesis of Malus domestica cv. Starking flower buds
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: O. Bergh --- ,Differentiation of reproductive buds of the Starking apple (Malus domestica) was studied by scanning electron microscopy. Differentiation of reproductive structures was initiated during the first week of January when the shoot apex flattened. In terminal flower primordia, sepal primordia were... -
Effect of the previous crop on cortical cell number of Malus domestica cv. Starking Delicious apple flower primordia, flowers and fruit
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: O. Bergh --- ,The effect of the crop of the previous season on cell size of the cortical region of flower primordia, flowers and fruit size in Starking Delicious apples was investigated. Cell number was monitored from the onset of differentiation of the... -
Effects of level and timing of irrigation on growth and water use of lucerne
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.J. Beukes --- Department of Agriculture and Water Supply, S.A. Barnard --- Department of Agriculture and Water Supply,A six-year flood irrigation trial with lucerne (Medicago sativa cv. Karoo) was conducted on a sandy loam soil in the south-western part of the Cape Province at Oudtshoorn. Two cropping practices, whereby one or two forage cuttings are followed by... -
A proposed mechanism for the volatilization of ammonia from fertilized neutral to alkaline soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.C. du Preez --- Department of Soil Science, R. du T. Burger --- Department of Soil Science,Ammonia volatilization from five soils, ranging in clay content from 7,6 to 49,9%, were determined after pH values of the soils were adjusted to 8,0. Ammonium sulphate, limestone ammonium nitrate, urea, monoammonium phosphate and diammonium phosphate were applied on the... -
Die invloed van nat grondtoestande op die vrugkwaliteit van appels
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.F. Lourens --- ,Vrugontledings op appels van bome op gedeeltelik versuipte gronde gedurende die vruggroei-periode het hoër Na- en B- en laer N- en Mg-peile getoon as appels van bome op droër gronde. Die vrugte van nat persele was fermer en het hoër... -
Kleimineralogie, katioonuitruilkapasiteit en waterhouvermoë van grondvorms in die Hoëveldstreek
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: AstridM. Hattingh --- Hoëveldstreek, Departement van Landbou en Watervoorsiening,Kleimineralogiese data vir 12 grondvorms, wat algemeen in die Hoëveldstreek voorkom, is ondersoek. Die persentasie monsters waarin 'n bepaalde kleimineraal voorkom, is bereken. Daaruit is dit duidelik dat smektiet algemeen in gronde van die Arcadia-, Bonheim, en Rensburgvorms voorkom, maar... -
An evaluation of rootstocks for apricots on sandy soil
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.D. Stadler --- , Republic of South Africa P. J.C. Stassen --- , Republic of South AfricaThe nematode-resistant rootstocks Okinawa and Nemaguard yielded better than all other rootstocks for Royal on sandy soil. Bulida performed best on apricot seedling rootstock followed by Okinawa. Prunus mume did not appear promising for either Royal or Bulida. Both Royal... -
Laboratory measurements of ammonia volatilization from five nitrogen-containing fertilizers after surface application at different rates on a neutral to alkaline soil
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.C. du Preez --- Department of Soil Science, Republic of South Africa R. du T. Burger --- Department of Soil Science, Republic of South AfricaVolatilization losses of NH3 from five fertilizers, namely (NH4)2SO4, LAN, urea, MAP and DAP were determined. The fertilizers were applied to a Bainsvlei soil of which the pH was adjusted to 6,5; 7,6; 8,3 and 9,1. The application levels were... -
Effect of application methods on ammonia volatilization from soils in a controlled environment
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.C. du Preez --- Department of Soil Science, Republic of South Africa R. du T. Burger --- Department of Soil Science, Republic of South AfricaThe objective of this investigation was to compare different application methods whereby ammonia losses from nitrogen fertilizers can be limited when applied to alkaline soils. Three application methods were simulated, namely broadcasting, ploughing under and band placement. Five nitrogen fertilizers,... -
Effect of rate and time of application of tetrapion on nassella tussock (Stipa trichotoma Nees) in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B.D. Viljoen --- Department of Agriculture and Water Supply, Republic of South AfricaTetrapion was applied at rates of 0, 44; 0, 88; 1, 76 and 3, 52 kg a.i. ha-1 at monthly intervals to nassella tussock (Stipa trichotoma Nees) plants of various ages. The efficacy of the three higher tetrapion rates was... -
Estimating Class A pan evaporation at locations with sparse climatic data
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B. Clemence --- , Republic of South AfricaClass A pan evaporation was found to correlate closely with daylength-adjusted maximum daily air temperature (ATM), on a bimonthly basis. ATM and altitude were used as variables in a regression analysis to develop a series of evaporation-estimation equations for various... -
Variations in floristic and palatability composition, yield of veld and of soil characteristics on a paddock scale
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.L. Barnes --- Department of Agriculture and Water Supply (Transvaal Region), Republic of South Africa G.D. Kotzé --- Department of Agriculture and Water Supply (Transvaal Region), Republic of South Africa B.H. Beukes --- Department of Agriculture and Water Supply (Transvaal Region), Republic of South Africa C. Kohlmeyer --- Department of Agriculture and Water Supply (Transvaal Region), Republic of South AfricaFive parallel 900-m line-transects were laid out 100 m apart in relatively homogeneous veld. Floristic composition, yields of dry matter, soil forms and series, effective depth, clay content of the top and subsoil, and the pH of the topsoil were... -
Rapid vegetative propagation of pineapples by crown sectioning
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Mariana Fitchet --- , Republic of South Africa H.A. van de Venter --- , Republic of South AfricaPineapples can be rapidly multiplied and propagated by means of crown sections in a peatmoss and vermiculite mixture (2:1). Each section can produce a new plantlet within 65 days and the development of dormant buds may be promoted by the... -
Risk analysis of wheat production in the central Orange Free State using a growth model
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A. Singels --- Department of Agrometeorology, Republic of South Africa J.M. de Jager --- Department of Agrometeorology, Republic of South AfricaA wheat crop growth model (Singels, 1983) was refined and used to calculate annual grain yield from weather data for 45 seasons in the Bloemfontein area. Five different levels of profile-available water capacity were used as soil input parameter. Other... -
'n Evaluasie van twee chromatografiese metodes vir die roetine-bepaling van nikotien en nornikotien in tabak
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.G. Nel --- , Republiek van Suid-AfrikaTen einde 'n geskikte metode op 'n tyd- en kostebasis te vind vir die roetine-ontleding van nornikotien in tabakmonsters, is twee tegnieke van individuele alkaloïedbepalings vergelyk. Met die dunlaagchromatografiese metode kon sewe verskillende alkaloïedes in een van die monsters wat... -
Watervlakke in sekere gronde van die Noordwestelike Oranje-Vrystaat
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. A.G. Henning --- , Republiek van Suid-Afrika D.J. Nel --- Departement Bodemkunde, P.U. vir C.H.O., Republiek van Suid-AfrikaDie akkumulasie van vrywater in sekere gronde in die Noordwestelike Oranje-Vrystaat word geassosieer met verskillende tipes stadig-deurlaatbare lae (keerlae). Voorlopige ondersoeke het aangetoon dat die langtermyn-storing van water verskil tussen twee tipes keerlaag, naamlik 'n kleilaag en 'n harde plintiese... -
A simple, accurate method of estimating maximum total evaporation from a wheat crop during the daylight period
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W.H. van Zyl --- Department of Agrometeorology, Republic of South Africa J.M. de Jager --- Department of Agrometeorology, Republic of South Africa C.J. Maree --- Department of Agrometeorology, Republic of South AfricaThe use of empirical relationships for the calculation of the energy and aerodynamic components of the Penman-Monteith equation were tested against measured data. Accurate estimates of maximum total evaporation, Em, from a wheat crop were obtained. The empirical equation utilizes... -
Effect of time and rate of nitrogen application on the malting quality of barley
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: O.T. de Villiers --- Department of Agronomy and Pastures, Republic of South Africa P. C.J. Maree --- Department of Agronomy and Pastures, Republic of South Africa E.W. Laubscher --- Department of Agronomy and Pastures, Republic of South AfricaField trials were conducted to determine the effect of time and rate of single and split applications of nitrogen on various malting parameters of barley. The effect of a single low nitrogen application of 50 kg Nha−1 at sowing was... -
Haploids in barley breeding
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: GailM. Littlejohn --- Department of Genetics, Republic of South Africa R. de V. Pienaar --- Department of Genetics, Republic of South AfricaHaploids are organisms which possess the gametic chromosome number in their somatic tissues. They may arise spontaneously or be induced in a number of ways. Since 1970 haploids have been used as a method of producing pure lines in barley... -
The effects of 2,4-D iso-octyl ester/ioxynil herbicide in the liquid and vapour phases on the growth of tomato (Lycopersicon esculentum Mill.) plants
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: R.J. Bennet --- Department of Agriculture and Water Supply, Republic of South AfricaControlled-environment studies confirmed that tomato plants subjected to a range of treatments involving the herbicide 2,4-D iso-octyl ester/ioxynil applied in the vapour and liquid phases develop symptoms of phytotoxicity in proportion to the severity of the treatment. Plants which received... -
Geographical distribution of monthly mean daily global solar radiation over South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. C.M. Reid --- , Republic of South Africa J.M. de Jager --- Department of Agricultural Meteorology, Faculty of Agriculture, Republic of South AfricaSolar radiation is the driving force which most directly influences the surface water balance and crop yields. In South Africa this variable is measured at a limited number of sites. In order to determine the geographic distribution of monthly mean... -
Kaliumvaslegging in 'n Arcadia-grond II. Vaslegging in die kleifraksie
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.J. Steenkamp --- , Republiek van Suid-Afrika A.A. Theron --- Departement Grond- en Waterboukunde, Republiek van Suid-Afrika J.A. de Bruyn --- Departement Botanie, Republiek van Suid-AfrikaOndersoek is ingestel na die invloed van relatief lae toedienings van kalium, asook drogingstemperatuur, op die vermoë van die kleifraksie van 'n Arcadia-grond, versadig met kalsium of magnesium, om kalium vas te lê. Die verskil in reaksie tussen die behandelings... -
Abnormalities of the growth point and ear of barley caused by 2,4-dichlorophenoxy acetic acid
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.W. Loubser --- Department of Agriculture and Water Supply, Republic of South Africa A. L.P. Cairns --- , Republic of South AfricaTreatment of barley plants with 2,4-D, when the main tiller apical meristem was in the late vegetative or double ridge stage, resulted in the production of various abnormalities including missing spikes, branched spikes, whorls of spikelets and paired spikelets instead... -
Comparison of methods for estimating cation exchange capacity of orchard soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Marie Conradie --- , Republic of South Africa W. A.G. Kotze --- , Republic of South AfricaVarious methods for estimating soil cation exchange capacity (CEC) were compared. CEC obtained by the sum of extractable cations and the Adams-Evans buffer method were considerably higher than those obtained by saturation and displacement of either NH4 + or Na+... -
The effect of lime, KCl and parent material on the cation exchange capacity of some acid subsoils of the western Cape
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. Wooldridge --- , Republic of South AfricaCation exchange capacity (CEC) values obtained by 22Na dilution for a number of mineralogically diverse acid subsoils reflected positive responses to lime and to treatment with KCl such that: CEC (unlimed, no KCl) < (unlimed + KCl) < (limed, no... -
Effect of cyanamide and DNOC/oil on budbreak, yield and fruit size of Golden Delicious apples
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M. North --- , Republic of South AfricaCalcium cyanamide (CaCN2), hydrogen cyanamide (H2CN2) and DNOC/oil (dinitro-o-cresol/oil emulsion) were evaluated as rest-breaking agents on Golden Delicious apples during two seasons and in two climatic zones. In the moderate climatic zone, a double and single application of DNOC/oil gave... -
The effect of some chemical agents on thinning of Golden Delicious and Granny Smith apples
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.F. Lourens --- , Republic of South AfricaThinning trials were carried out with various chemical compounds on Golden Delicious and Granny Smith apple trees over a period of three years in the Elgin area in the western Cape. The scorching agents dinoseb (2-sec-butyl-4,-6-dinitrophenol) and paraquat (1,1'-dimethyl-4,4′-bipyridinium ion)... -
Effect of time of hand-thinning on apple fruit size
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: O. Bergh --- , Republic of South AfricaThe effect of time of hand-thinning on fruit size of Starking, Starkrimson and Starkspur Golden Delicious was studied during two consecutive seasons. In the first season trees were thinned at weekly or fortnightly intervals, commencing at full bloom until eight... -
Effect of temperature during the first 42 days following full bloom on apple fruit growth and size at harvest
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: O. Bergh --- , Republic of South AfricaThe relationship between temperature prevailing during the 42-day period following full bloom (42 DFFB) and fruit size at harvest of four apple cultivars was studied for two seasons. Lower temperatures during the first season resulted in smaller fruit whereas higher... -
Proposed regression model for calculating optimum crop levels of apple trees
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: O. Bergh --- , Republic of South AfricaThe value per ton of Golden Delicious, Granny Smith, Starking and Starkrimson fruit was calculated by assigning values per carton to each of six size groups of fruit harvested from individual trees in experimental orchards during the four seasons 1978/79... -
Controlling excessive growth in cotton by multiple applications of low concentrations of mepiquat chloride
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.C. Dippenaar --- , Republic of South Africa C.R. Nolte --- , Republic of South Africa C. Barnard --- , Republic of South AfricaExcessive vegetative growth of cotton occurs under favourable growing conditions and this contributes to yield losses. Low concentrations of mepiquat chloride (1, 1-dimethylpiperidinium chloride) were applied to vigorous, growing cotton by means of two or more sprays at different time... -
The importance of certain insects as pollinators of sunflower (Helianthus annuus L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.P. du Toit --- , Republic of South AfricaThis study reports the effects of Apis mellifera L. (honeybees), Astylus atromaculatus Blanchard (spotted maize beetles), Heliothis armigera Hübner (American bollworm larvae) and Musca domestica L. (house flies) on seed set in commercial sunflower. The pollination efficiency of these insects... -
Die verwantskap tussen maksimum nitrifikasietempo en relevante eienskappe van gronde vanaf die sentrale besproeiingsgebiede in Suid-Afrika
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.J. Laubscher --- Departement van Grondkunde, Republiek van Suid-Afrika C.C. du Preez --- Departement van Grondkunde, Republiek van Suid-AfrikaDie oogmerk van die studie was om die verwantskappe tussen maksimum nitrifikasietempo (Kmaks) en relevante eienskappe van die gronde vanaf die sentrale besproeiingsgebiede uit te wys. Die verloop van nitrifikasie is in agt gronde, afkomstig van die gebiede, gemonitor na... -
Urease-aktiwiteite in gronde van die sentrale besproeiingsgebiede in Suid-Afrika
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: F. P.J. Thormählen --- Departement van Grondkunde, Republiek van Suid-Afrika C.C. du Preez --- Departement van Grondkunde, Republiek van Suid-AfrikaDie oogmerk met die studie was om die omvang van urease-aktiwiteite in die besproeide gronde vas te stel en watter grondparameters dit beïnvloed. Die verloop van hidrolise is in agt gronde, afkomstig van die sentrale besproeiingsgebiede, gemonitor na toediening van... -
Use of estimated leaf water potential for irrigation timing of wheat
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.A. Nel --- , Republic of South Africa F.J. Dijkhuis --- , Republic of South AfricaA regression model with which the leaf water potential (LWP) of wheat can be estimated from soil water content and potential evapotranspiration was developed from data generated during 1986. This model was used during the 1988 wheat season to decide... -
The influence of method of inoculation and certain herbicides on nodulation and seed yield of soybeans
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.L. Greenfield --- Department of Agronomy, Republic of South AfricaField trials were conducted on soybeans (Glycine max (L.) Merr.) in a hot, dry environment under irrigation and a warm, moist environment on soils on which the crop had not previously been grown. The aim was to assess the effectiveness... -
The effect of ridging on the soil water status of a waterlogged vineyard soil
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.A. Myburgh --- , Republic of South Africa J.H. Moolman --- Department of Soil and Agricultural Water Science, Republic of South AfricaIn a field trial conducted in a vineyard on a low-lying hydromorphic soil, it was established that ridging increased the depth from the soil surface to the water table. Ridging did not lower the level of the water table, but... -
Ridging—a soil preparation practice to improve aeration of vineyard soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.A. Myburgh --- , Republic of South Africa J.H. Moolman --- Department of Soil and Agricultural Water Science, Republic of South AfricaWaterlogged soil conditions during early spring can result in poor grapevine performance. In this study the effect of ridging as a method of soil preparation on the depth to the water table, soil air composition and vine reaction, as indicated... -
Antagonistic effect of MCPA on Avena sterilis with tralkoxydim
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B.L. de Villiers --- Small Grain Centre, Republic of South Africa D. du Toit --- , Republic of South AfricaControl of wild oats (Avena sterilis ssp. ludoviciana Nyman) with tralkoxydim {2-[1-(ethoxyimino)propyl]-3- hydroxy-5-(2,4,6-trimethylphenyl) cyclohex-2-enone} in a tank mix with MCPA (2-methyl-4-chloro phenoxy acetic acid) and/or bromoxynil (3,5-dibromo-4-hydroxybenzonitrile-octanoate and heptanoate esters) was determined under controlled conditions. Tralkoxydim alone and combinations with... -
Diversity, abundance and behaviour of diurnal insects on flowering capitula of commercial sunflower in the Transvaal
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.P. du Toit --- Apicultural Unit, Republic of South Africa E. Holm --- Department of Entomology, Republic of South AfricaSunflower, Helianthus annuus L., is an insect-pollinated crop and the different insect taxa visiting the flowering head play a role of greater or lesser importance in cross-pollination. Species diversity, abundance and behaviour of insects visiting commercial sunflower during flowering are... -
Alternative rest-breaking agents to DNOC/oil for apples
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.S. North --- , Republic of South AfricaRest-breaking agents less toxic than the commercially-used DNOC/winter-oil and less expensive than hydrogen cyana- mide were tested on Golden Delicious in a high density planting in a region of warm winters. Some combinations of mineral oil and cyanamide were as... -
Effek van ureumkonsentrasies op die urease-aktiwiteite in gronde van die sentrale besproeiingsgebiede in Suid-Afrika
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: F. P.J. Thormählen --- Departement van Grondkunde, Republiek van Suid-Afrika C.C. du Preez --- Departement van Grondkunde, Republiek van Suid-AfrikaDie oogmerk met die studie was om vas te stel by watter ureumkonsentrasies die urease In die besproeide gronde versadlg of geinhibeer word. Die verloop van hldrolise is In ses gronde met verskillende urease-aktiwi- teite gemonitor na toediening van ureum... -
Cumulative effect of time of hand-thinning on fruit size of Golden Delicious and Granny Smith apples
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: O. Bergh --- , Republic of South AfricaThe cumulative effect of time of hand-thinning on fruit size of Golden Delicious and Granny Smith apple trees was studied during seven consecutive seasons for Golden Delicious and four consecutive seasons for Granny Smith. Trees were thinned to single flowers... -
Effect of different day and night temperatures on the diurnal growth rate of terminal and lateral fruits in Golden Delicious apple
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: O. Bergh --- , Republic of South Africa DeV. Cloete --- , Republic of South AfricaThe diurnal growth rate of terminal and lateral fruitlets in the same cluster was studied in Golden Delicious under varying night and day temperature conditions In growth chambers as well as in the open. Terminal and lateral fruitlets had a... -
Pollination activity and behaviour of honeybees (Apis mellifera L.) in commercial sunflower in the Transvaal
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.P. du Toit --- , Republic of South Africa E. Holm --- Department of Entomology, Republic of South AfricaHoneybee foraging activity in commercial sunflower fields was studied at Settlers, 100 km north of Pretoria. Foraging activity, which was studied by means of the conventional strip count method, commenced after sunrise and reached a peak of 38 foragers per... -
Effect of ridging on the temperature regime of a waterlogged vineyard soil
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.A. Myburgh --- , Republic of South Africa J.H. Moolman --- Department of Soil and Agricultural Water Science, Republic of South AfricaWaterlogged conditions in hydromorphic soils during spring cause low temperatures which may restrict grapevine performance. Ridging is a soil preparation method that can improve internal drainage in the root zone. Temperature measurements showed that ridging tended to increase temperatures in... -
Heat-shock protein synthesis in cotton is cultivar dependent
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.A. de Ronde --- , Republic of South Africa A. van der Mescht W.A. Cress --- Department of Botany, Republic of South AfricaThe synthesis of heat-related proteins in six cotton cultivars was examined. The protein profiles of heat-stressed plants were highly cultivar specific. Heat-related proteins did not result from protein degradation. Recovery to normal protein synthesis occurred within an hour after the... -
Cabbage seed germination for the assessment of adjuvant effects on 2, 4-D iso-octyl ester volatility
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.L. Schubert --- , Republic of South Africa D.J. Erasmus --- , Republic of South Africa L.P. van Dyk --- , Republic of South Africa V. Gray --- Department of Botany, Republic of South AfricaThe germination rate of cabbage seeds (Brassica oleracea cv. Hercules) exposed to the vapour of the 2,4-dichlorophenoxy iso-octyl ester (2,4-D IOE) was used in a bioassay to determine the effectiveness of commercial adjuvants in reducing the volatility of this hormonal... -
Season of application and glyphosate formulation as factors influencing the efficacy of glyphosate on phyllode-bearing Australian acacias
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.J. Pieterse --- Department of Agronomy and Pastures, Republic of South Africa J.B. McDermott --- , Republic of South AfricaInvasive phyllode-bearing Australian acacias are more difficult to control chemically than true-leaved acacias. Indications were that season of application influenced the efficacy of herbicides when used against these plants. In this experiment two formulations of glyphosate (with low and high... -
The yield response of annual ryegrass (Lolium multiflorum) to varying nitrogen fertilizer application strategies
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: R.J. Eckard --- , Republic of South Africa P.E. Bartholomew --- , Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South AfricaAnnual ryegrass (Lolium multiflorum LAM. cv. Midmar) pastures were established on three sites, representing the Avalon, Katspruit and Inanda soil forms, with cut-plot experimentation over a period of four years (1987 - 1990). Nitrogen fertilizer was top-dressed at 0, 200,... -
The influence of applied nitrogen on herbage yield and quality of Lolium perenne L. pastures during the establishment year under subtropical conditions
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: F.R. McKenzie --- Department of Grassland Science, Republic of South AfricaThe dry matter (DM) yield, cellulase DM disappearance (CDMD) and herbage nitrogen (N) of sheep-grazed perennial ryegrass [Lolium perenne (L.)] during its establishment year was evaluated. Yield and quality were monitored under N applications ranging from 120 to 720 kg... -
Extraction and electrophoretic separation of proteins from leaves of scions and rootstocks of Vitis cultivars
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: E.W. le Grange --- , Republic of South Africa O.T. de Villiers --- Department of Botany, Republic of South AfricaProteins were extracted and separated by SDS-PAGE from leaves of scions and rootstocks of different Vitis cultivars. Banding patterns were used to identify the different cultivars after extraction of the proteins with a medium containing Tris-HCI (0.68 M, pH 7.8),... -
Water-holding capacity of rock fragments in rehabilitated opencast mine soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.L. Schoeman --- , South Africa M.M. Kruger --- , South Africa A.H. Loock --- , South AfricaThe water-holding capacity of rock fragments sampled from spoil materials underlying rehabilitated opencast coal mine soils was determined. Four rock types, ranging from grit and coarse sandstone to carbonaceous shale, and four fractions of different size were investigated by means... -
The influence of Demeton-S-Methyl/Parathion and Imidacloprid on the yield and quality of Russian wheat aphid resistant and susceptible wheat cultivars
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: VickiL. Tolmay --- , South Africa D. van Lill --- , South Africa MarieF. Smith --- , South AfricaRussian wheat aphid, (Diuraphis noxia) causes severe damage to wheat in South Africa and producers have been forced to use insecticides for control. Plant resistance to Russian wheat aphid has been successfully transferred into bread wheat cultivars. A split plot... -
The aluminium response network in wheat (Triticum aestivum L.): I. The root growth reactions
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: R.J. Bennet --- , Republic of South AfricaThe mechanistic basis of Al rhizotoxicity was investigated through a time-based analysis of the growth reactions seen in hydroponically-grown roots of wheat isolines (IS and IT) differing in Al tolerance, when exposed to 75 μM Al (pH 4.1) for times... -
Association of a stem rust resistance gene (Sr45) and two Russian wheat aphid resistance genes (Dn5 and Dn7) with mapped structural loci in common wheat
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.F. Marais --- Department of Genetics, Republic of South Africa W.G. Wessels --- Department of Genetics, Republic of South Africa M. Horn --- Department of Genetics, Republic of South Africa F. du Toit --- , Republic of South AfricaA stem rust resistance gene, originally derived from Triticum tauschii accession RL5289 and present in the germplasm line 87M66-2-1, is here designated Sr45. Sr45 was found to be closely linked to Sr33 (9 ± 1.9 map units) and the centromere... -
A comparison of three methods of soil water content determination
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: K.M. Little --- , Republic of South Africa B. Metelerkamp --- , New Zealand C.W. Smith --- , Republic of South AfricaIn forestry the need to manage plantations on a sustainable site-specific basis requires the understanding and management of any growth limiting factors. Soil water regime is a factor considered to be of prime importance with respect to explaining differences in... -
Classifying the sensitivity of soils of the South African highveld to acidification
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.V. Fey --- Department of Geological Sciences, Republic of South Africa H.A. Dodds --- Department of Geological Sciences, Republic of South AfricaThe potentially acidifying impact of air pollution coupled with agriculture and forestry has stimulated interest in the spatial assessment of soil quality deterioration in the highveld and eastern escarpment region of South Africa. Current information on soils is available as... -
A comparison of HMW-GS, LMW-GS and RAPD fingerprinting for cultivar identification of some South African wheat cultivars
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.T. Labuschagne --- Department of Plant Breeding, Republic of South Africa H. Maartens --- Department of Plant Breeding, Republic of South Africa A.M. Oberholster --- Department of Genetics, Republic of South AfricaAccurate identification of breeding material is very important for the plant breeder. In South Africa, high molecular weight glutenin subunits (HMW-GS) have so far been used for wheat cultivar identification. This method can often not distinguish between cultivars, and other... -
Detecting nitrogen deficiency on irrigated cash crops using remote sensing methods
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.S. Fouche --- Department of Soil Science, Republic of South AfricaEarly detection of nitrogen deficiency on annual agricultural crops can assist the management of N-fertilization to improve crop yields. Low altitude aerial photography is an inexpensive means to assess crop canopy radiation in the near infrared range. In this study,... -
Influence of adjuvants on tetrapion efficacy for nassella tussock (Stipa trichotoma Nees) control and subsequent seedling establishment: a preliminary study
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B.D. Viljoen --- , Republic of South AfricaNassella tussock (Stipa trichotoma Nees) is a perennial grass weed that seeds prolifically, resulting in build-up of a large soil seed bank. Due to it's vigorous growth it has the potential to spread rapidly in disturbed environments and overgrazed areas... -
Inheritance of resistance to Russian wheat aphid, Diuraphis noxia (Homoptera: Aphididae) in two wheat lines
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Vicki Tolmay --- , Republic of South Africa C.S. van Deventer --- , Republic of South Africa M.C. van der Westhuizen --- , Republic of South AfricaThe Russian wheat aphid, Diuraphis noxia, is a serious pest of wheat grown in the summer rainfall regions of South Africa. The use of D. noxia resistant cultivars may reduce the impact of this pest on cereal production, at the... -
Using Ground Penetrating Radar to investigate spoil layers in rehabilitated minesoils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.G. Paterson --- , Republic of South Africa M.C. Laker --- Department of Plant Production and Soil Science, Republic of South AfricaOpencast coal mining on the Highveld of Mpumalanga involves the disturbance of highly productive soils, which must then be rehabilitated on top of the mined spoil. Various problems in this process may occur, however, which may lead to water-logging, compaction... -
Maize cultivars differ in tolerance to imazethapyr
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.J. van Wyk --- Department of Plant Production and Soil Science, Republic of South Africa C.F. Reinhardt --- Department of Plant Production and Soil Science, Republic of South AfricaThe low tolerance of maize (Zea mays L.) to imazethapyr ((±)-2-[4,5-dihydro-4 methyl-4-(1 -methylethyl)-5-oxo 1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acid) resulted in extensive crop damage in 1992/93 due to residue carry-over from resistant soybean (Glycine max L.). Pot experiments were conducted to assess the role... -
RAPD analysis of selected common bean (Phaseolus vulgaris L.) cultivars from three African countries
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C. M.S. Mienie --- , Republic of South Africa L. Herselman --- , Republic of South Africa R.E. Terhlanche --- , Republic of South AfricaDNA from six dry bean cultivars was analysed with a total of thirty two primers in RAPD analysis to develop a method to distinguish between the different cultivars. The varieties are cultivated in three African countries and belong to two... -
The aluminium response network in Themeda triandra Fosk. III: Regulatory mechanisms and aluminium tolerance
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: R.J. Bennet --- , Republic of South Africa J.E. Granger --- , Republic of South AfricaAluminium toxicity was investigated by analyzing the reaction of hydroponically-grown plants of two ecotypes of T. triandra to Al (0, 25, 50, 100 μM; pH 4.1; for 28 days). The Al-tolerant 'Berg ecotype responded to the Al treatments by increasing... -
Seasonal variations in carbohydrate content of Carica papaya plants
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. Allan --- Horticultural Science, Republic of South AfricaMonthly samples were collected of roots, stems, petioles and leaf blades of clonal female ‘Honey Gold’ papaw (Carica papaya L.) plants, in the cool subtropical Pietermaritzburg area, to study any seasonal variations in carbohydrate content of this tropical plant which... -
The effect of soil compaction on the water retention characteristics of soils in forest plantations
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: CW Smith --- , MA Johnston --- , SA Lorentz --- ,A study was carried out to evaluate the relative effects of soil compaction on the water retention characteristics of a range of soils in forest plantations in the summer rainfall regions of South Africa. In all cases compaction resulted in... -
Use of solid waste bagasse from a paper mill as an organic amendment and its effect on some soil properties: a case study
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.C. Hughes --- Soil Science, South Africa S. J.A. Girdlestone --- Soil Science, South AfricaAt a paper mill in KwaZulu-Natal, South Africa bagasse waste was disposed of by burying it in a layer resulting in variable sugar cane growth. The waste was mostly organic fibres, had a high water holding capacity, and contained small... -
Development of a sequence characterized amplified region (SCAR) marker for the identification of the potato cultivars Astrid and Mnandi
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W.S. Jansen van Rensburg --- , South Africa I.A. Dubery --- Department of Biochemistry, South AfricaAstrid and Mnandi are two closely related potato cultivars of commercial importance in Southern Africa. Random amplified polymorphic DNA (RAPD) markers were screened and a sequence characterized amplified region (SCAR) marker was developed to distinguish between these two cultivars since... -
Effect of foliar- and soil-applied boron in deciduous fruit orchards 1: apple and pear
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. Wooldridge --- , South AfricaBetween autumn 1996 and May 1998 a variety of boron (B) treatments were applied to mature apple and pear trees on soils containing 0.3 to 0.5 mg B kg−1. Average mid-season apple leaf B levels in the B treatments were... -
Effect of foliar- and soil-applied boron in deciduous fruit orchards 2: apricot and peach
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. Wooldridge --- , South AfricaBetween autumn 1996 and May 1998 a variety of boron (B) treatments were applied to mature apricot and peach trees in Western Cape orchards on soils containing 0.2 to 0.7 mg B kg−1. Leaf B levels in the B treatments... -
Status of resistance of sorghum hybrids to the aphid, Melanaphis sacchari (Zehntner) (Homoptera: Aphididae)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. van den Berg --- , South AfricaFour field trials were conducted over four seasons during the period from 1996/97 to 2000/2001 to determine the status of resistance of South African sorghum hybrids to natural infestation by the aphid Melanaphis sacchari. Aphid damage symptoms were evaluated on... -
Effect of early-season zinc sprays on ‘Golden Delicious’ apple
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. Wooldridge --- , Republic of South Africa C. Schutte --- , Republic of South AfricaA factorial field trial was carried out in a ‘Golden Delicious’ apple orchard in the Elgin area to test the hypothesis that early- season zinc (Zn) sprays exacerbate russet, and to determine the stage of development at which Zn sprays... -
Effect of leaf feeding by Melanaphis sacchari (Zehntner) (Homoptera: Aphididae), on sorghum grain quality
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. van den Berg --- , South Africa A.J. Pretorius --- , South Africa M. van Loggerenberg --- , South AfricaA study was conducted to determine the effect of leaf feeding by the aphid, Melanaphis sacchari, on grain quality of sorghum. A field trial was planted with two sub-blocks. Each sub-block was planted with ten similar sorghum hybrids. One sub-block... -
First report of groundnut leafminer, Aproaerema modicella (Deventer) (Lepidoptera: Gelechiidae) on groundnut, soybean and lucerne in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H. du Plessis --- , South AfricaThe groundnut leafminer, Aproaerema modicella is an important pest of groundnut and soybean in South and South-East Asia. It has also been reported from Uganda, Malawi and Mozambique. During 2000, it was first noticed on groundnut in South Africa. Since... -
Alternative rest-breaking agents evaluated on ‘Golden Delicious’ apple trees
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M. North --- , Republic of South AfricaTo reduce the growth abnormalities associated with insufficient winter chilling, most of the apple (Malus domestica Borkh.) trees growing in the Western Cape of South Africa receive an annual application of a chemical restbreaking agent (RBA) at the end of... -
Number and concentration of calcium nitrate plus Kelpak® sprays for control of bitter pit in 'Braeburn5 apple fruit
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M. North --- , J. Wooldridge --- ,In a spray trial to test the effects of calcium nitrate and a kelp extract (Kelpak®), fruit calcium (Ca) concentrations in ‘Braeburn’ apples peaked between 7.6 and 9.5 mg 100 g−1 fresh mass (FM) on 19 December 2000, then declined... -
Ceramic suction samplers: A reliable method for extracting soil solutions for analysis
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L. Grobler --- Department of Plant Production and Soil Science, South Africa A.S. Claassens --- Department of Plant Production and Soil Science, South Africa J.G. Annandale --- Department of Plant Production and Soil Science, South AfricaCeramic samplers are used to extract soil solutions at different depths from the soil profile for chemical analysis. The advantage of this method is that samples can be taken at any time provided that the soil water potential is high... -
Possible flood irrigation technologies to reduce water use of Sultanina grapevines in a hot, arid climate
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.A. Myburgh --- , South AfricaGrowth, production and water use efficiency of Sultanina grapevines irrigated by means of methods where only a fraction of the soil was wetted, were compared to full surface flood irrigation in the hot, arid Lower Orange River region of South... -
Suppression of silver-leaf bitter apple (Solanum elaeagnifolium Cav.) by cultivated pasture crops under dry-land conditions: a preliminary study
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B.D. Viljoen --- Weed Laboratory, Republic of South Africa V.D. Wassermann --- , Republic of South AfricaSuppression of the weed silver-leaf bitter apple (Solarium elaeagnifolium Cav.) by three pasture species, under dry-land conditions, was studied in a field trial over four seasons in the Free State Province. The pasture crops used were oats (Avena sativa), smuts... -
Apparatus for non-destructive measurement of grapevine trunk cross-sectional area
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.A. Myburgh --- , South Africa F. Coetzee --- , South AfricaMeasuring sap flow in grapevine trunks, using the heat pulse velocity technique, requires accurate, non-destructive measurement of trunk cross-sectional areas. A profile measuring apparatus (PMA) was constructed to improve the accuracy of these measurements, particularly for irregular cross-sections. The low-cost... -
Fungicide sensitivity in Tapesia yallundae populations collected from 15 wheat fields in the Western Cape province of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: K. Ntushelo --- Department of Plant Pathology, Republic of South Africa P.W. Crous --- Department of Plant Pathology, Republic of South AfricaIn the Western Cape province of South Africa, eyespot disease (Tapesia yallundae) of wheat is primarily controlled by fungicide applications. Previous studies have shown, however, that isolates of T. yallundae vary in their response to fungicides. In the present study,... -
Suitability of two types of plastic covering on mini-tunnels for paprika seedling production in warm areas
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. Allemann --- , Republic of South Africa J. Viljoen --- , Republic of South Africa J.G. Niederwieser --- , Republic of South AfricaA trial was conducted at the ARC-Roodeplaat Vegetable and Ornamental Plant Institute to determine the difference between the two types of plastic (clear and opaque) used as covering for mini-tunnels during paprika (Capsicum anuum L.) seedling production. Two cultivars (PapriKing... -
Validation of the soil evaporation subroutine of the SWB-2D model in a hedgerow peach orchard
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P Lobit --- Department of Plant Production and Soil Science, NS Mpandeli --- Department of Plant Production and Soil Science, JG Annandale --- Department of Plant Production and Soil Science, NZ Jovanovic --- Department of Earth Sciences, N du Sautoy --- Department Soil Science,The SWB (Soil Water Balance) model, previously developed to estimate water use by agronomic crops, has been adapted to describe solar radiation interception and soil evaporation in hedgerow orchards. The distribution of solar radiation (Rs) at the soil surface is... -
Development of SCAR markers for a Thinopyrum distichum chromosome that appears to be involved in salt tolerance
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.A. Jacobs --- Department of Genetics, South Africa L. Hanekom --- Department of Genetics, South Africa A.S. Marais --- Department of Genetics, South Africa G.F. Marais --- Department of Genetics, South AfricaSixty-seven F-1 plants from the backcross: Thinopyrum distichum/tetraploid ‘Henoch’ rye//diploid ‘Henoch’ rye were cloned, tested for salt tolerance (2–4 replications per genotype) and ranked. Sixty RAPD primers were tested on the parental lines. Nine of these produced Thinopyrum specific fragments... -
Inheritance of resistance to Uromyces appendiculatus in the South African dry bean cultivar Kranskop
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.M. Liebenberg --- , South Africa Z.A. Pretorius --- Department of Plant Sciences, South AfricaThe inheritance of resistance to race RSA-Ua7 of the rust pathogen Uromyces appendiculatus in the South African dry bean (Phaseolus vulgaris) cultivar Kranskop, as well as the relationship of rust resistance between Kranskop and the international rust differential cultivars Redlands... -
Development of a doubled haploid mapping population and linkage map for the bread wheat cross Kariega × Avocet S
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: R. Prins --- , South Africa V.P. Ramburan --- , South Africa Z.A. Pretorius --- Department of Plant Sciences, South Africa L.A. Boyd --- Department of Disease and Stress Biology, John Innes Centre, UK W. H.P. Boshoff --- , South Africa P.H. Smith --- Department of Disease and Stress Biology, John Innes Centre, UK J.H. Louw --- Department of Genetics, South AfricaA doubled haploid wheat population of 150 lines was constructed from the F1 of a cross between cultivars Kariega and Avocet S using the wheat-maize technique. Segregation and linkage analysis of 203 DNA markers, two storage protein markers and the... -
Effect of adjuvants on apple fruit and leaf calcium and nitrogen concentrations at three fruit growth stages
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M. North --- , J. Wooldridge --- ,In a field trial, 0.006% v/v Agral-90® and four alternative adjuvants were evaluated to determine their effects on calcium (Ca) and nitrogen (N) uptake by leaves and fruit of ‘Golden Delicious’ apple from 0.45% m/v calcium nitrate sprays. No bitter... -
Water use of maize in response to planting density and irrigation
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. B.O. Ogola --- Department of Plant Production, South Africa T.R. Wheeler --- Department of Agriculture, UK P.M. Harris --- Department of Agriculture, UKThis study aimed to quantify the effect of plant population density and irrigation on the water use efficiency (q) of maize crops, with particular emphasis on the partitioning of water use into transpiration (T) and direct evaporation of water from... -
Breeding for rust resistance increases dry bean productivity in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.M. Liebenberg --- , South Africa A.J. Liebenberg --- , South Africa Z.A. Pretorius --- Department of Plant Sciences, South AfricaInfection of dry beans (Phaseolus vulgaris L.) by rust, caused by Uromyces appendiculatus Pers.: Pers. (Unger), results in regular yield and quality losses in South Africa. The growing of resistant varieties is generally considered the most cost effective control measure... -
Retention of applied phosphorus by the benchmark soils of Lesotho and quantification of their phosphorus retention indices
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S.F. Molete --- Department of Soil, Crop and Climate Sciences, South Africa C.C. du Preez --- Department of Soil, Crop and Climate Sciences, South Africa M.V. Marake --- Faculty of Agriculture, LesothoThis study was conducted with the objective of determining and quantifying the capacity of Lesotho's benchmark soils to retain applied P. The soils were incubated with a range of P levels for a period of 42 days, whereafter P retention... -
Yield retention of resistant wheat cultivars, severely infested with Russian wheat aphid, Diuraphis noxia (Kurdjumov), in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: VickiL. Tolmay --- , South Africa CS van Deventer --- Department of Plant Breeding, South AfricaRussian wheat aphid, Diuraphis noxia (Kurdjumov), has been a serious pest of wheat in South Africa since 1978. Wheat producers observed that resistant cultivars, developed for control of this aphid, differed in resistance and questioned whether insecticide treatment would be... -
Effect of extending the early season potassium supply on young ‘Keisie’ canning peach trees on a sandy, infertile soil
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. Wooldridge --- , South AfricaA field trial was carried out to investigate the effects of applying potassium (K), either in two equal parts at full bloom (FB) and 42 days after FB (2-way split); or as a 4-way split, commencing at FB, with three... -
The prediction of best line combiners and heterosis in Tanzanian maize breeding lines through the use of Amplified fragment length polymorphism (AFLPs)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B.A. Kiula --- Dakawa Agricultural Research Center, Tanzania A-M. Botha --- Department of Genetics, South Africa N.G. Lyimo --- , TanzaniaAmplified fragment length polymorphism DNA markers have been used to assist plant breeders in the choice of maize parents for commercial hybrid production. However, maize yield in Tanzania is significantly reduced by gray leaf spot (GLS) disease, which is now... -
Progress and problems in rooting clonal Carica papaya cuttings
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. Allan --- , South Africa Colleen Carlson --- , South AfricaCarica papaya (L) is one of the few fruit crops that is still propagated commercially by seed. In the cool subtropical Pietermaritzburg area, a female clone ‘Honey Gold’ has been vegetatively propagated, by rooting leafy cuttings, for over 40 years... -
Predicting the effects of nitrogen and planting density on maize water use in semi-arid Kenya
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. B.O. Ogola --- Department of Plant Production, South Africa T.R. Wheeler --- Department of Agriculture, U.K. P.M. Harris --- Department of Agriculture, U.K.Models are important tools to assess the scope of management effects on crop productivity under different climatic and soil regimes. Accordingly, this study developed and used a simple model to assess the effects of nitrogen fertiliser and planting density on... -
Evaluation and identification of old and new macadamia cultivars and selections at Pietermaritzburg
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. Allan --- Horticultural Science, South AfricaNewer and older cultivars and selections of macadamias have been evaluated at Pietermaritzburg over periods of from five to 35 years. In their sixth year, trees of some of the newer selections have produced good yields of over 10 kg... -
Effect of segregation distortion on genetic mapping of a PI 294994-derived Russian Wheat Aphid resistance gene
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.F. Marais --- Department of Genetics, South Africa W. Boshoff --- , South Africa F. du Toit --- , South AfricaAn earlier genetic mapping study with an unidentified Russian Wheat Aphid resistance gene, referred to as Dn? and derived from PI 294994, suggested that the gene occurs close to the centromere on 7DS. Closer inspection of the map data showed... -
Evapotranspiration of Vitis vinifera L. cvs Sunred Seedless and Muscat Supreme in response to soil water depletion and irrigation cutoff during berry ripening
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.A. Myburgh --- , South Africa C.L. Howell --- , South AfricaThe effects of soil water depletion and irrigation cutoff during ripening on yield, quality and evapotranspiration (ET) of table grapes were studied to refine irrigation strategies needed during hot, dry summers. Six irrigation treatments were applied to two cultivars, viz... -
Relations between phosphorus retention parameters and some other properties of benchmark soils in Lesotho
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S.F. Molete --- Department of Soil, Crop and Climate Sciences, South Africa C.C. du Preez --- Department of Soil, Crop and Climate Sciences, South Africa M.V. Marake --- , LesothoThe benchmark soils of Lesotho are characterized by high P retention and this aspect should be accommodated in fertilization programmes. This together with long procedures for determination of P retention parameters and a lack of information on the relations between... -
Investigating the use of satellite selection sites in soybean (Glycine max (L.) Merr.) breeding
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.A. Jarvie --- , South Africa P.E. Shanahan --- , South AfricaA satellite selection site is a decentralized selection environment that could be employed to expand the influence of existing breeding programmes to additional target environments. This study was designed to establish whether it would be possible to achieve site-specific adaptation... -
Using morphological characteristics to distinguish between male and female larvae and pupae of the groundnut leafminer, Aproaerema modicella (Deventer) (Lepidoptera: Gelechiidae)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A. van der Walt --- , South Africa J. van den Berg --- , South Africa H. Du Plessis --- , South AfricaThe groundnut leafminer, Aproaerema modicella (Deventer) (Lepidoptera: Gelechiidae) is a well known groundnut pest in Asia. It was first reported in east Africa during 1998 after which it rapidly spread throughout East and southern Africa. The adult is a small... -
Efficacy of glyphosate, alternative post-emergence herbicides and tillage for control of Cynodon dactylon
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: PL Campbell --- , Republic of South AfricaCynodon dactylon (L.) Pers (cynodon) is a major weed in the South African sugarcane industry. Current recommendations involve repeated application of glyphosate for prolonged control. This paper describes three trials of a study to identify alternative treatments. Trial 1 screened... -
Image analysis to quantify herbicide efficacy for Cynodon dactylon control
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.L. Campbell --- , Republic of South Africa M.T. Smith --- , Republic of South Africa C. Sewpersad --- , Republic of South Africa M. van den Berg --- , Republic of South AfricaStudies on the effectiveness of herbicides for control of Cynodon dactylon (L.) Pers. (cynodon) normally rely on visual recording methods, which are rapid and convenient, but lack objectiveness and reproducibility. To address this problem, a computer software package was customized... -
The effects of a water treatment residue on grain yield and nutrient content in seeds of common dry beans (Phaseolus vulgaris L. cv. Ghadra) grown in a dystrophic soil
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.W. Titshall --- , South Africa J.C. Hughes --- , South AfricaThis glasshouse study investigated the grain yield and nutrient content of seed of common dry beans (Phaseolus vulgaris L. cv. Ghadra) grown in a dystrophic sandy soil treated with 0, 50, 100, 200 and 400 g kg−1 water treatment residue... -
Soil water variability in the Weatherley grassland catchment, South Africa: I. Evapotranspiration
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: CW van Huyssteen --- Department of Soil, Crop and Climate Sciences, South Africa TB Zere --- Department of Soil, Crop and Climate Sciences, South Africa M Hensley --- Department of Soil, Crop and Climate Sciences, South AfricaEvapotranspiration (ET) is a major component of the soil water balance and therefore requires accurate determination to quantify catchment water yield. Six-year daily ET was determined at 300 mm depth intervals in the root zone of 28 soil profiles in... -
FAO-type crop factor determination for irrigation scheduling of hot pepper (Capsicum annuum L.) cultivars
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Y.A. Alemayehu --- Department of Plant Production and Soil Science, South Africa J.M. Steyn --- Department of Plant Production and Soil Science, South Africa J.G. Annandale --- Department of Plant Production and Soil Science, South AfricaHot pepper (Capsicum annuum L.) is an irrigated, high value cash crop. Irrigation requirements can be estimated following a FAO crop factor approach, using information on basal crop coefficients (Kcb), crop coefficients (Kc) and duration of crop growth stages. However,... -
Relationships between soil buffer capacity and selected soil properties in a resource-poor farming area in the Mpumalanga Province of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.G. Jansen van Rensburg --- Department of Plant Production and Soil Science, South Africa A.S. Claassens --- Department of Plant Production and Soil Science, South Africa D.J. Beukes --- , South AfricaIn this study, the soil buffer capacity (soil BC) was measured for 80 topsoil samples of the most dominant soil forms in a small-scale farming area. Soils used in the study ranged from weakly to strongly buffered, with soil BC... -
Assessing the potential soil acidification risk under dryland agriculture in the Mlondozi district in the Mpumalanga Province of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.G. Jansen van Rensburg --- Department of Plant Production and Soil Science, South Africa A.S. Claassens --- Department of Plant Production and Soil Science, South Africa D.J. Beukes --- , South Africa H.L. Weepener --- , South Africa P.J. Beukes --- , South AfricaThe farming community in the Mlondozi district in the Mpumalanga Province of South Africa has been part of a government liming intervention with the objective to ameliorate the serious soil acidity problem in the district. The current study was undertaken... -
Advances in pedology in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.A.L. le Roux --- Department of Soil, Crop and Climate Sciences, M. Hensley --- Department of Soil, Crop and Climate Sciences, C.W. van Huyssteen --- Department of Soil, Crop and Climate Sciences,The ability of soil to serve as a unique buffer of water, organic carbon, nutrients, pH, redox and temperature is recognised in environmental research. A detailed study on hardpan carbonate and dorbank horizons in the commonly occurring ‘heuweltjies’ of the... -
An overview of the context and scope of wheat (Triticum aestivum) research in South Africa from 1983 to 2008
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.A. Smit --- , South Africa V.L. Tolmay --- , South Africa A. Barnard --- , South Africa J.P. Jordaan --- , South Africa F.P. Koekemoer --- , South Africa W.M. Otto --- , South Africa Z.A. Pretorius --- Department of Plant Sciences, South Africa J.L. Purchase --- , South Africa J.P.C. Tolmay --- , South AfricaThe domestic requirement for wheat in South Africa is approximately 2.8 million tons and annually the shortfall on local production is imported to meet the demand. During the past 25 years two distinct wheat marketing mechanisms characterised the wheat industry,... -
The effect of degree and duration of water saturation on selected redox indicators: pe, Fe2+ and Mn2+
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: K. Smith --- Department of Soil, Crop and Climate Sciences, South Africa C.W. van Huyssteen --- Department of Soil, Crop and Climate Sciences, South AfricaIt was previously hypothesised that reduction in the soil will set in at 70% water saturation (S0.7). This study aimed to determine the effect of different degrees and durations of water saturation on reduction in soil. Reduction was measured as... -
A rapid demonstration of the self-thinning rule using radish
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: F.R. Smith --- , South AfricaThe self-thinning rule describes the relationship between individual mass and density in crowded evenly-aged plant populations in which the slope of the relationship is always greater than -1. This study investigated whether the rule could be demonstrated in six weeks... -
Growth, yield and grain protein content of wheat (Triticum aestivum L.) in response to nitrogen fertiliser rates, crop rotation and soil tillage
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: GA Agenbag --- Department of Agronomy, South AfricaSoil tillage affects both the profitability and sustainability of cropping systems. Minimum- and no-tillage systems are promoted because research has shown that these systems may reduce production costs and improve biological sustainability when compared to conventional systems, in which mouldboard... -
Selected soil properties as indicators of soil water regime in the Cathedral Peak VI catchment of KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: BT Kuenene --- Department of Soil, Crop and Climate Sciences, South Africa CW van Huyssteen --- Department of Soil, Crop and Climate Sciences, South Africa PAL Le Roux --- Department of Soil, Crop and Climate Sciences, South AfricaThe morphological features and physicochemical properties of 14 soil profiles, representing the major soil types, were studied in the Cathedral Peak VI catchment of KwaZulu-Natal, South Africa. The soils are characterised by a high organic carbon content in the topsoil,... -
Phosphorus enhances aluminium tolerance in both aluminium-tolerant and aluminium-sensitive wheat seedlings
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: MT Iqbal --- Department of Agronomy and Agricultural Extension, BangladeshSeedlings growing in acid soils suffer both phosphorus (P) deficiency and aluminium (Al) toxicity stresses. An experiment was conducted to study the effects of Al and P interaction on Al-tolerant (ET8) and Al-sensitive (ES8) wheat genotypes in an acid soil... -
Soil colour variation between topsoil and subsoil horizons in a plinthic catena on the Mpumalanga Highveld, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: JH van der Waals --- Department of Soil, Crop and Climate Sciences, South AfricaThe South African plinthic catena is characterised by a grading of soils from red through yellow to grey (bleached) soils down a slope. The colour sequence is ascribed to different Fe-minerals stable at increasing degrees of wetness. Soil survey data... -
Phytochemical content, antioxidant capacity and physicochemical properties of pomegranate grown in different microclimates in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Asanda Mditshwa --- Postharvest Technology Research Laboratory, South African Research Chair in Postharvest Technology, Faculty of AgriSciences, South Africa OlaniyiA Fawole --- Postharvest Technology Research Laboratory, South African Research Chair in Postharvest Technology, Faculty of AgriSciences, South Africa Fahad Al-Said --- Department of Crop Sciences, College of Agricultural and Marine Sciences, Sultanate of Oman Rashid Al-Yahyai --- Department of Crop Sciences, College of Agricultural and Marine Sciences, Sultanate of Oman UmezuruikeL Opara --- Postharvest Technology Research Laboratory, South African Research Chair in Postharvest Technology, Faculty of AgriSciences, South AfricaWe investigated the antioxidant and physicochemical properties of pomegranate (Punica granatum cv. Bhagwa) fruit grown in three microclimates in South Africa. The physicochemical properties of fruit peel and arils differed among the growing locations, including weight and redness color of... -
Disaggregation of land types using terrain analysis, expert knowledge and GIS methods
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: George M van Zijl --- Department of Soil, Crop and Climate Science, South Africa Pieter Al Le Roux --- Department of Soil, Crop and Climate Science, South Africa David P Turner --- Agricultural Research Council–Institute for Soil, Climate and Water, South AfricaSoil maps’ value is increasingly recognised for enabling the optimal management of ecosystems. Digital soil mapping (DSM) can overcome the cost constraints of traditional mapping methods, but requires local area-specific research. As South Africa is blessed with the land type... -
Principal agronomic and seed oil traits in the industrial oil crop vernonia (Centrapalus pauciflorus var. ethiopica)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Hussein A Shimelis --- School of Agricultural, Environmental and Earth Sciences, African Centre for Crop Improvement, South Africa Phatu W Mashela --- Department of Soil Science, Plant Production and Agricultural Engineering, South Africa Arno Hugo --- Department of Microbial, Biochemical and Food Biotechnology, South AfricaVernonia (Centrapalus pauciflorus) is potentially a new crop that could offer naturally epoxidised industrial oil. The objective of this study was to apply principal component analyses on agronomic traits, seed oil and fatty acid compositions in vernonia to identify the... -
The impact of emigration on population estimates of deep-sea red crab Chaceon maritae off Namibia
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: L. Le RouxUnderwater photography and tag-recapture methods have previously been found to be the most accurate means of assessing the size of the population of Chaceon maritae off southern Africa. However, recent population estimates made by the tag-recapture method appear to be... -
Depth-stratified density estimates and distribution of the Cape hake Merluccius capensis and M. paradoxus off Namibia deduced from survey data, 1990–1999
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: L-M. BurmeisterIn this study demersal survey data for the period 1990–1999 are used to investigate the average distribution of the Cape hake Merluccius capensis and M. paradoxus off Namibia in terms of density and mean length. Further, biomass estimates are compared... -
Identification and classification of vertical chlorophyll patterns in the Benguela upwelling system and Angola-Benguela front using an artificial neural network
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: N. F. Silulwane A. J. Richardson F. A. Shillington B. A. Mitchell-InnesInformation on the vertical chlorophyll structure in the ocean is important for estimating integrated chlorophyll a and primary production from satellite. For this study, vertical chlorophyll profiles from the Benguela upwelling system and the Angola-Benguela front were collected in winter... -
Age and growth of two populations of West Coast steenbras Lithognathus aureti in Namibian waters, based on otolith readings and mark-recapture data
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. A. Holtzhausen C. H. KirchnerAge and growth of West Coast steenbras Lithognathus aureti, sampled from two separate populations (northern and southern) along Namibia's coast, was determined using sectioned otoliths, and the results were validated using mark-recapture data. For both populations, the special three-parameter Von... -
Evaluation of a class of possible simple interim management procedures for the Namibian hake fishery
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: D. S. Butterworth H. F. GeromontDuring 1997, considerable scientific differences arose about the status of the Namibian hake (Merluccius capensis and M. paradoxus) resource, and as to whether the hake Total Allowable Catch (TAC) should be substantially decreased or increased. These differences revolved primarily around... -
Dynamics of the pelagic component of Namibian hake stocks
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: T. Iilende T. Strømme E. JohnsenA study was undertaken to investigate the spatial, diurnal and interannual dynamics of the pelagic component of Namibian hake stocks. Data were derived from trawl surveys conducted on board the R.V. Dr Fridtjof Nansen during the period 1991–1999. In addition... -
Trap selectivity and the effects of altering gear design in the South African rock lobster Jasus lalandii commercial fishery
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: D. S. Schoeman A. C. Cockcroft D. L. Van Zyl P. C. GoosenThe current trap fishery for the West Coast rock lobster Jasus lalandii in South African waters results in the capture, sorting and release of large numbers of undersized animals. Once removed from the water, they are vulnerable to damage from... -
GLM-based standardization of the catch per unit effort series for South African west coast hake, focusing on adjustments for targeting other species
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. P. Glazer D. S. ButterworthCatch per unit effort (cpue) data for the South African west coast Cape hakes Merluccius capensis and M. paradoxus were standardized by applying the Generalized Linear Modelling (GLM) technique. The resulting standardized series indicated that resource abundance declined at a... -
Assessment of the recreational linefishery in selected Eastern Cape estuaries: trends in catches and effort
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: P. Pradervand D. BairdBoat-based creel surveys were used to collect catch and effort data on the shore- and boat-based linefisheries of the Kromme, Gamtoos, Swartkops, Sundays, Bushmans, Kariega, Kowie and Great Fish estuaries in the Eastern Cape, South Africa, from January 1996 to... -
Socio-economic characteristics of gillnet and beach-seine fishers in the Western Cape, South Africa
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: K. Hutchings S. J. Lamberth J. K. TurpieData collected by questionnaire and telephone surveys conducted during 1998 and 1999 are used to describe the socio-economic characteristics of inshore netfishers in the Western Cape. Approximately two-thirds of netfishers work or have worked in other fishing sectors and a... -
Long-distance migration of the rock lobster Palinurus delagoae off South Africa and Moçambique
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. C. GroeneveldLong-distance migration patterns of deep-water rock lobster Palinurus delagoae were investigated using tagrecapture data obtained over a period of 6 years (1995–2000). Of 7 654 animals tagged, 363 (4.7%) were recovered from South African and seven (0.1%) from Moçambican waters... -
How does anybody live in this strange place? A reply to Samantha Vice
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: David Benatar --- Philosophy Department, South Africa c/oSamantha Vice has argued that ‘white’ South Africans are so tainted by the history of racial oppression in their country that they are incapable of attaining a great degree of moral virtue. She recommends that they should live in humility... -
THE LENGTH/MASS RELATIONSHIP AND CONDITION OF LABEO CAPENSIS IN THE CALEDON RIVER
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: D.P. Baird --- Department of Zoology, South Africa S. Fourie --- Department of Zoology, South AfricaThe length mass relationship for a Labeo capensis population is described by the equation M = 0,0134 L2'999 where 2,999 represents a constant the value of which indicates isometric growth. There is very little difference between the length/mass relationship for... -
ASPECTS OF THE BIOLOGY OF TILAPIA RENDALLI IN THE DOORNDRAAI DAM TRANSVAAL
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: G.R. Batchelor --- Division of Nature Conservation, South AfricaScale studies indicated that the annulus is a reliable year mark. A linear relationship existed between scale radius and body growth enabling back calculations to be made. The growth rate of males in Doorndraai Dam were similar to findings in... -
REVERSED VERTICAL MIGRATION OF PLANKTONIC CRUSTACEANS IN A EUTROPHIC LAKE OF HIGH pH
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: A.D. Connell --- ,Two studies of the diel vertical migration of zooplankton in the hyper-eutrophic Hartbeespoort Dam, revealed that both in summer when the lake was anaerobic below 15 m depth, and in winter, when homogeneous, aerobic conditions existed throughout the water column,... -
A LIMNOLOGICAL INVESTIGATION OF LAKE LIAMBEZI, CAPRIVI
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: M.T. Seaman --- , South Africa W.E. Scott --- , South Africa R.D. Walmsley --- , South Africa B. C.W. van der Waal --- , South Africa D.F. Toerien --- , South AfricaA general investigation was carried out on Lake Liambezi to characterize the limnological features of the lake. The lake, 101 km2 in area and situated within the tropics, was found to be shallow and bordered by reed swamps, particularly on... -
RATE OF EROSION IN THE CATCHMENT OF THE BULBERGFONTEIN DAM NEAR REDDERSBURG IN THE ORANGE FREE STATE
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.S. Ie Roux --- Department of Geography, South Africa Z.N. Roos --- Department of Geography, South AfricaThe volume of sediment in the Bulbergfontein Dam was computed after mapping the area of the dam and ascertaining the depth of the sediment by digging and augering. The watershed of the impoundment had been delimited by means of aerial... -
THE DISTRIBUTION AND ECOLOGY OF TWO MULLET SPECIES IN SOME FRESH WATER RIVERS IN THE EASTERN CAPE, SOUTH AFRICA
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: A.H. Bok --- Department of Nature and Environmental Conservation, South AfricaData on the relative abundance, penetration and breeding biology of the freshwater mullet Mugil cephalus and the flathead mullet Mugil cephalus in the freshwater reaches of some Eastern Cape coastal rivers are described. The differences found between the two species... -
AN EXPERIMENTAL EVALUATION OF THE INFLUENCE OF TEMPERATURE ON THE NATURAL RATE OF INCREASE OF DAPHNIA PULEX DE GEER
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.G. van As --- Department of Zoology, South Africa C. Comhrinck --- Department of Zoology, South Africa A.J. Reinecke --- Department of Zoology, South AfricaCohorts of Daphnia pulex from Boskop Dam, an irrigation reservoir near Potchefstroom, Transvaal, were kept at natural food levels under constant temperatures of 10, 15 and 20°C as well as under conditions of temperature with a diurnal fluctuation varying between... -
POSSIBLE ADAPTIVE SIGNIFICANCE OF SEX RATIO AND SEXUAL DIFFERENCES IN SIZE AT MATURITY IN THE ORANGE RIVER LABEO, LABEO CAPENSIS
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: I.G. Gaigher --- Department of Nature and Environmental Conservation, South Africa K. C.D. Hannnan --- Department of Nature and Environmental Conservation, South Africa S.C. Thorne --- Department of Nature and Environmental Conservation, South AfricaLabeo capensis spawns on inundated vegetation during flood periods. Suitable conditions for spawning are of short duration and do not allow time for extended breeding behaviour. The success of fertilisation is therefore probably independent of the size of males. This... -
EFFECT OF CATTLE DIP CONTAINING TOXAPHENE ON THE FAUNA OF A SOUTH AFRICAN RIVER
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: P.M. Brooks --- , South Africa B.D. Gardner --- , South AfricaIn August 1978 the Hluhluwe River, which runs through the Hluhluwe Game Reserve (Natal, South Africa), was polluted by toxaphene from a cattle dip tank. Faunal surveys were conducted to determine the impact of the insecticide on the fish and... -
THE ENUMERATION OF AQUATIC BACTERIA USING DAPI
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: RichardD. Robarts --- , South Africa LynM. Sephton --- , South AfricaA comparison was made between acridine orange (AO) and 4'6-diamidino-2-phenylindole (DAPI), a highly sensitive DNA fluorescing stain, for enumerating aquatic bacteria. When water samples were processed in a darkened room and a final DAPI concentration of 0,05 μg ml −1... -
EFFECT OF CONSTANT TEMPERATURE ON POPULATION DYNAMICS OF BULINUS TROPICUS (KRAUSS) AND LYMNAEA NATALENSIS KRAUSS
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: K.N. de Kock --- Snail Research Unit of the South African Medical Resesrch Council, South Africa J.A. van Eeden --- Snail Research Unit of the South African Medical Resesrch Council, South AfricaLife-tables were compiled for cohorts of the two freshwater snail species Bulinus tropicus (Krauss) and Lymnaea natalensis Krauss at six different constant temperatures from 17 to 32 °C under identical conditions of crowding, feeding and chemical composition of the water... -
INDUCED SPAWNING OF MOGGEL, LABEO UMBRATUS (SMITH) (PISCES: CYPRINIDAE)
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: A.H. Bok --- Cape Department of Nature and Environmental Conservation, South AfricaRipe female Labeo umbratus, captured in Lake Mentz on the Sundays River, were artificially spawned following a series of injections with human chorionic gonadotrophin and homogenized L. umbratue pituitaries. The eggs were stripped and fertiUzed with milt from untreated male... -
FISH SPECIES IN STEIUTONTEIN DAN, TUGELA-VAAI SYSTEM, SOUTH AFRICA
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: W.G. Dörgeloh --- Nature Conservation Branch, Republic of South AfricaTwo alien species and seven indigenous species, including two minnow species, were present in Sterkfontein Dam. Of the larger species, Barbus aeneus and Labco capensis were the dominant in terms of numbers. -
OBSERVATIONS ON THE COEXISTENCE OF FRESH AND SALTWATER INVERTEBRATES IN AN INLAND SALTWORKS
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: S.A. Mitchell --- Unit for Limnology, South Africa M.T. Seaman --- Unit for Limnology, South AfricaThe fauna of three excavated trenches in the floor of the dry salt-pan in the Brandfort district of the Orange Free State was investigated. Two were found to contain typical saline water invertebrate fauna such as Artemia sp. and the... -
BEHAVIOUR OF A RADIO-TAGGED TILAPIA RENDALLI BOULENGER IN LAKE NGEZI, ZIMBABWE
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: CharlesH. Hocutt --- Horn Point Environmental Laboratories, United States of AmericaThe behaviour of a single specimen of Tilapia rendalli Boulenger was observed June through October 1986 in Lake Ngezi, Zimbabwe, by the use of a surgically-implanted radiotransmitter. The individual displayed a distinct homing response on two occasions, returning to the... -
TWENTY-FIVE YEARS OF TRICHOPTERA RESEARCH RELATING TO SOUTHERN AFRICA - A PERSONAL VIEW
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: K. M.F. Scott --- , South AfricaA brief account of earlier work on Trichoptera, reasons for choice of the Order, and resources built up, is followed by the story of twenty-five years of research, from 1963–1988. This includes aims in view, followed by the ‘state of... -
DISTRIBUTION AND DIVERSITY OF MKUZE SWAMP FISHES DURING A SUMMER FLOOD
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: PH Skelton --- , South Africa AK Whitfield --- , South Africa N P E James --- , South AfricaVery little information is available on the fishes of the Mkuze swamps and this paper presents the results of an ichthyofaunal survey conducted in March 1988. The study, which coincided with a major river flood, determined that the fish fauna... -
THE DISTRIBUTION OF WETLANDS IN THE SOUTH-WESTERN CAPE PROVINCE, SOUTH AFRICA
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: M.J. Silberbauer --- Department of Water Affairs and Forestry, South Africa J.M. King --- Freshwater Research Unit, Zoology Department, South AfricaThe hydrological and habitat value of wetlands is beginning to be recognised in South Africa, but only in parts of Natal Province has an effort been made to map wetlands and to record their status over large areas. While the... -
CHANGES IN URBAN RESIDENTIAL LAND IN THE RIETSPRUIT CATCHMENT, SOUTHERN TRANSVAAL
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: M.J. Silberbauer --- Department of Water Affairs, South Africa J. Moolman --- Department of Water Affairs, South AfricaInformal settlements have become an important and rapidly-expanding component of urban development in South Africa. In the Rietspruit catchment, south-west of Johannesburg, average growth rates in urban land cover of up to 2.7 km2 per year (1972–1991) were measured from... -
THE EFFECTS OF TROUT-FARM EFFLUENTS ON BENTHIC INVERTEBRATE COMMUNITY STRUCTURE IN RIVERS IN THE SOUTH-WESTERN CAPE, SOUTH AFRICA
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: C.A. Brown --- Freshwater Research Unit, Zoology Department, J.M. King --- Freshwater Research Unit, Zoology Department,The south-western Cape is currently responsible for 45% of the total annual trout production in South Africa and further expansion of this industry in the region is likely. A preliminary survey of seven trout farms situated on the upper reaches... -
SOME ASPECTS OF THE REPRODUCTION BIOLOGY OF LABEO CAPENSIS (SMITH, 1941) (PISCES, CYPRINIDAE) IN RELATION TO EXPLOITATION AND EXTREME ENVIRONMENTAL CONDITIONS IN HARDAP DAM, NAMIBIA
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: B.J. Van Zyl --- Department of Zoology, Research Unit for Aquatic and Terrestrial Ecosystems, South Africa C.J. Hay --- Department of Zoology, Research Unit for Aquatic and Terrestrial Ecosystems, South Africa G.J. Steyn --- Department of Zoology, Research Unit for Aquatic and Terrestrial Ecosystems, South AfricaThe sex ratio of Labeo capensisdid not differ significantly at a 95% confidence level from a 1♂:1♀, ratio during the study period. The smallest sexually mature male and female L. capensis were 20 cm and 21 cm FL, respectively. Fifty... -
RANGE EXTENSIONS FOR GALAXIAS ZEBRATUS CASTELNAU, 1861 (GALAXIIDAE), KROM AND GAMTOOS RIVER SYSTEMS, EASTERN CAPE.
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: J.A. Cambray --- , South Africa A. Bok --- East Cape Nature Conservation, South Africa R. Smith --- East Cape Nature Conservation, South AfricaThe distribution of the members of the Southern Hemisphere family Galaxiidae has intrigued biogeographers for some time. They are present in South America, Africa, Australia and New Zealand. There is only one species in Africa, the Cape galaxias (Galaxiaszebratus). Galaxias... -
SOME OBSERVATIONS ON FISH MIGRATIONS IN CAPRIVI, NAMIBIA
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: B. C.W. van der Waal --- , South AfricaLongitudinal and lateral migrations of freshwater fish were observed in 63 (83%) of the fish of the Upper Zambezi in the Caprivi region, Namibia. The results of 20 surveys showed that longitudinal upstream migrations were undertaken by most small cyprinids,... -
A REVIEW OF THE MACROBENTHIC FAUNA OF THE MHLATHUZE ESTUARY: SETTING THE ECOLOGICAL RESERVE
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: C. F. Mackay --- , , South Africa D. P. Cyrus --- , , South AfricaThis paper reviews historical and current ecological information on macrobenthos from the Mhlathuze Estuary before and after development of the Richards Bay Harbour. The fauna is described in terms of the potential influence of a change in freshwater inflow to... -
A REVIEW OF THE AQUATIC AVIFAUNA OF THE MHLATHUZE ESTUARY
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: D. P. Cyrus --- , , South AfricaThis paper is the first published review of the aquatic avifauna of the Mhlathuze Estuary. It also uses a regional approach in order to determine the potential for certain hitherto unrecorded species to occur there. The study shows that there... -
Correlates of stocking rate and overgrazing in the Leliefontein Communal Reserve, central Namaqualand
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: S.W. Todd M.T. HoffmanWe investigate the correlates of stocking rate in the Leliefontein communal reserve and attempt to provide a mechanistic explanation of the controlling factors. We further speculate on how high stocking rates are maintained in relation to the current state of... -
The effects of topo-edaphic variables and cultivation on the woody vegetation of Weenen Nature Reserve, KwaZulu-Natal
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: L Breebaart TG O'Connor JC Hughes CD Morris IA RushworthThe soil types and woody vegetation of Weenen Nature Reserve (WNR), KwaZulu-Natal, were described. Mispah, overlying shale, and Shortlands, overlying dolerite were the most common of 18 the soil forms encountered. Six vegetation types were identified by TWINS PAN which... -
The influence of tree density on the grass layer of three semi-arid savanna types of southern Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: CGF Richter HA Snyman GN SmitThe influence of bush density on the grass component of the herbaceous layer was investigated for three savanna veld types (Molopo Thornveld, Mixed Vaalbos Thornveld, and the Eastern Grass and Bushveld) in the Northern Cape and North-West Province of South... -
A study of animal production under different grazing regimes in the False Upper Karoo at Grootfontein
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: PCV du ToitThree systems of animal production on the fragile Karoo veld, i.e. multi-paddock rotational grazing, pauci-paddock rotational grazing and continuous grazing were studied. Of these systems, multi-paddock rotational grazing gave the best results with continuous stocking resulting in the worst. All... -
The relation between canopy spread cover and the aboveground available phytomass of Nama Karoo subshrubs and grasses
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: PCV du ToitThe canopy spread cover of Karoo bushes and grasses in the Nama Karoo was measured and related to the aboveground phytomass available to the grazing animal. A correlation coefficient of r = 0.7456, calculated for Karoo bushes, indicates that this... -
Monitoring in a complex world — seeking slow variables, a scaled focus, and speedier learning
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: T.J.P. Lynam M. Stafford SmithRecent developments from complex systems theorists provide new insights into our understanding and, hence, monitoring of rangelands. Designing monitoring systems around the slow variables should lead to the generation of information that could greatly improve decision making in an adaptive... -
Landscape function analysis: a system for monitoring rangeland function
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: David Tongway Norman HindleyLandscape Function Analysis (LFA) is a monitoring procedure that uses quickly determined field indicators to assess the functional status of rangelands. As such, it complements existing procedures that assess condition. It comprises three modules — a conceptual framework, a field... -
Monitoring to detect change on rangelands: physical, social and economic/policy drivers
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J.R. Brown K.M. HavstadAgents that can cause important changes in properties of biological communities are referred to as drivers. Drivers may be classed as physical, social and economic/policy, referring to their origin and mode of action. Physical drivers include environmental (weather, climate) and... -
Remote sensing and change detection in rangelands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: AnthonyR. Palmer Alex FortescueDuring the 20 th century, we have witnessed an improvement in the quality of imagery available for rangeland auditing, from the earliest mono-chromatic aerial photographs, followed by the first infra-red images, to the abundance of high resolution, multi-spectral imagery currently... -
The challenge of integrated rangeland monitoring: synthesis address
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: David WesternThe need to balance biodiversity conservation with sustainable development, though widely agreed upon, is elusive in practice. Human societies are increasingly disconnected from the ecosystems which support them. The loosening connection and growing scientific acceptance that ecosystems are complex, dynamic,... -
Climate variability and impacts on east African livestock herders: the Maasai of Ngorongoro Conservation Area, Tanzania
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: KathleenA Galvin PhilipK Thornton RandallB Boone Jennifer SunderlandEast African pastoral adaptation and vulnerability to climate variability and climate change is assessed, using data from decisionmaking processes and ecological data of the Maasai of Ngorongoro Conservation Area as an example. The paper uses integrated modeling, linking PHEWS, a... -
Feeding characteristics of sheep (Ovis aries) and Grant's gazelles (Gazella granti) on Kapiti ranch, Kenya
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JM Kilonzo WN Ekaya RN KinuthiaA study was conducted to determine the dietary characteristics of sheep and Grant's gazelles on Kapiti Ranch, Kenya. The botanical composition of the diet was determined using the faecal microhistological technique. Plant species in the diets were categorised into grass,... -
Kudu foraging behaviour: influenced by animal density?
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: C van der WaalIn deciduous savanna a marked decline in browse availability characterises the late dry season and apparently regulates populations of large browser species such as kudu. The dry season utilisation patterns of two woody species, Acacia tortilis and Boscia albitrunca, in... -
Genetic variation between ecotypic populations of Chloris roxburghiana grass detected through RAPD analysis
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: W Ngoyawu Mnene J Hanson WN Ekaya JI Kinyamario P Mweki G Lall JW Stuth RH JamnadassChloris roxburghiana is an important rangeland grass in Kenya. In some areas it has disappeared due to land degradation resulting from overgrazing and drought. Efforts to re-introduce the grass through re-seeding using seeds from research stations have had little success... -
Factors affecting in sacco dietary degradation by Ankole cattle grazing natural range pastures in Uganda
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: S Okello EN Sabiiti HJ SchwartzThe in sacco disappearance of dietary dry matter after 48h of incubation in the rumen (DMd) was examined for its relationship with seasonal changes in neutral detergent fibre (NDFd), crude protein (CPd), cellulose (CELL), hemicellulose (HCELL), acid detergent lignin (ADLd)... -
Brushpiles and dung as rehabilitation patches: effect on soil resources in degraded succulent thicket, Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: WB Todkill GIH Kerley EE CampbellA substantial portion of the Thicket Biome in the Eastern Cape has been transformed by overgrazing. An experimental rehabilitation study of degraded succulent thicket was initiated to determine whether increasing the patchiness on the landscape would result in an increase... -
Effects of season and frequency of burning on soils and landscape functioning in a moist montane grassland
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: AD Manson D Jewitt AD ShortThe effects of burning on soil properties and landscape function were investigated in a long-term experiment comparing different burning strategies in a moist montane grassland. Total C, total N, total S, bulk density, plant-available nutrients, and soil acidity were determined... -
Habitat selection by large herbivores in relation to fire at the Bontebok National Park (1974–2009): the effects of management changes
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: T Kraaij --- Scientific Services, South Africa PA Novellie --- Conservation Services Division, PretoriaThe Bontebok National Park has long been faced with the dilemma of reconciling the need for short-interval fires, which promote grazing for bontebok, with that for longer-interval fires to maintain plant diversity. We explored habitat selection by various large herbivores... -
Dry matter and nonstructural carbohydrate content as quality parameters in a Lolium multiflorum breeding programme
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J.P. Marais --- , Republic of South Africa M. de Figueiredo --- , Republic of South Africa D.C.W. Goodenough --- Agricultural Research Council, Republic of South AfricaA Lolium multiflorum cv. Midmar pasture and ninety individual plants (both Italian and Westerwolds types), from 15 different Lolium multiflorum cultivars in a spaced‐plant trial, were assessed for total nonstructural carbohydrate (TNC) content, TNC yield, dry matter (DM) content, DM... -
Development of monitoring procedures for the herbaceous layer on the Northeastern Transvaal escarpment
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M. Stalmans --- Resource Ecology Group, Department of Botany, Republic of South Africa M.T. Mentis --- Resource Ecology Group, Department of Botany, Republic of South AfricaA step‐wise approach was followed towards the design of a monitoring system for the herbaceous layer on the escarpment of the Drakensberg mountains in the Transvaal, South Africa. The parameter of concern was proportional species composition. In a first phase,... -
Factors affecting the voluntary feed intake of sheep grazing Pennisetum clandestinum (kikuyu) pastures: Observations from forage analysis
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J.P. Henaar --- Agricultural Research Council, Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South Africa J.B.J. van Ryssen --- Department of Animal & Poultry Science, Republic of South AfricaSheep were used in two investigations to study factors which could limit voluntary intake of Pennisetum clandestinum (kikuyu) pasture. Possible reasons for the low intakes were found in the high soluble nitrogen and nitrate content of the pasture, its high... -
Factors affecting the voluntary feed intakes of sheep grazing Pennisetum clandestinum (kikuyu) pastures: Observations in the animal
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J.P. Pienaar --- Agricultural Research Council, Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South Africa J.B.J. van Ryssen --- Department of Animal and Poultry Science, Republic of South Africa J.P. Swiegers --- , Republic of South AfricaTwo experiments designed to establish possible reasons for the often‐observed low voluntary feed intake of animals grazing kikuyu pastures were conducted at two widely differing locations. Low digestibility and low rate of digestion limited feed intake only when sheep were... -
The relation between herbivore density and relative resource density at the landscape level: Kudu in semi‐arid savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: C. Fabricius --- , Republic of South AfricaEcological theory can help range scientists to understand the determinants of ecological animal density or, in range management terms, ‘carrying capacity’. The relation between the relative density of resources and herbivore density is illustrated by regressions of the ecological density... -
Defoliation patterns of three grass species in sourveld grazed by cattle and sheep
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M.B. Hardy --- , Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South Africa C.D. Morris --- , Republic of South AfricaA point‐based technique was used to determine the effects of grazing, due to stocking rate and cattle‐to‐sheep ratio, on the defoliation pattern of three grass species. At each of 100 systematically located points per grazing treatment the nearest plant of... -
An analysis of a stocking rate trial at Chobela, southern Mozambique
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J.R. Timberlake --- , MozambiqueAn analysis is presented of data from a stocking rate trial carried out in 1962–1963 at Chobela Livestock Station in southern Mozambique. The data set had limitations but an attempt was made to draw any conclusions possible for management. Data... -
Diet selection by sheep and goats in the Arid Karoo
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.C.V. du Toit --- Department of Agriculture, Republic of South Africa C.D. Blom --- Department of Agriculture, Republic of South Africa W.F. Immelman --- Department of Agriculture, Republic of South AfricaThe diet selected by Afrino, Dorper and Merino sheep, and Angora goats was studied in the Arid Karoo at Carnarvon. The diets selected by these small stock species and breeds was established through breed by breed comparisons, with a view... -
Diet selection by sheep and goats in the Noorsveld
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.C.V. du Toit --- Department of Agriculture, Republic of South Africa C.D. Blom --- Department of Agriculture, Republic of South AfricaThe diet selection of Angora and Boer goats, and Dorper and Merino sheep was studied in the Noorsveld to ascertain differences in their food preferences. This information will facilitate the identification of possible goat and sheep combinations to improve the... -
The grazing index method of range condition assessment
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.C.V. du Toit --- Department of Agriculture, Republic of South AfricaOwing to the difficulty of examining succession theory in the Karoo, it is suggested the ecological index method (EIM), be replaced by the grazing index method (GIM), through the introduction of grazing index values (GIV) for Karoo plant species. The... -
Effect of grazing frequency and intensity on Lolium perenne L. pastures under subtropical conditions: Herbage quality
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: F.R. Mckenzie --- Department of Grassland Science, Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South AfricaThe cellulase dry matter disappearance (CDMD) and herbage nitrogen (N) of Lolium perenne (perennial ryegrass) were evaluated for pastures grown under subtropical conditions for two years, under five combinations of grazing frequency and intensity, each applied in a rotational grazing... -
Rates of wood and dung disintegration in arid South African rangelands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: S.J. Milton --- FitzPatrick Institute, Republic of Soutli Africa W.R.J. Dean --- FitzPatrick Institute, Republic of Soutli AfricaDead shrubs lying on the soil surface in an arid shrubland in the southern Karoo have half‐lives of 9 to 18 years depending on wood density which varies among species. Dung pellets of sheep and springbok can remain intact on... -
Factors influencing forage preference of bushbuck and boer goats for Subtropical Thicket plants
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: S.L. Haschick --- Terrestrial Ecology Research Unit, Department of Zoology, Republic of South Africa G.I.H. Kerley --- Terrestrial Ecology Research Unit, Department of Zoology, Republic of South AfricaDietary preference of bushbuck (Tragelaphus scriptus) and boer goats (Capra hircus) was determined for sixteen Subtropical Thicket plant species using cafeteria style selection trials. Principal components analysis was used to identify major axes of variation in the chemical contents of... -
Calculating stocking rates for game ranches: Substitution ratios for use in the Mopani Veld
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: B. Dekker --- Northern Province Department of Agriculture, Republic of South AfricaDetermination of carrying capacity for mixed‐ or multi‐species grazing systems is complex. Commonly, each species is compared to the standard large stock unit (LSU) used in conventional agriculture. However, this approach does not allow for ecological separation, and thus overlooks... -
Description of a method for assessing veld condition in the Karoo
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.C.V. du Toit --- , Republic of South AfricaIn the past, veld condition in the Karoo was assessed according to the ecological index method. This has recently been replaced by the grazing‐index method. The principles governing the method of botanical survey remain the same, but this methodology has... -
Modification of soil nutrients and micro‐climate by tree crowns in a semi‐arid rangeland of south‐western Zimbabwe
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: C.S. Moyo --- , Zimbabwe P.G.H. Frost --- Institute of Environmental Studies, Zimbabwe B.M. Campbell --- Institute of Environmental Studies, ZimbabweTree crowns in semi‐arid areas have often been found to create micro‐habitats of improved soil physical and nutrient status and reduced evapotranspiration. These encourage the growth of mesic, palatable and high yielding perennial grasses in otherwise arid environments. A two‐year... -
Research note: Evaluation of the reliability of local farmer knowledge in Namaqualand, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: H.H. Hendricks --- Botany Department, Republic of South Africa F. van der Heyden --- , Republic of South AfricaLocal farmer knowledge of species distribution patterns and plant palatability in Namaqualand, South Africa, was assessed using Participatory Rural Appraisal techniques. These findings were compared with the results obtained using phytosociological techniques (species distribution), and with palatability indices published in... -
Perspective article: The evolving use of stocking rate indices currently based on animal number and type in semi‐arid heterogeneous landscapes and complex land‐use systems
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M.J.S. Peel --- , Republic of South Africa H. Biggs --- , Republic of South Africa P.J.K. Zacharias --- Department of Range and Forage Resources, Republic of South AfricaMethods of determining stocking rate based on metabolic mass, animal type and biomass are reviewed in the context of equilibrial/disequilibrial paradigms. In South Africa, the calculation of ‘carrying capacity’ is based on conversion of animal species to metabolic mass equivalents... -
Antioxidant activity of selected plants of the Great Fish River Reserve,Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: AH Kgopa --- Department of Biochemistry, Microbiology and Biotechnology, South Africa SI Bulani --- Department of Biochemistry, Microbiology and Biotechnology, South Africa BS Wilhelmi --- Department of Biochemistry, Microbiology and Biotechnology, South Africa JM Brand --- Department of Biochemistry, Microbiology and Biotechnology, South AfricaThe Great Fish River Reserve (GFRR), in the Eastern Cape, has proved to be particularly suitable for the black rhinoceros that have been introduced over the past 20 years. In captivity, these animals often suffer from a number of disease... -
Landscape-level differences in fire regime between block and patch-mosaicburning strategies in Mkuzi Game Reserve, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: CM Mulqueeny --- , South Africa PS Goodman --- , South Africa TG O'Connor --- School of Animal, Plant and Environmental Sciences, South AfricaPatch-mosaic burning (PMB) is commonly advocated to create a mosaic of fire regimes that is believed to be more beneficial for maintaining biodiversity than the relatively homogeneous environment produced by block burning. This premise was examined for the 23 651... -
Climate change perceptions, drought responses and views on carbon farming amongst commercial livestock and game farmers in the semiarid Great Fish River Valley, Eastern Cape province, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: CL Clarke --- Department of Environmental Science, South Africa SE Shackleton --- Department of Environmental Science, South Africa M Powell --- Department of Environmental Science, South AfricaThere is increasing evidence that climate change will be one of the primary challenges facing future development and agriculture. Farmers, whether crop or livestock farmers, will be faced with tradeoffs and constraints as climate change exposes them to greater risk... -
Veld fire reporting and mapping techniques in the Kruger National Park, South Africa, from 1941 to 2011
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: N Govender --- , South Africa O Mutanga --- Department of Geography, South Africa D Ntsala --- , South AfricaFire has long been regarded as a major determinant of ecosystem structure and function within African savannas. Improvements in fire detection, mapping and recordings of fire activity over the past few years have made it possible to provide more reliable... -
A novel method for estimating tree dimensions and calculating canopy volume using digital photography
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: AS Barrett --- Applied Behavioural Ecology and Ecosystems Research Unit, South Africa LR Brown --- Applied Behavioural Ecology and Ecosystems Research Unit, South AfricaStudies on plant phenology and browse capacity require effective methods to rapidly quantify plant dimensions such as tree height, height of maximum canopy diameter, height of first leaves, maximum canopy diameter, and diameter of trunk(s) at height of first leaves... -
Post-wildfire regeneration of rangeland productivity and functionality – observations across three semi-arid vegetation types in South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Johannes AD Breedt --- School of Biological Sciences, South Africa Niels Dreber --- School of Biological Sciences, South Africa Klaus Kellner --- School of Biological Sciences, South AfricaWildfires can have significant impacts on rangeland productivity and functionality causing substantial economic losses to affected farmers. In August 2011, such wildfires swept through the North West province of South Africa, destroying large areas of grazing and farm infrastructure. There... -
Themeda triandra: a keystone grass species
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Hennie A Snyman --- Animal, Wildlife and Grassland Sciences, South Africa Lachlan J Ingram --- Plant Breeding Institute, Faculty of Agriculture and Environment, Australia Kevin P Kirkman --- Grassland Science, South AfricaThemeda triandra is a perennial tussock grass endemic to Africa, Australia and Asia. Within these regions it is found across a broad range of climates, geological substrates and ecosystems. Because it is widespread across these areas it has great economic... -
Perceptions of climate change and barriers to adaptation amongst commonage and commercial livestock farmers in the semi-arid Eastern Cape Karoo
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Claudette Muller --- Department of Environmental Science, South Africa Sheona E Shackleton --- Department of Environmental Science, South AfricaClimate change is expected to adversely affect agriculture in South Africa. A rise in variable and unfavourable conditions is likely to surpass the limits of current coping mechanisms of farmers, compelling them to implement more resilient adaptive measures to decrease... -
Topographical units and soil types prove more efficient for vegetation sample site placement than Land Type units in semi-arid savanna, North West province, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Francois Viljoen --- Department of Nature Conservation, South Africa Kerryn Bullock --- Department of Nature Conservation, South Africa Mike Panagos --- Department of Nature Conservation, South Africa Willem Myburgh --- Department of Nature Conservation, South AfricaLand Type mapping units were used to stratify the Heritage Park corridor, in the North West province, South Africa, into eight Land Type units prior to placing 109 floristic sample sites. At each site, species composition and relative frequency data... -
Savanna browse production. 1: Determinants and measurement
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Caryn A Penderis --- School of Life Sciences, South Africa Kevin P Kirkman --- Grassland Science, South AfricaWith the rapid expansion of wildlife ranching and conservation in South African savannas and the resultant increase in multi-species grazing and browsing systems, information on browse production potential is essential for determination of carrying capacity. This study, conducted on three... -
Savanna browse production. 2: Prediction
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Caryn A Penderis --- School of Life Sciences, South Africa Kevin P Kirkman --- Grassland Science, South AfricaBrowsing herbivores are generally highly selective feeders, selecting for new shoots and young plant material. Determinations of browser carrying capacity are then greatly inflated when based on available browse biomass estimates. Our study was initiated with the aim of modelling... -
Rate and pattern of bush encroachment in Eastern Cape savanna and grassland
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: T.G. O'Connor V.R.T. CrowThe rate and pattern of bush encroachment in the grasslands and savannas of the Kei Road-Komga region of the Eastern Cape were quantified by analysis of nine sets of aerial photographs taken between 1937 and 1986. Woody cover increased from... -
Quantification of the soil-water balance under different veld condition classes in a semi-arid climate
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: H.A. SnymanThe monthly herbage production, water-use efficiency (WUE: above-ground phytomass production per unit of evapotranspiration), surface runoff and soil loss were determined on grassland in three different ecological conditions, viz. poor, moderate and good, over a four year (1995/1996 to 1998/1999)... -
The present status of Anaphes nitens (Hymenoptera: Mymaridae), an egg parasitoid of the Eucalyptus snout beetle Gonipterus scutellatus, in the Western Cape Province of South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: G. D. TribeThe egg parasitoid Anaphes nitens (Girault) was successfully introduced into South Africa in 1926 to control the Eucalyptus snout beetle, Gonipterus scutellatus Gyllenhal. However, outbreaks of the beetle on the Highveld in the 1980s questioned the efficacy of the parasitoid... -
An assessment of factors affecting early survival and growth of Pinus patula and Pinus elliottii in the summer rainfall region of southern Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: C. A. Rolando K. M. LittleHigh initial mortality of pine seedlings planted in commercial timber plantations in the summer rainfall region of southern Africa has motivated research into possible causes. The objectives of this study were to assess whether survival and initial growth of Pinus... -
The effect of planting density on the wood quality of South African-grown Eucalyptus grandis
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: F.S. MalanThis paper presents the results of a wood property and sawn board quality study performed on disc samples and sawlogs taken from a 23-year-old Eucalyptus grandis Nelder 1a spacing trial at J.D.M. Keet plantation near Tzaneen. Ten trees from each... -
Propagating Osyris lanceolata (African sandalwood) through air layering: Its potential and limitation in Tanzania
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: P.L. Mwang'ingo Z. Teklehaimanot L.L. Lulandala S.M. MaliondoPropagation of African sandalwood (Osyris lanceolata) by air layering (marcotting) was investigated at Sao Hill, Tanzania, aiming at providing an alternative propagation technique to the use of seeds or cuttings that germinate or root poorly. Air layers were initiated on... -
Phenotypic variation in fruit, seed and seedling traits of nine Uapaca kirkiana provenances found in Malawi
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: W.F. Mwase Å Bjørnstad Y.M. Ntupanyama M.B. Kwapata J.M. BokosiUapaca kirkiana is one of the priority indigenous fruit tree species for domestication in southern Africa. Natural populations of U. kirkiana are declining due to deforestation, forest fragmentation and wildfires. Knowledge of genetic variation is prerequisite for development of conservation... -
Technical and institutional capacity in local organisations to manage decentralised forest resources in Uganda
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: N. Turyahabwe C.J. Geldenhuys S. Watts A.Y. BananaUganda is one of the sub-Saharan African countries that has devolved the management of forest resources. Meaningful devolution, however, requires that local governments and other community organizations should have capacity in terms of adequate and competent human resources, finance, information,... -
Growth modelling of Pinus roxburghii in South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: E.R. Falkenhagen --- , South AfricaThe growth in diameter at breast height, height and tree volume and plot density were studied in an unreplicated spacing trial of Pinus roxburghii at Weza, South Africa. -
Kraft Pulping Properties of Acacia mearnsii and Eucalyptus grandis Grown in Zimbabwe
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: A. Muneri --- , AustraliaPulpwood samples from 8-year old Acacia mearnsii and Eucalyptus grandis plantations grown in Zimbabwe were evaluated for kraft pulping, bleaching and papermaking properties. The possibility of co-pulping the two species was also investigated. -
Long-Term Antelope Population Monitoring in Southern Cape Forests
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Armin H.W. Seydack --- Department of Water Affairs and Forestry, Republic of South Africa Johan Huisamen --- Department of Water Affairs and Forestry, Republic of South Africa Rynhard Kok --- Department of Water Affairs and Forestry, Republic of South AfricaThe results of population monitoring of two forest antelope species in the Knysna forests (South Africa), the bushbuck (Tragelaphus scriptus) and blue duiker (Philantomba monticola) are presented. Most monitoring was done by faecal pellet group counting, but some track counts,... -
Alternative Taper Curve Estimation Methods for Eucalyptus cloeziana (F. Muell.)
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: K. P.A. Eerikäinen --- Faculty of Forestry, Finland D. Mabvurira --- , Zimbabwe J. Saramäki --- ,Three types of taper estimation methods for Eucalyptus cloeziana were applied and compared by using Zambian and Zimbabwean plantation data. The methods are: (1) Schumacher's taper equation, (2) diameter prediction method and (3) polynomial taper curve. The Schumacher's taper equation... -
Nutrient levels of three Eucalyptus species/provenances, measured over four seasons in a trial along the sandy, dry, Cape West Coast of South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: F. Ellis --- Faculty of Forestry, A. van Laar --- Faculty of Forestry,Foliage nutrient content of 3 to 6-year old Eucalyptus species/provenances (E. camaldulensis, E. globulus and E. grandis x E. tereticornis) were analysed for eleven elements over a four-year period. The trial was planted on three sites, adjacent to each other,... -
Remote sensing from space—present and future applications in forestry, nature conservation and landscape management
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Christoph Kätsch --- Faculty of Forestry, Fachhochschule Hildesheim/Holzminden, Germany Holger Vogt --- Dipl. Forstwirt Holger Vogt, Faculty of Forestry, South AfricaPast studies have suggested that sound knowledge about the reflectance characteristics of objects could be of great value in understanding the physical, chemical, and the spatial properties of features on our planet. These characteristics can be assessed remotely, and the... -
A Comparison of the kraft pulp properties of P. elliottii and the P. elliottii x P. caribaea var. hondurensis hybrid grown in Queensland, Australia
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: T.K. Stanger --- Shaw Research Centre, South Africa M. J.P. Shaw --- Shaw Research Centre, South Africa R. Braunstein --- , South Africa D.G. Nikles --- , AustraliaThe interspecific hybrid between P. elliottii var. elliottii and P. caribaea var. hondurensis has recently been accepted for planting operationally as an alternative to P. elliottii by Sappi in South Africa. Some concerns have been expressed as to the suitability... -
Staining roots to determine root growth potential of Pinus taeda
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Janusz Zwolinski --- Forestry Programme, South Africa CurtM. Peterson --- Department of Botany and Microbiology, USA Colin Dyer --- , South AfricaRoot growth potential (RGP) consists of two components: elongation of existing roots and initiation of new roots. Currently, RGP is determined on planting stock from which any “white roots” present at the start of the test are removed. This study... -
Targeted spot vegetation management in Pinus radiata and P. elliottii plantations, Tsitsikamma, South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: S.F. Gous --- , New ZealandTowards the end of 1995, granular herbicides were introduced in South African forestry. Traditionally, weed control was done by manual slashing or herbicides were applied by knapsack sprayer. Targeted, spot herbicide application is more environmentally friendly, less expensive and easier... -
Species composition and phytogeographical significance of an afromontane forest fragment in the Mpumalanga province, South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: T.L. Morgenthal --- , South Africa S.S. Cilliers --- , South AfricaA floristic survey of an afromontane forest fragment, Pedlar's Bush, was done as part of an effort to proclaim this forest as a national heritage site. A checklist of 245 plant taxa has been compiled for Pedlar's Bush. The phytogeographical... -
Responsible Alcoholic Beverages Sales and Services Training Intervention in Cape Town: A Pilot Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council & University of Limpopo, Shandir Ramlagan --- Human Sciences Research Council, Louis Gliksman --- Center for Addiction & Mental Health,The aim of this study was to pilot a responsible beverage service intervention in order to reduce alcohol-impaired road use. The sample included 20 shebeens including 10 licensed and 10 unlicensed establishments chosen from a list of alcohol serving establishments... -
Understanding Islamic Perspective of Mental Health and Psychotherapy
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yasmin Nilofer Farooqi --- University of the Punjab,This paper is an attempt to provide foundational information about Islamic perspective of mental health and psychotherapy. It further highlights the historical contribution of Muslim philosophers and physicians to the field of psychotherapy. In the aftermath of the 9/11 and... -
Can Professionals Offering Support to Vulnerable Children in Kenya Benefit from Brief Play Therapy Training?
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kathryn Frances Hunt --- Durham University, United KingdomThis paper evaluates the perceived benefit to a group of thirty caring professionals of a brief training in Child-centred play therapy. Play therapy enables a child to create fictional worlds and in this way make sense of the real world... -
A Cognitive-Behavioural Treatment Programme for Conduct Disorder: The Case of Tumeleng
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ian Smith --- Psychology Department, South AfricaThis article presents a case study of a teenager with conduct disorder (CD) using a cognitive-behavioural treatment programme for anger and aggression. Unique features of the case included comorbid expressive language disorder and a history of multiple traumatic brain injuries,... -
Still Photography Provides Data for Community-Based Initiatives
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mohamed Seedat --- UNISA Institute for Social and Health Sciences, Loni Baadjies Ashley van Niekerk Thoko MdakaWe use community psychology's accent on methodological pluralism and giving voice to the marginalised as a platform to critically examine the utility and outcome of photography as a data collection and community engagement method. Accordingly we focus on two community... -
Cultural and Religious Values: A Cross-Cultural Study In Austria, South Africa and Egypt
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Walter Renner --- University of Klagenfurt, Kathleen Myambo --- American University in Cairo, Karl Peltzer --- University of Limpopo,This article compares religious values found on the basis of the lexical approach in three cultures. Lists of human values in Austria (German), South Africa (Northern Sotho) and Egypt (Arabic) were compiled. These terms were rated by 456, 400 and... -
Exploring the Application of Actuarial Criminology in Southern Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- University of South Africa, Anastasios Ladikos --- University of South Africa,In response to the declared intent of the White Paper on Corrections (Department of Corrections, 2005) to transform prisons into needs-based centers of reform, the Self-appraisal Questionnaire (SAQ) was used to explore its potential as a reliable and valid prediction... -
Dimensions of Social Well-Being in a Motor Manufacturing Organisation in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Melanie de Jager --- University of South Africa, Sanet Coetzee --- University of South Africa, Deléne Visser --- University of South Africa,The study examined the psychometric properties of the 15-item version of the Social Well-being Scale (SWBS-15: Keyes, 1998) for a South African sample with diversity in culture. The SWBS-15 and a biographical questionnaire were administered to employees in a motor... -
In Pursuit of Happiness: How Some Young South African Children Construct Happiness
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Irma Eloff --- University of Pretoria,The purpose of the study was to explore the ways in which young South African children construct the notion of happiness. The small-scale study was conducted with children (n=42) in middle childhood between the ages of 6 and 13 years... -
Development of a Post-Modern Career Interest Questionnaire for South-African School Settings
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacobus G. Maree --- University of Pretoria, Jaqui Sommerville --- University of Pretoria,The study explored the potential value and viability of an interest narrative (questionnaire) in terms of its psychometric properties and by comparing it with a commonly administered (positivist) career interest questionnaire. Participants were 159 boys and 183 girls, mean ages... -
Visual Participatory Approaches to HIV and AIDS Research as Intervention in a Rural Community Setting
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Naydene de Lange --- University of KwaZulu-Natal,This article presents visual participatory approaches as a way to address HIV and AIDS in a rural South African setting. The article suggests that visual imaging has merit for supporting HIV and AIDS intervention with learners, teachers, community health care... -
Exploring the Reliability and Validity of the DAT-K in Grade 11 Learners in a Historically Disadvantaged School in Johannesburg, South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sumaya Laher --- University of the Witswatersrand, South Africa M. Mokone --- University of the Witswatersrand, South AfricaThis study explored the reliability and validity of the Differential Aptitude Test—Form K (DAT-K) in a sample of 75 learners (mean age = 17.1 years, SD = 1.13) from a previously disadvantaged school in Johannesburg. Adequate reliability coefficients were obtained... -
The Assessment and Treatment of Post-Abortion Syndrome: A Systematic Case Study From Southern Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Melissa Boulind --- Rhodes University, David Edwards --- Rhodes University,This article reports a clinical case study of “Grace”, a black Zimbabwean woman with post-abortion syndrome (PAS), a form of post-traumatic stress disorder precipitated by aborting an unwanted pregnancy. She was treated by a middle class white South African trainee... -
Cancer Patients' Illness Experiences During a Group Intervention
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mariska Venter --- North-West University, Chris Venter --- North-West University, Karel Botha --- North-West University, Munro Strydom --- Stikland Hospital,The study used secondary data analysis to explore cancer patients' illness experiences during a listening group intervention. Participants were 12 patients (age range 22 to 62 years in age; males = 4; females = 8). Data were analysed using qualitative... -
A Parent's Experience of the Couple Relationship After Child Bereavement in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jeanette Maritz --- University of Johannesburg, Marie Poggenpoel --- University of Johannesburg, Chris Myburgh --- University of Johannesburg,The objective of this qualitative, exploratory, descriptive and contextual research was to explore and describe a parent's experience of the couple relationship after child bereavement in South Africa. Participants were nine parents as well as the researcher who lost children... -
Forgiveness and the Well-Being of Members of the South African National Defence Force (SANDF): A Process for Discussion
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gideon A.J. van Dyk --- Stellenbosch University,Africa is a continent of conflict, violence and war. South Africa, with a recent history of apartheid and current high percentage of crime is no exception. Members of the South African National Defence Force (SANDF) take part in peacekeeping operations... -
Play Therapy as an Intervention Against Sexual Violence in Botswana
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Munita Dunn --- University of South Africa, Morekwe Selemogwe --- University of Botswana,The study explored the experience of social workers (n=9, consisting of females only, age range 25 to 40) and lay counsellors (n=9, consisting of 2 males and 7 females, age range 20 to 30) in Botswana. Participants had brief training... -
Rape and Trauma: A Case Study of a Journey of Recovery
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Maria Papaikonomou --- University of South Africa,This case study presents the results of a counselling intervention with a rape survivor. The woman was twenty-nine years old at the time of the violation. The objective of this study was to explore the dynamics which the woman engaged... -
Facilitation of Spatial Orientation Among Adolescents from a Disadvantaged Background
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Chris Myburgh --- University of Johannesburg, Marie Poggenpoel --- University of Johannesburg, Glen van der Westhuizen --- University of Johannesburg,The study investigated structural and shape recognition in two to three dimensions by adolescents from a historically disadvantaged neighbourhood. Data on the spatial orientation of grade eight learners in a specific school were collected using specifically adjusted and developed tests... -
Hazardous Alcohol Use among Persons Living with Human Immunodeficiency Virus Infection in the Eastern Cape, South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council & University of the Free State, Nancy Phaswana-Mafuya --- Human Sciences Research Council & University of the Western Cape, George Petros --- Human Sciences Research Council, South AfricaThe study assessed the prevalence of hazardous alcohol use among people living with HIV (PLHIV) and its correlates with socio-economic characteristics, disease variables and ART adherence in South Africa. The sample included 607 PLHIV (males =475, females =132; age range... -
The Description and Evaluation of an African Breath Psychotherapeutic Workshop
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Stephen D. Edwards --- University of Zululand,An African breath psychotherapeutic workshop is described and evaluated with a small group of participants (students =9, males = 3, females =6, age range =24 to 59 years, mean age 40.3 years) all of whom were professionally registered psychologists. There... -
Relational Psychoanalysis Potential Usefulness with Black South African Clients
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Zelda G. Knight --- University of Johannesburg,The aim of this article is to suggest that relational psychoanalysis may be a useful approach for working with clients from indigenous African cultures. In particular, the article considers the utility of relational psychoanalysis to understanding and enacting the therapeutic... -
A Cross-Cultural Exploration: Body Image in Older Black and White Women in the Workplace
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Helena Hewat --- University of Johannesburg, South Africa Marlene Arndt --- University of Johannesburg, South AfricaThis study investigated body image attitudes in a non-clinical sample of black and white older professional women in the workplace in South Africa. Participants were 125 professional women (white woman n=76 and black women n = 49). They completed the... -
How Children Experience the Assets that Support their Learning
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Irma Eloff --- University of Pretoria, Ilze Ferreira --- University of Pretoria, Jacobus G. Maree --- University of Pretoria,The study, on which this article is based, explored the ways in which primary school children in an urban (city centre) setting experience the assets and resources that support their learning. The researchers used a qualitative phenomenological research design incorporating... -
Self-reported Diabetes Prevalence and Risk factors in South Africa: Results from the World Health Survey
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council, South AfricaUsing the data from the South African World Health Survey (WHS), the current study aims to assess the self-reported prevalence of diabetes and associated risk factors by socio-economic characteristics in South Africa. A population-based survey of 2314 participants (1116 men... -
Untold Stories of a Group of Black South Africans about the Apartheid Era
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ernst J. van der Merwe --- North-West University (Potchefstroom Campus), South Africa Chris A. Venter --- North-West University (Potchefstroom Campus), South Africa Q. Michael Temane --- North-West University (Potchefstroom Campus), South AfricaThe aim of this research was to explore the alternative stories of a group of black adults who survived the apartheid years in South Africa. It was surmised that the lives of many of the black adults who experienced the... -
Effect of Relaxation Therapy in Reducing Blood Pressure of Essential Hypertension Patients
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Michael Onyeka Ezenwa --- Nnamdi Azikiwe University Awka, NigeriaThe study investigated the effect of relaxation therapy on arterial blood pressure of Patients with essential hypertension. Ten known essential hypertension patients (males = 3; females = 7, age range 41–70, mean age 57.2 years, SD = 9.93 years) were... -
The Transportability and Utility of Cognitive Therapy in South African Contexts: A Review
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Charles Young --- Rhodes University, South AfricaCognitive therapy could be more widely promoted in South Africa given the great disparity between the need and provision of psychological therapies. Three possible objections to the promotion of cognitive therapy are considered: uncertainty surrounding the effectiveness of cognitive therapy... -
Why We Should Avoid the use of the Term “Post-Abortion Syndrome”: Commentary on Boulind and Edwards (2008)
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Catriona Macleod --- Rhodes University, South AfricaBoulind and Edwards (2008) present a case study of Grace, a women suffering, in their words, from post-abortion syndrome (PAS). In this commentary I argue that while Boulind and Edwards' (2008) report is useful in terms of documenting the therapeutic... -
A Group of Black South Africans' Experience of Telling their Untold Stories about the Apartheid Era
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacques Vermeulen --- North-West University, South Africa Chris A. Venter --- North-West University, South Africa Q. Michael Temane --- North-West University, South Africa Ernst J. van der Merwe --- North-West University, South AfricaThe aim of this research was to explore a group of black South Africans' experiences of telling their untold stories of survival about the apartheid era. The expectation was that if they did become more aware of these alternative stories,... -
The Male Rape Survivor: Possible Meanings in the Context of Feminism and Patriarchy
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gertie Pretorius --- University of Johannesburg, South AfricaThis article covers a philosophical investigation into the possible meanings of rape for male survivors. The legal definitions of rape are investigated and the impossibility of male rape—from a legal, personal and social angle—described. An analysis of male rape in... -
South African Educators' Voice on the Potential Role of Traditional Healers (THs) in Education Support Services
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johanna L. Geldenhuys --- Nelson Mandela Metropolitan University, South AfricaThe aim of this qualitative research was to explore and describe perceptions of the potential role of traditional healers in education support services. Participants were 42 teachers (males = 13, females = 29) from a school district in the Eastern... -
Positive Adaptation in a Community of Postgraduate Students: Applying the Mmogo-method™
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Vera Roos --- North-West University, South Africa Grant Strong --- North-West University, South AfricaThis study explored the experiences of postgraduate psychology students exposed to continuous challenges and described their positive adaptation as a community. Three males and 14 females (age range: 23–30 years; 1 black, 3 coloured, 2 Indian and 11 white) took... -
Offender Rehabilitation and Counselling Dynamics in the South African Correctional Environment: Systems and Prospects
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ann-Mari Elizabeth Hesselink --- University of South Africa, Friedo Johann Willem Herbig --- University of South Africa,This article provides a theoretical overview of the correctional reform as well as rehabilitative and counselling landscape within South African Correctional Centres. Key challenges being faced in this arena include corruption/collusion of correctional staff, poor and failing infrastructure, high staff... -
Longitudinal Predictive Validity of a Learning Potential Test
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marié de Beer --- University of South Africa,The aim of this article is to provide empirical psychometric evidence of the (longitudinal) predictive validity of a learning potential measure—the Learning Potential Computerised Adaptive Test (LPCAT)—in comparison with standard static tests with school aggregate results as the criterion measure... -
A Modern Assessment Psychometric Approach to Dynamic Assessment
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marié de Beer --- University of South Africa,Although dynamic assessment (DA) has been hailed as a positive move towards fair assessment, it has generally not been used in educational or industry settings to the same extent that standard (static) tests have been. The present article attempts to... -
Marriage and Counselling in African Communities: Challenges and Counselling Approaches
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Tholene Sodi --- University of the Limpopo, Mary O. Esere --- University of Ilorin, Nigeria Emmy M. Gichinga --- GEM Counseling Services, Kenya Patience Hove --- Zimbabwe Women's Faith Ministries, ZimbabweThe article explores a variety of marital counselling approaches relevant to African settings: indigenous, Western, Christian and Islamic. These approaches to marital counselling are influenced in their use by various social movements, including globalisation, women empowerment, sexual orientation and living... -
Career-story Interviewing Using the Three Anecdotes Technique
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacobus G. Maree --- University of Pretoria,This article describes the value of using the Three Anecdotes Technique (TAT) during career-story interviewing. The TAT is a technique aimed at eliciting clients' three earliest memories to help counsellors identify clients' preoccupations and thereby support them to deal with... -
Life Designing in 21st Century: Using a New, Strengthened Career Genogram
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Annamaria Di Fabio --- University of Florence, ItalyThis work proposes the use of a new, strengthened career genogram in a life designing paradigm for the 21st century. The article shows the importance of the new paradigm for career construction and self-constructing in life designing interventions. From this... -
Resilience and Career Counseling: Describing the Utility of Quadrant Mapping
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Liesel Ebersöhn --- University of Pretoria,This article describes the manner in which educational psychology students (n = 11 females) used quadrant mapping when doing career counseling with Grade 9 youths (n=88, 47 = male, 41 = female) in a rural secondary school in South Africa... -
Using a Personal Portfolio for Identity Development with an Adolescent
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Suzanne Bester --- University of Pretoria, South Africa Mugsy Quinn --- University of Pretoria, South AfricaThis article reports on the findings of an instrumental case study that was exploratory and descriptive in nature. An open and flexible investigation was conducted with the purpose of gaining insight into the potential value of using a personal portfolio... -
Exploring the Psychological Exteriority and Interiority of Men's Violence Against Women
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ursula Lau --- University of South Africa, Garth Stevens --- University of the Witwatersrand,This study explored male perpetrators subjective experiences of violence against their intimate partners. Participants were a convenience sample of 12 men (11 ‘Black’ and 1 ‘White’, between 18 to 70 years of age) recruited from three organisations in Johannesburg, South... -
Exploring Young Black Persons' Narratives About the Apartheid Past
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Cheryl Petersen --- North-West University (Potchefstroom Campus), South Africa Chris Venter --- North-West University (Potchefstroom Campus), South Africa Karel Botha --- North-West University (Potchefstroom Campus), South AfricaThis study examined intergeneration narratives about the apartheid past through the retelling of 14 young black South Africans aged 16 to 21 (males =6, females =8). A qualitative categorical-content data analysis underpinned by social constructionism, explored these secondary narrative segments... -
Influence of Socio-Demographic Factors on SRAVEN Performance
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Raegan Murphy --- University College Cork, Ireland Nafisa Cassimjee --- University of Pretoria, South Africa Clare Schur --- University of Pretoria, South AfricaThis exploratory study aimed to investigate the influence of specific socio-demographic variables on a computerized test of non-verbal neuropsychological performance. Six hundred and thirty South African first year students were assessed using the University of Pennsylvania Computerized Neuropsychological Test Battery... -
The Influence of Mode of Test Administration on Test Performance
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Anisha Bhoola-Patel --- University of the Witwatersrand, South Africa Sumaya Laher --- University of the Witwatersrand, South AfricaThis study examined the influence of mode of test administration (paper based or computer-based) on anxiety levels and test performance. Participants were 44 learners (males = 22, females = 22) from three schools in Johannesburg, South Africa who completed both... -
An Evaluation of the Reliability and Validity of the Self-Appraisal Questionnaire (SAQ) in South African Context
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- University of South Africa, Ann-Mari Hesselink --- University of South Africa,The Self-Appraisal Questionnaire (SAQ: Loza, 2005) is a self-report questionnaire designed to assist with the prediction of violent and nonviolent recidivism among correctional populations. Use of scale could help in the assessment of risk and the identification of factors that... -
Initial Review of the Psychometric Properties of a Computerised Career Preference Test for Career Guidance Assessment
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marié de Beer --- University of South Africa,Psychometric proprties of the Career Preference Computerised Adaptive Test (CPCAT) (De Beer & Marais, 2010; De Beer, Marais, Maree, & Skrzypczak, 2008) are reported. Participants were high school students (n=343; males=279, females=164)at Grade 9 and Grade 11 level from a... -
“I am doing okay”: Intrapersonal Coping Strategies of Children Living in an Institution
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kesh Mohangi --- University of Pretoria, South Africa Liesel Ebersöhn --- University of Pretoria, South Africa Irma Eloff --- University of Pretoria, South AfricaIn this case study, we utilized a Resilience framework and Sense of Coherence theory to understand how a group of children coped while living in an institution as a consequence of HIV/AIDS. We followed a qualitative and interpretivist approach. The... -
Sex Offender Assessment Procedures: A South African Comparison
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Anni Hesselink --- University of South Africa, Johan Prinsloo --- University of South Africa,This study reports on the results of a reflective case analysis of a first generation assessment procedure of a chronic offender. The assessment focused on offender's experiential world and his pathway to crime, including precipitating crime risk factors as well... -
Resilience in Families Adapting to Autism Spectrum Disorder
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Leché Kapp --- Nelson Mandela Metropolitan University, Ottilia Brown --- Nelson Mandela Metropolitan University,This study explored adjustment and adaptation in families living with Autism Spectrum Disorder (ASD). Data on family resilience were collected from 19 biological mothers of children with ADS. The data were analysed qualitatively and quantitatively to yield information on factors... -
Student Development and Support using a Logotherapeutic Approach
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Tshwane University of Technology, Juan A. Nel --- University of South Africa,This study reports on participants' meaning-centred experiences and perspectives after attending a logotherapy-based student development and support programme. Thirteen students who were enrolled in the first year of the academic programme, in health science programme at a South Africa university,... -
The Value of Life Design Counselling for an Adolescent who Stutters
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacobus G. Maree --- University of Pretoria, Yolene Hancke --- University of Pretoria,This study reports the results of a life design approach case study with an adolescent with stuttering. A variety of postmodern techniques were used to engage the adolescent in life design conversations about a preferred and meaningful future. Post-intervention, the... -
Psychofortology of Women Undergoing Infertility Treatment
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Paul Fouché --- University of the Free State, South Africa Nico Nortjé --- University of the Free State, South Africa Kerry Phillips --- Nelson Mandela Metropolitan University, Louise Stroud --- Nelson Mandela Metropolitan University,This study explored the coping and subjective well-being of women undergoing infertility treatment. Participants were 61 South African women attending a fertility clinic was selected by means of non- probability purposive sampling (mean age = 34.5). Data were gathered by... -
Teacher Reported Poverty Effects on Education Participation in a South African District
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sindiswa Stofile --- University of the Western Cape, Nora Linden --- Bergen University College, Rouaan Maarman --- University of the Western Cape,This study reports on teachers' perceptions of the effects of poverty on education participation in a district in the Eastern Cape Province in South Africa. Participants were 21 teachers (males = 10; females = 11) from seven schools (primary =5,... -
Appreciative Inquiry: A Case Study of a Woman's Experience of Poverty
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Cebile Tebele --- University of South Africa, Kathryn Nel --- University of South Africa,This study utilised an instrumental case study to investigate the experience of a woman living in poverty in a South African community. The participant was a widowed African female with two children. Data were collected during an interview process that... -
Combining Ericksonian and Sandplay Approaches to Therapy with Children who Manifest Depression as a Developmental Barrier
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacobus G. Maree --- University of Pretoria, Liesel Ebers¨hn --- University of Pretoria, Dirkie A. de Villiers --- University of Pretoria,This study reports on the use of the Ericksonian approach combined with sandplay therapy to assist children who present with depression, a troublesome developmental barrier. Participants were six children and/or adolescents with depression (two males and four females; age range... -
A Case of Tragic Optimism: Volunteer Counsellors' Experience of Meaning
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Tshwane University of Technology, Juan A. Nel --- University of South Africa,This study applied concepts from logotherapy to construct the meaning that volunteer crisis counsellors experienced by working with victims of crime. Data were collected from seven participants who delivered services at community-driven crisis centre using a qualitative approach. The data... -
Treatment of Posttraumatic Stress Disorder Following an Armed Robbery: A Case Study Testing the Transportability of Trauma-Focused Cognitive-Behavioural Therapy to Urban Africans
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Bradley Drake --- Rhodes University, David Edwards --- Rhodes University,John, an urban African male who developed posttraumatic stress disorder (PTSD) following an armed robbery at the petrol station where he worked, was treated with 12 sessions of Trauma-focused cognitive behaviour therapy. Intervention involved a combination of psychoeducation, prolonged imaginal... -
Beyond Smiling: The Evaluation of a Positive Psychological Intervention Aimed at Student Happiness
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Llewellyn Ellardus Van Zyl --- North-West University (VTC), South Africa Sebastiaan Rothmann --- North-West University (VTC), South AfricaThe aim of this study was to develop and evaluate a positive psychological intervention (PPI) aimed at increasing happiness of students in a tertiary educational institution. A convenience sample (n = 20) was drawn from the entire population of academic... -
Victim Empowerment Programme in a Selected Municipality of the Eastern Cape, South Africa: Service Provider Perceptions
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nancy Phaswana-Mafuya --- Human Sciences Research Council, South Africa Karl Peltzer --- Human Sciences Research Council, South Africa Gladys Mlambo --- Human Sciences Research Council, South Africa Seth Mkhonto --- Human Sciences Research Council, South Africa Cily Tabane --- University of the Witwatersrand,An exploratory qualitative study was conducted to assess service providers' perceptions of the Victim Empowerment Programme (VEP) with a focus on VEP knowledge, management, communication, empowerment, utilization and accessibility of services in a selected district of the Eastern Cape of... -
Community-Based Participatory Research a Low-Income Setting: An Illustrative Case of Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sandy Lazarus --- Medical Research Council, South Africa Naiema Taliep --- Medical Research Council, South Africa Abdulsamed Bulbulia --- University of South Africa, South Africa Shaun Phillips --- Hearts of Men, Mohamed Seedat --- University of South Africa, South AfricaThis article describes a community-based participatory research (CBPR) approach in a low-income setting. Using the SCRATCHMAPS project as a case example and with literature control, we show that CBPR is influenced by dynamics relating to knowledge and power, resources and... -
The Use of Concept Mapping in Engaging Women to Identify the Factors that Influence Violence
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sarah Crawford-Browne --- University of Cape Town, South Africa Debra Kaminer --- University of Cape Town, South AfricaThis study used concept mapping to characterise the factors influencing violence as perceived by a sample of women community dwellers. Participants were 50 women (aged between 18 and 65 years) living in a high violence area of a major South... -
The Philosophical Assumptions, Utility and Challenges of Asset Mapping Approaches to Community Engagement
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sherianne Kramer --- University of South Africa, South Africa Taryn Amos --- University of South Africa, South Africa Sandy Lazarus --- University of South Africa, South Africa Mohamed Seedat --- University of South Africa, South AfricaThis literature review is a discussion of asset-based approaches to community engagement. Following a literature search, we identified several asset mapping approaches: Asset-Based Community Development (ABCD); Participatory Inquiry into Religious Health Assets, Networks and Agency (PIRHANA); Community Health Assets Mapping... -
An Ethic of Care in Participatory Research in School Community Settings
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Estelle Swart --- Stellenbosch University, South Africa Marietjie Oswald --- Stellenbosch University, South AfricaWe explored the manifestation and development of an ethic of care in school communities using a variety of participatory research methods. The qualitative data from this ethnographic case study were analysed using constructivist grounded theory. Our findings suggest that an... -
Community Centred Learning: A Pathway to Community Engagement
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lebogang Lorraine Phiri --- University of South Africa, South Africa Natasha Hendricks --- Medical Research Council, South Africa Mohamed Seedat --- University of South Africa, South AfricaWe report on the experiences of participants on a course which represented a pathway to community engagement. The 76 participants (20 males, 46 females), from two low-income South African communities, were part of a multi-lingual group representing English, Africans, isiZulu... -
Exploring Perceptions of Xenophobia in a Sample of South African Employees
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Elzabé Coetzee --- University of South Africa, South AfricaThis brief report aimed to explore the perceptions of xenophobia within a sample of South African employees. Data on participants' views regarding xenophobia, related xenophobic violence and causes were collected from 127 respondents (males=43%, females=57%, with the majority of respondents... -
Responsive Integrative Treatment of Clients with PTSD and Trauma-Related Disorders: An Expanded Evidence-Based Model
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: David Edwards --- Rhodes University,In this article a practitioner oriented review of the literature on the treatment of post-traumatic stress disorder is used to construct a phase-based model that can serve as a basis for case formulation and treatment planning. Treatments shown to be... -
“It's Like Uprooting Trees”: Responsive Treatment for a Case of Complex Post-Traumatic Stress Disorder Following Multiple Rapes
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Francois van der Linde --- Rhodes University, David Edwards --- Rhodes University,This systematic case study documents 27 sessions of assessment and treatment with cognitive therapy of Bongi (23) who presented with major depression, posttraumatic stress disorder and borderline traits. Bongi had been raised in a punitive environment, had been raped three... -
Psychological Career Resources, Career Adaptability and Hardiness in Relation to Job Embeddedness and Organizational Commitment
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nadia Ferreira --- University of South Africa, Melinde Coetzee --- University of South Africa, Andries Masenge --- University of South Africa,The study examined the relationship between employees' psychological career meta-capacities and their job retention-related dispositions. Participants were a convenience sample (n=355) of managerial and staff levels in the human resource management field. They completed the Psychological Career Resources Inventory (PCRI),... -
Offenders with Mental Disorders in a South African Prison Population: Profiling the Behavioural Characteristics on Mental Illness
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- University of South Africa,This study validates a protocol to identify inmates with institutional adjustment difficulty from mental disorder, and who might have a need for therapeutic programming of a cognitive nature. The Self-Appraisal Questionnaire (SAQ) was administered to a total of 236 South... -
Students' Personality Traits and Learning Approaches
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: David P. Ngidi --- Central University of Technology, South AfricaThis study examined students' usage of deep and surface approaches to learning as well as the relationship between students' personality attributes and their approaches to learning. Participants were 284 undergraduate education students registered with a South African regular university (females... -
Research Agenda to Facilitate Community Participation In HIV Vaccine Research: A Participatory Approach
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Anthea Lesch --- Stellenbosch University, South Africa Sagri Singh --- International AIDS Vaccine Initiative Country and Regional Programmes, USA Zuhayr Kafaar --- Stellenbosch University, South Africa Leslie Swartz --- Stellenbosch University, South Africa Alexandre Menezes --- International AIDS Vaccine Initiative Country and Regional Programmes, USAThis article reports on a participatory process to generating a research agenda to guide research on community participation in HIV vaccine research. Community members representing stakeholder parties involved in the HIV vaccine research enterprise were invited to participate in the... -
Victimisation in the Lives of Lesbian-Identified Women in South Africa: Implications for Clinical Assessment and Treatment
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Anita Padmanabhanunni --- University of the Western Cape, South Africa David Edwards --- Rhodes University, South AfricaFew clinical studies have examined victimisation in the lives of lesbian women in South Africa and whether there are distinct implications for psychological treatment. This paper presents the assessment and treatment of a lesbian-identified South African survivor of childhood sexual... -
Psychological Career Resources and Work Engagement of Early Career Consulting Staff
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jenny Venter --- University of Pretoria, Melinde Coetzee --- University of South Africa, Johan S. Basson --- University of Pretoria,This study explored whether employees' psychological career resources significantly predicted their work engagement. A non-probability sample of 111 early career (26–40 years of age) white male and female staff in a South African human resource software and technology consulting services... -
Validating An Adapted Measure of Organisational Energy in the South African Context
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Rowenna Erin Cuff --- University of Pretoria, South Africa Nicolene Barkhuizen --- North-West University, South AfricaThis study validated an adapted measure of organisational energy, namely the Energy Scapes Profile (ESP), in the South African context, considering also possible differences in perceptions of organisational energy by the participants' demographics. Participants were a convenience sample of 304... -
Substance Abuse Inpatients' Experience of Animal-Assisted Therapy
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nicoleen Coetzee --- University of Pretoria, South Africa Jarrod T. Beukes --- University of Johannesburg, South Africa Ingrid Lynch --- University of Pretoria, South AfricaThis study explored the utility of Animal Assisted Therapy (AAT) as a therapeutic modality within a substance abuse inpatient treatment programme in the Eastern Cape Province in South Africa. Four male participants residing in a 21-day treatment centre participated in... -
Critical Incidents Impact Management Among South African Police Service Officers
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Masefako Andronica Gumani --- University of Venda, Eduard Fourie --- University of South Africa, Martin Terre Blanche --- University of South Africa,This article describes and interprets the law enforcement processes of managing critical incidents in a South African police district. Twenty participants from various police units were selected through purposive and theoretical sampling techniques. Data were collected using unstructured open-ended interviews,... -
African Migrants' Experiences of Xenophobic Violence in South Africa: A Relational Approach
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Shingairai Chigeza --- North-West University, Alda De Wet --- University of Limpopo, Vera Roos --- North-West University, Charl Vorster --- North-West University,This study explores the experiences of African migrants in relation to South African citizens in the course of xenophobic violence in South Africa. In a secondary data analysis of a larger research project, 44 migrants (both men and women with... -
A Psycho-Diagnostic Tool for Psychotherapy: Interactional Pattern Analysis (IPA)
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Charl Vorster --- North-West University, South Africa Vera Roos --- North-West University, South Africa Mari Beukes --- North-West University, South AfricaThis article proposes a description of a psycho-diagnostic tool for psychotherapists, the Interactional Pattern Analysis (IPA). Sixteen interpersonal variables are proposed to describe the observable behaviour that constitutes a client's interpersonal style within the context of a particular relationship, such... -
Types of Umbilini (Intuition) in the “ukunyanga” (Xhosa Divination) Tradition
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lily-Rose Nomfundo Mlisa --- University of Fort Hare, Philip Nel --- University of Free State,The study sought to characterize types of umbilini, a therapeutic skill in amagqirha divination system. Qualitative data on umbilini experiences were collected from 115 participants with self-reported umbilini experience and supplemented with 25 consultation session observations between amagqirha and their... -
Exploring Expressive Sandwork as a Form of Psychosocial Care: A Case Study of a Vulnerable Adolescent
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Carien Lubbe-De Beer --- University of Pretoria, Imme Thom --- University of Pretoria,This paper explores the use of expressive sandwork as a form of psychological support for a youth with psychosocial vulnerability. A case study, which emanated from a community outreach project, is briefly described of a male black participant, from a... -
Meaning in Life Within an African Context: A Mixed Method Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Tshwane University of Technology, South AfricaThis article reports on a mixed method study that described and explored meaning in life among 179 university students (53.63% female). Data on their sense of meaning in life were collected using the Life Purpose Questionnaire (Hutzell, 1989), supplemented with... -
Teacher Conceptions and Preferences for Student Discipline Instruments in South African Schools: A Narrative Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ntshangase Sibusiso --- University of South Africa, Naidu Narainsamy --- University of South Africa,This study investigated the teachers' understanding of the context of alternative methods to maintain discipline in South African schools. A narrative approach was use in conducting semi-structured interviews with 10 primary school teachers (females = 80%). Data were analysed using... -
Approximation in Lipschitz algebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: T.G. Honary H. MahyarWhen X is a compact subset of C n and 0 < α ≤ 1, we define subalgebras of the Lipschitz algebras Lip(X, α) and lip(X, α), which are generated by polynomials, rational functions with poles off X, functions which... -
Homomorphisms of complete distributive lattices
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Pultr J. Sichler V. TrnkováThe category of all complete distributive lattices and their complete homomorphisms is universal, and this is also true for the category of all complete distributive lattices whose morphisms preserve complete joins, finite meets and an additional nullary operation. A survey... -
A Matching Technique and Structure Theorems for Sturm-liouville Boundary Value Problems with Interior Singularities
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: ThomasM. AchoAsymptotic solutions for the interior double pole Sturm-Liouville boundary value problem are obtained using a method of matched asymptotic approximations. Employing asymptotic forms of the Whittaker functions, the WKB approximations and Airy functions, solutions are obtained valid and non-vanishing on... -
A Characterization of the Prime Closed Filter Compactification of a Topological Space
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H.L. Bentley H. HerrlichThe prime compactification whose points are the prime closed filters can be defined for a general topological space and is naturally functorial. We derive several properties of this compactification and present a characterization. -
A new line search technique
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: T.A. Adewale F.M. AderibigbeIn this paper the problem of line search, an important step in most multidimensional optimization algorithms, is considered. If conjugate gradient descent is to be used in producing a descent sequence for a given functional f on a Hilbert space... -
Universal harmonic functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. BonillaIn this paper, we prove that there exists an infinite dimensional closed vector space M of harmonic functions in R n such that each v ∈ M \{0} is a universal harmonic function. -
Convergence of ray sequences of Padé approximants for 2 f 1(a, 1; c; z), (c > a > 0)
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: K. Driver K. JordaanThe Padé table of 2 F 1(a, 1; c; z) is normal for c > a > 0 (cf. [4]). For m ≥ n - 1 and c ∉ Z-, the denominator polynomial Q mn (z) in the [m/n]... -
Approximate Symmetries of the Boussinesq Equation
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: V.A. Baikov S.A. KordyukovaIn this paper we show that all exact symmetries of the linear wave equation are inherited by the Boussinesq type equation with a small parameter as approximate symmetries in any order of precision. We find an approximate integraldifferential transformation of... -
The Dual Space of an Asymmetric Normed Linear Space
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: L.M. García-Raffi Romaguera Sanchez-PérezGiven an asymmetric normed linear space (X, q), we construct and study its dual space (X ∗ , q ∗). In particular, we show that (X ∗ , q ∗) is a biBanach semilinear space and prove that (X, q)... -
On the Unboundedness of Control Operators for Bilinear Systems
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Abdelali IdrissiThe aim of this work is to study the classes of unbounded linear control operators which ensure the existence and uniqueness of the mild and strong solutions of certain bilinear control systems. By an abstract approach, similar to that adopted... -
On a Domain of Invertibility of a Differentiable Mapping
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Piotr FijalkowskiThis paper deals with a domain and its range of invertibility of a differentiable mapping at a point with an invertible derivative. Assuming the C 2-class of a mapping T defined in a neighbourhood of a point x 0 in... -
Strong Versus Uniform Continuity: A Constructive Round
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Peter Schuster Vîţă Douglas BridgesThe notion of apartness has recently shown promise as a means of lifting constructive topology from the restrictive context of metric spaces to more general settings. Extending the point-subset apartness axiomatised beforehand, we characterise the constructive meaning of 'two subsets... -
Spectral Mapping Theorems For Evolution Semigroups on Spaces of Almost Periodic Functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Walter Hutter Frank Räbiger. We show that the weak spectral mapping theorem holds for evolution semigroups on spaces of periodic functions. Furthermore, we prove the spectral mapping theorem for evolution semigroups on spaces of (weakly asymptotically) almost periodic functions. The results are applied... -
The Approximation of Compacta by Finite T0-Spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: RalphD. Kopperman VladimirV. TkachukIt has long been known that compact Hausdorff spaces can be approximated using finite T 0-spaces, and that many can be represented as inverse limits of polyhedra. Here we study the relationship between these two types of representation. In Section... -
Lyapunov Convexity Type Theorems For Non-Atomic Vector Measures
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: E. Saab P. SaabGiven a Banach space X, we consider the problem of when the range of a non-atomic, and σ-additive X-valued measure has a convex closure. We give a survey of Lyapunov convexity type theorems pertaining to this problem. We also give... -
A Note On Homotopy Pushout And Homotopy Coherence
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: K.A. Hardie K.H. Kamps P.J. WitbooiWe present a self-contained argument, characterising a homotopy pushout square by recognising it as an initial object in a certain coherent homotopy category of spaces under a cotriad. -
Fluid Dynamics of Parallel Plates Viscometer: a Case Study of Methods Of Series Summation
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: O.D. MakindeThe fluid dynamics of parallel plates viscometer is investigated mathematically using both the Navier-Stokes and continuity equations for an incompressible viscous fluid. The problem admits similarity solutions, thereby reducing the unsteady Navier-Stokes equations to a parameter dependent fourth order nonlinear... -
Cb (X) Revisited: Induced Map And Submetrizability
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: S. KunduThis paper, in the first half, studies the induced map on the space C b(X) of all continuous real-valued functions on a Tychonoff spaceX, where the function space has the bounded-open topology. In the second half, the submetrizability of C... -
Separation of Convex Sets and Best Approximation in Spaces with Asymmetric Norm
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: S. CobzaşThe aim of the present paper is to show that some results in Banach spaces have their analogs in spaces with asymmetric seminorms. A space with asymmetric seminorm is a pair (X, p),where X is a real vector space and... -
Mapping spaces and homotopy theory
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: PeterI. BoothLet q : Y → B be a map (= continuous function) and Z be a space. We will use Y ! Z to denote a set of partial maps from Y to Z, i.e.those such maps whose domains are... -
Stability of asymptotic properties of Hille-yosida operators under perturbations and retarded differential equations
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Lahcen ManiarWe give conditions on the strongly continuous semigroup (T 0(t)) t≥0, generated by the part of a Hille-Yosida operator A on X 0 := D(A), and a non-autonomous family of operators (B(t)) t≥0 such that the evolution family (U(t,s)) t≥s≥0,... -
On the way to Frölicher Lie groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: P.P. Ntumba T.A. BatubengeIn this paper, we start by showing that one can obtain by way of diffeomorphisms some classical smooth curves and surfaces. The notion of bundles is also introduced in the category of Frölicher spaces, and one may carry on investigating... -
A positive note on a counterexample by Arens
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Gerard Buskes Robert PageIn his seminal paper [2], Arens gave an example of a positive bilinear map P : l 1 × l 1 → R that is not regular. In this note we show that for Banach lattices E such a bilinear... -
Characterisation of regular graphs as loop graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Eric MwambeneThere have been various generalisations of Cayley graphs, prototypes of transitive graphs. The most generalised is the description of graphs on general groupoids. What has clearly emerged in this exercise is that the philosophy of constructing graphs on groupoids offers... -
Approximate Conserved Quantities of Conservative Dynamical Systems in R 3
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: G. Ünal C.M. KhaliqueApproximate generalized symmetries associated with the resonances of conservative dynamical systems in R 3 have been discussed. It has been shown that an approximate first integral (conserved quantities) can be found from the knowledge of two conservative approximate symmetries. Furthermore,... -
Graph-Coloring and Choice a Note on a Note by Shelah and Soifer
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Horst Herrlich Y.T. RhineghostSharpening results of Shelah and Soifer we will show that in ZF set theory the Shelah-Soifer Graph G has the following properties: 1. If AC(2), the axiom of choice for families of 2-element sets, or AC(R), the axiom... -
Padé Approximations to the Logarithm I: Derivation Via Differential Equations
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: J.A.C. WeidemanExplicit formulas for the polynomials that define Hermite-Padé approximations to the logarithm are derived. The main elements of the derivation are Frobenius' method for solving linear differential equations, and automatic summation algorithms. Applications to finite difference formulas and Laplace transforms... -
On classes of maps with the extension property to the bicompletion in quasi-pseudo metric spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: SeithutiP. MoshokoaExtensions of CS-regular maps from a dense subset of a metric space to the whole space are discussed in the literature. It is the purpose of this paper to present results on extensions of these maps to the bicompletion in... -
A new compactness type topological property
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Dongsheng ZhaoBy a gauge on a topological space we shall mean a mapping that assigns each element in the space an open neighbourhood. We investigate some topological properties which can be characterized using gauges. The main property we will consider is... -
Sobolev spaces on graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: M.I. OstrovskiiThe present paper is devoted to discrete analogues of Sobolev spaces of smooth functions. The discrete analogues that we consider are spaces of functions on vertex sets of graphs. Such spaces have applications in Graph Theory, Metric Geometry and Convex... -
Representing vertex-transitive graphs on groupoids
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Eric MwambeneVertex-transitive graphs are one of the most favoured class of graphs in modelling scientific phenomena if symmetry is at issue. An understanding of these graphs should, therefore, be an obvious undertaking. Here, we present a characterisation of vertex-transitive graphs as... -
Topologies on uniform hyperspaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Gavin HitchcockThis paper includes the proofs of results announced in [3], as well as other results deriving from the Isbell-Smith-Ward problem of comparability of Hausdorff uniform topologies on hyperspaces of uniform spaces. In particular we give (in Theorem 6) simple conditions... -
Simultaneous stratification and domination in graphs with minimum degree two
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: MichaelA. Henning J.E. MaritzIn this paper we continue the study of stratification and domination in graphs explored by Chartrand et al. in [4]. We define an F-coloring of a graph to be a red-blue coloring of the vertices such that every blue vertex... -
On the irrationality of a certain multivariate infinite product
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ping ZhouBy using simultaneous rational approximation, we prove that If q, m, M are integers with q > 1, m ≥ 2, M ≥ m 2 − 2, and r 1, r 2, …, r m are any positive rationals,... -
Representation of slim algebraic regular cozero maps
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Karimi FeizabadiIn this paper a new tool, the cozero maps, is introduced to study algebraic structures in pointfree topology, which generalizes cozero elements and the cozero part of a frame. The slim regular algebraic cozero maps are represented. We proved that... -
On the extension of classes of continuous maps to the bicompletion in quasi-uniform spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: SeithutiP. MoshokoaIn [6] characterizations of continuous maps between uniform spaces in terms of nets and filters are provided. Also, extensions of maps defined on a dense subset of a uniform space that preserve Cauchy filterbases between uniform spaces to the whole... -
Approach structures and measures of connectedness
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: David Holgate Mark SioenMeasures of connectedness versus disconnectedness are introduced in anarbitrary topological construct as fixed points of a Galois connection. This places measures of connectedness found in the literature in a general categorical frame-work. -
A Transition from Total Domination in Graphs to Transversals in Hypergraphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: MichaelA. Henning Anders YeoA set S of vertices in a graph G without isolated vertices is a total dominating set of G if every vertex of G is adjacent to a vertex in S. The total domination number of G is the minimum... -
Approximate First Integrals of a Chaotic Hamiltonian System
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: G. Ünal C.M. Khalique G.F. AlişverişçiApproximate first integrals (conserved quantities) of a Hamiltonian dynamical system with two-degrees of freedom which arises in the modeling of galaxy have been obtained based on the approximate Noether symmetries for the resonance ω 1 = ω 2. Furthermore, Kolmogorov-Arnold-Moser... -
On the Mappings Preserving Equality of 2-Distance
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Wei-Jia Jia* --- School of Mathematics Science, P.R. ChinaIn this paper, we consider 2-isometries, 2-continuous mappings and mappings preserving equality of 2-distance and investigate the relation between the three mappings in linear 2-normed spaces. We prove that if f: E → F is a mapping preserving equality of... -
A NOTE ON THE BOUNDEDNESS OF AN INTEGRO-DIFFERENTIAL EQUATION
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Juan Napoles Valdes --- Universidad de la Cuenca del Plata, Corrientes, Argentina,Universidad Tecnologica Nacional, Chaco, Argentina,In this paper we study the prolongability and certain properties of the integro-differential equation [image omitted] -
Rademacher Theorem for Fréchet Spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Caterina La Russa --- Dipartimento di Matematica ed Applicazioni, ItalyLet X be a separable Frechet space. In this paper we define a class A of null sets in X that is properly contained in the class of Aronszajn null sets, and we prove that a Lipschitz map from an... -
Conformal Mapping of a Gear Domain with One Tooth
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: PhilipR. Brown --- Department of General Academics, U.S.A.An alternative approach is given for computing the conformal mapping of a unit disc onto a gear domain with one tooth. By means of this new approach an expression for the first coefficient of the Maclaurin series of the mapping... -
Codes related to line graphs of triangular graphs and permutation decoding
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Washiela Fish --- Department of Mathematics and Applied Mathematics, South Africa Khumbo Kumwenda --- Department of Mathematics and Applied Mathematics, South Africa Eric Mwambene --- Department of Mathematics and Applied Mathematics, South AfricaFor any prime p, we consider p-ary linear codes obtained from the row span of incidence matrices of line graphs of triangular graphs and adjacency matrices of their line graphs. We determine parameters of the codes, their automorphism groups and... -
Necessary and sufficient conditions for approximate strong invariance for semilinear differential inclusions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Alina Ilinca Lazu --- Department of Mathematics, Romania Victor Postolache --- Department of Mathematics, RomaniaWe establish necessary and sufficient conditions for approximate strong invariance referring to semilinear differential inclusions, conditions expressed in terms of a suitable defined tangency concept. -
On the metric dimension of generalized Petersen graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Shabbir Ahmad --- Centre for advanced studies in Pure and Applied Mathematics, Pakistan Muhammad Anwar Chaudhry --- Centre for advanced studies in Pure and Applied Mathematics, Pakistan Imran Javaid --- Centre for advanced studies in Pure and Applied Mathematics, Pakistan Muhammad Salman --- Centre for advanced studies in Pure and Applied Mathematics, PakistanA family G of connected graphs is said to be a family with constant metric dimension if its metric dimension is finite and does not depend upon the choice of G in G. In this paper, we study the metric... -
Slant Riemannian maps from almost Hermitian manifolds
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bayram Ṣahin --- Department of Mathematics, TurkeyAs a generalization of holomorphic submersions, anti-invariant submersions and slant submersions, we introduce slant Riemannian maps from almost Hermitian manifolds to Riemannian manifolds. We give examples, obtain the existence conditions of slant Riemannian maps and investigate harmonicity of such maps... -
AIDS communications through social networks: catalyst for behaviour changes in Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Daniel Low-Beer RandL StoneburnerObjective: To investigate distinctive communications through social networks which may be associated with population behaviour changes and HIV prevalence declines in Uganda compared to other countries. -
Children and youth at risk: adaptation and pilot study of the CHAMP (Amaqhawe) programme in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Arvin Bhana Inge Petersen Andy Mason Zoleka Mahintsho Carl Bell Mary McKayThis paper reports on the adaptation and pilot study of the CHAMP programme (Collaborative HIV/AIDS and Adolescent Mental Health Programme) in South Africa with specific reference to outcome effects among adults. CHAMP was originally developed in the United States and... -
Containment and contagion: How to strengthen families to support youth HIV prevention in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Zubeda Paruk Inge Petersen Arvin Bhana Carl Bell Mary McKayThere has been little research done in South Africa that investigates how families nested within communities can be strengthened to support the prevention of HIV infection in youth. A focused ethnographic case-study approach was employed to better understand how families... -
The impact of reduced drug prices on the cost-effectiveness of HAART in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nicoli Nattrass Nathan GeffenSouth Africa has started 'rolling out' highly active anti-retroviral therapy (HAART) through the public health sector, but implementation has been slow. Studies have shown that in Africa AIDS prevention may be more cost-effective than providing HAART; such published results provide... -
Lover, mother or worker: women's multiple roles and the HIV/AIDS and reproductive health agenda in Tanzania
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lisa Ann RicheyInternational and national campaigns to prevent HIV/AIDS and efforts to promote reproductive health remain separate in terms of conceptualisation and implementation. Local negotiations around reproductive health issues similarly seem to lack explicit attention to HIV/AIDS. This paper argues that even... -
Modelling a traditional game as an agent in HIV/AIDS behaviour-change education and communication
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Charles Ogoye-NdegwaThe level of HIV/AIDS awareness among the Luo of western Kenya is at its highest yet the epidemic continues unabated. While HIV/AIDS is locally recognised as an emergent deadly condition, people seem unconcerned. Deaths related to HIV/AIDS are often euphemistically... -
Barriers to accessing PMTCT services in a rural area of South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Donald Skinner Sakhumzi Mfecane Tebogo Gumede Nomvo Henda Adlai DavidsDespite good intentions and commitment from providers, prevention-of-mother-to-child-transmission of HIV (PMTCT) services can be difficult for pregnant women to access, despite the provision of free health services for women and children. We examined the introduction of PMTCT services in a... -
Vaccine preparedness: lessons from Lyantonde, Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Paul Ritvo Dennis Willms Robert Meisner Laura Brown Adam Goldman Nelson SewankamboTo explore how to better educate rural Africans about preventive HIV/AIDS vaccine trials, 15 semi-structured, open-ended interviews were conducted with villagers in Lyantonde, Rakai District, Uganda. This study reports on the findings by focusing on the attitudes, knowledge and questions... -
The power of AIDS: kinship, mobility and the valuing of social and ritual relationships in Tanzania
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Hansjörg DilgerThe HIV/AIDS epidemic in Africa has become a test case of the effects of globalisation, in that it demonstrates how international processes may affect regional life situations and how 'the local' can simultaneously develop in its own way, through the... -
Preliminary investigation of adherence to antiretroviral therapy among children in Aminu Kano Teaching Hospital, Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mariya Mukhtar-Yola Solomon Adeleke Dayyabu Gwarzo Zubaida Farouk LadanTreatment of HIV with highly active antiretroviral therapy (HAART) has resulted in declining morbidity and mortality rates from HIV-associated diseases, but concerns regarding access and adherence are growing. To determine the adherence level and the reasons for non-adhering to antiretroviral... -
Motor speed and reaction time in HIV/AIDS patients: a case-control study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Olubunmi Ogunrin Francis OdiaseHIV infection can produce a range of cognitive and behavioural symptoms that become more frequent and severe as the immune system deteriorates. This case-control study assessed the reaction time and the motor speed of Nigerian Africans with HIV or AIDS... -
Understanding visuals in HIV/AIDS education in South Africa: differences between literate and low-literate audiences
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Adelia Carstens Alfons Maes Lilian Gangla-BirirThis article reports on a research project aimed at determining the scope and nature of differences in picture comprehension between literate and low-literate audiences in the context of HIV and AIDS. Structured interviews were held with 30 low-literate and 24... -
Perceptions of the benefits and affordability of antiretrovirals among HIV-positive persons in a rural area of South-West Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: PaulS Ogunro AdeniyiK Adeneye TitusO Ogungbamigbe TaiwoA Adewole AdesolaZ Musa JoyI IsikweiTo assess the affordability of antiretroviral drugs (ARVs) and accessibility to treatment for opportunistic infections (OIs) among HIV-1 seropositive persons, we used semi-structured interviewer-administered questionnaires to interview 154 individuals seeking ARV treatment at the Daughter of Charity German Leprosy and... -
Modelling the relationship between antiretroviral treatment and HIV prevention: limitations of the Spectrum AIDS Impact Model in a changing policy environment
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nicoli NattrassThis paper shows how two publicly available epidemiological modelling packages, namely the Spectrum AIDS Impact Model and the ASSA2003 AIDS and Demographic Model, predict very different impacts from rolling out highly active antiretroviral treatment (HAART) on new HIV infections. Using... -
Socio-demographic and clinical features of HIV-positive outpatients at a clinic in south-west Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: FrankI Ojini Adenike CokerDespite the increasing prevalence of HIV in Nigeria, there is scarce knowledge about the spectrum of HIV-related diseases in the country. This paper documents the profile of outpatients seen at the HIV clinic of the Lagos University Teaching Hospital (LUTH),... -
The making of vulnerabilities: understanding the differentiated effects of HIV and AIDS among street traders in Warwick Junction, Durban, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: May Chazan Alan WhitesideThe end of apartheid in South Africa has led to political-economic transition, the deregulation of cities, and increased population mobility, with growing numbers of people living and working in sub-standard and 'informal' urban conditions. These processes have created a fertile... -
Misconceptions about HIV prevention and transmission in Botswana
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gobopamang LetamoMisconceptions about how HIV can be transmitted or prevented often prevent individuals from making informed choices and taking appropriate action. The purpose of the research was to explore the socio-demographic and behavioural factors in Botswana that are associated with misconceptions... -
Key determinants of AIDS impact in Southern sub-Saharan Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Wayne Xavier ShanderaTo investigate why Southern sub-Saharan Africa is more severely impacted by HIV and AIDS than other parts of sub-Saharan Africa, I conducted a review of the literature that assessed viral, host and transmission (societal) factors. This narrative review evaluates: 1)... -
Evidence of AIDS mortality from an alternative source: A Swaziland case study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Alan Whiteside --- Health Economics and HIV/AIDS Research Division, South Africa Chris Desmond --- Health Economics and HIV/AIDS Research Division, South Africa John King --- , Swaziland Jane Tomlinson --- , Swaziland Conway Sithungo --- , SwazilandThis paper explores a way of measuring AIDS mortality in the absence of vital registration. It looks at the death notices in the major daily newspaper in Swaziland, The Times of Swaziland, and asks if these can be analysed to... -
On the virgin cleansing myth: gendered bodies, AIDS and ethnomedicine
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Suzanne Leclerc-Madlala --- , South AfricaThe belief that HIV/AIDS can be cured as a result of having sex with a virgin has been identified as a possible factor in the rape of babies and children in South Africa. While the prevalence of this myth has... -
Epidemiological and demographic HIV/AIDS projections: South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: ThomasM. Rehle --- , USA Olive Shisana --- , South AfricaThe Epidemic Projection Package (EPP) recently developed by the UNAIDS Reference Group on Estimates, Models and Projections and the Spectrum model program developed by the Futures Group were used to model the South African HIV epidemic, project future trends in... -
Bereavement, silence and culture within a peer-led HIV/AIDS-prevention strategy for vulnerable children in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ingrid Van der Heijden --- Child, Youth, Family and Social Development Research Programme, South Africa Sharlene Swartz --- Child, Youth, Family and Social Development Research Programme, South AfricaIn addressing the psychosocial effects of the HIV and AIDS pandemic among vulnerable children, the issue of bereavement appears inadequately addressed. Amid the global discourse on children orphaned and made vulnerable by HIV and AIDS, this paper explores how cultural... -
‘Every disease has its cure’: faith and HIV therapies in Islamic northern Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jack Ume Tocco --- Department of Anthropology, United StatesNorthern Nigeria has one of the highest levels of HIV prevalence among societies that are predominantly Muslim. In the last decade the region has experienced marked expansion of religiously-oriented healing practices following the formal adoption of Islamic sharia law. Since... -
Christian identity and men's attitudes to antiretroviral therapy in Zambia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Anthony Simpson --- School of Social Sciences, United KingdomIncreasing access to antiretroviral therapy (ART), especially in urban areas in Zambia, has transformed the landscape of the HIV epidemic to include hope. Drawing upon long-term ethnographic research, this article briefly describes the religious ideas of a cohort of former... -
Religion, authority and their interplay in the shaping of antiretroviraltreatment in western Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: AlexanderMJ Leusenkamp --- , The NetherlandsThe article explores how religious actors have increasingly shaped the nature of antiretroviral treatment (ART) services in Kabarole district, western Uganda. As have the regular health services, Christian donors, non-governmental organisations (NGOs), and churches in the district have also stepped... -
A critical historical analysis of the South African Catholic Church's HIV/AIDS response between 2000 and 2005
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Stephen Muoki Joshua --- School of Religion and Theology, Department of History of Christianity, South AfricaThe South African HIV and AIDS experience is unique in many ways considering the country's delayed and robust epidemic, the apartheid context, and successive HIV-denialist government regimes. While the struggle for democracy may have overshadowed the enormity of the unfolding... -
Complex negotiations: ‘spiritual’ therapy and living with HIV in Ghana
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Benjamin Kobina Kwansa --- Amsterdam School for Social Science Research, The NetherlandsMany people living with HIV in Ghana make use of spiritual therapy, however complex. This paper describes the complexities of these therapies in the context of increasing access to antiretroviral (ARV) drugs and high levels of HIV stigma. The study... -
Why do some South African ethnic groups have very high HIV rates and others not?
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Chris Kenyon --- Department of Medicine, Division of Infectious Diseases and HIV Medicine, Observatory, South Africa Sizwe Zondo --- Department of Psychology, ASCENT Laboratory, Rondebosch, South AfricaThe differences in HIV prevalence between South Africa's racial/ethnic groups (19.9%, 3.2%, and 0.5% among 15–49-year-old blacks, coloureds and whites, respectively) are as big as those between the countries with the highest and lowest levels of HIV prevalence worldwide. These... -
Formative evaluation of the STAR intervention: improving teachers’ ability to provide psychosocial support for vulnerable individuals in the school community
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ronél Ferreira --- Department of Educational Psychology, South Africa Liesel EbersöhnThe article describes the pilot phase of a participatory reflection and action (PRA) study. The longitudinal investigation explores teachers’ ability to provide psychosocial support within the context of HIV/AIDS following an asset-based intervention. The study ensued from our desire to... -
Sexuality among the elderly in Dzivaresekwa district of Harare: the challenge of information, education and communication campaigns in support of an HIV/AIDS response
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ignatius Gutsa --- Department of Sociology, ZimbabweThis ethnographic study in Dzivaresekwa district, Harare, Zimbabwe, examines the issue of sexuality among the elderly and their challenges in accessing information, education, and communication (IEC) campaigns in the face of HIV and AIDS. The research depended heavily on collecting... -
Negotiating therapeutic citizenship and notions of masculinity in a South African village
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sakhumzi Mfecane --- Department of Anthropology and Sociology, South AfricaThe article explores the idea of therapeutic citizenship in relation to the experiences of men who attend support groups for people living with HIV or AIDS (PLHIV). At a rural South African health facility offering free antiretroviral (ARV) medicines, support... -
‘Keeping healthy in the backseat’: How motherhood interrupted HIV treatment in recently delivered women in Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Opondo Awiti-Ujiji --- Department of Public Health Sciences, Division of Global Health, Sweden Anna Mia Ekström --- Department of Public Health Sciences, Division of Global Health, Sweden Festus Ilako --- , Kenya Dorcas Indalo --- , Kenya Abigael Lukhwaro --- , Kenya David Wamalwa --- , Kenya Birgitta Rubenson --- Department of Public Health Sciences, Division of Global Health, SwedenAlthough there is a large body of literature related to the experiences of motherhood and aspects of the change that it brings about, how the experience of motherhood affects the healthcare of women with chronic illness is less documented. This... -
Why HIV/AIDS should be treated as exceptional: arguments from sub-Saharan Africa and Eastern Europe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Julia Smith --- , United Kingdom Khaled Ahmed --- , South Africa Alan Whiteside --- , South AfricaThe idea that HIV and AIDS gets too much attention and funding emerged in 2008 with a call to end 'AIDS exceptionalism.' This article outlines a short history of AIDS exceptionalism — the idea that HIV and AIDS require a... -
Does accessibility to antiretroviral care improve after down-referral of patients from hospitals to health centres in rural South Africa?
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mosa Moshabela --- , Helen Schneider --- , South Africa SusanM Cleary --- Health Economics Unit, South Africa PaulM Pronyk --- , John Eyles --- School of Geography and Earth Sciences, CanadaWe conducted an evaluation of healthcare accessibility among patients taking antiretroviral treatment (ART) after they were ‘down-referred’ from hospital-based programmes to primary healthcare (PHC) centres in a rural South African setting. A cross-sectional design was used to study 109 PHC... -
The Madikwe Forum: a comprehensive partnership for supporting governance of Botswana's HIV and AIDS response
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gavin George --- Health Economics and HIV and AIDS Division (HEARD), South Africa Candice Reardon --- Health Economics and HIV and AIDS Division (HEARD), South Africa Jonathan Gunthorp --- Health Economics and HIV and AIDS Division (HEARD), South Africa Themba Moeti --- African Comprehensive HIV/AIDS Partnerships (ACHAP), Botswana Innocent Chingombe --- African Comprehensive HIV/AIDS Partnerships (ACHAP), Botswana Lesego Busang --- African Comprehensive HIV/AIDS Partnerships (ACHAP), Botswana Godfrey Musuka --- African Comprehensive HIV/AIDS Partnerships (ACHAP), BotswanaThere is a need for actors within the philanthropic sector to pursue collaborative partnerships with developing nations which could result in sustainable country-led responses to HIV and AIDS. There is also a need to evaluate the structures governing these partnerships... -
Qualitative study of the influence of antidepressants on the psychological health of patients on antiretroviral therapy in Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: ElialiliaS Okello --- Department of Psychiatry, Uganda VictoriaK Ngo --- , United States Gerry Ryan --- , United States Seggane Musisi --- Department of Psychiatry, Uganda Dickens Akena --- Department of Psychiatry, Uganda Noeline Nakasujja --- Department of Psychiatry, Uganda Glenn Wagner --- , United StatesThe study set out to explore how HIV-positive individuals conceptualise and describe depression and its manifestation in their lives, and how this may change over time in the context of antiretroviral therapy (ART) and antidepressant treatment. We conducted in-depth interviews... -
Predictors of sexual behaviour among church-going youths in Nairobi, Kenya: a cross-denominational study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ann Neville Miller --- Nicholson School of Communication, United States Kyalo wa Ngula --- Nicholson School of Communication, United States George Musambira --- Nicholson School of Communication, United StatesWe surveyed church-going youths in Nairobi, Kenya, to investigate denominational differences in their sexual behaviour and to identify factors related to those differences. In comparison with youths attending mainline churches, the youths surveyed at Pentecostal/evangelical churches were less likely to... -
A narrative review of research on the effects of physical activity on people living with HIV and opportunities for health promotion in disadvantaged settings
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Clemens Ley --- , South Africa María Rato Barrio --- , South AfricaThe article explores different types and effects of physical activity for people living with HIV. Considering the lack of studies done in African contexts and the disparity between research settings and natural settings, a narrative review of the literature was... -
Resilience through participation and coping-enabling social environments: the case of HIV-affected children in sub-Saharan Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Morten Skovdal --- Department of Health Promotion and Development, Norway Marguerite Daniel --- Department of Health Promotion and Development, NorwayMany children and youths living in low-resource and high-HIV-prevalence communities in sub-Saharan Africa are presented with daily hardships that few of us can even imagine. It is therefore no surprise that most research reporting on the experiences of HIV-affected children... -
Safeguarding inheritance and enhancing the resilience of orphaned young people living in child- and youth-headed households in Tanzania and Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ruth Evans --- Department of Geography and Environmental Science, United KingdomThis article explores the resilience of orphaned young people in safeguarding physical assets (land and property) inherited from their parents and sustaining their households without a co-resident adult relative. Drawing on the concept of resilience and the sustainable livelihoods framework,... -
The use of rites of passage in strengthening the psychosocial wellbeing of orphaned children in Botswana
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Masego Thamuku --- Department of Health Promotion and Development, Norway Marguerite Daniel --- Department of Health Promotion and Development, NorwayChildren who have been bereaved in the context of AIDS may experience many challenges to their psychosocial wellbeing. Programmes to help orphaned children are usually anchored in child rights. As the individual focus of rights-based approaches is inept in African... -
Schoolchildren affected by HIV in rural South Africa: schools as environments that enable or limit coping
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Fumane Khanare --- School of Education, South AfricaThe importance of psychosocial support for the wellbeing of children made vulnerable by HIV is a frequently discussed topic in the fields of education and HIV-related social science research. For children to juggle both the demands of education and the... -
Strategies to bring about change: a longitudinal study on challenges and coping strategies of orphans and vulnerable children and adolescents in Namibia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mienke Van der Brug --- , The NetherlandsLongitudinal research provides insight about the life trajectories of children, the challenges that children experience in different phases of their lives, and the way children cope with these challenges. The article examines the perspectives of 14 orphaned or vulnerable children,... -
Questioning the use-value of social relationships: care and support of youths affected by HIV in child-headed households in Port Elizabeth, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Diana Van Dijk --- Centre for International Development Issues Nijmegen (CIDIN), The Netherlands Francien Van Driel --- Centre for International Development Issues Nijmegen (CIDIN), The NetherlandsThe opinion that the extended family can fulfil its supportive role in assisting child-headed households continues to exist. How these households encounter support, what this support entails, and how they experience this support is an under-researched subject. Most research literature... -
Poverty, sexual behaviour, gender and HIV infection among young black men and women in Cape Town, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nicoli Nattrass --- Centre for Social Science Research (CSSR), South Africa Brendan Maughan-Brown --- Southern Africa Labour and Development Research Unit, South Africa Jeremy Seekings --- Centre for Social Science Research (CSSR), South Africa Alan Whiteside --- Health Economics and HIV/AIDS Research Division (HEARD), South AfricaThis article contributes methodologically and substantively to the debate over the importance of poverty, sexual behaviour and circumcision in relation to HIV infection, using panel data on young black men and women in Cape Town, South Africa. Methodological challenges included... -
‘Trophy-hunting scripts’ among male university students in Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nelson Muparamoto --- Department of Sociology, ZimbabweDrawing on a multi-method qualitative study, this article examines ‘trophy-hunting’ scripts among male university students in Zimbabwe. ‘Trophy hunting’ is a term I have adopted to refer to hegemonic masculinity rituals through which men gain social admiration for dating and... -
Correlates of HIV-status awareness among adults in Nairobi slum areas
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Remare Renner Ettarh --- , Kenya James Kimani --- , Kenya Catherine Kyobutungi --- , Kenya Frederick Wekesah --- , KenyaThe prevalence of HIV in the adult population in slum areas in Nairobi, Kenya, is higher than for residents in the city as a whole. This disparity suggests that the characteristics of slum areas may adversely influence the HIV-prevention strategies... -
An exploratory study of the individual determinants of students’ sexual risk behaviour at a South African university
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Given Mutinta --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Kaymarlin Govender --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Jeff Gow --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Gavin George --- Health Economics and HIV/AIDS Research Division (HEARD), South AfricaThe prevalence of sexual risk behaviour is high on campuses at South African universities, putting many students at risk of HIV infection. This study explores individual influences on students’ sexual risk-taking behaviour at the University of KwaZulu-Natal. The study collected... -
Media ownership and news framing: an analysis of HIV/AIDS coverage by Ugandan press
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: James Kiwanuka-Tondo --- Department of Communication, United States KellyF Albada --- Department of Communication, United States Fay Cobb Payton --- Department of Communication, United StatesApplying framing theory, the present research analyzes trends in Ugandan news coverage and the prominent issue frames for HIV/AIDS-related stories. In order to determine the influence of other factors, such as media ownership and journalist origin, nearly 800 articles, from... -
Cost-effectiveness analysis of infant feeding strategies to prevent mother-to-child transmission of HIV in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mandy Maredza --- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, South Africa Melanie Y Bertram --- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, South Africa Haroon Saloojee --- Division of Community Paediatrics, School of Clinical Medicine, Faculty of Health Sciences, South Africa Matthew F Chersich --- Centre for Health Policy, School of Public Health, Faculty of Health Sciences, South Africa Stephen M Tollman --- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, South Africa Karen J Hofman --- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, South AfricaDespite increasing availability of perinatal interventions to prevent mother-to-child transmission (MTCT) of HIV in South Africa, MTCT remains high due to breastfeeding. To inform policy decisions in the country, cost-effectiveness of alternative infant-feeding interventions was conducted. Mathematical modelling was used... -
Developing a protocol for managing the biophysical condition of a water management area: the Sabie catchment case study
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: E van Wyk J Jaganyi B van Wilgen C Breen K Rogers D Roux F VenterRecent modification of the South African Water Law spells out fundamental changes for the way the country's water resources will be managed in the future. One of the most significant mandates is the establishment of Catchment Management Agencies (CMAs) and... -
Distribution and biogeography of the Paradiaptominae (Copepoda: Calanoida: Diaptomidae)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NA RaynerThe Paradiaptominae, a subfamily of the large Diaptomidae family, is a small group of freshwater calanoids of which 24 species in four genera have been described. They are endemic to Africa with the exception of four species, Metadiaptomus asiaticus (Asia... -
Can small-scale fisheries contribute to poverty alleviation in traditionally non-fishing communities in South Africa?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TG Andrew QA Rouhani SJ SetiThere has been considerable debate as to the contribution that fishing activities can make to food security and income generation in rural areas of South Africa where fishing has not traditionally been practised. The rural areas in the eastern half... -
The development of a GIS atlas of southern African freshwater fish
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LEP Scott PH Skelton AJ Booth L VerheustA geographic information systems (GIS) based atlas of southern African freshwater fish has been developed for the SADC countries. The JLB Smith Institute of Ichthyology, in collaboration with ALCOM, has developed a database of freshwater fish for this region from... -
Proportional growth and maturation in Penaeus indicus
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HFB ChampionA least squares estimation of inflected linear regression is used to interpret the relationships between carapace length (CL) and total length, abdominal length and abdominal width respectively, in Penaeus indicus and Metapenaeus monoceros. In both species well-defined inflection points with... -
The application of a hydraulic biotope matrix to the assessment of available habitat: Potential application to IFRs and river health monitoring
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RA Wadeson KM RowntreeIn an attempt to meet the requirement of the new South African Water law a number of initiatives are under way to determine the flow requirements for our rivers. An essential component of this initiative is the determination of the... -
Aquatic avifauna of the coastal lakes of the Mhlathuze River system
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DP CyrusThis paper provides the first attempt to bring together all published and unpublished data on the aquatic avifauna of Lakes Mzingazi, Nsezi, Cubhu and Mangeza, situated near Richards Bay in the lower reaches of the Mhlathuze River system. Whilst the... -
Community composition and distribution of macroinvertebrates in the Umzimvubu River, South Africa: a pre-impoundment study
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BR Madikizela AH DyeThis paper presents baseline biological data on aquatic macroinvertebrates and water quality in the Umzimvubu River and selected tributaries, Eastern Cape Province, South Africa, prior to the construction of proposed large-scale water resource developments. Sampling was conducted seasonally at 14... -
Phylogeography of the African catfish, Chrysichthys maurus (Valenciennes, 1839)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: J-F AgnèsePolymorphism at 19 allozyme loci was studied in 227 individuals of the catfish, Chrysichthys maurus (Valenciennes, 1839), collected from ten populations representing nine different river basins in west Africa. Eleven of the loci studied were polymorphic. Analysis showed that populations... -
The effects of lead, water hardness and pH on oxygen consumption, plas- ma chlorides and bioaccumulation in the freshwater fish Tilapia sparrmanii
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: WJ van Aardt LCR VenterClosed system respirometry was performed on captive juvenile Tilapia sparrmanii exposed for 96 hours to a range of Pb-acetate concentrations in hard and soft water to determine the effect of Pb in relation to water hardness and pH. For hard... -
A method for monitoring mangrove harvesting at the Mngazana estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Anusha Rajkaran JanineB Adams DerekR du PreezThe Mngazana estuary supports the third largest area of mangroves, and probably the largest stand of Rhizophora mucronata Lamk., in South Africa. The objective of this study was to determine the extent of harvesting in the Mngazana mangrove forest, using... -
Biomagnification of mercury in fish from Thruston Bay, Napoleon Gulf, Lake Victoria (East Africa)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LindaM Campbell JS Balirwa DG Dixon RE HeckyTotal mercury concentrations (THg) were measured in fish from Thruston Bay, Napoleon Gulf in northern Lake Victoria between 1998 and 2000. Total Hg concentrations in Lates niloticus (Nile perch) and Oreochromis niloticus (Nile tilapia) ranged from 10.6 to 77.5ng g–1... -
A preliminary assessment of the impact of alien rainbow trout (Oncorhynchus mykiss) on indigenous fishes of the upper Berg River, Western Cape Province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DJ Woodford ND ImpsonImpacts of alien rainbow trout (Oncorhynchus mykiss) on critically endangered Berg River redfin (Pseudobarbus burgi), Cape kurper (Sandelia capensis) and Cape galaxias (Galaxias zebratus) in the upper Berg River were investigated in terms of predation and spatial interactions. Trout stomach... -
Macro-invertebrate predators of freshwater pulmonate snails in Africa, with particular reference to Appasus grassei (Heteroptera) and Procambarus clarkii (Decapoda)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CC Appleton BV Hofkin A BaijnathA range of African and alien macro-invertebrates has been reported preying on freshwater pulmonate snails, including those that serve as intermediate hosts for bloodflukes of the genus Schistosoma. Predation by five molluscivorous taxa is reviewed here: indigenous leeches (Glossiphoniidae), marsh... -
The Namibian Scoring System (NASS) version 2 rapid bio-assessment method for rivers
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RW Palmer ED TaylorThis paper presents a rapid bio-assessment method for assessing the ecological condition of streams and rivers in Namibia. The method uses the composition and abundance of aquatic invertebrates, which are identified in the field, mostly to family level. The method... -
Ochthebius (s.str.) capicola (Coleoptera) re-discovered in the Cape Peninsula, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CliveR TurnerNew distributional records and ecological observations are presented for the Cape endemic hydraenid Ochthebius capicola. Considered extinct on the Cape Peninsula, the species has been re-discovered at two adjacent locations as well as at a new site in Tsitsikamma National... -
Fish migrations in two seasonal streams in Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Brian Gratwicke BrianE MarshallFish migrations into the streams of seasonally-flooded depressions (or dambos) that cover the central plateaus of Africa are a well-known phenomenon to scientists and lay people alike. However, the factors causing seasonal migrations are poorly understood and most scientific references... -
The predatory impact of invasive alien smallmouth bass, Micropterus dolomieu (Teleostei: Centrarchidae), on indigenous fishes in a Cape Floristic Region mountain stream
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DarraghJ Woodford N Dean Impson JennyA Day I Roger BillsFish populations in the Rondegat River, a mountain stream in the Olifants-Doring system in the Cape Floristic Region, South Africa were surveyed to assess the impact of predatory alien invasive smallmouth bass Micropterus dolomieu (Lacepède) on the indigenous fishes. This... -
Preliminary testing of the Integrated Habitat Assessment System (IHAS) for aquatic macroinvertebrates
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DeanJ Ollis Charles Boucher HelenF Dallas KarenJ EslerPreliminary testing of the Integrated Habitat Assessment System (IHAS), a widely-used aquatic macroinvertebrate habitat assessment method in South Africa, was undertaken. Based on the sensitivity of the South African Scoring System (SASS) to biotope availability and assuming that SASS Scores... -
Towards the development of a macroinvertebrate sampling technique for palustrine wetlands in South Africa: a pilot investigation in the KwaZuluNatal midlands
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Rebecca Bowd DonovanC Kotze CraigD Morris NevilW QuinnA study was undertaken in November 2003 to derive a suitable sampling technique for collecting a representative sample of aquatic macroinvertebrates from a selected emergent vegetation biotope in a palustrine wetland, Melmoth Vlei, KwaZulu-Natal, South Africa. The aim was to... -
Distribution and habitats of Bulinus natalensis and its role as intermediate host of economically important helminth parasites in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: KennéN de Kock CorneliusT WolmaransThis article focusses on the geographical distribution and habitats of Bulinus natalensis, as reflected by the samples taken from 244 collection sites on record in the database of the National Freshwater Snail Collection (NFSC) at the Potchefstroom campus of the... -
Extreme levels of intra-specific divergence among Cape Peninsula populations of the Cape galaxias, Galaxias zebratus Castelnau 1861, reveals a possible species complex
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Marcus Wishart Jane Hughes Barbara Stewart Dean ImpsonThe Cape galaxias, Galaxias zebratus, is part of the paleao-endemic fauna characteristic of the south-western Cape, South Africa, and is the only galaxiid found in continental Africa. A 284-bp fragment of the cytochrome b region of the mtDNA was sequenced... -
Update on the bathymetry of Lake Mweru (Zambia), with notes on water level fluctuations
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ArthurR Bos CyprianK Kapasa PaulAM van ZwietenA new bathymetric map of Lake Mweru was developed, displaying previously unknown morphological features and correcting the shape of the shoreline as presented in older maps. Water depth was measured during 11 transect cruises in early 1994. Two depressions were... -
Fatty acid composition of muscle and heart tissue of Nile perch, Lates niloticus, and Nile tilapia, Oreochromis niloticus, from various populations in Lakes Victoria and Kioga, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Justus Kwetegyeka G Mpango O Grahl-NielsenThe fatty acid composition in the heart tissue and muscle tissue of the Nile perch, Lates niloticus, and Nile tilapia, Oreochromis niloticus populations from Lakes Kioga and Victoria was determined by methanolysis and gas chromatography of the resulting fatty acid... -
Comparative analysis of the aquaculture potential of hybrid Tilapia zillii (male) × T. guineensis (female) (Teleostei: Cichlidae) in floating cages, cement tanks and earth ponds
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CélineSK Nobah Tidiani Koné Valentin N'Douba Jos Snoeks Gouli Gooré Bi EssetchiP KouamélanThe effect of three rearing systems, floating cages, cement tanks and earth ponds, on the growth rate, feeding efficiency and mortality rates of hybrid tilapia — Tilapia zillii (male) × T. guineensis (female) — was evaluated for 233 days. Fish... -
The response of Cyperus papyrus (L.) and Miscanthidium violaceum (K. Schum.) Robyns to eutrophication in natural wetlands of Lake Victoria, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: J Kipkemboi --- Department of Zoology, Kenya F Kansiime --- , Uganda P Denny --- , The NetherlandsInterrelationships between nutrient concentrations and aerial biomass, root numbers, length and rhizomes size in Cyperus papyrus (L.) (papyrus) and Miscanthidium violaceum (K. Schum.) Robyns (synonymous to Miscanthus violaceus (K. Schum) Pilg.) were established in five different wetlands around the northern... -
Fatty acids of polar lipids in heart tissue are good taxonomic markers for tropical African freshwater fish
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: J Kwetegyeka --- Department of Chemistry, Uganda J Masa --- Department of Chemistry, Uganda BT Kiremire --- Department of Chemistry, Uganda GB Mpango --- Department of Chemistry, Uganda O Grahl-Nielsen --- Department of Chemistry, NorwayThe fatty acid profiles in total, neutral and polar lipids in the heart tissues of five freshwater fish species (Nile perch Lates niloticus, Nile tilapia Oreochromis niloticus, marbled lungfish Protopterus aethiopicus, Bagrus docmak and African catfish Clarias gariepinus) from Lakes... -
Influence of salinity and cadmium on the survival and osmoregulation of Callianassa kraussi and Chiromantes eulimene (Crustacea: Decapoda)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Thwala --- Department of Zoology and Coastal Research Unit of Zululand, South Africa BK Newman --- Department of Zoology and Coastal Research Unit of Zululand, South Africa DP Cyrus --- Department of Zoology and Coastal Research Unit of Zululand, South AfricaThis study investigated the influence of salinity and cadmium on the survival and osmoregulatory capability of two decapod crustaceans, Callianassa kraussi and Chiromantes eulimene. Callianassa kraussi was able to survive in salinities of 5–55 over 96 h, whilst C. eulimene... -
Freshwater scaled chrysophytes, heliozoa and thaumatomonad flagellates from Edo State, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DE Wujek --- Department of Biology, USA MO Kadiri --- Department of Plant Biology and Biotechnology, Nigeria RM Dziedzic --- Department of Biology, USAA total of nine silica-scaled chrysophytes (Chrysophyceae: two species each in Spiniferomonas and Paraphysomonas; Synurophyceae: five Mallomonas species), 16 heliozoa, and two scaled flagellates were recorded from 19 samples collected from Edo State, Nigeria, over a period covering both dry... -
Diversity patterns of temporary wetland macroinvertebrate assemblages in the south-western Cape, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MC Mlambo --- Freshwater Research Unit, Department of Zoology, South Africa MS Bird --- Freshwater Research Unit, Department of Zoology, South Africa CC Reed --- Freshwater Research Unit, Department of Zoology, South Africa JA Day --- Freshwater Research Unit, Department of Zoology, South AfricaAlthough macroinvertebrates are potentially useful for assessing the condition of temporary wetlands, little is yet known about them. Macroinvertebrate assemblages were assessed in 138 temporary wetlands in the south-western Cape, recording 126 taxa. However, predicted richness estimates were all higher... -
Recovery dynamics of zooplankton following mouth-breaching in the temporarily open/closed Mdloti Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Deale --- School of Life Sciences, South Africa R Perissinotto --- School of Life Sciences, South Africa NK Carrasco --- School of Life Sciences, South AfricaMouth-breaching events have major impacts on biological processes in temporarily open/closed estuaries. The aim of this investigation was to monitor zooplankton recovery dynamics following artificial breaching of the Mdloti Estuary in February 2004. Spatial and temporal patterns in zooplankton distribution... -
A morphological study on species of African Mormyrus (Teleostei: Mormyridae) and their electric organ discharges
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: B Kramer --- Zoological Institute, GermanyFive species of Mormyrus Linné 1758, three from West Africa and one each from East and southern Africa, were compared morphologically, and their electric organ discharges (EODs) recorded in the field. The five species were morphologically well differentiated in terms... -
Fish distributions in the Rondegat River, Cape Floristic Region, South Africa, and the immediate impact of rotenone treatment in an invaded reach
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OLF Weyl --- , South Africa BR Ellender --- Department of Ichthyology and Fisheries Science, South Africa DJ Woodford --- , South Africa MS Jordaan --- , South AfricaAlien fishes are considered the most serious threat to native headwater stream fishes in South Africa. A 4 km reach of the Rondegat River is the first section of a South African river to be rehabilitated through the attempted removal... -
Characterisation of potential aquaculture pond effluents, and physico-chemical and microbial assessment of effluent-receiving waters in central Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: YB Ansah --- Department of Fish and Wildlife Conservation, USA EA Frimpong --- Department of Fish and Wildlife Conservation, USA S Amisah --- Department of Fisheries and Watershed Management, GhanaAn understanding of specific aquaculture systems and the impacts of their management practices leads to sound and cost-effective policies to protect the aquatic environment. Water samples were collected in 2009 from fish ponds, streams that receive effluents directly from ponds... -
Seasonal occurrence, distribution and diversity of phytoplankton in the Douala Estuary, Cameroon
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AB Fonge --- Department of Botany and Plant Physiology, Cameroon BG Chuyong --- Department of Botany and Plant Physiology, Cameroon AS Tening --- Department of Chemistry, Cameroon AC Fobid --- Department of Botany and Plant Physiology, Cameroon NF Numbisi --- Department of Botany and Plant Physiology, CameroonThe occurrence and abundance of phytoplankton in the Wouri and Dibamba rivers and the Douala Estuary and their relationships to physico-chemical conditions were studied during the wet and dry seasons of 2008. One-hundred-and-sixty-eight species belonging to 67 genera were identified... -
Effect of feeding frequency and feeding rate on growth of Oreochromis mossambicus (Teleostei: Cichlidae) fry
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RW Luthada --- Department of Zoology, South Africa HL Jerling --- Department of Zoology, South AfricaThe effect of feeding frequency and feeding rate on growth of Oreochromis mossambicus fry was investigated over 30 d under temperature- and light-cycle-controlled conditions on the University of Zululand campus, South Africa, in October and November 2009. Weight gain, specific... -
Mitochondrial and nuclear DNA reveals a complete lineage sorting of Glossogobius callidus (Teleostei: Gobiidae) in southern Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PA Maake --- South African Institute for Aquatic Biodiversity, South Africa M Mwale --- South African Institute for Aquatic Biodiversity, South Africa SM Dippenaar --- Department of Biodiversity, South Africa O Gon --- South African Institute for Aquatic Biodiversity, South AfricaGlossogobius callidus exhibits broad salinity tolerance and is distributed in both estuarine and freshwater environments in southern Africa. Previous studies revealed substantial morphological and molecular variation among populations, suggesting they constitute a species complex. The present study utilised phylogenetic and... -
Estimating population size of Saddle-billed Storks Ephippiorhynchus senegalensis in southern Kruger National Park, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Marcelle van den Hoven --- Endangered Wildlife Trust, South Africa Brian Reilly --- Department of Nature Conservation, South AfricaCounting Saddle-billed Storks in a study area the size of the Kruger National Park, at 2.2 million ha, is difficult because the birds are long-lived, sparse in the landscape and have large home ranges. Aerial surveys conducted to date provide... -
An assessment of the impact of predation by Cape fur seals Arctocephalus pusillus pusillus on seabirds at Dyer Island, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Azwianewi B Makhado --- Branch Oceans and Coasts, Department of Environmental Affairs, South Africa Robert JM Crawford --- Branch Oceans and Coasts, Department of Environmental Affairs, South Africa Lauren J Waller --- CapeNature, South Africa Les G Underhill --- Animal Demography Unit, Department of Biological Sciences, South AfricaAt Dyer Island, South Africa, observations of predation of seabirds by Cape Fur Seals Arctocephalus pusillus pusillus were made during 2004 and 2006/07. It was estimated that seals killed about 7% of adult African Penguins Spheniscus demersus annually. This may... -
Study on the Prepressing of Flakeboard Containing Waste Paper
Item type: Journal Article • Journal: South African Forestry Journal • Authors: Günther Gerischer --- Faculty of Forestry, Rep. of South Africa Dave Reeves --- Faculty of Forestry, Rep. of South AfricaThe purpose of this study was to determine whether the strength properties of a composite board containing waste paper as a core material, could be improved by the prior prepressing of the core material before pressing the product to final... -
Fire and Senescent Fynbos in the Swartberg, Southern Cape
Item type: Journal Article • Journal: South African Forestry Journal • Authors: W. Bond --- ,Some consequences of long intervals between fires were studied in fynbos of the Swartberg Mountains. Results showed that foliage projective cover was less patchy and mostly denser in mature than in senescent regrowth. Proteaceae seedling regeneration was significantly reduced in... -
Sybassoorte in Suid-Kaapland / SILKY BARK SPECIES IN THE SOUTHERN CAPE
Item type: Journal Article • Journal: South African Forestry Journal • Authors: C.J. Geldenhuys --- Departement van Waterwese, Bosbou en Omgewingsbewaring,The differences between the leaves and fruit of Maytenus acuminata and Cassine eucleiformis were investigated experimentally. Leaf differences alone are sufficient to distinguish between the two species having the common characteristics of silky threads in the leaves and twigs. Cassine... -
The Dynamics of the Indigenous Forest-Fynbos Ecotone in the Southern Cape
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.C. van Daalen --- Department of Environment Affairs,A hypothesis that the indigenous forest colonises fynbos and disturbed sites in the Southern Cape has been tested by surveying the forest-fynbos ecotone and the adjoining fynbos and analysing the data by means of reciprocal averaging and factor analysis. On... -
Some Effects of Fire Frequency on Fynbos Plant Community Composition and Structure at Jonkershoek, Stellenbosch
Item type: Journal Article • Journal: South African Forestry Journal • Authors: B.W. van Wilgen --- Department of Water Affairs, Forestry and Environmental Conservation,Fynbos vegetation with three differing fire histories was analysed for floristic composition and structure by means of a stratified systematic sample of 100 plots. The three treatments (fire histories) investigated were short rotation burning (about six years), longer rotation burning... -
Prunus africana in the Bloukrans River Gorge, Southern Cape
Item type: Journal Article • Journal: South African Forestry Journal • Authors: C.J. Geldenhuys --- George Department of Water Affairs, Forestry and Environmental Conservation,The decline of Prunus africana in the most southern end of its distribution is attributed to unsuitable establishment conditions for the seedlings and adverse climatic conditions. Only 43 trees ≥ 10 cm D.B.H. occur 47% of which are dead. The... -
Introduction of Producer Gas as an Alternative Fuel—South African Case Example of a Programme for Applying Technology
Item type: Journal Article • Journal: South African Forestry Journal • Authors: H. Scharfetter --- Council for Scientific and Industrial Research, W.T. Gore --- Council for Scientific and Industrial Research,A techno-economic assessment of the potential of producer gas as an alternative fuel, taking into account local biomass availability. costs. requirements of industry and agriculture, and available technology and equipment was promising. -
The Effect of Nitroacta (Urea Formaldehyde) on the Growth and Development of Eucalyptus grandis and Pinus elliottii
Item type: Journal Article • Journal: South African Forestry Journal • Authors: R.F. Loxton D. G.M. DonaldA pot trial testing the effect of four rates of urea formaldehyde, applied in two forms, on the growth of Eucalyptus grandis and Pinus elliottii is described. It is concluded that the eucalypt responded linearly to this slow-acting nitrogen source... -
The Effect of Long Term Stratification on the Germination of Pinus Pinaster Ait
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D. G.M. Donald --- ,Trials to determine the effect of long term stratification on Pinus pinaster seed subjected to periods of room temperature storage following cold storage and cold storage only indicated that the former could reduce viability of the seedlots. Dormancy of all... -
Variation in Wood Properties of Eucalyptus nitens in a Provenance Trial on the Eastern Transvaal Highveld in South Africa
Item type: Journal Article • Journal: South African Forestry Journal • Authors: R.C. Purnell --- D.R. de Wet Forestry Research Centre,Eucalyptus nitens is one of the four important cold-tolerant eucalypts grown for mining timber and pulpwood on the eastern Transvaal highveld in South Africa. In 1983 an active genetic improvement programme was initiated to improve growth rate, stem form and... -
An Introduction to Digital Terrain Modelling in Forest Site Analysis—An Example from the Grabouw-Lebanon Key Area
Item type: Journal Article • Journal: South African Forestry Journal • Authors: R.N. Thwaites --- Saasveld Forestry Research Centre,An outline of the concept of digital terrain modelling (DTM) is provided which includes the model structure, data capture methods and approaches to analysis and display. Mention is made of the variety of work environments in which DTM is used... -
Is caudal fin colour in tigerfish Hydrocynus vittatus a sex or population trait?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Soekoe --- Centre for Aquatic Research, Department of Zoology, South Africa FH van der Bank --- African Centre for DNA Barcoding, Department of Zoology, South Africa NJ Smit --- Water Research Group (Ecology), Unit for Environmental Sciences and Management, Potchefstroom Campus, South AfricaTigerfish caudal fin colours vary from yellow to red, with distinct dissimilarities previously noted. To understand these colour differences, tigerfish were collected during 2008 to 2010 from four southern African populations in the Upper Zambezi River (ZAM), Okavango Delta (OKA),... -
An interdisciplinary method to harmonise ecology, economy and co-management: fisheries exploitation in Lake Nabugabo, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Vaccaro --- Department of Anthropology and McGill School of Environment, Canada CA Chapman --- Department of Anthropology and McGill School of Environment, Canada EA Nyboer --- Department of Biology, Canada M Luke --- McGill School of Environment, Canada A Byekwaso --- National Fisheries Resources Research Institute, Uganda C Morgan --- McGill School of Environment, Canada D Mbabazi --- National Fisheries Resources Research Institute, Uganda D Twinomugisha --- Makerere University Biological Field Station, Uganda LJ Chapman --- Department of Biology, CanadaCollective action theory predicts that natural resource management at a local level has a higher probability of success if territoriality and jurisdiction of the managerial institution are in synchrony with mobility and territoriality of the resource and exploitation patterns of... -
In Situ Measurements of the Acoustic Target Strength of Cape Horse Mackerel Trachurus Trachurus Capensis Off Namibia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: B. E. Axelsen G. Bauleth-D'Almeida A. KanandjemboThe acoustic target strength (TS) of Cape horse mackerel Trachurus trachurus capensis was measured in situ at 38 kHz during two surveys over the Namibian continental shelf in 1998 and 1999 using a SIMRAD EK500 echosounder/ES38D submersible split-beam transducer. Scattered... -
Dynamics of the Fishery for Galjoen Dichistius Capensis, With an Assessment of Monitoring Methods
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C. G. AttwoodThe dynamics of the fishery for galjoen Dichistius capensis were investigated at four sites in South Africa from 1987 to 2000. At three sites, which were protected from fishing, Koppie Alleen, Lekkerwater (both in the De Hoop Marine Protected Area)... -
A Statistical Model for Stock Assessment of Southern Bluefin Tuna with Temporal Changes in Selectivity
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D. S. Butterworth J. N. Ianelli R. HilbornAssessment of the status of southern bluefin tuna (SBT) by Australia and Japan has used a method (ADAPT) that imposes a number of structural restrictions, and is similar to methods used for a number of stocks world-wide. A flexible method... -
Longshore Movements of Adult Male Jasus Lalandii: Evidence from Long-term Tag Recaptures
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L. J. Atkinson G. M. BranchLarge-scale longshore movements (>10 km) of adult male Jasus lalandii (>70 mm carapace length) were examined on the west coast of South Africa using tag-recapture information from the period 1968 to 2000. The average rate of recovery of tagged rock... -
Adult Movement and Larval Dispersal of Argyrozona Argyrozona (Pisces: Sparidae) from a Temperate Marine Protected Area
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S. L. Brouwer M. H. Griffiths M. J. RobertsAdult emigration and larval dispersal of carpenter Argyrozona argyrozona from the Tsitsikamma National Park (TNP), South Africa, were investigated using mark-recapture data and Acoustic Doppler Current Profiler measurements of currents. Tagging data showed that adult carpenter were mainly resident, with... -
Population and Breeding of the Gentoo Penguin Pygoscelis Papua at Marion Island, 1994/95 – 2002/03
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R. J. M. Crawford J. Cooper M. Du Toit M. D. Greyling B. Hanise C. L. Holness D. G. Keith J. L. Nel S. L. Petersen K. Spencer D. Tshingana A. C. WolfaardtThe numbers of gentoo penguins Pygoscelis papua breeding at subantarctic Marion Island fell by 40% from 1994/95 to 2002/03, from 1 352 pairs to 806 pairs. Apart from a slight increase in 1998/99, there was a steady decrease in numbers... -
Exchange of the Wandering Albatross Diomedea Exulans Between the Prince Edward and Crozet Islands: Implications for Conservation
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J. Cooper H. WeimerskirchExchange of 61 wandering albatrosses Diomedea exulans has been recorded between the French Crozet Islands and the South African Prince Edward Islands, 1 068 km apart in the Southern Ocean. Most movements of banded birds (57) have been westwards, from... -
Ecosystem approach to fisheries management in the southern Benguela: a workshop overview
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L. J. Shannon K. L. Cochrane C. L. Moloney P. FréonA workshop was held in Cape Town in December 2002 to introduce the concept of an ecosystem approach to fisheries (EAF) management in the southern Benguela, and to examine the options for implementing an EAF in South Africa. The workshop... -
An ecosystem framework for fisheries management in the southern Benguela upwelling system
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L. J. Shannon C. L. MoloneyA "four-step framework" for applying ecosystem approaches to fisheries management in the southern Benguela is proposed. First, static ecosystem models can be used to highlight important interactions by assessing the net trophic impacts of each species on all the others... -
Distribution patterns of key fish species of the southern Benguela ecosystem: an approach combining fishery-dependent and fishery-independent data
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L. Pecquerie L. Drapeau P. Fréon J. C. Coetzee R. W. Leslie M. H. GriffithsWithin the context of an ecosystem approach for fisheries, there is a need for quantitative information on distributions of key marine species. This information is valuable input for modelling species interactions in the southern Benguela ecosystem. In the present study,... -
Quantification and representation of potential spatial interactions in the southern Benguela ecosystem
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L. Drapeau L. Pecquerie P. Fréon L. J. ShannonThis work explores the potential spatial interactions between 13 key commercial species of the southern Benguela ecosystem: sardine Sardinops sagax, anchovy Engraulis encrasicolus, round herring Etrumeus whiteheadi, horse mackerel Trachurus trachurus capensis, chub mackerel Scomber japonicus, chokka squid Loligo vulgaris... -
Review of indicators in fisheries management – a development perspective
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P. Degnbol A. JarreA review of indicators for an ecosystem approach to fisheries management is presented, focusing on multispecies fisheries and limited resources for assessments and implementation, as often is the case in developing countries. Emphasizing the need to link indicators to management... -
Biogeographic patterns in rocky intertidal communities in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: KJ Sink GM Branch JM HarrisOn the east coast of southern Africa, marine biogeographic boundaries have previously been unresolved. This paper analyses large-scale patterns of community structure of rocky intertidal shores along the whole of the KwaZulu-Natal coast, based on abundance data covering 220 macroalgal... -
Alternate explanations of the dispersal pattern of galjoen Dichistius capensis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CG Attwood PD CowleyThe movement behaviour of galjoen Dichistius capensis (>250mm total length) was studied by using a tag and recapture technique. A total of 25 191 galjoen was tagged at four sites in South Africa. Three of the sites were in fully... -
Foraging of a coastal seabird: flight patterns and movements of breeding Cape gannets Morus capensis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NJ Adams RA NavarroCape gannets Morus capensis are predatory seabirds in the coastal waters of southern Africa where they feed on commercially important fish species. Using a combination of intensive monitoring at nest sites, tracking of radio-tagged birds and diet sampling, we determined... -
Oiled and injured African penguins Spheniscus demersus and other seabirds admitted for rehabilitation in the Western Cape, South Africa, 2001 and 2002
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NJ Parsons LG UnderhillFollowing the Treasure oil spill incident in 2000 in which 19 000 African penguins Spheniscus demersus were oiled, there were no large spills in either 2001 or 2002. In spite of this, the Southern African Foundation for the Conservation of... -
Preliminary documentation and assessment of fish diversity in sub-Saharan African estuaries
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AK WhitfieldLists of indigenous fish species sampled in cool-temperate, warm-temperate, subtropical and tropical estuaries in sub-Saharan Africa were compiled from both published and unpublished data. Comparisons were conducted at the species and family level between the fish assemblages recorded in the... -
Interpreting behavioural data from Radio-Acoustic Positioning Telemetry (RAPT) systems
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PR Rigby Y Andrade RK O'DorTo detect behavioural patterns of individually tagged squid Loligo vulgaris reynaudii in a Radio-Acoustic Positioning Telemetry (RAPT) buoy array, trajectories reflecting the four dimensions of latitude, longitude, depth and time were plotted from data collected during field experiments in South... -
The taxonomic status of common dolphins Delphinus spp. in South African waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Samaai PB Best MJ GibbonsAside from gender differences, a principal components analysis of skull measurements of 72 adult common dolphins from South Africa failed to distinguish more than one form of Delphinus. Plots of rostral length against zygomatic width indicated most could be referred... -
Bayesian analysis of allozyme markers indicates a single genetic population of kingklip Genypterus capensis off South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: WS Grant RW LeslieKingklip Genypterus capensis inhabit deep continental shelf and slope waters off southern Africa and are now largely harvested as a bycatch in trawl and longline fisheries for Cape hakes Merluccius spp. Regional differences in growth, vertebral count and otolith morphology... -
Do dart tags suppress growth of dusky kob Argyrosomus japonicus?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MH Griffiths CG AttwoodGrowth rates of dusky kob Argyrosomus japonicus calculated from mark-recapture and otolith-reading methods were compared. Mark-recapture data showed that A. japonicus are resident in an area between the Breede River Estuary and Cape Agulhas on the south-east coast of South... -
Seabirds in the diet of Cape fur seals Arctocephalus pusillus pusillus at three mainland breeding colonies in Namibia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Mecenero SP Kirkman J-P RouxPredation by Cape fur seals Arctocephalus pusillus pusillus on seabirds has previously been attributed to a few individuals, mainly males. Scat samples were collected at three mainland breeding colonies of seals in Namibia to determine the extent of seabird predation... -
A symbiotic shell-encrusting bryozoan provides subtidal whelks with chemical defence against rock lobsters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CA Gray CD McQuaid MT Davies-ColemanThe subtidal whelk Burnupena papyracea co-occurs with a voracious predator, the rock lobster Jasus lalandii, in situations where other potential prey are largely eliminated. The survival of B. papyracea has been ascribed to a symbiotic bryozoan, Alcyonidium nodosum, which characteristically... -
Food habits of some deep-sea fish off South Africa's west coast. 2. Eels and spiny eels (Anguilliformes and Notacanthiformes)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ME AndersonThe food habits of five species of eels and one species of spiny eel collected from the upper continental slope off the Cape west coast and Agulhas Bank, South Africa, are described. All a re embers of a defined demersal... -
Maintenance mechanisms of plankton populations in frontal zones in the Benguela and Angola Current systems: a preface
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: HM Verheye W EkauThis preface provides the background to, and synthesis of research findings from, a set of environmental research-driven cruises off southern Angola, Namibia and South Africa during February–March 2002, under the auspices the BENguela Environment Fisheries Interaction and Training (BENEFIT) Programme... -
Life strategies, energetics and growth characteristics of Calanoides carinatus (Copepoda) in the Angola-Benguela frontal region
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: HM Verheye W Hagen H Auel W Ekau N Loick I Rheenen P Wencke S JonesRates of daily egg production, moulting and egg hatching success, as well as total lipid content and composition of Calanoides carinatus, were measured in the region of the southern Angola Curre nt SAC), the Angola-Benguela Front (ABF) and the coastal... -
Metabolic adaptations and reduced respiration of the copepod Calanoides carinatus during diapause at depth in the Angola-Benguela Front and northern Benguela upwelling regions
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: H Auel W Hagen W Ekau HM VerheyeStage C5 copepodids and adult females of the herbivorous copepod Calanoides carinatus were sampled in the Angola-Benguela frontal region and northern Benguela upwelling area off Namibia in February–March 2002, using a multiple opening/closing net system. Respiration rates of C5s collected... -
Reproductive biology and growth of the yellowbelly rockcod Epinephelus marginatus (Serranidae) from South-East Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ST FennessyInvestigation of the reproductive biology and growth of the yellowbelly rockcod Epinephelus marginatus from South-East Africa confirms that the species is a monandric protogynous hermaphrodite, i.e. males are derived from females, probably as a result of environmental or social cues... -
Spatial description of hake-directed fishing activity off the west coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TP Fairweather AJ Booth WHH Sauer RW LeslieHistorically, the two species of Cape hakes Merluccius capensis and M. paradoxus off South Africa were commercially exploited exclusively by demersal trawling. In 1994, hake-directed demersal longline was introduced on an experimental basis, and in 1998 was initiated as a... -
Diet of Cape fur seals Arctocephalus pusillus pusillus at three mainland breeding colonies in Namibia. 1. Spatial variation
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Mecenero J-P Roux LG Underhill MN BesterThe diet composition of Cape fur seals Arctocephalus pusillus pusillus was investigated from three breeding colonies in Namibia between January 1994 and April 2002 using scat analysis. Otolith numbers were corrected for those lost during digestion before determining the percentage... -
Diet of Cape fur seals Arctocephalus pusillus pusillus at three mainland breeding colonies in Namibia. 2. Temporal variation
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Mecenero J-P Roux LG Underhill SP KirkmanScat analysis was used to assess temporal variability in the diet composition of Cape fur seals Arctocephalus pusillus pusillus from three breeding colonies in Namibia (January 1994 to April 2002). The diet displayed significant inter- and intra-annual variation in composition... -
How can science contribute to an ecosystem approach to pelagic, demersal and rock lobster fisheries in South Africa?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LJ Shannon PM Cury D Nel CD Van Der Lingen RW Leslie SL Brouwer AC Cockcroft L HutchingsSouth Africa is committed to moving towards an Ecosystem Approach to Fisheries (EAF) and has laid the foundations for this using a three-pronged approach: through a project (EAF Feasibility Study) under the Benguela Current Large Marine Ecosystem Programme; through a... -
Isolation and characterisation of photoactive haemolytic toxin from Heterocapsa circularisquama
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: Y Miyazaki T Iwashita K Yamaguchi T Oda Y Matsuyama T HonjoRed tides of Heterocapsa circularisquama, identified as a new species of dinoflagellate a few years ago, have frequently caused mass mortality of several species of bivalve in Japan, whereas no harmful effects on fish have been reported so far. We... -
A review of the potential role of tumour-promoting compounds produced by Lyngbya majuscula in marine turtle fibropapillomatosis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Arthur G Shaw C Limpus J UdyHarmful algal blooms (HABs) have increased in abundance and severity in recent decades. Whereas the implications for human impacts and intoxication resulting from blooms have been extensively studied, the ecological implications of these microalgae are less well understood. Many HAB... -
Towards the declaration of a large marine protected area: a subtidal ichthyofaunal survey of the Pondoland coast in the Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BQ Mann L Celliers ST Fennessy S Bailey AD WoodA subtidal marine ichthyofaunal survey was carried out on shallow reefs (1–30m deep) in the Pondoland region between the Mtamvuna River and Port St Johns in the Eastern Cape, South Africa. The purpose of this survey was to provide the... -
Comparison of assemblages and some life-history traits of seabirds in the Humboldt and Benguela systems
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJM Crawford E Goya J-P Roux CB ZavalagaThere are 21 and 15 species of seabirds that breed in the Humboldt and Benguela upwelling systems respectively. Only two species of gull are common to both systems, one as an endemic subspecies to the Benguela system. Eleven species and... -
Geomorphological and managerial implications of fish trapping in the Kosi Bay Estuary, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AN Green GG Garland R UkenThe tidal basin of the Kosi Bay lagoonal-lacustrine complex is dominated by fish traps that line the intertidal and subtidal environments. These have been considered significant sediment sinks, responsible for transformation of parts of the system from subtidal and intertidal... -
A knowledge base for management of the capital-intensive fishery for small pelagic fish off South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TP Fairweather M Hara CD van der Lingen J Raakjær LJ Shannon GG Louw P Degnbol RJM CrawfordAs a contribution to South Africa's move towards an ecosystem approach to fisheries management, this study explores the existence of common perceptions about South Africa's pelagic fishery between resource users and scientists. It represents a collaborative research effort of social... -
Impact of predation by Cape fur seals Arctocephalus pusillus pusillus on Cape gannets Morus capensis at Malgas Island, Western Cape, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AB Makhado RJM Crawford LG UnderhillCape fur seals Arctocephalus pusillus pusillus were estimated to kill some 6 000 Cape gannet Morus capensis fledglings around Malgas Island in the 2000/01 breeding season, 11 000 in 2003/04 and 10 000 in 2005/06. This amounted to about 29%,... -
Buoyancy-stirring interactions in a subtropical embayment: a synthesis of measurements and model simulations in Maputo Bay, Mozambique
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JD Lencart e Silva --- , UK JH Simpson --- , UK AM Hoguane --- School of Marine and Coastal Sciences, Mozambique J-L Harcourt-Baldwin --- Department of Oceanography, South AfricaMaputo Bay, on the coast of Mozambique, is a tidally energetic, subtropical embayment in a region subjected to strong seasonal rainfall. Data from moored current meters, tide gauges and monthly bay-wide surveys were used to characterise the evolution of the... -
A simple method for rapid estimation of Ecklonia maxima and Laminaria pallida biomass using floating surface quadrats
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MD Rothman --- Department of Agriculture, South Africa RJ Anderson --- Department of Agriculture, South Africa JJ Bolton --- Department of Botany, South Africa CJT Boothroyd --- Department of Agriculture, South Africa FA Kemp --- Department of Agriculture, South AfricaIn South Africa two species of kelp, Ecklonia maxima and Laminaria pallida, occur in quantities sufficient for commercial use. Currently, the former species is harvested in large quantities (about 5 000 tonnes wet weight per year) as abalone feed. In... -
Broad-scale distribution patterns of sardine and their predators in relation to remotely sensed environmental conditions during the KwaZulu-Natal sardine run
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SH O’Donoghue --- School of Biological and Conservation Sciences, South Africa L Drapeau --- , France VM Peddemors --- School of Biological and Conservation Sciences, South AfricaThe annual movement of South African sardine Sardinops sagax up the east coast of South Africa, known as the ‘sardine run’, was investigated using data from aerial surveys for the period 1988–2005 and compared with remotely sensed sea surface temperature... -
The KwaZulu-Natal sardine run: shoal distribution in relation to nearshore environmental conditions, 1997–2007
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SH O’Donoghue --- School of Biological and Conservation Sciences, South Africa L Drapeau --- , France SFJ Dudley --- , South Africa VM Peddemors --- School of Biological and Conservation Sciences, South AfricaThe nearshore presence of sardine Sardinops sagax on the KwaZulu-Natal (KZN) coast was investi-gated using sightings data collected by the KZN Sharks Board from 1997 to 2007. The spatio-temporal distribution of sardine was described in relation to that of their... -
Abundance and distribution of avian and marine mammal predators of sardine observed during the 2005 KwaZulu-Natal sardine run survey
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SH O’Donoghue --- School of Biological and Conservation Sciences, South Africa PA Whittington --- Department of Zoology, PO Box 77000, South Africa BM Dyer --- Oceans and Coasts, Department of Environmental Affairs, South Africa VM Peddemors --- School of Biological and Conservation Sciences, South AfricaOpportunistic observations to determine the relative abundance and distribution of marine mammal and seabird predators of sardine Sardinops sagax were carried out during a dedicated multidisciplinary research survey off the South African east coast in June and July of 2005... -
Assessment and management of Cape horse mackerel Trachurus capensis off Namibia based on a fleet-disaggregated age-structured production model
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Kirchner --- Ministry of Fisheries and Marine Resources, Namibia G Bauleth-D’Almeida --- Ministry of Fisheries and Marine Resources, Namibia MR Wilhelm --- Ministry of Fisheries and Marine Resources, NamibiaThe Cape horse mackerel stock off Namibia is assessed using a fleet-disaggregated age-structured production model including historical International Commission for the Southeast Atlantic Fisheries (ICSEAF) and current data. Data from acoustic biomass surveys, on commercial catch per unit effort and... -
Feeding and ecomorphology of seven flatfish species in the North-North-West Aegean Sea, Greece
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PK Karachle --- Laboratory of Ichthyology, Department of Zoology, Greece KI StergiouThe diet composition and possible relationships between mouth area and intestine length with feeding were investigated for seven flatfish species in the North-North-West Aegean Sea. Samples were obtained from commercial fisheries (trawls and gillnets) on a seasonal basis, and a... -
An alternative method for estimating the status of resident reef fish stocks, based on differential fishing effort across a marine reserve boundary
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Götz --- Elwandle Node, South Africa SE Kerwath --- Branch Fisheries, Department of Agriculture, South Africa CG Attwood --- Marine Research Institute, Zoology Department, South Africa WHH Sauer --- Department of Ichthyology and Fisheries Science, South AfricaThe stock status of roman Chrysoblephus laticeps was estimated in the Goukamma, a temperate South African marine protected area (MPA). Standardised catch per unit effort (CPUE) from a controlled angling survey on both sides of the MPA border was employed... -
Distribution and movement of scalloped hammerhead Sphryna lewini and smooth hammerhead Sphyrna zygaena sharks along the east coast of southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: KM Diemer --- Great Lakes Institute of Environmental Research, Canada BQ Mann --- , South Africa NE Hussey --- Great Lakes Institute of Environmental Research, CanadaKnowledge of population distribution and movement is crucial for the conservation and management of shark species occurring in coastal waters. From 1984 to 2009, 641 scalloped hammerheads Sphyrna lewini, 1 342 smooth hammerheads Sphyrna zygaena and 1 352 unspecified hammerheads... -
Population size of neonate and juvenile dusky sharks Carcharhinus obscurus in the Port of Ngqura, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ML Dicken --- Department of Development Studies, School of Economics, Development and Tourism, South AfricaIdentifying nearshore waters that serve as important habitats for neonate and juvenile sharks is crucial for effective fisheries management. This study examined the abundance of neonate and juvenile dusky sharks Carcharhinus obscurus within the Port of Ngqura, on the south-east... -
Phytoplankton production and adaptation in the vicinity of Pemba and Zanzibar islands, Tanzania
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Barlow --- , South Africa T Lamont --- , South Africa M Kyewalyanga --- , Tanzania H Sessions --- Oceans and Coasts, Department of Environmental Affairs, South Africa M van den Berg --- Oceans and Coasts, Department of Environmental Affairs, South Africa F Duncan --- , South AfricaPhytoplankton production and physiology were investigated at six selected locations during a research cruise in early October 2007 in Tanzanian coastal waters. The dataset included photosynthesis– irradiance and active fluorescence parameters, phytoplankton absorption coefficients, and pigment concentrations. Primary production was... -
Investigations into the diet and feeding ecology of the bearded goby Sufflogobius bibarbatus off Namibia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RB Cedras --- Department of Biodiversity and Conservation Biology, South Africa A-GV Salvanes --- Department of Biology, Norway MJ Gibbons --- Department of Biodiversity and Conservation Biology, South AfricaThe bearded goby Sufflogobius bibarbatus has come to replace sardine Sardinops sagax in the diets of many top predators within the marine environment off Namibia, and it is playing a key role within the region's foodweb. Previously published information on... -
The reproductive style of Diplodus capensis (Sparidae) in southern Angola: rudimentary hermaphroditism or partial protandry?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TJ Richardson --- Department of Ichthyology and Fisheries Science, PO Box 94, South Africa WM Potts --- Department of Ichthyology and Fisheries Science, PO Box 94, South Africa WHH Sauer --- Department of Ichthyology and Fisheries Science, PO Box 94, South AfricaThe reproductive style of Diplodus capensis was examined in an unexploited coastal area in southern Angola. The mean length of females was significantly greater than that of males and, although not significant, females dominated the older age classes. The overall... -
Observations of individual humpback whales utilising multiple migratory destinations in the south-western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PJ Ersts --- Center for Biodiversity and Conservation, USA C Pomilla --- Sackler Institute for Comparative Genomics, USA J Kiszka --- Observatoire des Mammifères Marins, France S Cerchio --- Sackler Institute for Comparative Genomics, USA HC Rosenbaum --- Center for Biodiversity and Conservation, USA M Vély --- , France Y Razafindrakoto --- Madagascar Country Program, Madagascar JA Loo --- Sackler Institute for Comparative Genomics, USA MS Leslie --- Sackler Institute for Comparative Genomics, USA M Avolio --- Barnard College, USAMovements of humpback whales Megaptera novaeangliae among breeding regions within the southwestern Indian Ocean are poorly understood. Understanding the relationships among breeding regions is critical for effective conservation and management strategies. Through systematic comparisons of molecular genotypes and both systematic... -
Trends and interventions in large whale entanglement along the South African coast
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MA Meÿer --- Department of Environmental Affairs, South Africa PB Best --- , South Africa MD Anderson-Reade --- , South Africa G Cliff --- , South Africa SFJ Dudley --- , South Africa SP Kirkman --- Department of Environmental Affairs, South AfricaThe major causes of large whale entanglement in South Africa are static fishing gear, especially the type associated with the West Coast rock lobster Jasus lalandii industry, and large-mesh gillnets that are set off the coast of KwaZulu-Natal (KZN) to... -
Transit station or destination? Attendance patterns, movements and abundance estimate of humpback whales off west South Africa from photographic and genotypic matching
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Barendse --- , South Africa PB Best --- , South Africa M Thornton --- , South Africa SH Elwen --- , South Africa HC Rosenbaum --- , USA I Carvalho --- , USA C Pomilla --- , USA TJQ Collins --- , USA MA Meÿer --- , South Africa RH Leeney --- , UKHumpback whales Megaptera novaeangliae found off west South Africa (WSA) are known to display an atypical migration that may include temporary residency and feeding during spring and summer. At a regional scale there is uncertainty about how these whales relate... -
Migrations of humpback whales past Cape Vidal, South Africa, and an estimate of the population increase rate (1988–2002)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: KP Findlay --- Department of Oceanography, South Africa PB Best --- , South Africa MA Meÿer --- Department of Environmental Affairs, South AfricaShore-based surveys of migrating humpback whales Megaptera novaeangliae were undertaken from Cape Vidal, northern KwaZulu-Natal, South Africa, each year between 1988 and 1991, and in 2002. Daily observations of migrating whale groups were carried out from an approx. 60 m-high... -
Population dynamics of southern elephant seals: a synthesis of three decades of demographic research at Marion Island
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PA Pistorius --- Department of Zoology, South Africa PJN de Bruyn --- Department of Zoology and Entomology, University of Pretoria, South Africa MN Bester --- Department of Zoology and Entomology, University of Pretoria, South AfricaSouthern elephant seal Mirounga leonina numbers declined precipitously throughout most of their circumpolar distribution since the 1950s. A long-term intensive demographic programme was initiated in 1983 on the relatively small population of southern elephant seals at sub-Antarctic Marion Island in... -
The seaweeds of Angola: the transition between tropical and temperate marine floras on the west coast of southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJ Anderson --- Branch: Fisheries, Department of Agriculture, Forestry and Fisheries, South Africa JJ Bolton --- Botany Department and Marine Research Institute, South Africa AJ Smit --- School of Biological and Conservation Sciences, South Africa D da Silva Neto --- Departamento de Ambiente do Instituto Nacional de Investigação Pesqueira (INIP), AngolaThe seaweed flora of Angola is relatively poorly known. Most of the 124 records listed for the country come from a 1974 British Natural History Museum expedition to the central and southern parts of that country. Previous biogeographic studies treated... -
A characterisation of the paddle-ski fishery in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BQ Mann --- , South Africa P Pradervand --- , South Africa JQ Maggs --- , South Africa S Wintner --- , South AfricaThe KwaZulu-Natal (KZN) paddle-ski fishery in South Africa consists mainly of light-weight fishing kayaks operated by a single fisher in the marine nearshore environment. The social, economic, management and fisheries parameters of this sector were investigated during the period December... -
South African kelp moving eastwards: the discovery of Ecklonia maxima (Osbeck) Papenfuss at De Hoop Nature Reserve on the south coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JJ Bolton --- Botany Department and Marine Research Institute, South Africa RJ Anderson --- Botany Department and Marine Research Institute, South Africa AJ Smit --- School of Biological and Conservation Sciences, Faculty of Science, South Africa MD Rothman --- Botany Department and Marine Research Institute, South AfricaHistorical and recent evidence is documented to demonstrate that the eastern limit of the major kelp-bed forming seaweed Ecklonia maxima has moved c. 73 km eastward along the south coast of South Africa since 2006, after remaining unchanged for almost... -
Gonadal cycle of the dwarf oyster Ostreola stentina from the south of the Gulf of Hammamet on the eastern coast of Tunisia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: I Ben Salah --- Laboratoire de Biodiversité et Ecosystèmes Aquatiques, Tunisie A Bouain --- Laboratoire de Biodiversité et Ecosystèmes Aquatiques, Tunisie L Neifar --- Laboratoire de Biodiversité et Ecosystèmes Aquatiques, TunisieThe reproductive cycle of the dwarf oyster Ostreola stentina (Payraudeau 1826) at Monastir in the south of the Gulf of Hammamet on the east coast of Tunisia was studied using condition indices and histological techniques. The species was shown to... -
Variability in estuarine water temperature gradients and influence on the distribution of zooplankton: a biogeographical perspective
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TH Wooldridge --- Department of Zoology, South Africa SHP Deyzel --- , South AfricaStructure and variability of water temperature gradients and potential influence on distribution of two tropical zooplankters (the mysid Mesopodopsis africana and the copepod Acartia natalensis) and their temperate congenerics (M. wooldridgei and A. longipatella) was investigated over a 10-year period... -
St Helena Bay (southern Benguela) then and now: muted climate signals, large human impact
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Hutchings --- Department of Environmental Affairs, South Africa A Jarre --- Marine Research (MA-RE) Institute, South Africa T Lamont --- Department of Environmental Affairs, South Africa M van den Berg --- Department of Environmental Affairs, South Africa SP Kirkman --- Department of Environmental Affairs, South AfricaThe development of suitable reference states for ecosystem-based management requires documentation of changes in structure and functioning of marine ecosystems, including assessment of the relative importance of bottom-up and top-down processes as drivers of change. We used monitoring data available... -
A hard-knock life: the foraging ecology of Cape cormorants amidst shifting prey resources and industrial fishing pressure
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MH Hamann --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South Africa D Grémillet --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South Africa PG Ryan --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South Africa F Bonadonna --- , France CD van der Lingen --- Department of Agriculture, Forestry and Fisheries, South Africa L Pichegru --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South AfricaOnce one of the most numerous seabirds of the Benguela upwelling system, the population of Cape cormorants Phalacrocorax capensis has decreased by 60% in the past three decades and the species is listed as Near Threatened. Declines in prey availability... -
Fishing methods for sustainable shrimp fisheries in the Canary Islands (North-West Africa)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Arrasate-López --- , Spain VM Tuset --- , Spain JI Santana --- , Spain A García-Mederos --- , Spain O Ayza --- , Spain JA González --- , SpainDuring the past 20 years, experimental cruises have been conducted around the Canary Islands (North-West Africa) to investigate the biodiversity of the deep-sea ecosystem and to explore new fisheries resources. Although pandalid shrimps were shown to be very abundant in... -
Patterns of endemicity and range restriction among southern African coastal marine invertebrates
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJ Scott --- Marine Biology Research Centre, Zoology Department, South Africa CL Griffiths --- Marine Biology Research Centre, Zoology Department, South Africa TB Robinson --- Department of Botany and Zoology, South AfricaSouthern Africa supports a rich marine biota of 12 734 currently described marine species. Although the distribution and overall species-richness patterns of several component taxa are well documented, studies considering range sizes are absent. This study considers range size frequencies... -
Diversity of decapod crustaceans at the interface of unconsolidated seabed areas and rocky shores in tropical/subtropical Brazil
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Fransozo --- Departamento de Zoologia, Instituto de Biociências, Brazil M Furlan --- Departamento de Zoologia, Instituto de Biociências, Brazil V Fransozo --- , Brazil G Bertini --- , Brazil RC da Costa --- Departamento de Ciências Biológicas, Faculdade de Ciências, Brazil LC Fernandes-Góes --- , BrazilThe decapod crustacean assemblages from unconsolidated seabed areas located near rocky shores in the Ubatuba region on the south-east coast of Brazil were analysed by investigating the abundance, richness, diversity and dominance of species. The relationships of the sediment and... -
Evidence of hybridisation within the genus Chrysoblephus and conserved nuclear sequences of South African sparids (Teleostei: Sparidae)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S von der Heyden --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa A Connell --- , South AfricaSeveral hybridisation events have been recorded in marine fish, yet there is little information for southern African species. Here we present evidence for hybridisation within the genus Chrysoblephus (Sparidae), by analysing a fish caught off KwaZulu-Natal, off the east coast... -
From biomass mining to sustainable fishing — using abundance and size to define a spatial management framework for deep-water lobster
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JC Groeneveld --- , South Africa SP Kirkman --- Department of Environmental Affairs, South Africa M Boucher --- Marine Biology Research Institute, Department of Zoology, South Africa D Yemane --- Branch: Fisheries, Department of Agriculture, South AfricaBased on the assumption that depleted stocks would have recovered during a six-year layoff from fishing, trapping for deep-water spiny lobster Palinurus delagoae and slipper lobster Scyllarides elisabethae off eastern South Africa resumed in 2004 until 2007. A generalised linear... -
Upwelling and ocean structures off Algoa Bay and the south-east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: WS Goschen --- South African Environmental Observation Network (SAEON), South Africa EH Schumann --- Department of Geosciences, South Africa KS Bernard --- South African Environmental Observation Network (SAEON), South Africa SE Bailey --- South African Environmental Observation Network (SAEON), South Africa SHP Deyzel --- South African Environmental Observation Network (SAEON), South AfricaAs the Agulhas Current flows along the south-east coast of South Africa, a number of processes operate that bring cold, deep water up onto the narrow shelf. As a consequence, upwelling along the coastline is enhanced farther southward and downstream... -
Thirty years of monitoring traditional fish trap catches at Kosi Bay, KwaZulu-Natal, South Africa, and management implications
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Kyle --- , South AfricaThe catches of the traditional fish traps in the Kosi Bay estuarine lakes were monitored over a 30-year period from 1981 to 2010. Monitoring data were used to provide estimates of, and insights into, catch size and species composition as... -
A review of the Oceanographic Research Institute's Cooperative Fish Tagging Project: 27 years down the line
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SW Dunlop --- , South Africa BQ Mann --- , South Africa RP van der Elst --- , South AfricaThe Oceanographic Research Institute's (ORI) Cooperative Fish Tagging Project was initiated in 1984 and is one of the most enduring and successful environmental projects of its kind in South Africa. By the end of 2011, 5 130 anglers had joined... -
Evaluation of an underwater biopsy probe for collecting tissue samples from bull sharks Carcharhinus leucas
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Daly --- Department of Zoology and Entomology, South Africa MJ Smale --- , South AfricaThis study evaluated the use of a novel underwater biopsy probe designed to collect muscle and dermal tissue samples from large (170–220 cm total length), free-swimming bull sharks Carcharhinus leucas. The biopsy probe tissue retention rate was 87% after 23... -
Assessment of the abundance and distribution of burrowing sandprawns and mudprawns (Callichirus and Upogebia species) in Langebaan Lagoon, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P Nel --- West Coast National Park, South Africa GM Branch --- Marine Biology Research Centre, Zoology Department, South AfricaA survey of sandprawns and mudprawns was undertaken in intertidal and subtidal zones in Langebaan Lagoon, West Coast National Park, South Africa, to determine their stock status and to gain an understanding of the spatio-temporal patterns in abundance and distribution... -
High-latitude connectivity of the scleractinian coral Acropora tenuis in the south-western Indian Ocean, identified using nuclear intron and mitochondrial sequence data
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: B Chiazzari --- School of Life Sciences, South Africa A Macdonald --- School of Life Sciences, South Africa M Schleyer --- , South AfricaAll scleractinian corals in southern Africa occupy the high-latitude margins of their biogeographical range, with some straddling multiple biogeographical regions. Connectivity among these populations is essential to maintain genetic diversity, and thus their conservation value. Therefore, the aim of this... -
Reef fish display station-keeping and ranging behaviour in the Pondoland Marine Protected Area on the east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JQ Maggs --- , South Africa BQ Mann --- , South Africa PD Cowley --- , South AfricaThis study assessed the role of the Pondoland Marine Protected Area (MPA) in the Eastern Cape province of South Africa by evaluating retention versus ‘spillover’ of exploited fishery species that were tagged in a 400 km2 no-take zone of the... -
Assessing stocks in data-poor African fisheries: a case study on the white grouper Epinephelus aeneus of Mauritania
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: B Meissa --- , Mauritanie D Gascuel --- , France E Rivot --- , FranceThe lack of reliable stock assessment for numerous exploited stocks in West Africa often results from poor-quality data, high multi-specificity of captures, and the heterogeneity of exploitation methods. However, many signs of overexploitation exist, particularly for demersal resources, highlighting the... -
Science, transformation and society: a contextual analysis of South Africa’s SANCOR-managed marine and coastal research programmes
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Scott --- School of Built Environment and Development Studies, Howard College Campus, South AfricaThe paper aims to describe and analyse three research programmes over the period 1995–2011 managed by the South African Network for Coastal and Oceanic Research (SANCOR), namely the Sea and Coast programmes I and II and the Society, Ecosystems and... -
Effect of human disturbance on the behavioural responses and offspring survival of grey-headed albatrosses Thalassarche chrysostoma at Subantarctic Marion Island
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Wheeler --- Animal Demography Unit, Department of Zoology, University of Cape Town, South Africa MS de Villiers --- Animal Demography Unit, Department of Zoology, University of Cape Town, South Africa R Altwegg --- Animal Demography Unit, Department of Zoology, University of Cape Town, South AfricaNest monitoring is commonly used to gather important seabird demographic data, but monitoring itself can affect seabird behaviour and offspring survival. The effect of monitoring on grey-headed albatrosses Thalassarche chrysostoma at Subantarctic Marion Island was investigated. The behaviour of chicks... -
A bootstrap method for estimating bias and variance in statistical fisheries modelling frameworks using highly disparate datasets
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BÞ Elvarsson --- Science Institute, Iceland L Taylor --- Science Institute, Iceland VM Trenkel --- Ifremer [French Research Institute for the Exploitation of the Sea], France V Kupca --- HPC2N [High Performance Computing Center North], Umeå University, Sweden G Stefansson --- Science Institute, IcelandStatistical models of marine ecosystems use a variety of data sources to estimate parameters using composite or weighted likelihood functions with associated weighting issues and questions on how to obtain variance estimates. Regardless of the method used to obtain point... -
Pelagic fish species assemblages in the southern Benguela
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GG Louw --- Branch: Fisheries Management, Department of Agriculture, South Africa P Fréon --- CRHMT [Tropical Fish and Mediterranean Research Center], France G Huse --- Institute of Marine Research, Norway MR Lipiński --- Department of Ichthyology and Fisheries Science, South Africa JC Coetzee --- Branch: Fisheries Management, Department of Agriculture, South AfricaPatterns in the co-occurrence of small pelagic fish species within single shoals were investigated using data from 6 814 throws of commercial purse-seiners in South Africa. Assuming that the throw composition reflected the true composition of the assemblage, it was... -
Agriculture and Climate Change in Cameroon: An Assessment of Impacts and Adaptation Options
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Yong D. Ngondjeb --- , CameroonThis study aims to assess the economic impact of climate change on crop farming activities in the Sudano-Sahelian Area of Cameroon. The study uses the Ricardian model and is based on farm data generated from a survey carried out in... -
Assessing Pharmaceutical Innovation in Tunisia: An Empirical Survey on Firms' Knowledge-Capital and an Analysis of the National Sectoral Innovation System
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nejla Yacoub --- Faculty of Economics and Management Sciences, TunisiaThe objective of this research was to assess pharmaceutical innovation in Tunisia. First, we examined the national sectoral innovation system (NSIS), focusing on the objectives and instruments of the industrial and innovation policy. Second, we adopted an empirical approach based... -
On the Links between Sustainable Wellbeing and Electric Energy Consumption
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Marcel J. Castro-Sitiriche --- Department of Electrical and Computer Engineering, Puerto Rico Mandoye Ndoye --- Electrical and Computer Engineering Department, USAAccess to electric energy is one of the drivers of wellbeing and universal access to energy has recently been identified as an important goal in the international community. A data-driven analysis of electric energy consumption and subjective wellbeing indicators is... -
ICT Adoption, Capabilities Development and Innovation Processes in Argentina: An Employment Approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Marta Novick --- Under-Secretary for Technical Planning and Labor Studies, Ministry of Labor, Sebastian Rotondo --- Analyst, Employment and Business Dynamics Observatory, Under-Secretariat for Technical Planning and Labor Studies of the Ministry of Labor, Gerardo Breard --- Under-Secretary for Technical Planning and Labor Studies, Ministry of Labor,The discussion on innovation and the adoption of new information and communication technologies (ICT) and their impact on economic growth and development have flared up in the past few years. This debate has become increasingly relevant mostly in emerging countries... -
Breeding strategies for forest trees: Concepts and challenges
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: T White --- School of Forest Resources and Conservation, U.S.A.This paper describes some recent developments that affect the way forest geneticists think about breeding strategies for forest trees. The topics are grouped into several categories: (1) General Concepts; (2) Breeding Population Size; (3) Breeding Population Structure; (4) Management of... -
Guidelines for the design and management of artificial raptor perches and nest-tree stands on forestry estates in South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: G. Malan --- Department of Nature Conservation Pretoria Technikon, A.vN. Marais --- Biological Diversity Services,The aim of this paper is to provide timber growers with silvicultural guidelines for the establishment of raptor perches and nest stands on forestry estates. Rodents do extensive damage to young saplings and as an ecologically friendly alternative to rodenticides,... -
Determination of land and tree values of hybrid poplar plantations: A case study for Turkey
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Sait Engindeniz --- The University of Ege, Faculty of Agriculture, Turkey Aysen Olgun --- The University of Ege, Faculty of Agriculture, TurkeyValuation of poplar plantations is important in condemnation, taxation, loan, insurance, inheritance, and purchase-sale cases. In general, for the appraisal ofland value of poplar plantations, sales comparison and income capitalization approaches can be used. In appraisal of tree values sales... -
Influence of the origin of stem cutting, season of collection and auxin application on the vegetative propagation af African Sandalwood (Osyris lanceolata) in Tanzania
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Z. Teklehaimanot --- School of Agricultural and Forest Sciences, UK P.L. Mwang'ingo --- Tanzania Forestry Research Institute, Tanzania A.G. Mugasha --- Department of Forest Biology, Faculty of Forestry and Nature Conversation, Tanzania C.K. Ruffo --- Tanzania Tree Seed Agency, TanzaniaAn investigation into the possibility of propagating O.lanceolata through stem cutting was carried out at Tanzania Tree Seed Agency, Iringa Zone, Tanzania. The aim was to test the potential of stem cuttings in providing an alternative/supplement to the use of... -
Modelling maximum canopy conductance and transpiration in Eucalyptus grandis stands not subjected to soil water deficits
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: J. M. Campion --- , Republic of South Africa P.J. Dye --- Environmentek, CSIR, c/o Agrometeorology, Republic of South Africa M.C. Scholes --- School of Animal, Plant and Environmental Sciences, Republic of South AfricaThere is much current interest in predicting the maximum amount of water that can be transpired by Eucalyptus trees. It is possible that industrial waste water may be applied as irrigation water to eucalypts and it is important to predict... -
Spatial changes in forest cover on the KwaNibela Peninsula, St Lucia, South Africa, during the period 1937 to 2008
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: BM Corrigan --- Department of Botany and Plant Biotechnology, South Africa M Kneen --- Department of Geography, Environmental Management and Energy Studies, South Africa CJ Geldenhuys --- Department of Forest and Wood Science, South Africa B-E van Wyk --- Department of Botany and Plant Biotechnology, South AfricaThe KwaNibela Peninsula is situated in the northernmost region of Lake St Lucia in KwaZulu-Natal. It is covered by forest patches of either Sand Forest or Coastal Forest within the Maputaland Coastal Vegetation. The area and the forests are heavily... -
Performance of four-year-old Australian and Papua New Guinean Acacia species/provenances at Kongowe, Kibaha, Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: AI Kindo --- Forestry and Beekeeping Division, Tanzania MA Mndolwa --- , Tanzania E Edward --- Department of Forest Biology, Faculty of Forestry and Nature Conservation, Tanzania SAO Chamshama --- Department of Forest Biology, Faculty of Forestry and Nature Conservation, TanzaniaThis study to compare performance of three Australian–Papua New Guinean Acacia species/provenances (A. mangium, A. auriculiformis, A. crassicarpa) and A. julifera was conducted at Kongowe, Kibaha, Tanzania. Species/provenances were evaluated for survival, growth (diameter, height and volume), wood basic density... -
Effect of ectomycorrhizal fungi in the protection of Uapaca kirkiana seedlings against root pathogens in Zimbabwe
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: K Ramachela --- Department of Forest and Wood Science, South Africa JM Theron --- Department of Forest and Wood Science, South AfricaInvestigations carried out on the use of ectomycorhhizal fungi in the management of Uapaca kirkiana root diseases caused by three pathogens (Rhizoctonia solani, Phytophthora parasitica and Pseudomonas solani) revealed that different mycorrhizal fungi vary in their ability to protect roots... -
Comparison of procedures to evaluate the pathogenicity of Ceratocystisfimbriata sensu lato isolates from Eucalyptus in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: M van Wyk --- Department of Genetics, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South Africa RN Heath --- Department of Genetics, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South Africa M Tarigan --- Department of Microbiology and Plant Pathology, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South Africa M Vermeulen --- Department of Microbiology and Plant Pathology, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South Africa MJ Wingfield --- Department of Genetics, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South AfricaCeratocystis fimbriata sensu lato (s.l.) is an important pathogen of Eucalyptus. Pathogenicity of isolates has typically been evaluated by inoculating seedlings under greenhouse conditions. It is, however, not clear how accurately this reflects pathogenicity under field conditions. In this study,... -
The pulp and paper properties of Sirex noctilio infested and fire-damagedthermomechanically pulped, South African grown Pinus patula
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: M du Plessis --- , South Africa NJ le Roux --- Department of Statistics and Actuarial Science, South Africa S Gardner-Lubbe --- Department of Statistical Sciences, South Africa JPJ Swart --- Department of Forest and Wood Science, South Africa T Rypstra --- Department of Forest and Wood Science, South AfricaPinus patula is the softwood species most extensively planted in South Africa. However, large portions of these plantings are under threat from Sirex noctilio infestation and occasional forest fires. In this exploratory investigation, the effects of tree age, Sirex noctilio... -
Low genetic diversity and high genetic differentiation among severely fragmented populations of the critically endangered tree Talbotiella gentii (Fabaceae)
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: D Dompreh --- School of Biological Sciences, UK MD Swaine --- School of Biological Sciences, UK A Price --- School of Biological Sciences, UKThe genetic diversity among 17 populations (including 10 newly discovered) of Talbotiella gentii (Fabaceae, Caesalpinioideae), a rare tree species endemic to Ghana, was assessed using random amplified polymorphic DNA (RAPD). A total of 80 polymorphic bands were generated from eight... -
Air layering and its potential in propagating Uapaca kirkiana: a fruit tree from the miombo woodland, Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: PP Mwang'ingo --- , Tanzania LL Lulandala --- Faculty of Forestry and Nature Conservation, TanzaniaThe potential to propagate Uapaca kirkiana through air layering was investigated at Igumbilo forest, Tanzania. The objective was to determine the effect of time of setting air layers and use of indole-3-butyric acid (IBA) to promote rooting. Air layers were... -
The strategic importance of applied tree conservation programs to the forest industry in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: WS Dvorak --- College of Natural Resources, Department of Forestry and Environmental Resources, USABecause of anticipated adverse climatic change and resulting increases in disease and insect attacks in forest plantations in the future, forest industries must maintain broad genetic bases for adaptability and pest resistance. Since the early 1980s, the South African forest... -
Comparisons between laboratory and field results of frost tolerance of pines from the southern USA and Mesoamerica planted as exotics
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: GR Hodge --- Department of Forestry and Natural Resources, USA WS Dvorak --- Department of Forestry and Natural Resources, USA ME Tighe --- Department of Forestry and Natural Resources, USAAn artificial freezing study was conducted with 14 pine species and varieties from Mexico and Central America, and the southern and western USA. The pines chosen represented major commercial plantation species in the Southern Hemisphere such as Pinus caribaea var... -
Participatory forestry in Bangladesh: has it helped to increase the livelihoods of Sal forests-dependent people?
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: KK Islam --- Forest Policy Laboratory, Japan N Sato --- Forest Policy Laboratory, JapanThe government of Bangladesh has placed the utmost priority on participatory forestry (PF) since the 1980s, and this approach was commenced in the degraded Sal forest areas through a donor-funded project in 1989. These forest reforms aim to eliminate the... -
Development of site index curves for Pinus kesiya in the Philippines
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: RIC Lumbres --- Department of Forest Resources, Korea YJ Lee --- Department of Forest Resources, Korea YO Seo --- Department of Forest Resources, Korea FG Calora --- , PhilippinesThis study was conducted to develop a height–age growth model and site index curves for site quality evaluation of old secondary-growth stands of Pinus kesiya in the northern Philippines. The Chapman-Richards growth function was used in the guide curve method... -
Growth models based on radial increment observations for eight pine species in Angola
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Cristobal Delgado-Matas --- Faculty of Agrarian Sciences, Angola Timo Pukkala --- School of Forest Sciences, FinlandGrowth models for the Central Highlands of Angola were developed in this study for Pinus pseudostrobus Lindl., P. kesiya Royle ex Gordon, P. devoniana Lindl., P. chiapensis (Martinez) Andresen, P. elliottii Engelm., P. greggii Engelm. ex Parl., P. montezumae Lamb... -
Developing allometric equations for estimating leaf area and leaf biomass of Artocarpus chaplasha in Raghunandan Hill Reserve, Bangladesh
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Swapan Kumar Sarker --- Department of Forestry and Environmental Science, Bangladesh Niamjit Das --- Department of Forestry and Environmental Science, Bangladesh Md Qumruzzaman Chowdhury --- Department of Forestry and Environmental Science, Bangladesh Md Mohasinul Haque --- Department of Forestry and Environmental Science, BangladeshEstimation of leaf area (LA) and leaf biomass (LB) is important to understand plant physiological and carbon assimilation processes, and tree growth models. The aim of this study was to develop and compare allometric equations for predicting LA and LB... -
Overhead irrigation increased winter chilling and floral bud production in Eucalyptus nitens
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Robin AW Gardner --- Institute for Commercial Forestry Research, South Africa Isa Bertling --- Horticultural Science, School of Agricultural, Earth and Environmental Sciences, South Africa Michael J Savage --- Agro-meteorology, Soil-Plant-Atmosphere Research, School of Agricultural, Earth and Environmental Sciences, South AfricaEucalyptus nitens requires a sufficiently cold winter to produce flower buds. In areas in South Africa where E. nitens commercial plantations as well as breeding and production seed orchards are located, winter chilling is often insufficient for floral bud initiation... -
Dynamic base-age invariant site index models for Tectona grandis in peninsular India
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Vindhya P Tewari --- Institute of Wood Science and Technology, India Juan G Álvarez-González --- Unidad de Gestión Forestal Sostenible, Departamento de Ingeniería Agroforestal, Spain Klaus von Gadow --- Burckhardt Institute, GermanyData from 27 remeasured sample plots were used to evaluate dynamic base-age invariant site index models for teak (Tectona grandis) forests in Karnataka, India. The data were obtained in observational field studies covering a wide range of sites in Karnataka... -
Long-term population effect of male circumcision in generalised HIV epidemics in sub-Saharan Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Michel GarenneThis paper examines the complex relationship between male circumcision and HIV prevalence and incidence in sub-Saharan African countries that have generalised epidemics. In South Africa, the mean yearly HIV incidence and an estimate of the net reproduction rate of the... -
Uptake of voluntary counselling and testing for HIV by pregnant women in a prevention-of-mother-to-child-transmission programme at Aminu Kano Teaching Hospital, Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: HadizaS Galadanci Zubairu Iliyasu Jamilu Tukur Mariya Muktar-Yola SolomonI AdelekeMother-to-child transmission is the main mode of HIV infection among children in developing countries. In 2003, as a result of government policy, a prevention-of-mother-to-child-transmission (PMTCT) programme was introduced at Aminu Kano Teaching Hospital in Nigeria. The aim of this study... -
Migration, pastoralists, HIV infection and access to care: the nomadic Fulani of northern Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Abdulrazaq Garba Habib Jibril JumareThe burden of HIV infection among the nomadic Fulani of northern Nigeria is unknown. Migration — a way of life for this population — is known to increase the rate of HIV transmission and may limit individuals' access to treatment... -
Wellness programme and health policy development at a large faith-based organisation in Khayelitsha, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: ElizabethD ArendThis paper presents a case study of wellness programme and health policy development based on an HIV/AIDS organisation's Khayelitsha site in the Western Cape Province, South Africa. The study examines the different challenges that the organisation faces in relation to... -
Disclosure of HIV status: experiences of patients enrolled in an integrated TB and HAART pilot programme in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: HirutT Gebrekristos MarkN Lurie Nkosinathi Mthethwa Quarraisha Abdool KarimThe convergence between the tuberculosis (TB) and HIV epidemics has led to studies investigating strategies for integrated HIV and TB care. We present the experiences of a cohort of 17 patients enrolled in the first integrated TB and HIV treatment... -
Appreciative inquiry into lifeskills-based HIV/AIDS education in South African schools
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sumeshni Govender Stephen EdwardsWith a steady rise in the prevalence of HIV and AIDS throughout the world it has become vital for programme implementers at all levels to ensure that all HIV intervention programmes are effectively put into practice. The present research used... -
Sex differentials in the use of centres for voluntary counselling and testing for HIV in Cameroon
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Emmanuel Ngwakongnwi Hude QuanPart of the strategic response to HIV in Cameroon, West Africa, has been the institutionalisation of voluntary testing and counselling (VCT) for HIV services across the country. The study addresses the general level of awareness and use of VCT centres... -
Facilitating health-enabling social contexts for youth: qualitative evaluation of a family-based HIV-prevention pilot programme
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Zubeda Paruk Inge Petersen Arvin BhanaThis paper reports on a post-intervention qualitative evaluation of the pilot intervention of the AmaQhawe Family Project, in South Africa, which is a cartoon-based, manualised intervention delivered to multiple family groups over 10 sessions, aimed at preventing HIV in adolescents... -
Ethnographic experiences of HIV-positive nurses in managing stigma at a clinic in rural Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Margaret Kyakuwa --- Amsterdam School for Social Science Research, The NetherlandsThis paper explores the workplace experiences of HIV-positive nurses and their attempts to manage HIV/AIDS stigma. An HIV diagnosis can have a major impact on an individual's psychological and emotional wellbeing. Moreover, caring for those suffering from chronic HIV-related illnesses... -
The relation of HIV testing and treatment to identity formation in Zambia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Emily Frank --- Anthropology Department, United StatesWhy would many Zambians be reluctant to access lifesaving antiretroviral treatment? Does the process of accessing an HIV test in Zambia promote an identity that can change individuals' livelihood strategies? What happens to individuals when people access treatment? Voluntary testing... -
Experiences of collaboration, coordination and efficiency in the delivery of HIV/AIDS home-based care in Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: John Mazzeo --- Department of Anthropology, United States Loveness Makonese --- Department of Sociology and Anthropology, South AfricaThe difficulties of achieving successful collaboration between stakeholders can lead to uncoordinated and fragmented outcomes for HIV/AIDS programming, which has consequences for the immediate health and livelihood security of the intended beneficiaries. This article examines the collaboration between local, national... -
Conservation biology and management of a critically endangered cyprinid, the Twee River redfin, Barbus erubescens (Teleostei: Cyprinidae), of the Cape Floristic Region, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ND Impson MS Marriott IR Bills PH SkeltonThe Twee River redfin Barbus erubescens is a critically endangered small cyprinid endemic to the Twee River System, a subcatchment of the Olifants-Doring River System of South Africa. It is currently the most threatened freshwater fish in both the Cape... -
Composition, abundance, distribution and seasonality of larval fishes in the Mngazi Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: P Pattrick NA Strydom TH WooldridgeWe investigated the larval fish assemblage in the intermittently-open Mngazi Estuary, in the subtropical/warm-temperate biogeographic boundary region of South Africa. Larvae were collected by means of boat-based plankton tows in summer and winter for a period of three years between... -
Reproductive and feeding biology of the endangered fiery redfin, Pseudobarbus phlegethon (Barnard 1938) (Teleostei: Cyprinidae), in the Noordhoeks River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Whitehead OLF Weyl IR BillsThe aim of this study was to contribute to the knowledge on the reproductive and feeding biology of the endangered Pseudobarbus phlegethon (Barnard 1938) in the Olifants River system, by providing estimates of its maturity, reproductive periodicity and the diet... -
Does reservoir trophic status influence the feeding and growth of the sharptooth catfish, Clarias gariepinus (Teleostei: Clariidae)?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: WM Potts T Hecht TG AndrewThe diet and growth of sharptooth catfish, Clarias gariepinus, in an oligotrophic system (Kat River Reservoir, Eastern Cape, South Africa) were compared to those in a eutrophic system (Laing Reservoir, Eastern Cape) to determine if the trophic status of a... -
The breeding period of the ocellated spiny eel Mastacembelus vanderwaali (Teleostei: Mastacembelidae) in the Batoka Gorge, Zambezi River
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JL MinshullIn late October 1990, Mastacembelus vanderwaali was found to be breeding in the Zambezi River in the Batoka Gorge in protected areas along a rocky shoreline during the low water period prior to the start of the November rains. Two... -
Conserving the fishes of the Twee River, Western Cape, South Africa: revisiting the issues
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SM Marr LME Sutcliffe JA Day CL Griffiths PH SkeltonThe Twee River catchment contains two endemic fish species — the Twee River redfin and the Twee River galaxias — which are threatened by water abstraction, habitat degradation, and the presence of introduced fishes. Fyke nets were used to determine... -
Rapid biological assessment of the fishery potential of Xonxa Dam, near Queenstown, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TJ Richardson AJ Booth OLF WeylRapid biological assessments have been proposed as the most cost-effective approach to identify suitable target species and to set initial catch and fishing effort levels for new fisheries. Xonxa Dam, a turbid irrigation dam situated in the White Kei catchment,... -
Gonad development in the freshwater oyster Etheria elliptica (Bivalvia: Etheriidae) in northern Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Ampofo-Yeboah --- Department of Renewable Natural Resources, M Owusu-Frimpong --- Department of Applied Biology, K Yankson --- School of Biological Sciences,Gonad development in the freshwater oyster Etheria elliptica from the White Volta River at Nawuni and the Oti River at Sabari (northern Ghana) was studied by histological examination from March to July 1999. Five developmental stages—developing, ripening, ripened, spawning and... -
The importance of estuarine-derived carbon for the nearshore marine environment: studies on two contrasting South African estuaries
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PD Vorwerk --- Department of Zoology and Entomology, South Africa PW Froneman --- Department of Zoology and Entomology, South AfricaThe food web structure within and adjacent to two permanently open estuaries with contrasting flow regimes along the south-eastern coast of South Africa was investigated employing stable isotope analysis. The Kariega Estuary is considered a freshwater-deprived system, while the Great... -
Zooplankton composition, abundance and distribution in selected south and west coast estuaries in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PH Montoya-Maya --- Department of Ichthyology and Fisheries Science, South Africa NA Strydom --- , South AfricaIn order to contribute to the understanding of estuarine zooplankton dynamics in cool-temperate systems, zooplankton samples were collected by plankton tows, using two modified WP2 nets, in nine estuaries on the south and west coasts of South Africa, seasonally between... -
Spatial and temporal variation in the macroinvertebrate community structure of the lower Elands River, Mpumalanga, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Ferreira --- Centre for Aquatic Research, Department of Zoology, South Africa V Wepener --- Centre for Aquatic Research, Department of Zoology, South Africa JHJ van Vuren --- Centre for Aquatic Research, Department of Zoology, South AfricaThe Elands River, Mpumalanga, is an ecologically sensitive river that is constantly threatened by a variety of human activities. The influence of a pulp and paper mill on the river's macroinvertebrate assemblages was studied in March and June 2005, representing... -
A benthic survey of the rocky reefs off Pondoland, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Celliers BQ Mann AHH Macdonald MH SchleyerA subtidal marine biodiversity survey was carried out on shallow reefs (−1m to −30m) in the proclaimed Pondoland Marine Protected Area between Port Edward and Port St Johns, South Africa. A total of 26 benthic reef transects was undertaken involving... -
Movement pattern and home range of Roman Chrysoblephus laticeps
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SE Kerwath A Götz CG Attwood PD Cowley WHH SauerThe movement behaviour of adult Roman Chrysoblephus laticeps (Sparidae) was investigated using mark-and-recapture techniques in the Goukamma Marine Protected Area (GMPA) and the Tsitsikamma National Park (TNP) on the South African temperate south coast. The study was designed to improve... -
Management of avian cholera Pasteurella multocida outbreaks on Dyer Island, South Africa, 2002–2005
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LJ Waller LG UnderhillIn 2002 there was a widespread epizootic involving seabirds on five of the offshore islands of the Western Cape, South Africa. Since then, avian cholera Pasteurella multocida outbreaks have been occurring annually on one of these islands, Dyer Island. This... -
Making sense of censuses and dealing with missing data: trends in pup counts of Cape fur seal Arctocephalus pusillus pusillus for the period 1972–2004
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SP Kirkman WH Oosthuizen MA Meÿer PGH Kotze J-P Roux LG UnderhillTrends in the population of Cape fur seals Arctocephalus pusillus pusillus were estimated from counts of pups on aerial photographs of colonies taken between 1972 and 2004 to determine trends in the overall population and subpopulations. Incomplete coverage resulted in... -
Comparison of the effects of different linefishing methods on catch composition and capture mortality of South African temperate reef fish
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Götz SE Kerwath CG Attwood WHH SauerThe effects of hook size, bait type, water depth and fishing effort on the selectivity and capture mortality of reef fish were investigated in a standardised fishing experiment on the temperate south coast of South Africa. A total of 2... -
Reproductive biology of spiny lobster Panulirus regius from the north-western Cape Verde Islands
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Freitas A Medina S Correia M CastroGreen (spiny) lobsters Panulirus regius were obtained by diving at Cape Verde, West Africa, during three sampling periods: May–November 2001, April–December 2002 and April–June 2003. Totals of 429 male lobsters and 423 females (852 in all) were caught. Half the... -
Escapement of Cape hakes under the fishing line of the Namibian demersal sampling trawl
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Jørgensen A Engås E Johnsen T Iilende P Kainge P SchneiderSwept area surveys in Namibian waters provide input data to the stock assessment model. To evaluate the model's predictions, it is important to understand the catch efficiency of sampling trawls. The objective of this study was to establish whether Cape... -
Abrupt environmental shift associated with changes in the distribution of Cape anchovy Engraulis encrasicolus spawners in the southern Benguela
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Roy CD van der Lingen JC Coetzee JRE LutjeharmsCape anchovy Engraulis encrasicolus spawners in the southern Benguela showed an eastward shift in their distribution on the Agulhas Bank that occurred abruptly in 1996 and has since persisted. We assessed whether this shift was environmentally mediated by examining sea... -
On the feasibility of a directed trap-fishery for panga Pterogymnus laniarius (Sparidae) in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MS Gray T Hecht WHH SauerThe feasibility of a directed trap-fishery for panga Pterogymnus laniarius was investigated with special emphasis on minimising the bycatch. A total of 1 302 fish, representing 19 species, was captured in 59 trap deployments at three locations along the Eastern... -
Development of fishery indicators for local management initiatives — a case study for Plettenberg Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MKS Smith CM King WHH Sauer PD CowleyIn attempts to achieve sustainability, ecosystem-based approaches to fisheries management are becoming increasingly applicable. Indicators to assess the success of management measures are an important component of this approach. Data from a recreational linefishery are used to develop and propose... -
Temperature preference of juvenile dusky kob Argyrosomus japonicus (Pisces: Sciaenidae)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Bernatzeder PJ BritzThe final temperature preference of cultured juvenile dusky kob is determined to provide an indicator of their optimum temperature for growth. Trials were conducted over a five-day period in horizontal temperature gradients ranging from 21°C to 27°C. Control trials were... -
Sea level monitoring in Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PL Woodworth A Aman T AarupA review is provided of the African sea level dataset, which is limited not only in size, especially given the great length of the African coastline, but also in quality. The review is undertaken primarily from Permanent Service for Mean... -
Mapping and quantifying the South African kelp resource
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJ Anderson A Rand MD Rothman A Share JJ BoltonTwo species of kelp are exploited commercially in South Africa. Use of beach-cast Laminaria pallida is limited, although it comprises the bulk of the biomass on the northern West Coast. Ecklonia maxima dominates the southern West Coast and provides most... -
Sustainability and present-day approaches to fisheries management — are the two concepts irreconcilable?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GM Pilling AIL PayneSustainability may be defined as the maintenance of the quality, diversity and availability of fishery resources in sufficient quantities for present and future generations. But how do modern management systems aim to achieve this in the face of natural fluctuations... -
Assessment of the charter-boat fishery in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P Pradervand R van der ElstThe South African KwaZulu-Natal charter-boat fishery was assessed by means of a socio-economic questionnaire survey and catch inspections during the period August 2003–November 2004. In all, 38 charter operators were interviewed and 135 catch inspections undertaken. Of a total of... -
Implications for seabirds off South Africa of a long-term change in the distribution of sardine
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJM Crawford PS Sabarros T Fairweather LG Underhill AC WolfaardtFrom 1997 to 2005, the distribution of sardine Sardinops sagax, an important prey item for four seabirds off South Africa, shifted 400 km to the south and east, influencing its availability to breeding birds. It became progressively less available to... -
Simultaneous extraction of chitin and astaxanthin from waste of lobsters Jasus lalandii, and use of astaxanthin as an aquacultural feed additive
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Auerswald G GädeThis work investigates simple methods for simultaneous extraction of astaxanthin and chitin from industrial waste of the South African West Coast rock lobster Jasus lalandii. Removal of proteins from waste is the critical step to yield intact chitin and astaxanthin... -
Balanus glandula: from North-West America to the west coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: N Simon-Blecher Z Granevitze Y AchituvWe report the occurrence of the North-East Pacific intertidal barnacle Balanus glandula in the south-western African shores of the Atlantic Ocean. In addition, an attempt is made to trace the origin of the South African population by comparing the distribution... -
Impact of the Treasure oil spill on African penguins Spheniscus demersus at Dassen Island: case study of a rescue operation
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AC Wolfaardt LG Underhill R Altwegg J Visagie AJ WilliamsThe bulk ore carrier MV Treasure sank between Robben and Dassen islands off western South Africa in June 2000. Although releasing less oil than the Apollo Sea spill six years earlier, the number of African penguins Spheniscus demersus oiled (approximately... -
Restoration of oiled African penguins Spheniscus demersus a decade after the Apollo Sea spill
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AC Wolfaardt LG Underhill R Altwegg J VisagieThe bulk ore carrier Apollo Sea sank south-west of Dassen Island off western South Africa in June 1994, oiling approximately 10 000 African penguins Spheniscus demersus, most of which were collected from Dassen Island. A total of 4 076 de-oiled... -
Estuarine habitat use by juvenile dusky kob Argyrosomus japonicus (Sciaenidae), with implications for management
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PD Cowley SE Kerwath A-R Childs EB Thorstad F Økland TF NæsjeThe spatial and temporal area-use patterns of estuarine-dependent juvenile dusky kob Argyrosomus japonicus in the Great Fish Estuary, South Africa, were examined using acoustic telemetry. In all, 29 individuals (307–400 mm total length) were surgically equipped with individually coded transmitters... -
The effects of ageing biases on stock assessment and management advice: a case study on Namibian horse mackerel
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MR Wilhelm MD Durholtz CH KirchnerWe explore the influence of age-estimation errors on the results of the age-structured production model (ASPM) used for horse mackerel stock assessment in Namibia for the period 1961–2003. The analysis considered age data from eight readers collected during an otolith-reading... -
Breeding success of African penguins Spheniscus demersus at Dassen Island, especially after oiling following the Apollo Sea spill
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AC Wolfaardt LG Underhill DC Nel AJ Williams J VisagieThe reproductive success of African penguins Spheniscus demersus at Dassen Island from 1994 to 2000 was variable, but much higher than previously reported figures for the species. Breeding success was positively related to the abundance of anchovy Engraulis encrasicolus and... -
From beans to breams: how participatory workshops can contribute to marine conservation planning
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Wheeler FMJ Chambers R Sims-Castley RM Cowling DS SchoemanSystematic conservation planning is increasingly being used in the marine environment, but the relative paucity of data on marine patterns and process still presents a problem, particularly in developing countries. For example, along the south-eastern component of the Agulhas marine... -
Achievements and lessons learned from the Benguela Environment, Fisheries, Interaction and Training (BENEFIT) research programme
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: I Hampton N SweijdThis paper considers the scientific achievements of the Benguela Environment, Fisheries, Interaction and Training (BENEFIT) Programme as reflected in 29 internally evaluated BENEFIT research projects carried out between 1998 and 2007 when the programme ended, and draws a number of... -
Evaluating seal–seabird interactions in southern Africa: a critical review
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SP KirkmanThrough predation and displacement, the Cape fur seal Arctocephalus pusillus pusillus poses a threat to several seabird species that breed in southern Africa. Measures such as the culling of 'problem' seals have been introduced to negate the effects on these... -
Review of the rescue, rehabilitation and restoration of oiled seabirds in South Africa, especially African penguins Spheniscus demersus and Cape gannets Morus capensis, 1983–2005
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AC Wolfaardt AJ Williams LG Underhill RJM Crawford PA WhittingtonSouth Africa is a global hotspot for oil pollution. The regional oiled seabird cleaning centre, the South African Foundation for the Conservation of Coastal Birds (SANCCOB), has handled over 50 000 seabirds from its inception in 1968 until 2005. The... -
The 'fishery' in South Africa's remaining coastal stonewall fish traps
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LV Kemp GM Branch CA Attwood SJ LamberthAncient stonewall fish traps along the southern coast of South Africa, known locally as 'vywers', have both cultural and historical significance. Most have been degraded through neglect. Only two sets of vywers are actively maintained and fished, but without legal... -
Why do we need to integrate population genetics into South African marine protected area planning?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S von der Heyden --- Evolutionary Genomics Group, Department of Botany and Zoology, South AfricaSouth Africa is home to a wide variety of marine flora and fauna distributed over at least three biogeo-graphic provinces. Currently, 9% of the coastline is protected by ‘no-take’ marine protected areas (MPAs), but the distribution of MPAs is uneven... -
Intra-archipelago moult dispersion of southern elephant seals at the Prince Edward Islands, southern Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: WC Oosthuizen --- Mammal Research Institute, Department of Zoology and Entomology, South Africa MN Bester --- Mammal Research Institute, Department of Zoology and Entomology, South Africa PJN de Bruyn --- Mammal Research Institute, Department of Zoology and Entomology, South Africa GJG Hofmeyr --- Mammal Research Institute, Department of Zoology and Entomology, South AfricaDuring three summer surveys at Prince Edward Island (PEI), southern Indian Ocean (2001, 2004 and 2008), 416 southern elephant seals Mirounga leonina were inspected for identification tags. In all, 42 seals that had been tagged as weaned pups at their... -
Phenotypic plasticity and local adaptation in two extreme populations of Acacia karroo
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: G Bayonne Mboumba D WardPhenotypic plasticity is the effect of growth variability in response to different environmental conditions. Adaptive phenotypic plasticity is more specific; it is the ability of a single genotype to produce an array of phenotypes depending on the environmental extent. We... -
Syndromes of dryland degradation in southern Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: RJ Scholes --- Natural Resources and the Environment, South AfricaDryland degradation (in other words, desertification) is defined for the purposes of this paper as a persistent decrease in the capacity of an arid or semiarid ecosystem to supply a range of services, including (but not restricted to) forage, fuel,... -
Can brush-cutting of Pteronia paniculata improve the composition and productivity of veld in the Succulent Karoo, South Africa?
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: N Saayman --- Department of Agriculture: Western Cape, South Africa CD Morris --- Agricultural Research Council, South Africa MB Hardy --- Department of Agriculture: Western Cape, South Africa JC Botha --- Department of Agriculture: Western Cape, South AfricaPteronia paniculata is an indigenous, unpalatable shrub that invades mismanaged Karooveld, resulting in degraded rangelands with low species diversity and grazing potential. We conducted a series of trials in the Succulent Karoo Randteveld near Barrydale to determine if the uniform... -
Prediction models for estimating available fodder of two savanna tree species (Acacia dudgeoni and Balanites aegyptiaca) based on field and image analysis measures
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P Savadogo B ElfvingBrowse production is difficult to measure non-destructively without some level of subjectivity combined with a lack of accuracy and reproducibility. This study examined the possibility of using ground-based photographs to estimate browse production. Thirty five sample trees of Acacia dudgeoni... -
Soil erosion in the Herschel district of South Africa: changes over time, physical correlates and land users' perceptions
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: S VetterSoil erosion in rangelands is widely believed to be caused primarily by overgrazing. The aims of this study, conducted in a severely eroded district under communal tenure, were to establish (1) how the extent and severity of soil erosion have... -
Dynamics of woody vegetation in a semi-arid savanna, with a focus on bush encroachment
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M-L Britz D WardIncreases in the tree: grass ratio with accompanying changes in herbaceous composition, called bush or shrub encroachment, is a worldwide phenomenon in savanna regions. Although heavy grazing by livestock is often believed to be the cause, it is clear that... -
Condensed tannins and saponin content in different plant parts of Stylosanthes scabra (Fitzroy) plants harvested from agro-ecologically different sites in Zimbabwe
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JJ Baloyi T Acamovic M Odoardi N Berardo NT Ngongoni H HamudikuwandaThe objective of this study was to determine the proanthocyanidin (PA; condensed tannin) and saponin contents of different parts of Stylosanthes scabra (Fitzroy) plants harvested from five agro-ecologically different sites in Zimbabwe. Condensed tannins and saponin content of S. scabra... -
Quotient Maps: Frame-Valued Spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H. Boustique G. RichardsonIt is known that the category of frame-valued convergence spaces is topological, cartesian-closed and extensional. Properties of quotient maps between objects in this category are investigated here; in particular, it is shown that quotient maps are productive under arbitrary products. -
Measure of compactness for filters in the approach setting
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Frédéric MynardNew explicit descriptions of the reflections of a convergence-approach space on pseudo-approach, pre-approach and approach spaces are given. A measure of compactness for filters is introduced in the context of convergence-approach spaces. It is shown that this measure generalizes all... -
On extension of isometries between unit spheres of L∞ and E
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Lei Li Weiyun RenIn this paper, we study the extension of isometries between the unit spheres of L ∞ and a normed space E. We find a condition under which an isometric mapping between the unit spheres can be extended to a linear... -
Level spaces for lattice-valued uniform convergence spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Gunther JägerWe define level structures for lattice-valued uniform spaces and lattice-valued uniform convergence spaces. We show that these structures characterize the spaces from which they are obtained and use them to show that the categories of probabilistic uniform convergence spaces, of... -
An Answer to a Question on the Affine Bijections on C(X, I)
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Zafer Ercan Süleyman ÖnalA complete description of the bijective affine map on C(X, I) is given. This provides an answer to a question of [2] on the affine bijections on C(X, I). -
Notes on Cuntz-Krieger uniqueness theorems and C*-algebras of labelled graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bernhard BurgstallerIn this note we deal with Cuntz-Krieger uniqueness theorems and extend the class of algebras introduced in [3]. We use this analysis to show two Cuntz-Krieger uniqueness theorems for C*-algebras of labelled graphs. -
Graph Compositions and Flats of Cycle Matroids
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Eunice Mphako-Banda --- School of Mathematics, RSAWe give an alternative method for counting the number of graph compositions of any graph G. In particular we show that counting the number of graph compositions of a graph G is equivalent to counting the number of flats of... -
Tree taper models for Cupressus lusitanica plantations in Ethiopia
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Leakemariam Berhe Göran ArnoldssonTo provide a taper model for planning and management of Cupressus lusitanica plantations in Ethiopia, seven taper models were compared. Four performance indicator statistics were used for comparing the models in their ability to estimate tree diameter, and total and... -
Heritability of shoot die-back and root biomass in sixteen Pterocarpus angolensis (Fabaceae) half-sib families from Malawi, Namibia and Zambia
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: JP Mwitwa CRY Munthali G van WykThe experiment was conducted to ascertain narrow-sense heritability (h 2) and the family-within-provenance variation in shoot die-back, taproot length and root biomass of half-sib Pterocarpus angolensis families from Malawi, Namibia and Zambia. Provenances differed significantly in shoot die-back for both... -
Screening of topical sterilants for shoot apex culture of Acacia mearnsii
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: IM Thompson MD Laing SL Beck-Pay A FosseyThe surface sterilisation procedure is of integral importance to any micropropagation technique. This process should do the least amount of plant damage, whilst reducing microbial contamination to an acceptable level. The objective of this research was to investigate alternative sterilisation... -
RAPD markers demonstrate genetic diversity in Pterocarpus angolensis from Zimbabwe and Zambia
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: E Chisha-Kasumu S Woodward A PriceUnderstanding the availability, extent and apportionment of genetic variability in natural populations of the southern African savanna tree Pterocarpus angolensis can provide reliable information on the evolutionary history and phylogenetic relationships of P. angolensis populations. This information will aid strategies... -
Damage to foliage and stems caused by fungal pathogens in young eucalypt plantations in Zambia
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: A Muimba-Kankolongo --- School of Natural Resources, Zambia IN Nawa --- School of Agricultural Sciences, Zambia J Roux --- Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute, South Africa P Ng'andwe --- School of Natural Resources, ZambiaPlantations consisting of non-native tree species were established on the Copperbelt of Zambia to supplement timber supply from natural forests and to meet the increasing demand of round wood and fuel wood for the copper mines. In early 2004, a... -
Effect of weeding and fertilisation on bark thickness and stem form of seven pine species on a low-elevation site at Usutu, Swaziland
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: JW Crous --- , South Africa AR Morris --- , South Africa S Khoza --- , SwazilandOn a low-elevation site at Usutu alternative species to Pinus elliottii, the species recommended in the past for such sites, were planted to evaluate growth differences. At rotation age, destructive stem profile analyses were conducted on some of the trees... -
Relationship between the edgewise compression strength of corrugated board and the compression strength of liner and fluting medium papers
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: K Dimitrov --- Department of Chemical Engineering, South Africa M Heydenrych --- Department of Chemical Engineering, South AfricaThe compression strength of a corrugated board box is a direct measure of its stacking strength. The edgewise compression strength of corrugated board is the major contributor to the box stacking strength. This relation can be further extended to the... -
Effect of phosphorus and potassium fertiliser on tree growth and dry timber production of Pinus patula on gabbro-derived soils in Swaziland
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: JW Crous --- , South Africa AR Morris --- , South Africa MC Scholes --- School of Animal, Plant and Environmental Sciences, South AfricaA trial designed to determine the optimum timing and rate of application of phosphorus (P) and potassium (K) fertiliser, to mitigate a growth decline observed in P. patula stands located on the gabbro-derived soils (underlying 13% of the plantation area)... -
Eucalypt pests and diseases: growing threats to plantation productivity
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: MJ Wingfield B Slippers BP Hurley TA Coutinho BD Wingfield J RouxPlantations of eucalypts (species of Eucalyptus and Corymbia), particularly in the tropics and Southern Hemisphere, have expanded dramatically during the course of the last 100 years. The nature of these plantations has changed substantially as selection, breeding, hybridisation, vegetative propagation... -
Why is there Philosophy of Mathematics AT ALL?
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Ian Hacking --- Collège de France and University of Toronto,Mathematics plays an inordinate role in the work of many of famous Western philosophers, from the time of Plato, through Husserl and Wittgenstein, and even to the present. Why? This paper points to the experience of learning or making mathematics,... -
Congruent, decreasing trends of gentoo penguins and Crozet shags at sub-Antarctic Marion Island suggest food limitation through common environmental forcing
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJM Crawford --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa BM Dyer --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa L Upfold --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa AB Makhado --- Branch: Oceans and Coasts, Department of Environmental Affairs, South AfricaNumbers of gentoo penguins Pygoscelis papua and Crozet shags Phalacrocorax [atriceps] melanogenis breeding annually at Marion Island, one of South Africa's Prince Edward Islands in the South-West Indian Ocean, were strongly correlated over 19 split-years from 1994/1995 to 2012/2013. Both... -
Processes influencing the population dynamics and conservation of African penguins on Dyer Island, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Ludynia --- Marine Research Institute, Department of Biological Sciences, South Africa LJ Waller --- Western Cape Nature Conservation Board, South Africa RB Sherley --- Marine Research Institute, Department of Biological Sciences, South Africa F Abadi --- Animal Demography Unit, Department of Biological Sciences, South Africa Y Galada --- Marine Research Institute, Department of Biological Sciences, South Africa D Geldenhuys --- Western Cape Nature Conservation Board, South Africa RJM Crawford --- Animal Demography Unit, Department of Biological Sciences, South Africa LJ Shannon --- Marine Research Institute, Department of Biological Sciences, South Africa A Jarre --- Marine Research Institute, Department of Biological Sciences, South AfricaDyer Island, South Africa, supported the largest African penguin Spheniscus demersus colony in 1979 (22 655 breeding pairs), but population dynamics of the species have not followed the trends of adjacent colonies in years of high fish abundance or shifts... -
Egg-capping in the Southern Ground-Hornbill Bucorvus leadbeateri
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kathleen F Carstens --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South Africa‘Egg-capping’ describes occurrences of the empty shell from a hatched egg slipping over an unhatched egg from the same clutch. It is a rare phenomenon, occurring typically in <2% of nests monitored. Here I report the first two observed cases... -
Factors affecting diet, habitat selection and breeding success of the African Crowned Eagle Stephanoaetus coronatus in a fragmented landscape
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Christopher J Swatridge --- School of Biosciences, UK Ara Monadjem --- All Out Africa Research Unit, Department of Biological Sciences, Swaziland David J Steyn --- , South Africa Garth R Batchelor --- , South Africa Ian CW Hardy --- School of Biosciences, UKThis study aimed to identify variables that affect habitat selection and nesting success of the African Crowned Eagle Stephanoaetus coronatus, the largest forest raptor, in north-eastern South Africa. A preference for nesting in the Northern Mistbelt Forest vegetation type was... -
Responses of the Serengeti avifauna to long-term change in the environment
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Anthony RE Sinclair --- Beaty Biodiversity Research Centre, Canada Ally Nkwabi --- Serengeti Biodiversity Program, Tanzania Simon AR Mduma --- Beaty Biodiversity Research Centre, Canada Flora Magige --- Department of Zoology and Wildlife Conservation, TanzaniaIn this paper we examine how climate change interacts with other disturbances to alter the functioning of a tropical ecosystem, the Serengeti in Tanzania. Tropical Africa has increasing temperatures and changes in rainfall. Long-term data have shown how the avifauna... -
Wind farms threaten southern Africa's cliff-nesting vultures
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ian Rushworth --- Scientific Services, South Africa Sonja Krüger --- Scientific Services, South AfricaWind farms have been shown to cause bird mortality in many studies. Proposals for the development of wind farms in Lesotho, which is core habitat for small and declining populations of the regionally Endangered Bearded Vulture Gypaetus barbatus meridionalis and... -
On the existence and approximation of fixed points for Ćirić type contractive mappings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: B. Djafari-Rouhani --- Department of Mathematical Sciences, USA Sirous Moradi --- Department of Mathematics, IranLet (X, d) be a complete convex metric space, and C be a nonempty, closed and convex subset of X. We consider Ćirić type contractive self-mappings T of C satisfying: for all x, y ∈ C, where 0 < a... -
Growth rates of alien Oreochromis niloticus and indigenous Oreochromis mortimeri in Lake Kariba, Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PC Chifamba --- Department of Biological Sciences, Zimbabwe JJ Videler --- Centre for Ecological and Evolutionary Studies, The NetherlandsGrowth rates of indigenous Oreochromis mortimeri and alien Oreochromis niloticus from Lake Kariba were estimated from samples collected in 1997–2000, 2003–2005 and 2010–2011. Growth zones on scales and otoliths of O. niloticus and on the otoliths and opercula of O... -
Predicting the potential distribution of invasive silver carp Hypophthalmichthys molitrix in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Lübcker --- Department of Zoology and Entomology, South Africa TA Zengeya --- Department of Zoology and Entomology, South Africa J Dabrowski --- Department of Paraclinical Sciences, Faculty of Veterinary Science, South Africa MP Robertson --- Department of Zoology and Entomology, South AfricaPredicting the potential geographical distribution and spread of non-native species is of major concern to ecologists. Silver carp Hypophthalmichthys molitrix, ranked as one of the world's 100 worst invasive species, were introduced into South Africa in 1975, but the potential... -
Vegetation change in northern KwaZulu-Natal since the Anglo-Zulu War of 1879: local or global drivers?
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Jennifer Russell --- School of Life Sciences, South Africa David Ward --- School of Life Sciences, South AfricaThe quality of the landscape is declining in many grassland and savanna areas of Africa as a consequence of woody plant encroachment. We investigated the changes in vegetation at selected sites on the battlefields of the Anglo-Zulu War of 1879... -
The influence of South Africa's post-apartheid land reform policies on bush encroachment and range condition: a case study of Fort Beaufort's municipal commonage
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: James R Puttick --- Plant Conservation Unit, Department of Biological Sciences, South Africa M Timm Hoffman --- Plant Conservation Unit, Department of Biological Sciences, South Africa James Gambiza --- Department of Environmental Science, South AfricaWe examined the effect of changes in land use and land tenure on bush encroachment and vegetation condition. An analysis of aerial photographs from three time steps (1949, 1985 and 2004) was used to document changes in woody plant density... -
The development of an expert system for arid rangeland management in central Namibia with emphasis on bush thickening
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: David Joubert --- Nature Conservation, Namibia Ibo Zimmermann --- Nature Conservation, Namibia Jens Fendler --- Nature Conservation, Namibia Heike Winschiers-Theophilus --- Nature Conservation, Namibia Friedrich P Graz --- Nature Conservation, Namibia Nico Smit --- Animal, Wildlife and Grassland Sciences, South Africa M Timm Hoffman --- Plant Conservation Unit, Botany Department, South AfricaAn online decision support system derived from research and expert knowledge was developed for arid rangeland management in central Namibia. The expert system emphasises the control of bush thickening and is divided into three forms of decisions: adaptive, reactive and... -
The impact of land use on woody plant cover and species composition on the Grahamstown municipal commonage: implications for South Africa's land reform programme
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: James R Puttick --- Plant Conservation Unit, Department of Biological Sciences, South Africa M Timm Hoffman --- Plant Conservation Unit, Department of Biological Sciences, South Africa James Gambiza --- Department of Environmental Science, South AfricaUsing an analysis of aerial photographs from 1942, 1985 and 2004 we assessed the impact of changing land tenure and land-use regimes on the cover of thicket vegetation on the Grahamstown commonage. Land-use impacts were examined by comparing plant species... -
A century of woody plant encroachment in the dry Kimberley savanna of South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: David Ward --- School of Life Sciences, South Africa M Timm Hoffman --- Plant Conservation Unit, Botany Department, South Africa Sarah J Collocott --- School of Life Sciences, South AfricaWoody plant encroachment is frequent in dry savannas. Grazing is often considered to be a major cause of encroachment in dry savannas because grasses are removed by livestock, leaving bare areas for trees to colonise in wetter years. Earlier experiments... -
Bush encroachment in southern Africa: changes and causes
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Tim G O'Connor --- South African Environmental Observation Network (SAEON), South Africa James R Puttick --- Plant Conservation Unit, Department of Biological Sciences, South Africa M Timm Hoffman --- Plant Conservation Unit, Department of Biological Sciences, South AfricaBush encroachment has been recognised in southern Africa since the late nineteenth century. Our review of 23 studies showed that the rate of woody cover change has ranged from −0.131 to 1.275% y−1. Encroachment was most rapid on small protected... -
Difference in shade tolerance affects foliage–sapwood response to thinning by two eucalypts
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Rui Ling Yao --- Guangxi Zhuang Autonomous Region Forestry Research Institute, China Kevin Glencross --- Cooperative Research Centre for Forestry and Forestry Program, School of Environment, Science and Engineering, Australia J Doland Nichols --- Cooperative Research Centre for Forestry and Forestry Program, School of Environment, Science and Engineering, AustraliaIn eucalypt plantations in subtropical Australia, Eucalyptus dunnii exhibits greater diameter increment after thinning than more shade-tolerant Corymbia citriodora. To elucidate the mechanism underlying this difference, we investigated relationships between tree leaf area and sapwood area following thinning in 11-year-old... -
Familial hypercholesterolemia
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: DJ Blom --- Division of Lipidology, Department of Medicine, South AfricaFamilial hypercholesterolaemia (FH) is a monogenic disorder of low-density lipoprotein (LDL) metabolism. It is characterised by markedly elevated LDL cholesterol, autosomal dominant inheritance, premature cardiovascular disease and tendon xanthomata. FH is a genetically heterogeneous disorder, but the most common underlying... -
Imaging phaeochromocytoma
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Janse P van Rensburg --- Division of Radiodiagnosis, Department of Medical Imaging and Clinical Oncology, Faculty of Health Sciences, South AfricaThe phaeochromocytoma (pheochromocytoma) is a hormonally active tumour of neuroendocrine origin. This article reviews the embryology, anatomy, nomenclature and pathology as it relates to the imaging of phaeochromocytomas and paragangliomas. The imaging findings and the role of different imaging modalities... -
The role of hormone therapy in the treatment of osteoporosis
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: MR Davey --- Westville Hospital,The concerns raised by the findings of the Women's Health Initiative study resulted in many practitioners no longer considering the use of menopausal hormone therapy for the treatment of osteoporosis. Subsequent re-analyses of this study, recent publications on the use... -
Papillary thyroid cancer: sporadic or inherited?
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: S Mogili --- Resident Department of Internal Medicine, K Rajamani --- Endocrinology and Diabetes Center,Background: Papillary thyroid cancer (PTC) is one of the most common thyroid malignancies, with an increase in incidence rates over the past few decades. Although the exact cause of thyroid cancer in most patients is still unclear, the possibility of... -
Diabetes guidelines and clinical practice: is there a gap? The South African cohort of the International Diabetes Management Practices Study
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: A Amod --- , W Riback --- Endocrinology, Thrombosis and Anti-Infectives, Sanofi-Aventis, HS SchoemanObjectives: The objective of this survey was to determine the therapeutic management of patients with diabetes in the South African private healthcare environment. -
An overview of insulin pump therapy: appropriate use of an expensive resource
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: VJ Brown --- Diabetes Education, Centre for Diabetes and Endocrinology,Insulin pump therapy is an option for intensive insulin therapy in patients with type l diabetes who meet the criteria described in this article. Pump therapy may assist in the reduction of haemoglobin A1c (HbA1c) and the frequency of severe... -
The use of phototherapy in the treatment of diabetic ulcers
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: B Nteleki --- Department of Podiatry, Faculty of Health Sciences, NN Houreld --- Laser Research Centre, Faculty of Health Sciences,Chronic ulcers are a common complication in diabetes. The nature of diabetic foot ulcers makes them difficult to manage and treat. A dynamic management plan is required to treat diabetic lower limb ulcerations. This involves a strategic approach, including mechanical... -
Carotid intima-media thickness and its associations with type 2 diabetes mellitus in South Africans
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: P Rheeder --- Epidemiology and Biostatistics Track, School of Health Systems and Public Health, University of Pretoria, MC Duim-Beytell --- School of Medicine, University of Pretoria, R Meijer --- Julius Centre for Health Sciences and Primary Care, Netherlands T Gustavsson --- Image and Data Analysis, Sweden GKG Danler --- Department of Radiology, RA Ahmed --- Department of Radiology, DG Van Zyl --- Department of Internal Medicine,Objectives: Carotid intima-media thickness (CIMT) is a surrogate marker of subclinical atherosclerosis and a predictor of cardiovascular events. Few studies in Africa have evaluated CIMT and its associations in people with type 2 diabetes mellitus. This study measured CIMT in... -
Autoimmune polyglandular syndrome type 1 in a 12-year-old Ugandan girl
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: D Kibirige --- Makerere University College of Health Sciences and Dermatology Unit, Mulago National Referral and Teaching Hospital, Uganda F Kambugu --- Makerere University College of Health Sciences and Endocrine Unit, Mulago National Referral and Teaching Hospital, UgandaAutoimmune polyglandular syndrome type 1 (APS-1), also known as autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy syndrome, is a very rare disorder of childhood. It is mainly characterised by the presence of at least two of the following: chronic mucocutaneous candidiasis, chronic hypoparathyroidism and... -
The effectiveness of analgesic electrotherapy in the control of pain associated with diabetic neuropathy
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Jan Szopinski --- Department of Internal Medicine, Silesian Medical Academy, Poland Georg Lochner --- Department of Bioengineering, South Africa Hanna Szopinska --- Pain Clinic, Mayo Medical Centre of South Africa, Constantia Kloof, South AfricaObjective: To investigate the usefulness of transcutaneous electrical nerve stimulation (TENS) and electroacupuncture in managing the pain associated with diabetic neuropathy. -
Coping responses as predictors of psychosocial functioning amongst individuals suffering from chronic pain
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: AC Vorster --- Department of Psychology, South Africa SP Walker --- Unit for Professional Training and Sevices in the Behavioural Sciences, South Africa KGF Esterhuyse --- Department of Psychology, South AfricaBackground: Research on coping with chronic pain has focused on exploring the impact of different coping responses on various aspects of living with chronic pain. The aim of this study is to determine whether certain coping responses can be identified... -
Lipid rescue: the use of lipid emulsions to treat local anaesthetic toxicity
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: CJ Kruger --- Department of Anaesthesiology and Critical Care, South Africa PC Marwick --- Department of Anaesthesiology and Critical Care, South Africa AI Levin --- Department of Anaesthesiology and Critical Care, South AfricaDespite increasing safety of regional anaesthesia, the growth in the popularity therof implies that local anaesthetic toxicity will occur occasionally. Local anaesthetic cardiotoxicity, even when using “safer” modern local anaesthetics, is notoriously resistant to standard resuscitation. The aim of this... -
Entropy of the electroencephalogram as applied in the M-Entropy S/5™ Module (GE Healthcare) during increases in nitrous oxide and constant sevoflurane concentrations
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: FJ Smith --- Department of Anaesthesiology, South Africa S Spijkerman --- Department of Anaesthesiology, South Africa PJ Becker --- Biostatistics Unit, Medical Research Council, and Unit for Clinical Epidemiology, South Africa JF Coetzee --- Department of Anaesthesiology and Critical Care, South AfricaBackground: It has been suggested that spectral entropy of the electroencephalogram as applied in the M-Entropy S/5TM Module (GE Healthcare) does not detect the effects of nitrous oxide (N2O). The aim of this study was to investigate the effect on... -
Near-fatal outcome after administration of hyoscine-N-butylbromide (Buscopan®)
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A Milner --- Department of Anaesthesia, South AfricaWhile undergoing conscious sedation for a gastroscopy, an 18-year-old female developed severe hypotension and loss of consciousness. This occurred shortly after an intravenous dose of hyoscine-N-butylbromide (Buscopan®). Resuscitation was performed over a period of 10 minutes and was successful. Once... -
Amniotic fluid embolism in an HIV-positive parturient
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: PR Penfold --- Department of Anaesthesia, South Africa C Corbett --- Department of Anaesthesia, South Africa L Bortolan --- Department of Anaesthesia, South AfricaWe present a case of a parturient infected with human immunodeficiency virus, who developed amniotic fluid embolism during the delivery of her twins by elective Caesarean section. Our management and the available literature are briefly discussed, and consideration is given... -
Change or be changed; anaesthetist accreditation in echocardiography: is it time?
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: AR Keene --- Olivedale Cardiothoracic Unit, South Africa -
Evaluating the effect of preoperative oral gabapentin on postoperative pain in patients receiving spinal anaesthesia for lower limb surgery
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: P Raghove --- Department of Anaesthesiology, India R Jaiswal --- Department of Anaesthesiology, India K Singh --- Department of Anaesthesiology, IndiaBackground: Gabapentin has been used successfully as a non-opioid analgesic adjuvant for postoperative pain management. We hypothesised that gabapentin might be a useful adjuvant for postoperative analgesia in patients undergoing lower extremity surgery under subarachnoid block. -
Anaesthetic management of a patient with sick sinus syndrome for exploratory laparotomy
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: S Alex --- Department of Anaesthesiology, India JP Saneesh --- Department of Anaesthesiology, India R Rao --- Department of Anaesthesiology, India M Upadya --- Department of Anaesthesiology, IndiaSick sinus syndrome is a generalised abnormality of cardiac impulse formation that may be caused either by an intrinsic disease of the sinus node, which makes it unable to perform its pacemaking function, or by extrinsic factors. It commonly affects... -
Anaesthetic management of appendectomy in a patient with cerebral arteriovenous malformation
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: R Taneja --- Department of Anaesthesia, India S Kiran --- Department of Anaesthesia, IndiaBackground: The aim of anaesthetic management for appendectomy in a patient with cerebral arteriovenous malformation (AVM) is to maintain a stable cardiovascular system. As this condition is rare, there are no definitive guidelines regarding the anaesthetic management of such patients. -
A pilot study to determine the profile of recovery room nurses in Johannesburg hospitals
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: J Scribante --- Department of Anaesthesiology, Health Sciences, HC Perrie --- Department of Anaesthesiology, Health Sciences,Background: Apart from anecdotal evidence, very little is known of the recovery room nurses in South Africa. -
Chronic pain in the community: a survey in a township in Mthatha, Eastern Cape, South Africa
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: EU Igumbor --- School of Public Health, University of the Western Cape, South Africa TR Puoane --- School of Public Health, University of the Western Cape, South Africa SA Gansky --- Division of Oral Epidemiology, USA O Plesh --- Department of Preventive and Restorative Dental Science, USABackground: Comprehensive information is needed on the epidemiology and burden of chronic pain in the population for the development of appropriate health interventions. This study aimed to determine the prevalence, severity, risk indicators and responses of chronic pain among adults... -
The efficacy of ultrasound-guided oblique subcostal transversus abdominis plane block in patients undergoing open cholecystectomy
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: CK Chen --- Department of Anaesthesiology and Intensive Care, Malaysia VE Phui --- Department of Anaesthesiology and Intensive Care, MalaysiaBackground: Ultrasound-guided oblique subcostal transversus abdominis plane (TAP) blockade has been described recently as providing a wider analgesic blockade than the posterior approach, with the possibility of being suitable for surgery both superior and inferior to the umbilicus. The objective... -
Case study: Systemic complications following absolute alcohol embolisation of scalp arteriovenous malformation
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: S Agrawal --- Department of Anesthesia, Pain and Intensive Care, India YS Payal --- Department of Anesthesia, Pain and Intensive Care, India S Burathoki --- Department of Radiology, India V Asthana --- Department of Anesthesia, Pain and Intensive Care, India A Rizvi --- Department of Anesthesia, Pain and Intensive Care, India JP Sharma --- Department of Anesthesia, Pain and Intensive Care, IndiaAlcohol ablation is an accepted technique for the management of arteriovenous malformations. It is preferred due to the unique property of absolute alcohol to cause complete ablation and prevention of revascularisation. However, this technique is associated with multiple complications which... -
Anaesthetic management of laparoscopic assisted bilateral adrenalectomy in a five-year-old child with Cushing's disease
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: AP Saffin --- Walter Sisulu University, JM Thomas --- Red Cross War Memorial Children's Hospital, University of Cape Town,A five-year-old girl, weighing 42 kg and with a diagnosis of Cushing's disease, presented for bilateral, laparoscopic adrenalectomy. -
The Cardiothoracic Anaesthesia Society of South Africa (CASSA) consensus paper for accreditation of anaesthetists in South Africa in perioperative echocardiography Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A Keene --- Working Group of the Cardiothoracic Anaesthesia Society of South Africa (CASSA), S Fischer --- Working Group of the Cardiothoracic Anaesthesia Society of South Africa (CASSA), E Turton --- Working Group of the Cardiothoracic Anaesthesia Society of South Africa (CASSA), J Van Der Westhuizen --- Working Group of the Cardiothoracic Anaesthesia Society of South Africa (CASSA), A Myburgh --- Working Group of the Cardiothoracic Anaesthesia Society of South Africa (CASSA), A Milner --- Working Group of the Cardiothoracic Anaesthesia Society of South Africa (CASSA), N Mdladla --- Working Group of the Cardiothoracic Anaesthesia Society of South Africa (CASSA), J Swanevelder --- Working Group of the Cardiothoracic Anaesthesia Society of South Africa (CASSA),There is a need to develop an accreditation process for South African physicians who practise perioperative echocardiography. International level accreditation will bring legitimacy to the process of training practitioners in perioperative echocardiography and ensure standards of practice. Accreditation will be... -
The Laryngeal Mask Airway Supreme™: safety and efficacy during gynaecological laparoscopic surgery
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: JM Beleña --- Department of Anaesthesiology and Critical Care, Spain M Núñez --- Department of Anaesthesiology and Critical Care, Spain JL Gracia --- Department of Anaesthesiology and Critical Care, Spain JL Pérez --- Department of Anaesthesiology and Critical Care, Spain J Yuste --- Department of Anaesthesiology and Critical Care, SpainBackground: Laryngeal Mask Airway Supreme™ (LMA Supreme™) is a new single-use polyvinyl chloride supraglottic device that offers gastric access. To date, studies that have tested the LMA Supreme™) for use in laparoscopic surgery have been reported. We present the largest... -
Cervical epidural anaesthesia for shoulder arthroscopy and effective postoperative physiotherapy for a frozen shoulder: a case study
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: K Marodkar --- Department of Anaesthesiology, India S Deshmukh --- Department of Anaesthesiology, IndiaShoulder arthroscopy is used to treat various diseases of the shoulder, including refractory adhesive capsulitis. Effective postoperative pain relief is critical for these patients, as the success of surgery largely depends on early and regular physiotherapy. Although traditionally, various methods... -
Transient aphasia following spinal anaesthesia in an orthopaedic patient
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: B Tripat --- Department of Anaesthesia and Critical Care, India G Ruchi --- Department of Anaesthesia and Critical Care, India T Sonika --- Department of Anaesthesia and Critical Care, IndiaA 50-year-old male [American Society of Anesthesiologists (ASA) grade II] was scheduled for lower limb orthopaedic surgery. The subarachnoid space was localised with difficulty at L3/4 interspace and 3 ml of hyperbaric bupivacaine was given. Within a few minutes, the... -
Intraoperative neurophysiological monitoring for the anaesthetist
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: JJN Van Der Walt --- Department of Anaesthesia, JM Thomas --- Red Cross War Memorial Children's Hospital, University of Cape Town, AA Figaji --- Division of Neurosurgery,Intraoperative neurophysiological monitoring (IONM) has become the gold standard for the monitoring of functional nervous tissue and mapping of eloquent brain tissue during neurosurgical procedures. The multimodal use of somatosensory-evoked potentials and motor-evoked potentials ensures adequate monitoring of anterior sensory... -
Spinal anaesthesia for brachytherapy for carcinoma of the cervix: a comparison of two dose regimens of hyperbaric bupivacaine
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: NJ Haus --- Department of Anaesthesia, TC Kambarami --- Department of Anaesthesia, RA Dyer --- Department of Anaesthesia,Objectives: Spinal anaesthesia can be suitably performed for a variety of day-stay (ambulatory) surgical procedures. The time taken for adequate recovery to allow discharge home from hospital is an important consideration. The purpose of this study was to compare the... -
The use of intraoperative transoesophageal echocardiography as a monitor for haemodynamic instability during pulmonary hydatid cyst excision
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: G Picken --- Department of Anaesthetics, A Myburgh --- Department of Anaesthetics,We present the case of a patient with bilateral, pulmonary hydatid cysts who presented for cystectomy and developed life-threatening, haemodynamic instability when turned into the lateral decubitus position. Intraoperative transoesophageal echocardiography allowed for rapid interpretation of the haemodynamic collapse and... -
Pain severity, coping and satisfaction with life in patients with chronic pain
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: SP Walker --- Unit for Professional Training and Services in the Behavioural Sciences (UNIBS), KGF Esterhuyse --- Department of Psychology,Objectives: The primary study aim was to determine whether or not a statistically significant relationship exists between pain severity and satisfaction with life in patients with chronic pain. The second aim was to explore the extent to which coping responses... -
Regional infraclavicular blocks via the coracoid approach for below-elbow surgery: a comparison between ultrasound guidance with, or without, nerve stimulation
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: FMT Azmin --- Department of Anaesthesiology and Intensive Care, Malaysia YC Choy --- Department of Anaesthesiology and Intensive Care, MalaysiaThis randomised, observer-blinded study compared brachial plexus infraclavicular block under ultrasound guidance with, or without, nerve stimulation, for patients undergoing below-elbow surgery. -
Intraoperative neurophysiological monitoring for the anaesthetist
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: JJN Van Der Walt --- Department of Anaesthesia, Red Cross War Memorial Children's Hospital, JM Thomas --- Red Cross War Memorial Children's Hospital, AA Figaji --- Division of Neurosurgery,The use of intraoperative neurophysiological monitoring (INM) during spinal orthopaedic and neurosurgical procedures provides a challenge to the attending anaesthesiologist. Since all anaesthetic agents affect synaptic function, the choice of agent will be determined by the type of surgery and... -
Regional anaesthesia in children: an update
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: AT Bosenberg --- Department Anesthesiology and Pain Management, Faculty Health Sciences, USARegional anaesthesia for children continues to grow in popularity. The potential benefits of regional anaesthesia over more conventional methods are well recognised, but the level of evidence is small since there are few well designed randomised controlled studies on infants... -
Pioneers in South African Anaesthesia: Dr Heyman Harold (Heymie) Samson, anaesthetic innovator
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: PC Gordon --- Nagin Parbhoo History of Anaesthesia Museum, Department of Anaesthesia, RW Nieuwveld --- Department of Anaesthesia, -
A brief overview of transesophageal echocardiography
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: J Ender --- Department of Anesthesiology and Intensive Care Medicine, Heartcenter, Germany S Sgouropoulou --- Department of Anesthesiology and Intensive Care Medicine, Heartcenter, Germany -
Tramadol and postoperative shivering in patients undergoing open and laparoscopic cholecystectomy under general anaesthesia
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: R Angral --- Department of Anaesthesia, India AA Wani --- Department of Anaesthesia, India BB Kapoor --- Department of Anaesthesia, IndiaBackground: For many years, shivering after anaesthesia has been recognised, and is one consequence of perioperative hypothermia. Shivering affects a number of physiological parameters. The aim of the study was to evaluate the severity of hypothermia after open and laparoscopic... -
Homemade sugar-salt solution for oral rehydration: Knowledge of mothers and caregivers
Item type: Journal Article • Journal: South African Family Practice • Authors: H Dippenaar --- Department of Family Medicine, G Joubert --- Department of Biostatistics, R Nel --- Department of Biostatistics, ML Bantobetse --- University of the Free State, AA Opawole --- Department of Family Medicine, KS Roshen --- Department of Family Medicine,Background: Worldwide, it is estimated, that more than two million children under the age of five die annually as a result of gastroenteritis with dehydration. Up to 95% of these cases can be treated successfully with oral rehydration therapy. The... -
Review of common cutaneous adverse drug reactions
Item type: Journal Article • Journal: South African Family Practice • Authors: MH Motswaledi --- Department of Dermatology, -
The knowledge and skills gap of medical practitioners delivering district hospital services in the Western Cape, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: MR De Villiers --- Family Medicine and Primary Care, Department of Interdisciplinary Health Sciences, Faculty of Health Sciences, PJT De Villiers --- Family Medicine and Primary Care, Department of Interdisciplinary Health Sciences, Faculty of Health Sciences,Introduction -
Impact of recent evidence on the use of hormone therapy in the South African private sector (2001–2005)
Item type: Journal Article • Journal: South African Family Practice • Authors: SH Podmore --- Department of Therapeutics and Medicines Management, J Botha --- Department of Therapeutics and Medicines Management, A Gray --- Department of Therapeutics and Medicines Management, T Esterhuizen --- Department of Medical Biostatistics,Background: The release of the results of the oestrogen plus progesterone therapy (EPT) arm of the Women's Health Initiative (WHI) in July 2002 started a worldwide process of reconsideration of the rationale behind hormone therapy (HT). This process was accelerated... -
Unveiling the physical therapies
Item type: Journal Article • Journal: South African Family Practice • Authors: L Alford --- School of Allied Health Professions, University of East Anglia, United KingdomEither through referral by a medical practitioner or self-referral many patients with musculoskeletal problems receive some form of physical therapy. There are several highly trained professional groups who deliver this treatment. Due to lack of regulation, however, there are also... -
The effect of a topically-applied cosmetic oil formulation on striae distensae
Item type: Journal Article • Journal: South African Family Practice • Authors: B Summers --- Photobiology Laboratory, M Lategan --- Photobiology Laboratory,Background: Stretch marks or striae distensae are tears in the dermis, above which the epidermis remains intact. Striae result from rapid expansion of the underlying tissue, e.g. during puberty, pregnancy or rapid weight gain. The prevalence of striae is high... -
The profile of disability grant applicants in Bishop Lavis, Cape Town
Item type: Journal Article • Journal: South African Family Practice • Authors: T Govender --- Stellenbosch University, G Mji --- Centre for Rehabilitation Studies,Background: Disability grants in South Africa increased from 600 000 in 2000 to almost 1.3 million in 2004. This rise can be attributed to the HIV/AIDS epidemic, South Africa's high rate of unemployment and possibly an increased awareness of constitutional... -
Epidemiological profile of non-daily smokers in South Africa: implications for practice
Item type: Journal Article • Journal: South African Family Practice • Authors: OA Ayo-Yusuf --- Department of Community Dentistry and School of Health Systems and Public Health, B Szymanski --- School of Health Systems and Public Health,Background: This study sought to provide an epidemiological profile of non-daily (ND) smokers in South Africa. -
The general practitioner's approach to pelvic organ prolapse
Item type: Journal Article • Journal: South African Family Practice • Authors: HS Cronjé --- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, South AfricaPelvic organ prolapse (POP) together with urinary incontinence is extremely common. About 11% of women will receive surgery for these conditions and a third of them will receive a second operation within two years. The general practitioner should be on... -
The Human Genome and Gene “Therapy”: Some Ethical Issues
Item type: Journal Article • Journal: South African Family Practice • Authors: D Knapp van Bogaert --- Steve Biko Centre for Bioethics, Faculty of Health Sciences, GA Ogunbanjo --- Dept. of Family Medicine & PHC, Faculty of Health Sciences,The major scientific achievement of the Twentieth Century was the discovery of the double helix, and the mapping of the human genome in 2003. Contemporary medical and scientific knowledge in the field of gene therapy has the potential to inform... -
Tuberculosis of the urinary tract and male genitalia—a diagnostic challenge for the family practitioner
Item type: Journal Article • Journal: South African Family Practice • Authors: AD Zarrabi --- Department of Urology, CF Heyns --- Department of Urology,Tuberculosis (TB) of the urinary tract and male genital system can be very difficult to diagnose unless a high index of suspicion is maintained. The most common presenting features of urogenital tuberculosis (UGTB) are lower urinary tract symptoms (LUTS), haematuria,... -
Nicotine-replacement therapy: a proven treatment for smoking cessation
Item type: Journal Article • Journal: South African Family Practice • Authors: N Robson --- Department of Primary Care Medicine, Faculty of Medicine, MalaysiaSmoking is a major cause of cardiovascular diseases, respiratory diseases and cancer. Despite the high prevalence of smokers worldwide, smokers are often neglected and not offered effective assistance with quitting their habits. In order to overcome this public health burden,... -
Aphasia, an acquired language disorder
Item type: Journal Article • Journal: South African Family Practice • Authors: R Schoeman --- Department of Psychology, South Africa G Van der Merwe --- Department of Psychology, South AfricaAffecting an estimated one in every 272 South Africans, or 0.37% of the population, aphasia is a neurological condition described as “any disturbance in the comprehension or expression of language caused by a brain lesion”. -
Tinea capitis in a 21-day-old neonate
Item type: Journal Article • Journal: South African Family Practice • Authors: SA Adefemi --- Department of Family Medicine, Federal Medical Centre, NigeriaLH is a two-month-old baby girl seen in the outpatient skin clinic of the Family Medicine Department of the Federal Medical Centre, Bida, Nigeria. She had a single erythematous plaque on her scalp of five weeks duration. The lesion was... -
The Phelophepa Health Care Train: a pharmacoepidemiological overview of the Western Cape in 2009
Item type: Journal Article • Journal: South African Family Practice • Authors: I Truter --- Drug Utilisation Research Unit, Department of Pharmacy, South AfricaBackground: The Phelophepa Health Care Train is the only primary healthcare train in the world. Phelophepa is an innovative initiative that attempts to make a positive difference to primary healthcare in rural South Africa. The primary aim of this study... -
Familial hypercholesterolemia
Item type: Journal Article • Journal: South African Family Practice • Authors: DJ Blom --- Division of Lipidology, Department of Medicine, South AfricaFamilial hypercholesterolaemia (FH) is a monogenic disorder of low-density lipoprotein (LDL) metabolism. It is characterised by markedly elevated LDL cholesterol, autosomal dominant inheritance, premature cardiovascular disease and tendon xanthomata. FH is a genetically heterogeneous disorder, but the most common underlying... -
Attention-deficit hyperactivity disorder in adults: a guide for the general practitioner
Item type: Journal Article • Journal: South African Family Practice • Authors: GI Van Schalkwyk --- Stellenbosch University, South Africa J SchronenAttention-deficit hyperactivity disorder (ADHD) has an estimated prevalence of 3.5% in adults. Knowledge regarding the diagnosis and treatment of this condition remains limited amongst general practitioners. The clinical presentation is highly variable, and the manifestations of the characteristic symptoms of... -
Complementary and alternative medicine for attention deficit/hyperactivity disorder: An Eastern Cape study
Item type: Journal Article • Journal: South African Family Practice • Authors: S Snyman --- Department of Pharmacy, South Africa I Truter --- Department of Pharmacy, South Africa -
Bouncing forward: families living with a type I diabetic child
Item type: Journal Article • Journal: South African Family Practice • Authors: O Brown --- Department of Psychology, Faculty of Health Sciences, South Africa P Fouché --- Department of Psychology, Faculty of the Humanities, South Africa M Coetzee --- Uitenhage Provincial Hospital, South AfricaBackground: Despite the multitude of challenges that families living with a child with diabetes face, they have been found to adapt to such an extent that diabetes is viewed as a manageable condition. This study was concerned with the factors... -
Hypertension
Item type: Journal Article • Journal: South African Family Practice • Authors: JA Ker --- Department of Internal Medicine, Faculty of Health Sciences, -
The Human Genome and Gene “Therapy”: Some Ethical Issues
Item type: Journal Article • Journal: South African Family Practice • Authors: D Knapp van Bogaert --- Steve Biko Centre for Bioethics, Faculty of Health Sciences, GA Ogunbanjo --- Dept. of Family Medicine & PHC, Faculty of Health Sciences,The major scientific achievement of the Twentieth Century was the discovery of the double helix, and the mapping of the human genome in 2003. Contemporary medical and scientific knowledge in the field of gene therapy has the potential to inform... -
A wandering spleen: A common presentation of an uncommon anomaly
Item type: Journal Article • Journal: South African Family Practice • Authors: AC Ugwu --- Department of Medical Radiography and Radiological Sciences, Faculty of Health Sciences and Technology, Nigeria CO Ogbonna --- Radiology Department, Federal Medical Centre, Nigeria AO Imo --- Radiology Department, NigeriaBackground: With the advent of real time ultrasonography of the abdomen, the spleen is no longer an inaccessible organ. Wandering spleen is a rare entity with less than 500 cases reported in literature so far. -
A method of teaching clinical problem-solving skills to primary health care student nurses
Item type: Journal Article • Journal: South African Family Practice • Authors: A Truscott --- Division of Rural Health, Department of Family Medicine, South AfricaThe article provides a description of a method of teaching a clinical problem-solving process to primary health care nurses/clinical nurse practitioners (PHC nurses). The process was developed in the Soweto PHC Nurse Training Unit over the past 30 years as... -
The state of affairs of the public sector mammography service in the Free State Pprovince of South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: WS Harmse --- Department of Diagnostic Radiology, Faculty of Health Sciences, CS De Vries --- Department of Diagnostic Radiology, Faculty of Health Sciences,Background: The Cancer Association of South Africa stated that breast health services in South Africa were “fragmented and not comprehensive.” The aim of study was to investigate the current state of public sector mammography in the Free State, and to... -
Assessing the knowledge and perceptions of medical students from the Western Cape, South Africa, regarding the Millennium Development Goals
Item type: Journal Article • Journal: South African Family Practice • Authors: T Yeatman --- Division of Human Nutrition, Faculty of Health Sciences, N Koen --- Division of Human Nutrition, Faculty of Health Sciences, L De Ridder --- Division of Human Nutrition, Faculty of Health Sciences, B Fenn --- Division of Human Nutrition, Faculty of Health Sciences, L Wormsbacher --- Division of Human Nutrition, Faculty of Health Sciences, L Daniels --- Division of Human Nutrition, Faculty of Health Sciences,Background: Health science students are key players in implementing the Millennium Development Goals (MDG). Knowledge and understanding at university level is essential to achieve the goals by 2015. The primary objective of this study was to assess the knowledge and... -
The association between depression and adherence to antiretroviral therapy in HIV-positive patients, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: C Kitshoff --- Department of Family Medicine, L Campbell --- Department of Family Medicine, SS Naidoo --- Department of Family Medicine,Background: Depressive disorders are associated with poorer health outcomes in people living with human immunodeficiency virus infection and acquired immunodeficiency syndrome (PLHIV) and have been shown to contribute to non-adherence to antiretroviral therapy (ART) in Western contexts. Limited data from... -
Drug therapy, lifestyle modification and blood pressure control in a primary care facility, south of Johannesburg, South Africa: an audit of hypertension management
Item type: Journal Article • Journal: South African Family Practice • Authors: SC Onwukwe --- Department of Family Medicine, South Africa OB Omole --- Department of Family Medicine, South AfricaBackground: Hypertension management is suboptimal in many settings. We assessed blood pressure (BP) control according to target, the appropriateness of antihypertensive therapy and the extent of implementing lifestyle modification among hypertensive patients. -
The challenges experienced by nongovernmental organisations with regard to the roll-out of antiretroviral therapy in KwaZulu-Natal
Item type: Journal Article • Journal: South African Family Practice • Authors: J Michel --- Department of Health Studies, MC Matlakala --- Department of Health Studies,Background: Successful administration of antiretroviral therapy (ART) requires full adherence to the regimen by the patient. The introduction of ART needs a well-functioning health system with adequately trained health professionals, laboratory support, a constant supply of drugs and social systems... -
Evaluation of a project to reduce morbidity and mortality from traditional male circumcision in Umlamli, Eastern Cape, South Africa: outcome mapping
Item type: Journal Article • Journal: South African Family Practice • Authors: O Nwanze --- Division of Family Medicine and Primary Care, R Mash --- Division of Family Medicine and Primary Care,Background: Traditional circumcision is common among the amaXhosa in Umlamli, Eastern Cape. Circumcision is associated with high morbidity and mortality. The need to reduce complications was identified as a priority by the local community. The aim was to design, implement... -
Pain as a reason for primary care visits: cross-sectional survey in a rural and periurban health clinic in the Eastern Cape, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: EU Igumbor --- School of Public Health, University of the Western Cape, South Africa T Puoane --- School of Public Health, University of the Western Cape, South Africa SA Gansky --- School of Dentistry, University of California, USA O Plesh --- School of Dentistry, University of California, USABackground: The burden of pain in primary care has not been described for South Africa. This study aimed to determine the prevalence of pain in primary care and to characterise pain among adult patients attending a rural and a periurban... -
The perspectives of users of antiretroviral therapy on structural barriers to adherence in South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: A Kagee --- Department of Psychology, J Nothling --- Department of Psychology, B Coetzee --- Department of Psychology,Background: The effectiveness of antiretroviral therapy (ART) and the importance of adherence to treatment regimens are widely known. Yet, suboptimal adherence to ART and retention in care of patients still persists and, by many accounts, is fairly widespread. The aim... -
Advanced oral HIV-associated Kaposi sarcoma with facial lymphoedoema as an indicator of poor prognosis
Item type: Journal Article • Journal: South African Family Practice • Authors: L Feller --- Department of Periodontology and Oral Medicine, R Essop --- Department of Periodontology and Oral Medicine, MH Motswaledi --- Department of Dermatology, Faculty of Health Sciences, RAG Khammissa --- Department of Periodontology and Oral Medicine, J Lemmer --- Department of Periodontology and Oral Medicine,Rapidly progressive facial lymphoedoema that develops concurrently with or immediately after rapid enlargement of oral Kaposi sarcoma in human immunodeficiency virus (HIV) -seropositive persons forebodes death. Previously, we reported on three patients with HIV-associated Kaposi sarcoma who had not been... -
Rheumatoid arthritis
Item type: Journal Article • Journal: South African Family Practice • Authors: Mahmood Ally --- Department of Internal Medicine, Faculty of Health Sciences, Bridget Hodkinson --- Department of Medicine, Groote Schuur Hospital, Faculty of Health Sciences,Immune-mediated inflammatory disorders include a clinically diverse group of conditions that share similar pathogenic mechanisms. Conditions such as rheumatoid arthritis (RA), psoriasis, spondyloarthropathy, inflammatory bowel disease and connective-tissue disease are characterised by immune dysregulation and chronic inflammation. This review will... -
Tablet computers for recording tuberculosis data at a community health centre in King Sabata Dalindyebo Local Municipality, Eastern Cape: a proof of concept report
Item type: Journal Article • Journal: South African Family Practice • Authors: Don O’Mahony --- Department of Family Medicine, Graham Wright --- Department of Family Medicine,Background: Data at primary healthcare (PHC) clinics are handwritten in registers by nurses for submission to the District Health Information System (DHIS). Compared to pen and paper, data capture, using handheld computers, has fewer errors, is more efficient and is... -
Spirit(ed) away: preventing foetal alcohol syndrome with motivational interviewing and cognitive behavioural therapy
Item type: Journal Article • Journal: South African Family Practice • Authors: A Jansen Van Vuuren --- University of Cape Town, D Learmonth --- University of Cape Town,Foetal alcohol syndrome (FAS) is a growing concern in South Africa. In the Western Cape, prevalence rates for FAS are the highest in the world. Not surprisingly, the Western Cape also has some of the highest levels of alcohol consumption... -
End-user centeredness in antiretroviral therapy services in Nigerian public health facilities
Item type: Journal Article • Journal: South African Family Practice • Authors: RJ Chiegil --- Department of Health Studies, LI Zungu --- Department of Health Studies, K Jooste --- School of Nursing, University of Western Cape,Objective: To describe the perception of end users with regard to end-user centeredness in antiretroviral therapy (ART) service provision in Nigerian public health facilities. -
‘Children will always be children’: Exploring perceptions and experiences of HIV-positive children who may not take their treatment and why they may not tell
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rachel Kawuma --- Medical Research Council/Uganda Virus Research Institute (MRC/UVRI) Uganda Research Unit on AIDS, Uganda Sarah Bernays --- London School of Hygiene and Tropical Medicine, United Kingdom Godfrey Siu --- Medical Research Council/Uganda Virus Research Institute (MRC/UVRI) Uganda Research Unit on AIDS, Uganda Tim Rhodes --- London School of Hygiene and Tropical Medicine, United Kingdom Janet Seeley --- Medical Research Council/Uganda Virus Research Institute (MRC/UVRI) Uganda Research Unit on AIDS, UgandaHIV-positive children and young people may face substantial social barriers to maintaining appropriate levels of adherence to antiretroviral therapy (ART) during childhood and adolescence. In this paper, we focus on these children's voices and the challenges they face growing up... -
Colds, flu and coughing: a review of over-the-counter nasal therapies in general practice
Item type: Journal Article • Journal: South African Family Practice • Authors: J Van Schoor --- Amayeza Info Services,Nasal congestion due to the common cold occurs because of dilation of the blood vessels, leading to swelling of the nasal mucosal epithelium. This narrows nasal passages, which are further blocked by increased mucus production. Nasal sprays and drops are... -
Does the knowledge of the human immunodeficiency virus serostatus influence the clinical diagnostic proficiency of Kaposi's sarcoma?
Item type: Journal Article • Journal: South African Family Practice • Authors: LJ Van Bogaert --- National Health Laboratory Service,Objectives: Kaposi's sarcoma is an acquired immunodeficiency syndrome (AIDS)-defining illness. A spectrum of non- Kaposi's sarcoma clinical and histopathological mimickers contributes to the potential over- or underdiagnosis of Kaposi's sarcoma. The aim of this audit was to investigate the clinical... -
Job Retention Factors, Perceived Career Mobility and Organisational Commitment in the South African Financial Sector
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Tanzia F. Joāo --- University of South Africa, Melinde Coetzee --- University of South Africa,This study explores job retention factors, perceived career mobility and organisational commitment among early career employees. Participants were professional auditors, accountants and financial staff (N = 82) in the finance industry in South Africa (57% = females, 70% White, age... -
Mmaskitlana Play Therapy: A Case Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Rebecca Salang Modikwe --- University of South Africa, Ansie Lessing --- University of South Africa,This article explores the potential of Mmaskitlana as a form of therapy for children with emotional disorders. A case study is presented describing the use of Mmaskitlana with one learner with emotional problems from sexual abuse. Interview data and interpretative... -
Is there still a role for Caesarean section in preventing vertical HIV transmission in the era of highly active antiretroviral therapy?
Item type: Journal Article • Journal: South African Family Practice • Authors: HM Sebitloane --- Department of Obstetrics and Gynaecology,Human immunodeficiency virus (HIV) may be transmitted from an infected mother to her child during pregnancy, delivery or breastfeeding. Without any intervention, transmission rates may range from 15–45%. However, this can be reduced to < 5% with effective drug therapy... -
Contraceptive knowledge and practice among HIV-positive women receiving antiretroviral therapy at a district hospital in KwaZulu-Natal
Item type: Journal Article • Journal: South African Family Practice • Authors: YS Somera --- ART Department, GJ Crookes Hospital Department of Family Medicine, A Ross --- Department of Family Medicine,Objectives: To determine the knowledge and use of contraceptives by HIV-positive women attending an ART clinic. -
Exercise prescription in the management of rheumatoid arthritis
Item type: Journal Article • Journal: South African Family Practice • Authors: K Nolte --- Department of Biokinetics, DC Janse van Rensburg --- Section Sports Medicine, University of Pretoria,Background: Over the last few years, the types of exercises prescribed for patients with rheumatoid arthritis (RA) have changed. There is also increasing knowledge on the physical status and physical activity levels of these patients. This article aims to give... -
Constipation in children
Item type: Journal Article • Journal: South African Family Practice • Authors: RA Brown --- Department of Paediatric Surgery, RJ Wood --- Red Cross War Memorial Children's Hospital,Constipation in children is a universal problem, occurring in 0.7–28% of the population. The exact aetiology is unknown, but the majority of children have a functional, rather than organic, aetiology. Symptoms associated with constipation include abdominal pain, a poor appetite... -
An overview of pharmacotherapy-induced ototoxicity
Item type: Journal Article • Journal: South African Family Practice • Authors: Schellack Natalie --- Department of Pharmacy, Faculty of Health Sciences, Naude Alida --- Department of Pharmacy, Faculty of Health Sciences,This article provides an overview of ototoxic medication, as well as different pharmacological and audiological monitoring strategies. Although ototoxic medications play an important role in modern medicine, they also have the capacity to do great harm and lead to significant... -
Is screening for microalbuminuria in patients with type 2 diabetes feasible in the Cape Town public sector primary care context? A cost and consequence study
Item type: Journal Article • Journal: South African Family Practice • Authors: HO Ibrahim --- Division of Family Medicine and Primary Care, D Stapar --- Division of Family Medicine and Primary Care, B Mash --- Division of Family Medicine and Primary Care,Background: Type 2 diabetes contributes significantly to the burden of disease in South Africa. Proteinuria is a marker for chronic kidney and cardiovascular disease. All guidelines recommend testing for microalbuminuria because intervention at this stage can prevent or delay the... -
Consultation outcomes for musculoskeletal conditions at two community health centres in Cape Town
Item type: Journal Article • Journal: South African Family Practice • Authors: MK Namane --- Metro District Health Services, Western Cape Department of Health, Community Health Division and Family Medicine Division, Faculty of Health Sciences, Stellenbosch and Family Medicine Division, Faculty of Health Sciences, AA Kalla --- Head of Unit, Rheumatic Diseases Unit, Faculty of Health Sciences, TN Young --- Centre for Evidence-Based Medicine, Community Health Division Faculty of Health Sciences,Objectives: To compare the proportion of patients with documented diagnoses and management plans when they presented with musculoskeletal complaints at two community health centres (CHCs) using two models of care: one with a rheumatology outreach service and the other with... -
Does thinking about the meaning of life make you happy in a religious and globalised world? A 75-nation study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mohsen Joshanloo --- Victoria University of Wellington, New Zealand Dan Weijers --- Chungbuk National University, South KoreaThis paper reports on a multilevel study of 75 nations, which tests two hypotheses that arose from considering Tolstoy's experience of thinking about the meaning and purpose of life. The globalisation-as-exacerbator hypothesis predicts that as globalisation increases, the relationship between... -
Felicitas Publica and community well-being: nourishing relational goods through dialogic conversations between deprived and privileged populations
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Helena Águeda Marujo --- School of Social and Political Sciences, Portugal Luis Miguel Neto --- School of Social and Political Sciences, PortugalThis article discusses the theoretical justifications, presumed relevance and value of using community interventions designed to be appreciative and strengths based, participatory and conversational, context sensitive and value driven, to promote well-being actions and coordinated meaning between privileged persons and... -
Self-realisation and meaning making in the face of adversity: a eudaimonic approach to human resilience
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Carol D. Ryff --- Institute on Aging, University of Wisconsin-Madison, United StatesThis article considers a eudaimonic approach to psychological well-being built on the integration of developmental, existential and humanistic formulations as well as distant writings of Aristotle. Eudaimonia emphasizes meaning-making, self-realisation and growth, quality connections to others, self-knowledge, managing life and... -
Legal professionals’ views on pre-trial therapy in cases of child sexual abuse in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ansie Fouché --- North-West University, South Africa Liana (MP) Le Roux --- University of Pretoria, South AfricaThe aim of this study is to report on a preliminary qualitative inquiry into the views of legal professionals in South Africa regarding pre-trial therapy for victims of child sexual abuse (CSA). Applying purposive and snowball sampling, 15 experienced state... -
The prediction of turnover intention by means of employee engagement and demographic variables in a telecommunications organisation
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mandu Sibiya --- School of Applied Human Sciences, South Africa Johanna H. Buitendach --- School of Applied Human Sciences, South Africa Herbert Kanengoni --- School of Applied Human Sciences, South Africa Shaida Bobat --- School of Applied Human Sciences, South AfricaThis study sought to determine the prediction of turnover intention by employee engagement and demographic variables in a large South African information and communication technology (ICT) organisation. Cross-sectional survey data was collected from the organisation. Using a sample of 2276... -
Public holidays as lieux de mémoire: nation-building and the politics of public memory in South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Sabine Marschall --- Cultural and Heritage Tourism Programme, South AfricaThis article engages with public holidays in post-apartheid South Africa as lieux de mémoire, ‘sites of memory’ that preserve particular interpretations of historical events and selected heroes for inscription into the collective memory of the nation. It first traces the... -
From ‘One Namibia, one Nation’ towards ‘Unity in Diversity’? Shifting representations of culture and nationhood in Namibian Independence Day celebrations, 1990–2010
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael Uusiku Akuupa --- Dept. of Anthropology and Sociology, South Africa Godwin Kornes --- Dept. of Anthropology and African Studies, GermanyIn 2010 Namibia celebrated its twentieth anniversary of independence from South African rule. The main celebrations in the country's capital Windhoek became the stage for an impressively orchestrated demonstration of maturing nationhood, symbolically embracing postcolonial policy concepts such as ‘national... -
The Human Economy Project: first steps
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: John Sharp --- The Human Economy Project, Faculty of Humanities, South Africa Theodore Powers --- The Human Economy Project, Faculty of Humanities, South Africa Vito Laterza --- The Human Economy Project, Faculty of Humanities, South AfricaThe Human Economy Project is interdisciplinary in scope, but relies extensively on anthropological research methods. These methods are an appropriate counter to the methods adopted in mainstream economics, which has been criticised for its isolation from ‘the ordinary business of... -
On law and legality in post-apartheid South Africa: insights from a migrant street trader
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jürgen Schraten --- The Human Economy Project, Faculty of Humanities, South AfricaThis article focuses on the experience of law and legality by a migrant street trader in post-apartheid South Africa. The experiences of this stall vendor are analysed alongside theoretical notions of law and the legal system. The ways that law... -
Just living: genealogic, honesty and the politics of apartheid time
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Kathleen Lorne McDougall --- Department of Anthropology, South Africa“We were just living,” I was told of growing up an Afrikaner as apartheid was born. Is it possible for living at this time to be anything but political? To say “we were just living” of being an Afrikaner at... -
Warriors of the rainbow nation? South African rugby after apartheid
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Isak Niehaus --- Department of Social Anthropology, United KingdomIn this article I seek to account for the special appeal of rugby to white, particularly Afrikaner, men in South Africa, by treating rugby as a social phenomenon. I suggest that at a metaphorical level formulaic elements of the sport... -
Planned intervention and organisational development: the role of leadership in change initiatives
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Victor E. Dike --- National University,Every system - organisation or human being - has the tendency of striving to change for the better. Although the process can be planned or unplanned, it involves continuous adjustment to a new environment. This paper focuses on the role... -
Productivity and cost analysis of semi-mechanised and mechanised systems on the Viphya forest plantations in Malawi
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Elisha Ngulube --- Forest Postgraduate Programme, Plant Sciences Complex, South Africa Michal Brink --- Forest Postgraduate Programme, Plant Sciences Complex, South Africa Paxie W Chirwa --- Forest Postgraduate Programme, Plant Sciences Complex, South AfricaAt least 200 000 m3 of timber is harvested annually using semi-mechanised harvesting systems on the Viphya forest plantations in Malawi. Although these systems have long been used on the Viphya, no investigation on their productivity has so far been... -
Genetic diversity and gene flow in Clarias gariepinus from Lakes Victoria and Kanyaboli, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JE Barasa --- Department of Fisheries and Aquatic Sciences, Kenya R Abila --- Department of Fisheries Management and Aquaculture Technology, Kenya JP Grobler --- Department of Genetics, South Africa OG Dangasuk --- Department of Biological Sciences, Molecular Genetics Section, Kenya MN Njahira --- Biosciences eastern and central Africa - International Livestock Research Institute Hub (BecA-ILRI Hub), Kenya B Kaunda-Arara --- Department of Fisheries and Aquatic Sciences, KenyaThe African catfish Clarias gariepinus is an important species in the rapidly expanding aquaculture industry in East Africa. Most Kenyan catfish farmers use stocks with unknown genetic characteristics, with uncertified seeds and inter-basin exchange of brood stocks threatening the genetic... -
Larval development reflects biogeography in two formerly synonymised southern African coastal crabs
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Papadopoulos --- Molecular Zoology Laboratory (Aquatic Division), Department of Zoology, South Africa PR Teske --- Molecular Zoology Laboratory (Aquatic Division), Department of Zoology, South AfricaThe southern African crab Hymenosoma orbiculare was recently split into five distinct species, of which three are estuarine/coastal and have peripatric distributions that are linked to temperature-defined marine bioregions. This suggests that the species’ ranges may be limited by physiological... -
HIV-serostatus disclosure in the context of free antiretroviral therapy and socio-economic dependency: experiences among women living with HIV in Tanzania
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Leah F Bohle --- Institute for Medical Microbiology, Germany Hansjörg Dilger --- Institute of Social and Cultural Anthropology, Germany Uwe Groß --- Institute for Medical Microbiology, GermanyThe worldwide implementation of free antiretroviral therapy (ART) raised great hopes among policy makers and health organisations about the positive changes it would bring about in attitudes and behaviours towards HIV and AIDS, as well as for infected people's lives... -
Tangible skill building and HIV youth prevention intervention in rural South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jill Hanass-Hancock --- Health Economics and HIV/AIDS Research Division (HEARD), South AfricaThere have been countless youth programmes throughout Africa resulting in increased knowledge of HIV, but all too often there is a discrepancy between knowledge and behaviour change. According to available literature, successful projects need to consider the context in which... -
Reproductive behaviour among women on antiretroviral therapy in Botswana: mismatched pregnancy plans and contraceptive use
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Michelle M Schaan --- University of Kwazulu-Natal, South Africa Myra Taylor --- University of Kwazulu-Natal, South Africa Richard Marlink --- Harvard School of Public Health AIDS Initiative, USAUnderstanding pregnancy planning and contraceptive use is important in preventing unplanned/unwanted pregnancies among women on antiretroviral therapy (ART). Through a cross-sectional survey of 155 women living with HIV on ART in Botswana (mean age = 36), bivariate/multivariate analyses were used... -
The dynamics of local innovations among formal and informal enterprises: Stories from rural South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Alexandra Luis Mhula Links --- Human Sciences Research Council (HSRC), South Africa Tim Hart --- Human Sciences Research Council (HSRC), Pretoria, South Africa; Department of Sociology and Social Anthropology, Stellenbosch University, South Africa Peter Jacobs --- Human Sciences Research Council (HSRC), South AfricaExploiting the developmental potential of innovation for marginalised communities requires a context-specific understanding of the features and mechanics of innovation. In this article we explore the nature of innovation with the aid of evidence collected from formal and informal enterprises... -
Exploring informal sector community innovations and knowledge appropriation: A study of Kashmiri pashmina shawls
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Fayaz Ahmad Sheikh --- Centre for Studies in Science Policy, School of Social Sciences, IndiaThe informal sector has become an increasingly popular subject of study. This sector has been a prominent feature of the development landscape of many countries around the globe. It is increasingly becoming the major source of employment in third world... -
Variations in moult, morphology, movement and survival rates of the Sombre Greenbul Andropadus importunus within southern Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Bo T Bonnevie --- Information Technology Division, South AfricaRinging data from the South African bird ringing unit, SAFRING, were analysed to explore variations and trends in population parameters of the Sombre Greenbul Andropadus importunus in southern Africa. Adult and juvenile body mass increased southwards, whereas the relative sizes... -
Is the Cape White-eye Zosterops virens or Zosterops capensis?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Lindy J Thompson --- School of Life Sciences, South Africa Barry Taylor --- School of Life Sciences, South AfricaThe recent scientific literature employs three binomial names for the southern African endemic bird known as the Cape White-eye: Zosterops capensis, Z. pallidus and Z. virens. This unacceptable inconsistency reflects the contention regarding white-eye systematics. Recent molecular work by Oatley... -
Positive work experiences and life satisfaction: the moderating role of gender
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jillian C. Williamson --- University of Johannesburg, South Africa Madelyn Geldenhuys --- University of Johannesburg, South AfricaThis study investigated the effects of work engagement and psychological meaningfulness on life satisfaction taking into account the moderating effect of gender. A cross-sectional research design was used to capture data on satisfaction with life, work engagement and psychological meaningfulness... -
Towards happiness interventions: construct clarification and intervention methodologies
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Llewellyn Ellardus van Zyl --- Optentia Research Focus Area, South Africa Sebastiaan Rothmann --- Optentia Research Focus Area, South AfricaThe aim of this study was to investigate the main streams of research on happiness, the approaches/models flowing from these philosophies and the methodology of happiness interventions. A systematic review was performed outlining the authors, the purpose of the research,... -
Helen Suzman: a psychobiographical — psychosocial developmental trajectory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Paul Fouchè --- University of the Free State, South Africa Carla Nel --- University of the Free State, South Africa Roelf van Niekerk --- Nelson Mandela Metropolitan University, South AfricaThe primary aim of this study was to describe Helen Suzman's (1917–2009) psychosocial developmental trajectory within her socio-historical context through the application of the stage based description of psychosocial development by Erikson. Two methodological strategies were used. Alexander's psychobiographical model... -
Fever in children: how to minimise risk and provide appropriate therapy
Item type: Journal Article • Journal: South African Family Practice • Authors: Robin J Green --- Department of Paediatrics and Child Health, South Africa Adéle Pentz --- Department of Paediatrics and Child Health, South AfricaThe management of fever in children is a subject that garners many different opinions and interventions. Various approaches seem to be acceptable, from the physician who never uses antipyretic medication, to the use of multiple combination therapies. Following the recent... -
Social sciences and research ethics in developing countries: The perspective from Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Emmanuel M. Akpabio --- Department of Geography and Regional Planning, Nigeria Idorenyin F. Esikot --- Department of Philosophy, NigeriaThis study seeks to show how social science-related disciplines in Nigerian universities understand and incorporate ethical principles in research settings within the framework of general institutional practices. We used the University of Uyo, Nigeria, to specifically and empirically explore these... -
Optimising drought adaptation by small-scale farmers in southern Africa through integration of indigenous and technologically-driven practices
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Rudzani A. Makhado --- Unit Manager, Research & Evaluation Section, South Africa Amani T. Saidi --- Stakeholder Manager, South African Environmental Observation Network, South Africa Phumudzo P. Tshikhudo --- Scientist, Plant Health Directorate, Department of Agriculture, South AfricaThis paper reviews and synthesises research-based literature on drought adaptation practices among small-scale farmers in southern Africa. The paper reviews the existing literature in order to identify ways in which small-scale poor farmers in southern Africa adapt to the effects... -
Comparative study on municipal solid waste management systems of Maputo City, Mozambique and Chongqing City, China
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Letícia Sarmento dos Muchangos --- Faculty of Urban Construction and Environmental Engineering, People's Republic of China Yuanyuan Liu --- Faculty of Urban Construction and Environmental Engineering, People's Republic of China Baizhan Li --- Faculty of Urban Construction and Environmental Engineering, People's Republic of ChinaThe Municipal Solid Waste Management (MSWM) system in Maputo City, Mozambique, presents several flaws and challenges mainly related to limited financial, human and material resources, as well as low public awareness and participation. This is a South–South comparison study between... -
Anaesthesia and the developing brain
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Jansie Prozesky --- Department of Pediatric Anesthesia, USAIncreasing concern about the effect of anaesthesia on the infant and young child is being raised by healthcare practitioners, as well as the public. Immature neurons exposed to anaesthesia may lead to apoptosis and long-term neurobehavioural deficits in animals. The... -
The use of ultrasonography in the perioperative management of penetrating chest trauma with indwelling blade
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: S Kudsk-Iversen --- Stanger Hospital, South Africa R Matos-Puig --- Stanger Hospital, South AfricaWe report on the anaesthetic and postoperative analgesic management of a patient presenting with a single penetrating thoracic injury, with radiological confirmation of a foreign object still present in the thorax. The patient underwent an emergency right posterolateral thoracotomy. We... -
HIV in Harare: The role and relevance of social stigma
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Stephen O'Brien --- School of Humanities and Social Science, Australia Alex Broom --- School of Social Science, AustraliaHIV is a significant social, political and economic problem in Zimbabwe. However, few researchers have explored peoples’ experiences of living with HIV in that country. Drawing on 60 qualitative interviews conducted with Zimbabweans living in Harare in 2010, this paper... -
Communication characteristics of young children with HIV in South Africa as reported by some physicians
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Michelle Hattam --- Con Amore School, South Africa Brenda Louw --- Department of Audiology and Speech-Language Pathology, United States Salome Geertsema --- Communication Pathology, South AfricaHIV has been shown to have significant effects on the development of a child. Currently, there is limited South African research regarding HIV and specific characteristics of communication development, and the treatment thereof, in the child infected with HIV. The... -
Industrial development for Africa: Trade, technology and the role of the state
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Padmashree Gehl Sampath --- United Nations Conference on Trade and Development, SwitzerlandThe discourse on the nature of the developmental state and industrial policy options for Africa has become central to debates on how to promote overall growth and prosperity in the continent. This article poses a fundamental question on the nature... -
Foreign direct investment and local technological capabilities in least developed countries: some evidence from the Tanzanian manufacturing sector
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Bitrina Diyamett --- Science, Technology and Innovation Policy Research Organisation (STIPRO), Tanzania Musambya Mutambla --- Science, Technology and Innovation Policy Research Organisation (STIPRO), TanzaniaForeign direct investment has been found to be one of the very important ways of building local technological capabilities for developing countries, and an important channel through which international diffusion of knowledge and technology takes place. While this has been... -
Murder and the whole city
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Kelly Gillespie --- Department of Anthropology, South AfricaHenri Lefebvre's The Urban Revolution makes a claim for the importance of seeing the whole urban form in our analyses of cities. He argues that we too often get trapped into a view of the urban that prioritises “fragments” of... -
Practicing pan-Africanism: an anthropological perspective on exile-host relations at Kongwa, Tanzania
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Christian A. Williams --- Institute for Reconciliation and Social Justice, South AfricaThis paper explores exile-host relations at Kongwa, where southern Africa's first guerrilla soldiers lived alongside villagers in rural, central Tanzania between 1964 and 1978. Drawing from the author's previous research on SWAPO's exile camps, recent publications about the ANC in... -
Edgy Edgars: The Restless Youth in Suzanna Nelson's Nightmare along the River Nile: A Story of Twentieth Century Slavery
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Paul M. Mukundi --- Department of Literature, KenyaSuzanna E. Nelson's first novel, Nightmare along the River Nile: A Story of Twentieth Century Slavery shows the danger faced by youth during war. While the young adult stage of life is generally characterized by unsteadiness—social, professional and otherwise—because individuals... -
Historification and Kenya's Plural Identities: Re-reading Ngugi's Historiography
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Jairus Omuteche --- Department of Language and Literature Education, KenyaThis article critiques Ngugi wa Thi ong'o's strategies of constructing nationalism and heroism in some of his creative works. This critical re-reading focuses on Ngugi's choice and projections of characters in relation to historical epoch and setting, evaluating how the... -
The Intersection of the Self and History in Kenyan Autobiographies
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Jennifer Muchiri --- Department of Literature, KenyaLife writing has increasingly become a popular genre which calls for sustained interrogation and analysis of the narratives produced. The autobiography is not only the story of the narrating subject but can be read as the history of the society... -
Narrative counselling with a young engineer
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacobus G. Maree --- Faculty of Education, South Africa Erna W. Gerryts --- Faculty of Education, South AfricaThis case study applied a narrative approach to develop the sense of self as a career resource for a young male engineer in his first working year. The participant client attended eight sessions lasting 60 to 90 minutes each over... -
The relationship between employees’ experience of performance management and work engagement within a South African organisation
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Janko Kotzé --- Department of Industrial Psychology, South Africa Sanet van der Westhuizen --- Department of Industrial Psychology, South Africa Elzabé Nel --- Department of Industrial Psychology, South AfricaThe study investigated the relationship between employees’ experience of performance management and work engagement. Participants were a convenience sample of employed adults (N=202; females=59%, middle management = 48%, White = 54%, tenure more than 9 years = 48%) in an organisation in the vehicle and asset-based... -
Performance appraisal systems — equity perceptions of mathematics teachers: an exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Michael Kainose Mhlolo --- Faculty of Education, South AfricaThis study investigated equity perceptions of a school based performance appraisal system in a subject discipline. Participants were 110 mathematics teachers (females = 10%) and 12 school principals (females = 25%). They completed a questionnaire on distributive, procedural and interactional justice regarding the performance... -
Analysis of active rotenone concentration during treatment of the Rondegat River, Cape Floristic Region, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: E Slabbert --- Department of Microbiology, South Africa MS Jordaan --- CapeNature Scientific Services, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaMost endemic freshwater fish species of the Cape Floristic Region are listed as threatened, due mainly to the impacts of invasive alien fish species. The piscicide rotenone has been identified as a potential tool to aid the conservation of indigenous... -
Diagnosing the sexual pattern of Diplodus cervinus hottentotus (Pisces: Sparidae) from southern Angola
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AC Winkler --- Department of Ichthyology and Fisheries Science, South Africa CV Santos --- Faculdade Ciências da Universidade Agostinho Neto (FCUAN), Angola WM Potts --- Department of Ichthyology and Fisheries Science, South AfricaThe sexual pattern of Diplodus cervinus hottentotus was investigated in southern Angola. Females were significantly smaller and found in greater numbers, with an adult sex ratio of 1.0:0.7, F:M. Histological observations of preserved gonads indicated that the species is a... -
Estimation of size at first maturity in two South African coral species
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PH Montoya-Maya --- Oceanographic Research Institute, Marine Parade, South Africa AHH Macdonald --- School of Life Sciences, South Africa MH Schleyer --- Oceanographic Research Institute, Marine Parade, South AfricaThe corals Acropora austera and Platygyra daedalea have been the subject of extensive reproductive and population genetic studies in the iSimangaliso Wetland Park (iSimangaliso), on the KwaZulu-Natal coast, eastern South Africa. Despite this, estimates of size at first maturity in... -
Unravelling population structure of black musselcracker Cymatoceps nasutus: evidence for multiple populations in South African coastal waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TS Murray --- Department of Ichthyology and Fisheries Science, South Africa G Gouws --- South African Institute for Aquatic Biodiversity, South Africa M Mwale --- South African Institute for Aquatic Biodiversity, South Africa BQ Mann --- Oceanographic Research Institute, South Africa PD Cowley --- South African Institute for Aquatic Biodiversity, South AfricaGenetic studies on South African marine fishes have shown that many species exist as single, well-mixed stocks throughout their core distribution. The black musselcracker or poenskop Cymatoceps nasutus is a slow-growing, late-maturing and long-lived sparid (Perciformes: Sparidae) that is endemic... -
Distribution of Lilian's Lovebirds in Malawi
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tiwonge I Mzumara --- School of Life Sciences, South Africa Michael R Perrin --- School of Life Sciences, South Africa Colleen T Downs --- School of Life Sciences, South AfricaLilian's Lovebird Agapornis lilianae is regarded as a mopane Colophospermum mopane woodland specialist. Its global population is sparse and is spread along the Zambezi valley with little known about its current distribution and status. We explored the current distribution of... -
The disjunctive domination number of a graph
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Wayne Goddard --- Department of Mathematical Sciences, USA Michael A. Henning --- Department of Mathematics, South Africa Charles A. McPillan --- Department of Mathematical Sciences, USAFor a positive integer b, we define a set S of vertices in a graph G as a b-disjunctive dominating set if every vertex not in S is adjacent to a vertex of S or has at least b vertices... -
Self-efficacy, medication beliefs and adherence to antiretroviral therapy by patients attending a health facility in Pretoria
Item type: Journal Article • Journal: South African Family Practice • Authors: Adegoke Adefolalu --- Department of Health Studies, South Africa Zerish Nkosi --- Department of Health Studies, South Africa Steve Olorunju --- Biostatistics Unit, South Africa Palesa Masemola --- , South AfricaBackground: Self-efficacy and medication beliefs are known factors that influence adherence to treatment in chronic medical conditions. We carried out a cross-sectional study on human immunodeficiency virus (HIV)-infected patients with the aim of determining the predictive relationship between these two... -
Development of entrepreneurial potential among undergraduates of a private university in Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Akeem Ayofe Akinwale --- Department of IRPM, NigeriaBased on the theory of planned behaviour, the present article examines the development of entrepreneurial potential among the undergraduates of a private university in north-central Nigeria. A total of 250 randomly selected undergraduates from various departments participated in a survey... -
Hardiness as predictor of work readiness: a preliminary exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gideon Van Dyk --- Department of Industrial Psychology, Faculty of Military Science, South AfricaThis study explored hardiness as a possible predictor of work readiness in cross-cultural settings. In order to explore which factors may elicit hardiness, the sub-scales were identified and explored. Participants were from two African countries, namely South Africa (n =... -
Fortigenic qualities of psychotherapists in practice
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Erica F De Lange --- Africa Unit for Transdisciplinary Health Research, South Africa Shingairai Chigeza --- Africa Unit for Transdisciplinary Health Research, South AfricaThis brief report presents preliminary findings on the exploration of strengths (fortigenic) qualities of psychotherapists which can buffer them against compassion fatigue. Participants were seven South African psychologists in private practice. Data were collected using qualitative interviews and thematically analysed... -
Generational forgiveness and historical injustices: perspectives of descendants of victims of Apartheid-era gross human rights violations in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Cyril K. Adonis --- Department of Interdisciplinary Research, College of Graduate Studies, South AfricaThis study explored the issue of generational forgiveness in the political sphere in contemporary South Africa. It is based on qualitative interviews conducted with 20 children and grandchildren (females = 10, males = 10) of victims of Apartheidera gross human rights violations. The interview... -
Meaning, happiness and psychological distress: correlates and qualitative reflections
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Directorate of Higher Education Development and Support (HEDS), South AfricaThe study investigated the concepts of meaning and happiness within an African context. Two hundred and forty-one participants (Mean age = 20.52 years, SD = 1.73, female = 57.67%) completed surveys on meaning, happiness and psychological distress. A subgroup of... -
The evaluation of an equine-assisted therapy programme with a group of boys in a youth care facility
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Christa Boshoff --- Community Psychosocial Research, South Africa Herman Grobler --- Community Psychosocial Research, South Africa Alida Nienaber --- Community Psychosocial Research, South AfricaThe goal of this study was to evaluate the efficacy of an equine-assisted therapy programme aimed at improving the psychological well-being of boys in a custodial school of industry. Participants were 39 boys who live in a youth care facility... -
Appreciative inquiry evaluation of child and adolescent community interventions in South Africa and United Kingdom
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: David J. Edwards --- Department of Psychology, South AfricaThis international, qualitative study comparatively evaluated South African and United Kingdom child and adolescent community interventions. Appreciative inquiry information was gathered from five staff members in community centres in each country. South African practitioners represented various psychology categories, student, educational,... -
Effects of irrigation water quality on vegetables Part 1: Yield and aesthetical appeal
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Loyiso L Mzini --- Döhne Agricultural Development Institute, South Africa Kevin Winter --- Department of Environmental and Geographical Sciences, South AfricaResearch on the use of greywater for irrigation has focused attention largely on greywater quality and biomass of the crop, but not on the quality of edible vegetable crops, whereas aesthetical appeal of the vegetables determines the acceptance in fresh... -
Development of a diabetes mellitus nutritional management manual for South African healthcare professionals
Item type: Journal Article • Journal: South African Family Practice • Authors: U Rausch --- Division of Human Nutrition, South Africa IL Labuschagne --- Division of Human Nutrition, South Africa MJ Lombard --- Division of Human Nutrition, South AfricaBackground: The objective was to develop a standardised education manual for healthcare professionals in South Africa on the nutritional management of diabetes mellitus. -
Indigenous knowledge systems – a rich appropriate technology resource
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Tharakan --- Department of Chemical Engineering, United States of AmericaIndigenous knowledge systems (IKS) comprise knowledge systems that have developed within various societies’ independent of, and prior to, the advent of the modern scientific knowledge system. IKS from various cultures evolved into broad and comprehensive knowledge systems, such as those... -
Breeding polyploid varieties of tropical acacias: progress and prospects
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: A Rod Griffin --- School of Biological Sciences, Australia Nghiem Quynh Chi --- Institute for Forest Tree Improvement and Biotechnology, Vietnam Jane L Harbard --- School of Biological Sciences, Australia Do Huu Son --- Institute for Forest Tree Improvement and Biotechnology, Vietnam Christopher E Harwood --- School of Biological Sciences, Australia Aina Price --- School of Biological Sciences, Australia Tran Duc Vuong --- Institute for Forest Tree Improvement and Biotechnology, Vietnam Anthony Koutoulis --- School of Biological Sciences, Australia Ha Huy Thinh --- Institute for Forest Tree Improvement and Biotechnology, VietnamThe paper reviews a decade of progress with breeding new polyploid varieties of Acacia mangium and other tropical acacias in Vietnam, and outlines plans for future strategies to complement conventional diploid breeding. Polyploid breeding is a means of introducing diversity... -
Acacia mearnsii industry overview: current status, key research and development issues
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Julian Moreno Chan --- Institute for Commercial Forestry Research, South Africa Philip Day --- NTE Company (Pty) Ltd, South Africa John Feely --- Forestry consultant, South Africa Rob Thompson --- NCT Forestry Co-operative Ltd, South Africa Keith M Little --- School of Natural Resource Management, South Africa Craig H Norris --- NCT Forestry Co-operative Ltd, South AfricaAcacia mearnsii De Wild (black wattle) is an important plantation species for tannin production and woodchip exports in South Africa and Brazil. This study provides an updated overview of the black wattle industries in both countries, including planted areas and... -
The factors that attract healthcare professionals to and retain them in rural areas in South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: A Rose --- Faculty of Health Sciences, Department of Community Health, South Africa E Janse van Rensburg-Bonthuyzen --- Centre for Health Systems Research and Development, Faculty of Humanities, South AfricaBackground: Attracting healthcare professionals (HCPs) to rural areas and retaining them there remains a challenge. Current retention strategies focus on the factors that cause people to leave rural areas, but these strategies continue to fail to retain HCPs in these... -
The effectiveness of the implementation of the Cape Triage Score at the emergency department of the National District Hospital, Bloemfontein
Item type: Journal Article • Journal: South African Family Practice • Authors: SAN Gordon --- Faculty of Health Sciences, Department of Family Medicine, South Africa H Brits --- Faculty of Health Sciences, Department of Family Medicine, South Africa JE Raubenheimer --- Faculty of Health Sciences, Department of Biostatistics, South AfricaBackground: The need for an appropriate South African triage system led to the development of the Cape Triage Score (CTS), a system to prioritise emergency departments’ workloads. This study evaluated the effectiveness of the CTS at the National District Hospital... -
Temporal changes in the macrobenthos of sandprawn (Callichirus kraussi) beds in Swartvlei Estuary, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Nicholas Hanekom --- South African National Parks, South Africa Ian A Russell --- South African National Parks, South AfricaWater quality was recorded quarterly along the length of the Swartvlei estuary (2002–2014), while seagrass biomass and macrobenthic abundance were measured annually in intertidal sandprawn beds (2009–2014). Despite relatively stable, marine-dominated conditions the abundance of the sandprawn Callichirus kraussi recorded... -
Preliminary examination of hatching season and growth of Engraulicypris sardella (Pisces: Cyprinidae) larvae and juveniles in Lake Malawi
Item type: Journal Article • Journal: African Zoology • Authors: Shinsuke Morioka --- Department of Aquaculture and Fisheries Science, Bunda College of Agriculture, Malawi Emmanuel Kaunda --- Department of Aquaculture and Fisheries Science, Bunda College of Agriculture, MalawiThe hatching period and the growth of Malawian cyprinid Engraulicypris sardella larvae and juveniles collected from two sites along the southwestern shoreline of Lake Malawi were investigated using otolith increment information. The lapillus was used to determine the age in... -
Abundance of the endangered Cape parrot, Poicephalus robustus, in South Africa: implications for its survival
Item type: Journal Article • Journal: African Zoology • Authors: Colleen T. Downs --- School of Botany and Zoology, University of KwaZulu-Natal, South AfricaFactors affecting the decline of the endangered Cape parrot, which is endemic to South Africa, are presented. Its abundance and status were investigated during annual intensive national surveys. The merits of such a census are reported. Presence of birds was... -
Burrow utilization by springhares (Pedetes capensis) in the Eastern Cape, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: D.M. Peinke --- Department of Zoology and Entomology, South Africa C.R. Brown --- Department of Zoology and Entomology, South AfricaThe use of burrows by springhares was investigated in the Eastern Cape, South Africa using radio telemetry. Springhares utilized 4–27 different burrows scattered over areas ranging from 0.6–28.5 ha, with maximum distances of 170–1000 m between burrows. Springhares frequently changed... -
The effect of ungulate grazing on a small mammal community in southeastern Botswana
Item type: Journal Article • Journal: African Zoology • Authors: Eli R. Saetnan --- University of Illinois at Urbana-Champaign, U.S.A. Christina Skarpe --- Norwegian Institute for Nature Research, NorwayUngulates can reduce the quantity of food available for other herbivores in general or reduce the available cover for small mammals in particular. On the other hand, browsing and grazing may facilitate foraging by other mammals if the quality and... -
Biogeographical patterns in the fauna associated with southern African mussel beds
Item type: Journal Article • Journal: African Zoology • Authors: Wendy Hammond --- Centre for Invasion Biology and Marine Biology Research Institute, University of Cape Town, South Africa Charles Griffiths --- Centre for Invasion Biology and Marine Biology Research Institute, University of Cape Town, South AfricaMacrofauna communities colonizing intertidal mussel beds were sampled at seven sites between Swakopmund (Namibia) and Salt Rock (KwaZulu-Natal). Mean mussel cover, length, biomass and bed depth were all low in the southeast (former Transkei). Faunal abundance and biomass were minimal... -
Karyology of the redfin minnows, genus Pseudobarbus Smith, 1841 (Teleostei: Cyprinidae): one of the evolutionarily tetraploid lineages of South African barbines
Item type: Journal Article • Journal: African Zoology • Authors: D. Naran --- Department of Ichthyology and Fisheries Sciences, South Africa P. H. Skelton --- South African Institute for Aquatic Biodiversity, South Africa M. H. Villet --- Department of Zoology and Entomology, South AfricaThe karyotypes of six species of Pseudobarbus Smith, 1841, namely P. afer (Peters, 1864), P. asper (Boulenger, 1911), P. burchelli Smith, 1841, P. burgi (Boulenger, 1911), P. phlegethon (Barnard, 1938) and P. tenuis (Barnard, 1938), were examined by conventional Giemsa... -
An analysis of the recreational shore fishery in the Goukamma Marine Protected Area
Item type: Journal Article • Journal: African Zoology • Authors: P. Pradervand --- Oceanographic Research Institute, South Africa R. Hiseman --- Western Cape Nature Conservation Board, South AfricaTen years (1993–2002) of shore fishing catch and effort data collected during routine patrols in the Goukamma Marine Protected Area in theWestern Cape Province were analysed. Of a total of 35 species recorded, the most common were backtail, Diplodus sargus... -
The first record of the genus Haplohexapodibius Pilato & Beasley, 1987 in Africa, with notes on synonymy of Hexapodibius beasleyi Maucci, 1988, with Haplohexapodibius seductor Pilato & Beasley, 1987
Item type: Journal Article • Journal: African Zoology • Authors: Łukasz Kaczmarek --- Department of Animal Taxonomy & Ecology, Poland Clark W. Beasley --- Department of Biology, U.S.A Łukasz Michalczyk --- University of East Anglia, U.K.Notes on the synonymy of Hexapodibius beasleyi Maucci, 1988, with Haplohexapodibius seductor Pilato & Beasley 1987, are given. Ha. seductor Pilato & Beasley, 1987, is a new record for the African tardigrade fauna. -
Does the endangered Knysna seahorse, Hippocampus capensis, have a preference for aquatic vegetation type, cover or height?
Item type: Journal Article • Journal: African Zoology • Authors: Peter R. Teske --- Molecular Ecology and Systematics Group, Botany Department, South Africa Jacqueline F. Lockyear --- Department of Ichthyology and Fisheries Science, South Africa Thomas Hecht --- Department of Ichthyology and Fisheries Science, South Africa Horst Kaiser --- Department of Ichthyology and Fisheries Science, South AfricaThe Knysna seahorse, Hippocampus capensis, is an endangered teleost confined to three South African estuaries. Its abundance within these systems is low and distributions are patchy. Consequently, monitoring population sizes is labour-intensive. The aim of this study was to establish... -
Competition and niche partitioning in a floodplain ecosystem: a cladoceran community squeezed between fish and invertebrate predation
Item type: Journal Article • Journal: African Zoology • Authors: Markus Lindholm --- Department of Biology, Norway Dag Olav Hessen --- Department of Biology, NorwaySeasonal floodplains occasionally comprise highly productive zooplankton communities which are exposed to rapid shifts in predator regimes, also between vertebrate and invertebrate predators.We recorded the impact of two co-occurring zooplankton predators, the notonectid Anisops sardea and 0+ fish fry of... -
Comparative phylogeography of northwest African Natrix maura (Serpentes: Colubridae) inferred from mtDNA sequences
Item type: Journal Article • Journal: African Zoology • Authors: M. Barata --- Departamento de Zoologia e Antropologia, Faculdada de Ciências, Portugal D. J. Harris --- Departamento de Zoologia e Antropologia, Faculdada de Ciências, Portugal R. Castilho --- University of Algarve, PortugalWhile the comparative phylogeography of European fauna is relatively well understood, with Pleistocene climatic oscillations leading to ‘southern refugia’ for many species, the equivalent pattern has not been determined for North Africa. In this context variation within North African populations... -
Cryptic lineages of little free-tailed bats, Chaerephon pumilus (Chiroptera: Molossidae) from southern Africa and the western Indian Ocean islands
Item type: Journal Article • Journal: African Zoology • Authors: Peter John Taylor --- Durban Natural Science Museum, South Africa Jennifer Lamb --- University of KwaZulu-Natal, South Africa Devendran Reddy --- University of KwaZulu-Natal, South Africa Theshnie Naidoo --- University of KwaZulu-Natal, South Africa Fanja Ratrimomanarivo --- Vahatra, Madagascar Steven M. Goodman --- Vahatra, MadagascarWe investigate mitochondrial DNA and craniometric variation in southern African and Malagasy populations of the small and morphologically variable, house-roosting molossid bat, Chaerephon pumilus in relation to Malagasy populations of the related, smaller-sized species, C. leucogaster. Both cytochrome b and... -
Description of larval fish composition, abundance and distribution in nine south and west coast estuaries of South Africa
Item type: Journal Article • Journal: African Zoology • Authors: P. H. Montoya-Maya --- Department of Ichthyology and Fisheries Science, South Africa N. A. Strydom --- South African Institute for Aquatic Biodiversity, South AfricaThe composition, abundance and distribution of larval fishes from nine south and west coast estuaries from South Africa was investigated by plankton tow once per season between June 2003 and March 2004. A total of 49 274 early stage fishes... -
Sugar preferences and digestion by Cape white-eyes, Zosterops virens, fed artificial fruit diets
Item type: Journal Article • Journal: African Zoology • Authors: A. E. Wellmann --- School of Biological and Conservation Sciences, University of KwaZulu-Natal, South Africa C. T. Downs --- School of Biological and Conservation Sciences, University of KwaZulu-Natal, South AfricaSugar preferences and digestion of sugars in artificial fruit of different sugar types and concentrations were investigated in a South African facultative frugivore, the Cape white-eye (Zosterops virens). We studied sugar preferences, daily food and energy intake, and digestive efficiencies... -
Seasonal variation in gonadal steroids of males and females in the Cape mole-rat (Georychus capensis): the potential for opportunistic breeding
Item type: Journal Article • Journal: African Zoology • Authors: M. K. Oosthuizen --- Department of Zoology and Entomology, South Africa N. C. Bennett --- Department of Zoology and Entomology, South AfricaUrinary testosterone concentrations in males and urinary progesterone and oestradiol concentrations in females were measured in the Cape mole-rat (Georychus capensis) and compared for the summer and winter periods. The Cape mole-rat breeds seasonally, with sexual activity and subsequent pregnancy... -
isiXhosa names of South African land mammals
Item type: Journal Article • Journal: African Zoology • Authors: J. M. Feely [AN0001]The isiXhosa colloquial names of 86 taxa of South African land mammals recorded in three mammalogical works and three isiXhoxa dictionaries are tabulated and discussed. This reveals several ambiguities, discrepancies, inconsistencies and uncertainties, as well those species and groups of... -
Flea diversity on small carnivores in the Northern Cape Province, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: S. Matthee --- Department of Conservation Ecology and Entomology, South Africa L. van der Mescht --- Department of Conservation Ecology and Entomology, South Africa B. Wilson --- Zoologist, McGregor Museum, South Africa N. Lamberski --- Veterinary Clinical Operations Manager, San Diego Zoo’s Wild Animal Park, U.S.A.Small carnivores are parasitized by various ectoparasites that include fleas (Siphonaptera). To date few parasite studies in South Africa, and especially the Northern Cape, have focused on fleas, while those that have are biased by small sample sizes. In an... -
Invasion of a headwater stream by non-native fishes in the Swartkops River system, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Bruce R. Ellender --- Department of Ichthyology and Fisheries Science, South Africa Olaf L. F. Weyl --- South African Institute for Aquatic Biodiversity, South Africa Ernst R. Swartz --- South African Institute for Aquatic Biodiversity, South AfricaIn South Africa, fishes in headwater streams are increasingly being threatened by non-native fish invasions. These invasions originate primarily from source populations in mainstream rivers and impoundments. In the Blindekloof stream, a Swartkops River headwater tributary, the non-native Micropterus salmoides... -
Do deterministic processes influence the phenotypic patterns of animalivorous bat ensembles at urban rivers?
Item type: Journal Article • Journal: African Zoology • Authors: M. Corrie Schoeman --- School of Biological and Conservation Sciences, University of KwaZulu-Natal, Westville Campus, South Africa Kirby J. Waddington --- School of Biological and Conservation Sciences, University of KwaZulu-Natal, Westville Campus, South AfricaAlthough urbanization is perhaps the most damaging, persistent, and rapidly expanding form of anthropogenic pressure on natural ecosystems, data on the patterns and processes of sympatric bat species in urban landscapes are relatively scant. We quantified the packing and dispersion... -
Rapid assessment of montane anuran communities in the Albertine Rift: Hyperolius castaneus Ahl, 1931 as an umbrella species for conservation
Item type: Journal Article • Journal: African Zoology • Authors: Ulrich Sinsch --- Institute of Integrated Sciences, Department of Biology, Germany Eli Greenbaum --- Department of Biological Sciences, U.S.A. Chifundera Kusamba --- Laboratoire d’Herpétologie, Département de Biologie, Democratic Republic of Congo Edgar Lehr --- Institute of Integrated Sciences, Department of Biology, GermanyThe species richness of seven montane anuran communities of the Albertine Rift was assessed with visual and acoustic transects. A total of 28 anuran species were detected. The highland anuran communities at (2000–2800 m) were dominated by up to nine... -
Spatial and temporal population dynamics of rodents in three geographically different regions in Africa: Implication for ecologically-based rodent management
Item type: Journal Article • Journal: African Zoology • Authors: Apia W. Massawe --- Pest Management Centre, Sokoine University of Agriculture, Tanzania Loth S. Mulungu --- Pest Management Centre, Sokoine University of Agriculture, Tanzania Rhodes H. Makundi --- Pest Management Centre, Sokoine University of Agriculture, Tanzania Nomfundo Dlamini --- Department of Biological Sciences, Swaziland Seth J. Eiseb --- National Museum of Namibia, Namibia Frikkie Kirsten --- Agricultural Research Council-Plant Protection Research Institute, South Africa Themb’alilahlwa Mahlaba --- Department of Biological Sciences, Swaziland Phanuel Malebane --- Agricultural Research Council-Plant Protection Research Institute, South Africa Emil Von Maltitz --- Agricultural Research Council-Plant Protection Research Institute, South Africa Ara Monadjem --- Department of Biological Sciences, Swaziland Peter Taylor --- Durban Natural Science Museum, Heritage and Libraries Department, South Africa Vassana Tutjavi --- National Museum of Namibia, Namibia Steven R. Belmain --- Natural Resources Institute, University of Greenwich, U.K.As part of a three-year study to develop ecologically-based rodent management (EBRM) in southern Africa, a capture–mark–recapture study was carried out in Tanzania, Namibia and Swaziland to establish the demographic patterns and population dynamics of rodents. Two study grids were... -
Genetic variation in the Critically Endangered velvet worm Opisthopatus roseus (Onychophora: Peripatopsidae)
Item type: Journal Article • Journal: African Zoology • Authors: Savel R. Daniels --- Department of Botany and Zoology, South AfricaIn the present study the genetic variation of the Critically Endangered velvet worm species Opisthopatus roseus is examined. This species is endemic to the Ngele mistbelt forest in the KwaZulu-Natal province of South Africa. In recent years the forest has... -
Autotomy, tail regeneration and jumping ability in Cape dwarf geckos (Lygodactylus capensis) (Gekkonidae)
Item type: Journal Article • Journal: African Zoology • Authors: Patricia A. Fleming --- School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, Australia Philip W. Bateman --- Department of Zoology and Entomology, South AfricaMany studies have examined the effect of caudal autotomy on speed and behaviour of lizards escaping over horizontal surfaces, but there have been few studies on lizards escaping over vertical surfaces and, in particular, species that jump between surfaces. We... -
West-Central African Pleistocene lowland forest evolution revealed by the phylogeography of Misonne’s soft-furred mouse
Item type: Journal Article • Journal: African Zoology • Authors: Violaine Nicolas --- Département de Systématique et Evolution, France Alain-Didier Missoup --- Département de Systématique et Evolution, France Marc Colyn --- UMR CNRS 6553 Ecobio, Université de Rennes 1, Station Biologique, France Corinne Cruaud --- Genoscope, Centre National de Sequençage, 2, rue Gaston Crémieux, France Christiane Denys --- Département de Systématique et Evolution, FranceWe studied the phylogeographical structure of Praomys misonnei (Rodentia: Muridae) in west-Central Africa based on 113 individuals from 31 localities and the sequencing of two mitochondrial genes (Cytb and CO1). Two clades can be identified through maximum likelihood, bayesian and... -
Survival and movement of the Congo forest mouse (Deomys ferrugineus): a comparison of primary rainforest and fallow land in Kisangani, Democratic Republic of Congo
Item type: Journal Article • Journal: African Zoology • Authors: Jan Kennis --- Evolutionary Ecology Group, University of Antwerp, Belgium Crespin Laurent --- INRA, UR346 d’Epidémiologie animale, France Nicaise Drazo Amundala --- Animal Ecology and Resource Management Laboratory (LEGERA), University of Kisangani, Democratic Republic of Congo Akaibe Migimiru Dudu --- Animal Ecology and Resource Management Laboratory (LEGERA), University of Kisangani, Democratic Republic of Congo Herwig Leirs --- Evolutionary Ecology Group, University of Antwerp, BelgiumThe Congo forest mouse, Deomys ferrugineus, occurs readily in natural and human-altered habitats in the region of Kisangani (Democratic Republic of Congo). We studied survival and movement patterns of D. ferrugineus in both habitats. Capture-mark-recapture was used to study the... -
Past connection of the upper reaches of a Lake Tanganyika tributary with the upper Congo drainage suggested by genetic data of riverine cichlid fishes
Item type: Journal Article • Journal: African Zoology • Authors: S. Koblmüller --- Department of Zoology, Austria C. Katongo --- Department of Biological Sciences, Zambia H. Phiri --- Department of Fisheries, Zambia C. Sturmbauer --- Department of Zoology, AustriaThe Lufubu River is the largest tributary to the southern Lake Tanganyika and its upper reaches are eparated from the lake by rapids that prevent upstream movement of lacustrine fish. Thus, the ichthyofauna of the upper Lufubu River is clearly... -
Metabolic disturbance and hepatic tissue damage induced by Eimeria papillata infection
Item type: Journal Article • Journal: African Zoology • Authors: Mohamed A. Dkhil --- Department of Zoology, College of Science, Saudi Arabia Saleh Al-Quraishy --- Department of Zoology, College of Science, Saudi ArabiaCoccidiosis is a parasitic disease, prevalent all over the world and has a significant impact on poultry production. The current study aimed to investigate the metabolic change as well as the hepatic inflammatory response caused by Eimeria papillata infection. Female... -
isiXhosa name for leopard
Item type: Journal Article • Journal: African Zoology • Authors: J.M. Feely --- Centre for African Conservation Ecology, Department of Zoology, South AfricaThe confusion among some speakers of isiXhosa concerning the meaning of ingwe can probably be traced to John Ayliff’s dictionary of the language published in 1846. There he gives ‘tiger’ as ingwe and ‘leopard’ as ihlozi. He clearly treats the... -
First record of freshwater fish on the Cape Verdean archipelago
Item type: Journal Article • Journal: African Zoology • Authors: Kay Lucek --- Institute for Ecology & Evolution, Division of Aquatic Ecology & Macroevolution, University of Bern, Switzerland Mélissa Lemoine --- Institute for Ecology & Evolution, Division of Evolutionary Ecology, University of Bern, SwitzerlandThe Cape Verdean islands form a distinct aquatic freshwater ecoregion characterized mainly by temporal water bodies with an adapted invertebrate community. Freshwater fish were not previously recorded from the archipelago. During a non-exhaustive survey of freshwater bodies on five islands... -
The phylogeography of Lemniscomys striatus (Rodentia: Muridae) confirms a remarkable vicariant event in neighbouring savanna populations in Central Gabon
Item type: Journal Article • Journal: African Zoology • Authors: J. F. Mboumba --- Université des Sciences et Techniques de Masuku, Gabon V. Nicolas --- Muséum National d’Histoire Naturelle, Département de Systématique et Evolution, France M. Colyn --- Université de Rennes 1, France P. Deleporte --- Université de Rennes 1, FranceOur recent phylogeographic study on the strictly savanna small rodent Nannomys minutoides revealed an unexpected pattern of divergence between populations occupying neighbouring savanna islands in Central Gabon, suggesting the historical and continuing fragmentation of these savanna habitats. In this study,... -
Otoliths versus scales: evaluating the most suitable structure for ageing largemouth bass, Micropterus salmoides, in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: G.C. Taylor --- Department of Ichthyology and Fisheries Science, South Africa O.L.F. Weyl --- Centre for Invasion Biology, South African Institute for Aquatic Biodiversity, South AfricaThe suitability of scales for ageing Micropterus salmoides was determined by comparing the precision of growth zone counts on scales with those obtained from sectioned sagittal otoliths from a sample of 496 fish collected from Wriggleswade and Mankazana Impoundments in... -
Foraging at wastewater treatment works increases the potential for metal accumulation in an urban adapter, the banana bat (Neoromicia nana)
Item type: Journal Article • Journal: African Zoology • Authors: S. Naidoo --- School of Life Sciences, University of KwaZulu-Natal, South Africa D. Vosloo --- School of Life Sciences, University of KwaZulu-Natal, South Africa M. C. Schoeman --- School of Life Sciences, University of KwaZulu-Natal, South AfricaWastewater treatment works (WWTWs) are known to provide profitable foraging areas for insectivorous bats in Europe and the New World because of their association with high abundance of pollution-tolerant midges (Diptera). However, bats that feed on these insects may also... -
Rules of attraction: the role of bait in small mammal sampling at high altitude in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Armand D. Kok --- Department of Zoology and Entomology, South Africa Daniel M. Parker --- Department of Zoology and Entomology, South Africa Nigel P. Barker --- Botany Department, South AfricaBaits or lures are commonly used for surveying small mammal communities, not only because they attract large numbers of these animals, but also because they provide sustenance for trapped individuals. In this study we used Sherman live traps with five... -
No effects of huddling on core body temperature in rock hyrax, Procavia capensis
Item type: Journal Article • Journal: African Zoology • Authors: C. T. Downs --- University of KwaZulu-Natal, South Africa K. Wimberger --- University of KwaZulu-Natal, South Africa A. L. Wilson --- University of KwaZulu-Natal, South AfricaHuddling is a behavioural energy conservation mechanism that is widely used by many small endotherms at low ambient temperatures. Huddling has many benefits, including decreasing the metabolic cost of maintaining body temperature (Tb), reducing the amount of heat lost to... -
Determining the most suitable method of otolith preparation for estimating the age of tigerfish, Hydrocynus vittatus in the Pongolapoort Dam, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: M. Soekoe --- Department of Zoology, South Africa F. H. van der Bank --- Department of Zoology, South Africa N. J. Smit --- North-West University, PotchefstroomThis study compares sectioned and whole lapillus and asterisci otoliths as suitable structures for ageing tigerfish, Hydrocynus vittatus. Fifty tigerfish were collected from the Pongolapoort Dam, KwaZulu-Natal, South Africa. Growth zone counts on sectioned lapilli showed the greatest percentage agreement... -
Does supplemental feeding affect behaviour and foraging of critically endangered western giant eland in an ex situ conservation site?
Item type: Journal Article • Journal: African Zoology • Authors: Pavla Hejcmanová --- Faculty of Tropical AgriSciences, Czech University of Life Sciences, Czech Republic Pavla Vymyslická --- Faculty of Environmental Sciences, Czech University of Life Sciences, Czech Republic Magdalena Žáčková --- Faculty of Environmental Sciences, Czech University of Life Sciences, Czech Republic Michal Hejcman --- Faculty of Environmental Sciences, Czech University of Life Sciences, Czech RepublicThe western giant eland (Tragelaphus derbianus derbianus) needs appropriate management for its survival. We measured the effects of supplemental food on activity and browsing patterns during seasons of scarce natural food resources in 2008 and 2009 for a herd of... -
Seasonal habitat and diet partitioning between two sympatric bovid species in Pendjari Biosphere Reserve (northern Benin): waterbuck and western kob
Item type: Journal Article • Journal: African Zoology • Authors: Chabi A. M. S. Djagoun --- Université d’Abomey-Calavi, Bénin Barthélemy Kassa --- Université d’Abomey-Calavi, Bénin Guy A. Mensah --- Institut National des Recherches Agricoles du Bénin, Bénin Brice A. Sinsin --- Université d’Abomey-Calavi, BéninNiche theory suggests differential use of shared resources facilitates coexistence of species in a community. In this study we used the faecal stable isotope analysis with observations along transect lines perpendicular to the Pendjari River. This was to examine seasonal... -
Phylogeography of Buthus Leach, 1815 (Scorpiones: Buthidae): a multigene molecular approach reveals a further complex evolutionary history in the Maghreb
Item type: Journal Article • Journal: African Zoology • Authors: Diana Pedroso --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, Portugal Pedro Sousa --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, Portugal D. James Harris --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, Portugal Arie Van der Meijden --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, PortugalThe distribution of the scorpion genus Buthus Leach, 1815 includes southwestern Europe, North and Central Africa and extends east towards the Arabian Peninsula. Phylogenetic relationships within the genus are complex and remain partially unresolved despite several previous assessments. A set... -
Causes of admissions to a raptor rehabilitation centre in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Lindy J. Thompson --- University of KwaZulu-Natal, South Africa Ben Hoffman --- Raptor Rescue, South Africa Mark Brown --- University of KwaZulu-Natal, South AfricaWith many species of southern African raptors becoming increasingly threatened, records from rehabilitation centres can give an indication of the threats faced by birds of prey in particular areas and to particular species. Thus, admissions records from a raptor rehabilitation... -
New evidence of homoplasy within the African genus Varicorhinus (Cyprinidae): an independent origin of specialized scraping forms in the adjacent drainage systems of Ethiopia inferred from mtDNA analysis
Item type: Journal Article • Journal: African Zoology • Authors: Boris A. Levin --- Institute of Biology of Inland Waters, Russian Academy of Sciences, Russia Alexander S. Golubtsov --- Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Russia Yuri Yu. Dgebuadze --- Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Russia Nikolai S. Mugue --- Koltsov Institute of Developmental Biology, Russian Academy of Sciences, RussiaInterrelationships of the two specialized scraping periphyton-feeders, Varicorhinus beso and V. jubae, and some large African barbs, Labeobarbus spp., inhabiting three main regions of Ethiopia (the Western and Eastern Plateaus, and the Rift Valley separating them) were investigated using the... -
White shark (Carcharodon carcharias)-inflicted bite wounds observed on Cape fur seals (Arctocephalus pusillus pusillus) at Black Rocks, Algoa Bay, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Matthew L. Dicken --- KwaZulu-Natal Sharks Board, South Africa Michelle Bradshaw --- Port Elizabeth Museum, South Africa Malcolm J. Smale --- Port Elizabeth Museum, South AfricaThis paper presents the first quantitative study on the seasonal occurrence and body location of white shark (Carcharodon carcharias)-inflicted injuries on Cape fur seals (Arctocephalus pusillus pusillus) at Black Rocks, in Algoa Bay. Between January 2010 and October 2011, 22... -
Sugar type and concentration preference of the Cape white-eye, Zosterops virens
Item type: Journal Article • Journal: African Zoology • Authors: Minke Witteveen --- University of KwaZulu-Natal, South Africa Mark Brown --- University of KwaZulu-Natal, South AfricaDifferences in nectar characteristics of bird-pollinated plants were originally attributed to whether the plant was pollinated by non-passerine hummingbirds or passerine nectarivores. Subsequently this has been refuted and it is now hypothesized that these differences reflect whether the plants are... -
A comparative analysis of the diets of Varanus albigularis and Varanus niloticus in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Kim Dalhuijsen --- Animal, Plant and Environmental Sciences, University of the Witwatersrand, South Africa William R. Branch --- Bayworld, South Africa Graham J. Alexander --- Animal, Plant and Environmental Sciences, University of the Witwatersrand, South AfricaWe present data from gut content analyses of Varanus albigularis (savanna monitor) and V. niloticus (water monitor) in South Africa. Both species are generalist, opportunistic feeders. We did not detect any sex-based differences in the diet of V. albigularis, and... -
Sex differentiation based on the gular stripe in the apparently monomorphic Cape gannet
Item type: Journal Article • Journal: African Zoology • Authors: Gavin M. Rishworth --- Department of Zoology, South Africa Maëlle Connan --- Department of Zoology, South Africa David B. Green --- Department of Zoology, South Africa Pierre A. Pistorius --- Department of Zoology, South AfricaThe Cape gannet, Morus capensis, has long been considered a monomorphic species despite attempts at phenotypically separating the sexes. In a further effort we here recorded morphometric measurements from genetically sexed Cape gannets. Discriminant function analysis was used to classify... -
Towards an isotope ecology of Cape Fynbos small mammals
Item type: Journal Article • Journal: African Zoology • Authors: Irene M. van den Heuvel --- Biozentrum Grindel, Zoological Institute and Museum, University of Hamburg, Martin-Luther-King Platz 3, D-20146 Hamburg, Germany Jeremy J. Midgley --- Department of Botany, South AfricaWe investigated ecological separation through dietary partitioning of small mammals in the nutrient-poor Fynbos biome using a stable isotope approach. Hair samples from eight species of co-occurring small mammals in two separate locations were analysed for stable carbon (13C/12C) and... -
Preliminary evaluation of the impact of invasive smallmouth bass Micropterus dolomieu on native fish abundance in the Witte River, Cape Floristic Region, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Jeremy M. Shelton --- Department of Biological Sciences, South Africa Jenny A. Day --- Department of Biological Sciences, South Africa N. Dean Impson --- CapeNature Scientific Services, South AfricaThe impact of invasive smallmouth bass, Micropterus dolomieu, on the abundance of two native fish species, Breede River redfin, Pseudobarbus burchelli, and Cape kurper, Sandelia capensis, was investigated in the Witte River tributary of the Breede River in South Africa’s... -
First record of an intraleucocytic haemogregarine (Adeleorina: Haemogregarinidae) from South African tortoises of the species Stigmochelys pardalis (Cryptodira: Testudinidae)
Item type: Journal Article • Journal: African Zoology • Authors: Courtney A. Cook --- Department of Zoology, South Africa Nico J. Smit --- Water Research Group (Ecology), Unit for Environmental Sciences and Management, North-West University, South Africa Angela J. Davies --- Water Research Group (Ecology), Unit for Environmental Sciences and Management, North-West University, South AfricaTo date, four intraerythrocytic apicomplexans, namely the haemogregarines Haemogregarina fitzsimonsi and Haemogregarina parvula, and the haemoproteids Haemoproteus testudinalis and Haemoproteus natalensis, have been described from South African land tortoises. Recently, an intraleucocytic haemogregarine was observed in one species of tortoise,... -
Solitary individuals in populations of the group-living lizard Ouroborus cataphractus: voluntary or forced?
Item type: Journal Article • Journal: African Zoology • Authors: P. le Fras N. Mouton --- Department of Botany & Zoology, South Africa Janine L. Glover --- Department of Botany & Zoology, South Africa Alexander F. Flemming --- Department of Botany & Zoology, South AfricaWe compared crevice fidelity among solitary and group-living individuals in a population of the group-living lizard Ouroborus cataphractus. We also compared the incidence of solitary individuals between the sexes and different seasons.We surveyed suitable rocky areas at two sites in... -
High population connectivity and Pleistocene range expansion in the direct-developing plough shell Bullia rhodostoma along the South African coast
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Muteveri --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa CA Matthee --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa RCK Bowie --- Museum of Vertebrate Zoology and Department of Integrative Biology, USA S von der Heyden --- Evolutionary Genomics Group, Department of Botany and Zoology, South AfricaPleistocene climatic and oceanographic changes have influenced the distribution of marine biodiversity in southern Africa. Most evidence, however, has been derived from rocky shore or demersal taxa; data on sandy shore species are limited, despite severe threats to many sandy... -
Spinner dolphins Stenella longirostris off south-west Mauritius: abundance and residency
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: I Webster --- Mauritius Marine Conservation Society, Mauritius VG Cockcroft --- Centre for Dolphin Studies, Department of Zoology, South Africa A Cadinouche --- SEABIOME, MauritiusSpinner dolphins Stenella longirostris longirostris off the south-west coast of Mauritius are subject to ongoing anthropogenic disturbance in the form of daily dolphin tourism, which has intensified since 1998. Abundance of this species was estimated using photo-identification data and mark-recapture... -
Introduced Pacific oysters Crassostrea gigas in South Africa: demographic change, genetic diversity and body condition
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Keightley --- Department of Botany and Zoology, South Africa S von der Heyden --- Department of Botany and Zoology, South Africa S Jackson --- Department of Botany and Zoology, South AfricaSuccessful aquaculture species are often chosen for their fast growth rates and fecundity, which are also characteristics of invasive species. The Pacific oyster Crassostrea gigas, which constitutes 80% of global oyster trade, has been confirmed as invasive in 17 of... -
Movement patterns of surf-zone fish species in a subtropical marine protected area on the east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BQ Mann --- Oceanographic Research Institute, South Africa PD Cowley --- South African Institute for Aquatic Biodiversity, South Africa ST Fennessy --- Oceanographic Research Institute, South AfricaA long-term mark-recapture study was used to assess the movement patterns of surf-zone fishes in the St Lucia Marine Reserve, a marine protected area within the iSimangaliso Wetland Park, a World Heritage Site on the east coast of South Africa... -
Reducing the overall HIV-burden in South Africa: is ‘reviving ABC’ an appropriate fit for a complex, adaptive epidemiological HIV landscape?
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Christopher J Burman --- The Rural Development and Innovation Hub, South Africa Marota Aphane --- The Rural Development and Innovation Hub, South Africa Peter Delobelle --- School of Public Health, South AfricaThis article questions the recommendations to ‘revive ABC (abstain, be faithful, condomise)’ as a mechanism to ‘educate’ people in South Africa about HIV prevention as the South African National HIV Prevalence, Incidence and Behaviour Survey, 2012, suggests. We argue that... -
Exploring ground-based methods for the validation of remotely sensed evapotranspiration
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Andiswa Finca --- Agricultural Research Council–Livestock Business Division, South Africa Anthony R Palmer --- Agricultural Research Council–Livestock Business Division, South Africa Vincent Kakembo --- Centre for African Conservation Ecology, South AfricaAccurate estimates of evapotranspiration (ET) are essential when calculating catchment-scale water balances. An open top chamber (OTC), a ground-based method for measuring actual ET, was used to validate modeled ET from earth observation MODIS and agrometeorological data. We studied and... -
Predictors of quality of life enjoyment and satisfaction in individuals living with HIV and AIDS in a resource-constrained setting in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kim Jonas --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Pamela Naidoo --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Nicolette Vanessa Roman --- Faculty of Community and Health Sciences, South Africa Luis Angel Saúl Gutiérrez --- Facultad de Psicología, UNED, Guillem Feixas --- University of Barcelona, SpainThe burden of HIV disease is concentrated in sub-Saharan Africa, particularly in South Africa (SA). Whilst there have been many studies conducted on the biomedical and socio-psychological aspects of HIV and AIDS, insufficient attention has been paid to the quality... -
Exploring the bullying behaviours experienced by South African domestic workers
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yolo-loyolo Maboyana --- Department of Industrial Psychology and People Management, South Africa Lusanda Sekaja --- Department of Industrial Psychology and People Management, South AfricaThis article phenomenologically explores the nature of bullying behaviours as experienced by domestic workers in South Africa. Participants were a convenience sample of 10 black female domestic workers (age range = 27 to 53 years, work experience = 3 to... -
Life design counselling effects on the career adaptability of learners in a selective independent school setting
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacobus G. Maree --- Faculty of Education, South Africa Claire Symington --- Faculty of Education, South AfricaThis collective case study applied life design counselling to augment the career adaptability of learners in a South African independent school setting. Five purposively selected learners attending Grade 11 (age range: 16–18) completed eight group-based life design counselling sessions. Data... -
Shoebill Balaeniceps rex foraging behaviour in the Bangweulu Wetlands, Zambia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ralf HE Mullers --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Arjun Amar --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South AfricaShoebills (Balaeniceps rex) are endemic to large, well-vegetated wetlands in central-eastern Africa. Populations are believed to be declining throughout their range and knowledge about their ecology, behaviour and distribution is vital for their effective conservation. In this study we quantified... -
Solving the challenges of monitoring mobile populations: insights from studies of waterbirds in southern Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Hannah L Thomas --- Percy FitzPatrick Institute, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- Percy FitzPatrick Institute, DST–NRF Centre of Excellence, South Africa Graeme S Cumming --- Percy FitzPatrick Institute, DST–NRF Centre of Excellence, South AfricaHighly mobile species are difficult to monitor. It is often unclear from abundance estimates whether a population is genuinely declining or simply elsewhere. If the spatial and temporal scales of monitoring are inadequate, the data will only be useful if... -
Population metrics for fynbos birds, South Africa: densities, and detection and capture rates from a Mediterranean-type ecosystem
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan TK Lee --- Kirstenbosch Research Centre, South African National Biodiversity Institute, South Africa Phoebe Barnard --- Kirstenbosch Research Centre, South African National Biodiversity Institute, South Africa Philip AR Hockey --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South AfricaEstimates of bird numbers through quantification of density and range sizes are necessary for decisions regarding conservation status, yet counts of birds are often confounded by uncertainty of detection. The status of the endemic birds of the Fynbos biome is... -
Elevated temperatures drive fine-scale patterns of habitat use in a savanna bird community
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Rowan O Martin --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Susan J Cunningham --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- ,Many animals use thermally buffered microhabitats, e.g. patches of shade within trees, to avoid temperature extremes. These ‘thermal refugia’ may mediate the impact of climate change on animals. Predicting how species and communities will respond to rising temperatures therefore requires... -
Temporal and spatial differences in three-egg clutch frequency of the African Black Oystercatcher
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Dane M Paijmans --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Douglas Loewenthal --- , Peter G Ryan --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- ,African Black Oystercatchers Haematopus moquini produce a modal clutch size of two eggs and only rarely lay three eggs. A review of over 4 000 nest records from across their breeding range (dating back to the early 1960s) revealed that... -
The status of the Damara Tern in the Eastern Cape, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Philip A Whittington --- East London Museum, South Africa Anthony J Tree --- Department of Zoology, South Africa Maëlle Connan --- Department of Zoology and Entomology, South Africa Elizabeth G Watkins --- , South AfricaThe Eastern Cape population of the Damara Tern Sternula balaenarum was estimated to be 25–29 pairs in the 2008/09 and 2009/10 breeding seasons. The population appears to be stable and has probably increased slightly since the early 1990s. An eastward... -
A novel methodology for the rapid assessment of waterbird vulnerability to disturbance
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kate JH England --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Colin Jackson --- A Rocha Kenya, Mwamba Bird Observatory and Field Study Centre, Kenya Philip AR Hockey --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South AfricaA methodology for rapidly assessing the vulnerability of waterbirds to disturbance was tested at Sabaki estuary, Kenya. Three variables were employed to measure the responses of 15 species: (1) bird density, (2) minimum distance of birds from a stationary disturbance... -
Comparative and theoretical framework of Brazilian hospitality studies
Item type: Journal Article • Journal: • Authors: Elizabeth K. Wada --- School of Hospitality and Tourism, Anhembi Morumbi University, São Paolo, Brazil Airton José Cavenaghi --- School of Hospitality and Tourism, Anhembi Morumbi University, São Paolo, Brazil Maria do Rosário Rolfsen Salles --- School of Hospitality and Tourism, Anhembi Morumbi University, São Paolo, BrazilThe purpose of this article is to give a summary of the bibliographical production of the first publications made by the Master’s Programme in Hospitality at the Anhembi Morumbi University, São Paolo, the compilations edited by Célia Maria de Moraes... -
So you want to get published? It’s all about theory, context and data
Item type: Journal Article • Journal: • Authors: Kevin D O’Gorman --- School of Management and Languages, Heriot-Watt University, Edinburgh, United Kingdom Thomas J W Farrington --- School of Management and Languages, Heriot-Watt University, Edinburgh, United KingdomThis paper offers guidance on writing for publication in peer-reviewed business and management journals. The approach outlined and illustrated within is the amalgamated result of many years of experience in academic writing, editing, and getting published. The paper is primarily... -
A visual analysis of a cultural tourism destination
Item type: Journal Article • Journal: • Authors: Klaes Eringa and Shenghan Zhou --- Stenden Hotel Management School, Stenden University of Applied Sciences, Leeuwarden, The NetherlandsThis research investigates how a relatively unknown town that is elected as cultural capital of Europe can use visual materials to attract visitors from totally different areas in the world, particularly China. The study uses visual cues for two purposes:... -
The developmental model of technological capability in the Iranian medical equipment industries: A multi-case study
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mohammad-Ali Shafia --- Department of Progress Engineering, Iran Mehdi Mohammadi --- Department of New Sciences and Technologies, Iran Ali-Reza Babakhan --- Department of Progress Engineering, Iran Seyyed S Monajemzadeh --- Policy Making Office of Science and Technology, IranIn recent decades, many countries have selected the industrialisation path and adopted different strategies to improve economic conditions. In addition, wealth creation from science and technology has been welcomed by many theorists of development. Thus, developing countries have tried to... -
Company-specific characteristics affecting oil and gas reserves disclosure in the United Kingdom
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Wilson Uchenna Ani --- Department of Banking and Finance, Nigeria Philip Obialor --- Coxswain Social Investment Plus (CSI+) (Consultants), Nigeria Odo Cosmas --- Department of Marketing, Nigeria David Okelue Ugwunta --- Department of Banking and Finance, NigeriaThis paper investigates company-specific characteristics affecting oil and gas reserves disclosure in the United Kingdom. Using a sample selected through purposive and stratified random sampling from 83 UK oil and gas exploration and production companies listed on the London Stock... -
Adding market value to a holding company
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: G D I Barr --- Department of Statistical Science and Economics, B S Kantor --- Department of Economics,The paper explains the forces that determine changes in the discount of Net Asset market value of the typical JSE listed holding company. It is demonstrated that a variety of events which will alter the discount automatically may have very... -
Uncertainty, cost of capital and financial disclosure: A review of the theory and some evidence
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Negash --- University of the Witwatersrand,This paper contains a critical review of the uncertainty research, and reports on the relationship between corporate disclosure and the adverse selection component of the buy-sell (bid-ask) spread of stock prices. Order processing and holding costs will be decoupled from... -
Rethinking the reporting of intangibles
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Negash --- School of Accountancy, Republic of South AfricaThis paper deals with one of the central problems of financial reporting. Using a mix of qualitative-quantitative approach the paper extends the author’s previous work on intangibles. It attempts to represent the views of users and preparers of financial statements... -
Market segmentation and the cost of equity of companies listed on the Johannesburg Stock Exchange
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: C Correia --- Department of Accounting, E Uliana --- Department of Accounting,The segmentation between the Resources/Mining and the Financial and Industrial sectors on the Johannesburg stock exchange and the relative historical dominance of the Mining sector in relation to other international markets poses questions about whether the All share data or... -
The effect on taxpayers of new tax legislation regarding foreign exchange transactions
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: R Oberholzer --- Department of Taxation, J S Wilcocks --- School of Applied Accountancy,Numerous problems have been encountered with the practical application of the new taxation legislation relating to foreign currency transactions. The purpose of this paper is to analyse the amendments relating to foreign exchange transactions and to illustrate, by using examples,... -
Capital budgeting: A case study analysis of the role of formal evaluation techniques in the decision making process
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: E Gilbert --- Graduate School of Business, University of Cape Town,This paper furthers the understanding of capital budgeting by reviewing two individual capital investment decisions taken by manufacturing firms in South Africa. This study indicates that managers do not base their capital investment decisions on a comparison of the expected... -
Firm ownership structure and intellectual capital disclosures
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: S Firer --- University of the Witwatersrand, S M Williams --- Singapore Management University,The primary purpose of this study is to investigate the association between three ownership structure characteristics and voluntary intellectual capital (IC) disclosure practices. Data for this study is hand collected from the 2000 annual reports of 390 Singapore publicly traded... -
An empirical test of the agency problems and capital structure of South African quoted SMEs
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: J Abor --- University of Stellenbosch Business School, Bellville N Biekpe --- University of Stellenbosch Business School, BellvilleThe agency theory suggests that the separation of ownership and control in firms creates conflicts of interest between the firm’s shareholders and managers. This is mainly because managers have the opportunity to use the resources of the firm in ways... -
The timing of the recognition of a liability for secondary tax on companies in accordance with international financial reporting standards
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: E R Venter --- Department of Accounting, M Stiglingh --- Department of Taxation,United States Generally Accepted Accounting Practice (“US GAAP”) generally requires taxes to be measured at the rate applicable to distributed profits, while International Financial Reporting Standards (“IFRS”) requires the undistributed rate to be used. This current conflict between US GAAP... -
An analysis of certain issues relating to the taxation of equity instruments
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: D A Warneke --- Department of Accounting, R D Jooste --- Department of Commercial Law,In this article we examine certain issues associated with Section 8C and other important and frequently encountered related provisions of the Income Tax Act. The issues examined relate to: the difference in tax treatment of restricted and unrestricted equity instruments;... -
The relationship between devoted study time and auditing learning approaches followed by prospective chartered accountants in South Africa
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: K Barac --- Department of Auditing,Learning approaches in accounting, distinguishing between deep, surface and strategic approaches, have been researched in several countries other than South Africa. The study reported in this article provided a South African perspective by investigating the auditing learning approaches of prospective... -
The corporate use of derivatives: a survey of South Africa’s large listed non-financial firms
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: C Correia --- College of Accounting, G Holman --- Department of Finance and Tax, A Jahreskog --- College of Accounting,This paper presents the results of a comparative questionnaire survey of derivative use by South African companies. The objective was to determine the extent of derivative use and to examine how and why companies use derivatives. Derivative use by South... -
Capitalisation of borrowing costs: An investigation into technical uncertainties in IAS 23
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: L van Staden --- School of Accounting Sciences, N van der Merwe --- School of Accounting Sciences,Those who are not experts in the field of accounting will most probably be of the opinion that interest should be expensed and therefore reduce profits. However, for financial periods beginning on or after 1 January 2009, the capitalisation of... -
An argument for either excluding death as a capital gains tax event or abolishing estate duty
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: J J Roeleveld --- Department of Finance and Tax,South Africa is one of the few countries in the world that imposes both estate duty and capital gains tax on the assets of a person on death. This paper presents an argument for the abolishment of estate duty in... -
Commentary: How accounting information is used by the South African Bank Regulator
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: L Bakoro --- University of Cape Town, P de Jager --- University of Cape Town, S Parsons --- University of Cape Town,Fair value accounting has been named by some as a role-player in the recent financial crisis. The initial defensive argument that accounting is only a messenger is easily dispelled by considering its vital role in banking and bank supervision, as... -
Basic Financial Statements: Objectives, Categories, Principles and Presentation
Item type: Journal Article • Journal: De Ratione • Authors: J.A. Miller --- University of Natal,Objectives ae suggested for each of the basic financial statements in the annual report of a business entity. Categories of information required and the principles used in their classification, are identified and defined. A suggested presentation reflects cash flow alongside... -
A review of capital market theory from a South African Perspective
Item type: Journal Article • Journal: De Ratione • Authors: D.J. Bradfield --- University of Cape Town,The vast quantity of finance literature dealing with Capital Market Theory on the New York Stock Exchange (NYSE) is evidence of the demand for research in this area. Until very recently, almost no research In this area has been conducted... -
Pre-incorporation Contracts Revisited
Item type: Journal Article • Journal: De Ratione • Authors: R Jooste --- University of Cape Town, C Koornhof --- University of the Witwatersrand,Some confusion stilt exists with Accountants as to the correct accounting treatment for pre-incorporation contracts. An attempt is made in this article to present a framework of the legal positions and accounting treatments of all practical situations encountered with pre-incorporation... -
An Analysis of the Approaches used by Industrial Companies Listed on the JSE to Identify their Cost of Capital
Item type: Journal Article • Journal: De Ratione • Authors: A S Pocock --- Mann Pocock and Associates, C de J Correia --- University of Cape Town, M P Wormald --- University of Cape Town,In order to maximise shareholder’s wealth, financial managers need to estimate their firm’s cost of capital. This paper, which is based on the results of a questionnaire sent to industrial companies listed on the JSE, examines both the acceptance and... -
The Nature of the South African Corporate Economy: A need to review company objectives?
Item type: Journal Article • Journal: De Ratione • Authors: D Botha --- University of Cape Town,The maximisation of shareholders’ wealth as the primary goal of the firm is the cornerstone of modern financial theory which has its source mainly from USA. The South African corporate economy has significantly different characteristics compared with that of the... -
Tussentydse verslae: Diskreet of integraal?
Item type: Journal Article • Journal: De Ratione • Authors: E C Ottermann --- Coopers Theron Du Toit, M Koen --- Universiteit van Pretoria, -
Estimating the Return Parameters of the Capital Asset Pricing Model
Item type: Journal Article • Journal: De Ratione • Authors: Colin Firer --- University of the Witwatersrand,The cost of equity capital is a fundamental concept In the field of finance. Its estimation often relies on the application of the Capital Asset Pricing Model. Very little help is offered to the practitioner in the selection of appropriate... -
A critical analysis of the new definition of the holding-subsidiary relationship
Item type: Journal Article • Journal: De Ratione • Authors: G K Everingham --- University of Cape Town, R D Jooste --- University of Cape Town,This article reviews the new definition of the holding-subsidiary relationship, introduced by amendment in 1992 in South Africa into the Companies Act of 1973. It traces the efforts of the legislature, influenced by developments in the United Kingdom, to produce... -
Opbare rekenmeester menings oor ’n toekomsgeoriënteerde benadering tot maatskappy jaarverslagdoening in Suid Afrika
Item type: Journal Article • Journal: De Ratione • Authors: E. Saenger --- Departement Rekeningkunde, -
Openbare rekenmeester menings oor ’n toekomsgeoriënteerde benadering tot maatskappy jaarverslagdoening in Suid-Afrika
Item type: Journal Article • Journal: De Ratione • Authors: E. Saenger --- Departement Rekenirtgkunde, -
The South African audit report: an empirical investigation of the positive perceptions gap
Item type: Journal Article • Journal: De Ratione • Authors: P.J.M. Bourne --- Department of Accounting, M.T. Minter --- Department of Accounting,The positive perceptions gap, a component of the expectations gap, is the difference between what auditors perceive they are doing and what informed users of audited financial information perceive auditors are doing. This article reports the results of an empirical... -
Risk on The Johannesburg Stock Exchange
Item type: Journal Article • Journal: De Ratione • Authors: Mike Ward --- Lecturer in Finance and Quantitative Methods Faculty of Management,The Capital Asset Pricing Model (CAPM) provides a parsimonious method for estimating security returns. However, the strong influence of mining shares on the Johannesburg Stock Exchange (JSE) has complicated the use of the CAPM in South Africa and some researchers... -
Fiskale onderskeid tussen ’n wins van ’n kapitale aard en inkomste aard
Item type: Journal Article • Journal: De Ratione • Authors: Hendrik Coetzee --- Deeltydse professor by die Randse Afrikaanse Universiteit en verbonde aan die belastingpraktyk van KPMG, -
Further Evidence of Firm Size and Earnings Anomalies on the Johannesburg Stock Exchange
Item type: Journal Article • Journal: De Ratione • Authors: Michael J. Page --- Graduate School of Business,In spite of the large body of evidence in favour of capital market efficiency in the semi-strong form, several enigmatic findings persist. As much of the research is based on the theoretical foundation of the Capital Asset Pricing Model, the... -
The accounting function of John Company’s Cape of Good Hope factory 1812–1813, during the second British occupation of the Cape colony – observations and comments
Item type: Journal Article • Journal: De Ratione • Authors: J G Samkin --- Department of Accountancy,This paper reviews and makes observations on the accounting functions of the Cape of Good Hope factory of the English East India Company during the period 1812–1813. In particular, the accounting records maintained by the Cape factory are examined. By... -
Stock market responses to corporate unbundling in South Africa
Item type: Journal Article • Journal: De Ratione • Authors: Geoffrey Blount --- Department of Business Economics, Sinclair Davidson --- Department of Economics and Finance,This paper examines the effect of the announcement of a restructuring on the returns of the parent companies and the subsidiaries to be unbundled. Abnormal returns are calculated from sixty days prior to the unbundling announcement to sixty days after... -
A review of renal protection strategies
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Erna Meyer --- Northland District Health Board, Whangarei Base Hospital, New ZealandGlobally, more than 10 million people are affected every year by acute kidney injury (AKI) and approximately 6% of hospital patients sustain some degree of kidney injury during their hospital event. Reducing perioperative kidney injury may significantly improve patient outcomes... -
Influence of climate variables on Cyperus papyrus stomatal conductance in Lubigi wetland, Kampala, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Opio --- Department of Biology, Uganda MB Jones --- Department of Botany, Ireland F Kansiime --- Department of Environmental Management, Uganda T Otiti --- Department of Physics, UgandaCyperus papyrus forms highly productive wetlands in tropical Africa, but the environmental control of transpirational water loss in wetlands is poorly understood. The influence of climate variables on papyrus stomatal conductance in dry and wet seasons of the year was... -
Influence of mouth status on population structure of southern African endemic estuarine-spawning ichthyofauna in a temperate, temporarily open/closed estuary
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GP Tweddle --- Coastal Research Unit of Zululand, Department of Zoology, South Africa PW Froneman --- Department of Zoology and Entomology, South AfricaThe effect of mouth status on the population structure of three endemic estuarine-spawning fish species was assessed using seine nets from November 2005 to October 2007 in the temporarily open/closed Mpekweni Estuary, Eastern Cape, South Africa. Collectively, these three species... -
Increasing students’ safety awareness in a teaching hotel
Item type: Journal Article • Journal: • Authors: Jan Bossema --- Stenden Hotel, Leeuwarden, The NetherlandsDuring the past years the attention for safety and health at work has increased, partly through the influence of European law and labour agreements and by acknowledging the huge economic impact of accidents and calamities. It is notable that companies... -
Southern African pasture and forage science entering the 21st century: past to present
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Wayne F Truter --- Department of Plant Production and Soil Science, South Africa Philip R Botha --- Directorate Plant Sciences, Western Cape Department of Agriculture, South Africa Chris S Dannhauser --- Grass SA, Waverley, South Africa Barbara V Maasdorp --- Department of Crop Science, Zimbabwe Neil Miles --- South African Sugarcane Research Institute, South Africa Albert Smith --- Stats4science, South Africa Hennie A Snyman --- Department of Animal, Wildlife and Grassland Sciences, South Africa Neil M Tainton --- Amber Valley, South AfricaGiven the global challenges of mitigating and alleviating land degradation and ensuring food security, particularly through protein production, pasture and forage science together with rangeland science will remain imperative to sustainable livestock production systems. Recognising the scientific principles developed in... -
A framework for caring in physiotherapy education and practice
Item type: Journal Article • Journal: South African Family Practice • Authors: Serela Ramklass --- School of Clinical Medicine, South AfricaBackground: Caring is central to the practice of physiotherapy. However, explicit components of caring required for South African physiotherapy practice within a model of primary healthcare are not detailed. -
The influence of gender roles and traditional healing on cervical screening adherence amongst women in a Cape Town peri-urban settlement
Item type: Journal Article • Journal: South African Family Practice • Authors: Despina Learmonth --- Department of Psychology, South Africa Anica Jansen van Vuuren --- Department of Psychology, South Africa Chantelle De Abreu --- Department of Psychology, South AfricaBackground: Cervical cancer is the third most common gynaecologic malignancy worldwide and is the second most common cancer among South African women. Although entirely preventable, cervical cancer is responsible for the death of approximately 3 027, 53% of those diagnosed,... -
Case pending: practices of inclusion and exclusion in a class of plaintiffs
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Rita Kesselring --- Institute of Social Anthropology, University of Basel, SwitzerlandApartheid victims have had a difficult standing in South Africa in the years that followed the Truth and Reconciliation Commission (TRC). In the government's perspective, the TRC had conclusively dealt with apartheid victimhood. Consequently, when victims turned to US courts... -
Journeying into interobjectivity: how worlds can be multiple and real
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Andre Goodrich --- Social Anthropology, School of Social and Government Studies, North-West University, South AfricaThe culture-nature division is fundamental to the division of academic labour between the social and natural sciences. In the face of climate change and other broad environmental threats, natural and social scientists are becoming critical of this division of labour... -
The truck driver's watch: time and the working lives of long haul truck drivers in southern Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Adriaan S. Steyn --- Department of Sociology and Social Anthropology, South AfricaThe optimal use of time has shaped the organisation of productive activity in capitalist societies. This objective has similarly shaped labour in the truck transport industry. Drawing on mobile ethnographic fieldwork conducted amongst long haul truck drivers in southern Africa,... -
Auditing poverty? Applied anthropologists and the discourse of development in post-apartheid South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Teresa Connor --- Fort Hare Institute of Social and Economic Research, University of Fort Hare, South AfricaThis article debates the opportunities and disadvantages attached to applied anthropology, specifically consultancy linked to development work, within the institutions and processes of the modern neo-liberal state. Located within political and applied anthropology, the article uses insights gained from two... -
Aesthetics of Muslim public and community formations in Cape Town: observations of an anthropologist
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Ala Rabiha Alhourani --- Department of Anthropology and Sociology, South AfricaThis paper explores the implications of the arrival of Muslim Somali immigrants for the emergence of other Muslim communities in post-apartheid Cape Town. The ethnography unpacks the complexity and diversity of Somali identity formation, their culturally distinct politics of aesthetics... -
Life design counselling effects on the career adaptability of learners in a selective independent school setting
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacobus G. Maree --- Faculty of Education, South Africa Claire Symington --- Faculty of Education, South AfricaThis collective case study applied life design counselling to augment the career adaptability of learners in a South African independent school setting. Five purposively selected learners attending Grade 11 (age range: 16–18) completed eight group-based life design counselling sessions. Data... -
First Hemolivia from southern Africa: reassigning chelonian Haemogregarina parvula Dias, 1953 (Adeleorina: Haemogregarinidae) to Hemolivia (Adeleorina: Karyolysidae)
Item type: Journal Article • Journal: African Zoology • Authors: Courtney A Cook --- Unit for Environmental Sciences and Management, North-West University, South Africa Edward C Netherlands --- Unit for Environmental Sciences and Management, North-West University, South Africa Nico J Smit --- Unit for Environmental Sciences and Management, North-West University, South AfricaTo date, only a single species of Hemolivia, Hemolivia mauritanica (Sergent & Sergent, 1904), has been described from African terrestrial tortoises. Although various haemogregarines have been described from southern African terrapins and tortoises, including species from the genus Haemogregarina and... -
Pathology of eyes and brain of fish infected with diplostomids, southern Africa
Item type: Journal Article • Journal: African Zoology • Authors: Andri Grobbelaar --- Department Zoology and Entomology, University of the Free State, South Africa Liesl L van As --- Department Zoology and Entomology, University of the Free State, South Africa Jo G van As --- Department Zoology and Entomology, University of the Free State, South Africa Hennie JB Butler --- Department Zoology and Entomology, University of the Free State, South AfricaOnly a few reports exist on diplostomid metacercariae found in southern African fish and even less information is available on the pathology associated with these infections. During surveys conducted in December 2008 and August 2010, different fish species were collected... -
The Relationship between Competitive Strategy and Firm Performance in Micro and Small Businesses in Ghana: The Moderating Role of Managerial and Marketing Capabilities
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Moses Acquaah --- Bryan School of Business and Economics, USA Ahmed Agyapong --- KNUST Business School, GhanaThis study investigates the role of managerial and marketing capabilities in moderating the relationship between competitive strategy and firm performance using data from 581 micro and small businesses (MSBs) in Ghana. Using a hierarchical multiple regression analysis the findings indicate... -
Africapitalism: A Management Idea for Business in Africa?
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Kenneth Amaeshi --- University of Edinburgh, UK Uwafiokun Idemudia --- York University, CanadaThe efforts to rethink the role of business in development, especially in developing countries, have facilitated the emergence of an array of concepts. Africapitalism – i.e. the private sector's commitment to the socio-economic development of Africa – proposed and championed... -
Clinical anatomy of the superior cluneal nerve in relation to easily identifiable bony landmarks
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: L Loubser --- Department of Anatomy, South Africa RP Raath --- Jakaranda Pain Clinic, South Africa AN Van Schoor --- Department of Anatomy, South AfricaBackground: Lower back pain (LBP) remains a common ailment among adult populations and a superior cluneal nerve (SCN) entrapment accounts for 10% of reported LBP cases. The diagnostic criteria for SCN entrapment include anaesthesia of the area supplied by the... -
Anaesthesia for a patient with B-thalassaemia
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: I Giannakikou --- Department of Anaesthesia, Greece A Karra --- Department of Intensive Care Unit, GreeceΒ-Thalassaemia is a rare hereditary disease caused by partial or complete deficiency of β-haemoglobin chain synthesis. There is a lot of literature regarding anaesthetic management in other haemoglobinopathies (i.e. sickle cell disease), especially in the paediatric population, but there is... -
Technological capacity and other determinants of economic performance in African countries: Panel data evidence
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Albert A. Okunade --- Department of Economics, USAThe determinants of aggregate economic performance in African countries are economic, institutional and political. To date, rarely has research included a specific conceptual measure of technological index among the core determinants. Consequently, for the first time in the economic development... -
Comparative study of double-chamber microbial fuel cells (DC-MFCs) using Mfensi clay as ion-exchange-partition: Effect of electrodes
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: R.Y. Tamakloe --- Department of Physics, Ghana T. Opoku-Donkor --- Department of Physics, Ghana M.K.E. Donkor --- Department of Physics, Ghana H. Agamasu --- Department of Physics, GhanaAn alternative answer to the vital issues of electricity production and wastewater treatment leads to the application of microbial fuel cells. This study has developed a low-cost double-chambered microbial fuel cell (MFC) for electricity generation, which can also be used... -
A study of the approaches to learning, engagement with the learning context and conceptions of learning of a group of fourth year accounting students
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: K Mashishi --- Department of Accounting, E Rabin --- Department of Accounting,Recent research into the quality of learning of accounting students has indicated that students lack requisite skills and competencies in a number of areas. Sharma (1997: 125) refers to the following inadequacies, amongst others, that researchers have identified: That students... -
The relevance of management accounting education at South African tertiary institutions
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Shotter --- School of Accountancy, University of Pretoria, FJ de Hart --- School of Accountancy, University of Pretoria, GJ Plant --- School of Accountancy, University of Pretoria, EM Louw --- Department of Statistics, AJ Pienaar --- Accounting Training Corporation of South Africa (ATCOR),This study examines the extent of the gap between education and practice, in respect of management accounting in South Africa. The investigation is carried out by means of two surveys; the first among universities and technikons to determine what is... -
Patterns in financial performance indicators of capital and labour intensive enterprises during an upswing and a decline in the economic cycle
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: JZ Bloom --- Department of Business Management, IJ Lambrechts --- Department of Business Management, NJ le Roux --- Department of Statistics and Actuarial Science,The objective of this paper is to investigate patterns in the behaviour of various financial performance indicators for capital intensive (CI) and labour intensive (LI) enterprises during an upswing (1987–1989) and a decline (1990–1992) phase of the economic cycle, as... -
Uncertainty, cost of capital and financial disclosure: A review of the theory and some evidence
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Negash --- University of the Witwatersrand,This paper contains a critical review of the uncertainty research, and reports on the relationship between corporate disclosure and the adverse selection component of the buy-sell (bid-ask) spread of stock prices. Order processing and holding costs will be decoupled from... -
Pelagic shark fisheries of Indonesia's Eastern Indian Ocean Fisheries Management Region
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: Fahmi --- Research Centre for Oceanography, Indonesian Institute of Sciences, Indonesia Dharmadi --- Research Centre for Fisheries Management and Conservation, Ministry of Marine Affairs and Fisheries, IndonesiaSharks are commonly caught in Indonesian waters both by target fisheries and as bycatch. Fishers targeting sharks mostly employ drift longlines, whereas tuna longlines and gillnets are the gear mostly responsible for shark bycatch. Our studies on shark fisheries have... -
A review of the radiological imaging modalities of non-traumatic small bowel obstruction
Item type: Journal Article • Journal: South African Family Practice • Authors: Narisha Maharaj --- Department of Radiology, South Africa Bhugwan Singh --- Department of Surgery, South AfricaSmall bowel obstruction is a common clinical presentation that presents a diagnostic conundrum. Over the last 2 decades, there has been a paradigm shift in the radiological investigation of small bowel obstruction (SBO) and in the indication for and timing... -
Caffeine versus aminophylline for the prevention of apnoea of prematurity in a teaching hospital in South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: Natalie Schellack --- Department of Paediatrics and Child Health, South Africa Andries GS Gous --- Department of Pharmacy, South Africa Patience B Mawela --- Department of Paediatrics and Child Health, South AfricaStudy objectives: To determine the safety and efficacy of the use of oral anhydrous caffeine and intravenous aminophylline in the neonatal population using therapeutic drug levels and clinical effects as markers for determination. -
Authentic leadership, psychological capital, job satisfaction and intention to leave in state-owned enterprises
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Simeon Amunkete --- Optentia Research Focus Area, South Africa Sebastiaan Rothmann --- Optentia Research Focus Area, South AfricaThis study investigated the relations among authentic leadership, psychological capital, job satisfaction and intention to leave within state-owned enterprises in Namibia. Participants were a convenience sample of 452 employees (females = 49.6%, mean age = 37.36, SD = 8.57) state-owned enterprises in Namibia. They completed the... -
Pattern of inappropriate cases presenting to the Accident and Emergency Department in a Nigeria Tertiary Hospital
Item type: Journal Article • Journal: South African Family Practice • Authors: Opunabo Nelson Young-Harry --- Department of Family Medicine, Nigeria Paul Owajionyi Dienye --- Department of Family Medicine, Nigeria Kaine Olaide Diete-Spiff --- Department of Family Medicine, NigeriaBackground: Although the primary mission of the Accident and Emergency Department (AED) is to provide initial treatment for life-threatening conditions, some patients make inappropriate use of the service. This study is aimed to determine the level of inappropriate use and... -
Common adverse cutaneous drug reaction patterns and the causative drugs in Malaysia
Item type: Journal Article • Journal: South African Family Practice • Authors: NH Talib --- Kelinik Kesihatan Tengkera, Malaysia M Leelavathi --- Department of Family Medicine, Faculty of Medicine, Malaysia Z Hamzah --- Department of Family Medicine, Faculty of Medicine, MalaysiaBackground: Patients with adverse cutaneous drug reactions (ACDRs) are frequently referred from primary care to tertiary centres for further management. This causes a loss of information regarding ACDRs as these patients discontinue primary care follow-up upon referral to tertiary care... -
Anaesthesia for a patient with beta thalassaemia major
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: T Kallenbach --- Department of Anaesthesia, South AfricaWhile beta thalassaemia is not a common disorder with an estimated 100 000 severely affected individuals worldwide, improved survival rates and increased global migration means an increased frequency of such patients being seen for various surgeries. The different aspects of this... -
Effect of Planting Material and Variety on Productivity and Survival of Napier Grass (pennisetum purpureum schumach) in the Coastal Lowlands of Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: A. Ramadhan --- Kenya Agricultural Research Institute, Kenya M. N. Njunie --- Kenya Agricultural Research Institute, Kenya K. K. Lewa --- Kenya Agricultural Research Institute, KenyaA study to determine a suitable planting method for multiplication of planting materials of Napier grass varieties was done at the Kenya Agricultural Research Institute (KARI) Msabaha in coastal lowland (CL) agro-ecological zone 4 (CL4). The experimental design was split-plot... -
The Relative Cost of Internal vs. External Equity in South Africa: The Impact of Capital Gains and Dividend Taxes
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Marcus --- Department of Finance and Tax, F Toerien --- Department of Finance and Tax,In order to investigate the impact of South Africa’s unique historical secondary tax on companies (STC) on optimal capital structure, we adapt the US methodology developed by Lewellen and Lewellen (2006) to cater for STC. Using our derived STC-models, we... -
Fish and macroinvertebrate community composition of a floodplain wetland associated with the Harts River, South Africa, in relation to water quality and habitat parameters
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: W Malherbe --- Water Research Group (Ecology), Unit for Environmental Science and Management, South Africa S Mahlangu --- Department of Zoology, South Africa M Ferreira --- Department of Zoology, South Africa V Wepener --- Water Research Group (Ecology), Unit for Environmental Science and Management, South AfricaThe Harts River and its associated floodplain, Northern Cape province, South Africa, are closely associated with the Vaalharts Irrigation Scheme. This floodplain has been poorly studied in the past, with no published aquatic information available. A fish and macroinvertebrate diversity... -
Aspects of tourism in Kenya
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: John Middleton --- Yale University, USATourism in Kenya dates back to the colonial era. Tourists have invented a map of Kenya that comprises mainly the Rift Valley and the Indian Ocean coast; and they divide the population into ‘noble’ pastoralists and less noble agriculturalists and... -
The evaluation of development projects. A South African anthropological perspective
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: RD Coertze --- Centre for Indigenous Law, South AfricaThe need to equate development with a process of self-directed westernisation in the present time is explained initially in this discussion. This is followed by a discussion on the involvement of the Ethnological Section of the former Department of Development... -
The Buysdorp conundrum: constructing and articulating community and identity in Soutpansberg, Limpopo Province
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael de Jongh --- Department of Anthropology and Archaeology,Coenraad de Buys, the great-grandson of Jean du Bois, a Huguenot immigrant from Calais, France, was by all accounts a formidable man. He left an indelible, often disruptive, mark on the historical, political and sociocultural landscape of South Africa. Coenraad... -
Capitalising on privilege: home-based businesses and informal settlements as a post-apartheid phenomenon in Indian dominated residential areas in Durban, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Anand Singh --- School of Sciences and Development Studies, University of KwaZulu-Natal, South AfricaThis paper is an ethnographic account of fieldwork that began in 1999 when African squatter camps in the Greater Durban metropolitan area accommodated people almost equal in number to the settled tax-paying Indian residents in the vicinity. While their numbers... -
Land is for people—experiences of the community of Khuis
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: PA Erasmus --- Department of Anthropology,This study is an investigation into the social history of the Tlharo, with the aim of articulating and clarifying the particular nature of their experiences in respect of land-related issues. Their circumstances are described against the background of the course... -
Women, difference and urbanisation patterns in Cape Town, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Andrew Spiegel --- Department of Social Anthropology, South Africa Vanessa Watson --- Department of Social Anthropology, South Africa Peter Wilkinson --- Department of Social Anthropology, South AfricaA point apparently often lost to policy makers is that those for whom policy is designed have very diverse life experiences. The article focuses on two women's experiences of urbanisation: experiences that are extremely different from one another, despite the... -
Shipwreck survivor camps: A neglected terrestrial component of maritime archaeology in South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Elizabeth van Tonder --- Department of Anthropology and Archaeology, South AfricaIn South Africa there has been limited systematic investigation of shipwreck survivor camps as an archaeological phenomenon. In most cases these sites are investigated purely as an adjunct to work on the associated wreck. The aim of this paper is... -
From exposé to care: Preliminary thoughts about shifting the ethical concerns of South African social anthropology
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Andrew Spiegel --- Department of Social Anthropology, South AfricaSocial anthropologists working in South Africa during the late apartheid period expressed their abhorrence of the apartheid system in the preamble to the association that they formed. Many set as their goal the work of ‘exposé anthropology’, using anthropology to... -
The end of culture? Some directions for anthropology at the University of Pretoria
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: John Sharp --- Department of Anthropology and Archaeology,This is the text of on inaugural lecture as Professor of Anthropology and Head of the Department of Anthropology and Archaeology at the University of Pretoria delivered on 19 October 2004. Several changes have been made to the text to... -
Locating community participation in a water supply project—the Galanefhi Water Project (Eritrea)
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Solomon Haile Gebremedhin --- Department of Economic Development, Central Region, Eritrea Francois Theron --- School of Public Management and Planning, University of Stellenbosch,Water projects, like sustainable development projects in general, often tend to become unsustainable because they are guided by top-down strategies which exclude the input, influence and ownership of projects by their beneficiaries. For attaining sustainable development, the social capital of... -
Succession to Bogosi among the Batlhako ba Matutu in a changing dispensation
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: RD Coertze --- School of Law, University of South Africa, FC de Beer --- Department of Anthropology and Archaeology,Dealing with a succession dispute among the Batlhako ba Matutu required a study of their politico-administrative structure, their marriage rules and procedures, as well as the genealogical succession of their senior traditional leaders since 1830. Research findings disclosed traditional rules... -
The Constitutional right to culture and the judicial development of Indigenous Law: a comparative analysis of cases
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Joan Church --- Department of Jurisprudence, Jacqueline Church --- Department of Procedural Law, Faculty of Law,Although integral to the culture of indigenous peoples in South Africa, indigenous law was historically only recognised as a personal law subservient to the general law. This is no longer so. In the Constitution of the Republic of South Africa,... -
The possibility of a critical anthropology after apartheid: relevance, intervention, politics
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Kelly Gillespie --- University of Pretoria, Anthropology and Archaeology, South Africa Bernard Dubbeld --- University of Pretoria, Anthropology and Archaeology, South AfricaThis paper, prompted by an Anthropology Southern Africa conference around the theme ‘Public Anthropology’, argues that any post-apartheid anthropology that abandons criticality as a core disciplinary principle risks dispelling any radical content that anthropology may have to offer South African... -
Socio-economic rights and anthropology? The case of Deaf people who use South African Sign Language (SASL) in a university setting
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Marion Heap --- Health and Human Rights Division,As a response to Van der Waal and Ward's (2006) invitation, this article suggests human rights, particularly socio-economic rights, as a conceptual framework to take forward anthropology in post-apartheid South Africa. Entrenchment of human rights in South Africa's Constitution marks... -
Global and African: exploring hip-hop artists in Philippi Township, Cape Town
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Heike Becker --- Dept of Anthropology & Sociology, Nceba Dastile --- Dept of Anthropology & Sociology,This article investigates hip-hop, identity and global cultural flows among young people in contemporary Cape Town. We argue that hip-hop functions as a vehicle for identity negotiations in contemporary South Africa. The discussion of hip-hop in an ‘African’ township shows... -
Shoveling sand or changing the nation?: transformation activism in Cape Town
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Catherine Besteman --- Department of Anthropology, -
Racism as epithet in the context of post-apartheid's demographic parity goals
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Andrew Spiegel --- University of Cape Town,Nearly twenty years after the capitulation of the apartheid state, South Africa's post-apartheid government continues to find it necessary to seek means to direct change in the demographic profile of the country's leading institutions towards a situation where it reflects... -
Medicine from the Father: Bossiesmedisyne, people, and landscape in Kannaland
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Joshua B. Cohen --- University of Cape Town, South AfricaIn the rural Western Cape local municipality of Kannaland, the word ‘bossiesmedisyne’ (lit. bushes medicine), refers to plant and sometimes animal material used to treat and alleviate a wide range of health problems, ranging from colds to cancer. Based on... -
Capital letters: material dissent and place name change in the ‘new’ South Africa, 2005–2006
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Natalie Swanepoel --- Department of Anthropology and Archaeology,In 2005 the municipal council that oversees Pretoria (South Africa's administrative capital) voted to officially change the name of the city to Tshwane. This was met with sustained resistance from various interest groups within the city. This is emblematic of... -
Silencing the past: historical and archaeological colonisation of the Southern San in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael Francis --- Athabasca University, I University Drive, CanadaThe San of the Drakensberg are assumed to be extinct. Yet, there are Zulu-speaking people in the Drakensberg who still identify as San. These people and their claims both challenge the preconceived notions of what it means to be San... -
An exposé ethnography of Zimbabwe's internally displaced ex-farm workers: Practical and ethical dilemmas
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Andrew Hartnack --- Department of Anthropology,From 2000 onwards, Zimbabwe's often violent land invasions displaced at least 500 000 farm workers from white-owned commercial farms across the country. While studies subsequently conducted on the land invasions tended to focus on their impact on farm workers who... -
Memory, landscape and event: How Ndebele labour tenants interpret and reclaim the past
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Chris J van Vuuren --- Department of Anthropology and Archaeology,The article discusses the roots of memory of former Ndebele labour tenants, and how these memories manifest in landscape, object and event. Recognising the role of history that bound most of the Ndundza community into labour tenancy, the author unpacks... -
ICT4D and the Siyakhula Living Lab: an anthropological contribution to digital development
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Robin Palmer --- Rhodes University, South AfricaAnthropologists are increasingly interested in the reception and adaptation of Information and Communications Technologies (ICTs) at the local level, especially when these are intended or adapted for social change in the kinds of societies and communities anthropologists study. The process... -
Men, women, temporality and critical ethnography in Africa—the imperative for a transdisciplinary conversation
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Elaine Salo --- Institute for Women's and Gender Studies, University of Pretoria,This article addresses concerns of African-based scholars about how we can adequately represent the social heterogeneity and the rich diversity of African subjects. I argue that by prioritising Pan-Africanist solidarity, and in our search for African authenticity, we often represent... -
New insights on trust, honour and networking in informal entrepreneurship: Zimbabwean malayishas as informal remittance couriers
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Phefumula Nyoni --- Department of Anthropology,The paper focuses on the utility of the concepts of trust and honour in understanding relations among Zimbabwean remittance couriers who are popularly known as “malayishas”. Trust and honour are explored in relation to how they produce and sustain a... -
Revisiting ‘township tourism’: multiple mobilities and the re-territorialisation of township spaces in Cape Town, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jessica L. Dickson --- University of Cape Town, South AfricaThis article explores themes of social space and mobility significant to tourism within the townships near Cape Town, South Africa. Research on the emergence of ‘township tourism’ has produced contrasting interpretations. Some authors describe essentialised notions of ‘Africanness’, ‘culture’, and... -
The burden of responsibility and the breakdown of traditional paternalism on farms in the Western Cape
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Handri Walters --- Department of Sociology and Social Anthropology, South AfricaThe transition that followed the 1994 democratic election in South Africa brought with it a host of progressive legislation aimed at the provision of a secure environment for those previously marginalised. The Extension of Security of Tenure Act (ESTA) (1997)... -
Public holidays as lieux de mémoire: nation-building and the politics of public memory in South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Sabine Marschall --- Cultural and Heritage Tourism Programme, South AfricaThis article engages with public holidays in post-apartheid South Africa as lieux de mémoire, ‘sites of memory’ that preserve particular interpretations of historical events and selected heroes for inscription into the collective memory of the nation. It first traces the... -
From ‘One Namibia, one Nation’ towards ‘Unity in Diversity’? Shifting representations of culture and nationhood in Namibian Independence Day celebrations, 1990–2010
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael Uusiku Akuupa --- Dept. of Anthropology and Sociology, South Africa Godwin Kornes --- Dept. of Anthropology and African Studies, GermanyIn 2010 Namibia celebrated its twentieth anniversary of independence from South African rule. The main celebrations in the country's capital Windhoek became the stage for an impressively orchestrated demonstration of maturing nationhood, symbolically embracing postcolonial policy concepts such as ‘national... -
The Human Economy Project: first steps
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: John Sharp --- The Human Economy Project, Faculty of Humanities, South Africa Theodore Powers --- The Human Economy Project, Faculty of Humanities, South Africa Vito Laterza --- The Human Economy Project, Faculty of Humanities, South AfricaThe Human Economy Project is interdisciplinary in scope, but relies extensively on anthropological research methods. These methods are an appropriate counter to the methods adopted in mainstream economics, which has been criticised for its isolation from ‘the ordinary business of... -
On law and legality in post-apartheid South Africa: insights from a migrant street trader
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jürgen Schraten --- The Human Economy Project, Faculty of Humanities, South AfricaThis article focuses on the experience of law and legality by a migrant street trader in post-apartheid South Africa. The experiences of this stall vendor are analysed alongside theoretical notions of law and the legal system. The ways that law... -
Biology, incidence and host susceptibility of Pineus boerneri (Hemiptera: Adelgidae) in Colombian pine plantations
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Carlos A Rodas --- Forestry Protection Programme, Colombia Rubén Serna --- Universidad Nacional de Medellín, Colombia Maria D Bolaños --- Forestry Protection Programme, Colombia Ginna M Granados --- Forestry Protection Programme, Colombia Michael J Wingfield --- Department of Zoology and Entomology, South Africa Brett P Hurley --- Department of Zoology and Entomology, South AfricaAdelgids (Hemiptera) in the genus Pineus have been reported as introduced insect pests causing serious losses to Pinus plantations worldwide. In 2008, Pineus boerneri was recorded for the first time in Colombia, with infestations noted on Pinus kesiya, P. tecunumanii,... -
Assessing the utility of ALOS PALSAR and SPOT 4 to predict timber volumes in even-aged Eucalyptus plantations located in Zululand, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Riyad Ismail --- Sappi Forests, South Africa Horst Kassier --- Sappi Forests, South Africa Morries Chauke --- Sappi Forests, South Africa Francesco Holecz --- Sarmap SA, Switzerland Nico Hattingh --- Sappi Forests, South AfricaIn commercial forestry, regular terrestrial enumerations of the growing stock are required for the valuation, sustain-able management and planning of current and future timber supplies. In this study we examined whether the combination of synthetic aperture radar (ALOS PALSAR) and... -
Diseases on Eucalyptus species in Zimbabwean plantations and woodlots
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Luke Jimu --- Forest Science Postgraduate Programme, Forestry and Agricultural Biotechnology Institute (FABI), South Africa Michael J Wingfield --- Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI), South Africa Eddie Mwenje --- Bindura University of Science Education, Zimbabwe Jolanda Roux --- Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI), South AfricaZimbabwe embarked on planting Eucalyptus species in the early 1900s. Based on a robust breeding programme, it has become a major source of seed for other countries in and outside Africa. Tree health surveys conducted on Eucalyptus in some east... -
A new subfossil bulbul (Aves: Passerines: Pycnonotidae) from Rodrigues Island, Mascarenes, south-western Indian Ocean
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Julian P Hume --- Bird Group, Department of Life Sciences, UKThe Hypsipetes bulbuls (Pycnonotidae) occur on Madagascar and oceanic islands throughout the Indian Ocean, as well as continental Asia. Endemic species are found on the Mascarene Islands of Mauritius and Réunion, but the genus was purportedly never reported from Rodrigues,... -
Telling stories and adding scores: Measuring resilience in young children affected by maternal HIV and AIDS
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Liesel Ebersöhn --- Centre for the Study of Resilience and Department of Educational Psychology, South Africa Irma Eloff --- Centre for the Study of Resilience and Department of Educational Psychology, South Africa Michelle Finestone --- Centre for the Study of Resilience and Department of Educational Psychology, South Africa Adri Grobler --- Centre for the Study of Resilience and Department of Educational Psychology, South Africa Melanie Moen --- Centre for the Study of Resilience and Department of Educational Psychology, South Africa“Telling stories and adding scores: Measuring resilience in young children affected by maternal HIV and AIDS”, demonstrates how a concurrent mixed method design assisted cross-cultural comparison and ecological descriptions of resilience in young South African children, as well as validated... -
Movement patterns of Lichia amia (Teleostei: Carangidae): results from a long-term cooperative tagging project in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Stuart W Dunlop --- Oceanographic Research Institute, South Africa Bruce Q Mann --- Oceanographic Research Institute, South Africa Paul D Cowley --- South African Institute for Aquatic Biodiversity, South Africa Taryn S Murray --- South African Institute for Aquatic Biodiversity, South Africa Jade Q Maggs --- Oceanographic Research Institute, South AfricaUnderstanding fish movement patterns and migrations is important for fisheries management as well as the identification and conservation of critical habitats. Data collected by the Oceanographic Research Institute's Cooperative Fish Tagging Project (ORI-CFTP) were used to describe the large-scale movement... -
Characteristics and landcover of estuarine boundaries: implications for the delineation of the South African estuarine functional zone
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DA Veldkornet --- Department of Botany, South Africa JB Adams --- Department of Botany, South Africa L van Niekerk --- Department of Botany, South AfricaThis study investigated whether the current lateral boundary for estuaries in South Africa, i.e. the estuarine functional zone (EFZ), includes all estuarine habitats. The EFZ covers 173 930 ha in 304 estuaries/outlets nationally. Field surveys and analysis of available aerial... -
A comparison of genetic structure in two low-dispersal crabs from the Wild Coast, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: Y Qhaji --- Molecular Zoology Laboratory (Aquatic Division), Department of Zoology, South Africa B Jansen van Vuuren --- Molecular Zoology Laboratory (Aquatic Division), Department of Zoology, South Africa I Papadopoulos --- Molecular Zoology Laboratory (Aquatic Division), Department of Zoology, South Africa CD McQuaid --- Department of Zoology and Entomology, South Africa PR Teske --- Molecular Zoology Laboratory (Aquatic Division), Department of Zoology, South AfricaThe Wild Coast in south-eastern South Africa is strongly influenced by the warm, southward-flowing Agulhas Current. This current has a significant impact on dispersal in the coastal biota of the region, and facilitates high levels of connectivity among populations. However,... -
A computer-aided framework for subsurface identification of white shark pigment patterns
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Dureuil --- Department of Biology, Canada AV Towner --- Dyer Island Conservation Trust, South Africa LG Ciolfi --- Center for Marine Biology, Brazil LA Beck --- Department of Biology, GermanySubsurface video footage can be used as a successful identification tool for various marine organisms; however, processing of such information has proven challenging. This study tests the use of automated software to assist with photo-identification of the great white shark... -
Abundance and degree of residency of humpback dolphins Sousa plumbea in Mossel Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BS James --- Mammal Research Institute, South Africa MN Bester --- Mammal Research Institute, South Africa GS Penry --- Mammal Research Institute, South Africa E Gennari --- Oceans Research, South Africa SH Elwen --- Mammal Research Institute, South AfricaIndian Ocean humpback dolphins Sousa plumbea inhabit nearshore waters from South Africa to eastern India. Humpback dolphins are vulnerable to conservation threats due to their naturally small population sizes and use of nearshore habitats, where human activities are highest. We... -
Roald Dahl: A psychosexual developmental trajectory study illustrated within psychobiography
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Paul Fouché --- Department of Psychology, Faculty of the Humanities, South Africa Tania Holz --- Department of Psychology, Faculty of the Humanities, South AfricaThis study applies analytical psychobiography, particularly Freud's psychoanalytic apporoach, to the study of the psychosexual development of Roald Dahl (1916–1990), a renowned children's author, gentleman spy, connoisseur, and philanthropist of his time. Data sources for the analysis included primary and... -
The spiritual wellness of Beyers Naudé: A psychobiographical study of a South African anti-apartheid theologian
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Paul Fouché --- Department of Psychology, Faculty of Humanities, South Africa Barbara Burnell --- Department of Psychology, Faculty of Humanities, South Africa Roelf van Niekerk --- Department of Industrial and Organisational Psychology, South AfricaThe study explores and describes Beyers Naudé's (1915–2004) spiritual wellness across his lifespan. Naudé's life history was uncovered through the systematic collection and analyses of life history materials. Data were interpreted applying the Wheel of Wellness model (WoW) by Sweeney... -
Psychobiography in psychology: Past, present, and future
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joseph G. Ponterotto --- Division of Psychological and Educational Services, USAThe present article reviews the history and emerging trends in the field of psychobiography. Five historical periods are highlighted: hagiography and pre-19th century study of lives; Freud and applied psychoanalysis; psychodynamic extensions and personology; modern multi-theoretical models; and psychobiography as... -
A psychobiographical analysis of Dambudzo Marechera's personal development through his writings
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kudakwashe C Muchena --- School of Behavioural Sciences, South Africa Greg Howcroft --- School of Behavioural Sciences, South Africa Louise Stroud --- School of Behavioural Sciences, South AfricaThis study applied psychobiography to explore the personal development of Zimbabwean novelist Dambudzo Marechera – and particularly focus on psychological disintegration. For the evidence, we examined primary and secondary works on his life history with special attention to his literary... -
Hagiography: Current and prospective contributions
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gregory Mitchell --- Department of Psychology, South Africa Greg Howcroft --- Department of Psychology, South AfricaThis study considers the historical development of hagiographic research, including its antecedents and contemporary motivations and intentions. As a sub-approach of psychobiographical research, hagiography's defining qualities include the venerability of the subject, the aim of edifying the reader and illustrating... -
Factors associated with self-rated health status among university students from 26 low, middle and high income countries
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- ASEAN Institute for Health Development, Thailand Karl Peltzer --- ASEAN Institute for Health Development, Thailand T. Alafia Samuels --- Faculty of Medical Sciences, Barbados Alexander Gasparishvili --- Lomonosov Moscow State University, RussiaThe aim of this study was to investigate self-reported health status and associated factors in low, middle and high income countries. Using anonymous questionnaires, data were collected in a cross-sectional survey from 19 811 undergraduate university students (mean age=20.8, SD=2.8)... -
The prevalence and associations of erectile dysfunction in a South African male diabetic urban population
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: T Kemp --- Faculty of Health Sciences, Department of Internal Medicine, South Africa P Rheeder --- Faculty of Health Sciences, Department of Internal Medicine, South AfricaBackground: Erectile dysfunction (ED) is a common condition in patients with type 1 or type 2 diabetes mellitus. The prevalence and predictors in our patient population are unknown since minimal data exist for this condition in South Africa. -
Cervical intraepithelial neoplasia
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: L A Denny --- Department Obstetrics and Gynaecology, -
Cervical cancer in Southern Africa: The challenges
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: M Moodley --- Department of Obstetrics and Gynaecology, -
Radiation therapy for cervix carcinoma: the benefits and constraints in sub-Saharan Africa
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: H M Simonds --- Division of Radiation Oncology, Tygerberg Hospital, South AfricaCervix carcinoma is one of the most prevalent cancers in women in Africa. Primary and secondary prevention measures in place are currently not sufficient to prevent further cases. Radiotherapy is the main therapeutic option as most cases present at a... -
Imaging in gynaecological oncology follow-up
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: B R Howard --- Department of Obstetrics and Gynaecology, Gynaecology Oncology Unit, R P Soeters --- Department of Obstetrics and Gynaecology, Gynaecology Oncology Unit,The early detection of a gynaecological cancer recurrence is important in order to institute early treatment. Numerous imaging techniques have been used to follow up patients after treatment of gynaecological malignancies. These include plain X-rays, ultrasound, CT scan, MRI scan... -
Long-term complications of pelvic radiotherapy
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: H Simonds --- Division of Radiation Oncology Tygerberg Hospital/University of Stellenbosch,Complications following pelvic radiation are frequently under-reported and inadequately addressed. This overview examines the nature and the intensity of complications encountered by cancer survivors; it focuses specifically on gastrointestinal and vaginal complications, and the problems surrounding the methods of recording... -
The management of epithelial ovarian cancer: neoadjuvant chemotherapy and interval surgery
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: D G Allen --- Mercy Hospital for Women, Australia -
Understanding and incorporating human papillomavirus testing in cervical cancer screening: a South African perspective
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: K L Richter --- Department of Medical Virology,The identification of human papillomavirus (HPV) as the aetiological agent for cervical cancer has important implications for the future of cervical cancer screening and prevention strategies. Despite the availability of HPV vaccines, regular and adequate screening will remain the mainstay... -
Knowledge, awareness and utilisation of the human papillomavirus vaccine in Durban
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: N Allie --- Lecturer/Specialist; Obstetrics and Gynaecology, Nelson R Mandela School of Medicine, M Moodley --- Specialist Obstetrican and Gynaecologist,Background: Human papillomavirus (HPV) is the causative agent of cervical cancers, low-grade cervical lesions, and warts of the genital tract. Since March 2008, a vaccine against HPV has been licensed for use in South Africa to reduce the incidence of... -
High-risk human papillomavirus screening and testing with immunohistochemical surrogate biomarkers: an alternative to polymerase chain reaction
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: L J Van Bogaert --- Pathologist National Health Laboratory Service and University of Limpopo, -
A pilot study of two radiation fractionation regimens in patients with cancer of the cervix, who were HIV positive and not on antiretroviral therapy
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: A M Hocepied --- Department of Radiation Oncology, H Westerink --- Department of Radiation Oncology, R Lakier --- Department of Radiation Oncology,The Department of Radiation Oncology at the previously named Pretoria Academic Hospital (now the Steve Biko Hospital) undertook a pilot study between 2000 and 2001 of 20 patients who were human immunodeficiency virus-positive with locally advanced cancer of the cervix... -
Bilateral serous papillary cystadenofibroma of the ovaries in a young female
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: M Nisha --- Department of Pathology, India A Garima --- Department of Hematology, India S Sneh --- Department of Pathology, India R Parveen --- Department of Pathology, India -
Cervical cancer screening programme in Limpopo province: January 2007 to December 2010
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: M T Mamahlodi --- HIV/AIDS, National Institute for Communicable Disease; National Health Laboratory Services; School of Health Systems and Public Health, University of Pretoria, L R Kuonza --- National Institute for Communicable Diseases, South Africa S Candy --- Corporate Data Warehouse; National Health Laboratory Services,Objective: South Africa launched a cervical screening policy in 2001 and aimed to screen 70% of women aged 30 years and older by the year 2010. The current study describes the performance of the cervical cancer screening programme that was... -
The types and treatment outcomes of germ cell tumours of the ovary seen at Groote Schuur Hospital, Cape Town, between 1994 and 2008: a retrospective survey
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: K E A Mohammed --- Division of Radiation Oncology, A L van Wijk --- Division of Radiation Oncology,Objective: This retrospective observational study aims to review patients with malignant ovarian germ cell tumours (MOGCTs) treated at Groote Schuur Hospital over a 15-year period. -
Consensus recommendations for the prevention of cervical cancer in sub-Saharan Africa
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: I F Adewole --- Department of Obstetrics and Gynaecology, Nigeria Y R Abauleth --- University Teaching Hospital of Cocody, Cote d’Ivoire I Adoubi --- Oncology Unit, Teaching Hospital of Treichville Teacher, Medical College; Coordinator of the PNLC, Cote d’Ivoire F Amorissani --- Department of Paediatrics, Cote d’Ivoire R I Anorlu --- Professor College of Medicine, University of Lagos/Lagos University Teaching Hospital, Nigeria O A Awolude --- Obstetrician and Gynaecologist College of Medicine, University of Ibadan/University College Hospital, Nigeria H Botha --- Associate Professor and Head Unit of Gynaecological Oncology, Stellenbosch University; Tygerberg Academic Hospital, South Africa J K Byamugisha --- Department of Obstetrics and Gynaecology Makerere University School of Medicine, College of Health Sciences, Makerere University, Uganda L Cisse --- Head of Neonatal Unit, Paediatric Unit, Treichville Teaching Hospital Center, Cote d’Ivoire M Diop --- Director of Dakar Cancer Institute, Le Dantec University Hospital, Senegal S Doh --- Emeritus Professor of Obstetrics and Gynaecology, Cameroon A O Fabamwo --- Lagos State University College of Medicine Ikeja, Nigeria D Gahouma --- Clinic Union Medical, University of Health Sciences, Gabon H S Galadanci --- Medical Advisory Committee; Obstetrician and Gynaecologist, Aminu Kano Teaching Hospital, Nigeria D Githanga --- Kenyan Paediatric Association, Kenya T M Magure --- University of Zimbabwe College of Health Sciences, Zimbabwe C Mabogunje --- Massey Street Children’s Hospital, Nigeria J Mbuthia --- University of Nairobi, Kenya L W Muchiri --- Department of Human Pathology, Kenya O Ndiaye --- Cheikh Anta Diop University of Dakar, A M Nyakabau --- Clinical Oncologist, Parirenyatwa Hospital, Zimbabwe S B O Ojwang --- Professor of Obstetrics and Gynaecology, University of Nairobi, Kenya D Ramogola-Masire --- University of Pennsylvannia; University of Botswana, Botswana O Sekyere --- Korle-Bu Teaching Hospital, Ghana T H Smith --- University of Witwatersrand, Charlotte Makeke Johannesburg Academic Hospital, South Africa F O G Taulo --- Director Centre for Reproductive Health, Deputy Head and Associate Professor College of Medicine, Malawi A Wewege --- Private Practice, South Africa E Wiredu --- University of Ghana Medical School and School of Allied Health Sciences, Ghana O Yarosh --- Yarosh Medservice (PTY), Gaborone Private Hospital, BotswanaCervical cancer is the second most common cancer and the leading cause of cancer-related death in women in sub-Saharan Africa. It is estimated that more than 200 million females older than 15 years are at risk in this region. This... -
Prolonged survival after laparoscopic splenectomy for recurrent ovarian cancer and no adjuvant therapy: a report and review of the literature
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: F Marriqoun-Harris --- The Sydney Gynaecologic Oncology Group, Sydney Cancer Centre, Royal Prince Alfred Hospital, Y J J Rhou --- The Sydney Gynaecologic Oncology Group, Sydney Cancer Centre, Royal Prince Alfred Hospital, D Storey --- The University Of Sydney, Australia S Pather --- The Sydney Gynaecologic Oncology Group, Sydney Cancer Centre, Royal Prince Alfred Hospital, -
Alternative sampling methods for cervical cancer screening: practical perspectives from the laboratory
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: K L Richter --- Consultant Pathologist and Clinical Virologist, Department of Medical Virology,The coverage of cervical cancer screening in South Africa is inadequate, with an estimated 8.8-million unscreened women who are mainly serviced by the public health sector in lower-resourced areas. Alternative screening options need to be considered. Every step in the... -
Human papillomavirus-type distribution in South African women without cytological abnormalities: a peri-urban study
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: M C Van Aardt --- Head Gynaecological Oncology Unit, Steve Biko Academic Hospital, University of Pretoria, G Dreyer --- Head Gynaecological Oncology Unit, Steve Biko Academic Hospital, University of Pretoria, K L Richter --- Department of Medical Virology, P Becker --- Biostatistician, Biostatistics Unit, South African Medical Research Council, TygerbergObjectives: Knowledge of human papillomavirus (HPV) distribution in the general population is crucial for the development of new HPV vaccines and to provide a baseline from which to monitor the impact of current HPV vaccines in the future. HPV-type distribution... -
HPV L1 capsid protein detection in high-risk human papillomavirus-positive cervical smears
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: N Heunis --- Department of Anatomical Pathology – Cytology, A Horton --- Consultant Pathologist and Clinical Virologist, Department of Medical Virology, K L Richter --- Consultant Pathologist and Clinical Virologist, Department of Medical Virology, G Dreyer --- Department of Obstetrics and Gynaecology, M Louw --- Department of Anatomical Pathology,Background: The L1 capsid protein is a viral nuclear protein that encapsidates the human papillomavirus (HPV) DNA to build new infectious particles. Previous studies in immune-competent patients have shown that detectable L1 protein in lowgrade squamous intraepithelial lesion (LSIL) smears... -
Pharmacological options for the protection of ovarian function in patients undergoing chemotherapy
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: MH Botha --- Unit for Gynaecological Oncology, Department of Obstetrics and Gynaecology, Faculty of Medicine and Health Sciences,Chemotherapy, particularly alkylating agents, can be toxic to germ cells, and may lead to treatment amenorrhoea in young women. The age at which chemotherapy is administered is a strong predictor of subsequent premature ovarian failure, with older patients being at... -
Retrospective analysis of patients with cancer of the cervix attending a radiotherapy outpatient department: experience from a university-based hospital in eastern Uttar Pradesh, India
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: M Nandi --- Department of Radiation Oncology, India A Mandal --- Department of Radiotherapy and Radiation Medicine, Institute of Medical Sciences, India AK Asthana --- Radiotherapy and Radiation Medicine, Institute of Medical Sciences, IndiaObjective: A retrospective analysis of all patients with cancer of the cervix attending a radiotherapy outpatients department in a single unit from January 2005 to December 2006 was carried out to study their epidemiology, stage and status of presentation, compliance... -
The impact of HIV infection on women receiving radiation for cervical cancer
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Mapule Mangena --- Gynaecological Oncology Unit, Department of Obstetrics and Gynaecology, Leon Snyman --- Gynaecological Oncology Unit, Department of Obstetrics and Gynaecology, Greta Dreyer --- Gynaecological Oncology Unit, Department of Obstetrics and Gynaecology, Sheynaz Bassa --- Department of Radiation Oncology, Piet Becker --- Research Office, Faculty of Health Sciences,Background: The objective of the study was to compare patient characteristics, treatment toxicity and interruptions, and survival in human immunodeficiency virus (HIV)-positive and HIV-negative cervical cancer patients receiving radiation as primary or adjuvant treatment. -
Cobalt-60 is a logical, economical and comparable alternative to Ir-192: analysis and institutional experience from western India
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Upendra Nandwana --- Radiotherapy Department, India Narendra Rathore --- Radiotherapy Department, India Sunnia Gupta --- Radiotherapy Department, India Arvind Shukla --- Radiotherapy Department, India Satish Kumar --- Radiotherapy Department, India Kiran Intodia --- Radiotherapy Department, India Poonam Chand Bana --- Radiotherapy Department, India Abhay Jain --- Radiotherapy Department, IndiaObjectives: The objective of the study was to examine the dosimetry of intracavitary radiotherapy (ICRT) in carcinoma of the cervix using cobalt-60 (Co-60) as source of ICRT, and as an alternative to iridium-192 (Ir-192). -
Antimicrobial Susceptibility Patterns of Selected Bacteraemic Isolates from South African Public Sector Hospitals, 2010
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: C Bamford --- National Health Laboratory Service (NHLS), Groote Schuur and University of Cape Town, K Bonorchis --- National Health Laboratory Service (NHLS), Green Point and University of Cape Town, A Ryan --- National Health Laboratory Service (NHLS), Green Point and University of Cape Town, J Simpson --- National Health Laboratory Service (NHLS), Green Point and University of Cape Town, E Elliott --- National Health Laboratory Service (NHLS), Universitas and University of the Free State, R Hoffmann --- National Health Laboratory Service (NHLS), Tygerberg and Stellenbosch University, P Naicker --- National Health Laboratory Service (NHLS), Tygerberg and Stellenbosch University, N Ismail --- National Health Laboratory Service (NHLS), Steve Biko Academic and University of Pretoria, N Mbelle --- National Health Laboratory Service (NHLS), Dr George Mukhari and University of Limpopo, M Nchabeleng --- National Health Laboratory Service (NHLS), Dr George Mukhari and University of Limpopo, T Nana --- National Health Laboratory Service (NHLS), Charlotte Maxeke Johannesburg Academic and University of the Witwatersrand, C Sriruttan --- National Health Laboratory Service (NHLS), Charlotte Maxeke Johannesburg Academic and University of the Witwatersrand, S Seetharam --- National Health Laboratory Service (NHLS), Chris Hani Baragwanath and University of the Witwatersrand, J Wadula --- National Health Laboratory Service (NHLS), Chris Hani Baragwanath and University of the Witwatersrand,We report on antimicrobial susceptibility surveillance data for six key bloodstream pathogens (Escherichia coli, Klebsiella pneumoniae, Enterobacter spp., Pseudomonas aeruginosa, Acinetobacter baumannii and Staphylococcus aureus) identified in public sector hospitals in South Africa during 2010. Major findings include the accelerated... -
A Patient from Limpopo province presenting with haematuria: what is the diagnosis?
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Zaeem Ebrahim --- Department of Radiology, Kalafong Hospital, Nausheen Khan --- Department of Radiology, Kalafong Hospital, Farzanah Ismail --- Department of Radiology, Kalafong Hospital,We present a quiz-case of a 28-year-old female patient, from Limpopo province, who presented with haematuria, hepatosplenomegaly and caput medusae. Computed tomography (CT) imaging fndings are provided. The diagnosis is provided in the discussion below. -
Review and empirical comparison of joint mapping of multiple diseases
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Samuel Manda --- Biostatistics Unit, South African Medical Research Council, South Africa Richard Feltbower --- Centre for Epidemiology and Biostatistics, Leeds Institute of Genetics and Therapeutics, University of Leeds, United Kingdom Mark Gilthorpe --- Centre for Epidemiology and Biostatistics, Leeds Institute of Genetics and Therapeutics, University of Leeds, United KingdomThere has been a substantial amount of recent modelling work in multivariate disease-mapping models in epidemiology. These models provide information on similarities, as well as differences, on the effect of risk factors among diseases. Additionally, they can be used to... -
Characterisation of staphylococcus aureus bacteraemia at Tygerberg hospital
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: H. Orth --- Division of Medical Microbiology, Department of Pathology, Stellenbosch University, Z.S. Dreyer --- Division of Medical Microbiology, Department of Pathology, Stellenbosch University, E. Makgotlho --- Institute of Hygiene and Microbiology, University of Würzburg, W. Oosthuysen --- Division of Medical Microbiology, Department of Pathology, B. Sinha --- Department of Medical Microbiology, University of Groningen, E. Wasserman --- Pathcare Laboratories,To elucidate the local epidemiology of Staphylococcus aureus bacteraemia, we characterised blood culture isolates using molecular methods and prospectively collected clinical data to determine the occurrence of community-acquired, methicillin-resistant S. aureus (MRSA). Consecutive S. aureus blood culture isolates were collected... -
Prevalence of carbapenem resistance genes in Acinetobacter baumannii isolated from clinical specimens obtained from an academic hospital in South Africa
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: M.M. Kock --- , A.N. Bellomo --- , N. Storm --- , M.M. Ehlers --- ,Acinetobacter baumannii is an important cause of hospital-acquired infections. The occurrence of carbapenem resistance that is caused by the carbapenem-hydrolysing class Dβ-lactamases and the metallo-β-lactamases (MBLs) limits the range of therapeutic alternatives in treating A. baumannii infections. In this study,... -
Repeatability of manual coding of cancer reports in the South African National Cancer Registry, 2010
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Nomathemba Dube --- School of Health Systems and Public Health, University of Pretoria, South African Field Epidemiology and Laboratory Training Programme, Brendan Girdler-Brown --- School of Health Systems and Public Health, University of Pretoria, Khin Tint --- School of Health Systems and Public Health, University of Pretoria, South African Field Epidemiology and Laboratory Training Programme, National Institute for Communicable Diseases, Patricia Kellett --- South African National Cancer Registry, National Institute for Occupational Health,Data validity is a very important aspect of cancer registries in ensuring data quality for research and interventions. This study focused on evaluating the repeatability of manual coding of cancer reports in the South African National Cancer Registry (NCR). This... -
Reality bites of spider bites: a case report and review of the local epidemiology
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: A. Visser --- Department of Medical Microbiology, H.F. Visser --- Eugene Marais Life Hospital, -
Knowledge and awareness of human papillomavirus and intention with regard to human papillomavirus vaccine uptake by female tertiary students in the Eastern Cape province
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: A. Chikandiwa --- Researcher Wits Reproductive Health and HIV Research Institute, B.E. van Wyk --- School of Public Health,In 2008, two human papillomavirus (HPV) vaccines, Cervarix® and Gardasil®, were licensed for use in South Africa. Initial models showed that vaccination could lead to an approximate 70% decline in cervical cancer cases. This paper describes the knowledge, awareness and... -
The SASCM CRE-WG: consensus statement and working guidelines for the screening and laboratory detection of carbapenemase-producing Enterobacteriaceae
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: W Lowman --- , C Bamford C Govind K Swe Swe Han R Kularatne M Senekal A Brink P Moodley J Thomas J Smit O Perovic -
Anal human papillomavirus and anal squamous cell cancer in people living with HIV/AIDS: implications for southern africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: S Chirkut --- King Edward VIII Hospital,Southern Africa has the largest burden of human immunodeficiency virus (HIV)/acquired immune deficiency syndrome (AIDS) in the world. Highly active antiretroviral therapy (HAART) is increasingly being made available in the region. The disease has shifted from being a death sentence... -
A retrospective review of group B streptococcal infection in the Metro East area of the Western Cape province: 2010 to 2011
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: L Frigati --- Department of Paediatrics, Tygerberg Children’s Hospital, J L van der Merwe --- Department of Obstetrics and Gynaecology, Tygerberg Hospital, J Harvey --- Head Statistician, Centre for Statistical Application, H Rabie --- Department of Paediatrics, Tygerberg Children’s Hospital, G Theron --- Department of Obstetrics and Gynaecology, Tygerberg Hospital, M F Cotton --- Department of Paediatrics, Tygerberg Children’s Hospital,Effective strategies to prevent infant death rely on knowledge of prevalent pathogens. Recent publications have drawn attention to limited data on the contribution of group B streptococcal infection to neonatal and infant mortality in resource-restricted settings. The aim was to... -
Ratification of rapid rotavirus diagnostic test strips
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: E M C Theron --- Department of Life and Consumer Sciences, M M Nyaga --- Diarrhoeal Pathogens Research Unit, University of Limpopo, Medunsa Campus; WHO Rotavirus Regional Reference Laboratory, J B Dewar --- Department of Life and Consumer Sciences,The World Health Organization and Centers for Disease Control and Prevention estimate that rotavirus-associated gastroenteritis is the third most common cause of death in young children, with approximately 453 000 deaths annually, and that more than 90% of these deaths... -
Factors associated with retreatment tuberculosis in Tshwane, south africa: the role of tobacco smoking
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: G M C Louwagie --- Public Health Medicine, School of Health Systems and Public Health, Faculty of Health Sciences, University of Pretoria, O A Ayo-Yusuf --- Dean/Director’s Office, School of Oral Health Sciences, Faculty of Health Sciences, University of Limpopo, Medunsa Campus Director, Southern Africa Resilient Africa Innovation Laboratory, Grant Recipient American Cancer Society,There is evidence from international studies that tobacco smoking increases the risk of tuberculosis recurrence through its effects on the immunological and barrier functions of the airways. In this cross-sectional study, the association between current tobacco smoking and retreatment tuberculosis... -
Tuberculosis complicating hepatitis C therapy with pegylated interferon and ribavirin: new infection in a high tuberculosis incidence area
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: T K Roestoff --- Department of Gastroenterology, Charlotte Maxeke Johannesburg Academic Hospital, T Burger --- Department of Gastroenterology, Charlotte Maxeke Johannesburg Academic Hospital, H Smith --- Department of Gastroenterology, Charlotte Maxeke Johannesburg Academic Hospital, A D Mahomed --- Department of Gastroenterology, Charlotte Maxeke Johannesburg Academic Hospital, -
High prevalence of mupirocin resistance associated with resistance to other antimicrobial agents in Staphylococcus aureus isolated from patients in private health care, Western Cape
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: E. Wasserman --- , H. Orth M. Senekal K. HarveyStaphylococcus aureus is an opportunistic pathogen which results in high morbidity and mortality. Decolonisation of the carriers by the intranasal administration of mupirocin is frequently prescribed in infection control practice. The aim of this study was to establish the prevalence... -
Discrepancies in the identification of methicillin-resistant Staphylococcus aureus and the absence of mecC in surveillance isolates in South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Ashika Singh-Moodley --- Center for Opportunistic, Tropical and Hospital Infections, National Institute for Communicable Diseases, a Division of the National Health Laboratory Service, South Africa Else Marais --- Center for Opportunistic, Tropical and Hospital Infections, National Institute for Communicable Diseases, a Division of the National Health Laboratory Service, South Africa Olga Perovic --- Center for Opportunistic, Tropical and Hospital Infections, National Institute for Communicable Diseases, a Division of the National Health Laboratory Service, South AfricaWe investigated instances of phenotypic and genotypic discrepancies in the identification of methicillin-resistant Staphylococcus aureus in a reference laboratory in South Africa. Organism identification and antimicrobial susceptibility testing were performed using automated systems; and, the detection of mecA, mecC and... -
A new species of Heterixalus (Amphibia: Hyperoliidae) from western Madagascar
Item type: Journal Article • Journal: African Zoology • Authors: Miguel Vences --- Zoologisches Forschungsinstitut und Museum A. Koenig, Germany Frank Glaw --- Acquario di Genova, Italy Riccardo Jesu --- Acquario di Genova, Area Porto Antico, Italy Giovanni Schimmenti --- Acquario di Genova, Area Porto Antico, ItalyA new species of hyperoliid frog, Heterixalus carbonei n.sp., is described from the Antsingy forest inwestern Madagascar. It is characterized by an advertisement call consisting of long and regular note series. The only other Heterixalus with a similar call structure,... -
Potential distributions of the medium- to large-sized mammals in the Cape Floristic Region, based on historical accounts and habitat requirements>
Item type: Journal Article • Journal: African Zoology • Authors: A.F. Boshoff --- Terrestrial Ecology Research Unit, Department of Zoology, South Africa L.J. Kerley --- Terrestrial Ecology Research Unit, Department of Zoology, South AfricaConservation planning in the Cape Floristic Region, a recognized world plant diversity hotspot, required systematic (i.e. presence/absence) information on the estimated distributions of the medium- to large-sized mammals. A pragmatic approach for obtaining distribution estimates, for the period prior to... -
Geographical distribution and habitats of the freshwater snail Bulinus reticulatus and its susceptibility to Schistosoma haematobium miracidia under experimental conditions
Item type: Journal Article • Journal: African Zoology • Authors: Kenné N. de Kock [AN0001] Corrie T. Wolmarans --- School of Environmental Sciences and Development, Zoology, South Africa Hylton D. Strauss --- School of Environmental Sciences and Development, Zoology, South Africa Madeleine Killian --- School of Environmental Sciences and Development, Zoology, South Africa Desireé C. Maree --- School of Environmental Sciences and Development, Zoology, South AfricaA brief account is given of the geographical distribution and habitats of Bulinus reticulatus as reflected by the 278 samples currently on record in the database of the National Freshwater Snail Collection, Potchefstroom University. The susceptibility of field specimens and... -
Estimation of the lion (Panthera leo) population in the southwestern Kgalagadi Transfrontier Park using a capture–recapture survey
Item type: Journal Article • Journal: African Zoology • Authors: J.G. Castley --- Conservation Services, South African National Parks, South Africa M.H. Knight --- Conservation Services, South African National Parks, South Africa M.G.L. Mills --- Conservation Services, South African National Parks, Endangered Wildlife Trust, and Mammal Research Institute, University of Pretoria, South Africa C. Thouless --- Department of Wildlife and National Parks, BotswanaA previous estimate of the lion (Panthera leo) population in the southwestern Kgalagadi Transfrontier Park (KTP) was made over 20 years ago. This together with increased fears regarding the viability of the population as a result of recent killings of... -
Juvenile survival and population regulation in southern elephant seals at Marion Island
Item type: Journal Article • Journal: African Zoology • Authors: P.A. Pistorius --- Mammal Research Institute, South Africa M.N. Bester --- Mammal Research Institute, South AfricaWe examined annual juvenile survival in southern elephant seals (Mirounga leonina) at Marion Island for the period 1994–1999 during which time the population was stable. Using mark–recapture models, we tested for age- and sex-specific differences in survival rates over the... -
Patterns of genetic heterogeneity in Neutraclinostomum intermedialis (Digenea: Clinostomatidae): geographical and temporal considerations
Item type: Journal Article • Journal: African Zoology • Authors: J.P Grobler [AN0001] N.M. Mokgalong --- School of Molecular and Life Sciences, South AfricaApproximately 300 individuals of Neutraclinostomum intermedialis from three localities in the Northern Province of South Africa were screened using allozyme electrophoresis. The aim was to determine genetic diversity and divergence within and between populations. The within population heterozygosity values (H... -
A new species of Eilica (Araneae: Gnaphosidae)
Item type: Journal Article • Journal: African Zoology • Authors: Moira J. FitzPatrick --- Natural History Museum, zimbabweEilica lotzi, a new species collected in Bloemfontein, South Africa, is described. This brings to four the number of species known from Africa. -
Phylogenetic relationships among members of the Pachydactylus capensis group of southern African geckos
Item type: Journal Article • Journal: African Zoology • Authors: Aaron M. Bauer --- Department of Biology, U.S.A. Trip Lamb --- Department of Biology, U.S.A.Phylogenetic relationships among members of the Pachydactylus capensis group of southern African geckos -
Structure and cytology of the testes of Labeo victorianus (Pisces: Cyprinidae)
Item type: Journal Article • Journal: African Zoology • Authors: Justus Rutaisire --- Department of Wildlife and Animal Resources Management, Uganda Ruth T. Muwazi --- Department of Wildlife and Animal Resources Management, Uganda Anthony J. Booth --- Department of Ichthyology and Fisheries Science, South AfricaTestes macromorphology and histomorphology together with sperm cytology are described for a potamodrometic cyprinid fish, Labeo victorianus, from Lake Victoria. Testes were found to be paired and elongate, suspended by a mesorchium on either side of the swim bladder. A... -
Distribution of veld rat sibling species Aethomys chrysophilus and Aethomys ineptus (Rodentia: Muridae) in southern Africa
Item type: Journal Article • Journal: African Zoology • Authors: A.V. Linzey --- Department of Biology, U.S.A. M.H. Kesner --- Department of Biology, U.S.A. C.T. Chimimba --- Department of Zoology and Entomology, South Africa C. Newbery --- Kgaswane Mountain Reserve, South AfricaSibling species Aethomys chrysophilus (de Winton) and Aethomys ineptus Thomas and Wroughton are indistinguishable in external morphology. Although their combined geographic range extends over a large area of southern Africa, their respective distributions are uncertain. We have assembled a database... -
Species richness, endemicity and distribution patterns of South African sea anemones (Cnidaria: Actiniaria & Corallimorpharia)
Item type: Journal Article • Journal: African Zoology • Authors: Fabian H. Acuña --- Departamento de Ciencias Marinas, Argentina Charles L. Griffiths --- Marine Biology Research Institute, South AfricaA revised and updated list of South African sea anemones is compiled and the distribution pattern and endemicity of each determined from museum and literature records. Forty nine valid species are recognized. Species richness appears fairly uniform around the coast,... -
Diets of Cape clawless otters at two South African coastal localities
Item type: Journal Article • Journal: African Zoology • Authors: W. Emmerson --- Department of Zoology, South Africa S. Philip --- Department of Zoology, South AfricaThe diet of the Cape clawless otter Aonyx capensis was investigated at the Dwessa Nature Re serve and Mkambati Nature Reserve on the Wild Coast, Eastern Cape Province, South Africa. Their diet was more varied at Mkambati (15 prey species)... -
Distribution and status of the hippopotamids in the Ivory Coast
Item type: Journal Article • Journal: African Zoology • Authors: Harald H. Roth --- , Zimbabwe Bernd Hoppe-Dominik --- , Germany Michael Mühlenberg --- v. Siebold Str. 2, Zentrum för Naturschutz der Universität Güttingen, Germany Bernd Steinhauer-Burkart --- , Germany Frauke Fischer --- , GermanyThe distribution and relative abundance of the common hippo (Hippopotamus amphibius) and the pygmy hippo (Hexaprotodon liberiensis) was studied in the Ivory Coast between 1978 and 1986 by questionnaire survey, interviews, local field investigations and aerial censuses. In addition, the... -
The distribution of two medically and agriculturally important cryptic rodent species, Mastomys natalensis and M. coucha (Rodentia: Muridae) in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: F.P. Venturi --- Department of Zoology and Entomology, South Africa C.T. Chimimba --- Department of Zoology and Entomology, South Africa R.J. van Aarde --- Department of Zoology and Entomology, South Africa N. Fairall --- Department of Zoology and Entomology, South AfricaThe medically and agriculturally important Natal multimammate mouse, Mastomys natalensis (A. Smith, 1834) and the multimammate mouse, M. coucha (A. Smith, 1836), are sibling species and cannot easily be distinguished morphologically. As a consequence, their respective distributional ranges across South... -
Long-term trends in the shore fishery of the Transkei coast, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: P. Pradervand --- Oceanographic Research Institute, South AfricaTwenty four years (1977 2000) of competition shore angling catch and effort data from the Natal Coastal Anglers Union for the Transkei were analysed. Of a total of 71 species recorded, the most commonly caught species were Pomatomus saltatrix (19%),... -
Sexual dimorphism in the African legless skink subfamily Acontiinae (Reptilia: Scincidae)
Item type: Journal Article • Journal: African Zoology • Authors: N.J.L. Heideman --- Department of Zoology and Entomology, South Africa S.R. Daniels --- Department of Botany and Zoology, South Africa P.L. Mashinini --- Department of Zoology and Entomology, South Africa M.E. Mokone --- Department of Zoology and Entomology, South Africa M.L. Thibedi --- Department of Zoology and Entomology, South Africa M.G.J. Hendricke --- Department of Biodiversity and Conservation Biology, South Africa B.A. Wilson --- Western Cape Education Department, South Africa R.M. Douglas --- National Museum, South AfricaThe extent to which sexual dimorphism in snout–vent length, tail length and head shape (length, width and height) manifests itself in the legless fossorial skink subfamily Acontiinae was investigated in representatives of all four of its genera, Acontias, Microacontias, Acontophiops... -
Symbionts of comatulid crinoids in False Bay, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Tessa N. Hempson --- Marine Biology Research Centre and Department of Zoology, South Africa Charles L. Griffiths --- Marine Biology Research Centre and Department of Zoology, South AfricaThis study documents the fauna associated with two common comatulid crinoid species, Comanthus wahlbergi and Tropiometra carinata, in False Bay, South Africa, and describes the patterns of infestation of obligate associate species. A total of 11 invertebrate species was found... -
Diversification of prey capture techniques among the piscivores in Lake Tana’s (Ethiopia) Labeobarbus species flock (Cyprinidae)
Item type: Journal Article • Journal: African Zoology • Authors: Martin de Graaf --- Experimental Zoology Group, Wageningen, the Netherlands Gerco H. van de Weerd --- Experimental Zoology Group, Wageningen, the Netherlands Jan W.M. Osse --- Experimental Zoology Group, Wageningen, the Netherlands Ferdinand A. Sibbing --- Experimental Zoology Group, Wageningen, the NetherlandsLake Tana harbours the only known intact species flock of large cyprinid fishes (15 Labeobarbus spp.). One of the most curious aspects of this species flock is the large number (8) of piscivorous species. Cyprinids are not well designed for... -
Larval fish dynamics in the Nxaxo-Ngqusi Estuary Complex in the warm temperate–subtropical transition zone of South Africa
Item type: Journal Article • Journal: African Zoology • Authors: R.J. Wasserman --- Department of Zoology, U.S.A N.A. Strydom --- Department of Zoology, U.S.A T.H. Wooldridge --- Department of Zoology, U.S.AThe larval fish assemblage was investigated in the permanently open Nxaxo-Ngqusi Estuary Complex, situated in the subtropical–warm temperate biogeographic boundary zone of South Africa. Larval and early juvenile fishes were collected in summer and winter of 2007 and 2008 using... -
Chameleons on the move: survival and movement of the Cape dwarf chameleon, Bradypodion pumilum, within a fragmented urban habitat
Item type: Journal Article • Journal: African Zoology • Authors: Krystal A. Tolley --- Applied Biodiversity Research Division, South African National Biodiversity Institute, South Africa Robert N.V. Raw --- Applied Biodiversity Research Division, South African National Biodiversity Institute, South Africa Res Altwegg --- Applied Biodiversity Research Division, South African National Biodiversity Institute, South Africa John G. Measey --- Applied Biodiversity Research Division, South African National Biodiversity Institute, South AfricaReptiles have an amazing diversity of life-history attributes ranging from the shortest- to longest-lived of vertebrate species. Estimating survival in wild populations is of key importance when understanding population dynamics and life-history evolution. However, data are lacking for a large... -
Phylogeography of the African common toad, Amietophrynus regularis, based on mitochondrial DNA sequences: inferences regarding the Cape Verde population and biogeographical patterns
Item type: Journal Article • Journal: African Zoology • Authors: R. Vasconcelos --- CIBIO UP, Centro de Investigação em Biodiversidade e Recursos Genéticos, Portugal E. Froufe --- CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Portugal J.C Brito --- CIBIO UP, Centro de Investigação em Biodiversidade e Recursos Genéticos, Portugal S. Carranza --- Institute of Evolutionary Biology (CSIC UPF), Passeig Marítim de la Barceloneta, Spain D.J. Harris --- CIBIO UP, Centro de Investigação em Biodiversidade e Recursos Genéticos, PortugalThe amphibian Amietophrynus regularis is distributed throughout equatorial Africa, with presumed introduced populations in the Cape Verde archipelago. Portions of the 12S and 16S rRNA mitochondrial regions of 30 specimens from Kenya, Uganda, Niger, Mali, Burkina-Faso, Ghana, Guinea-Bissau and Cape... -
Adult African sharptooth catfish, Clarias gariepinus, population dynamics in a small invaded warm-temperate impoundment
Item type: Journal Article • Journal: African Zoology • Authors: Anthony J. Booth --- Department of Ichthyology and Fisheries Science, South Africa Graham R.L. Traasg --- Department of Ichthyology and Fisheries Science, South Africa Olaf L.F. Weyl [AN0002]African sharptooth catfish, Clarias gariepinus, is a successful aquatic invader as it has a eurytopic physiology, is highly fecund, grows quickly and has an omnivorous diet. Despite possible threats that include predation of and competition with indigenous species, habitat degradation,... -
Hotel quality in the European Capital of Culture: Leeuwarden 2018
Item type: Journal Article • Journal: • Authors: Sjoerd Gehrels --- Stenden Academy of International Hospitality Research, Leeuwarden, The Netherlands Thomas Landen --- Revinate, Amsterdam, The NetherlandsThis research looks into the experience as perceived in 2014 by hotel guests in 15 bigger Dutch cities. The hotel reviews of Leeuwarden (Capital of Culture 2018) are compared to those of hotels in the other cities to provide an initial... -
South African consumers’ selection criteria for ornamental plants: a market perspective
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Lorraine Middleton --- Department of Biology, South AfricaThe considerations of South African consumers in the ornamental plant sector can be interpreted as selection criteria and be used as a marketing tool to increase the use of indigenous plants for ornamental purposes locally. A countrywide survey was undertaken... -
Antioxidant content and phytochemical properties of apple ‘Granny Smith’ at different harvest times
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Asanda Mditshwa --- Postharvest Technology Research Laboratory, South African Research Chair in Postharvest Technology, Department of Horticultural Sciences, Faculty of AgriSciences, South Africa Filicity Vries --- Agricultural Research Council Infruitec-Nietvoorbij, South Africa Kobus van der Merwe --- Agricultural Research Council Infruitec-Nietvoorbij, South Africa Elke Crouch --- Department of Horticultural Sciences, Faculty of AgriSciences, South Africa Umezuruike Linus Opara --- Postharvest Technology Research Laboratory, South African Research Chair in Postharvest Technology, Department of Horticultural Sciences, Faculty of AgriSciences, South AfricaUnderstanding the biochemical composition of fruit to be stored could be used as a tool for planning postharvest management to maintain quality and reduce losses of fresh fruit. This study evaluated the effects of harvesting fruit seven days before (H1)... -
Saliva fractions from South African Russian wheat aphid biotypes induce differential defence responses in wheat
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Lintle Mohase --- Department of Plant Sciences, South Africa Bernice Taiwe --- Glen Agricultural College, South AfricaThe Russian wheat aphid (RWA), Diuraphis noxia (Kurdjomov, 1913), is a notorious pest that reduces yield in wheat. Nevertheless, the source of eliciting activity during RWA–wheat interaction has not been established. This paper reports on the isolation of eliciting activity... -
Staphylococcus aureus bacteraemia in children: a formidable foe
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: T Pretorius --- Department of Anaesthesia, South Africa B Brennan --- Department of Anaesthesia, South Africa J Thomas --- Department of Anaesthesia, South AfricaStaphylococcus aureus remains one of the most common causes of bacteraemia in children. In order to evade and overcome the immune responses of its host and any antimicrobial therapies aimed at destroying it, this organism, through various mechanisms, continues to... -
Temporal and spatial dynamics of mineral levels of forage, soil and cattle blood serum in two semi-arid savannas of South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Alice F Gwelo --- Department of Livestock and Pasture, South Africa Solomon Tefera --- Department of Livestock and Pasture, South Africa Voster Muchenje --- Department of Livestock and Pasture, South AfricaIn this study, we examined temporal and spatial dynamics of minerals of forage, soil and cattle serum in two savannas (valley and plain) of South Africa. The aims were to explore the relationships between ecosystem components, and plan communal grazing... -
Carbon stocks in a 50‑year‑old Eucalyptus camaldulensis stand in Sicily, Italy
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Riccardo Scalenghe --- Dipartimento Scienze Agrarie e Forestali, Italy Luisella Celi --- Dipartimento di Scienze Agrarie, Forestali e Alimentari, Italy Giovanna Costa --- Dipartimento Scienze Agrarie e Forestali, Italy V Armando Laudicina --- Dipartimento Scienze Agrarie e Forestali, Italy Stefania Santoni --- Dipartimento di Scienze Agrarie, Forestali e Alimentari, Italy Dario Vespertino --- Dipartimento Scienze Agrarie e Forestali, Italy Tommaso La Mantia --- Dipartimento Scienze Agrarie e Forestali, ItalyEucalyptus stands in semi‑arid areas may contribute to enhance carbon (C) stocks in both biomass and soil. However, the limited information available is mainly focused on short‑rotation plantations. In this study, the above‑ and below‑ground C pools in five 50‑year‑old... -
Modelling dominant height growth in plantations of Pseudotsuga menziesii (Mirb.) Franco in Spain
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Carlos A López-Sánchez --- Instituto de Silvicultura e Industria de la Madera, México Juan G Álvarez-González --- Departamento de Ingeniería Agroforestal, Escuela Politécnica Superior, Spain Ulises Diéguez-Aranda --- Departamento de Ingeniería Agroforestal, Escuela Politécnica Superior, Spain Roque Rodríguez-Soalleiro --- Departamento de Producción Vegetal, Escuela Politécnica Superior, SpainA model for predicting dominant height growth and site index of Pseudotsuga menziesii (Mirb.) Franco in Spain was constructed. Data from stem analysis of 117 site trees were used. Four dynamic equations using the algebraic difference approach (ADA) and its... -
The influence of family characteristics on glycaemic control among adult patients with type 2 diabetes mellitus attending the general outpatient clinic, National Hospital, Abuja, Nigeria
Item type: Journal Article • Journal: South African Family Practice • Authors: Bethrand Brian Odume --- Department of Family Medicine, Nigeria Onyebuchi Stephanie Ofoegbu --- Department of Family Medicine, Nigeria Elias Chike Aniwada --- Department of Community Medicine, Nigeria Emeka Franklin Okechukwu --- United States Agency for International Development, USAID, NigeriaBackground: There is an increasing epidemic of diabetes worldwide with many patients not achieving set treatment targets. Family interventions in diabetes patient management, a proven adjunct, have not been fully integrated to patient care. -
A Profile of the East African Community
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Frederick Onyango Ogola --- Strathmore University Business School, Kenya George N. Njenga --- Strathmore University Business School, Kenya Peter C. Mhando --- The Pennsylvania State University, USA Moses N. Kiggundu --- Carleton University Sprott School of Business, CanadaRegional integration in East Africa dates back more than a hundred years. This article provides a general synopsis of the East African Community (EAC) and traces the evolution of regional integration in Eastern Africa from colonial times to the present... -
The role of waterbirds in the dispersal of freshwater cladocera and bryozoa in southern Africa
Item type: Journal Article • Journal: African Zoology • Authors: Chevonne Reynolds --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Graeme S Cumming --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South AfricaIt has long been presumed that waterbirds disperse the propagules of aquatic organisms. However, it is only in recent years that this claim has been empirically explored and little is still known about waterbird-mediated dispersal in southern Africa. Aquatic invertebrates... -
Long walk from volkekunde to anthropology: reflections on representing the human in South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: C.S. (Kees) van der Waal --- Department of Sociology and Social Anthropology, South AfricaThis paper stems from a seminar that the author gave at his retirement from the Department of Sociology and Social Anthropology at Stellenbosch University earlier in 2015. It details his long personal, political and intellectual journey from volkekunde to social... -
Frontiers of freedom: race, landscape and nationalism in the coastal cultures of South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Leslie Bank --- Fort Hare Institute of Social and Economic Research, South AfricaThe idea that whiteness is not a natural category but one which requires construction, maintenance and investment has provoked a rich scholarship, including in South Africa. The scholarship on whiteness in southern Africa has been marked, in particular, by a... -
Competing prayers: the making of a Nigerian urban landscape
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Ulrika Trovalla --- The Nordic Africa Institute, SwedenWhile Christians are seen as aspiring to make the Nigerian city of Jos into a Christian city, Muslims are believed to be trying to turn Jos into a Muslim city. There is a struggle over the urban landscape that is... -
Church rules? The lines of ordentlikheid among Stellenbosch Afrikaners
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Annika Teppo --- Nordic Africa Institute, SwedenEthnographic accounts of South African moral codes have mostly focused on so-called black and coloured areas, while the ideals and practices of white people have remained largely invisible and undiscussed. In the post-apartheid era, Afrikaners’ everyday religious practices as well... -
Bioaccumulation and distribution of organochlorine residues across the food web in Lagos Lagoon, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: B Akinsanya --- Department of Zoology, Nigeria R Alani --- Department of Chemistry, Nigeria UD Ukwa --- Department of Zoology, Nigeria F Bamidele --- Department of Zoology, Nigeria JK Saliu --- Department of Zoology, NigeriaEighteen organochlorine pesticide (OCP) residues were measured in the water, sediment, plankton, benthic invertebrates and fish in various sections of the Lagos Lagoon in 2014 to investigate their bioaccumulation and distribution in the food web. The analysis was done using... -
Three-dimensional visualisation of brooding behaviour in two distantly related brittle stars from South African waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Landschoff --- Department of Biological Sciences and Marine Research Institute, South Africa CL Griffiths --- Department of Biological Sciences and Marine Research Institute, South AfricaBrooding in ophiuroids (Echinodermata: Ophiuroidea) is a highly-developed reproduction strategy and has evolved independently several times. In South African waters, brooding occurs both in the very small amphiurid Amphipholis squamata, which is hermaphroditic, and in the large ophiodermatid Ophioderma wahlbergii,... -
Integrating indigenous knowledge into appropriate technology development and implementation
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Tharakan --- Department of Chemical Engineering, USAAppropriate Technology (AT) implementation should foster community empowerment and sustainability. Successful implementation requires community engagement throughout - technology conceptualization, development, implementation, assessment and impact evaluation. Development professionals should be sensitive to socio-cultural context and respect local knowledge, part of the... -
Ethics and extinction: Micro versus macro appropriate technology
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: C. Verharen --- Department of Philosophy, F. Bugarin --- African Studies Department, D. Schwartzman --- Department of Biology (ret.), J. Tharakan --- Department of Chemical Engineering, B. Gutema --- Department of Philosophy, Ethiopia J. Fortunak --- Department of Chemistry & Pharmaceutical Sciences, G. Middendorf --- Department of Biology, USAEthical theory and technology practice raise two primary questions. First, what are the ethical principles driving sustainable appropriate technology? Second, what are the viable applications of those principles with respect to alternative appropriate technologies? The hypothesis of this study is... -
Mindfulness: A foothold for Rogers's humanistic person-centred approach
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Julius Jooste --- Department of Sport, Rehabilitation and Dental Sciences, South Africa Ankebé Kruger --- Physical Activity, Sport and Recreation (PhASRec), South Africa Barend J. M. Steyn --- Department of Sport and Leisure Studies, South Africa David J. Edwards --- Department of Psychology, South AfricaThis article probed and contextualised the strong parallels between meditation derived mindfulness and Rogers's humanistic person-centred (PC) approach. This was done through a conceptual and evaluative literature review of the PC framework in relation to definitive descriptions of mindfulness. Elements... -
Experimental study of an optimised solar still type with two condensing compartments suitable for alcoholic distillation
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Siaka Touré --- Laboratoire d'Energie Solaire, Côte d'Ivoire Dobet Dago N'Drin --- Laboratoire d'Energie Solaire, Côte d'Ivoire Hassan Salami --- Laboratoire d'Energie Solaire, Côte d'Ivoire Modibo Sidibé --- Laboratoire d'Energie Solaire, Côte d'Ivoire Diakaridja Traoré --- Laboratoire d'Energie Solaire, Côte d'IvoireAn optimised solar still prototype suitable for alcoholic distillation was designed and tested. Its design is different from the single slope conventional solar still. It consists of two compartments which are in communication by a slit. One of the two... -
Measuring and reporting on energy poverty: insights from West African countries
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Emmanuel W. Ramde --- Department of Mechanical Engineering, Ghana Patrick Nussbaumer --- United Nations Industrial Development Organization (UNIDO), Austria Morgan Bazilian --- United Nations Industrial Development Organization (UNIDO), AustriaA reliable and comprehensive energy information base is required to set targets, design policies and programmes, as well as to enable citizens to make informed choices. Adequate national capacity to track progress towards universal modern energy access represents an especially... -
An approach to land capability evaluation for agriculture using remote sensing and GIS in Barberspan, North West Province of South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: T.H. Kabanda --- Department of Geography and Environmental Science, South AfricaTo guarantee food security, job creation and graduate small-scale farmers to commercial farmers, unproductive farms in the North West Province that have resulted from the land reform programme need to be restructured and evaluated for agricultural productivity. This study aimed... -
Space radiation environment of ALSAT-2 and its degradation effect on InGaP/InGaAs/Ge solar cells
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nadjima Benkara Mohammed --- Department of Sciences and Techniques, Faculty of Sciences and Technology, Algeria Souaad Benkara Mahammed --- Department of Electrical and Computer Engineering, Faculty of Engineering, MalaysiaSurrounding the earth, and throughout outer space, significant levels of radiation particles exist. These particles include protons, electrons, heavy ions, and other forms of radiation. Different regions are known to contain different amounts of various types of particles with different... -
The deterioration of production schedules during unforeseen disruptions
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: J.M. Ikome --- Department of Industrial Engineering, South Africa M.G. Kanakana --- Department of Industrial Engineering, South Africa S.P. Ayodeji --- Department of Industrial Engineering, South AfricaIn most real-world environments, production scheduling is an ongoing process where the presence of a variety of unforeseen disruptions is usually inevitable, and continually forces reconsideration and revision of pre-established schedules. Many of the approaches developed to solve the problem... -
Use of low cost pest exclusion nets can boost cabbage yield
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: J. Kiptoo --- Department of Biological Science, Kenya M. Kasina --- National Sericulture Research Center (KALRO), Kenya F. Wanjala --- Department of Biological Science, Kenya P. Kipyab --- Kenya Plant Health Inspectorate Service, Kenya L.A. Wasilwa --- Kenya Agricultural Research Institute, Kenya M. Ngouajio --- Michigan State University, USA T. Martin --- Cirad UR Hortsys, FranceIn this study, low-cost pest exclusion nets (lcPENs) were evaluated to determine their efficacy in reducing pest infestation and enhancing yields of cabbage at KALRO Kabete and PTC (Practical Training Centre) Thika, Kenya, from March to September 2011 both at... -
Identifying high-yielding dryland wheat cultivars for the summer rainfall area of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Ernest Dube --- Agricultural Research Council–Small Grain Institute, South Africa Rorisang Mare-Patose --- Agricultural Research Council–Small Grain Institute, South Africa Willem Kilian --- Agricultural Research Council–Small Grain Institute, South Africa Annelie Barnard --- Agricultural Research Council–Small Grain Institute, South Africa Toi J Tsilo --- Agricultural Research Council–Small Grain Institute, South AfricaDrought is a major challenge to dryland wheat (Triticum aestivum L.) production in the summer rainfall area (SRA) of South Africa. Dryland wheat farming in the SRA is unique in that the crop is dry-planted on high-water-table soils in winter,... -
Using independent nest survey data to validate changes in reporting rates of Martial Eagles between the Southern African Bird Atlas Project 1 and 2
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Arjun Amar --- DST–NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South Africa Daniël Cloete --- DST–NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South Africa Madel Whittington --- Birds of Prey Programme, Endangered Wildlife Trust, Nossob camp, South AfricaRepeat monitoring is vital to measure biodiversity change. However, monitoring protocols may change, as survey techniques improve or different questions are asked. Such modifications may cause difficulties when examining changes in wildlife populations. The Southern African Bird Atlas Project (SABAP)... -
Significant population of Egyptian Vulture Neophron percnopterus found in Morocco
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Mohamed Amezian --- Department of Biology, Faculty of Sciences, Morocco Rachid El Khamlichi --- Group for Research and Protection of Birds in Morocco (GREPOM/BirdLife Morocco), regional section of Tangier-Tétouan, MoroccoThe Egyptian Vulture Neophron percnopterus population in Morocco has undergone a marked decline since the 1980s to the point of nearing local extinction in the twenty-first century. A field study of some possible sites for Egyptian Vultures was carried out... -
Migration patterns of the Osprey Pandion haliaetus on the Eastern European–East African flyway
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ülo Väli --- Department of Zoology, Estonia Urmas Sellis --- Eagle Club, EstoniaWe analysed migration strategies of the Osprey Pandion haliaetus on the poorly studied Eastern European–East African flyway. Four adult birds were equipped with GPS-based satellite-transmitters or data-loggers in their breeding sites in Estonia (north-eastern Europe) and tracked to their wintering... -
Usurpation of a Crowned Lapwing Vanellus coronatus nest by African Wattled Lapwings V. senegalensis
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Nicholas PC Horrocks --- Department of Zoology, UKI report an instance of usurpation of a Crowned Lapwing Vanellus coronatus nest by a pair of African Wattled Lapwings Vanellus senegalensis. The nest, which originally contained a single Crowned Lapwing egg, eventually contained an additional three Wattled Lapwing eggs,... -
Strengthening Capacity for Agribusiness Development and Management in Sub-Saharan Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Suresh Chandra Babu --- Capacity Strengthening Program, USA Rupak Manvatkar --- World Food Programme, Italy Shashidhara Kolavalli --- Ghana Strategy Support Program, GhanaIn sub-Saharan Africa, agribusiness has a major role to play in the transformation of the agricultural sector. The demand for high-value food products is increasing, creating an opportunity for the production and export of these goods. To capture the benefits... -
Clinico-epidemiological spectrum of melioidosis: a 2-year prospective study in the western coastal region of India
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Sagar Chandrakar --- Department of Microbiology, India Meena Dias --- Department of Microbiology, IndiaObjective: To determine the geographical epidemiology, clinical presentations and risk factors associated with melioidosis. -
Factors influencing work readiness of graduates: An exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lindiwe Masole --- Industrial Psychology, South Africa Gideon van Dyk --- Industrial Psychology, South AfricaThis study aimed to determine the factors that influenced the work readiness of graduate and post-graduate social sciences students. An ex post facto design study was undertaken with 183 participant students from Makerere University, Uganda (n=73) and the University of... -
Young emerging adults’ graduateness and career adaptability: Exploring the moderating role of self-esteem
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sadika Ismail --- Department of Human Resource Management, Nadia Ferreira --- Department of Human Resource Management, Melinde Coetzee --- Department of Industrial & Organisational Psychology,This study investigated the moderating role of self-esteem on young emerging adults’ in their school-to-work transition phase of graduateness skills and career adaptability. A non-probability convenience sample (n=332) of undergraduate black (98.5%) and female (62%) young emerging adults (18–29 years)... -
HIV/AIDS among pastoralists and refugees in north-east Africa: a neglected problem
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mirgissa Kaba Serbessa --- School of Public Health, College of Health Sciences, Damen Haile Mariam --- School of Public Health, College of Health Sciences, Afework Kassa --- IGAD Regional HIV/AIDS Partnership Program-Programme Facilitation Office (IRAPP-PFO), Uganda Fathia Alwan --- Intergovernmental Authority for Development (IGAD) Secretariat, Djibouti Helmut Kloos --- Department of Epidemiology and Biostatistics, USAThe eight member states (Djibouti, Eritrea, Ethiopia, Kenya, Somalia, South Sudan, Sudan and Uganda) of the Intergovernmental Authority for Development (IGAD) have the largest proportions of cross-border mobile pastoralists and refugees in Africa. Although all IGAD countries have had national... -
Marcusenius desertus sp. nov. (Teleostei: Mormyridae), a mormyrid fish from the Namib desert
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LB Kramer --- Zoological Institute, Germany FH van der Bank --- African Centre for DNA Barcoding, Department of Zoology, South Africa M Wink --- Institute of Pharmacy and Molecular Biotechnology, GermanyWe critically compared Marcusenius specimens from the mouth of the Cunene River on the Namibia/Angola border, a harsh desert environment on the Atlantic Ocean coast virtually devoid of aerial insects with aquatic larvae which are an important food item, with... -
Studying the Logone floodplain, Cameroon, as a coupled human and natural system
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Moritz --- Department of Anthropology, USA S Laborde --- Department of Anthropology, USA SC Phang --- Department of Evolution, Ecology, and Organismal Biology, USA M Ahmadou --- University of Maroua, Cameroon M Durand --- Byrd Polar Research Center, USA A Fernandez --- Byrd Polar Research Center, USA IM Hamilton --- Department of Evolution, Ecology, and Organismal Biology, USA S Kari --- Centre d'Appui a la Recherche et au Pastoralisme (CARPA), Cameroon B Mark --- Byrd Polar Research Center, USA P Scholte --- Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ), Cameroon N Xiao --- Department of Geography, USA R Ziebe --- University of Maroua, CameroonAfrican floodplains are an excellent example of coupled human–natural systems because they exhibit strong interactions among multiple social, ecological, and hydrological systems. The intra-annual and interannual variations in seasonal flooding have direct and indirect impacts on ecosystems and human lives... -
The familiar labyrinth: practicing urban disorientation in post-apartheid Cape Town
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Giovanni Spissu --- Department of Social Sciences, United KingdomIn this article, I discuss how urban disorientation can be used in ethnographic research as an investigative tool to explore the city. In particular, I examine how urban disorientation can be taken as an ethnographic tactic with the purpose of... -
Thermal optimum: time, intimacy and the elemental in the first thousand days of life
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Fiona C. Ross --- Anthropology, School of African and Gender Studies, Anthropology and Linguistics, South Africa Nicholas Eppel --- Plumstead, South Africa“Thermal Optimum” is a collaboration between photographer Nicholas Eppel and anthropologist Fiona C. Ross. Focusing on pregnancy and early childhood, we sought a way to open questions about how the “hard facts” of biology are given force and presence through... -
Visual interruptions: a reflection on “Thermal optimum: time, intimacy and the elemental in the first thousand days of life”
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Kharnita Mohamed --- Department of Social Anthropology, School of African and Gender Studies, Anthropology and Linguistics, South AfricaIn this commentary, Kharnita Mohamed critically assesses Fiona C. Ross and Nicholas Eppel’s photo essay, “Thermal Optimum: Time, Intimacy and the Elemental in the First Thousand Days of Life.” The essay is published alongside this commentary. -
Pituitary apoplexy masquerading as meningitis
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: BJ Merwitz --- Carbohydrate and Lipid Metabolism Research Unit, Faculty of Health Sciences,, South Africa JM Zamparini --- Charlotte Maxeke Johannesburg Academic Hospital, South Africa FJ Raal --- Carbohydrate and Lipid Metabolism Research Unit, Faculty of Health Sciences,, South AfricaPituitary apoplexy is an uncommon condition and medical emergency that classically presents with abrupt onset of severe headache, nausea, fever, impaired level of consciousness, visual disturbances and a variable degree of ocular paresis. The constellation of signs, symptoms and cerebrospinal... -
Acute management of hyperlipaemic pancreatitis: a successful reduction in triglyceride levels with simultaneous insulin infusion and plasma exchange
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: A Korb --- Specialist Physician in Private Practice, South Africa PH Sonnekus --- Specialist Physician in Private Practice, South Africa JD Botha --- Specialist Physician in Private Practice, South AfricaWe report on a case in which a combination of an insulin infusion and plasma exchange were successfully used in the acute management of hyperlipaemic pancreatitis. -
Improvement noted after a multifaceted approach to diabetes mellitus management
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: S Pillay --- Department of Internal Medicine, South Africa C Aldous --- School of Clinical Medicine, University of KwaZulu-Natal, South Africa F Mahomed --- Department of Internal Medicine, South AfricaBackground: Optimal control of diabetes mellitus remains elusive, especially in developing countries. A comprehensive and standardised approach, coupled with intensive patient and clinician education, may provide the solution. -
Early insulin therapy in patients with type 2 diabetes mellitus
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: MLI Mashitisho --- Department of Internal Medicine, South Africa BG Mashitisho --- Department of Internal Medicine, South AfricaType 2 diabetes mellitus (T2DM) is a progressive disease characterised by beta cell dysfunction and insulin resistance. Beta cell dysfunction progresses to beta cell failure. Many patients with T2DM are managed with oral agents until complications develop. ‘Clinical inertia’ in... -
Intraoperative fluid therapy in neonates
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: AR Visram --- Barts Health NHS Trust, UKThe evidence base for the administration of intraoperative fluids in neonates is poor and extrapolated from adults and children. Differences from adults and children in physiology and anatomy of neonates inform our practice. -
Kounis syndrome: a narrative review
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Petrus Fourie --- Department of Anaesthesiology and Critical Care, South AfricaInflammatory mediators released from activated mast cells and basophils during hypersensitivity reactions have direct pathological effects on the myocardium and coronary vasculature. It was traditionally thought that cardiovascular signs and symptoms in anaphylaxis are largely due to peripheral vasodilation and... -
Characteristics of roost cavities used by Lilian's Lovebird Agapornis lilianae in Liwonde National Park, Malawi
Item type: Journal Article • Journal: African Zoology • Authors: Tiwonge I Mzumara --- Research Centre for African Parrot Conservation, School of Life Sciences, South Africa Michael R Perrin --- Research Centre for African Parrot Conservation, School of Life Sciences, South Africa Colleen T Downs --- Research Centre for African Parrot Conservation, School of Life Sciences, South AfricaLilian's Lovebird Agapornis lilianae is a non-excavating cavity user of mopane Colophospermum mopane woodlands. We investigated roost characteristics of Lilian's Lovebirds in Liwonde National Park, Malawi. We quantified tree and roost site variables for roost and non-roost trees. Sixty-six roosts... -
Characterisation of the dietary relationships of two sympatric hake species, Merluccius capensis and M. paradoxus, in the northern Benguela region using fatty acid profiles
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JA Iitembu --- Department of Fisheries and Aquatic Sciences, Namibia NB Richoux --- Department of Zoology and Entomology, South AfricaThe two sympatric species of Cape hake, Merluccius capensis and M. paradoxus, have been the main targets of bottom-trawl fisheries off Namibia for several decades. The feeding ecology of these hakes has been studied mainly using stomach content analyses and... -
Spatial characterisation of the Benguela ecosystem for ecosystem-based management
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SP Kirkman --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa L Blamey --- Marine Research Institute, South Africa T Lamont --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa JG Field --- Marine Research Institute, South Africa G Bianchi --- Food and Agriculture Organization, Italy JA Huggett --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa L Hutchings --- Marine Research Institute, South Africa J Jackson-Veitch --- Marine Research Institute, South Africa A Jarre --- Marine Research Institute, South Africa C Lett --- Institut de Recherche pour le Développement [IRD], UMR MARBEC 248, France MR Lipiński --- Department of Ichthyology and Fisheries Science, South Africa SW Mafwila --- Department of Fisheries and Aquatic Sciences, Namibia MC Pfaff --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa T Samaai --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa LJ Shannon --- Marine Research Institute, South Africa Y-J Shin --- Marine Research Institute, South Africa CD van der Lingen --- Marine Research Institute, South Africa D Yemane --- Marine Research Institute, South AfricaThe three countries of the Benguela Current Large Marine Ecosystem (BCLME), namely Angola, Namibia and South Africa, have committed to implementing ecosystem-based management (EBM) including an ecosystem approach to fisheries (EAF) in the region, to put in practice the principles... -
Does social capital really determine poverty? Evidence from a Cameroon household survey
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Johannes Tabi Atemnkeng --- Department of Economics and Management, Cameroon Andrew Wujung Vukenkeng --- Department of Economics, CameroonThis paper examines the effect of social capital on household poverty using the 2007 Cameroon household survey. A social capital indicator is constructed using the polychoric principal components analysis method and econometric approaches are employed to correct for potential endogeneity... -
Sustainable tourism development and the world heritage status of the Wadden Sea: The case of Terschelling
Item type: Journal Article • Journal: • Authors: Akke Folmer --- Research Group Marine Wetlands Studies, Stenden University of Applied Sciences, Leeuwarden, The Netherlands Hans Revier --- Research Group Marine Wetlands Studies, Stenden University of Applied Sciences, Leeuwarden, The Netherlands Tamara Cupido --- Research Group Marine Wetlands Studies, Stenden University of Applied Sciences, Leeuwarden, The NetherlandsNational governments and regions make great efforts to obtain international recognition for their natural heritage, for instance through UNESCO’s World Heritage Sites list. Since June 2009, the Dutch Wadden Sea has been on the World Heritage List. Our study investigates... -
The power of research in finance to enhance sustainability – Applied to practice
Item type: Journal Article • Journal: • Authors: Gernot Peichl --- Hilton Tallinn Park, Accounting and Finance Department, Tallinn, EstoniaMany people think of research in the hospitality industry as being difficult to relate to practice. This paper shows not only how theory can be applied to practice, but also how practice is related to theory with regard to concepts... -
Multiple cardiovascular disease risk factors in rural Kenya: evidence from a health and demographic surveillance system using the WHO STEP-wise approach to chronic disease risk factor surveillance
Item type: Journal Article • Journal: South African Family Practice • Authors: PM Chege --- Department of Family Medicine, KenyaBackground: To describe the distribution of obesity, hypertension, dysglycaemia and dyslipidaemia (which are risk factors for cardiovascular disease) using a Health and Demographic Surveillance System (HDSS) site in western Kenya. -
Profile and management of the firework-injured hand
Item type: Journal Article • Journal: South African Family Practice • Authors: T Pilling --- Department of Occupational Therapy, South Africa P Govender (née Naidoo) --- Discipline of Occupational Therapy, South AfricaBackground: Numerous studies internationally highlight the devastating effects of firework-related injuries and the costs involved in treating these injuries, in addition to the calls to alter legislation to prevent these injuries from occurring. There has, however, been a paucity of... -
A case report of primary psammomatous serous adenocarcinoma of the peritoneum
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Purwa R Patil --- Department of Pathology, India Bhavana M Bharambe --- Department of Pathology, India Aditi H Mahure --- Department of Pathology, India Madhumita D Kurdukar --- Department of Pathology, India Amruta A Patil --- Department of Pathology, India Kalpana A Deshpande --- Department of Pathology, IndiaExtraovarian peritoneal serous papillary carcinoma is an uncommon malignant tumour characterised by peritoneal involvement with ascites, which is similar to ovarian serous papillary carcinoma histologically. Our case involved only the surface and superficial cortex of the ovaries, with peritoneal involvement,... -
Palliative chemotherapy in recurrent carcinoma cervix: experience from a regional cancer centre in southern India
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Ravikiran Bonanthaya --- Department of Radiation Oncology, India KC Lakshmaiah --- Department of Medical Oncology, India Suresh Babu --- Department of Medical Oncology, India D Lokanatha --- Department of Medical Oncology, IndiaAims: To evaluate the clinical outcome and complications with two different palliative chemotherapy regimens in recurrent cervical carcinoma. -
Lymphovascular space invasion in early-stage endometrial cancer: adjuvant treatment and patterns of recurrence
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Esther van Barneveld --- Department of Obstetrics and Gynaecology, The Netherlands David G Allen --- Department of Obstetrics and Gynaecology, Australia Ruud LM Bekkers --- Department of Obstetrics and Gynaecology, The Netherlands Peter T Grant --- Department of Obstetrics and Gynaecology, AustraliaBackground: In early-stage endometrial cancer, lymphovascular space invasion (LVSI) is an independent predictor of relapse of disease and poorer survival. Nevertheless, adjuvant treatment for LVSI-positive patients is variable. -
Retrospective comparison of cytological and histological bone marrow morphology in adult antiretroviral-naïve and antiretroviral experienced human immunodeficiency virus-infected patients with peripheral blood cytopaenias
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Suraya Naidoo --- Department of Haematology, South Africa Vincent Louis Naicker --- National Health Laboratory Services, South AfricaBackground: A cohort of human immunodeficiency virus (HIV)-positive patients presenting to a quaternary hospital in KwaZulu-Natal, South Africa over a period of one year was identified and morphological analyses of their bone marrow aspirates and trephine biopsies (BMAT) undertaken. -
Claiming Cape Town: towards a symbolic interpretation of Khoisan activism and land claims
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Rafael Verbuyst --- African Studies Centre Leiden, The NetherlandsCurrent political negotiations in South Africa which explore the possibility of pre-1913 land claims and the recognition of Khoisan traditional authorities have spurred the growth of the “Khoisan revival”: the phenomenon of people identifying as Khoisan and asserting indigenous rights... -
Nostalgia in the post-apartheid state
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Amber R. Reed --- Anthropology and Africana Studies Departments, USAIn this article, I join recent theorists in furthering an “anthropology of nostalgia,” seeking connections between disparate parts of the globe through a shared sense of loss in the face of global capitalism and liberal democracy. Highlighting contemporary work, I... -
Indexing immunity to malaria in South Africa in the 1920s and 1930s
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Randall Packard --- Institute of the History of Medicine, United States of AmericaDuring the 1920s and 1930s, medical authorities, municipal officials and employers of African farm labour in the lowveld regions of the former Transvaal constructed a system for classifying Africans in terms of their susceptibility or resistance to malaria. This classification... -
Mutual fund performance: a market efficiency perspective
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Tim Verheyden --- Arabesque Asset Management Ltd, United Kingdom Lieven De Moor --- Faculty of Economic and Social Sciences and Solvay Business School, Belgium Rosanne Vanpée --- Faculty of Economics and Business, KU Leuven Campus Brussel, BelgiumThis study reconciles existing literature on stock market efficiency and mutual fund performance by developing a framework to test whether fund managers are able to exploit market inefficiencies. We find a positive relationship between alpha and weak-form market efficiency. Most... -
Escapism motive for sport consumption as a predictor of meaning in life
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Frederick W. Stander --- Optentia Research Focus Area, South AfricaThe objective of this study was to examine whether spectator escapism motive for sport consumption could predict meaning in life, and to explore the role of psychological ownership in this relationship. A sample of 806 football spectators (African = 85%,... -
Vicarious trauma: The psychological impact of working with survivors of trauma for South African psychologists
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xin-Cheng Sui --- Department of Psychology, South Africa Anita Padmanabhanunni --- Department of Psychology, South AfricaTraumatic events are highly prevalent in South African society and psychologists who work with survivors of trauma have been identified as particularly at risk of being adversely affected by their work, and experiencing vicarious trauma. This study aimed to explore... -
Therapist experiences of equine-assisted psychotherapy in South Africa: A qualitative study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lucinda Johns --- School of Applied Human Sciences, Shaida Bobat --- School of Applied Human Sciences, Juanita Holder --- School of Applied Human Sciences,This study examined therapists’ perceptions and experiences of equine-assisted psychotherapy (EAP). Participants were 14 practising EAP therapists (females = 86%; male = 14%; age range 20 to 69 years) from across South Africa. They were interviewed utilising electronic interview media... -
An exploration of the Self-Appraisal Questionnaire for assessing female recidivism in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- Department of Criminology,This study profiled incarcerated female offenders’ criminogenic-oriented self-appraisals. Respondents were 77 female offenders between the ages of 20 and 56 years, serving custodial sentences within the South African Department of Correctional Services ranging from under a year to 25 years,... -
Economic evaluation of water loss saving due to the biological control of water hyacinth at New Year’s Dam, Eastern Cape province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GCG Fraser --- Department of Economics and Economic History, South Africa MP Hill --- Department of Zoology and Entomology, South Africa JA Martin --- Department of Economics and Economic History, South AfricaWater hyacinth Eichhornia crassipes is considered the most damaging aquatic weed in the world. However, few studies have quantified the impact of this weed economically and ecologically, and even fewer studies have quantified the benefits of its control. This paper... -
Nile perch and the transformation of Lake Victoria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Taabu-Munyaho --- National Fisheries Resources Research Institute (NaFIRRI), Uganda BE Marshall --- Lake Victoria Fisheries Organisation (LVFO), New Zealand T Tomasson --- United Nations University – Fisheries Training Programme (UNU–FTP), Marine Research Institute, Iceland G Marteinsdottir --- Institute of Biology, IcelandThe transformation of Lake Victoria that began in 1980 followed the population explosion of Nile perch Lates niloticus, causing the apparent extirpation of 500+ endemic haplochromine species and dramatic physico-chemical changes. Officially introduced in 1962–1963, but present earlier, the reasons... -
Cocoa and chocolate consumption – Are there aphrodisiac and other benefits for human health?
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Eo. Afoakwa --- Centre for Food Quality, Strathclyde Institute for Pharmacy and Biomedical Sciences, United KingdomAbstract -
Socio-demographic profiles and anthropometric status of 0- to 71-month-old children and their caregivers in rural districts of the Eastern Cape and KwaZulu-Natal provinces of South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Cm. Smuts --- Nutritional Intervention Research Unit, M. Faber --- Nutritional Intervention Research Unit, Se. Schoeman --- Nutritional Intervention Research Unit, Ja. Laubscher --- Biostatics Unit, A. Oelofse --- Centre for Nutrition, Ajs. Benadé --- Cape Peninsula University of Technology, Ma. Dhansay --- Nutritional Intervention Research Unit,Abstract -
The development of a preliminary regression equation for estimating the weight of black South African paraplegic males using anthropometric measurements in Tshwane, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: H. Snyman --- Association for Dietetics in South Africa, Mg. Herselman --- Division of Human Nutrition, D. Labadarios --- Division of Human Nutrition,Abstract -
Socio-demographic risk factors for HIV infection in women living in Mangaung, Free State
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Z Hattingh [AN0001] C Walsh --- Department of Nutrition and Dietetics, South Africa G Joubert --- Department of Biostatistics, South AfricaObjective: To determine socio-demographic risk factors associated with HIV infection in women in Mangaung. -
Adverse social, nutrition and health conditions in rural districts of the KwaZulu-Natal and Eastern Cape provinces, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: S. Schoeman --- Nutritional Intervention Research Unit, South Africa M. Faber --- Nutritional Intervention Research Unit, South Africa V. Adams --- Currently from Scifest, South Africa C. Smuts --- School for Physiology, Nutrition and Consumer Science, Potchefstroom N. Ford-Ngomane --- Health Systems Trust, South Africa J. Laubscher --- Biostatistics Unit, South Africa M. Dhansay --- Currently from Executive Research Directorate, South AfricaObjective: This study determined the socio-demographic, nutritional and health status of children and their caregivers in two rural districts in KwaZulu-Natal (KZN) and one rural district in the Eastern Cape (EC), South Africa. -
Nutrition in paediatric Crohn’s disease
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: O. Goulet --- Department of Pediatric Gastroenterology, Hepatology and Nutrition, FranceInflammatory bowel disease (IBD) such as Crohn’s disease (CD) results from the interaction between an individual’s immune response and precipitant environmental factors, which generate an anomalous chronic inflammatory response in those who are genetically predisposed. Protein-energy malnutrition (PEM) is a... -
Obstructive sleep apnoea and obesity
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Gr. Tintinger --- Department of Internal Medicine, Steve Biko Academic Hospital, Pretoria L. Pretorius --- Medical Research Council Unit for Inflammation and Immunity, Department of Immunology, D. Labadarios --- Human Sciences Research Council, Population Health, Cape TownThe global obesity epidemic continues to gain momentum, and South Africa is one of those countries with an extremely high prevalence of obesity. The reported association between obstructive sleep apnoea (OSA) and obesity has resulted in a parallel increase in... -
Immunonutrition: a South African perspective
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: A. Prins --- Little Company of Mary Medical Centre, J. Visser --- Division of Human Nutrition, Faculty of Medicine and Health Sciences,Clinical nutrition has evolved from providing nutrients to meet the patient’s needs to nutrition therapy that additionally aims to provide specific nutrients, or combinations thereof, which can reduce infection and improve outcomes in critically ill patients. The value of immunonutrition... -
Nutrition management in the adult patient with Crohn’s disease
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: A. Basson --- Lecturer and Hospital Student Internship Supervisor,Malnutrition, nutrient deficiencies and osteoporosis are common in patients with Crohn’s disease, regardless of disease activity. While the role of diet in the pathogenesis of the disease remains inconclusive, upon diagnosis, nutrition therapy plays an integral role in patient care... -
The influence of socio-demographic factors on the nutritional status of children in the Stellenbosch area, Western Cape
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Ap Kirsten --- Division of Human Nutrition, D Marais --- Division of Applied Health Sciences, C Schübl --- Division of Human Nutrition, Faculty of Medicine and Health Sciences,Objectives: To determine the prevalence of overweight and obesity, as well as socio-demographic risk factors associated with childhood overweight and obesity in the Stellenbosch area, Western Cape province. -
When science meets culture: the prevention and management of erectile dysfunction in the 21st century
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Sm Kassier --- Discipline of Dietetics and Human Nutrition, Pietermaritzburg Fj Veldman --- Discipline of Dietetics and Human Nutrition, PietermaritzburgTraditionally, the term “impotence” has been used to signify a male’s inability to attain and maintain an erection.Impotence, in most circumstances, is more precisely referred to as erectile dysfunction (ED). An estimated 10-20 million men suffer from the condition.However, this... -
Nutritional management of encapsulating peritoneal sclerosis with intradialytic parenteral nutrition
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: J. Kriel --- Tygerberg Academic Hospita, N. Esau --- Tygerberg Academic Hospita, -
Traditional medicine use in surgical patients in a South African tertiary hospital
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: GD Nethathe --- Faculty of Health Sciences, South Africa T Matamba --- Chris Hani Baragwanath Academic Hospital, University of the Witwatersrand, South Africa J Malumalu --- Chris Hani Baragwanath Academic Hospital, University of the Witwatersrand, South Africa N Dladla --- Chris Hani Baragwanath Academic Hospital, University of the Witwatersrand, South Africa T Bayibayi --- Chris Hani Baragwanath Academic Hospital, University of the Witwatersrand, South Africa SL Russell --- Department of Anesthesia and Perioperative Medicine, CanadaBackground: The use of traditional medicine (TM) in South Africa is reportedly high. TM use in a South African surgical population presenting for elective surgery is unknown. -
Soil carbon dioxide effluxes from different vegetation environments in semi-arid Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Rebecca Zengeni --- Soil Sciences Department, South Africa Vincent Kakembo --- Department of Geosciences, South Africa Nsalambi Nkongolo --- Centre of Excellence for Geospatial Information Science, USAThough important, CO2 effluxes from non-agricultural ecosystems are poorly characterised. Given that thicket vegetation is prevalent in Eastern Cape, South Africa, we monitored soil CO2 effluxes from an intact thicket, degraded thicket (DT) and grassland (G) over 10 months, as... -
Further evidence that in African acacia, white is a warning colour to herbivores: the white pseudo-galls of Vachellia seyal
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Jeremy Midgley --- University of Cape Town, South Africa Huyam Altayeb --- University of Cape Town, South Africa Patrick Mbosso --- University of Yalounde 1, CameroonPseudo-galls of three East African acacia (Vachellia) species were compared to determine the correlates of gall colour and their potential defensive functions. Although all three species produce white thorns, the pseudo-galls of V. gerrardii and V. drepanolobium are dark coloured... -
Spatial metrics effect of forest fragmentation on forest bird abundance and site occupancy probability: the influence of patch size and isolation
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Robert B Modest --- Department of Wildlife Management, Tanzania Shombe N Hassan --- Department of Wildlife Management, Tanzania Alfan A Rija --- Department of Wildlife Management, TanzaniaThe persistence of species taxa within fragmented habitats is dependent on the source–sink metapopulation processes, and forest patch size and isolation are key factors. Unveiling species–patch area and/or species–patch isolation relationships may help provide crucial information for species and landscape... -
Cape Vulture Gyps coprotheres breeding status in southern Africa: monitoring results from 2010–2014
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kerri Wolter --- VulPro NPO, South Africa Walter Neser --- VulPro NPO, South Africa Margaret T Hirschauer --- VulPro NPO, South Africa Alvaro Camiña --- ACRENASL Environmental Consultants, SpainMonitoring of eight Cape Vulture Gyps coprotheres breeding colonies in South Africa and Botswana took place between 2010 and 2014 using standardised counting methods. Counts of breeding pairs, nestlings and fledglings were used to calculate breeding success and general population... -
Status of the population of Karamoja Apalis Apalis karamojae in north-eastern Uganda
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Dianah W Nalwanga --- NatureUganda, Uganda Michael Opige --- NatureUganda, Uganda Roger Q Skeen --- NatureUganda, UgandaThe distribution of the Karamoja Apalis Apalis karamojae, an East African endemic, has been sparsely documented in Uganda. In October 2011, a survey of the species was carried out near Iriiri in north-eastern Uganda. The main aim was to find... -
Seasonal elevational movements of Eastern Olive Sunbird
Cyanomitra olivacea in the Uluguru Mountains, TanzaniaItem type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Chacha Werema --- Department of Zoology and Wildlife Conservation, TanzaniaLittle is known about the seasonal elevational movements for most tropical avifauna species. Seasonal elevational movements of the Eastern Olive Sunbird Cyanomitra olivacea were studied along an elevational gradient from 600 to 1 500 m above sea level in the Uluguru... -
Common-wide information flow in CDS markets: The case of earnings surprises of industry leaders
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Paulo Pereira da Silva --- CMVM-Portuguese Securities Commission, Rua Laura Alves n.° 4, Lisbon, PortugalThis paper examines the way common-wide information is disseminated in credit default swap (CDS) markets. I find strong supporting evidence that earnings announcements of CDS references with greater liquidity and higher credit risk help in predicting the subsequent CDS spread... -
The asymmetric effects of financing deficits and surpluses on the pecking order theory in sub-Saharan Africa
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Chimwemwe Chipeta --- School of Economic and Business Sciences, South Africa Chera Deressa --- School of Business Studies, ZambiaThis paper is the first to examine the asymmetric effects of financing deficits and surpluses on the pecking order financing strategies in sub-Saharan Africa. Panel data estimation techniques are carried out on a sample of 564 non-financial firms for the... -
The use of glyphosate for the management of secondary coppice regrowth in a Eucalyptus grandis × E. urophylla coppice stand in Zululand, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Jonathan C Roberts --- School of Natural Resource Management, South Africa Keith M Little --- School of Natural Resource Management, South Africa Marnie E Light --- Institute for Commercial Forestry Research, South AfricaIn South Africa, commercial eucalypt stands may be regenerated through the stepwise reduction of coppice shoots following felling. The development of secondary coppice regrowth following these reduction operations results in competition with the remaining stems, possibly resulting in a reduction... -
Design of a hand water pump using a quick-return crank mechanism
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: C. A. Okoronkwo --- Department of Mechanical Engineering, Nigeria B. O. Ezurike --- Department of Mechanical Engineering, Nigeria R. Uche --- Department of Mechanical Engineering, Nigeria J. O. Igbokwe --- Department of Mechanical Engineering, Nigeria O. N. Oguoma --- Department of Mechanical Engineering, NigeriaThe detailed design procedure for a quick-return mechanism hand water pump is presented. The system designed is basically a modification to reciprocating lift pumps also known as India mark III. The modified pump is operated by the up and down... -
A brief overview of the ACEP project: Ecosystem Processes in the KwaZulu-Natal Bight
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ST Fennessy --- Oceanographic Research Institute, South Africa MJ Roberts --- Branch: Oceans and Coasts, South Africa AW Paterson --- South African Institute for Aquatic Biodiversity, South AfricaThis introductory paper lays the basis for this supplementary issue by briefly presenting the state of knowledge on the KwaZulu-Natal (KZN) Bight at the start of this multi-disciplinary, multi-institutional, ship-based research project that ran from 2009 to 2013. The rationale... -
Observations and mechanisms of upwelling in the northern KwaZulu-Natal Bight, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MJ Roberts --- Ocean Sciences and Marine Food Security, South Africa C Nieuwenhuys --- Bayworld Centre for Research and Education, South AfricaNew in situ time-series data were acquired by two ADCP moorings placed on the shelf off Richards Bay on the east coast of South Africa at depths of 25 m and 582 m between October 2009 and August 2010. The... -
The strength of Gunnera perpensa’s “evidence of traditional use”
Item type: Journal Article • Journal: South African Family Practice • Authors: Lehlohonolo J Mathibe --- Therapeutics and Medicines Management, Discipline of Pharmaceutical Sciences, South AfricaIn South Africa, and in several countries in the world, several traditional medicines are used often, although their pharmacology is not yet clear and the extent, if any, of their benefit is not scientifically documented. The Australian’s “Therapeutic Goods Administration”... -
Consent by children: considerations when assessing maturity and mental capacity
Item type: Journal Article • Journal: South African Family Practice • Authors: Y Havenga --- Adelaide Tambo School of Nursing Science, South Africa MA Temane --- Department of Nursing Science, South AfricaHealth care providers are required to know and apply legal, ethical and professional requirements when obtaining consent from children. Central to obtaining consent from children is the ability to assess and arrive at a clinical judgement about the child’s maturity... -
Black Jack: Do company benefits and feelings have an impact on my happiness?
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Rosa Naudé --- TREES (Tourism Research in Economic Environs and Society), South Africa Stefan Kruger --- TREES (Tourism Research in Economic Environs and Society), South Africa Melville Saayman --- TREES (Tourism Research in Economic Environs and Society), South Africa Cara Jonker --- School of Human Resource Sciences, South Africa Muzaffer Uysal --- TREES (Tourism Research in Economic Environs and Society), South AfricaThe aim of this study was to determine whether casino employees’ benefits and their feelings about the company influence their experienced happiness. A total of 1 502 casino employees were surveyed (females = 57%; males = 43%). They completed a... -
Degradation of paracetamol and other constituents in Perfalgan®
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Catherine Curran --- Department of Anaesthesia, South AfricaBackground: The manufacturers of Perfalgan®, a formulation of intravenous paracetamol, recommend that each ampoule be used once only. This is most likely due to concerns regarding degradation of paracetamol or other ingredients in the solution, and sterility issues. However, in... -
Heart rate variability predicts 30-day all-cause mortality in intensive care units
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: David G Bishop --- Perioperative Research Group, Pietermaritzburg Metropolitan Department of Anaesthetics, South Africa Robert D Wise --- Perioperative Research Group, Pietermaritzburg Metropolitan Department of Anaesthetics, South Africa Carolyn Lee --- Perioperative Research Group, Pietermaritzburg Metropolitan Department of Anaesthetics, South Africa Richard P von Rahden --- Perioperative Research Group, Pietermaritzburg Metropolitan Department of Anaesthetics, South Africa Reitze N Rodseth --- Perioperative Research Group, Pietermaritzburg Metropolitan Department of Anaesthetics, South AfricaBackground: Autonomic nervous function, as quantified by heart rate variability (HRV), has shown promise in predicting clinically important outcomes in the critical care setting; however, there is debate concerning its utility. HRV analysis was assessed as a practical tool for... -
Effects of rooting media on root growth and morphology of Brassica rapa seedlings
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Michael O Adu --- Department of Ecological Sciences, UK David O Yawson --- Department of Soil Science, School of Agriculture, College of Agriculture and Natural Sciences, Ghana Frederick A Armah --- Department of Environmental Science, School of Biological Science, College of Agriculture and Natural Sciences, Ghana Paul A Asare --- Department of Crop Science, School of Agriculture, College of Agriculture and Natural Resources, Ghana Malcolm J Bennett --- Plant and Crop Sciences Division, School of Biosciences, UK Martin R Broadley --- Plant and Crop Sciences Division, School of Biosciences, UK Philip J White --- Department of Ecological Sciences, UK Lionel X Dupuy --- Department of Ecological Sciences, UKRooting media used in current root phenotyping studies can have substantial effect. In this study, the effects of three different nutrient conducting papers (Black construction paper, Anchor blue germination paper and Kimpak paper) and soil-filled boxes on root growth and... -
Sorghum production systems and constraints, and coping strategies under drought-prone agro-ecologies of Ethiopia
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Beyene A Amelework --- African Centre for Crop Improvement, South Africa Hussein A Shimelis --- African Centre for Crop Improvement, South Africa Pangirayi Tongoona --- West African Centre for Crop Improvement, College of Basic and Applied Sciences, Ghana Fentahun Mengistu --- Ethiopian Institute of Agricultural Research, Ethiopia Mark D Laing --- African Centre for Crop Improvement, South Africa Dawit Getnet Ayele --- School of Mathematics, Statistics and Computer Science, South AfricaSorghum is one of the most important cereal crops worldwide after wheat, rice, maize and barley. Examining the present socio-economic conditions of sorghum-producing farmers in different agro-ecologies in Ethiopia is of importance for the design of improvement strategies. The objectives... -
Characteristics and outcome of surgically treated acromegaly patients attending an endocrinology clinic at a tertiary referral centre in Durban, South Africa over a period of 10 years
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Abdurraouf Masaud Elbueishi --- Department of Diabetes and Endocrinology, South Africa Fraser J Pirie --- Department of Diabetes and Endocrinology, South Africa Ayesha A Motala --- Department of Diabetes and Endocrinology, South AfricaBackground: The mode of presentation, clinical, radiologic and laboratory characteristics of patients with acromegaly and the outcome following various modalities of treatment are not well documented in South Africa. -
Water cytotoxicity and dioxins bioaccumulation in an Egyptian delta wetland ecosystem
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MM El-Shazly --- Department of Entomology, Faculty of Science, Egypt El Elzayat --- Department of Zoology, Faculty of Science, Egypt WA Omar --- Department of Zoology, Faculty of Science, Egypt IIA El-Sebeay --- Plant Protection Research Institute, Agricultural Research Center, Egypt YA Edmardash --- Department of Entomology, Faculty of Science, Egypt MM Soliman --- Department of Entomology, Faculty of Science, Egypt KM Abdel Rahman --- Department of Entomology, Faculty of Science, Egypt MS Ibrahim --- Department of Geography, Faculty of Arts, EgyptManzala Lake, as one of the main Egyptian wetland ecosystems, is facing risks of pollution. An in vitro cytotoxicity test using a mammalian cell line was employed to determine the toxicity of multiple pollutants in the water and Tilapia zillii... -
Antiretroviral adherence and virological outcomes in HIV-positive patients in Ugu district, KwaZulu-Natal province
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Germain Kapiamba --- Department of Health Studies, South Africa Thembekile Masango --- Department of Health Studies, South Africa Ditaba Mphuthi --- Department of Health Studies, South AfricaAdherence to antiretroviral therapy is crucial to ensure viral suppression. In the scientific community it is widely accepted that an adherence level of at least 90% is necessary to achieve viral suppression. This study uses pharmacy refill records to describe... -
Teachers’ subjectivities and emotionality in HIV/AIDS teaching
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jaqueline Naidoo --- School of Education, South Africa Peter Rule --- School of Education, South AfricaSchools play a significant role in conveying essential knowledge, skills and attitudes about HIV and AIDS to millions of learners, and are therefore at the forefront of addressing the HIV/AIDS pandemic. This has resulted in a shift in HIV/AIDS research... -
Cape cormorants decrease, move east and adapt foraging strategies following eastward displacement of their main prey
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJM Crawford --- Branch: Oceans & Coasts, Department of Environmental Affairs, South Africa RM Randall --- South African National Parks, South Africa TR Cook --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa PG Ryan --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa BM Dyer --- Branch: Oceans & Coasts, Department of Environmental Affairs, South Africa R Fox --- Addo Elephant National Park, South African National Parks, South Africa D Geldenhuys --- CapeNature, Voëlklip, South Africa J Huisamen --- CapeNature, Voëlklip, South Africa C McGeorge --- CapeNature, Voëlklip, South Africa MK Smith --- South African National Parks, South Africa L Upfold --- Branch: Oceans & Coasts, Department of Environmental Affairs, South Africa J Visagie --- CapeNature, Scientific Services, Assegaaibosch Nature Reserve, South Africa LJ Waller --- CapeNature, Voëlklip, South Africa PA Whittington --- Department of Zoology, South Africa CG Wilke --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries, South Africa AB Makhado --- Branch: Oceans & Coasts, Department of Environmental Affairs, South AfricaNumbers of Cape cormorants Phalacrocorax capensis breeding in South Africa decreased by nearly 50% from approximately 107 000 pairs in 1977–1981 to 57 000 pairs in 2010–2014. Although four colonies had >10 000 pairs in 1977–1981, there was just one... -
Exploring the spatial distribution patterns of South African Cape hakes using generalised additive models
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Grüss --- Institut de Recherche pour le Développement [IRD], France D Yemane --- Branch: Fisheries Management, South Africa TP Fairweather --- Branch: Fisheries Management, South AfricaWe developed delta generalised additive models (GAMs) to predict the spatial distribution of different size classes of South African hakes, Merluccius capensis and M. paradoxus, using demersal trawl survey data and geographical (latitude and longitude) and environmental features (depth, temperature,... -
Network Bricolage as the Reconciliation of Indigenous and Transplanted Institutions in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Kevin McKague --- Shannon School of Business, Cape Breton University, Canada Christine Oliver --- Schulich School of Business, York University, CanadaThis paper argues that network bricolage can play an important role in reconciling informal indigenous institutions rooted in African history with formal institutions mostly transplanted from outside. Drawing on the literature on bricolage, social entrepreneurship, networks and institutional entrepreneurship, and... -
Happiness and life satisfaction in Rwanda
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kayonda Hubert Ngamaba --- School of Psychological Sciences, United KingdomThis study investigated predictors of happiness and life satisfaction in Rwanda. Data from the World Values Survey and gathered from 3 030 Rwandese (age ranging 16 to 90 years, mean age = 34.2, SD = 12.7; females = 50.5%) were... -
Prevention of mother-to-child transmission (PMTCT) implementation in rural community health centres in Mpumalanga province, South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Guillermo Prado --- Center for Prevention Implementation Methodology (CePIM) for Drug Abuse and Sexual Risk Behavior, USA Viviana Horigian --- Florida Node Alliance of the National Drug Abuse Treatment Clinical Trials Network, USA Stephen Weiss --- Department of Psychiatry and Behavioral Sciences, USA Ryan Cook --- Department of Psychiatry and Behavioral Sciences, USA Sibusiso Sifunda --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Deborah Jones --- Department of Psychiatry and Behavioral Sciences, USAThis study explores organisational and individual provider influences on prevention of mother-to-child transmission (PMTCT) implementation at 12 community health centres (CHCs) in a rural South African setting. Clinic staff members (N = 103; females = 86%, nurse managers = 9.7%,... -
Employability capacities and organisational commitment foci of human resource professionals: An exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ingrid L. Potgieter --- Department of Human Resource Management, Melinde Coetzee --- Department of Industrial & Organisational Psychology, Pretoria Nadia Ferreira --- Department of Human Resource Management,This study explored the relationship between employees’ employability capacities and their organisational commitment foci. A convenience sample of 196 South African human resource professionals participated in the study, consisting of 73% females and 88% black African people, predominantly within their... -
Exploratory study of mindfulness in modern-day sport psychology consulting relationships
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Julius Jooste --- Department of Sport, Rehabilitation and Dental Sciences, South Africa Ankebé Kruger --- Physical Activity, Sport and Recreation (PhASRec), South Africa Barend J. M. Steyn --- Department of Sport and Leisure Studies, South Africa David J. Edwards --- Department of Psychology, South AfricaThis study explored sport psychology practitioners’ mindfulness in relation to the quality of consulting relationships and value within contemporary practice. A total of 34 sport psychology practitioners from South Africa (n = 22, females = 41%) and the United Kingdom... -
Male on-campus resident students’ social normative behaviour: Influences on lived social climate by same gender beginning-year university students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Botha --- Education and Human Rights in Diversity Research Unit, South Africa Corlia Twine --- Faculty of Education Sciences, South AfricaThis article reports on research on antecedents of first-year male students’ experiences of senior male students’ aggression in residences at a university in South Africa. Fourteen purposefully selected first-year male student residents (black = 14%; coloured = 7%; white =... -
Enigmatic tissue in the orobranchial chamber of cardinalfishes of the genus Siphamia (Perciformes, Apogonidae)
Item type: Journal Article • Journal: African Zoology • Authors: Ofer Gon --- South African Institute for Aquatic Biodiversity, South Africa Shirley C Pinchuck --- Electron Microscopy Unit, South AfricaAn unusual tissue covering the tongue and occasionally part of the gill chamber of many species of the Indo-Pacific cardinalfish genus Siphamia is described and compared with an earlier description of a similar tissue found in the cichlid species Alcolapia... -
Birds and biogeography of Mount Mecula in Mozambique’s Niassa National Reserve
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Claire N Spottiswoode --- Department of Zoology, UK Lincoln DC Fishpool --- BirdLife International, UK Julian L Bayliss --- Department of Zoology, UKThe montane forests of northern Mozambique’s isolated massifs are inhabited by numerous range-restricted and threatened bird species, but until recently were extremely little-known. We report on a first avifaunal survey of the isolated montane habitats of Mt Mecula (1 442... -
Observed instances of alarm calling in the Cape Rockjumper
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Krista N Oswald --- Department of Zoology, South AfricaHere I give an account of alarm calls recorded during behavioural observations on Cape Rockjumpers (CRJs) and the potential predators observed nearby. I found CRJs did not produce alarm calls in the presence of Boomslang (a previously known predator of... -
Epidemiology of cystic fibrosis respiratory pathogens isolated at a South African Hospital, 2006–2010
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Vindana Chibabhai --- National Health Laboratory Service (NHLS), Department of Clinical Microbiology and Infectious Diseases, South Africa Warren Lowman --- Department of Clinical Microbiology and Infectious Diseases, South AfricaBackground: The epidemiology of cystic fibrosis (CF) associated pathogens other than Pseudomonas aeruginosa in the South African cystic fibrosis population has not been previously described. -
Efavirenz challenge in patients with nevirapine induced Stevens-Johnson Syndrome
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Thandekile Cecilia Manzini --- Department of Infectious Diseases, South Africa Bernadett Isabel Gosnell --- Department of Infectious Diseases, South Africa Melanie-Anne Amanda John --- Enhancing Care Foundation, South Africa, Department of Infectious Diseases, South Africa Mahomed Yunus Suleman Moosa --- Department of Infectious Diseases, South AfricaBackground: Non-nucleoside reverse transcriptase inhibitors (NNRTI) are recommended as part of first-line treatment by the World Health Organisation (WHO) for antiretroviral treatment (ART) naïve subjects. Due to reports of cross-toxicity between nevirapine (NVP) and efavirenz (EFV), there is reluctance to... -
South African indigenous fruits – Underutilized resource for boosting daily antioxidant intake among local indigent populations?
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Daniela Amalia Kucich --- Department of Chemistry, South Africa Merrill Margaret Wicht --- Department of Chemistry, South AfricaConsuming more than seven portions of fruit and vegetables daily substantially lowers the risk of mortality from any cause, yet many South Africans living below the poverty line have a very low or even zero intake of fruit and vegetables... -
Brachytherapy for cervical cancer: guidelines to facilitate patient-centred care in a multidisciplinary environment
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Deirdré Long --- Department of Oncology, South Africa Hester Sophia Friedrich-Nel --- Faculty of Health & Environmental Sciences, South Africa Georgina Joubert --- Faculty of Health Sciences, South AfricaObjective: To establish patient-centred guidelines to assist multidisciplinary members in providing quality care for cervical cancer patients receiving brachytherapy. -
Immunohistochemistry markers in diagnosing high-grade serous carcinoma of ovary with breast metastasis: a rare case report
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Thiraviyam Elumalai --- Department of Radiotherapy, India Ashutosh Mukherji --- Department of Radiotherapy, India Debasis Gochhait --- Department of Pathology, IndiaOvarian cancer patients presenting with breast metastasis are a rare phenomenon. Very few cases have been documented so far in the literature and have shown that long-term prognosis of these patients is poor despite intense chemotherapy schedules. This report discusses... -
Acute toxicity in cervical cancer HIV-positive vs. HIV-negative patients treated by radical chemo-radiation in Zambia
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Sibusiso Mdletshe --- Medical Imaging and Radiation Sciences Department, South Africa Harry Munkupa --- Oncology Center, Zambia Kennedy Lishimpi --- Oncology Center, ZambiaBackground: The current standard of radical treatment for patients with cancer of the cervix is combination therapy in the form of radiotherapy with chemotherapy. Generally the same treatment protocol is applied to HIV-positive and HIV-negative patients. However, HIV-positive patients with... -
Experiences of women receiving high dose rate brachytherapy for cervical cancer at an academic hospital
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: AD Dzaka --- Komfo Anokye Teaching Hospital, Ghana JE Maree --- Faculty of Health Sciences, Department of Nursing Education, South AfricaThe objective of this study was to present a descriptive summary of the experiences of women treated with high dose rate brachytherapy for cervical cancer. A qualitative descriptive design was used and 16 women treated at an academic hospital in... -
In pursuit of a South African national soil database: potential and pitfalls of combining different soil data sets
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: George M van Zijl --- University of the Free State, South Africa Jacobus O Botha --- Natural Resources Section, KwaZulu-Natal Department of Agriculture and Rural Development, South AfricaA national soil profile database will be a huge asset to South Africa, enabling improved soil information products to be created. However, numerous practical pitfalls exist in reliably creating such a database. This project aimed to identify such pitfalls, while... -
Quantification of primary salinity, sodicity and alkalinity in South African soils using climate regions
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J Piet Nell --- Agricultural Research Council–Institute for Soil, South Africa Cornelius W van Huyssteen --- Department of Soil, Crop and Climate Science, South AfricaNo reliable primarily salinity, sodicity and alkalinity information is available for South Africa, nor are there monitoring programs in place to track the salt-affected status of South African soils. Such information is, however, needed for various agricultural and environmental studies... -
Cu(In,Ga)Se2 solar cells, numerical simulation and analysis
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Hocine Heriche --- Materials and Electronic Systems Laboratory, Algeria Zahir Rouabah --- Materials and Electronic Systems Laboratory, Algeria Sabrina Benabbas --- Materials and Electronic Systems Laboratory, AlgeriaIn this work, we have used a one-dimensional simulation program called the solar cell capacitance simulator (SCAPS) to design solar cells with the structure SnOx/CdS/CIGS (SnOx window, CdS buffer and CIGS absorber material) and study their performance. To improve efficiency... -
Modelling photovoltaic modules by a numerical method and artificial neural networks
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Zahra Meziani --- Department of Electronics, Faculty of Technology, Algeria Zohir Dibi --- Department of Electronics, Faculty of Technology, AlgeriaThis paper proposes modelling approaches for photovoltaic (PV) modules with a fast and simple numerical method of modelling, the Newton–Raphson method, as the first step. This method has several electric circuit models. We selected and tested the two most convincing... -
A numerical study of high efficiency ultra-thin CdS/CIGS solar cells
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sabrina Benabbas --- Materials and Electronic Systems Laboratory, Algeria Zahir Rouabah --- Materials and Electronic Systems Laboratory, Algeria Hocine Heriche --- Materials and Electronic Systems Laboratory, Algeria Nacer-Eddine Chelali --- Materials and Electronic Systems Laboratory, AlgeriaThis work aims to improve the performance of solar cells with structure SnO2/CdS/CIGS/Mo by using the solar cell capacitance simulator (SCAPS-1D). Our idea is to insert the SnS layer between the absorber layer CIGS and the Mo (molybdenum) back contact... -
Mega-trap-plots: a novel method of Sirex woodwasp management on Pinus radiata plantations in Chile
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Miguel A Poisson --- Facultad de Ciencias Forestales, Chile Rodrigo Ahumada --- Bioforest SA, Chile Andrés O Angulo --- Facultad de Ciencias Forestales, Chile Fernando Muñoz --- Facultad de Ciencias Forestales, Chile Eugenio Sanfuentes --- Facultad de Ciencias Forestales, ChileSirex noctilio is one of the most important invasive pests that affect Pinus radiata plantations in Chile. Its management is based on a biological control complex, the most important component of which is the nematode, Deladenus siricidicola. However, in some... -
The annual pattern of sap flow in two Eucalyptus species established in the vicinity of gold-mine tailings dams in central South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Peter Dye --- Ecological Engineering and Phytotechnology Programme, Restoration and Conservation Biology Research Group, School of Animal, Plant and Environmental Sciences, South Africa Alistair Clulow --- Agrometeorology, South Africa Eric Prinsloo --- CSIR, Built Environment, South Africa Vivek Naiken --- CSIR, Natural Resources and the Environment, c/o Agrometeorology, South Africa Isabel Weiersbye --- Ecological Engineering and Phytotechnology Programme, Restoration and Conservation Biology Research Group, School of Animal, Plant and Environmental Sciences, South AfricaSeveral hundred mine tailings dams occur in the Witwatersrand Basin Goldfields in central South Africa. Seepage of acid mine drainage (AMD) from these unlined structures is widespread, and a variety of contaminants is released into soil and groundwater. The ‘Mine... -
The Illusion of Truth in Three Kenyan Crime Novels
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Larry Ndivo --- Department of Linguistics & Languages, KenyaFocusing on crime autobiography in Kenya, this article reads John Kiriamiti’s three novels, My Life in Crime (1984), My Life with a Criminal: Milly’s Story (1989) and My Life in Prison (2004) to argue that although the writer adopts confession... -
The intersection of antiretroviral therapy, peer support programmes, and economic empowerment with HIV stigma among HIV-positive women in West Nile Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nicole Coffey Kellett --- Department of Anthropology, USA Katherine Gnauck --- University of New Mexico Health Sciences Center, University of New Mexico, USAHIV stigma remains a major problem of the AIDS epidemic in sub-Saharan Africa. Women fear impending social stigma including blame, isolation and abuse. HIV infection and HIV stigma interact cyclically, creating and reinforcing economic and social exclusion for individuals living... -
Experiences of alcohol consumption and taking antiretroviral medication among men living with HIV in Tshwane, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sebenzile Nkosi --- Alcohol, Tobacco & Other Drug Research Unit, South African Medical Research Council, South Africa Eileen P. Rich --- Alcohol, Tobacco & Other Drug Research Unit, South African Medical Research Council, South Africa Connie T. Kekwaletswe --- Alcohol, Tobacco & Other Drug Research Unit, South African Medical Research Council, South Africa Neo K. Morojele --- Alcohol, Tobacco & Other Drug Research Unit, South African Medical Research Council, South AfricaHazardous alcohol consumption may compromise optimal antiretroviral therapy (ART) adherence among patients. Adoption of hegemonic notions of masculinity may encourage health-risk behaviours, such as alcohol consumption, and discourage health-enhancing behaviours, such as ART adherence among men. This study aimed to... -
Dynamic Tensions from Management Control Systems and Performance in a Sub-Saharan African Economy: Mediating Effects of Competitive Strategy
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Moses Acquaah --- Department of Management, USA Ahmed Agyapong --- Department of Marketing and Corporate Strategy, GhanaThis study examines how the dynamic tension created as a result of the simultaneous and balanced use of controlling and innovative forces of management control systems indirectly influences firm performance through competitive strategy. Using data from 106 firms from Ghana,... -
Bringing agile practice to the classroom: Student voices of third-year major project implementation
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Deepak Kumar --- Discipline of Information Systems and Technology, South Africa Irene Govender --- Discipline of Information Systems and Technology, South AfricaAgile practices are the current trend in the software industry, so it is, therefore, pertinent that students not only learn but practise agile development in the learning environment. Adapting to a different approach such as agile practices in software systems... -
The relationship between the management of payables and the return to investors
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: T. Moodley --- Gordon Institute of Business Science, South Africa M. Ward [cor1] C. Muller --- Gordon Institute of Business Science, South AfricaEffective working capital management assists a firm in achieving improved liquidity through the management of the components of receivables, inventory, and payables. Previous studies have established that changes in working capital have a strong positive correlation to profitability and that... -
The number of stocks required for effective portfolio diversification: the South African case
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: David Bradfield --- Department of Statistical Sciences, South Africa Brian Munro --- Multi Asset Department, Cadiz Asset Management, South AfricaThis article considers several insights surrounding the number of stocks needed in portfolios in South Africa to achieve effective risk reduction. The majority of studies in the literature use equally-weighted portfolio construction schemes and conclude that at most 20 stocks... -
Could the elongate yellow-orange nostrils of Anguilla bicolor McClelland, 1844 function as fishing lures?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: D Tweddle --- South African Institute for Aquatic Biodiversity, South Africa PH Skelton --- South African Institute for Aquatic Biodiversity, South AfricaThe shortfin eel Anguilla bicolor has elongate, yellow nostrils tipped with orange that protrude forward above the mouth. They are a striking, highly visible feature and it is hypothesised that they function as lures to attract prey, analogous to the... -
The sensitivity of Afromontane tarns in the Maloti-Drakensberg region of South Africa and Lesotho to acidic deposition
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JA Dunnink --- Centre in Water Research and Development (CiWaRD) and Department of Geography, South Africa CJ Curtis --- Centre in Water Research and Development (CiWaRD) and Department of Geography, South Africa JP Beukes --- Unit for Environmental Sciences and Management, South Africa PG van Zyl --- Unit for Environmental Sciences and Management, South Africa J Swartz --- Unit for Environmental Sciences and Management, South AfricaDespite their remoteness from sources of atmospheric pollutant emissions, the Afromontane tarns in the Maloti-Drakensberg region are perfect candidates to study the negative effects of acidifying atmospheric pollution, because mountain lakes are widely recognised as sentinel ecosystems, unimpacted by direct... -
Trophic ecology and persistence of invasive silver carp Hypophthalmichthys molitrix in an oligotrophic South African impoundment
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Lübcker --- Department of Zoology and Entomology, South Africa J Dabrowski --- Department of Zoology and Entomology, South Africa TA Zengeya --- Department of Zoology and Entomology, South Africa PJ Oberholster --- Council for Scientific and Industrial Research (CSIR), South Africa G Hall --- South Africa Stable Isotope Laboratory, South Africa S Woodborne --- South Africa Stable Isotope Laboratory, South Africa MP Robertson --- Centre for Invasion Biology, Department of Zoology and Entomology, South AfricaThe alien invasive silver carp Hypophthalmichthys molitrix established a self-sustaining feral population in an oligotrophic impoundment, Flag Boshielo Dam, in South Africa. The ability of this population to persist in a dam with low algal biomass (median annual suspended chlorophyll... -
First report of cyanobacterial diversity and microcystins in a Microcystis
strain from Sidi Boughaba, a Moroccan coastal lagoon Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Douma --- Department of Biology, Laboratory of Biology and Biotechnology of Microorganisms, N Manaut --- Health and Environment Unit, Provincial Direction of the Ministry of National Education, Morocco B Oudra --- Department of Biology, Laboratory of Biology and Biotechnology of Microorganisms, M Loudiki --- Department of Biology, Laboratory of Biology and Biotechnology of Microorganisms,The cyanobacterial diversity of Sidi Boughaba, a Moroccan coastal lagoon and Ramsar site, was evaluated and its potentially toxic species were isolated and characterised. This study was the first time that cyanobacterial diversity and cyanotoxin production have been characterised in... -
Selective predation and prey class behaviour as possible mechanisms explaining cheetah impacts on kudu demographics
Item type: Journal Article • Journal: African Zoology • Authors: Douglas F Makin --- Centre for African Conservation Ecology, South Africa Graham IH Kerley --- Centre for African Conservation Ecology, South AfricaA number of predator–prey studies show that certain prey demographic classes are targeted over others. The possible mechanisms driving these effects can be two-fold. Firstly, a preference for a certain demographic class results in selective predation by a predator. Secondly,... -
Phylogeography of the pelagic fish Seriola lalandi at different scales: confirmation of inter-ocean population structure and evaluation of southern African genetic diversity
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BL Swart --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa AE Bester-van der Merwe --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa SE Kerwath --- Department of Agriculture, South Africa R Roodt-Wilding --- Molecular Breeding and Biodiversity Group, Department of Genetics, South AfricaThe study investigated the global and regional phylogeography of the yellowtail kingfish Seriola lalandi by examining genetic diversity and population genetic structure of this species at inter-and intra-ocean level and on a regional scale. DNA fragments of two mitochondrial genes,... -
Exploring the invasion of rangelands by Acacia mearnsii (black wattle): biophysical characteristics and management implications
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Onalenna Gwate --- Institute for Water Research, Rhodes University, South Africa Sukhmani K Mantel --- Institute for Water Research, Rhodes University, South Africa Andiswa Finca --- Agricultural Research Council – Animal Production Institute, South Africa Lesley A Gibson --- Department of Construction and Surveying, UK Zahn Munch --- Department of Geography and Environmental Studies, South Africa Anthony R Palmer --- Institute for Water Research, Rhodes University, South AfricaAustralian acacias have spread to many parts of the world. In South Africa, species such as A. mearnsii and dealbata are invasive. Consequently, more effort has focused on their clearing. In a context of increasing clearing costs, it is crucial... -
Varroa mites, viruses and bacteria incidences in Kenyan domesticated honeybee colonies
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Onyango Irene Awino --- Kabete Veterinary Laboratories, Kenya Robert Skilton --- International Centre for Insect Physiology and Ecology, Kenya Shadrack Muya --- Zoology Department, Kenya Samuel Kabochi --- Kabete Veterinary Laboratories, Kenya Hellen Kutima --- Zoology Department, Kenya Muo Kasina --- National Sericulture Research Centre – Kenya Agricultural and Livestock Research Organization, KenyaVarroa mite (Varroa destructor Anderson and Trueman) is a major global threat to the western honey bee (Apis mellifera L.). The ectoparasite has been implicated in the spread of honeybee viruses. Beekeeping plays a major role in transmission of the... -
Child factors associated with complementary feeding practices in Uganda
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Alex Mokori --- Institute of Food, Nutrition and Well-being, University of Pretoria, Uganda Hettie Schonfeldt --- Institute of Food, Nutrition and Well-being and Department of Animal and Wildlife Sciences, South Africa Sheryl L Hendriks --- Institute of Food, Nutrition and Well-being and Department of Agricultural Economics, Extension and Rural Development, South AfricaObjectives: The objective of the study was to identify child factors that influenced complementary feeding practices in 2006 and 2011 in Uganda. -
Improved usefulness of continental soil databases for agricultural management through local adaptation
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Mats Söderström --- International Center for Tropical Agriculture (CIAT), Kenya Kristin Piikki --- International Center for Tropical Agriculture (CIAT), Kenya Jeremy Cordingley --- Crop Nutrition Laboratory Services Ltd, KenyaThe usefulness of a continental digital soil map (AfSoilGrids250) was investigated at two levels relevant for agricultural fertiliser recommendations in Rwanda (point locations and administrative sector unit averages). Analysis of 900 soil samples for pH and soil organic carbon (SOC)... -
Effect of phosphorus and nitrogen sources on essential nutrient concentration and uptake by maize (Zea mays L.) during early growth and development
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Pieter-Ernst Coetzee --- Department of Soil, Crop and Climate Sciences, South Africa Gert M Ceronio --- Department of Soil, Crop and Climate Sciences, South Africa Chris C du Preez --- Department of Soil, Crop and Climate Sciences, South AfricaIn South Africa, maize is often produced on highly weathered soils with low organic matter contents. These soils are unable to supply sufficient nitrogen (N) and phosphorus (P) for sustainable maize production, resulting in the use of fertiliser sources containing... -
Increasing students' safety awareness in a teaching hotel
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Jan Bossema --- , The NetherlandsDuring the past years the attention for safety and health at work has increased, partly through the influence of European law and labour agreements and by acknowledging the huge economic impact of accidents and calamities. It is notable that companies... -
Comparative and theoretical framework of Brazilian hospitality studies
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Elizabeth K. Wada --- School of Hospitality and Tourism, Anhembi Morumbi University, Brazil Airton José Cavenaghi --- School of Hospitality and Tourism, Anhembi Morumbi University, Brazil Maria do Rosário Rolfsen Salles --- School of Hospitality and Tourism, Anhembi Morumbi University, BrazilThe purpose of this article is to give a summary of the bibliographical production of the first publications made by the Master's Programme in Hospitality at the Anhembi Morumbi University, Sã;o Paolo, the compilations edited by Célia Maria de Moraes... -
So you want to get published? It's all about theory, context and data
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Kevin D O'Gorman --- School of Management and Languages, Heriot-Watt University, United Kingdom Thomas J W Farrington --- School of Management and Languages, Heriot-Watt University, United KingdomThis paper offers guidance on writing for publication in peer-reviewed business and management journals. The approach outlined and illustrated within is the amalgamated result of many years of experience in academic writing, editing, and getting published. The paper is primarily... -
A visual analysis of a cultural tourism destination
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Klaes Eringa --- Stenden Hotel Management School, Stenden University of Applied Sciences, The Netherlands Shenghan Zhou --- Stenden Hotel Management School, Stenden University of Applied Sciences, The NetherlandsThis research investigates how a relatively unknown town that is elected as cultural capital of Europe can use visual materials to attract visitors from totally different areas in the world, particularly China. The study uses visual cues for two purposes:... -
Generation Y's attitude towards organic wine
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Inkje Hoekstra --- Stenden University of Applied Sciences, The Netherlands Conrad Lashley --- Hospitality Studies, Stenden University of Applied Sciences, The Netherlands Elena Cavagnaro --- Sustainability in Hospitality & Tourism, Stenden University of Applied Sciences, The NetherlandsThis research paper focuses on the motives behind Generation Y's wine choices. Data collection was done by reviewing relevant literature, interviewing wine experts and organising blind and open wine tastings accompanied by questionnaires and focus group discussions. Results confirm that... -
Hotel quality in the European Capital of Culture: Leeuwarden 2018
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Sjoerd Gehrels --- Stenden Academy of International Hospitality Research, The Netherlands Thomas Landen --- , The NetherlandsThis research looks into the experience as perceived in 2014 by hotel guests in 15 bigger Dutch cities. The hotel reviews of Leeuwarden (Capital of Culture 2018) are compared to those of hotels in the other cities to provide an... -
The power of research in finance to enhance sustainability – Applied to practice
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Gernot Peichl --- Hilton Tallinn Park, Accounting and Finance Department, EstoniaMany people think of research in the hospitality industry as being difficult to relate to practice. This paper shows not only how theory can be applied to practice, but also how practice is related to theory with regard to concepts... -
Sustainable tourism development and the world heritage status of the Wadden Sea: The case of Terschelling
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Akke Folmer --- Research Group Marine Wetlands Studies, The Netherlands Hans Revier --- Research Group Marine Wetlands Studies, The Netherlands Tamara Cupido --- Research Group Marine Wetlands Studies, The NetherlandsNational governments and regions make great efforts to obtain international recognition for their natural heritage, for instance through UNESCO’s World Heritage Sites list. Since June 2009, the Dutch Wadden Sea has been on the World Heritage List. Our study investigates... -
Vestigial appendicular skeletons in the African and Malagasy skink species Feylinia grandisquamis, Melanoseps ater, Grandidierina lineata and Voeltzkowia mira
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Rachel Liniewski --- , , USA Shane Stanley --- , USA Julia Andrade --- , , USA Phil Senter --- , , USAVestigial appendicular skeletons are present but have not previously been described and illustrated in the skink species Feylinia grandisquamis and Melanoseps ater. Vestigial appendicular skeletons have been described and illustrated in only one specimen of Grandidierina lineata and in a... -
Variation in body size and morphometric traits of males and females of the wall gecko, Tarentola delalandii (Phyllodactylidae) from different environments on Tenerife
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: María de Fuentes-Fernández --- , Spain María Mercedes Suárez-Rancel --- , , Spain Miguel Molina-Borja --- , SpainWe analysed sexual dimorphism in body size and several other morphological traits of two populations of Tarentola delalandii on the island of Tenerife (San Cristóbal de La Laguna in the North, and Granadilla de Abona in the South), whose habitats... -
Appendicular skeleton of the vestigial-limbed African skink Eumecia anchietae
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Shane G. Stanley --- , , USA Rachel M. Liniewski --- , , USA Philip J. Senter --- , , USAWithin the lizard family Scincidae (the skinks) are numerous examples of species with vestigial limbs and girdles, but these vestigial structures remain undescribed for many such species. Here we seek to partially fill this gap in knowledge by describing the... -
Obstructive sleep apnoea in pregnancy and its association with pre-eclampsia
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: NC Lintott --- Department of Anaesthesiology and Critical Care, South Africa DG Van Zyl --- Department of Internal Medicine, South Africa JL Burke --- Department of Anaesthesiology and Critical Care, South AfricaBackground: Obstructive sleep apnoea (OSA) in pregnancy is associated with an increased morbidity and mortality to both mother and foetus. In the South African setting the proportion of pregnant females suffering from OSA has not been well studied; nor has... -
Converting Achebe’s Africa for the New Tanzanian: Things Fall Apart in Swahili Translation
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Meg Arenberg --- Princeton Institute of International and Regional Studies, USAGiven the centrality of Chinua Achebe’s work in the early debates surrounding language choice in African fiction and Achebe’s own claims about the necessary transformation of English in representing African reality, what happens when his most acclaimed and archetypal novel... -
Camera-trapping and seed-labelling reveals widespread granivory and scatter-hoarding of nuts by rodents in the Fynbos Biome
Item type: Journal Article • Journal: African Zoology • Authors: Joseph DM White --- Department of Biological Sciences, South Africa Gary N Bronner --- Department of Biological Sciences, South Africa Jeremy J Midgley --- Department of Biological Sciences, South AfricaMany plant–animal interactions can be challenging to directly observe, due to species being small, cryptic and/or nocturnal. Previous research on seed predation and dispersal by rodents in the Fynbos Biome of South Africa has relied on indirect evidence, as methods... -
Morphological variation in the Sabota Lark Calendulauda sabota in southern Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sean M Marr --- Department of Biodiversity, South Africa Mmatjie L Mashao --- Department of Biodiversity, South Africa G Derek Engelbrecht --- Department of Biodiversity, South AfricaSeparation of the eight southern African subspecies of Sabota Lark Calendulauda sabota into thick-billed and slender-billed groups has been proposed. This study used biometric data obtained from museum skins in South Africa to evaluate morphological variation in the subspecies as... -
How well do bird atlas reporting rates reflect bird densities? Correlates of detection from the Fynbos biome, South Africa, with applications for population estimation
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan TK Lee --- Climate Change BioAdaptation, Kirstenbosch Research Centre, South Africa Phoebe Barnard --- Climate Change BioAdaptation, Kirstenbosch Research Centre, South AfricaRelationships between true population densities and reporting indices from atlas data are important for the calculation of population sizes, though these relationships are remarkably little-known and likely confounded by issues of detection. We examine issues of detection for a single-observer... -
Spatial behaviour and food choice of the Garden Warbler Sylvia borin during the non-breeding season
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Soladoye B Iwajomo --- Department of Zoology, Faculty of Science, Nigeria Ulf Ottosson --- Centre for Macroecology Evolution and Climate, Natural History Museum of Denmark, Denmark Kasper Thorup --- Centre for Macroecology Evolution and Climate, Natural History Museum of Denmark, DenmarkInformation regarding the spatial behaviour of migratory bird species on their wintering ground is important in understanding the factors that can influence breeding success and population size. The Garden Warbler Sylvia borin is a migratory species that has been well... -
Movement patterns and survival estimates of Blue Cranes in the Western Cape
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Julia L van Velden --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, South Africa Res Altwegg --- Department of Statistical Sciences, South Africa Kevin Shaw --- CapeNature, South Africa Peter G Ryan --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, South AfricaThe Western Cape population of Blue Cranes Anthropoides paradiseus is the species’ largest and most stable population. How this population utilises the agricultural landscape of the Western Cape, how far individuals disperse and the connectivity between subpopulations is unknown. Basic... -
Natal philopatry in young Cape Vultures Gyps coprotheres
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Margaret T Hirschauer --- VulPro NPC, South Africa Kerri Wolter --- VulPro NPC, South Africa Walter Neser --- VulPro NPC, South AfricaIn 2010, 14 Cape Vulture Gyps coprotheres chicks were ringed as nestlings on the cliffs at the Skeerpoort Cape Vulture colony in the Magaliesberg mountains, South Africa. Observations made during the 2014 and 2015 breeding colony censuses confirm two individuals... -
Obesity and associated factors in young adults attending tertiary institutions in south-eastern Nigeria
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Patricia Ogechi Ukegbu --- Department of Human Nutrition and Dietetics, Nigeria Ada Charity Uwaegbute --- Department of Human Nutrition and Dietetics, Nigeria Chinyere Akudo Echendu --- Department of Human Nutrition and Dietetics, Nigeria Chukwunonso Ejike --- Department of Biochemistry, Nigeria Julie Uche Anyika-Elekeh --- Department of Human Nutrition and Dietetics, Nigeria Victoria Uzoamaka Asumugha --- Department of Human Nutrition and Dietetics, Nigeria Solomon Abasiekong Kuyik --- Department of Food Science and Technology, Nigeria Shola Omodamiro --- Department of Biochemistry, Nigeria Blessing Nwofia --- Department of Human Nutrition and Dietetics, Nigeria Chinwe Uzokwe --- Department of Human Nutrition and Dietetics, Nigeria Chidinma Oluchi-Nliam --- Department of Human Nutrition and Dietetics, Nigeria Nnenna Uwakwe --- Department of Human Nutrition and Dietetics, NigeriaObjective: To assess prevalence of overweight/obesity and associated factors in a group of university undergraduates in south-east Nigeria. -
Delivery of isoniazid preventive therapy to reduce occupational TB among healthcare workers in Swaziland
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Marianne Calnan --- University Research Co., LLC, Swaziland Samson Haumba --- University Research Co., LLC, Swaziland Makhosazana Matsebula --- University Research Co., LLC, Swaziland Ntombifuthi Shongwe --- University Research Co., LLC, Swaziland Munyaradzi Pasipamire --- Swaziland National AIDS Program, Swaziland Natalie Kruse Levy --- USAID/PEPFAR, Swaziland Munamato Mirira --- USAID/PEPFAR, Swaziland Peter Preko --- CDC, Swaziland Alisha Smith-Arthur --- University Research Co., LLC, USA Varduhi Ghazaryan --- University Research Co., LLC, USAHealthcare workers (HCWs) in Swaziland are at increased risk of acquiring tuberculosis (TB), but existing infection control and occupational health policies often fall short of mitigating the risk of acquiring TB in the workplace. Health service failure to systematically offer... -
Optimization of copper nanoparticle biosynthesis process using aqueous extract of Andrographis paniculata
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Supratim Biswas --- Mineral Processing and Technology Research Centre, Department of Metallurgy Faculty of Engineering & The Built Environment, South Africa Suparna Chakraborty --- School of Materials Science and Nanotechnology, India Antoine F. Mulaba-Bafubiandi --- Mineral Processing and Technology Research Centre, Department of Metallurgy Faculty of Engineering & The Built Environment, South AfricaThe competency of aqueous extract of Andrographis paniculata (kalmegh) to reduce copper nitrate for the biosynthesis of copper nanoparticle (CuNPs) was investigated. The experiments were set up according to the design of experiment technique and the results were analyzed for... -
Towards a new model to benchmark firms’ operating efficiency: A data envelopment analysis approach
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Merwe Oberholzer --- Accounting Sciences, South Africa Dawie Mong --- Accounting Sciences, South Africa Jan van Romburgh --- Accounting Sciences, South AfricaThe purpose of the study was to construct two similar data envelopment analysis (DEA) models. The first contains only published accounting-based data and the second added weighted average cost of capital (WACC), a primary market-based determinant, as an input variable... -
Identity as a key factor in the acculturation of young Moroccan-Dutch adults
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Youssef Azghari --- Tilburg University, Avans University of Applied Sciences, The Netherlands Fons J. R. van de Vijver --- Tilburg University, The Netherlands, North-West University, South Africa, University of Queensland, Australia Erna Hooghiemstra --- Avans University of Applied Sciences, Tranzo, Tilburg University, The NetherlandsMany young Moroccan-Dutch in transition within the Dutch society face acculturation challenges and have limited social resources. We examined how different access to social capital (supportive networks among family, friends, and neighbourhood) and social identity of Moroccan-Dutch students (N =... -
Private and public collective self-esteem among black and white South African students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Tsholofelo A. Thomas --- Department of Psychology, South AfricaThis study explored the salience of ethnic public and private collective self-esteem among South African students contrasting by race. Participants were 89 black and 55 white undergraduate students (93 females, 51 males; mean age: 20 years). They completed two subscales... -
Reparative sexual orientation therapy effects on gay sexual identities
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jaco Van Zyl --- Department of Psychology, South Africa Kathryn Nel --- Department of Psychology, South Africa Saraswathie Govender --- Department of Psychology, South AfricaThe study explored gay males’ identities and experiences with sexual reparative therapy. The sample consisted of five white Christian males (age range 24 – 41 years), who responded to a semi-structured interview on their self-identity with reparative therapy. Interpretative Phenomenological... -
A study on the awareness level of additive manufacturing technology in south-western Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: P.K. Farayibi --- Department of Mechanical Engineering, Nigeria T.E. Abioye --- Department of Mechanical Engineering, NigeriaIn this paper, the level of awareness of AM/RP technology in south-western Nigeria was investigated and presented. In a survey, copies of a questionnaire were administered to sixty (60) engineering personnel in research/tertiary institutions in the south-western states in Nigeria... -
Rural realities in service provision for substance abuse: a qualitative study in uMkhanyakude district, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: DM Mpanza --- School of Health Sciences, Discipline of Occupational Therapy, South Africa P Govender --- School of Health Sciences, Discipline of Occupational Therapy, South AfricaBackground: Substance abuse is recognised as a worldwide concern, contributing significantly to morbidity and mortality in South Africa. There is minimal research that has considered influences in mental health care service delivery in rural and disadvantaged communities in South Africa. -
Carbon dioxide: making the right connection
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Matthew Winton Gibbs --- Department of Anaesthesia & Perioperative Medicine, South Africa Ross Hofmeyr --- Department of Anaesthesia & Perioperative Medicine, South AfricaCarbon dioxide has been used in anaesthesia since the late 1920s, principally to stimulate breathing after a period of hyperventilation in the era before routine use of capnography. The authors’ tertiary academic hospital still has the infrastructure for pipeline delivery... -
First report of neonatal bacteraemia caused by blaNDM-1 Raoultella ornithinolytica
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Yesholata Mahabeer --- Department of Medical Microbiology, South Africa Ashika Singh-Moodley --- Centre for Opportunistic, Tropical and Hospital Infections, South Africa Harshavadan Mackanjee --- Department of Paediatrics, South Africa Olga Perovic --- Centre for Opportunistic, Tropical and Hospital Infections, South Africa Koleka P Mlisana --- Department of Medical Microbiology, South AfricaRaoultella ornitholytica, an environmental organism, has only recently been reported as a cause of infections in humans, and is associated mainly with bacteraemia in elderly patients. Carbapenem resistance is unusual in Raoultella spp. We describe the first paediatric case of... -
SASCM guideline for daptomycin use in South Africa – 2017 update
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Warren Lowman --- Vermaak and Partners Pathologists, South Africa Jennifer Coetzee --- Ampath, National Reference Laboratory, Microbiology, South Africa Olga Perovic --- National Institute for Communicable Diseases, Centre for Tropical, Opportunistic and Hospital Infections, South AfricaDaptomycin is currently registered for use in treatment of complicated skin and skin structure infections (cSSSI) and Staphylococcus aureus bacteraemia. The role of daptomycin in treatment of severe Gram-positive infections needs to be considered outside of these specific and rigid... -
Potential of producing green mealies in summer and winter at two sites in KwaZulu-Natal, South Africa, considering rainfall, soil moisture and weeding
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Dolapo B Akinnuoye-Adelabu --- Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Albert T Modi --- Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Tafadzwanashe Mabhaudhi --- Crop Science, School of Agricultural, Earth and Environmental Sciences, South AfricaProducers are exploring possibilities of growing major crops outside the normal growing seasons due to environmental challenges associated with climate change. This study evaluated growth and yield of maize (Zea mays ‘SC701′) in relation to planting season and weeding. Field... -
Assessing effect of rainfall on rate of alien shrub expansion in a southern African savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Mhosisi Masocha --- Department of Geography and Environmental Science, Faculty of Science, Zimbabwe Timothy Dube --- Department of Geography and Environmental Studies, South Africa Andrew Skidmore --- Faculteit Geo-Informatie Wetenschappen en Aardobservatie, The Netherlands Milena Holmgren --- Resource Ecology Group, The Netherlands Herbert Prins --- Resource Ecology Group, The NetherlandsUnderstanding the environmental factors governing the spread of alien shrubs is crucial for conserving biodiversity. In the semi-arid savannas of Africa, alien shrub invasion often occurs simultaneously with native shrub encroachment but climate-dependent differences in encroachments of native and alien... -
Historical vegetation–environment patterns for assessing the impact of climatic change in the mountains of Lesotho
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Craig Morris --- Agricultural Research Council – Livestock Business Division, c/o School of Life Sciences, South AfricaClimate change will probably profoundly impact the Maloti Mountains in Lesotho, which are likely to have a warmer, wetter and more CO2-enriched (eCO2) atmosphere in the future. Intensive smallstock grazing could exacerbate the effects of climate change on the mountain... -
Sheddable armour: identification of osteoderms in the integument of Geckolepis maculata (Gekkota)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Daniel J. Paluh --- , , USA Aaron H. Griffing --- , , USA Aaron M. Bauer --- , , USAOsteoderms are bony deposits that form within the dermal layer of skin in vertebrates. Within geckos, osteoderms are uncommon, only described in Gekko gecko and the genus Tarentola. A previous report of osteoderms in the Afro-Malagasy gekkonid genus Geckolepis has... -
Three new species of Arthroleptella Hewitt, 1926 (Anura: Pyxicephalidae) from the Cape Fold Mountains, South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Andrew Turner --- , South Africa Alan Channing --- , South AfricaA comprehensive survey of the Cape Fold Mountains, South Africa, was undertaken for moss frogs of the genus Arthroleptella. Advertisement calls were recorded and voucher specimens collected for all populations encountered. A molecular phylogeny was constructed for the entire genus... -
Growth and development of a six-year-old Uapaca kirkiana provenance trial at Nauko Forest Reserve, Malawi
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: PW Chirwa RJ Bwanali W SagonaA research trial of seven provenances of Uapaca kirkiana (six obtained locally and one Mozambican) was established in 1997 at Nauko in Malawi in order to evaluate their performance. At six years of age, there were significant (p ≤ 0.05)... -
Estimation of taper rates and volume of smaller-sized logs in spotted gum saw timber plantations in Southeast Queensland, Australia
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: TN Maraseni G Cockfield A ApanSpotted gum (Corymbia citriodora subsp. variegata) is a popular tree species for hardwood saw timber plantations in Southeast Queensland (SEQ), Australia. In many parts of the world, logs up to 10cm top diameter are considered to be merchantable logs and... -
Forest structural assessment using remote sensing technologies: an overview of the current state of the art
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: JW Roberts S Tesfamichael M Gebreslasie J. van Aardt FB AhmedThe Forestry and Forest Products Research Centre (CSIR), University of KwaZulu-Natal and MONDI Business Paper have recently embarked on a remote sensing cooperative. The primary focus of this cooperative is to explore the potential benefits associated with using remote sensing... -
Significant genetic differentiation among meroplanktonic barrel jellyfish Rhizostoma pulmo (Cnidaria: Scyphozoa) in the Mediterranean Sea
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AR Ben Faleh --- Marine Biology Unit, Faculty of Sciences of Tunis, Tunisia H Allaya --- Marine Biology Unit, Faculty of Sciences of Tunis, Tunisia A Armani --- FishLab, Department of Veterinary Sciences, Italy AAB Shahin --- Department of Zoology, Faculty of Science, EgyptMolecular data have shown that jellyfishes are more geographically restricted and evolutionarily divergent than previously thought. We examined genetic variation and divergence within the meroplanktonic barrel jellyfish Rhizostoma pulmo in the Mediterranean Sea; specific sampling areas were the northern Adriatic,... -
Sand-mediated divergence between shallow reef communities on horizontal and vertical substrata in the western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SN Porter --- Oceanographic Research Institute, South Africa GM Branch --- Marine Research Institute and Department of Biological Sciences, South Africa KJ Sink --- Marine Programme, South African National Biodiversity Institute, Centre for Biodiversity Conservation, South AfricaDistinctions are rarely made between vertical and horizontal surfaces when assessing reef community composition, yet physical differences are expected because of hydrodynamic differences and sediment accumulation on flat surfaces. As sand often diminishes biotic cover, we hypothesised that vertical surfaces... -
Philopatry and dispersal of juvenile leervis Lichia amia (Teleostei: Carangidae) tagged in a warm-temperate South African estuary
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Murray --- South African Institute for Aquatic Biodiversity, South Africa P Cowley --- South African Institute for Aquatic Biodiversity, South Africa A-R Childs --- Department of Ichthyology and Fisheries Science, South Africa R Bennett --- South African Institute for Aquatic Biodiversity, South AfricaUnderstanding and characterising movement and area-use patterns of fishes within estuaries, as well as understanding the degree of connectivity between estuaries and the marine environment, can provide important insights into a species’ ecology, which is fundamental for effective management and... -
Distribution, abundance and population structure of Hexaplex trunculus and Bolinus brandaris (Gastropoda: Muricidae) in offshore areas of the Gulf of Gabès, southern Tunisia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Elhasni --- Institut National des Sciences et Technologies de la Mer, Tunisia P Vasconcelos --- Instituto Português do Mar e da Atmosfera, Portugal K Dhieb --- Institut National des Sciences et Technologies de la Mer, Tunisia H El Lakhrach --- Institut National des Sciences et Technologies de la Mer, Tunisia M Ghorbel --- Institut National des Sciences et Technologies de la Mer, Tunisia O Jarboui --- Institut National des Sciences et Technologies de la Mer, TunisiaThe banded murex Hexaplex trunculus and purple dye murex Bolinus brandaris are frequently caught as bycatch by bottom trawlers operating in the Gulf of Gabès, southern Tunisia. Although these muricid gastropods might importantly constitute an additional source of income for... -
Long-term trends in cetacean occurrence during the annual sardine run off the Wild Coast, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Caputo --- Department of Zoology and Entomology, South Africa PW Froneman --- Department of Zoology and Entomology, South Africa D du Preez --- School of Environmental Sciences, South Africa G Thompson --- KwaZulu-Natal Sharks Board, South Africa S Plön --- School of Environmental Sciences, South AfricaDuring the austral winter, cetaceans and other apex predators follow the annual northeastward movement of shoaling sardines, known as the sardine run, along the southeast coast of South Africa, including a 400-km stretch called the Wild Coast. In total, 131... -
Seasonal and sub-seasonal oxygen and nutrient fluctuations in an embayment of an eastern boundary upwelling system: St Helena Bay
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GC Pitcher --- Fisheries Management Branch, Department of Agriculture, Forestry and Fisheries, South Africa TA Probyn --- Fisheries Management Branch, Department of Agriculture, Forestry and Fisheries, South AfricaSeasonal, sub-seasonal and spatial fluctuations in bottom dissolved oxygen (DO) were examined in St Helena Bay, South Africa’s largest and most productive embayment, between November 2013 and November 2014. Alongshore bay characteristics were assessed through comparison of variables along the... -
Domestic Resource Mobilization in Africa: State, Capacity Imperatives and Policy Actions
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Emmanuel Nnadozie --- The African Capacity Building Foundation, Zimbabwe Thomas Munthali --- The African Capacity Building Foundation, Zimbabwe Robert Nantchouang --- The African Capacity Building Foundation, Zimbabwe Barassou Diawara --- The African Capacity Building Foundation, ZimbabweIn Agenda 2063 and Agenda 2030, Africa has its major development aspirations defined in the broader global and continental economic development context. Implementation of the two Agendas calls for substantial financial resources at a time when the global development finance... -
White-backed Vulture Gyps africanus parental care and chick growth rates assessed by camera traps and morphometric measurements
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Machawe I Maphalala --- School of Life Sciences, South Africa Ara Monadjem --- Department of Biological Sciences, SwazilandPersistent vulture declines across Africa are a cause for concern as the number of species threatened with extinction increases. The White-backed Vulture Gyps africanus was, until recently, considered abundant but has been declining rapidly in recent years due to various... -
High occurrence of extra-pair partnerships and homosexuality in a captive Cape Vulture Gyps coprotheres colony
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Margaret T Hirschauer --- VulPro NPC, South Africa Kerri Wolter --- VulPro NPC, South AfricaThe Cape Vulture Gyps coprotheres is an Endangered colonial cliff-nesting species that is typically cited as monogamous. Observations of wild Cape Vulture colonies note extra-pair breeding activities but homosexual activity has never been confirmed. Observations of breeding behaviours within a... -
Status of birds of prey in Guinea-Bissau: first assessment based on road surveys
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Mohamed Henriques --- Marine and Environmental Sciences Centre (MARE), Portugal Miguel Lecoq --- BirdLife International, Senegal Hamilton Monteiro --- Coastal Planning Office, Guinea-Bissau Aissa Regalla --- Instituto da Biodiversidade e Áreas Protegidas (IBAP), Guinea-Bissau José P Granadeiro --- Centro de estudos do ambiente e do mar (CESAM), Departamento de Biologia Animal, Faculdade de Ciências, Portugal Paulo Catry --- Marine and Environmental Sciences Centre (MARE), PortugalSeveral studies have reported marked declines in populations of birds of prey across the African continent, including West Africa. However, there are still regions of which virtually nothing is known, as is the case for Guinea-Bissau. Because birds of prey... -
Removal (and attempted removal) of material from a Hooded Vulture Necrosyrtes monachus nest by a starling and a Hooded Vulture
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Lindy J Thompson --- School of Life Sciences, South Africa John P Davies --- Lawson’s Birding, Wildlife and Custom Safaris, South Africa Keith L Bildstein --- Acopian Centre for Conservation Learning, Hawk Mountain Sanctuary, USA Colleen T Downs --- School of Life Sciences, South AfricaRelatively little is documented about nest material theft in vultures. We used camera traps to monitor Hooded Vulture Necrosyrtes monachus nests for a year. We report camera trap photographs of a starling Lamprotornis sp. removing what appeared to be dung... -
Visitors to nests of Hooded Vultures Necrosyrtes monachus in northeastern South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Lindy J Thompson --- School of Life Sciences, South Africa John P Davies --- Lawson’s Birding, Wildlife and Custom Safaris, South Africa Maja Gudehus --- Selati Private Game Reserve, South Africa André J Botha --- Endangered Wildlife Trust, South Africa Keith L Bildstein --- Acopian Centre for Conservation Learning, Hawk Mountain Sanctuary, USA Campbell Murn --- Hawk Conservancy Trust, UK Colleen T Downs --- School of Life Sciences, South AfricaHooded Vultures Necrosyrtes monachus are critically endangered but little is known of their year-round use of nests or whether other species usurp Hooded Vulture nest sites. We investigated visitation rates by Hooded Vultures and other species (including potential nest predators... -
Sexual dimorphism and plumage characteristics of juvenile Cape Vultures Gyps coprotheres
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Nobuhle T Mabhikwa --- Department of Forest Resources and Wildlife Management, Zimbabwe Margaret T Hirschauer --- VulPro NPO, South Africa Kerri Wolter --- VulPro NPO, South AfricaThe plumage of young Cape Vultures Gyps coprotheres is streaked to varying degrees on the breast, ruff and upper wing coverts. Observations of breast plumage (individual feather streak coverage and overall streaking intensity) were made on Cape Vultures aged one... -
Anaesthetic management of a patient with multiple system atrophy
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Supriya Dsouza --- Department of Critical Care, India Anil Parakh --- Department of Anaesthesiology, India Adarsh Kulkarni --- Seth Gs Medical College and Kem Hospital, India Ajit Baviskar --- Department of Critical Care, IndiaMultiple system atrophy (MSA) is a rare adult-onset neurodegenerative disease. Symptoms vary from autonomic dysfunction to Parkinsonism and cerebellar ataxia, in any combination. MSA affects many organ systems with many possible complications and makes perioperative management of a patient with... -
Appropriate technology and ethical obligations of the university: W.E.B. Du Bois on the Africana university mission
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: C. Verharen --- Department of Philosophy, USA G. Kadoda --- Independent Researcher, Sudan F. Bugarin --- Department of African Studies, USA J. Fortunak --- Department of Chemistry and Pharmaceutical Sciences, USA J. Tharakan --- Department of Chemical Engineering, USA D. Schwartzman --- Department of Biology (Professor Emeritus), USA E. Wensing --- Department of Human Development, USA G. Middendorf --- Department of Biology, USAWorking on the Encyclopedia Africana under the sponsorship of Kwame Nkrumah in Ghana, W.E.B. Du Bois reversed his conviction that only the ‘talented tenth’ could profit from a university education. He proposed that virtually all humans have a right to... -
Personal factors and career adaptability in a call centre work environment: The mediating effects of professional efficacy
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nisha Harry --- Department of Industrial Psychology, South AfricaThe study sought to assess the extent to which professional efficacy mediates the relationship between personal factors and career adaptability in a call centre work setting. The sample consisted of 409 early-career South African call centre workers (black females =... -
Dietary consumption and happiness and depression among university students: A cross-national survey
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- HIV/AIDS/STI/and TB (HAST), South Africa Supa Pengpid --- Department of Research Development and Innovation, South AfricaThe aim of this study was to evaluate the relationships between fruit and vegetable consumption and happiness and depression among university students in a cross-national survey. Using anonymous questionnaires, data were collected from 18 522 undergraduate university students (mean age... -
Longer rest periods for intensive rotational grazing limit diet quality of sheep without enhancing environmental benefits
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Warwick B Badgery --- Orange Agricultural Institute, AustraliaIntensive rotational grazing systems (also called cell grazing, holistic grazing or time-controlled grazing) are often implemented to improve production and environmental outcomes. Over recent years there has been considerable interpretation and adaption of the holistic principles that guide the management... -
Space use by Rhabdosargus holubi in a southern African estuary, with emphasis on fish movements and ecosystem connectivity
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GN Grant --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa PD Cowley --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa RH Bennett --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa TS Murray --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa AK Whitfield --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaTwenty-one juvenile Cape stumpnose Rhabdosargus holubi (140–190 mm fork length) were tagged with internal acoustic transmitters in the lower, middle and upper reaches of the Kowie Estuary, South Africa. The movements of each fish were continually monitored from October 2014... -
Population structure of the sicklefin lemon shark Negaprion acutidens within the Curieuse Marine National Park, Seychelles
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RD Hodgkiss --- Global Vision International Seychelles, Seychelles A Grant --- Global Vision International Seychelles, Seychelles JHR McClelland --- Global Vision International Seychelles, Seychelles R Quatre --- Seychelles National Parks Authority, Seychelles B Rademakers --- Global Vision International Seychelles, Seychelles C Sanchez --- Nature Seychelles, Seychelles C Mason-Parker --- Global Vision International Seychelles, SeychellesThis study produced the first data on population parameters for sicklefin lemon shark Negaprion acutidens at the granitic Seychelles Islands, adding to a limited catalogue of species information. Juveniles at a site in the Curieuse Marine National Park were tagged... -
The potential of Vachellia kosiensis (Acacia kosiensis) as a dryland forestry species in terms of its water use, growth rates and resultant water-use efficiency
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Mark B Gush --- CSIR Natural Resources and the Environment, South AfricaThe potential of the country’s numerous indigenous tree species to address challenges facing the commercial forestry industry in South Africa is under-explored. Relevant issues include the rising demand for timber and non-timber forest products due to population and economic growth,... -
Survival and long-term growth of eucalypts on semi-arid sites in a Mediterranean climate, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ben du Toit --- Department of Forest and Wood Science, South Africa Gideon F Malherbe --- Department of Forest and Wood Science, South Africa Anton Kunneke --- Department of Forest and Wood Science, South Africa Thomas Seifert --- Department of Forest and Wood Science, South Africa C Brand Wessels --- Department of Forest and Wood Science, South AfricaFour experiments were established on the semi-arid west coast plain of South Africa during the 1990s. The trails tested the survival and growth of several eucalypt species and hybrids, some of which were established in a climate that is drier... -
Price gaps: Another market anomaly?
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Guglielmo Maria Caporale --- Brunel University London, CESifo and DIW Berlin, Alex Plastun --- Sumy State University, UkraineThis paper analyses price gaps in financial markets, also known as trading, opening, common, stock or morning gaps – all these terms being used to indicate that the current day’s opening price is not the same as the previous day’s... -
A reflection on Paul Weinberg’s book “Traces and tracks”
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Kharnita Mohamed --- Department of Social Anthropology, School of African and Gender Studies, Anthropology and Linguistics, South AfricaIn this essay, Kharnita Mohamed responds to the book from which Paul Weinberg’s photo essay stems. -
HIV antiretroviral medication stock-outs in Ghana: contributors and consequences
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rebecca A Poku --- The University of Texas Health Science Center at Houston School of Public Health, USA Adobea Yaa Owusu --- Institute of Statistical, Social, and Economic Research, University of Ghana, Ghana Patricia Dolan Mullen --- The University of Texas Health Science Center at Houston School of Public Health, USA Christine Markham --- The University of Texas Health Science Center at Houston School of Public Health, USA Sheryl A McCurdy --- The University of Texas Health Science Center at Houston School of Public Health, USADrug stock-outs are an unfortunate yet common reality for patients living in low and middle income countries, particularly in sub-Saharan Africa where trouble with consistent stock of antiretroviral medications (ARVs) continues. Our study takes a snapshot of this problem in... -
Horizontal transfer of OXA-23-carbapenemase-producing Acinetobacter species in intensive care units at an academic complex hospital, Durban, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Khine Swe Swe-Han --- Department of Medical Microbiology, South Africa Melendhran Pillay --- Department of Medical Microbiology, South Africa Desmond Schnugh --- Infection Control Services Laboratory, Department of Clinical Microbiology and Infectious Diseases, South Africa Koleka P Mlisana --- Department of Medical Microbiology, South Africa Kamaldeen Baba --- Department of Medical Microbiology, National Health Laboratory Service, South Africa Manormoney Pillay --- Medical Microbiology and Infection Control, School of Laboratory Medicine & Medical Science, South AfricaIntroduction: Carbapenemase production is an important mechanism of carbapenem resistance in Acinetobacter species. This study investigated the presence of the carbapenem-hydrolysing class D β–lactamase- encoding genes, blaOXA-23 and blaOXA-58, and their association with the spread of multidrug-resistant (MDR) Acinetobacter species... -
The emergency management of a rape case in a nutshell: adolescent and adult cases
Item type: Journal Article • Journal: South African Family Practice • Authors: JM Kotzé --- Department of Forensic Medicine, South Africa H Brits --- Department of Family Medicine, South AfricaThe management of a rape case in the emergency department is shrouded in an unacceptable level of lack of confidence. Since South Africa has a high incidence of rape, the contribution of health practitioners in addressing the crime successfully is... -
Technological appropriability and export performance of Brazilian firms
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Graziela Ferrero Zucoloto --- Institute of Applied Economic Research, Brazil Julio Raffo --- Division Sectorial Studies, World Intellectual Property Organization, Economics and Statistics Division, Switzerland Sergio Leão --- Phd in Economics at Pontificia Universidade Catolica (PUC), BrazilThis paper aims to evaluate the strategies of Brazilian manufacturing firms in their use of intellectual property (IP) and its impact on their export performance. Although the correlation between exports and innovative activities is already consolidated in the existing literature,... -
Pre-trial therapy for child witnesses in cases of sexual abuse: A scoping literature review
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ansie Fouché --- Social Work Subject Group, Optentia Research Focus Area, South Africa Daniël F. Fouché --- Department of Legal Sciences, South AfricaGlobally, child complainants of sexual abuse are expected to testify in criminal proceedings and in some countries therapy is delayed until after the child testifies as not to contaminate the child’s version of events. We carried out a scoping review... -
Vicarious traumatisation experiences among South African Police Service members in a rural setting: An exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Masefako Andronica Gumani --- Department of Psychology, South AfricaThe objective of this study was to explore the vicarious traumatisation experiences of South African Police Service members serving in a rural community. The participants consisted of 17 purposively selected police members (females = 4; age range 27 to 55;... -
The fathers of Destiny: Representations of fatherhood in a popular South African magazine
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Bertrand Leopeng --- Department of Psychology, South Africa Malose Langa --- Department of Psychology, South AfricaThis study utilised textual analysis to characterise the representation of fatherhood in the eight issues of Destiny Man magazine published in 2014. Stories that pertained to fatherhood and that were related to aspects of contemporary family construction, work, and identity... -
Exploring the personal and social context of female youth sex offenders
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- Department of Criminology & Security Science, South Africa Gloria da Costa --- Department of Criminology & Security Science, South AfricaThis study explored the personal and social context of young female sex offenders, probing their risk profiles for prospective treatment interventions. A convenience sample of eight young South African female sexual offenders participated in the study (black = 88%, Indian... -
Career meta-capacities and retention factors of recruitment advertising agencies: An exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nadia Ferreira --- Department of Human Resource Management, South Africa Ester Mujajati --- Department of Human Resource Management, South AfricaThis study aimed to determine the extent to which employees’ career adaptability and employability capacities predicted employee retention factors in the information sector industry. A probability sample of 337 South African recruitment advertising employees participated in the study (females =... -
Estimating Cape hare occupancy and abundance in southern Tunisia using spotlighting data
Item type: Journal Article • Journal: African Zoology • Authors: Chammem Mohsen --- Laboratoire d’Elevage et de la Faune Sauvage, Tunisia Karssene Yamna --- Laboratoire d’Elevage et de la Faune Sauvage, Tunisia Jarray Mohsen --- Laboratoire d’Elevage et de la Faune Sauvage, Tunisia Khorchani Touhami --- Laboratoire d’Elevage et de la Faune Sauvage, TunisiaThis study outlines the importance of integrating spotlighting data and occupancy modelling to estimate the spatial occupancy, abundance and habitat preferences of Cape hares Lepus capensis in southern Tunisia. Exploring the spatial distribution pattern of this species is problematic because... -
Retention of plastic-tipped dart tags in African tigerfish Hydrocynus vittatus
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FJ Jacobs --- Ministry of Fisheries and Marine Resources, Namibia OLF Weyl --- DST/NRF Research Chair in Inland Fisheries and Freshwater Ecology, South Africa NS Libala --- Ministry of Fisheries and Marine Resources, Namibia GC O’Brien --- School of Life Sciences, South Africa CT Downs --- School of Life Sciences, South AfricaEstimates of tag retention and tagging-related mortality are essential for mark-recapture experiments. Mortality and tag loss were estimated from 15 tigerfish Hydrocynus vittatus marked using Hallmark model PDL plastic-tipped dart tags released into a 1 730 m2 pond at Kamutjonga... -
Gender-related morphometric differences in mature and nestling Crowned Eagles, with comments on ringing of eagle nestlings in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Shane C McPherson --- School of Life Sciences, South Africa Mark Brown --- School of Life Sciences, South Africa Colleen T Downs --- School of Life Sciences, South AfricaAlthough most raptor species are sexually dimorphic, many species are non-discrete in some metrics. A limited amount of existing data for southern Africa suggests that Crowned Eagles Stephanoaetus coronatus exhibit non-discrete sexual dimorphism. Consequently, we investigated gender-related morphometric data of... -
The taxonomic position and breeding range of Golden Nightjar Caprimulgus eximius (Caprimulgidae)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Yvonne Lawrie --- School of Medicine, Medical Sciences and Nutrition, Institute of Medical Sciences, UK Robert Swann --- , UK Peter Stronach --- , UK Yoav Perlman --- Israel Ornithological Center, Israel J Martin Collinson --- School of Medicine, Medical Sciences and Nutrition, Institute of Medical Sciences, UKGolden Nightjar Caprimulgus eximius is an apparently sedentary sub-Saharan species with a breeding range extending from Senegal and Mauritania to Sudan. Although genetic studies of nightjars and related Caprimulgiformes have been published previously, none has included Golden Nightjar. In this... -
The application of camera trapping to assess Rallidae species richness within palustrine wetland habitat in South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Robin B Colyn --- Terrestrial Bird Conservation Programme, South Africa Alastair M Campbell --- Ingula Nature Reserve, South Africa Hanneline A Smit-Robinson --- Terrestrial Bird Conservation Programme, South AfricaWetlands are vital habitats for a variety of organisms and ecosystem services, but the health of these valuable habitats is declining worldwide. The Rallidae species that rely on these habitats are typically elusive, cryptic and difficult to monitor accurately, especially... -
Gendered childcare norms — evidence from rural Swaziland to inform innovative structural HIV prevention approaches for young women
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Pinky N Shabangu --- Independent community-based researcher, Swaziland Michelle R Brear --- Faculty of Medicine Nursing and Health Sciences, Jean Hailes Research Unit, School of Public Health and Preventive Medicine, AustraliaAddressing discriminatory gender norms is a prerequisite for preventing HIV in women, including young women. However, the gendered expectation that women will perform unpaid childcare-related labour is rarely conceptualised as influencing their HIV risk. Our aim was to learn from... -
Fishery benefits from exploiting spawning aggregations not solely dependent on enhanced fish density
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Robinson --- Australian Research Council (ARC) Centre of Excellence for Coral Reef Studies, Australia NAJ Graham --- Australian Research Council (ARC) Centre of Excellence for Coral Reef Studies, Australia A Grüss --- Department of Marine Biology and Ecology, Rosenstiel School of Marine and Atmospheric Science, USA C Gerry --- Seychelles Fishing Authority, Seychelles J Bijoux --- Seychelles Fishing Authority, SeychellesThe vulnerability of spawning aggregations to exploitation varies among fisheries as a result of differences in the population-density changes associated with this behaviour. However, vulnerability to fishing is also influenced by technology, environmental factors, and fish and fisher behaviours. Focusing... -
Contrasting hydrography and phytoplankton distribution in the upper layers of cyclonic eddies in the Mozambique Basin and Mozambique Channel
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Lamont --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa RG Barlow --- Marine Research Institute and Department of Oceanography, South AfricaHydrographic data collected in cyclonic eddies in the Mozambique Channel and Basin revealed notable differences in temperature and salinity at a depth of 100 m, the upper mixed layer, the nitracline depths, and vertical distribution of chlorophyll-a (Chl-a). Differences in... -
Phylogeny of the Sepia officinalis species complex in the eastern Atlantic extends the known distribution of Sepia vermiculata across the Benguela upwelling region
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AJE Healey --- Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Wales NJ McKeown --- Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Wales WM Potts --- Department of Ichthyology and Fisheries Science, South Africa CL de Beer --- Department of Ichthyology and Fisheries Science, South Africa W Sauer --- Department of Ichthyology and Fisheries Science, South Africa PW Shaw --- Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, WalesAccurate species identification and biogeographic characterisation are fundamental for appropriate management of expanding cephalopod fisheries. This study addresses this topic within the common cuttlefish Sepia officinalis species complex (S. officinalis, S. hierredda and S. vermiculata), with an emphasis on occurrence... -
Changes in recreational shore anglers’ attitudes towards, and awareness of, linefish management along the KwaZulu-Natal coast, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RW Kramer --- Oceanographic Research Institute (ORI), South Africa BQ Mann --- Oceanographic Research Institute (ORI), South Africa SW Dunlop --- Oceanographic Research Institute (ORI), South Africa JB Mann-Lang --- Oceanographic Research Institute (ORI), South Africa D Robertson-Andersson --- School of Life Sciences, South AfricaManagement of recreational fisheries cannot be based on biological and stock assessment data alone but needs to include appropriate social aspects (including knowledge, attitudes and behaviour) of anglers within the fishery. The primary purpose of this study was to evaluate... -
Focusing on monofilament nets while overlooking the priorities of artisanal fisheries governance in Senegal
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Thiao --- Centre de Recherches Océanographiques de Dakar-Thiaroye (CRODT), Senegal A Mbaye --- Centre de Recherches Océanographiques de Dakar-Thiaroye (CRODT), Senegal M Dème --- Centre de Recherches Océanographiques de Dakar-Thiaroye (CRODT), Senegal HD Diadhiou --- Centre de Recherches Océanographiques de Dakar-Thiaroye (CRODT), SenegalDespite its legal prohibition since 1998, the nylon monofilament net is still widely used in Senegalese artisanal fisheries. To achieve a complete ban on monofilament use, it is necessary to understand the main arguments for its continued use and what... -
Upgrading opportunities in agricultural value chains: Lessons from the analysis of the consumption of processed pineapple products in southern Benin
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Augustin K. N. Aoudji --- Département d’Economie, de Socio-Anthropologie et de Communication pour le développement rural, Faculté des Sciences Agronomiques, Bénin Carolle Avocevou-Ayisso --- Département d’Economie, de Sociologie Rurales, Ecole Nationale Supérieure des Sciences et Techniques Agronomiques de Kétou, Kétou, Bénin Anselme Adégbidi --- Département d’Economie, de Socio-Anthropologie et de Communication pour le développement rural, Faculté des Sciences Agronomiques, Bénin Cassien Gbénou --- UFR des Sciences Agronomiques, Bénin Philippe Lebailly --- Unité d’Economie et Développement rural, BelgiqueThis study analyzed the consumption of processed pineapple products in southern Benin. The low processing of agricultural products does not enable sub-Saharan Africa to exploit the potential of agriculture for development. The objective of this paper was to identify upgrading... -
Adoption of agrochemical management practices among smallholder cocoa farmers in Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Gideon Danso-Abbeam --- SAEES – Discipline of Agricultural Economics, South Africa Lloyd J. S. Baiyegunhi --- SAEES – Discipline of Agricultural Economics, South AfricaThis study explores smallholder cocoa farmers’ adoption decisions of agrochemical inputs in the Ghanaian cocoa industry using farm-level data collected from a sample of 838 farm households in four cocoa producing regions. Multivariate probit and Tobit models were used to... -
The effect of sevoflurane induction on the myocardial performance index in healthy individuals
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Aidan C Kingwill --- Department of Anaesthesia, School of Medicine, South Africa Johannes van der Westhuizen --- Department of Anaesthesia, School of Medicine, South Africa Edwin W Turton --- Department of Anaesthesia, School of Medicine, South AfricaBackground: The myocardial performance (Tei) index is a simple, reproducible and easily performed measure of cardiac performance. Its ease of use and proven clinical application make this an attractive measure perioperatively. For appropriate use of this index under sevoflurane anaesthesia,... -
Perioperative echocardiography for invasive thymoma with intracardiac invasion in a child: a case report
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Megan Sanders --- Department of Anaesthesiology, South Africa Ahmad Alli --- Department of Anaesthesiology, South AfricaIn the paediatric population, thymomas are rare mediastinal tumours. Surgical management is the main treatment for these tumours. A case of an aggressive thymoma with intracardiac invasion in a child is presented. The management plan involved either resection of the... -
(Un)becoming Mountain Tigers Football Club: an ethnography of sports among the Western Cape’s farm workers
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Tarminder Kaur --- Institute for Reconciliation and Social Justice, University of the Free State, South AfricaIn 1999, farm workers at commercial farms in Louwshoek valley, Western Cape, founded the Mountain Tiger Football Club (MTFC). In addition to playing self-organised (unofficial) football for money (or other stakes), the MTFC had a stint of competing in the... -
Farm worker identities contested and reimagined: gender, race/ethnicity and nationality in the post-strike moment
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Åsa Eriksson --- Department of Ethnology, History of Religions and Gender Studies, SwedenIn 2012/2013, widespread rural unrest — commonly referred to as the “farm worker strike” — broke out in the Western Cape, South Africa. This exposed not only poor salaries and working conditions, but also the disparity between representations of farm... -
Microfossils in surface sediments of brackish waters on the west coast of South Africa and their palaeoecological implications
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: S Fürstenberg --- Institute of Geosciences, Friedrich Schiller University Jena, Germany N Gründler --- Institute of Geosciences, Friedrich Schiller University Jena, Germany S Meschner --- Institute of Geosciences, Friedrich Schiller University Jena, Germany P Frenzel --- Institute of Geosciences, Friedrich Schiller University Jena, GermanyA faunistic survey covering 25 sites in estuaries, coastal lakes and ponds along the west coast of South Africa between the Cape of Good Hope in the south and the Olifants River in the north was carried out in May... -
Systematic reinstatement of Schilbe depressirostris (Peters, 1852), based on differences in DNA barcoding and morphology, from Schilbe intermedius Rüppell, 1832 (Siluriformes, Schilbeidae)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HF van der Bank --- African Centre for DNA Barcoding, Kingsway Campus, South Africa BS Bezeng --- African Centre for DNA Barcoding, Kingsway Campus, South Africa PH Skelton --- South African Institute for Aquatic Biodiversity, South AfricaClimate change poses an unprecedented threat to biodiversity worldwide. Consequently, unrecognised taxa may not receive adequate conservation attention to survive. We used molecular and morphological data to address the challenge of species delimitation within the genus Schilbe. The presence or... -
Cyclic variation of the oviduct structure of Boulengerula taitana, an oviparous species of Gymnophiona: morphological changes, proliferation and apoptosis
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: C. Brun --- , France M.A. Raquet --- , France G.J. Measey --- , , South Africa J.M. Exbrayat --- , FranceFunctioning of the amphibian oviduct is the subject of many studies, but detailed understanding of caecilian reproduction exists for very few species. In this study, a description is made of morphological changes of the oviduct of the caecilian Boulengerula taitana... -
Retrospective clinical analysis of adverse drug reactions associated with antiretroviral therapy in Tlokwe district, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: Rentia van Graan --- Centre of Excellence for Pharmaceutical Sciences (PharmaCen), Division of Pharmacology, South Africa Michelle Viljoen --- Centre of Excellence for Pharmaceutical Sciences (PharmaCen), Division of Pharmacology, South Africa Malie Rheeders --- Centre of Excellence for Pharmaceutical Sciences (PharmaCen), Division of Pharmacology, South Africa Fadeela Motara --- Potchefstroom Hospital, Pharmacy, South AfricaBackground: South Africa has the highest number of patients on antiretroviral therapy (ART) globally. Various obstacles were identified that influence effective reporting of adverse drug reactions (ADRs) in resource-limited countries. This investigation aimed to identify, classify and analyse the prevalence... -
Phylogeography of oribi antelope in South Africa: evolutionary versus anthropogenic panmixia
Item type: Journal Article • Journal: African Zoology • Authors: Bettine Jansen van Vuuren --- Centre for Ecological Genomics and Wildlife Conservation, Department of Zoology, South Africa Ian Rushworth --- Ecological Advice Division, Scientific Services, South Africa Claudine Montgelard --- Centre for Ecological Genomics and Wildlife Conservation, Department of Zoology, South AfricaThe increased rate of human-driven change is a major threat to biodiversity. Although there is sufficient evidence to suggest that species notably alter their ranges, facilitation of such movement for larger vertebrate species often places burdens on management agencies. Oribi... -
Age and growth of narrow-barred Spanish mackerel Scomberomorus commerson in the coastal waters of southern Mozambique and KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: B Lee --- Oceanographic Research Institute (ORI), South Africa BQ Mann --- Oceanographic Research Institute (ORI), South AfricaThe narrow-barred Spanish mackerel Scomberomorus commerson is one of the most important linefish species caught in KwaZulu-Natal and southern Mozambique waters, forming the basis of important commercial, artisanal and recreational fisheries. A total of 439 S. commerson were sampled along... -
Vertical distribution of living mangrove foraminifera from KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: KL Strachan --- Discipline of Geography, School of Agricultural, Earth and Environmental Sciences, South Africa TR Hill --- Discipline of Geography, School of Agricultural, Earth and Environmental Sciences, South Africa JM Finch --- Discipline of Geography, School of Agricultural, Earth and Environmental Sciences, South AfricaModern foraminiferal assemblage zones can be used to reconstruct palaeo sea levels when applied to fossil foraminifera down a sediment core. Previous intertidal foraminiferal studies have predominantly focused on assemblages in surface sediments (0–1 cm), with the rationale that surface... -
Multi-stakeholder collaboration yields valuable data for cetacean conservation in Gamba, Gabon
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Minton --- WWF Gabon, Gabon JR Kema Kema --- WWF Gabon, Gabon A Todd --- Gabon Biodiversity Program, Center for Conservation and Sustainability, Gabon L Korte --- Gabon Biodiversity Program, Center for Conservation and Sustainability, Gabon PB Maganga --- WWF Gabon, Gabon JR Migoungui Mouelet --- Brigade de Peche de Gamba/Department des Pêches et d’Aquaculture, Gabon AM Nguema --- Agence National des Parc Nationaux, Gabon E Moussavou --- Brigade de Peche de Gamba/Department des Pêches et d’Aquaculture, Gabon GK Nguélé --- Agence National des Parc Nationaux, GabonPrivate industry, the Government of Gabon and two international NGOs collaborated to conduct marine surveys off the coast of Gabon, Central Africa. Surveys addressed multiple objectives of surveillance and monitoring, the documentation of the distribution of and threats to the... -
Comparative genetic structure in two high-dispersal prawn species from the south-west Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TK Mkare --- Kenya Marine and Fisheries Research Institute, Kenya JC Groeneveld --- Oceanographic Research Institute (ORI), South Africa PR Teske --- Centre for Ecological Genomics and Wildlife Conservation, Department of Zoology, South Africa CA Matthee --- Evolutionary Genomics Group, Department of Botany and Zoology, South AfricaThe penaeid prawns Fenneropenaeus indicus and Metapenaeus monoceros support shallow-water prawn fisheries in the south-west Indian Ocean. They are sympatric and have similar life histories, including developmental stages that depend on estuarine and marine habitats and a short dispersal duration... -
Movement patterns of an endangered fishery species, Lithognathus lithognathus (Sparidae), and the role of no-take marine protected areas as a management tool
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RH Bennett --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa PD Cowley --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa A-R Childs --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa CG Attwood --- Department of Biological Sciences, South Africa L Swart --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa TF Næsje --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaUnderstanding movement behaviour is essential for effective management of fishery species. Dart tags were used to study coastal movement patterns of white steenbras Lithognathus lithognathus, an overexploited seabream (Sparidae) in South Africa. In total, 6 962 fish (190–1 080 mm... -
Habitat variables associated with encounters of Hottentot Buttonquail Turnix hottentottus during flush surveys across the Fynbos biome
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan TK Lee --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa Dale R Wright --- BirdLife South Africa, South Africa Brian Reeves --- Eastern Cape Parks and Tourism Agency, South AfricaThe Hottentot Buttonquail Turnix hottentotus is an endangered terrestrial turnicid and is endemic to the Fynbos biome, South Africa. Due to its secretive nature and apparent rarity almost nothing is known about the species, but its range has been subject... -
Managing human disturbance: factors influencing flight-initiation distance of birds in a West African nature reserve
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Bukola Braimoh --- AP Leventis Ornithological Research Institute, University of Jos, Nigeria Soladoye Iwajomo --- Department of Zoology, Faculty of Science, Nigeria Mark Wilson --- British Trust for Ornithology, UK Adams Chaskda --- AP Leventis Ornithological Research Institute, University of Jos, Nigeria Afan Ajang --- AP Leventis Ornithological Research Institute, University of Jos, Nigeria Will Cresswell --- AP Leventis Ornithological Research Institute, University of Jos, NigeriaEscape behaviour in response to perceived predators can be employed as a guide when designating protected areas around sensitive bird species to minimise the impact of human disturbance. A key measure of escape response is flight-initiation distance (FID), the distance... -
Nightjar diversity and microhabitat use in Nechisar National Park, Ethiopia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ruben Evens --- Research Group Zoology: Biodiversity and Toxicology, Belgium Natalie Beenaerts --- Research Group: Environmental Biology, Belgium Nele Witters --- Research Group: Environmental Economics, Belgium Tom Artois --- Research Group Zoology: Biodiversity and Toxicology, BelgiumKnowledge of the distribution and ecology of East African nightjars is, to a large extent, unknown. We collected ecological information on the diversity and microhabitat use of nightjars in Nechisar National Park in January 2015 by executing field captures and... -
Volume estimation of Cryptomeria japonica logs in southern Brazil using artificial intelligence models
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Carlos R Sanquetta --- Forest Sciences Department, Brazil Luani RO Piva --- Postgraduate Program on Tropical Forests Sciences, Brazil Jaime Wojciechowski --- Professional and Technological Education Sector, Brazil Ana PD Corte --- Forest Sciences Department, Brazil Ana B Schikowski --- Forest Sciences Department, BrazilThis study aimed to test taper functions and artificial intelligence (AI) models in order to estimate merchantable volumes of Japanese cedar (Cryptomeria japonica) trees in a homogenous plantation in southern Brazil. A total of 30 individuals were rigorously scaled and... -
Role of site in the mortality and production of Acacia mangium plantations in Indonesia
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Marcus Hardie --- Tasmanian Institute of Agriculture, University of Tasmania, Australia Nawari Akhmad --- Research and Development RAPP, APRIL Group, Indonesia Caroline Mohammed --- Tasmanian Institute of Agriculture, University of Tasmania, Australia Daniel Mendham --- CSIRO Ecosystem Sciences and Sustainable Agriculture Flagship, Australia Ross Corkrey --- Tasmanian Institute of Agriculture, University of Tasmania, Australia Abdul Gafur --- Research and Development RAPP, APRIL Group, Indonesia Sabar Siregar --- Research and Development RAPP, APRIL Group, IndonesiaIn Indonesia, Acacia mangium plantations exceed 1.6 Mha contributing approximately 3.5% of the country’s GDP. The viability of these plantations is increasingly threatened by fungal pathogens, insect pests, squirrels, monkeys, elephants and wind damage. Studies indicate that the problem is... -
Single-tree water use and water-use efficiencies of selected indigenous and introduced species in the Southern Cape region of South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tatenda Mapeto --- School of Natural Resources Management, South Africa Mark Gush --- CSIR, Natural Resources and Environment, South Africa Josua Louw --- School of Natural Resources Management, South AfricaIn South Africa, the development of a plantation tree industry using fast-growing introduced species was accelerated by the limited extent of indigenous forests. However, concerns about the impacts of plantations on the country’s limited water resources has initiated forest hydrology... -
A first-approximation simple dynamic growth model for forest teak plantations in Gujarat state of India
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Vindhya Prasad Tewari --- Himalayan Forest Research Institute, India Bilas Singh --- Arid Forest Research Institute, IndiaTectona grandis (teak) is one of the most important tropical timber species occurring naturally in India. In India, teak is the single most important commercial timber species. Scientifically sound growth models, based on advanced modelling techniques, are often not available,... -
An investigation into the normal tax implications of a carried interest in South Africa
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Ellané van Wyk --- Department of Accounting, South Africa Tertius Troost --- Mazars, South Africa‘Carried interest’ is not defined in the South African Income Tax Act 58 of 1962 as amended (the Act), nor has it been subject to scrutiny in South African courts. Uncertainty prevails regarding the classification of a carried interest for... -
In search of conclusive evidence on the trade-off and pecking order theories of capital structure: Evidence from the Johannesburg Stock Exchange
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Chimwemwe Chipeta --- School of Economic and Business Sciences, South Africa David McClelland --- School of Economic and Business Sciences, South AfricaThis paper tests the validity of the trade-off and pecking order theories of capital structure for non-financial firms listed on the Johannesburg Stock Exchange. Firstly, we find that the pecking order model is superior than the partial adjustment regressions at... -
Intravenous paracetamol — waste not, want not: a retrospective audit on the appropriate use of intravenous paracetamol at Universitas Academic Hospital Complex—Bloemfontein
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: NJ Procter --- Department of Anaesthesiology, South Africa G Lamacraft --- Department of Anaesthesiology, South Africa G Joubert --- Department of Biostatistics, South AfricaBackground: Paracetamol can be given both orally and intravenously (IV) with similar clinical efficacy, but the IV formulation is 360 times more expensive. IV paracetamol is therefore only recommended when the oral route is not available. This study investigated whether... -
‘Treating a patient should be approached in a holistic manner’: collaboration of doctors and physiotherapists in the rehabilitation of people living with HIV
Item type: Journal Article • Journal: South African Family Practice • Authors: Stacy Maddocks --- Physiotherapy, School of Health Sciences, South Africa Verusia Chetty --- Physiotherapy, School of Health Sciences, South Africa Arishna Maghoo --- Physiotherapy, School of Health Sciences, South Africa Nkuleleko Mhlongo --- Physiotherapy, School of Health Sciences, South Africa Nsindiso Mthembu --- Physiotherapy, School of Health Sciences, South Africa Sinempilo Khanyile --- Physiotherapy, School of Health Sciences, South Africa Siphokazi Chiliza --- Physiotherapy, School of Health Sciences, South Africa Tyrel Munsamy --- Physiotherapy, School of Health Sciences, South Africa Zanele Gamede --- Physiotherapy, School of Health Sciences, South Africa Slindile Mazibukoc --- Physiotherapy, School of Health Sciences, South AfricaPeople living with HIV facing impairments and subsequent disabilities related to the virus and its treatment require involvement of a collaborative team of healthcare professionals to ensure reintegration into daily life and community living. Healthcare teams responsible for this care... -
Do we miss half of the injuries sustained during rape because we cannot see them? An overview of the use of toluidine blue tissue stain in the medical assessment of rape cases
Item type: Journal Article • Journal: South African Family Practice • Authors: JM Kotzé --- Department of Forensic Medicine and Department of Family Medicine, South Africa H Brits --- Department of Family Medicine, South AfricaThe prosecution of rape cases is difficult due to the absence of eyewitnesses. McCauley found that the detection of vaginal lacerations increased from one in 24 to 14 in 24 in reported adult rape cases when toluidine blue was used... -
Factors associated with delivering premature and/or low birth weight infants among pregnant HIV-positive women on antiretroviral treatment at Dr George Mukhari Hospital, South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: NN Gibango --- Department of Paediatrics and Child Health, South Africa S Mda --- Department of Paediatrics and Child Health, South Africa TS Ntuli --- Department of Public Health, South AfricaBackground: Prematurity and low birthweight (LBW) deliveries amongst pregnant women infected with the human immunodeficiency virus (HIV) remain a challenge worldwide. The association between prematurity, LBW and antiretroviral therapy (ART) or prophylactic antiretroviral drug (ARV) exposure in pregnancy is unclear... -
Managing HIV-positive sero-status in Ghana’s most HIV concentrated district: self-perceived explanations and theoretical discourse
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Adobea Y Owusu --- Institute of Statistical, Social and Economic Research (ISSER), Ghana Amos Laar --- Department of Family and Population Health, School of Public Health, GhanaAs of December 2015 there were 37 million persons living with HIV/AIDS (PLWHAs), 70% of whom are in sub-Saharan Africa. Ghana, which contributes a relatively small number to Africa’s HIV burden, has a generalised HIV epidemic. The current national prevalence... -
Jail duration, demographic characteristics of offenders, and acquired suicide capability
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ajiboye Isaac Oyeleke1 --- Department of Social Work / Social Development, South Africa Pius TangweTanga --- Department of Social Work / Social Development, South Africa Ajibola Abdulrahamon Ishola --- Department of Psychology, NigeriaThe study sought to predict the acquired capability for suicide from length of sentence and socio-demographic characteristics of offenders in a Nigerian prison population. Participants were 139 inmates (mean age = 33.67, SD = 9.24years; mean length of stay = 6.25 years, SD = 5.02years), males (95.7%), They... -
Psychological functioning and well-being among Ghanaian women: A brief report
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ethel Akpene Atefoe --- Department of Psychological Medicine and Mental Health, School of Medicine, Ghana Nuworza Kugbey --- Department of Family and Community Health, School of Public Health, GhanaThis study examined correlates of psychological well-being and distress among women in Accra, Ghana. A total of 200 women between 18 and 65 years completed measures of psychological well-being and distress. Independent t-test and One-way ANOVA F-test analysis of the... -
‘Inhliziyo ekhombisa uthando’: Exploring children’s conceptions of spirituality
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gugulethu M. Hlatshwayo --- School of Education, College of Humanities, South Africa Nithi Muthukrishna --- School of Education, College of Humanities, South Africa Melanie Martin --- School of Education, College of Humanities, South AfricaIn this study we explored young isiZulu children’s conceptions of spirituality. The children (n = 8; females = 5; male = 3) were nine to eleven years old and attended a primary school in KwaZulu-Natal, South Africa. They drew pictures... -
Authentic leadership, followership, and psychological capital as antecedents of work engagement
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marieta du Plessis --- Department of Industrial Psychology, South Africa Adré B. Boshoff --- Department of Industrial Psychology, South AfricaThe present study investigated authentic leadership, psychological capital, and followership behaviour influences on work engagement of employees. Respondents were 901 South African employees within the healthcare industry organisation (n = 647) and mining industry (n = 254). The employees completed... -
Workers in the luxury hospitality industry and motivation – the influence of gender, age and departments
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Ambra Hekman --- Hotel Management School, The Netherlands Conrad Lashley --- Hotel Management School, The NetherlandsThis research was conducted to find out whether demographics such as age, gender and working within different departments have an influence on the motivational factors of workers in the luxury hospitality industry. Questionnaires were filled out by 39 employees from... -
Women in leadership
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Helga Tweebeck --- Hotel Management School, The Netherlands Conrad Lashley --- Hotel Management School, The NetherlandsWomen in leadership positions play an important role for the hotel industry as well as for society. The Pompidou Hotel Group wants to increase the number of female employees in leading positions. The purpose of this research was to find... -
Population connectivity of an overexploited coastal fish, Argyrosomus coronus (Sciaenidae), in an ocean-warming hotspot
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Henriques --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa WM Potts --- Department of Ichthyology and Fisheries Science, South Africa CV Santos --- Faculdade de Ciências da Universidade Agostinho Neto (FCUAN), Angola WHH Sauer --- Department of Ichthyology and Fisheries Science, South Africa PW Shaw --- Department of Ichthyology and Fisheries Science, South AfricaThe West Coast dusky kob Argyrosomus coronus is a commercially exploited fish with a distribution confined to the Angola–Benguela Frontal Zone (ABFZ) of the southeastern Atlantic Ocean. A previous study revealed that during a recent period of local warming the... -
Survival estimates for the greater crested tern Thalasseus bergii in southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Payo-Payo --- Group of Ecology and Animal Demography (GEDA), Spain A Sanz-Aguilar --- Group of Ecology and Animal Demography (GEDA), Spain D Gaglio --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa RB Sherley --- Environment and Sustainability Institute, University of Exeter, United Kingdom TR Cook --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa R Altwegg --- Statistics in Ecology, Environment and Conservation, Department of Statistical Sciences, and African Climate and Development Initiative, South Africa PG Ryan --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South AfricaThe nominate race of the greater crested tern Thalasseus bergii breeds only along the coast of the Benguela region (west coast) of southern Africa, where its population is increasing, in contrast to other species of breeding seabirds in the region... -
Classification of marine bioregions on the east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T-C Livingstone --- Ezemvelo KZN Wildlife, South Africa JM Harris --- Ezemvelo KZN Wildlife, South Africa AT Lombard --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa AJ Smit --- Department of Biodiversity and Conservation Biology, South Africa DS Schoeman --- School of Science and Engineering, AustraliaMarine bioregional planning requires a meaningful classification and spatial delineation of the ocean environment using biological and physical characteristics. The relative inaccessibility of much of the ocean and the paucity of directly measured data spanning entire planning regions mean that... -
First insights on spatial and temporal distribution patterns of humpback whales in the breeding ground at Sainte Marie Channel, Madagascar
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Trudelle --- Bioacoustics Team, France J-B Charrassin --- Sorbonne Universités (UPMC, Univ. Paris 06) – CNRS-IRD-MNHN, LOCEAN-IPSL, France A Saloma --- Cétamada, Port Barachois, Madagascar S Pous --- Sorbonne Universités (UPMC, Univ. Paris 06) – CNRS-IRD-MNHN, LOCEAN-IPSL, France A Kretzschmar --- Biostatistiques et Processus Spatiaux (BioSP), France O Adam --- Bioacoustics Team, FranceThe Sainte Marie Channel on the northeast coast of Madagascar is an important breeding ground for humpback whales; the first observation of birth was documented there, yet it has never been investigated for phenology and habitat use of humpback whales... -
“On paper” and “having papers”: Zimbabwean migrant women’s experiences in accessing healthcare in Giyani, Limpopo province, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Tamuka Chekero --- Anthropology, School of African and Gender Studies, Anthropology and Linguistics, South Africa Fiona C. Ross --- Anthropology, School of African and Gender Studies, Anthropology and Linguistics, South AfricaSouth Africa is signatory to international protocols that secure migrant rights to healthcare. Its national health policy prohibits discrimination. Pregnant women and children under six years ostensibly enjoy access to free healthcare, irrespective of migration status. What is clear “on... -
Peatland substrates in northern KwaZulu-Natal: a study of the forming environments, properties and an approach towards classification
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Marvin Gabriel --- Faculty of Life Science, Germany Camelia Toader --- Faculty of Mathematics and Natural Sciences, Germany Franziska Faul --- Faculty of Earth and Environmental Sciences, Germany Niko Roßkopf --- Faculty of Life Science, Germany Piet-Louis Grundling --- Centre for Environmental Management, South Africa Cornelius Wilhelm van Huyssteen --- Department of Soil, Crop, and Climate Sciences, South Africa Jutta Zeitz --- Faculty of Life Science, GermanyPeatlands in South Africa are rare and fulfil important ecological functions but are threatened by degradation. Because of this peatlands have gained increasing attention from scientists during the last two decades. However, knowledge of the peatland substrates and the means... -
Assessment of noise-levels of generator-sets in seven cities of South-Southern Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Osagie Ibhadode --- Building Research Department, Nigeria I. T. Tenebe --- Department of Civil Engineering, Nigeria P. C. Emenike --- Department of Civil Engineering, Nigeria O. S. Adesina --- Dept. of Mathematical Science, Nigeria A. F. Okougha --- Science Laboratory Technology Research Department, Nigeria F. O. Aitanke --- Department of Production Engineering, NigeriaNoise pollution has been shown to be a global health hazard and this could be aggravated by the use of noise-emitting generators. Therefore, this study aims to determine the Sound Pressure Levels Sound Power Levels as well as Noisiness of... -
Alcohol use and problem drinking in South Africa: Results from a national-population-based survey 2014-2015
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- HIV/AIDS/STIs/and TB (HAST), South Africa Supa Pengpid --- Department of Research and Innovation, South AfricaThe aim of this study was to estimate the pattern of alcohol use among South African adults by their socio-demographic and health status indicators. We analysed data from a 2014–2015 South African national population-based survey which sampled 22 752 adults... -
Effective interactions: Communication and high levels of marital satisfaction
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kobus du Plooy --- Institute of Psychology & Well-being (IPW), School for Psychosocial Health, South Africa Ronél de Beer --- Community Psychosocial Health (COMPRES), School for Psychosocial Health, South AfricaOf all the significant relationships in the lives of human-beings, the marital relationship remains one of the most central and important to their well-being. For this rapid review the authors accessed four online databases (PsycINFO, PsychARTICLES, JSTOR Journals, and ScienceDirect)... -
Literacy programs efficacy for developing children’s early reading skills in familiar language in Zambia
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Francis K. Sampa --- Read To Succeed, Zambia Emma Ojanen --- Department of Psychology, Finland Jari Westerholm --- Research, Niilo Mäki Institute, Finland Ritva Ketonen --- Faculty of Educational Sciences, Finland Heikki Lyytinen --- Department of Psychology, FinlandThis study investigated the comparative efficacy of a phonics-based reading program and a language experience approach based literacy program to develop reading skills among Zambian early childhood school learners. The learners (n = 1 986; Grade 2 level; females =... -
Demographic correlates of normative beliefs about aggression among adolescents from low income communities in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Anita Padmanabhanunni --- Department of Psychology, South Africa Martin Gerhardt --- Department of Psychology, South AfricaThe present study investigated the association of age, gender, and family size with normative beliefs about aggression among South African adolescents from low-income areas. Adolescents (n = 229; mean age = 16 years; female = 61%) completed the Normative Beliefs... -
The continuing lack of ornithological research capacity in almost all of West Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Will Cresswell --- Centre for Biological Diversity, University of St Andrews, UKWest Africa has high bird diversity and is a crucial non-breeding area for over one-third of European breeding species, yet local capacity for ornithological research and so targeted bird conservation is perceived to be limited. I reviewed all the published... -
The wild bird trade and African parrots: past, present and future challenges
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Rowan O Martin --- Africa Programme, World Parrot Trust, Hayle, UK; and DST-NRF Centre of Excellence at the FitzPatrick Institute of African Ornithology, Department of Biological Sciences, South AfricaAfrican parrots are among the most traded of all birds listed on the appendices of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). Collapses in some wild populations due to trapping for the pet... -
Trends and themes in African ornithology
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Colin M Beale --- Department of Biology, UKOrnithology in Africa has a long history. I review trends in the ornithological literature since 1990 within the context of the 14th Pan-African Ornithological Congress. Using full text searches of papers on PubMed® and abstracts from main ornithological journals I... -
Sexing Cape Vulture Gyps coprotheres based on head morphometrics
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Margaret T Hirschauer --- VulPro NPC, Skeerpoort, South Africa Tapiwa Zimunya --- VulPro NPC, Skeerpoort, South Africa Kerri Wolter --- VulPro NPC, Skeerpoort, South Africa Ara Monadjem --- All Out Africa Research Unit, Department of Biological Sciences, SwazilandThe Cape Vulture Gyps coprotheres is considered sexually monomorphic in the literature, but visual differences in head shape between the sexes have been observed. Furthermore, head morphometrics of other Gyps species show statistically significant variation between the sexes. We show... -
Retrospective analysis of radiotherapy outcomes in breast cancer radiotherapy at a single institution
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: M Heunis --- Radiation Oncology, South Africa DC Lombe --- Radiation Oncology, South Africa M McCaul --- Biostatistics Unit, Division of Epidemiology and Biostatistics, Department of Global Health, South AfricaIntroduction: Breast cancer is the most commonly diagnosed cancer worldwide. With the challenges of cancer treatment in developing countries there is a need for a systematic and methodical approach to treatment in resource-limited settings. -
A retrospective study of stage IB node-negative cervical cancer treated with adjuvant radiation with standard pelvic versus central small pelvic fields
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Tlotlo B Ralefala --- Division of Radiation Oncology, South Africa Leon van Wijk --- Division of Radiation Oncology, South Africa Rakiya Saidu --- Department of Obstetrics & Gynaecology, College of Health Sciences, NigeriaObjective: To compare two types of postoperative radiation therapy (PORT) in early-stage, node-negative cervical cancer treated at Groote Schuur Hospital, Cape Town, South Africa. -
The effect of Holistic Planned Grazing™ on African rangelands: a case study from Zimbabwe
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Mike Peel --- Agricultural Research Council–Animal Production Unit, South Africa Marc Stalmans --- International Conservation Services, South AfricaHolistic Planned Grazing™ (HPG) is purported to have positive long-term effects on rangelands, enhancing ecosystem services. Given comparable environmental templates, but different management regimes, vegetation monitoring and landscape function analysis showed the Africa Center for Holistic Management (ACHM) at Dimbangombe... -
Difference equations of a memristor higher order hyperchaotic oscillator
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Karthikeyan Rajagopal --- Center for Nonlinear Dynamics, Ethiopia Anitha Karthikeyan --- Center for Nonlinear Dynamics, Ethiopia Prakash Duraisamy --- Center for Nonlinear Dynamics, EthiopiaA fifth-order chaotic circuit with two memristors is designed with reference to the Chua chaotic oscillation circuit and its corresponding dynamics model is established. The designed memristor hyperchaotic system (Bao, et al. 2011, 2180–2187) is analyzed with its spice model... -
Technological capabilities in the Indian Ayurveda medicine industry: Lessons for ‘industrialisation’ of alternative medicine in the post-WTO regime
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abha Arya --- Centre for Studies in Science Policy, India Saradindu Bhaduri --- Centre for Studies in Science Policy, IndiaThis paper makes an attempt to explore technological change as well as the motivations and pattern of technological capabilities in the Indian Ayurveda medicine industry. It seeks to investigate the different kinds of learning and technological innovations taking place in... -
Determinants of market participation and marketing channels in smallholder groundnut farming: A case of Mudzi district, Zimbabwe
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nelson Mango --- International Centre for Tropical Agriculture, Zimbabwe Clifton Makate --- International Centre for Tropical Agriculture, Zimbabwe Nicola Francesconi --- Technical Center for Agricultural and Rural Cooperation (CTA), The Netherlands Matthias Jager --- International Centre for Tropical Agriculture (CIAT), Colombia Mark Lundy --- International Centre for Tropical Agriculture (CIAT), ColombiaThis paper investigates the factors that are associated with market participation and choice of marketing channels by smallholder groundnut farmers in a semi-arid district of Zimbabwe. It contributes to the existing body of knowledge on groundnuts, especially the marketing aspect... -
Alternative method for the identification of critical nodes leading to voltage instability in a power system
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Isaiah G. Adebayo --- Department of Electrical Engineering, South Africa Adisa A. Jimoh --- Department of Electrical Engineering, South Africa Adedayo A. Yusuff --- Department of Electrical and Mining Engineering, South Africa Yanxia Sun --- Department of Electrical and Electronic Engineering Science, South AfricaThe introduction of new operation enhancement technologies plus increasing application of power electronics, coupled with the continuous increase in load demand, has increased the risk of power networks to voltage instability and susceptibility to voltage collapse. This frequent occurrence of... -
Prediction of primary salinity, sodicity and alkalinity in South African soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J Piet Nell --- Agricultural Research Council–Institute for Soil, South Africa Cornelius W van Huyssteen --- Department of Soil, Crop and Climate Science, South AfricaSeveral attempts have in the past been made to map the primary salinity, sodicity and alkalinity of South African soils. These have typically been based on personal experience and/or limited data and also failed to quantify the accuracy of prediction... -
Effect of soil- and foliar-applied nitrogen fertiliser on growth, yield and protein content of spring wheat (Triticum aestivum L.) under glasshouse conditions
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Mongezi M Mbangcolo --- Dohne Agricultural Development Institute, South Africa Petrus J Pieterse --- AgriSciences, Department of Agronomy, South AfricaFoliar application of nitrogen (N) can be essential in improving yield and grain protein content of wheat. Limestone ammonium nitrate and calcium nitrate solution were used as two N top-dressing treatments applied at three growth stages to evaluate their effect... -
Novel technique for reversing phrenic nerve paresis secondary to interscalene brachial plexus block
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Ian O Fleming --- Department of Anaesthesia and Pain Medicine, Australia Krishna Boddu --- Department of Anaesthesia and Pain Medicine, AustraliaInterscalene brachial plexus block is the reference analgesic technique for shoulder surgery. Phrenic nerve palsy with hemidiaphragmatic paresis is an established complication that results in symptomatic dyspnoea in a small number of subjects, and is poorly tolerated. Established management is... -
Extrapulmonary tuberculosis in the setting of HIV hyperendemicity at a tertiary hospital in Durban, South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: S Gounden --- Department of Internal Medicine, School of Clinical Medicine, South Africa R Perumal --- Department of Pulmonology and Critical Care, Centre for the AIDS Programme of Research in South Africa, South Africa NP Magula --- Department of Internal Medicine, School of Clinical Medicine, South AfricaBackground: South Africa has the highest burden of tuberculosis/human immunodeficiency virus (TB/HIV) co-infection in the world, with the province of KwaZulu-Natal representing the global epicentre of TB/HIV. While significant progress has been made to improve the diagnosis of pulmonary tuberculosis,... -
Through the lens of a herder: insights into landscape ethno-ecological knowledge on rangelands in Namaqualand
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Mogamat Igshaan Samuels --- Agricultural Research Council, South Africa Melvin Swarts --- Agricultural Research Council, South Africa Amy Schroeder --- Department of Biodiversity and Conservation Biology, South Africa Khululiwe Ntombela --- Agricultural Research Council, South Africa Clement Cupido --- Agricultural Research Council, South AfricaPastoral areas around the world, including South Africa, are resource poor and external development interventions to improve conditions have largely been unsuccessful. It has been advocated that the focus should shift from external stakeholders to local pastoralists by incorporating the... -
A theoretical framework for airport-centric developments: The cases of OR Tambo and Cape Town international airports in South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Masilonyane Mokhele --- Department of Town and Regional Planning, Faculty of Informatics and Design, South Africa Hermanus S. Geyer --- Department of Geography and Environmental Studies, Centre for Regional and Urban Innovation and Statistical Exploration (CRUISE), South AfricaWith a wealth of valuable literature, airports are a topical subject matter on the nexus between transportation technology advancements and land use. While acknowledging the insights of literature, it is argued that improvements are required on the theoretical framework for... -
Spirituality as a coping mechanism for family caregivers of persons with aphasia
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Khetsiwe Phumelele Masuku --- Department of Speech Pathology and Audiology, South Africa Katijah Khoza-Shangase --- Department of Speech Pathology and Audiology, South AfricaThis study sought to describe spirituality resourcing of family caregivers for people with aphasia (PWA). A purposive sample of 14 female family caregivers of PWA from a historically disadvantaged South African community were participants (married = 42%; age range 21... -
Soul searching on the wings of my wheels: Motorcyclists’ happiness
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Stefan Kruger --- WorkWell Research Unit, South AfricaThis study aimed to investigate how personal characteristics of motorcyclists influenced their affect and sense of happiness with their motorcycles. Data on personal characteristics, motorcycle characteristics, feelings about owning a motorcycle, discreet emotions, and overall happiness were collected from 367... -
Secondary Nothofagus dombeyi forests: site index curves and dominant height in the Coastal Range of south-central Chile
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Carlos Esse --- Escuela de Ciencias Ambientales, Nucleo de Estudios Ambientales, Chile Pablo J Donoso --- Instituto de Bosques y Sociedad, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Chile Victor Gerding --- Instituto de Bosques y Sociedad, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Chile Francisco Encina-Montoya --- Escuela de Ciencias Ambientales, Nucleo de Estudios Ambientales, Chile Celso Navarro --- Escuela de Ciencias Ambientales, Nucleo de Estudios Ambientales, ChileNothofagus dombeyi is distributed on very diverse sites in the temperate forests of Chile and Argentina. In Chile, studies on its dynamics and productivity in forests, where it is the dominant species, have been carried out mainly in the foothills... -
The age and growth of hottentot seabream Pachymetopon blochii before and after the South African linefish state of emergency in 2000
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MW Farthing --- Department of Ichthyology and Fisheries Science, South Africa AC Winkler --- Department of Ichthyology and Fisheries Science, South Africa K Anderson --- Department of Ichthyology and Fisheries Science, South Africa S Kerwath --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa C Wilke --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa WM Potts --- Department of Ichthyology and Fisheries Science, South AfricaThe hottentot seabream Pachymetopon blochii is a small-sized (maximum 2.67 kg) sparid endemic to southern Africa. It is an important target in South Africa's Western Cape traditional linefishery, particularly in the absence of more valuable pelagic species (such as Thyrsites... -
Programmatic mapping to determine the size and dynamics of sex work and injecting drug use in Mauritius
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Amita Pathack --- National AIDS Secretariat, Mauritius Ahmed Saumtally --- National AIDS Secretariat, Mauritius Sarah Soobhany --- National AIDS Secretariat, Mauritius Carly A Comins --- National AIDS Secretariat, Mauritius Said A H Kinoo --- National AIDS Secretariat, Mauritius Faran Emmanuel --- Centre for Global Public Health, CanadaHIV in Mauritius is in a concentrated phase. Most HIV infection is among key populations (KPs) including female sex workers (FSW), people who inject drugs (PWID), men who have sex with men (MSM), and transgender sex workers (TGSW). The objective... -
Late entry to HIV and AIDS care and treatment, Juba Teaching Hospital, Juba, South Sudan, 2013–2016
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Muki Johnson --- Immunization and Field Epidemiology Training Project, South Sudan Benjamin L Lemi --- Juba Teaching Hospital, South Sudan Hillary L Tonny --- Juba Teaching Hospital, South Sudan Adelina D David --- Juba Teaching Hospital, South Sudan Waqo Boru --- Field Epidemiology and Laboratory Training Program, Kenya James Ransom --- Field Epidemiology and Laboratory Training Program, KenyaLate diagnosis of HIV and enrolment to care are global public health challenges. This study aimed to characterise late HIV diagnoses and initiation of treatment among patients at Juba Teaching Hospital (JTH) in South Sudan. We conducted a retrospective review... -
Studies on the biology of Nile tilapia (Oreochromis niloticus) in Lake Victoria, Kenya: in light of intense fishing pressure
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: E Yongo --- Department of Fisheries and Aquatic Sciences, Kenya N Outa --- Department of Biological Sciences, Kenya K Kito --- Graduate School of Fisheries, Japan Y Matsushita --- Graduate School of Fisheries, JapanNile tilapia Oreochromis niloticus is now the most abundant and commercially important tilapiine in Lake Victoria. From the total of 1 512 fish sampled from commercial gill net fisheries during 2014 and 2015, 809 (54%) were males and 672 (44%)... -
Record of Blue tilapia Oreochromis aureus (Steindachner, 1864) in the Eerste River catchment, Western Cape province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SM Marr --- South African Institute for Aquatic Biodiversity, South Africa G Gouws --- South African Institute for Aquatic Biodiversity, South Africa S Avlijas --- Redpath Museum, Canada D Khosa --- South African Institute for Aquatic Biodiversity, South Africa ND Impson --- Scientific Services, South Africa M van der Westhuizen --- Conservation Services, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity, South AfricaOreochromis aureus was imported from Israel into South Africa in 1959 but data on its current status in South Africa are lacking. Genomic DNA was extracted and the COI gene amplified at the South African Institute for Aquatic Biodiversity. The... -
Evidence for diet partitioning among three coexisting native freshwater fishes in South Africa's Cape Fold Ecoregion
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JM Shelton --- Freshwater Research Centre (FRC), South Africa MS Bird --- Department of Zoology, South Africa SM Marr --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaThe partitioning of limited resources commonly explains how different species can coexist within the same ecological community. In this 2010 study, the diets of three coexisting freshwater fishes (Cape galaxias Galaxias zebratus, n = 27; Cape kurper Sandelia capensis, n... -
Experience of a recreational diabetic day by a non-governmental organisation, T1 Diams, in Mauritius
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Pravesh Kumar Guness --- Department of Therapeutic Education, T1 Diams --- Department of Therapeutic Education,Background: T1 Diams, a non-profit organisation on the island of Mauritius, has been working on the implementation of therapeutic and educational activities for its members. It regularly organises a recreational diabetic day (‘Enjoy life’ or ‘T1 Diams en Balade’). -
The investment return puzzle on the Johannesburg Stock Exchange
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Pravin Semnarayan --- Gordon Institute of Business Science, University of Pretoria, South Africa Michael Ward --- Gordon Institute of Business Science, University of Pretoria, South Africa Chris Muller --- Gordon Institute of Business Science, University of Pretoria, South AfricaFirms that invest into positive net present value projects should outperform firms that do not invest. Surprisingly, several studies on United States data have found a negative relationship between capital investment and subsequent shareholder return. There are conflicting explanations for... -
Networking dimensions and performance of event management ventures in Kenya
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Jacqueline Cheptepkeny Korir --- School of Tourism Hospitality and Events Management, KenyaThe role of networking in the sharing of knowledge and information is well documented. What is not clear, however, are the facets of networks that best drive firm performance, and whether or not the nature of business is a factor... -
Presence and absence: shops as traces of hopes in apartheid Namibia
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Gregor Dobler --- Institute for Social and Cultural Anthropology, Albert-Ludwigs University of Freiburg, Freiburg im Breisgau, GermanyThis photo essay shows images of closed-down shops in rural northern Namibia, businesses that flourished in the context of an apartheid homeland but had to shut down when democracy opened up the area to competition and urbanisation. The photographs are... -
A reflection on a visual ethnography of Namibia
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Rosa Persendt --- Contemporary Social Issues Unit, Office of the Pro-Vice-Chancellor (Academic Affairs), NamibiaIn this essay, Rosa Persendt reflects on Gregor Dobler's photo essay “Presence and Absence: Shops as Traces of Hopes in Apartheid Namibia” which deals with ethnographic photos taken of empty cucu [trading stores] opened in the early 1950s and the... -
Emotional intelligence and personal growth initiative effects on subjective happiness among university students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nuworza Kugbey --- Department of Family and Community Health, School of Public Health, Ghana Ethel Akpene Atefoe --- Department of Psychological Medicine and Mental Health, School of Medicine, Ghana Nkansah Anakwah --- Department of Criminal Law and Criminology, The Netherlands Kingsley Nyarko --- Department of Teacher Education, Ghana Samuel Atindanbila --- Department of Psychology, GhanaThis study examined emotional intelligence and personal growth initiative influences on the level of subjective happiness among university students in Ghana. Two hundred and sixty undergraduate students were participants (female = 69.8%; mean age = 21.72 years, SD = 3.61... -
Trauma event autobiographies: An exploratory multiple case study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Corné Engelbrecht --- Department of Psychology, South Africa Maria Papaikonomou --- Department of Psychology, South AfricaThis multiple case study explored trauma event memories of three individuals to characterise underlying meanings important for their recovery. The three participants were women in the age range of 43 to 54 years old, who shared their own memories of... -
Concurrent tobacco use and risky drinking in South Africa: Results from the South African National Health and Nutrition Examination Survey
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nancy Phaswana-Mafuya --- Deputy Vice Chancellor Research and Innovation Office, South Africa Karl Peltzer --- Deputy Vice Chancellor Research and Innovation Office, South Africa Supa Pengpid --- ASEAN Institute for Health Development, ThailandThe aim of this study was to examine socio-demographic and psychosocial correlates of concurrent tobacco use and risky drinking. We analysed data from the cross-sectional South African National Health and Nutrition Examination Survey (SANHANES-1) 2011–2012. The sample included 14 764... -
Tiller population dynamics in eight cultivars of elephant grass during undisturbed growth
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: José A Rueda --- Licenciatura en Zootecnia, Mexico Eusebio Ortega-Jiménez --- Colegio de Postgraduados, Mexico Javier F Enríquez-Quiroz --- Campo Experimental “La Posta”, Mexico Rogelio E Palacios-Torres --- Licenciatura en Zootecnia, Mexico Sergio Ramírez-Ordoñes --- Licenciatura en Zootecnia, MexicoThe aim of the study was to assess tiller population dynamics of aerial and basal tillers in eight cultivars of Pennisetum purpureum (Schumach.), syn. Cenchrus purpureus (Schumach.) Morrone, in a warm humid climate in Veracruz, Mexico. This is a pioneer... -
Seasonal changes in pasture biomass and grazing behaviour of cattle in the Guinea Savanna agroecological zone of Ghana
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Maxwell Akapali --- Department of Animal Science, Ghana Terry Ansah --- Department of Animal Science, Ghana Ibn Iddriss Abdul-Rahman --- Department of Animal Science, Ghana Benjamin Alenyorege --- Department of Animal Science, Ghana Bernard N Baatuuwie --- Department of Forestry and Forest Resources Management, GhanaSpatial and temporal availability of pasture vegetation and cattle grazing behaviour in three seasons (intermediate season [IM], peak season [PS] and dry season [DS]) in the Guinea Savanna agroecological zone of Ghana was examined. The frequency of occurrence of three... -
Risk factors associated with nosocomial infections in the Neonatal Intensive Care Unit at Mahatma Gandhi Memorial hospital between 2014 and 2015
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Sharita Rameshwarnath --- Discipline of Public Health Medicine, School of Nursing and Public Health, South Africa Saloshni Naidoo --- Discipline of Public Health Medicine, School of Nursing and Public Health, South AfricaBackground: Nosocomial infections are one of the main causes of neonatal morbidity and mortality in low- and middle-income countries. The neonatal intensive care unit is a suitable environment for disseminating infections. The aim of this study was to identify risk... -
Antimicrobial resistance surveillance in the South African public sector
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Olga Perovic --- Centre for Healthcare-Associated Infections (HAIs), Husna Ismail --- Centre for Healthcare-Associated Infections (HAIs), Erika Van Schalkwyk --- Centre for Healthcare-Associated Infections (HAIs),Electronic surveillance for antimicrobial resistance was established in 2013 for public sector laboratories and released annually. This article reports susceptibility data on ESKAPE pathogens for 2016. -
Antimicrobial resistance surveillance in the South African private sector report for 2016
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Olga Perovic --- Centre for Healthcare-Associated Infections (HAIs), Antimicrobial Resistance (AMR) and Mycoses, Husna Ismail --- Centre for Healthcare-Associated Infections (HAIs), Antimicrobial Resistance (AMR) and Mycoses, Erika Van Schalkwyk --- Centre for Healthcare-Associated Infections (HAIs), Antimicrobial Resistance (AMR) and Mycoses, Warren Lowman --- Department of Clinical Microbiology and Infectious Diseases, School of Pathology, Elizabeth Prentice --- Ampath Microbiology National Reference Laboratory, Marthinus Senekal --- Pathcare Pathology Group Reference Laboratory, Chetna N Govind --- Department of Clinical Microbiology, South AfricaAim: The relevance of surveillance for antimicrobial resistance is increasingly recognised in the light of a global action plan to combat resistance. This report presents antimicrobial susceptibility testing on ESKAPE pathogens from private sector laboratories in South Africa for 2016. -
Feeding ecology of Lilian’s Lovebird Agapornis lilianae in Liwonde National Park, Malawi
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tiwonge I Mzumara --- School of Life Sciences, South Africa Mike R Perrin --- School of Life Sciences, South Africa Colleen T Downs --- School of Life Sciences, South AfricaLilian's Lovebird Agapornis lilianae is a small, near-threatened parrot resident in mopane Colophospermum mopane woodlands. We investigated its diet and foraging behaviour in Liwonde National Park, Malawi. We expected that Lilian's Lovebirds would show little specialisation for a particular food... -
Temporal changes in prey composition and biomass delivery to African Crowned Eagle nestlings in urban areas of KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tim van der Meer --- School of Life Sciences, South Africa Shane McPherson --- School of Life Sciences, South Africa Colleen Downs --- School of Life Sciences, South AfricaGlobally urban areas are expanding rapidly and this usually has negative effects on biodiversity. Despite this, some species manage to persist in urban areas, as is the case with African Crowned Eagles Stephanoaetus coronatus in KwaZulu-Natal, South Africa. As relatively... -
Hunting flight speeds of five southern African raptors
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Lorinda A Hart --- School of Life Sciences, South Africa Erin P Wreford --- School of Life Sciences, South Africa Mark Brown --- School of Life Sciences, South Africa Colleen T Downs --- School of Life Sciences, South AfricaThe flight speeds of hunting falconry birds were determined using global positioning system data loggers. Until now, the hunting flight speed of African raptors has not been directly measured. We predicted that hunting flight speeds would differ between species and... -
The impact of reference-day risk on beta estimation and a proposed solution
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Keshav Sahadev --- Gordon Institute of Business Science, South Africa Michael Ward --- Gordon Institute of Business Science, South Africa Chris Muller --- Gordon Institute of Business Science, South AfricaThe ability to accurately estimate systematic risk (or beta) when reference-day risk is considered, is an ineluctable requirement for all applications of the capital asset pricing model (CAPM). -
Thromboelastography in mild, chronic liver disease: challenging conventional coagulation tests preceding liver biopsy
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: LR Veronese --- Department of Anaesthesia and Perioperative Medicine, South Africa M Miller --- Department of Anaesthesia and Perioperative Medicine, South Africa WC Spearman --- Division of Hepatology, Department of Medicine, South AfricaPatients presenting for liver biopsy may have a deficiency of the synthetic function of the liver. They commonly undergo testing of their INR, which is used to decide if there may be a bleeding risk and if that needs to... -
Biomarkers of toxicity in Clarias gariepinus exposed to sublethal concentrations of polycyclic aromatic hydrocarbons
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TO Sogbanmu --- Ecotoxicology and Conservation Unit, Department of Zoology, Faculty of Science, Nigeria AO Osibona --- Department of Marine Sciences, Faculty of Science, Nigeria OA Oguntunde --- Department of Anatomic and Molecular Pathology, Faculty of Basic Medical Sciences, Nigeria AA Otitoloju --- Ecotoxicology and Conservation Unit, Department of Zoology, Faculty of Science, NigeriaPhysiological, biochemical and histological indices in Clarias gariepinus broodstock, and teratogenic indices in embryos exposed to sublethal concentrations of naphthalene, phenanthrene and pyrene were investigated in 2014 using a static-renewal bioassay protocol. Phenanthrene (1.41 mg l−1) was the most toxic,... -
Possible influences of a macroalgal bloom in eelgrass beds on fish assemblages in the lower Knysna Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Pollard --- South African Environmental Observation Network, South Africa AK Whitfield --- South African Institute for Aquatic Biodiversity, South Africa AN Hodgson --- Department of Zoology & Entomology, South AfricaThe occurrence of a macroalgal bloom at eelgrass (Zostera capensis) sampling sites in the summer of 2014/2015 provided an opportunity to use underwater video cameras to monitor the possible effects of environmental change on fish diversity and abundance in the... -
Where are we with whole regolith pedology? A comparative study from Brazil
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Jérôme Juilleret --- Department of Environmental Research and Innovation, Luxembourg Antonio C de Azevedo --- Department of Soil Science, Brazil Roseclenia A Santos --- Department of Soil Science, Brazil Jean CB dos Santos --- Department of Agronomy, Brazil Fabricio de A Pedron --- Department of Soil Science, Brazil Stefaan Dondeyne --- Department of Earth and Environmental Sciences, BelgiumAn integrated knowledge of the soil and its deeper substratum is required when dealing with environmental issues and Critical Zone research. Though the lower boundary for classifying soils is set at 200 cm in both Soil Taxonomy (ST) and the... -
Knowledge, attitudes and practice of healthcare providers regarding contraceptive use in adolescence in Mahalapye, Botswana
Item type: Journal Article • Journal: South African Family Practice • Authors: ST Tshitenge --- Family Medicine and PH, Botswana K Nlisi --- Botswana Ministry of Health and Welfare, Botswana V Setlhare --- Family Medicine and PH, Botswana R Ogundipe --- Family Medicine and PH, BotswanaIntroduction: Adolescent pregnancy is a global public health problem, for which healthcare providers (HCPs) play a critical role to prevent unintended pregnancy. This study investigated the knowledge, attitude and practice (KAP) of HCPs towards the use of contraceptives in adolescents. -
Association between adherence to anti-diabetic therapy and adverse maternal and perinatal outcomes in diabetes in pregnancy
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Doreen Macherera Mukona --- Department of Nursing Science, Zimbabwe Stephen Peter Munjanja --- Department of Obstetrics and Gynecology, Zimbabwe Mathilda Zvinavashe --- Department of Nursing Science, Zimbabwe Babil Stray-Pederson --- Institute of Clinical Medicine, NorwayObjectives: To analyse the association between adherence to anti-diabetic therapy (diet, physical activity and medications) and perinatal outcomes. -
A content analysis of online news media reporting on the human papillomavirus vaccination programme in South Africa
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Sharon Attipoe-Dorcoo --- Health Science Center, School of Public Health, University of Texas, USA Vedantha Singh --- Cancer Research Initiative, University of Cape Town, South Africa Jennifer Moodley --- Cancer Research Initiative, University of Cape Town, South AfricaBackground: Cervical cancer is the leading cause of cancer-related deaths among females in South Africa. In 2014 South Africa launched a national human papillomavirus (HPV) vaccination programme for grade 4 girls attending public schools. Approximately 49% of South Africans have... -
A retrospective analysis of the effect of planning tumour volume on survival in cervical carcinoma
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Ilze Fourie --- Division of Radiation Oncology, Stellenbosch University, Tygerberg Academic Hospital, South Africa Hannah M Simonds --- Division of Radiation Oncology, Stellenbosch University, Tygerberg Academic Hospital, South AfricaIntroduction: Locally advanced stages of invasive cervical cancer (ICC) are associated with poor outcomes; factors influencing survival include increased tumour volume. In resource-constrained settings access to diagnostic imaging with CT and MRI is limited. Alternative methods of establishing tumour volume... -
Career-related dispositional factors in relation to retention within the retail sector: An exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nadia Ferreira --- Department of Human Resource Management, South Africa Ingrid L. Potgieter --- Department of Human Resource Management, South AfricaThe study aimed to explore the extent to which employees’ organisational commitment and career adaptability predicted employee retention factors in the South African retail sector; taking employee demographics into account. A sample of 224 early to mid-career permanent retail employees... -
Self-efficacy and its relationship with satisfaction with life and happiness among university students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yolande van Zyl --- Department of Human Resources Management, Faculty of Management Sciences, South Africa Manilall Dhurup --- Department of Human Resources Management, Faculty of Management Sciences, South AfricaThis study set out to examine the relationship between self-efficacy and satisfaction with life and happiness among university students in South Africa. The sample comprised 334 students (female = 222, male = 112, black = 96%, mean age = 23... -
“Treatment is not yet necessary”: delays in seeking access to HIV treatment in Uganda and Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rachel Kawuma --- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene & Tropical Medicine (MRC/UVRI and LSHTM), Uganda Janet Seeley --- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene & Tropical Medicine (MRC/UVRI and LSHTM), Uganda Zivai Mupambireyi --- Centre for Sexual Health and HIV/AIDS Research, Zimbabwe Frances Cowan --- International Public Health Department, UK Sarah Bernays --- School of Public Health, Australia --- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene & Tropical Medicine (MRC/UVRI and LSHTM), UgandaWe examined the logic that individuals use to account for delaying HIV testing and/or initiating HIV treatment. Our qualitative study, situated within the REALITY trial (Reduction of EArly mortaLITY in HIV infected adults and children starting antiretroviral therapy), was conducted... -
Mother–baby dyads enrolled in PMTCT care in western Kenya: characteristics and implications for ART programmes
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Edith A Ogalo --- Moi Teaching and Referral Hospital, Kenya Japheth O Adina --- Academic Model Providing Access to Health Care (AMPATH)-USAID, Kenya Hesbon Ooko --- Academic Model Providing Access to Health Care (AMPATH)-USAID, Kenya James Batuka --- US Agency for International Development (USAID), Kenya Sylvester Kimaiyo --- Academic Model Providing Access to Health Care (AMPATH)-USAID, KenyaThe objective of the study was to establish the mother–baby pair characteristics that contribute to vertical transmission of HIV and elucidate on remediation. We assessed for factors increasing the odds of HIV transmission in children born to HIV-infected mothers in... -
Analysing the diffusion and adoption of renewable energy technologies in Africa: The functions of innovation systems perspective
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Aschalew Demeke Tigabu --- African Centre for Technology Studies (ACTS), KenyaRenewable energy technologies have increasingly been promoted to address energy poverty and environmental sustainability challenges in Africa. Yet, their diffusion and uptake remain marginal. The focus of renewable energy technology diffusion research in Africa has largely been on identifying technological,... -
Descriptive analysis of building indigenous low-carbon innovation capability in Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Yusuf Opeyemi Akinwale --- School of Economics, Faculty of Economic Sciences and IT, South AfricaThe issue of a low-carbon energy system is contentious especially in developing countries as the world is transiting from a fossil fuel based economy to a low-carbon economy. A new development path of low-carbon energy is being sought so as... -
Building low-carbon energy innovation systems in Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Radhika Perrot --- Independent researcher, South Africa Maruf Sanni --- National Centre for Technology Management, NigeriaThe objective of this special issue is to bring together research on low-carbon innovation in the African context. The aim is to assess and compare various cases of low-carbon energy development in Africa in an effort to understand the underlying... -
In Search of Poem-Maps of the Swahili Seas: Three Sea Poems by Haji Gora Haji
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Yvonne Adhiambo Owuor --- Independent Scholar, KenyaTo what extent can a text borne in memory give texture, perspectives, meaning, dimensionality and sense to a place? Where is the locus of meaning in such a case? Can this locus be mapped? Questions about Swahili navigational poetry (poem-maps)... -
Of Oceanic Crossings and Discordant Cultural Adaptations in Post-apartheid Neo-slave Narration
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Serah Namulisa Kasembeli --- English Studies Department, South AfricaThis paper adopts the sea as a productive metaphor to interrogate colonial and apartheid constructions that silence African Indian Ocean cultures. It analyses Therese Benadé’s debut novel, Kites of Good Fortune (2004) to show that whereas the novel depicts the... -
An analytical-numerical approach in the calculation of photovoltaic module parameters operating under partial shaded conditions
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abdouramani Dadjé --- Department of Renewable Energy, National Advanced School of Engineering of Maroua, Cameroon Noël Djongyang --- Department of Renewable Energy, National Advanced School of Engineering of Maroua, Cameroon Réné Tchinda --- LISIE, Fotso Victor University Institute of Technology, CameroonThe aim of this work is to determine the parameters and characteristics of a PV module in case of partial shading conditions. Both numerical and analytical methods are used in order to attain this objective. The iterative method namely Newton-Raphson... -
Soil organic carbon storage in a tropical freshwater wetland: the influence of vegetation type
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: David Were --- , Ethiopia Frank Kansiime --- , Uganda Tadesse Fetahi --- , Ethiopia Thomas Hein --- , AustriaThe impact of different vegetation communities on soil organic carbon (SOC) in a tropical freshwater wetland in Uganda was investigated. SOC content, density and storage potential were determined under three different dominant vegetation communities: Cyperus papyrus L., Typha latifolia L... -
Whole-tree sap flow responses to soil water and weather variables for Pinus radiata and three indigenous species in a southern afrotemperate forest region
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tatenda Mapeto --- School of Natural Resources Management, Nelson Mandela University, George Campus, South Africa Josua Louw --- School of Natural Resources Management, Nelson Mandela University, George Campus, South Africa Mark Gush --- Council for Scientific and Industrial Research, South Africa Jeanette Pauw --- School of Natural Resources Management, Nelson Mandela University, George Campus, South AfricaIn a water-scarce country such as South Africa, timber and fibre production often stands in conflict with catchment water yields. The optimal provision of both is sought. Forest hydrological experiments improve our understanding of the soil–plant–atmosphere continuum and facilitate the... -
Acute respiratory distress syndrome following a biphasic anaphylactic reaction to morphine: a case report and review of the literature
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: KU Tobi --- Department of Surgery and Anaesthesiology, University of Namibia, Namibia G Kirenga --- Department of Anaesthesiology, University of Rwanda, Rwanda S Muhmuza --- Department of Anaesthesiology, King Faisal Hospital, Rwanda P Ruhato --- Department of Anaesthesiology, University of Rwanda, RwandaBackground: Biphasic anaphylactic reaction is a variant of the usual and more commonly seen monophasic anaphylactic reaction. However, recently it has been observed that biphasic anaphylactic reaction may not be as uncommon as previously believed. Furthermore, serious and life-threatening complications... -
Towards a core curriculum for civic engagement on appropriate technology: Characterizing, optimizing and mobilizing youth community service learning
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Alexia J. Wensing --- Social Psychology, Canada Enrico J. Wensing --- Teachers College, Columbia University, USA Michelle Virgo --- Independent Scholar Practitioner, UKYoung learners represent a source of renewable energy that could benefit communities worldwide. While there are a growing number of isolated case examples of successful community engagement projects led by youth and their educators from around the world, a gap... -
A comparative study of hatchery waste meal with blood meal using laying Japanese quail
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Adetoyese Adeyemo --- Discipline of Animal and Poultry Science, South Africa Theodora Rani --- Discipline of Animal and Poultry Science, South Africa Adeyinka Odunsi --- Department of Animal Production and Health, Faculty of Agricultural Science, NigeriaProduction cost is a major challenge in the poultry industry of developing countries. It has compelled researchers to explore recycling animal protein sources as it has emerged the most expensive feed ingredient. Hatchery waste is readily and commonly available as... -
Interactions of grazing and rainfall on vegetation at Grootfontein in the eastern Karoo
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Justin CO du Toit --- Pasture Research, Grootfontein Agricultural Development Institute, South Africa Tshililo Ramaswiela --- South African Environmental Observation Network, South Africa Marco J Pauw --- South African Environmental Observation Network, South Africa Tim G O’Connor --- South African Environmental Observation Network, South AfricaRainfall and grazing are primary drivers of vegetation composition in the Nama-Karoo. Increased rainfall increases grassiness, to where Nama-Karoo transitions to grassland. Severe grazing treatments (e.g. continuous or summer-only) increase abundance of grazing-tolerant dwarf shrubs and annual grasses, and decrease... -
Long-term changes in land use, land cover and vegetation in the Karoo drylands of South Africa: implications for degradation monitoring
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M Timm Hoffman --- Department of Biological Sciences, South Africa Andrew Skowno --- South African National Biodiversity Institute, South Africa Wesley Bell --- Department of Biological Sciences, South Africa Samukele Mashele --- Department of Biological Sciences, South AfricaWe used several large data sets at a range of temporal and spatial scales to document the land-use/land-cover change (LULCC) dynamics of the semi-arid Succulent Karoo and Nama-Karoo biomes of South Africa. More than 95% of the Karoo is comprised... -
Vegetation responses to seasonal weather conditions and decreasing grazing pressure in the arid Succulent Karoo of South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Ute Schmiedel --- Institute for Plant Science and Microbiology, Germany Jens Oldeland --- Institute for Plant Science and Microbiology, GermanyThe Succulent Karoo biome is a renowned centre of biodiversity and endemism in the arid winter rainfall region of South Africa that is threatened by climate change. On 20 permanently marked plots within a biodiversity observatory, species richness and cover... -
Before the Anthropocene: human pasts in Karoo landscapes
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: David Morris --- McGregor Museum, South AfricaKaroo landscapes today are replete with evidence of recent human impacts. The Karoo is relatively pristine in the South African imaginary, but it is not untouched. Social and historic change in the last 300 years has been dramatic. The article... -
Reflections on the Karoo Special Issue: towards an interdisciplinary research agenda for South Africa’s drylands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M Timm Hoffman --- Plant Conservation Unit, Department of Biological Sciences, South Africa Cherryl Walker --- Department of Sociology and Social Anthropology, South Africa Joh R Henschel --- South African Environmental Observation Network (SAEON): Arid Lands Node, South AfricaWe begin this essay with reflections on major research themes highlighted by the Karoo Special Issue (KSI). These include concerns over land-use change, long-term monitoring, climate change, governance and the need for more interdisciplinary research. We also identify some of... -
Yield of hydroponically grown tomato (Solanum lycopersicon) as affected by different particle sizes of sawdust
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Maboloke A Maatjie --- Department of Agriculture and Animal Health, South Africa Martin M Maboko --- Agricultural Research Council–Vegetable and Ornamental Plants, South Africa David M Modise --- Department of Agriculture and Animal Health, South AfricaThe particle size of a growing medium is one of the most important aspects in growing crops hydroponically. A study was conducted to determine the effect of particle size of sawdust as a substrate on tomato yield, in a non-temperature-controlled... -
Comparative skull osteology and preliminary systematic revision of the African lizard genus Heliobolus (Squamata: Lacertidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Mirjam Dubke --- , Germany Christy A. Hipsley --- , Germany Johannes Müller --- , GermanyThe anatomy of African lacertid lizards (Lacertidae: Eremiadini) is poorly known, which has hindered a better understanding of their evolutionary relationships. This applies especially to the East African clade, which includes the genera Nucras, Latastia, Philochortus, Pseuderemias and Heliobolus. We... -
Multisectoral (in)action: towards effective mainstreaming of HIV in public sector departments in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Pinky Mahlangu --- Gender and Health Research Unit, South African Medical Research Council, South Africa Jo Vearey --- African Centre for Migration & Society, School of Social Sciences, South Africa Jane Goudge --- School of Public Health, Faculty of Health Sciences, South AfricaWhilst progress has been made, evidence of effective approaches to improve action on addressing the social and structural drivers of the HIV epidemic remains a priority, to meet the 2030 sustainable development agenda, and to achieve key HIV targets, including... -
“We are like bubblegum”: underground narratives of tuberculosis among South African miners
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Mutsawashe Mutendi --- Anthropology, School of African and Gender Studies, Anthropology and Linguistics, South Africa Helen Macdonald --- Anthropology, School of African and Gender Studies, Anthropology and Linguistics, South AfricaMiners working on South African mines suffer from the highest rate of tuberculosis (TB) in the world. The prevalence of tuberculosis among miners is four to seven times higher than for the general population of South Africa, a country with... -
Globalised tuberculosis control in local worlds
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Justin Dixon --- Department of Global Health and Development, United Kingdom Helen Macdonald --- School of African and Gender Studies, Anthropology and Linguistics, South AfricaDespite a steady global decline in the incidence of tuberculosis (TB), progress towards health targets has been slow and a crisis of drug-resistant strains of TB continues unabated. The United Nations high-level meeting on TB in September 2018 resulted in... -
Correlates of Post-Traumatic Stress Disorder diagnosis among rape survivors: Results and implications of a South African study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nombulelo Veronica Sepeng --- Department of Nursing Science, Faculty of Health Sciences, Prinshof Campus, School of Health Care Sciences, South Africa Lufuno Makhado --- Department of Nursing Science, Faculty of Health Sciences, South AfricaThis study aimed to describe factors associated with the experience of Post-Traumatic Stress Disorder (PTSD) among rape survivors. Participants were female survivors attending a treatment centre in South Africa (black = 85%, coloured = 15%; age range = 18 to... -
Environmental influence on phytoplankton communities in the northern Benguela ecosystem
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Barlow --- , South Africa T Lamont --- , South Africa D Louw --- , Namibia M-J Gibberd --- , South Africa R Airs --- , United Kingdom A van der Plas --- , NamibiaAn investigation of surface phytoplankton communities was undertaken on the shelf of the northern Benguela upwelling ecosystem during austral autumn (May) and spring (September), along latitudinal transects at 20° S and 23° S, from 2 to 70 nautical miles offshore,... -
Age, growth and natural mortality of blue jack mackerel Trachurus picturatus (Carangidae) from the Canary Islands, Spain (NW Africa)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Jurado-Ruzafa --- , Spain MTG Santamaría --- , SpainStatus assessment of exploited fish populations is a general requirement to ensure sustainability of fisheries in both global and local contexts. The blue jack mackerel Trachurus picturatus (Bowdich, 1825) remains unassessed in a data-limited fishery in the eastern central Atlantic,... -
An Evaluation of the Implementation of the Arabuko-Sokoke Forest Reserve Co-management Approach in Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Felix Lamech Mogambi Ming’ate --- Department of Environmental Studies and Community Development, KenyaSeveral studies have been conducted on the implementation of co-management of forests. There is a significant gap in the current literature regarding the extent to which the implementation of co-management regimes is having an effect. The purpose of this paper... -
Cropping System Intensification as a Management Method Against Vectors of Viruses Causing Maize Lethal Necrosis Disease in Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: E. S. Namikoye --- Department of Agricultural Science and Technology, G. M. Kariuki --- Department of Agricultural Science and Technology, Z. M. Kinyua --- Kenya Agricultural and Livestock Research Organization, M. W. Githendu --- Department of Agricultural Science and Technology, M. Kasina --- Kenya Agricultural and Livestock Research Organization,Maize Lethal Necrosis Disease (MLND) has emerged as a great threat to maize production in East Africa. It is caused by a synergistic infection of maize by sugarcane mosaic virus (SCMV) and maize chlorotic mottle virus (MCMV). This study was... -
Quantification of sorgoleone in sorghum accessions from eight southern African countries
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Handsen Tibugari --- Department of Agronomy, Faculty of Science and Agriculture, South Africa Cornelius Chiduza --- Department of Agronomy, Faculty of Science and Agriculture, South Africa Arnold B Mashingaidze --- Department of Crop Science and Post-Harvest Technology, School of Agricultural Sciences and Technology, Zimbabwe Stanford Mabasa --- Department of Crop Science, Faculty of Agriculture, ZimbabweAllelopathic effects of sorghum (Sorghum bicolor (L.) Moench) can ease weed pressure and improve grain yields if cultivars capable of producing high levels of natural chemicals effective in suppressing weeds of economic importance are identified. Three hundred and fifty three... -
An EnSpm interspersed repeat identified in Triticum aestivum and implicated in resistance to Diuraphis noxia
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Anandi Bierman --- Division of Bioinformatics, South Africa Anna-Maria Botha --- Department of Genetics, South AfricaDiuraphis noxia Kurdjumov, 1913 (Hemiptera: Aphididae), commonly known as the Russian wheat aphid, is a devastating pest of wheat and barley. Although fourteen sources of resistance (Dn genes) have been identified to date, none have been cloned. In this study... -
Emergency Centre-based paediatric procedural sedation: current practice and challenges in Cape Town
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A Burger --- Department of Anaesthesia and Perioperative Medicine, South Africa PW Hodkinson --- Department of Surgery, Division of Emergency Medicine, South Africa LA Wallis --- Joint Division of Emergency Medicine, South AfricaBackground: The aims and objectives of this survey of the current practice of doctors working in Emergency Centres (ECs) in the Cape Town metropole was to assess clinical practice and attempt to identify obstacles to the practice of paediatric procedural... -
Status of globally threatened birds of Sapo National Park, Liberia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Benedictus Freeman --- Biodiversity Institute, University of Kansas, USA Filibus Danjuma Dami --- AP Leventis Ornithological Research Institute, University of Jos, Nigeria Mary Molokwu-Odozi --- Fauna & Flora International, LiberiaSapo National Park was the first established and is the largest national park in Liberia and contains the secondlargest area of primary tropical rainforest in West Africa. However, little is known about the distribution, population density, and ecology of threatened... -
Densities and population sizes of raptors in Uganda’s conservation areas
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Derek Pomeroy --- Department of Zoology, Uganda Micheal Kibuule --- Department of Zoology, Uganda Dianah Nalwanga --- NatureUganda, Uganda George Kaphu --- Uganda Wildlife Authority, Uganda Michael Opige --- NatureUganda, Uganda Phil Shaw --- School of Biology, UKProjected increases in Africa's human population over the next 40 years point to further, large-scale conversion of natural habitats into farmland, with far-reaching consequences for raptor species, some of which are now largely restricted to protected areas (PAs). To assess... -
Home-range size and movement patterns of Hooded Vultures Necrosyrtes monachus in southern Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Richard P Reading --- Raptors Botswana, Botswana James Bradley --- Raptors Botswana, Botswana Peter Hancock --- Raptors Botswana, Botswana Rebecca Garbett --- Raptors Botswana, Botswana Moses Selebatso --- Raptors Botswana, Botswana Glyn Maude --- Raptors Botswana, BotswanaHooded Vulture Necrosyrtes monachus populations have declined dramatically in recent years, but we know little about their ecology. We radio-tagged four vultures in northern Botswana to gather data on animal movement and home-range patterns. Hooded Vultures were primarily sedentary at... -
Raptors breeding on weaver nests in trees and on man-made structures
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: H Dieter Oschadleus --- School of Life Sciences, South AfricaSeveral raptor species nest on top of large weaver nests. These weaver nests are usually sited in trees, but 11.7% of Red-billed Buffalo-Weaver Bubalornis niger and 25.7% of Sociable Weaver Philetairus socius nests occur on man-made structures. In an extensive... -
Montane forest birds in winter: do they regularly move to lower altitudes? Observations from the Eastern Cape, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adrian JFK Craig --- Department of Zoology and Entomology, South Africa Patrick E Hulley --- Department of Zoology and Entomology, South AfricaSeasonal altitudinal migration to lower altitudes including the coast has been ascribed to a number of forest birds, of which 14 species occur at Fort Fordyce Reserve in the Eastern Cape, South Africa. Based on our observations and ringing at... -
Conflict management and prevention under the African Peace and Security Architecture (APSA) of the African Union
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Sophie Desmidt --- Policy Officer, Security and Resilience programme, Bruce LamontUnder the umbrella of the African Peace and Security Architecture (APSA), the African Union (AU) and Regional Economic Communities (RECs) have intervened in violent conflicts using a number of non-military tools. In the first section, after unpacking the institutional pillars... -
Cognitive adjustment and psychological capital influences on expatriate workers’ job performance: An Ethiopian study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Wondwossen Kassa Tsegaye --- School of Management, China Qin Su --- School of Management, China Zhi Ouyang --- School of Management, ChinaThis study examined the relationship between cognitive adjustment and expatriates’ performance in the foreign host-country, and the moderating role of psychological capital in this relationship. The expatriates (N = 1 229; female = 32%; mean international tenure = 2.99, SD = 4.44) completed measures of cognitive adjustments (work... -
Parent-carer awareness and understanding of dyspraxia: Implications for child development support practices
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Athena Pedro --- Department of Psychology, South Africa Tessa Goldschmidt --- Department of Psychology, South Africa Lito Daniels --- Department of Psychology, South AfricaDyspraxia manifests as difficulty in thinking, planning, and executing planned movements or tasks. Dyspraxia affects roughly 5–6% of school aged children. This study aimed to explore parent-carer’s awareness and understanding of dyspraxia and the resources they self-perceived to need to... -
Alcohol use among adults in Kenya: Results from the National Non-Communicable Diseases Risk Factor survey, 2015
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- ASEAN Institute for Health Development, Thailand Karl Peltzer --- Department of Research and Innovation, South AfricaThe aim of this study was to assess the prevalence and correlates of alcohol use among Kenyan adults. We analysed data from the Kenya cross-sectional national Non-Communicable Diseases Risk Factor survey, 2015. The survey sampled 4 469 adults (median age... -
The role of support groups in linking and retaining newly diagnosed clients in HIV care in a peri-urban location in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Siyabonga Kave --- Department of Rural Health, South Africa Nelisiwe F Khuzwayo --- Department of Rural Health, South Africa Abigail Hatcher --- School of Public Health, South Africa Yandisa Sikweyiya --- Gender & Health Research Unit, School of Public Health, South AfricaAlthough South Africa has the largest number of people on antiretroviral therapy (ART) in the world, many HIV clients drop out of care immediately after HIV diagnosis. This qualitative study explored the perceptions and experiences of newly diagnosed clients on... -
Nutrient status of sandy soils in smallholder areas of Zimbabwe and the need to develop site-specific fertiliser recommendations for sustainable crop intensification
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Gabriel Soropa --- Department of Environmental Sciences and Technology, Zimbabwe Justice Nyamangara --- Department of Environmental Sciences and Technology, Zimbabwe Ermson Z Nyakatawa --- Department of Crop Science and Post Harvest Technology, ZimbabweSustainable crop intensification in sub-Saharan Africa cannot be achieved if farmers cultivate inherently infertile soils that are deficient in key essential nutrients, such as nitrogen and phosphorus. Most smallholder farmers in sub-Saharan Africa are resource-constrained and apply suboptimal fertiliser amounts,... -
Weed management in sugarcane using a combination of imazapyr followed by velvet bean as a break crop
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Peta L Campbell --- South African Sugarcane Research Institute, South Africa Richard P Beckett --- School of Life Sciences, South Africa Graeme W Leslie --- Simbithi Estate, South AfricaWhile farmers have used glyphosate to control the growth of weeds such as Cynodon dactylon (cynodon) in sugarcane fields for many years, its use has problems which include poor persistence in the soil and the development of tolerance. Here the... -
Climate change and adaptation-induced engineering design and innovations in water development projects in Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Berhanu F. Alemaw --- Department of Geology, Botswana Nako M. Sebusang --- Department of Civil Engineering, BotswanaIn this paper, a framework for best practice for incorporating climate change and adaption in Africa is presented from mainly the water resources design and management perspectives to chart systematically ways of incorporating climate change in engineering design of water... -
Sustaining African water resources under climate change: Emerging adaptation measures from UNFCCC national communications
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Shepherd Muchuru --- Institute for Corporate Citizenship, University of South Africa, South Africa Godwell Nhamo --- Institute for Corporate Citizenship, University of South Africa, South AfricaThe changing climate is expected to affect the demand for and availability of water resources. The African continent is known to be water scarce with highly temporal and spatially variable rainfall. This paper explores climate-induced challenges faced in the water... -
Impact of health, water and sanitation as key drivers of economic progress in Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Obaka Abel Inabo --- Department of Economics, Nigeria Noman Arshed --- Department of Economics, PakistanThis study examined the role of quality of health, water and sanitation as key drivers of economic progress, with a focus on Nigeria from 1990 to 2015. The indicators considered were economic progress (GDP per capita), health (infant mortality rate),... -
Exploring technological adaptation in the informal economy: A case study of innovations in small and medium enterprises (SMEs) in Zimbabwe
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Tarisai Kudakwashe Manyati --- College of Economic and Management Sciences, South Africa Morgen Mutsau --- Centre for Applied Social Sciences, ZimbabweLittle attention has been given to the processes and factors that facilitate technological adaptation by informal innovators operating in small and medium enterprises in Zimbabwe. This article sought to establish how and why technological adaptation occurs in the informal economy... -
Re-imagining Dzaleka: The Tumaini Festival and Refugee Visibility
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Catherine Makhumula --- Department of Drama, South AfricaIn this article, I explore the Tumaini Festival at Dzaleka Refugee Camp in Malawi as an important site for the re-imagination of place and the refugee. I argue that through the institution of the festival, refugee artists challenge the perception... -
Queer Subjects in Kenyan Cinema: Reflections on Rafiki
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Taiwo Adetunji Osinubi --- Department of English and Writing Studies, Canada -
Kipchamba Arap Tapotuk’s Music: Oral Narratives, (Hi)story and Culture of the Kalenjin People
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Charles Kipng’eno Rono --- Literature, Theatre and Film, KenyaFocusing on the Koilong’eet Band, this paper is an interrogation of how the selected songs by Kipchamba Arap Tapotuk incorporate Kalenjin oral techniques to create a space for narrating the past and the culture of the Kalenjin people. By conducting... -
Impact of shorebird predation on intertidal macroinvertebrates in a key North African Atlantic wintering site: an experimental approach
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Joulami --- Faculty of Sciences Ben M’sik, Morocco R El Hamoumi --- Faculty of Sciences Ben M’sik, Morocco Z Daief --- Faculty of Sciences Ain Chock, Morocco H Bazairi --- Faculty of Sciences, Morocco RJ Lopes --- Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO), InBio Laboratório Associado, PortugalShorebirds, as migratory aquatic birds and top predators in intertidal ecosystems, can be affected by global environmental changes and escalations in local impacts on coastal lagoons and estuarine trophic networks. Many shorebirds winter in North African Atlantic coastal sites, most... -
Bathymetry, substrate and fishing areas of Southeast Atlantic high-seas seamounts
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: OA Bergstad --- Institute of Marine Research (IMR), Norway ÅS Høines --- Institute of Marine Research (IMR), Norway R Sarralde --- Instituto Espanol de Oceanografia, Centro Oceanografico de Canarias, Spain G Campanis --- South East Atlantic Fisheries Organisation (SEAFO), Namibia M Gil --- Departamento de Ecología y Biología Animal, Edificio de Ciencias Experimentales, Spain F Ramil --- Departamento de Ecología y Biología Animal, Edificio de Ciencias Experimentales, Spain E Maletzky --- Ministry of Fisheries and Marine Resources, Namibia E Mostarda --- Food and Agriculture Organization of the United Nations (FAO), Italy L Singh --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa MA António --- Secretary of State of Affairs, Ministry of Agriculture, Rural Development and Fisheries, AngolaMost of the Southeast Atlantic Ocean is abyssal, and global bathymetries suggest that only ∼3.2% of the areas beyond national jurisdiction (ABNJ; also known as the high seas, as defined in the United Nations Convention on the Law of the... -
Spatial variation in meristic and morphometric characteristics of sardine Sardinops sagax around the coast of southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Groenewald --- Marine Research Institute and Department of Biological Sciences, South Africa CL Moloney --- Marine Research Institute and Department of Biological Sciences, South Africa CD van der Lingen --- Marine Research Institute and Department of Biological Sciences, South AfricaSpatial variability in phenotypic characteristics within a fish population may be used to infer the existence of multiple stocks, and knowledge of the population structure of exploited species is important for their sustainable management. In this study we investigated geographic... -
Abundance estimates of an isolated population of common bottlenose dolphins Tursiops truncatus in Walvis Bay, Namibia, 2008–2012
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SH Elwen --- Mammal Research Institute, University of Pretoria, South Africa RH Leeney --- Natural History Museum, United Kingdoms T Gridley --- Centre for Statistics in Ecology, Environment and Conservation, Department of Statistical Sciences,The coastal population of common bottlenose dolphins Tursiops truncatus found in Namibia is regionally isolated and unique. This population faces several potential anthropogenic threats, especially in Walvis Bay, including boat-based tourism, a commercial harbour undergoing expansion, and aquaculture for oysters... -
Psychological management intervention guidelines for rape survivors with post-traumatic stress disorder (PTSD): A brief exploratory systematic literature review
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nombulelo Veronica Sepeng --- Faculty of Health Sciences, Prinshof Campus, Department of Nursing, South Africa Lufuno Makhado --- School of Health Sciences, Research office, South AfricaThis exploratory systematic literature review aimed to characterise the current evidence on psychological management intervention guidelines for use with rape survivors with post-traumatic stress disorder (PTSD) symptoms. For the data searches we accessed the following electronic databases: Google Scholar, Science... -
Using career counselling with group life design principles to improve the employability of disadvantaged young adults
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacobus G. Maree --- Department of Educational Psychology, South Africa Erna W. Gerryts --- Department of Educational Psychology, South Africa Lizelle Fletcher --- Department of Statistics, South Africa Joyce Olivier --- Department of Statistics, South AfricaThis article explores the effects of group life design counselling on unemployed young adults’ career adaptability skills. Purposive and criterion sampling were used to select 62 participants involved in a skills programme (mean age = 24.86 years, SD = 6.38... -
Job apathy and work engagement: Moderating influence of perceived leader integrity and spiritual intelligence in a Nigerian mass transit company
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Fabian O. Ugwu --- Department of Psychology, Faculty of Management and Social Sciences, Nigeria Ike E. Onyishi --- Department of Psychology, Faculty of the Social Sciences, Nigeria Okechukwu Ibiam Egwu --- Department of Political Science, Faculty of Management and Social Sciences, Nigeria Otu Otu Akanu --- Department of Political Science, Faculty of Management and Social Sciences, Nigeria Okechukwu Groupson --- Department of Political Science, Faculty of Management and Social Sciences, Nigeria Moses Agudiegwu --- Department of Political Science, Faculty of Management and Social Sciences, NigeriaThis study explored the direct and interactive roles of job apathy, perceived leader integrity, and spiritual intelligence on work engagement among 206 Nigerian employees of a leading mass transit company (females = 33%; mean age = 35.81years, SD = 5.04;... -
Managing dyspraxia: Pre-school teachers’ perceptions, experiences and strategies
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Athena Pedro --- Department of Psychology, South Africa Tessa Goldschmidt --- Department of Psychology, South AfricaDyspraxia is a childhood developmental disorder that manifests as a difficulty in thinking, planning, and executing planned movements or tasks. Dyspraxia affects approximately 5–6% of school-aged children. This study aimed to explore pre-school teachers’ awareness and understanding of dyspraxia, and... -
Morphological differentiation among populations of Sarotherodon melanotheron melanotheron Rüppell 1852 across the West African Lagoon systems (Benin, Cameroon, Nigeria, Togo)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MO Popoola --- Department of Zoology, Nigeria FDB Schedel --- SNSB-Bavarian State Collection Zoology, Germany MA Akintoye --- Department of Zoology, NigeriaMorphometric variation among populations of Sarotherodon melanotheron melanotheron across its natural range (Mahin, epe, Lekki, Apese, Kuramo, Lagos, Iyagbe, Ologe, Badagry, Yewa – Nigeria; Be Lagoon – Togo; Idenau – Cameroon, Aheme – Benin; Portonovo – Benin) were studied to... -
The role of fish-poultry integration on fish growth performance, yields and economic benefits among smallholder farmers in sub-Saharan Africa, Tanzania
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AP Shoko --- Tanzania Fisheries Research Institute, Tanzania SM Limbu --- Department of Aquatic Sciences and Fisheries Technology, Tanzania HA Lamtane --- Department of Animal, Aquaculture and Range Sciences, Tanzania MA Kishe-Machumu --- Tanzania Fisheries Research Institute, Tanzania B Sekadende --- Tanzania Fisheries Research Institute, Tanzania EE Ulotu --- Tanzania Fisheries Research Institute, Tanzania JC Masanja --- Kilombero District Council, Tanzania YD Mgaya --- Department of Aquatic Sciences and Fisheries Technology, TanzaniaAquaculture practices from sub-Saharan Africa are characterised by low production, owing to improper technology. Production can be increased through integrating fish farming with other existing on-farm activities, particularly livestock husbandry. We assessed the role of fish-poultry integration on all male... -
Nevirapine in African surface waters induces liver histopathology in Oreochromis mossambicus: A laboratory exposure study
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: UMC Nibamureke --- Department of Zoology, South Africa IEJ Barnhoorn --- Department of Zoology, South Africa GM Wagenaar --- Department of Zoology, South AfricaNevirapine (NVP) is one of the HIV antiretrovirals detected recurrently in African surface waters. Liver side effects in humans were reported. Because the effects on fish are unknown, this study investigated the potential effects of NVP on selected biometric indices... -
Developing a taper model for the Pinus elliottii × P. caribaea var. hondurensis hybrid in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Madeleen Algera --- Planning Department, Komatiland Forest, South Africa Christoph Kätsch --- Postgraduate Forest Programme, South Africa Paxie W Chirwa --- Postgraduate Forest Programme, South AfricaA relatively new hybrid, Pinus elliottii × P. caribaea var. hondurensis (Pexc), for which a taper model does not exist, is being planted commercially in South Africa. This study primarily focused on developing a taper model for Pexc in South... -
Mixed-effect non-linear modelling for diameter estimation along the stem of Tectona grandis in mid-western Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Luciano Rodrigo Lanssanova --- Postgraduate Program of Forestry Sciences, Department of Forest Engineering, Brazil Sebastião do Amaral Machado --- Postgraduate Program of Forestry Engineering, Department of Forest Engineering, Brazil Alexandre Techy de Almeida Garrett --- Postgraduate Program of Forestry Sciences, Department of Forest Engineering, Brazil Izabel Passos Bonete --- Postgraduate Program of Forestry Sciences, Department of Forest Engineering, Brazil Allan Libanio Pelissari --- Postgraduate Program of Forestry Engineering, Department of Forest Engineering, Brazil Afonso Figueiredo Filho --- Postgraduate Program of Forestry Sciences, Department of Forest Engineering, Brazil Franciele Alba da Silva --- Postgraduate Program of Forestry Engineering, Department of Forest Engineering, Brazil Lucas Dalmolin Ciarnoschi --- Postgraduate Program of Forestry Engineering, Department of Forest Engineering, BrazilThis study evaluated the efficiency of taper functions and the application of mixed-effect modelling for diameter estimation along the stems of Tectona grandis. We sampled 266 trees of Tectona grandis, measuring the diameter at relative heights for volume determination, grouping... -
Forest gap size can efficiently promote litter decomposition and nutrient release in south-western China
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Xun Li --- Key Laboratory of Ecological Forestry Engineering, China Danju Zhang --- Key Laboratory of Ecological Forestry Engineering, China Yan Zhang --- Key Laboratory of Ecological Forestry Engineering, China Jian Zhang --- Key Laboratory of Ecological Forestry Engineering, China Simeng Song --- Key Laboratory of Ecological Forestry Engineering, China Yang Zhou --- Key Laboratory of Ecological Forestry Engineering, ChinaForest gaps are important in forest dynamics and management; however, the gap size that is most conducive to the decomposition of litter and promotion of nutrient cycling in forests remains poorly understood. The mass loss and nutrient release from Pinus... -
Architectures of visibility and invisibility: a reflection on the secret affinities of Johannesburg’s cross-border shopping hub
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Tanya Zack --- School of Architecture and Planning, Thireshen Govender --- Graduate School of Architecture, South AfricaThe inner city of Johannesburg, South Africa, is the site of an intense wholesale and retail trade in fast fashion. Here mostly migrant entrepreneurs supply billions of rand worth of Chinese apparel to local and cross-border shoppers from across sub-Saharan... -
Architecture-by-migrants: the porous infrastructures of Bellville
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Huda Tayob --- The Bartlett School of Architecture, United KingdomThis paper takes as its subject a series of contingent mixed-use urban markets that have been established in Cape Town, South Africa, by migrants, refugees and asylum seekers from various parts of the African continent. It argues that migrant spaces... -
Layering mobilities: charting place-making through performance in Johannesburg’s inner-city suburbia
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Alex Halligey --- South African Research Chair in Spatial Analysis and City Planning, Wits School of Architecture and Planning, South AfricaDrawing together Tim Cresswell’s work on mobilities with Walter Benjamin’s Arcades Project, this article considers the Johannesburg suburbs of Bertrams, Lorentzville and Judith’s Paarl as produced and reinvented through the mobilities of their inhabitants. How might an artistic performance foreground... -
Rhythm and connection on Rissik Street: Reflecting on public space research in inner-city Johannesburg
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Temba John Dawson Middelmann --- Town and Regional Planning, South AfricaThis paper explores how entangled layers of use and contingencies of open spaces in downtown Johannesburg, South Africa, relate to their structural, material and symbolic aspects. Reflecting on research at Pieter Roos Park, Constitution Hill and Gandhi Square, this paper... -
Double vision and suspended conversations: reconstituting landscapes of memory in Port Elizabeth, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Naomi Roux --- Department of Architecture and Planning, South AfricaBetween 1968 and 1975, the neighbourhood of South End in Port Elizabeth underwent a traumatic process of destruction as its residents were forcibly removed under the Group Areas Act and the suburb was razed. This paper traces some of the... -
Student’s perception of engineering design for competitiveness in Africa: The case of Tanzania, East Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Lawrence Joseph Kerefu --- Department of Mechanical Engineering, Tanzania Juliana Zawadi Machuve --- Department of Mechanical and Industrial Engineering, TanzaniaEngineering is vital for addressing basic human needs, improving the quality of life and creating opportunities for sustainable prosperity at local, regional, national and global levels. However, Africa faces a shortage of engineers arising from the declining interest and enrolment... -
A mammal survey of the Serra Jeci Mountain Range, Mozambique, with a review of records from northern Mozambique’s inselbergs
Item type: Journal Article • Journal: African Zoology • Authors: Tim van Berkel --- Biodiversity Inventory for Conservation (BINCO), Belgium Emidio Sumbane --- Natural History Museum, Praca Travessia do Zambeze, Mozambique Samuel EI Jones --- Biodiversity Inventory for Conservation (BINCO), Belgium Merlijn Jocque --- Biodiversity Inventory for Conservation (BINCO), BelgiumThe mountains of northern Mozambique have remained poorly studied biologically until recent years with surveys covering a variety of taxonomic groups highlighting their biological and conservation value. Even so, the medium and large mammal fauna remains poorly known and to... -
Knowledge, awareness and attitude towards human papilloma virus vaccine in a resource-constrained setting: a comparison between an urban and rural population in South Africa
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Lwangila W Shabani --- Department of Obstetrics and Gynaecology Registrar, Greys Hospital, South Africa Manivasan Moodley --- Department of Gynaecological Oncology, South Africa Thinagrin Dhasarathun Naidoo --- Department of Obstetrics and Gynaecology, South AfricaObjectives: This study compared the knowledge, awareness and attitude towards the human papilloma virus (HPV) vaccine between urban and rural population groups. -
What is anthropology that decolonising scholarship should be mindful of it?
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Hylton White --- Department of Anthropology, South AfricaDecolonising scholarship in South African anthropology has met with an ingrained scepticism about ethnographic valorisations of forms of life that claim to be indigenous. This scepticism comes from a very long history of opposing ethnological essentialisms created in the colonial... -
Reliving secrecy and ethics in bojale ten years on
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Keletso Gaone Setlhabi --- Archaeology Unit, Department of History, BotswanaIn this photo essay, I reflect on secrecy and ethics in bojale [girls’ initiation] of Bakgatla-baga-Kgafela a decade after my participant observation in 2009. I had entered the ritual with the dual identity of initiate and researcher-at-home. The images were... -
Population biology of the woodland dormouse Graphiurus murinus in a riverine Combretum forest, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Zimkitha JK Madikiza --- School of Animal, Plant and Environmental Sciences, South Africa Sandro Bertolino --- Department of Life Sciences and Systems Biology, Italy Emmanuel Do Linh San --- Department of Zoology and Entomology, South AfricaUntil recently, very little was known of the biology and ecology of the woodland dormouse Graphiurus murinus, a nocturnal and arboreal rodent belonging to the family Gliridae. Here, we aimed to increase our knowledge on its population biology in a... -
Evaluation of the early warning indicators of HIV drug resistance surveillance system in Manicaland province, Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Anesu Marume --- Department of Community Medicine, College of Health Sciences, Zimbabwe Admire Zikiti --- Department of Community Medicine, College of Health Sciences, Zimbabwe Byron Chapoterera --- Department of Community Medicine, College of Health Sciences, Zimbabwe Julita Maradzika --- Department of Community Medicine, College of Health Sciences, ZimbabweMore than 1.1 million people currently receive lifelong antiretroviral treatment in Zimbabwe following the adoption of the test and treat strategy in 2017. The huge numbers of people on antiretroviral therapy (ART), combined with HIV’s error-prone replication, increases the probability... -
Diaphragm wall and piles set record in Africa: Foundation for Africa’s largest suspension bridge in Mozambique
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Joern Seitz --- GAUFF GmbH & Co. Engineering KG, Mozambique/Germany Bai Pengyu --- CRBC China Road and Bridge Corporation, China Wang Gang --- CRBC China Road and Bridge Corporation, ChinaAs part of the master plan for the infrastructure of the road network in the southern Africa area, a suspension bridge is being built in Maputo, Mozambique. The bridge over the Maputo Bay has an open span of 680 m between... -
What can multi-sited and digital ethnography contribute to innovation studies in the global South?
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Marcela Suarez --- Lateinamerika-Institut, GermanyInnovation studies research is at the forefront of recent theoretical and interdisciplinary debates. However, it also faces at least three methodological challenges, namely: the need for empirical strategies to analyze inclusive innovations, the need to conduct symmetrical cutting-edge research in... -
Beyond the ‘usual suspects’ – Alternative qualitative methods for innovation policy studies
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nadja Nordling --- Faculty of Social Sciences, Finland Rhiannon Pugh --- Department of Human Geography, SwedenIn this paper we make three points about the current state and promising future directions of qualitative research in our field of innovation policy research. First, we argue that research design and methods are dealt with quite superficially in most... -
Effects of tobacco use on non-adherence to antiretroviral therapy among HIV-positive patients in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- ASEAN Institute for Health Development, Thailand Diana Huis in ‘t Veld --- Department of Internal Medicine and Infectious Diseases, Belgium Karl Peltzer --- Department for Management of Science and Technology Development, VietnamThis study aimed to estimate the relationship between tobacco use and non-adherence to antiretroviral therapy (ART) in a South African sample. Participants were 1 963 HIV patients who attended a primary care clinic in Pretoria (female = 68.5%; black African... -
Psychosocial resources, support, and career satisfaction among professional women: A South African study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ndayiziveyi Takawira --- Department of Human Resource Management, South Africa Melinde Coetzee --- Department of Industrial and Organisational Psychology, South AfricaThe study examined the role psychosocial resources play in enhancing perceptions of support and career satisfaction among professional women. The participants were a purposive sample of 606 professional women from South Africa (white = 61.8%, black = 19.9%, Indian =... -
Personal growth initiative: Relation to Hedonia and Eudaimonia happiness among South African university students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Directorate of Student Development and Support, South AfricaThis study examined the relationship between personal growth initiative (PGI) and hedonic and eudaimonic happiness among a sample of South African university students (N = 235; mean age = 20.38, SD = 1.55; female = 61.70%). Students completed measures on... -
Effect of residue management and fertiliser application on the productivity of a Eucalyptus hybrid and Acacia mangium planted on sloping terrain in northern Vietnam
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Nguyen Van Bich --- Tasmanian Institute of Agriculture, University of Tasmania, Australia Daniel Mendham --- CSIRO Land and Water, Australia Katherine J Evans --- Tasmanian Institute of Agriculture, University of Tasmania, Australia Tran Lam Dong --- Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Vietnam Vo Dai Hai --- Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Vietnam Hoang Van Thanh --- Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Vietnam Caroline L Mohammed --- Tasmanian Institute of Agriculture, University of Tasmania, AustraliaForest plantation growers in Vietnam commonly burn residues after harvesting and often apply suboptimal amounts of nutrients during plantation establishment. We examined whether the retention of forest residue, and application of phosphorus fertiliser at higher rates, can increase rates of... -
Influence of site in the wood quality of Eucalyptus in plantations in Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Thiago Leite Barbosa --- Department of Forestry and Wood Sciences, Brazil José Tarcísio da Silva Oliveira --- Department of Forestry and Wood Sciences, Brazil Sofia Maria Gonçalves Rocha --- Department of Forestry and Wood Sciences, Brazil Ana Paula Câmara --- Department of Forestry and Wood Sciences, Brazil Graziela Baptista Vidaurre --- Department of Forestry and Wood Sciences, Brazil Antônio Marcos Rosado --- Celulose Nipo-Brasileira SA (CENIBRA), Brazil Fernando Palha Leite --- Celulose Nipo-Brasileira SA (CENIBRA), BrazilGenetic materials interact with the environment in specific ways, therefore their responses in wood need to be better understood. The present study sought to evaluate the influence of different climatic conditions in Minas Gerais, Brazil on Eucalyptus grandis × Eucalyptus... -
Horizon scanning for alien predatory crabs: insights from South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Swart --- Department of Botany and Zoology, South Africa TB Robinson --- Department of Botany and Zoology, South AfricaDue to the presence of few dominant predators on South African rocky shores, this coastline could be vulnerable to invasion by predatory crabs. This study applied horizon scanning to create an ordered watch list of alien crab species that could... -
Discrimination of the phenotypic sardine Sardina pilchardus stocks off the Moroccan Atlantic coast using a morphometric analysis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Mounir --- Biodiversity and Dynamics of Ecosystems Laboratory, Department of Biology, Faculty of Sciences, Morocco A Ewague --- Biodiversity and Dynamics of Ecosystems Laboratory, Department of Biology, Faculty of Sciences, Morocco M Znari --- Biodiversity and Dynamics of Ecosystems Laboratory, Department of Biology, Faculty of Sciences, Morocco H Elmghazli --- Biodiversity and Dynamics of Ecosystems Laboratory, Department of Biology, Faculty of Sciences, MoroccoMorphometric variation can be very useful for discriminating ‘phenotypic stocks’ as groups with similar life-history traits. Such groups are of great importance for accurate population-dynamics modelling for purposes of fishery stock assessment and management, independent of their genetic differences or... -
Seasonal cycle of the salinity barrier layer revealed in the northeastern Gulf of Guinea
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AN Dossa --- International Chair in Mathematical Physics and Applications (ICPMA-UNESCO Chair), Benin CY Da-Allada --- International Chair in Mathematical Physics and Applications (ICPMA-UNESCO Chair), Benin G Herbert --- Institut de Recherche pour le Développement (IRD), Instrumentation, Moyens Analytiques, France B Bourlès --- Institut de Recherche pour le Développement (IRD), Instrumentation, Moyens Analytiques, FranceThe region located in the far northeast of the Gulf of Guinea (NEGG), eastern tropical Atlantic, remains poorly documented due to a lack of available in situ ocean data. Heavy rainfall and intense river discharges observed in this region induce... -
Growth and mortality parameters of the black-chinned tilapia Sarotherodon melanotheron melanotheron (Pisces: Cichlidae) in a small lagoon in the Central Region of Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GA Tibu --- Department of Fisheries and Aquatic Sciences, Ghana DW Aheto --- Department of Fisheries and Aquatic Sciences, Ghana J Blay --- Department of Fisheries and Aquatic Sciences, GhanaThis study quantified growth, mortality, and exploitation rate of the black-chinned tilapia (Sarotherodon melanotheron melanotheron) population in Etsir Lagoon, a small brackish waterbody at Abandze (5°11′ N, 1°5′ W) in the Central Region of Ghana for management of the stock... -
The impact of educational attainment on household poverty in South Africa: A case study of Limpopo province
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Fru Awah Wanka --- Institute for Social Development, South Africa Ravinder Rena --- NWU Business School, South AfricaThe provision of education in South Africa during the apartheid regime was poor, particularly for the African population and especially those living in the homelands. This has hindered those lacking the required skills from obtaining lucrative employment and earning prospects... -
Determinants of serum 25-hydroxyvitamin D levels in healthy young adults living in the Western Cape, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: J Visser --- Division of Human Nutrition, Department of Global Health, South Africa K Knight --- Division of Human Nutrition, Department of Global Health, South Africa L Philips --- Division of Human Nutrition, Department of Global Health, South Africa W Visser --- Division of Dermatology, South Africa M Wallace --- Cancer Association of South Africa (CANSA), Cape Town, South Africa, DG Nel --- Centre for Statistical Consultation, South Africa R Blaauw --- Division of Human Nutrition, Department of Global Health, South AfricaBackground: Vitamin D deficiency is fast emerging as a global pandemic. In South Africa few studies have been conducted to determine the vitamin D status of the healthy population. -
Incidence and Severity of Common Bean (Phaseolus vulgaris L.) Pests in Agro-Ecological Zones and Farming Systems of Western Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: JO Ogecha --- Kenya Agricultural and Livestock Research Organization, Kenya W Arinaitwe --- International Centre for Tropical Agriculture, Kampala Uganda JW Muthomi --- Department of Crop Protection, Kenya V Aritua --- International Centre for Tropical Agriculture, Kampala Uganda JN Obanyi --- Kenya Agricultural and Livestock Research Organization, KenyaInfestation by insect pests is a serious problem in legume up scaling activities and a threat to future production in Kenya. The survey aimed at determining incidence and severity of insect pests of common beans in different districts and agro-ecological... -
Genetic structure associated with habitat diversification supports the independent evolution of ecomorphs in Bradypodion pumilum
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Krystal A Tolley --- , South Africa Kevin P Hopkins --- , South Africa Jessica M da Silva --- , South AfricaThere are notable examples of repeated evolution of ecomorphs within groups of closely related species, these are typically viewed as remarkable cases of natural selection. In most cases, directional selection for certain phenotypic traits under specific (and differing) environmental conditions... -
Correlates of physical activity among adults with anxiety symptoms in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- ASEAN Institute for Health Development, Thailand Karl Peltzer --- Deputy Vice Chancellor Research and Innovation Office, South AfricaThe present study aimed to assess the correlates of low physical activity in adults with anxiety in South Africa. Data from the South African National Health and Nutrition Examination Survey (a cross-sectional survey in 2012) were utilised. The sample included... -
Exploring the audit capabilities expectation-performance gap of newly employed first-year trainee accountants in Gauteng: Audit managers at large firms’ perceptions
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Rolien Kunz --- Department of Economic and Management Sciences, South Africa Herman de Jager --- Department of Economic and Management Sciences, South AfricaThe objective of this paper is to determine the relative size of the expectation-performance gap of technical auditing and assurance knowledge of newly employed first-year trainee accountants. In a study dealing with the expectation-performance gap in accounting education it was... -
Theoretical turns through tourism taste-scapes: the evolution of food tourism research
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Sally Everett --- King’s Business School, United KingdomThis article reflects on the evolution of food tourism research by tracing its conceptual, theoretical and empirical twists and turns over the past few decades. Prompted by some recent systematic reviews of food tourism studies, I draw on literature to... -
Microbreweries and finance in the rural north of Sweden — a case study of funding and bootstrapping in the craft beer sector
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Wilhelm Skoglund --- Department of Economics, Geography, Law and Tourism, The European Tourism Research Institute, SwedenThis paper explores the growth of the craft beer sector in a northern Swedish rural setting, with a particular focus on how small-scale brewers manage to fund their activities and ventures. It connects craft brewing with the concept of bootstrapping,... -
Factors that influence firewood use among electrified Bapedi households of Senwabarwana Villages, South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Khomotso Semenya --- College of Agriculture and Environmental Sciences, Republic of South Africa Fannie Machete --- College of Agriculture and Environmental Sciences, Republic of South AfricaThis paper presents the factors that influence firewood use among electrified Bapedi households in Senwabarwana Villages. The study follows explanatory and exploratory methods of data analysis, through survey (structured interviews) and meta-analysis. In-depth content analysis was followed to establish trends... -
High-resolution digital soil mapping of multiple soil properties: an alternative to the traditional field survey?
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Trevan Flynn --- Department of Soil Science, South Africa Willem de Clercq --- Stellenbosch Water Institute, Stellenbosch University, South Africa Andrei Rozanov --- Department of Soil Science, South Africa Cathy Clarke --- Department of Soil Science, South AfricaSpatial information on soil particle size distribution and soil organic carbon (SOC) are important for land-use management, environmental models and policy-making. Digital soil mapping (DSM) techniques can quantitatively predict these soil properties using minimal resources. However, DSM has not been... -
Acute changes in haematocrit leading to polycythaemia in late-onset hypogonadism patients that receive testosterone replacement therapy: a South African study
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Jesslee du Plessis --- Medicine Usage in South Africa (MUSA), North-West University, South Africa Hermanus Lambertus Bester --- Private Hospital, Emalahleni, South Africa, Marlene Julyan --- Medicine Usage in South Africa (MUSA), North-West University, South Africa Marike Cockeran --- School for Computer, Statistical and Mathematical Sciences, North-West University, South AfricaBackground: According to the literature, parenteral testosterone replacement therapy (TRT)-induced polycythaemia is associated with cardiovascular events. No or minimal data exist for the prevalence of TRT-induced polycythaemia in late-onset hypogonadism (LOH) patients from South Africa. Polycythaemia is the side effect... -
A five-year audit of lower limb amputations below the knee and rehabilitation outcomes: the Durban experience
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: P Manickum --- School of Clinical Medicine, College of Health Sciences, South Africa SS Ramklass --- School of Clinical Medicine, College of Health Sciences, South Africa TE Madiba --- Department of General Surgery, School of Clinical Medicine, College of Health Sciences, South AfricaIntroduction: Lower limb amputation (LLA) due to diabetes mellitus (DM) is a growing epidemic worldwide. -
Can long-term content analysis of print media be used to examine species composition, population demography and changes in distributional range of recreational fishery species?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: WM Potts --- Department of Ichthyology and Fisheries Science, South Africa T Jordan --- Department of Ichthyology and Fisheries Science, South Africa A-R Childs --- Department of Ichthyology and Fisheries Science, South AfricaAlthough marine recreational fisheries are socially and economically important, there is often limited funding for their monitoring and assessment. With South African anglers reporting catch declines for almost all targeted species and little long-term monitoring data available, novel methods need... -
Cranial variation in common dolphins Delphinus spp. off South Africa, with the inclusion of information from the holotype of Delphinus capensis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SG Ngqulana --- Department of Zoology, South Africa S Plön --- Earth Stewardship Science Research Institute – Africa Earth Observatory Network, South Africa A Galatius --- Department of Bioscience, Denmark P Pistorius --- Department of Zoology, South Africa GJG Hofmeyr --- Department of Zoology, South AfricaThe common dolphins (genus Delphinus) are widely distributed in all temperate and tropical oceans. Over this wide geographical distribution they show considerable range in morphological variation, which has led to descriptions of several species in the genus. Until recently, only... -
New records of Planes crabs associated with sea turtles in Africa and adjacent waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JB Pfaller --- Caretta Research Project, United States AN Palau --- Archie Carr Center for Sea Turtle Research and the Department of Biology, United States PD Agamboué --- Marine Program, Gabon M Barret --- Kélonia, l’Observatoire des Tortues Marines, Réunion S Ciccione --- Kélonia, l’Observatoire des Tortues Marines, Réunion G Cliff --- KwaZulu-Natal Sharks Board, South Africa A Formia --- Marine Program, Gabon JC Manfoumbi --- Ibonga-ACPE [Association pour la Connaissance et la Protection de l’Environnement], Gabon A Marco --- Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas (EBD-CSIC), Spain G-P Sounguet --- Aventures Sans Frontières, Gabon AD Tucker --- Mote Marine Laboratory and Aquarium, United StatesCrabs of the genus Planes (family Grapsidae) live on floating debris and pelagic animals and spend their lives rafting at the surface of the open ocean. Among living substrata, Planes minutus is frequently found associated with sea turtles. However, prior... -
Evidence for multiple paternity and confirmation of an Indo-Pacific origin of blacktip shark Carcharhinus limbatus occurring in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AE Bester-van der Merwe --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa SN Maduna --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa KL Hull --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa J Bell --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa C Rossouw --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa SP Wintner --- KwaZulu-Natal Sharks Board, South AfricaThe blacktip shark Carcharhinus limbatus is a cosmopolitan species found in warm-temperate, subtropical and tropical waters around the world. The research here aimed to assess whether multiple paternity exists in South African C. limbatus and to confirm phylogeographic patterns previously... -
Impacts of a concentrated solar power trough facility on birds and other wildlife in South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Corey Jeal --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa Vonica Perold --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa Samantha Ralston-Paton --- BirdLife South Africa, South Africa Peter G Ryan --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South AfricaThis study assesses bird and wildlife mortality and changes in bird species communities at a 50 MW utility-scale concentrated solar power parabolic trough facility in South Africa. The facility was searched for evidence of large vertebrate mortalities over three months... -
Taxonomy, phylogeny and biogeography of African spurfowls Galliformes, Phasianidae, Phasianinae, Coturnicini: Pternistis spp.
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tshifhiwa G Mandiwana-Neudani --- Department of Biodiversity, South Africa Robin M Little --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, Department of Biological Sciences, South Africa Timothy M Crowe --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, Department of Biological Sciences, South Africa Rauri CK Bowie --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, Department of Biological Sciences, South AfricaAfro-Asiatic perdicine galliform birds, commonly and inconsistently referred to as francolins, spurfowls and partridges, have contentious taxonomic and phylogenetic histories. In a widely followed monograph, Hall combined two putative monophyletic, but taxonomically unnamed, clades comprising 28 perdicine species known as... -
Implications of geographical range changes and resultant sympatry for three Accipiter hawks on the Cape Peninsula, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Robin M Little --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa Rene A Navarro --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South AfricaSome invasive species are known to compete with and even displace indigenous species. Two Accipiter species historically indigenous to eastern South Africa have colonised the Cape Peninsula in the south-west of the country and have become sympatric with a third... -
Fostering entrepreneurship for innovation in African Banks’ subsidiaries
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Christian Wolf --- Policy Experimentation & Evaluation Platform, Portugal Dana T. Redford --- Policy Experimentation & Evaluation Platform, PortugalHow to keep the spirit and dynamics of an entrepreneurial venture alive as it evolves into a large institution? A small number of African-owned banks have risen from early entrepreneurial beginnings to large scale operations with subsidiaries in international markets... -
Unravelling the taxonomy and distribution of two problematic small mammal genera in the Karoo biome
Item type: Journal Article • Journal: African Zoology • Authors: Devon Main --- Centre for Ecological Genomics and Wildlife Conservation, Department of Zoology, South Africa Laura Tensen --- Centre for Ecological Genomics and Wildlife Conservation, Department of Zoology, South Africa Katharina Gihring --- Centre for Ecological Genomics and Wildlife Conservation, Department of Zoology, South Africa Gary Bronner --- Department of Biological Sciences, South Africa Nadine Aboul-Hassan --- Institute for Communities and Wildlife in Africa, Department of Biological Sciences, South Africa Michelle Blanckenberg --- Institute for Communities and Wildlife in Africa, Department of Biological Sciences, South Africa Bettine Jansen van Vuuren --- Centre for Ecological Genomics and Wildlife Conservation, Department of Zoology, South AfricaSouth Africa harbours remarkable biological diversity with three of the 34 recognised global biodiversity hotspots placed within its borders. One of these is the Succulent Karoo, which together with the Nama-Karoo, forms the Greater Karoo region. Notwithstanding a paucity of... -
A review of the use of birds’ nests by Egyptian geese, including a breeding attempt in a hooded vulture nest
Item type: Journal Article • Journal: African Zoology • Authors: Lindy J Thompson --- Centre for Functional Biodiversity, School of Life Sciences, South Africa Carrie J Hickman --- School of Environment, Earth and Ecosystem Sciences, United Kingdom John P Davies --- Birds of Prey Programme, Endangered Wildlife Trust, South Africa Fiona Fern --- Independent researcher, United Kingdom Colleen T Downs --- Centre for Functional Biodiversity, School of Life Sciences, South AfricaEgyptian geese Alopochen aegyptiaca are widely reported to be territorial and aggressive. They are known to attack and sometimes kill other birds and they may attempt to usurp their nests. Here information is collated on the bird species whose nests... -
Taxonomy, phylogeny and biogeography of ‘true’ francolins: Galliformes, Phasianidae, Phasianinae, Gallini; Francolinus, Ortygornis, Afrocolinus gen. nov., Peliperdix and Scleroptila spp.
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tshifhiwa G Mandiwana-Neudani --- Department of Biodiversity, South Africa Robin M Little --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, Department of Biological Sciences, South Africa Timothy M Crowe --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, Department of Biological Sciences, South Africa Rauri CK Bowie --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, Department of Biological Sciences, South AfricaAfro-Asiatic perdicine galliform taxa commonly and inconsistently referred to as francolins, spurfowls and partridges have contentious taxonomic and phylogenetic histories. Hall combined two putative monophyletic, but taxonomically unnamed, clades comprising 28 perdicine species known as ‘francolins’ or fisante in South... -
Variable phylogeographic histories of five forest birds with populations in Upper and Lower Guinea: implications for taxonomy and evolutionary conservation
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jean-Bernard Dongmo --- Laboratory of Zoology, Department of Animal Biology and Physiology, Faculty of Sciences, Cameroon Jeffrey M DaCosta --- Biology Department, Boston College, USA Champlain Djieto-Lordon --- Laboratory of Zoology, Department of Animal Biology and Physiology, Faculty of Sciences, Cameroon Pierre Ngassam --- Laboratory of Parasitology and Ecology, Cameroon Michael D Sorenson --- Department of Biology, USAThis study evaluates phylogeographic structure in selected forest bird species distributed on either side of the Dahomey Gap in West Africa to extend analyses of avian diversification across the Guineo-Congolean forest. Mitochondrial DNA sequence data were collected for five species,... -
Clarifying taxonomic, distributional and genetic information relating to subspecies of the Hildebrandt’s Spurfowl Pternistis hildebrandti and the Yellow-necked Spurfowl P. leucoscepus
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Timothy M Crowe --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, Department of Biological Sciences, South Africa Robin M Little --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, Department of Biological Sciences, South Africa Donald A Turner --- Bird Committee of Nature Kenya, KenyaWe provide suggested errata vis-à-vis Mandiwana-Neudani TG, Little RM, Crowe TM, Bowie RCK. 2019. Taxonomy, phylogeny and biogeography of African spurfowls Galliformes, Phasianidae, Phasianinae, Coturnicini: Pternistis spp. Ostrich 90(2): 145–172. Firstly, the name fischeri was incorrectly applied to the southern... -
Catch distribution and size structure of Nile tilapia (Oreochromis niloticus) in Lake Tana, Ethiopia: implications for fisheries management
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DA Tefera --- Bahir Dar University College of Agriculture and Environmental Sciences, Ethiopia MM Zerihun --- Fisheries, Wetlands and Wildlife Management, Ethiopia YTG Wolde-Meskel --- Hawassa University College of Agriculture, EthiopiaNile tilapia (Oreochromis niloticus) is the most important species for consumption and economic purposes in Lake Tana, yet, tilapia stocks have declined drastically over the past decades because of anthropogenic impacts. Thus, effective conservation management is required urgently. The aim... -
Effects of chronic exposures of selected heavy metals on the glutathione S-transferase activity of freshwater snails Lymnaea natalensis in Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SM Mnkandla --- Ecotoxicology Research Group, Department of Applied Biology and Biochemistry, Zimbabwe AH Siwela --- Ecotoxicology Research Group, Department of Applied Biology and Biochemistry, Zimbabwe N Basopo --- Ecotoxicology Research Group, Department of Applied Biology and Biochemistry, ZimbabweThe effect of the heavy metals (cadmium, copper, mercury and lead) on snail glutathione S-transferase (GST) was investigated in 2015. Groups of Lymnaea natalensis snails were exposed to heavy metals for 28 days at concentrations reportedly found in the Mguza... -
Foreign direct investment inflows, intellectual property rights and economic freedom: Empirical evidence from middle- and low-income countries
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Saïd Hammami --- Laboratoire d’Economie et de Gestion Industrielle LEGI, Ecole Polytechnique de Tunisie, TunisiaThis study examines the impact of intellectual property rights (IPRs) on foreign direct investment (FDI) inflows, using macro data over a panel of 39 middle- and low-income countries as classified by the World Bank. Empirical assessment was made in order... -
Early childhood socio-emotional development indicators: Pre-school teachers’ perceptions
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Tessa Goldschmidt --- Department of Psychology, South Africa Athena Pedro --- Department of Psychology, South AfricaThis study explored pre-school teachers’ classroom experiences of socio-emotional development in early childhood. Participants were twelve coloured/mixed race pre-school teachers from low-income communities in Cape Town, South Africa. The teachers completed semi-structured interviews focusing on their classroom experiences of socio-emotional... -
Present practices of rape care management in Thuthuzela Care Centres of the North West Province
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nombulelo Veronica Sepeng --- Faculty of Health Sciences, Prinshof Campus, School of Health Care Sciences, South Africa Lufuno Makhado --- Research Office, School of Health Sciences, South AfricaWe aimed to characterise practices of rape care management centres in a South African setting. Participants were rape survivors consulted in Thuthuzela care centres of the North West Province. They indicated which acute medical management they received when reporting rape,... -
Bone involvement in patients with cervical carcinoma: a single-institution cohort study
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: JL Butt --- Department of Obstetrics and Gynaecology, Tygerberg Hospital, South Africa MH Botha --- Department of Obstetrics and Gynaecology, Tygerberg Hospital, South AfricaIntroduction: Bony metastases in cervical carcinoma are rare; however, autopsy studies indicate that they are underdiagnosed. A retrospective study was undertaken to describe the risk factors and tumour characteristics and estimate the prevalence of bone involvement in women with cervical... -
Centring ordinary people: grounded approaches to land reform in Southern Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Maano Ramutsindela --- Environmental and Geographical Science, South Africa Andrew Hartnack --- Independent researcher and evaluation specialist, South AfricaThis introduction to the timely special issue of Anthropology Southern Africa examines land reform in the region, offering ethnographic perspectives on a subject often dominated by economists, lawyers and journalists. It points to the need for grounded approaches that go... -
Care, contagion and the good mother: narratives of motherhood, tuberculosis and healing
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Ziyanda Majombozi --- School of African and Gender Studies, Anthropology and Linguistics, South AfricaSouth Africa is reported as one of the countries with a high burden of tuberculosis (TB). In response to the epidemic, the country’s national Department of Health attempted to improve access to health care and TB treatment with a variety... -
Football and forlorn hope: an ethnographic comic concerning the Grahamstown Soccer Association from 1975 to 1985
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Shawn Forde --- School of Kinesiology, CanadaThis ethnographic comic presents research that was conducted in Makhanda (previously Grahamstown) in the Eastern Cape of South Africa. The comic only tells a partial story, based on ethnographic and historical research, relating to soccer, nostalgia, hope and violence. It... -
Interactional Therapy: Prospects for treating mental health conditions
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kobus du Plooy --- Community Psychosocial Research (COMPRES), South AfricaThis practice-oriented article proposes Interactional Therapy (IT) for the treatment of mental health conditions. A case example illustrates the IT application and purpose. From this example, IT appears to be of incremental advantage for treating mental health conditions. Additionally, a... -
Ethiopian immigrants to Israel: The persistence and transformation of African values and practices in art and life
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Patricia M. Greenfield --- Department of Psychology, USA Oshrat Sulika Rotem --- Department of Education, Israel Michael Weinstock --- Department of Education, IsraelWe present a qualitative interdisciplinary study of seven Ethiopian potters who immigrated to Israel as adults. Data sources include cultural products (their clay sculptures), interviews, and archival photos at the time of immigration. Together these data sources show how these... -
Students’ psychological hardiness in relation to career adaptability
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Velly Ndlovu --- Department of Human Resource Management, South Africa Nadia Ferreira --- Department of Human Resource Management, South AfricaThis study explored the relationship between psychological hardiness and career adaptability of students at Technical and Vocational Education and Training (TVET) Colleges. Participants were a convenience sample of 198 college students, predominantly single (96.0%), female (57.6%), black African students (92.9%),... -
Traditional healing and counselling services partnership in multicultural South Africa: A multiple case study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Petro van der Merwe --- Department of Psychology, South AfricaThis study explored partnership opportunities between traditional healing and counselling psychology services in South Africa. Informants comprised a traditional healer and two counselling psychologists who completed interviews on practices in which they engaged and that could be bridged for the... -
Characterisation of selected micro-estuaries and micro-outlets in South Africa using microalgal, zooplanktonic and macrozoobenthic assemblages
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ML Magoro --- South African Institute for Aquatic Biodiversity, South Africa T Dalu --- South African Institute for Aquatic Biodiversity, South Africa LRD Human --- Department of Botany, South Africa R Perissinotto --- DST/NRF SARChI Chair in Shallow Water Ecosystems, South Africa SHP Deyzel --- South African Environmental Observation Network (SAEON), South Africa TH Wooldridge --- Department of Zoology, Institute for Coastal and Marine Research (CMR), South Africa JB Adams --- DST/NRF SARChI Chair in Shallow Water Ecosystems, South Africa AK Whitfield --- South African Institute for Aquatic Biodiversity, South AfricaSouth Africa has approximately 200 micro-estuaries and micro-outlets along its more than 3 000 km of coastline. Many of these microsystems (i.e. micro-outlets and micro-estuaries) share some characteristics with temporarily open/closed estuaries, but differ in that they are supplied by... -
Effects of human disturbance and altitudinal gradient on myriapod species richness and abundance at Mount Kala, central Cameroon
Item type: Journal Article • Journal: African Zoology • Authors: PS Mbenoun Masse --- Laboratoire de Zoologie, Cameroon SD Makon --- Laboratoire de Zoologie, CameroonMyriapods are remarkably diverse and encompass many endemic species, yet they remain poorly studied in Cameroon. We investigated the influence of anthropogenic activities on myriapod assemblage structures along an altitudinal gradient at Mount Kala. Myriapods were collected by pitfall trapping,... -
Using mark-recapture methods to estimate population size and survival of pyjama sharks Poroderma africanum in Mossel Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SP Grusd --- Department of Biological Sciences and the Marine Research Institute, South Africa CL Moloney --- Department of Biological Sciences and the Marine Research Institute, South Africa G Distiller --- Statistics in Ecology, Environment and Conservation (SEEC), Department of Statistical Sciences, South Africa RGA Watson --- Oceans Research, South Africa PD Cowley --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa E Gennari --- Oceans Research, South AfricaThe pyjama shark Poroderma africanum (family Scyliorhinidae) is endemic to coastal waters of South Africa but its population characteristics are poorly known. This study aims to estimate baseline demographic parameters for P. africanum in Mossel Bay. We applied mark-recapture methods... -
Population structure and growth of the beaked clam Eumarcia paupercula (Bivalvia, Veneridae) in Maputo Bay, Mozambique
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ED Mugabe --- Centre of Coastal Studies and School of Marine and Coastal Sciences, Mozambique CA Amoda --- Centre of Coastal Studies and School of Marine and Coastal Sciences, Mozambique CL Griffiths --- Marine Research Institute and Department of Biological Sciences, South AfricaThe edible beaked clam Eumarcia paupercula (Holten, 1802) is an abundant component of the intertidal infauna in Maputo Bay, Mozambique, and is an important source of food and income for local communities. This study investigates the population structure and estimates... -
A snapshot assessment of the diet of Cape fur seals Arctocephalus pusillus pusillus at Ilha dos Tigres, Angola
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Winkler --- Department of Ichthyology and Fisheries Science, South Africa S Mannheim --- Department of Ichthyology and Fisheries Science, South Africa A-R Childs --- Department of Ichthyology and Fisheries Science, South Africa C Santos --- Biologia Faculdade de Ciências, Angola C de Beer --- Department of Ichthyology and Fisheries Science, South Africa MJ Smale --- Department of Zoology and Institute for Coastal and Marine Research, South Africa WM Potts --- Department of Ichthyology and Fisheries Science, South AfricaThe population of Cape fur seal Arctocephalus pusillus pusillus at Ilha dos Tigres off the coast of southern Angola is expanding. Until now the only available biological information on the population has been its demographic parameters, and this insufficiency has... -
Vachellia sieberiana var. woodii, a high-altitude encroacher: the effect of fire, frost, simulated grazing and altitude in north-western KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Jennifer M Russell --- School of Life Sciences, South Africa Michelle J Tedder --- School of Life Sciences, South Africa Stuart Demmer --- School of Life Sciences, South AfricaSavannas and grasslands throughout the world are experiencing bush encroachment, which has serious consequences for net primary productivity. In South Africa, Vachellia sieberiana is encroaching into the savannas and high-altitude grasslands of KwaZulu-Natal. We investigated the role of fire, frost... -
Integrated influence of soil tillage, nitrogen–potassium fertiliser and mulching on pineapple (Ananas comosus (L.) Merr.) growth and yield
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Elvire L Sossa --- Research Unit of Eco-Pedology, Laboratory of Soil Sciences, Faculty of Agronomic Sciences, Benin Codjo E Agbangba --- Laboratory of Research in Applied Biology, Department of Environmental Engineering, Polytechnic School of Abomey-Calavi, Benin Guillaume L Amadji --- Research Unit of Eco-Pedology, Laboratory of Soil Sciences, Faculty of Agronomic Sciences, Benin Kossi E Agbossou --- Laboratory of Hydraulic and Water Control, Faculty of Agronomic Sciences, Benin Djidjoho J Hounhouigan --- Laboratory of Nutrition and Food Sciences, Faculty of Agronomic Sciences, BeninPineapple is one of the most important fruit in the world and its production requires appropiate cultural practices. This work aimed to investigate the influences of soil tillage, nitrogen–potassium (N-K) fertiliser and mulching on pineapple growth and yield. The experimental... -
Phytochemical screening and antimicrobial investigation of Moringa oleifera leaf extracts
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Oluwole Solomon Oladeji --- Department of Physical Sciences, Faculty of Pure and Applied Sciences, PMB 1001, Km 4, Ipetu Road, Omu-Aran, Kwara State, Nigeria Kehinde Abraham Odelade --- Department of Microbiology, Faculty of Natural and Agricultural Sciences, Private Bag X2046, Mmabatho 2735, South Africa Julius Kola Oloke --- Department of Pure and Applied Biology, PMB 4000, Ogbomoso, Oyo State, NigeriaPhytochemical screening and antimicrobial analysis of Moringa oleifera leaf collected from Ogbomoso, Nigeria were carried out. The secondary metabolites in M. oleifera leaf were extracted by maceration using chloroform, ethyl acetate and ethanol. Some important bioactive compounds or metabolites in... -
Social capital development as innovation in human resource development: A case of Technical Universities in Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Tabita Ladzeh Akpey-Mensah --- Faculty of Management Sciences, South AfricaSocial capital expresses the social relationship between people in an organization. A good relationship between employers and employees can enhance commitment and productivity. It also makes a positive contribution to organizational performance. Universities and other higher education institutions are the... -
Mediation effect of perceived organisational and social support in the relationship between career adaptability and career satisfaction among professional women
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ndayiziveyi Takawira --- Department of Human Resource Management, South AfricaThis study examined whether perceived organisational support (POS) and social support mediated the relationship between career adaptability and career satisfaction among professional women. The participants were a purposive sample of 606 professional women (62% = white, 20% = black African,... -
Report of suspected kidnapping in cooperative breeding Southern Ground-Hornbill in South Africa with consequences for conservation reintroductions
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Lucy V Kemp --- Mabula Ground Hornbill Project, South Africa Paige F Ezzey --- Mabula Ground Hornbill Project, South AfricaKidnapping in avian species is a rarely observed phenomenon and warrants greater investigation. Kidnapping, reported for some cooperative breeding birds and mammals, has now been confirmed for the Southern Ground-Hornbill Bucorvus leadbeateri and has implications for management of reintroductions of... -
Compassion capability in resource-limited organizations in South Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Katherine J. Train --- Graduate School of Business, South Africa Kurt April --- Graduate School of Business, South AfricaCompassion in organizations benefits the giver and receiver of compassion, and the organization as a whole. Organizations with resource limitations, however, face risks and liabilities for compassion organizing. In South Africa, an emerging economy with a challenged socioeconomic environment, human... -
Long-term outcomes in perinatally HIV-infected adolescents and young adults on antiretroviral therapy: a review of South African and global literature
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kim Anderson --- School of Public Health and Family Medicine, South Africa Rudzani Muloiwa --- Department of Paediatrics, South Africa Mary-Ann Davies --- School of Public Health and Family Medicine, South AfricaPaediatric antiretroviral programmes have been implemented globally for more than a decade, yet information on long-term treatment outcomes in perinatally HIV-infected adolescents is limited. Published literature on long-term treatment outcomes was reviewed, including virologic, immunologic and growth outcomes, as well... -
Levels and determinants of HIV testing uptake among Ghanaian men
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Samuel H Nyarko --- Department of Demography, College of Public Policy, USA Corey Sparks --- Department of Demography, College of Public Policy, USAThe uptake of HIV testing has always been found to be lower among men compared with women in many developing countries. The aim of this study was to ascertain the level and determinants of HIV testing uptake among men aged... -
Maternal HIV status disclosure to young uninfected children: psychological variables of the mother
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Maretha Visser --- Department of Psychology, South Africa Amukelani Jennifer Hlungwani --- Department of Psychology, South AfricaMothers living with HIV are faced with the dilemma of when and how to disclose their HIV-positive status to their young uninfected children. In this study, a South African sample of mothers living with HIV, with young uninfected children (6–10... -
Megaherbivore response to droughts under different management regimes: lessons from a large African savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Izak PJ Smit --- , South Africa Mike JS Peel --- , South Africa Sam M Ferreira --- , South Africa Cathy Greaver --- , South Africa Danie J Pienaar --- , South AfricaDroughts are predicted to increase in frequency and intensity for large parts of Africa. It is unclear how this may impact native grazers in protected areas, and how these outcomes may differ under contrasting management approaches. Reducing artificial water sources... -
Observations on the natural history of a savanna drought
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Izak PJ Smit --- , South Africa William J Bond --- , South AfricaDrought studies are often opportunistic and post hoc, where a drought fortuitously occurs during a research project that was not specifically designed to study the drought, but where researchers capitalised on the opportunity. These studies often lack focus on formulating... -
A pedogenetic method for land type survey disaggregation into soil association maps
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: George Munnik van Zijl --- , South Africa Christina Botha --- , South AfricaThere is an increasing demand worldwide for spatial soil information. Unfortunately, gathering new soil data is expensive, leading to a focus on extracting detailed information from existing datasets. The most extensive dataset in South Africa is that of the land... -
Capitalizing on digital literacy skills for capacity development of people who are not in education, employment or training in South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Walter Matli --- Department of Information and Communication Technology, South Africa Mpho Ngoepe --- Department of Information Sciences, South AfricaMost people from rural and township areas in South Africa do not have skills in utilizing information and communication technology (ICT), particularly those who are not in education, employment or training (NEET). Addressing the gap of ICT skills is one... -
The primacy of innovation capacities in the NIS of the Maghreb countries: An analysis in terms of learning capacity in Morocco, Tunisia and Algeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Vanessa Casadella --- Department of Economics, France Rédha Younes Bouacida --- Faculty of Economics, Business and Management Sciences, Department of Economic Sciences, AlgeriaThe building of innovative capacities has become essential in the objectives of development and economic growth. While there has been a lot of literature on the construction and analysis of innovation systems in the Maghreb economies, it is less common... -
Review of fish life history strategies associated with warm temperate South African estuaries and a call for effective integrated management
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NA Strydom --- Department of Zoology, South Africa Y Kisten --- Department of Zoology, South AfricaRefuge and feeding areas for young fish in estuaries are important for the survival of fish and replenishment of coastal fish stocks, particularly in the temperate south east coast of southern Africa. Larvae and juveniles of important fishery species recruit... -
Ethnographic evidence versus theoretical models: reminiscences and reflections on a linear proletarianisation model for Southern Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Andrew D. Spiegel --- , South AfricaConceptualising what was seen as the proletarianisation of Southern Africa’s working people was a significant analytical preoccupation of the social sciences in the 1970s. Considering that the region’s political economy was dependent on migrant labour, anthropologists and others sought to... -
Xenopus laevis as UberXL for nematodes
Item type: Journal Article • Journal: African Zoology • Authors: Anneke L Schoeman --- African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, South Africa Tracy-Lee Joubert --- African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, South Africa Louis H du Preez --- African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, South Africa Roman Svitin --- African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, South AfricaThe effect of invasive species on local parasite dynamics is often overlooked. The African Clawed Frog Xenopus laevis (Daudin, 1802) (Anura: Pipidae) is a global invader, with established populations on four continents and is a domestic exotic in southern Africa... -
Local ecological knowledge demonstrates shifting baselines and the large-scale decline of sawfishes (Pristidae) in Tanzania
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Braulik --- University of St Andrews, United Kingdom M Kasuga --- Wildlife Conservation Society Tanzania Program, Tanzania G Majubwa --- Ambakofi, TanzaniaSawfishes are coastally distributed rays that grow to very large sizes. All five species are assessed as Endangered or Critically Endangered as a result of population declines caused mainly by entanglements in fishing gear and by habitat degradation. Three species... -
Chondrichthyans as an umbrella species-complex for conserving South African biodiversity
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GJ Osgood --- Department of Biology, Canada ME McCord --- South African Shark Conservancy (SASC), South Africa JK Baum --- Department of Biology, CanadaConservation surrogates, such as umbrella and flagship species, could help focus South Africa’s limited resources for research and management and enhance the conservation gains from marine protected areas (MPAs). Sharks, rays and chimaeras (Chondrichthyes), which are charismatic and ecologically diverse,... -
Mapping subtidal estuarine habitats with a remotely operated underwater vehicle (ROV)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Wasserman --- Botany Department, DST/NRF Research Chair in Shallow Water Ecosystems, South Africa L Claassens --- Department of Zoology and Entomology, South Africa JB Adams --- Botany Department, DST/NRF Research Chair in Shallow Water Ecosystems, South AfricaSubtidal habitats have not yet been accounted for in habitat maps of South African estuaries. In this study, a novel method for mapping subtidal estuarine habitats, using a remotely operated underwater vehicle (ROV) piloted from a boat, was developed and... -
Use of openly available occurrence data to generate biodiversity maps within the South African EEZ
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Yemane --- Department of Environment, Forestry and Fisheries (DEFF), South Africa SP Kirkman --- Department of Environment, Forestry and Fisheries (DEFF), South Africa T Samaai --- Department of Environment, Forestry and Fisheries (DEFF), South AfricaBiodiversity maps are an important component of ecosystem-based management and conservation. In the past, biodiversity maps were largely generated using patchy occurrence data from a range of data sources. Currently, substantial species occurrence data are readily available for large parts... -
Vulnerability, institutional arrangements and the adaptation choices made by farmers in the Western Cape province of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sanne Raaijmakers --- Fagelstraat 75-HS, the Netherlands Pieter A Swanepoel --- Department of Agronomy, South AfricaFrom 2015 to 2018, South Africa suffered from the worst drought since 1904. Climate change is predicted to increase both the frequency and intensity of droughts in parts of South Africa. In this light it is evident that agricultural systems... -
Comparative methods for predicting cyanide pollution in artisanal small-scale gold mining catchment by using logistic regression and kriging with GIS
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: L. C. Razanamahandry --- International Institute for Water and Environmental Engineering (2iE), Department of Water and Sanitary Engineering, Laboratory of Water, Burkina Faso P. M. Digbeu --- International Institute for Water and Environmental Engineering (2iE), Department of Water and Sanitary Engineering, Laboratory of Water, Burkina Faso H. A. Andrianisa --- International Institute for Water and Environmental Engineering (2iE), Department of Water and Sanitary Engineering, Laboratory of Water, Burkina Faso H. Karoui --- International Institute for Water and Environmental Engineering (2iE), Department of Water and Sanitary Engineering, Laboratory of Water, Burkina Faso J. Podgorski --- Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Switzerland E. Manikandan --- UNESCO-UNISA Africa Chair in Nanoscience’s/Nanotechnology Laboratories (U2AC2N), College of Graduate Studies, South Africa M. Maaza --- UNESCO-UNISA Africa Chair in Nanoscience’s/Nanotechnology Laboratories (U2AC2N), College of Graduate Studies, South Africa H. Yacouba --- International Institute for Water and Environmental Engineering (2iE), Department of Water and Sanitary Engineering, Laboratory of Water, Burkina FasoIt has been reported that persistent cyanide pollution occurs in artisanal small-scale gold mining (ASGM) catchment areas in Burkina Faso. In the present study, logistic regression (LR) and Regression Kriging (RK) methods were applied to predict cyanide pollution hazard at... -
Assessment of vulnerability to groundwater pollution in Department of Odienné (North-West Côte d’Ivoire)
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Oi Mangoua Jules Mangoua --- Laboratory of Environmental Sciences and Technologies, Côte d’Ivoire Kouamé Auguste Kouassi --- Laboratory Geosciences and Environment, Côte d'Ivoire Williams Francis Kouassi --- Laboratory Geosciences and Environment, Côte d'Ivoire Gountôh Aristide Douagui --- Laboratory Geosciences and Environment, Côte d'Ivoire Issiaka Savane --- Laboratory Geosciences and Environment, Côte d'Ivoire Jean Biemi --- Laboratory of Sciences and Techniques of Water and Environment, Côte d'IvoireDrinking water supply to populations is increasingly oriented towards the exploitation of groundwater whose quality meets WHO standards. However, groundwater is subjected to a pollution phenomenon of anthropogenic origin due to agro-industrial and mining operations that alter water quality. The... -
BirdLasser: The influence of a mobile app on a citizen science project
Item type: Journal Article • Journal: African Zoology • Authors: Alan Tristram Kenneth Lee --- , South Africa Henk Nel --- , South AfricaIn recent decades, people across the world have adopted ‘smart-phones’ and their technology. Software applications on these devices have become diverse in their functionality and easy to use. Citizen science projects that try to mobilise data collection from people from... -
A review of vulvar carcinoma at Groote Schuur hospital for the period 2002 to 2012 with particular emphasis on HPV-related disease
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Francisca E Loggenberg --- , South Africa Tracey S Adams --- , South AfricaBackground: Vulvar carcinoma is rare and ranks fourth amongst the gynaecological malignancies. GLOBOCAN reported 44 235 new cases in 2018. There has been a rise in the number of cases of vulvar carcinoma in recent years and younger women are... -
Breakfast consumption and its relationship to sociodemographic and lifestyle factors of undergraduate students in the School of Health Sciences at the University of KwaZulu-Natal
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Raeesa Seedat --- , South Africa Kirthee Pillay --- , South AfricaObjectives: A study was undertaken to investigate breakfast consumption and the sociodemographic and lifestyle profile of undergraduate students in the School of Health Sciences at the University of KwaZulu-Natal (UKZN), and to determine if these factors are related to body... -
Contesting the Subaltern Narrative: The Trickster Trope in the Kenyan Political Autobiography
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Stephen Mutie --- , KenyaThis article is a critique of the idea of subalternity 1 as it is used in the Kenyan political autobiographies of leaders who have reigned but never ruled. 2 The study is largely located within postcolonial theory, with particular emphasis... -
Bank sensitivity to international regulatory reform: The case of Korea
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Doojin Ryu --- , Republic of Korea Robert I. Webb --- , United States of America Jinyoung Yu --- , Republic of KoreaThis study examines the reaction of Korean banks’ procyclical behaviour to the adoption of the Basel III accord, which imposes a global capital framework on banks, and the sensitivity of Korean banks’ reactions depending on their capital structures prior to... -
Psychological career resources as explanatory mechanisms of employee adaptive career concerns across the career-life period
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Melinde Coetzee --- , South Africa Ashlin Govender --- , South AfricaThis study explored employee psychological resources as explanatory mechanisms of their adaptive career concerns. Participants were 315 predominantly black (39%) and female (70%) working adults (mean age = 37 years; SD = 9.77 years) employed in the South African services... -
Value co-creation effects on transaction cost, relational capital, and loyalty of hair salon customers: Results and implications of a Ghanaian study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Wen Xiao --- , China Christian Narh Opata --- , China Stephen Tetteh --- , China Tettey-Wayo John Narh --- , Ghana Robert E. Hinson --- , GhanaThis study aimed to examine customer relational capital, transaction cost, and loyalty with value co-creation in the Ghanaian hair-dressing business sector. Participants were 455 female hair-dressing customers (mean age = 2.56 years, SD = 1.07 years, age range 22 to... -
Media images and the gendered representation of chefs
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Beverly (Shih-Yun) Chen --- , New Zealand Alison McIntosh --- , New Zealand Candice Harris --- , New Zealand Warren Goodsir --- , New ZealandImages portrayed in online media may influence societal perceptions of chefs, with the potential to perpetuate gender segregation in the professional kitchen. Little scholarly attention in previous research has been given to the examination of gender and images in hospitality... -
Exploring the key components of a contemporary hospitality servicescape: Architecture, theology and community
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Peter Singleton --- , The Netherlands Erwin Losekoot --- , The NetherlandsThis article aims to contribute to the theoretical understanding of the hospitality servicescape. Through this analysis this article makes recommendations to managers on how they can set about creating a genuine sense of welcome and hospitality in a contemporary setting... -
Happiness at work: a phenomenological study of the experiences of hospitality industry employees
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Anne Eline Frederique Melief --- , The Netherlands Jan Arend Schulp --- , The Netherlands Marte Rinck de Boer --- , The NetherlandsThough happiness might be an interesting factor to consider in the discussion on retaining employees, only a limited number of studies on happiness of hospitality employees has been done. This master’s thesis study, rooted in the tradition of the interpretative... -
Living excluded from the world: essentialism in development discourse and its percolation into Santomean self-perceptions
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Nicola Soekoe --- , South AfricaUsing an analysis of development discourse in and about São Tomé and Príncipe (STP), this article aims to trace the relationship between sociocultural constructions of difference and socio-economic structures of exclusion in the global development project. Using ethnographic data from... -
Using action cameras to estimate the abundance and habitat use of threatened fish in clear headwater streams
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: B Hannweg --- , South Africa SM Marr --- , South Africa LE Bloy --- , South Africa OLF Weyl --- , South AfricaSnorkel and electrofishing surveys are the traditional baseline methods for fish surveys in clear headwater streams. However, action cameras provide a non-harmful alternative to monitor freshwater fish populations to develop informed conservation management initiatives. In this paper, estimates from photographs... -
Relative growth of invasive and indigenous tilapiine cichlid fish in Tanzania
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SJ Bradbeer --- , United Kingdom BP Ngatunga --- , Tanzania GF Turner --- , United Kingdom MJ Genner --- , United KingdomNon-native species have been widely distributed across Africa for the enhancement of capture fisheries, but it can be unclear what benefits in terms of fisheries production the non-native species bring, compared with native species. Here we compared the relative growth... -
The effect of planting density on the stem form of Pinus patula trees
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: RA Charlton --- , South Africa Z Naghizadeh --- , South Africa A Kunneke --- , South Africa CB Wessels --- , South AfricaIn this study the effect of planting density on the stem form of Pinus patula trees was investigated. Four different spacing treatments of 403, 1 097, 1 808, and 2 981 stems per hectare (spha), and four stem form properties... -
Tourism resources and carrying capacity of scenic tourism areas based on forest ecological environment
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Qiong Sun --- , China Naicong Zhang --- , China Zheng Liu --- , China Bin Liao --- , ChinaThe development of society promotes the development of forest scenic tourism areas. In order to further realise the scientific and rational development of forest scenic tourism areas, it is necessary to analyse their tourism resources and carrying capacity. This paper... -
Potential release sites and strategies for a Bearded Vulture Gypaetus barbatus reintroduction in South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Christiaan W Brink --- , South Africa Sonja Krüger --- , South Africa Arjun Amar --- , South AfricaThe southern African population of Bearded Vultures Gypaetus barbatus has declined rapidly and it is threatened with extinction. In response to this decline and the additional threats of wind farm developments in the core of the species’ range, it has... -
Citizen science in South Africa: a personal perspective
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: James A Harrison --- , South AfricaThe author recalls some of the achievements of the first Southern African Bird Atlas Project and other citizen science projects that were run by the Animal Demography Unit (then the Avian Demography Unit, ADU). The traditional motivation for such projects... -
Pied Crows in the Eastern Cape: what bird club records reveal
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adrian JFK Craig --- , South Africa Patrick E Hulley --- , South AfricaPublished records by bird clubs in Port Elizabeth, Kenton-on-Sea and Grahamstown (Makhanda) show that until 1980 Pied Crows were seldom recorded in this sector of the Eastern Cape, South Africa. Port Elizabeth, and apparently also East London, was colonised by... -
COVID-19 and citizen science: lessons learned from southern Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sanjo Rose --- , South Africa Jessleena Suri --- , South Africa Michael Brooks --- , South Africa Peter G Ryan --- , South AfricaThe COVID-19 lockdown has had a marked effect on citizen science projects, such as the Southern African Bird Atlas Project, SABAP2. With their mobility severely constrained, most citizen scientists in South Africa were not able to submit full protocol lists... -
Effect of land terracing on soil physical properties across slope positions and profile depths in medium and high altitude regions of Rwanda
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Aloys Fashaho --- , Rwanda George M Ndegwa --- , Rwanda Joyce J Lelei --- , Kenya Amos O Musandu --- , Kenya Samuel M Mwonga --- , KenyaAlthough land terracing is promoted as a management practice for effective soil conservation in hilly areas, construction of terraces causes changes in soil properties. This study evaluated the effect of land terracing on some soil physical properties across slope positions... -
Sustainable shellfish aquaculture in Saldanha Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Santa Marta --- , United Kingdom JG Ferreira --- , United Kingdom GC Pitcher --- , South Africa J Lencart e Silva --- , United KingdomThe carrying capacity for bivalve shellfish culture in Saldanha Bay, South Africa, was analysed through the application of the well-tested EcoWin ecological model, in order to simulate key ecosystem variables. The model was set up using: (i) oceanographic and water-quality... -
Distribution and abundance patterns of two parapagurid hermit crabs (Crustacea: Decapoda: Anomura) along the west and south coasts of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AG Wright --- , South Africa CL Griffiths --- , South Africa TP Fairweather --- , South AfricaA series of over 6 000 research-trawl samples collected along the west and south coasts of South Africa between 1987 and 2014 were analysed for the presence and biomass of two parapagurid hermit crabs, Sympagurus dimorphus and Parapagurus bouvieri. The... -
Zoogeography of marine Bryozoa around South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MK Boonzaaier-Davids --- , South Africa WK Florence --- , South Africa MJ Gibbons --- , South AfricaThe zoogeography of marine Bryozoa around South Africa was investigated using published distribution records, museum catalogues, and an examination of previously unworked bryozoan material in (mostly) museum collections. Although a total of 276 valid species are recognised, it was not... -
Latitudinal changes in siphonophore assemblages across the Atlantic sector of the Southern Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Kuyper --- , South Africa D Thibault --- , France MJ Gibbons --- , South AfricaSiphonophores are commonly considered to be useful indicators of water masses and water-mass movement, but their employment as such across the wider Southern Ocean has not so far been attempted. We redress this here using archived samples, collected during January–February... -
Tobacco use and subjective well-being in university students from 29 countries: A brief report
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- , Thailand Karl Peltzer --- , South AfricaThis cross-national study explored the relationship between tobacco use and subjective well-being indicators (e.g. life satisfaction, happiness, and perceived health status) in university students from 29 low-, middle- and high-income countries. Data were collected from 20 355 university students (median... -
Pre-displacement stressors, psychological morbidity, and PTSD symptoms among displaced women by Boko-Haram in North-East Nigeria: The buffering roles of psychological capital
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Erhabor S. Idemudia --- , South Africa Babatola D. Olawa --- , South Africa Gail E. Wyatt --- , USA Norweeta Milburn --- , USAWe utilised a cross-sectional survey design to examine the moderating roles of dimensional psychological capital (PsyCap) and pre-displacement stressors on the relationship between psychological morbidity and severity of PTSD symptoms among internally displaced (IDP) women from terrorist activity. Participants were... -
Updated checklist and assemblages of grasshoppers (Orthoptera: Acridomorpha) associated with various habitats, including oases of Central Sahara in Algeria
Item type: Journal Article • Journal: African Zoology • Authors: Abderrahmane Soudani --- , Algeria Abdelhamid Moussi --- , AlgeriaThe grasshopper communities of central Saharan ecosystems (Adrar region, Algeria) were studied at two scales: the first scale considered different biotopes in 23 localities. Random sampling with different traps from February 2016 to February 2019 made it possible to capture... -
Belonging, Memory and Subaltern Voices: Reflecting on Sindiwe Magona’s To my Children’s Children
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Puleng Segalo --- , South AfricaFor many black people, the act of writing and expressing one’s thoughts was an exercise of resistance and defiance, one that often meant risking losing one’s freedom or one’s life. Sindiwe Magona’s works challenge the commonly held assumption that writing... -
Impact of climate change on yield and water use efficiencies of potato in different production regions of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: AC Franke --- , South Africa LN Muelelwa --- , South Africa JM Steyn --- , South AfricaIn South Africa, the potato is produced in regions with different climates. Climate change is expected to result in higher temperatures, thus increasing the incidence of heat stress, but lowering the risk of frosts in mid-altitude areas. Increasing ambient carbon... -
Ranging behaviour of Long-crested Eagles Lophaetus occipitalis in human-modified landscapes of KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Machawe I Maphalala --- , South Africa Ara Monadjem --- , Eswatini Keith L Bildstein --- , South Africa Shane McPherson --- , South Africa Ben Hoffman --- , South Africa Colleen T Downs --- , South AfricaThe ranging behaviour of raptors in human-altered environments, such as agricultural and suburban landscapes, is becoming increasingly important for conservationists in the context of unprecedented high rates of anthropogenic land use change. We studied the movement ecology of adult Long-crested... -
Observations of Southern Ground-Hornbill Bucorvus leadbeateri groups in the Kafue National Park, Zambia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jonah Gula --- , United States Chaona G Phiri --- , United KingdomZambia represents a core part of the Southern Ground-Hornbill’s Bucorvus leadbeateri distribution, yet empirical information on the country’s population is scant. From February to September 2017, ground-hornbill sightings were recorded in Kafue National Park in western Zambia to describe population... -
Utilization of collapsible fish tank innovation among homestead fish farmers in Osun State, Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Idris Olabode Badiru --- , Nigeria Theophilus Opeyemi Amure --- , NigeriaThis study ascertained the utilization of collapsible fish tanks among homestead fish farmers in Osun State of Nigeria. A structured questionnaire was used to elicit data on fish farmers’ awareness, disposition, influencing/limiting factors and utilization of the fish tank innovation... -
Characterisation of ecosystem-based adaptations to drought in the central cattle corridor of Uganda
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Susan Nanfuka --- , Uganda David Mfitumukiza --- , Uganda Anthony Egeru --- , UgandaEcosystems provide climate-change adaptation opportunities including ecosystem services, adaptation benefits and livelihood improvement especially for natural resource dependent communities. To contribute to the understanding of location specific adaptation processes of predominantly agro-pastoralists, a study was carried out in the central... -
Cadmium and lead levels in three freshwater fish species from the Zambezi region, Namibia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: O Madzingira --- , Namibia LZ Lifumbela --- , Namibia E Kandiwa --- , Namibia L Kandjengo --- , Namibia B Mushonga --- , NamibiaMuscle tissue from three-spotted tilapia (Oreochromis andersonii) (n = 11), sharp tooth catfish (Clarias gariepinus) (n = 14) and tigerfish (Hydrocynus vittatus) (n = 12) were sampled from a market in the Zambezi region, Namibia in June 2018 and analysed... -
Accounting for linefish dependency in management of the South African small pelagic fishery
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Parker --- , South Africa JC Coetzee --- , South Africa H Winker --- , South Africa CD van der Lingen --- , South AfricaTo further implement an ecosystem approach to management of the small pelagic fishery in South Africa, we attempted to develop functional relationships between spatialised time-series of the biomass of three small pelagic fish species and the catch per unit effort... -
High genetic diversity and limited spatial structure in an endangered, endemic South African sparid, the red steenbras Petrus rupestris
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Gouws --- , South Africa SE Kerwath --- , South Africa WM Potts --- , South Africa NC James --- , South Africa NG Vine --- , South Africa PD Cowley --- , South AfricaThe red steenbras Petrus rupestris is endemic to South Africa, occurring from False Bay in the Western Cape Province to St Lucia in the province of KwaZulu-Natal. This species, the largest member of the family Sparidae, has undergone a substantial... -
Life-history trade-offs among four sympatric seabreams
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CG Attwood --- , South Africa HAM Ensair --- , South AfricaFish life history is shaped by environmental and ecological circumstances but constrained by phylogeny. Life-history trade-offs can be exposed in a comparison of closely related species with similar niches. We compare the life histories of four closely related and similar-sized,... -
Movements and growth rates of the broadnose sevengill shark Notorynchus cepedianus in southern Africa: results from a long-term cooperative tagging programme
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TM Engelbrecht --- , South Africa AA Kock --- , South Africa MJ O’Riain --- , South Africa BQ Mann --- , South Africa SW Dunlop --- , South Africa A Barnett --- , AustraliaTop predators are important components of healthy ecosystems but are at risk of overexploitation due to insufficient data on life-history characteristics and population dynamics to guide management. We investigated the movements and growth rates of the broadnose sevengill shark Notorynchus... -
Experiential branded app engagement and brand loyalty: An empirical study in the context of a festival
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xi Li --- , China Xinwei Su --- , China YingChuan Wang --- , ChinaThis study investigated the mediating role of emotional responses and app engagement on the relationship between the perception of app features and brand loyalty. Participants were 417 Macao light festivalgoers (female = 53.2%; age range = 31–40 years old). Using... -
A framework for online investment decisions
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Andrew B. Paskaramoorthy --- , South Africa Tim J. Gebbie --- , South Africa Terence L. van Zyl --- , South AfricaThe artificial segmentation of the investment management process into silos of human operators can restrict silos from collectively and adaptively pursuing a unified investment goal. In this article, we argue that the investment process can be accelerated and be made... -
Consumer sentiment and time-varying betas: Testing the validity of the consumption CAPM on the Johannesburg Stock Exchange
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Javier Rojo-Suárez --- , Spain Ana Belén Alonso-Conde --- , SpainWe test both the conditional and unconditional versions of the consumption capital asset pricing model (CCAPM) on the Johannesburg Stock Exchange, for the period 1988–2018, and compare its performance with that of the CAPM and the Fama-French three- and five-factor... -
Mozambique Island, Cabaceira Pequena and the Wider Swahili World: An Archaeological Perspective
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Diogo V. Oliveira --- , MozambiqueWhen the Portuguese reached Mozambique Island at the end of the fifteenth century, they encountered a populated coast of diverse communities integrated within a wider Swahili world. Swahili society was in its fundamental nature cosmopolitan, and incorporated arts, cultures, peoples,... -
A Cowrie’s Life: The São Bento and Transoceanic Trade in the Sixteenth Century
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Justine Wintjes --- , South AfricaA collection of money cowries (Monetaria moneta) was discovered in the early 1980s inside a bronze cannon salvaged from the wreck site of the São Bento (1554), at the mouth of the Mzikaba River, Eastern Cape, South Africa. Using an... -
A Malagasy element in Continental Africa: a new subspecies of the rare Amauris nossima (Nymphalidae, Danainae) from the Kenyan coast
Item type: Journal Article • Journal: African Zoology • Authors: Tomasz W Pyrcz --- , Poland Steve Collins --- , Kenya Dorota Lachowska-Cierlik --- , Poland David C Lees --- , United Kingdom Szabolcs Sáfian --- , Hungary Klaudia Florczyk --- , PolandAmauris nossima Ward (Nymphalidae, Danainae) was known before this study only from Madagascar and the island of Mayotte, without clearly defined subspecies, but with five names considered invalid or infrasubspecific. It has generally been considered a rare species of butterfly... -
Adding another piece to the southern African Cercopithecus monkey phylogeography puzzle
Item type: Journal Article • Journal: African Zoology • Authors: Birthe Linden --- , South Africa Desiré L Dalton --- , South Africa Taryn MC Ralph --- , South Africa Isabel Silva --- , Mozambique Antoinette Kotze --- , South Africa Peter J Taylor --- , South AfricaThe taxonomy and number of Cercopithecus monkey radiation events in southern Africa are still debated. To date, genetic studies have largely been limited to single specimens per taxon and a scattered geographical distribution. A recent study focusing on South African... -
Interspecific competition for cliff ledges on the Magaliesberg between nesting Verreaux’s Eagles and roosting Chacma baboons
Item type: Journal Article • Journal: African Zoology • Authors: G Malan --- , South Africa K Padayachee --- , South AfricaAnimals that share suitable rock ledges located on near-vertical cliff faces are compelled to interact when using this scarce resource. Because interspecific and exploitative competition for suitable ledges may have a vital influence on the survival and reproduction of Verreaux’s... -
The reptiles of Tinhosa Grande islet (Gulf of Guinea): A taxonomic update and the role of Quaternary sea level fluctuations in their diversification
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Luis MP Ceríaco --- Universidade do Porto, Portugal Justin Bernstein --- Rutgers University-Newark, USA Ana C Sousa --- Universidade de Évora, Portuga Mariana P Marques --- Universidade de Lisboa, Portugal Aaron M Bauer --- Villanova University, USA Sietze J Norder --- Leiden University Centre for Linguistics, The NetherlandsThe reptile fauna of Tinhosa Grande islet, Gulf of Guinea, comprises an endemic skink, Trachylepis adamastor, and an unidentified species of gecko of the genus Hemidactylus. Until recently, no molecular data were available for either species, impeding their phylogenetic placement... -
The normal tax consequences of home swaps for residents owning property in the Republic of South Africa
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Magdel Zietsman --- , South Africa Andrea Herron --- , South Africa“Home swapping” has become more accessible due to a global phenomenon, known as the sharing economy. Technological advancement has removed the barriers to international trade and members of home swapping programmes exchange rights to provide each other with accommodation in... -
Organisational capital and graduate employability: A serial mediation analysis of human and personal-social capital
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nora Bakabbey Kulbo --- , China Xiao Wen --- , China Prince Clement Addo --- , ChinaWe explored three resource capitals related to employability (human, personal-social, and organisational) to explain graduate work entry prospects in a developing country setting. Our study sample consisted of 743 final year university students in Ghana and Kenya. Less than half... -
A cohort study of treatment outcomes after radiotherapy in vulva carcinoma patients
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: T Goba-Mjwara --- , South Africa H Simonds --- , South Africa -
Will Africapitalism work?
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Emmanuel Adegbite --- , UK Olabisi Daodu --- , UK Jacob Wood --- , SingaporeAfricapitalism suggests a refined capitalist system aimed at achieving collective good unlike the shareholder value maximization model of Anglo-American capitalism. It emphasizes the obligations of the private sector in Africa to pursue socio-economic development. Despite these proposed benefits, this paper... -
Social capital and performance of SMEs: The role of entrepreneurial orientation and managerial capability
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Suzzie Owiredua Aidoo --- , Ghana Ahmed Agyapong --- , Ghana Henry Kofi Mensah --- , GhanaThis study proposes and investigates the argument that social capital–performance link is mediated by entrepreneurial orientation (EO) and that this mediated relationship is dependent upon the level of managerial capability (MC) present in a firm. The study uses a sample... -
Pheromones as management tools for non-Scolytinae Curculionidae: development and implementation considerations
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Luki-Marie Scheepers --- , South Africa Jeremy D Allison --- , Canada Marc C Bouwer --- , South Africa Egmont R Rohwer --- , South Africa Bernard Slippers --- , South AfricaFor the large family Curculionidae, the number of species considered pests is expected to increase due to global movement of plant and soil material, as well as climate change. Pheromones are increasingly popular for use in pest management programmes, either... -
Spatial and ontogenetic variability in the diet and trophic ecology of two co-occurring catsharks (Scyliorhinidae) off South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GM van der Heever --- , South Africa CD van der Lingen --- , South Africa RW Leslie --- , South Africa MJ Gibbons --- , South AfricaThe Izak catshark Holohalaelurus regani and the yellow-spotted catshark Scyliorhinus capensis both occur over the continental shelf around South Africa and are often caught together as bycatch in demersal trawls. Yet our understanding of their diet is fragmented, which makes... -
Application of a general methodology to understand vulnerability and adaptability of the fisheries for small pelagic species in the Benguela countries: Angola, Namibia and South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: KL Cochrane --- , South Africa K Ortega-Cisneros --- , South Africa JA Iitembu --- , Namibia CI dos Santos --- , Angola WHH Sauer --- , South AfricaThe fisheries for small pelagic species in Angola, Namibia and South Africa fulfil important social and economic roles but have undergone substantial changes in recent years, some of which are likely to be related to climate change. This assessment of... -
Lobbyscape: A framework about the effect of hotel lobbies’ atmospheric elements on customer satisfaction
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Minoas Pytharoulakis --- , Greece Georgia Zouni --- , GreeceThis article aims to present a new conceptual model about the “lobbyscape” (i.e. the “servicescape” of hotel lobbies or foyers). A review of the existing literature, along with the authors’ expertise, provided four dimensions and 25 atmospheric elements for the... -
A characterisation of wetland soil types on the Maputaland Coastal Plain
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: ML Pretorius --- , CW van Huyssteen --- , LR Brown --- , AT Grundling --- , CT Downs --- ,This paper addresses the shortage of wetland soil data on the Maputaland Coastal Plain. It does so by investigating the relationship between wetland types, slope position and soil properties. Four wetland types (a valley-bottom system, perched pans, hygrophilous grasslands and... -
Physical properties of Tectona grandis (Lamiaceae) juvenile wood thermally modified in a closed system
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Natália A Cunha --- , Brazil Tiago A Gales --- , Brazil Amanda M Nunes --- , Brazil Glaucileide Ferreira --- , Brazil Thaís M Brito --- , Brazil Adriano Ribeiro de Mendonça --- , Brazil Djeison C Batista --- , BrazilThis paper reports the first results of the effect of an industrial closed-system thermal modification process on the physical properties of fast-growth teak wood (Tectona grandis L.f.). The wood (juvenile) came from thinning a 15–18-year-old plantation located in Mato Grosso... -
Impact of the 2008 wage review on the public-private sector wage-gap in Cameroon
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ebenezer Lemven Wirba --- , Cameroon Fiennasah Annif’ Akem --- , Cameroon Francis Menjo Baye --- , CameroonThis paper examines the impact of the 2008 wage review on the public-private sector wage-gap in Cameroon. Specifically, the paper evaluates the determinants of participating in the labour market and choosing formal sector employment; assesses the correlates of wages in... -
Understanding the relevance of indigenous knowledge on climate change adaptation among mixed farmers in the Ngono River Basin, Tanzania
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Theobald Frank Theodory --- , TanzaniaClimate change poses major threats to people and ecosystems. In many areas, climate change impacts have affected the availability of basic necessities including freshwater, food security, and energy. Developing countries are more adversely impacted by climate change and are less... -
How stable is the tuft structure of a mesic Drakensberg grassland under various burning regimes?
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Terry M Everson --- , South Africa Colin S Everson --- , South Africa Craig D Morris --- , South AfricaManagement options to maintain the stability of Drakensberg grasslands need to incorporate their dynamic nature in response to fire. This study addressed the lack of information on the spatial and temporal changes of these grasslands at a small (tuft) scale... -
Accounting for land cover changes and degradation in the Katse and Mohale Dam catchments of the Lesotho highlands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Jane Turpie --- , South Africa Grant Benn --- , South Africa Mark Thompson --- , South Africa Nigel Barker --- , South AfricaRangeland conditions in the Lesotho highland dam catchment areas is important for local livelihoods and regional water supply. We investigated changes in land cover and condition from 1991 (before construction) to 2013, using Landsat imagery. The Normalised Difference Vegetation Index... -
Assessing wetland functionality using soil surface indicators in Letšeng- la-Letsie wetland in Quthing District, Lesotho
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Nthuseng Kahlolo --- , Lesotho Botle Mapeshoane --- , Lesotho Peter Chatanga --- , Lesotho Lerato Seleteng-Kose --- , Lesotho Makoala V Marake --- , LesothoWetlands are globally valuable ecosystems as they provide many important services to the human society, yet the ecology of some of them is yet to be understood. This study assessed the functionality of Letšeng-la-Letsie wetland in Lesotho, using the Landscape... -
Changes in pastoral mobility in a semi-arid montane region of South Africa: The role of policy and legislation
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M Igshaan Samuels --- , South Africa Nicky Allsopp --- , South Africa M Timm Hoffman --- , South AfricaLegislation and policy are key tools used by governments to change the socio-economic and political landscape of agrarian systems with consequences for mobile pastoralism. This study used the social-ecological systems framework to examine how pastoral mobility in the semi-arid, montane... -
The psychosocial determinants of the intention to test for HIV among young men in KwaZulu-Natal province, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Thabang Manyaapelo --- , South Africa Robert AC Ruiter --- , The Netherlands Sibusiso Sifunda --- , South Africa Anam Nyembezi --- , South Africa Bart van den Borne --- , The Netherlands Priscilla Reddy --- , South AfricaBackground: Voluntary counselling and testing is one of the effective prevention strategies against the HIV/AIDS epidemic. This study investigated the psychosocial determinants of the intention to be tested for HIV among young men in South Africa’s KwaZulu-Natal province using the... -
Mobile applications for sexual encounters accessed by men who have sex with men: Information on sexually transmitted infection
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Janice França Queiroz --- , Brazil Kleyton Santos de Medeiros --- , Brazil Ayane Cristine Alves Sarmento --- , Brazil Ana Luisa Fernandes Vital --- , Brazil Beatriz Stransky --- , Brazil Ana Katherine Gonçalves --- , BrazilWe evaluated existing mobile applications (apps) on both Android and iOS (Apple) platforms that are used by men who have sex with men (MSM) to obtain sexual encounters. The word “gay” was used to search for apps in the Apple... -
Prevalence and associated factors of weapon carrying among university students from 25 countries
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- , Thailand Karl Peltzer --- , South AfricaThe study aimed to assess the prevalence and associated factors of recent weapon carrying among university students from 25 countries. Using a cross-sectional study design, 18 433 university students (median age = 20 years) 25 countries in Africa, the Americas,... -
The socio-ecology of childcare in Apartheid South Africa: Retrospective experiences of a sample of caregivers
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jené Pretorius --- , South Africa Carinne Annfred Lorraine Petersen --- , South Africa Athena Pedro --- , South AfricaWe sought to retrospectively understand current caregivers’ childhood experiences of apartheid in South Africa. A sample of eight caregivers (black = 3, white = 2, mixed race = 3; age range = 29 to 55 years) took part in the... -
The performance implications of strategic responses of SMEs to the covid-19 pandemic: Evidence from an African economy
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Suzzie Owiredua Aidoo --- , Ghana Ahmed Agyapong --- , Ghana Moses Acquaah --- , USA Samuel Yaw Akomea --- , GhanaHow does the use of adaptive resilience (perseverance and retrenchment) as a strategic response influence the performance of SMEs during catastrophic events such as the COVID-19 pandemic? This study examines how adaptive resilience in the form of perseverance and retrenchment... -
Usability evaluation of frugal innovation: A case of mobile training for micro businesses in Tanzania
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: William Clifford Gomera --- , Tanzania Jarkko Suhonen --- , Finland Markku Tukiainen --- , Finland George S. Oreku --- , Finland Matti Tedre --- , Finland Solomon Sunday Oyelere --- , FinlandThis study evaluated a mobile training pilot prototype designed for micro business owners in Tanzania. The paper focused on the extent to which features of the pilot prototype developed under frugal innovation confirmed the defined user requirements of the mobile... -
Stock separation of the shallow-water hake Merluccius capensis in the Benguela ecosystem using otolith shape analysis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ENG Shoopala --- , Namibia MR Wilhelm --- , Namibia SC Paulus --- , NamibiaThe fishing industry is an important economic sector in Namibia and South Africa, with the shallow-water hake Merluccius capensis being an important target species. Recent genetic studies of M. capensis found two stocks in the Benguela Current Large Marine Ecosystem,... -
Evaluating Kenya’s coastal gillnet fishery: trade-offs in recommended mesh-size regulations
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Osuka --- , Kenya JA Kawaka --- , Kenya MA Samoilys --- , KenyaGillnets are a widely used fishing gear in Kenya’s artisanal fisheries, yet their mesh sizes are inadequately monitored or regulated. This study evaluated the impacts of gillnets of seven stretched-mesh sizes, through comparative analysis of species-related metrics and catch per... -
‘Who is this body?’ – A qualitative user study on ‘The Machine to be Another’ as a virtual embodiment system
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Jonathan Harth --- , Germany Maximilian Brücher --- , Germany Nele Kost --- , Germany Ann-Danielle Hartwig --- , Germany Bernhard Schäfermeyer --- , Germany Erwin Holkin --- , Germany Hanna Gottschalk --- , GermanyLike no other medium, virtual reality (VR) offers new possibilities to alter the perception of reality. These possibilities are mainly related to the feeling of presence in a virtual environment. With the VR performance ‘The Machine to be Another’ (TMTBA),... -
The association between EBITDA reconciliation quality and opportunistic disclosure
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Mattheus Theodorus Mey --- , South Africa Christiaan Lamprecht --- , South AfricaPurpose: This paper investigated the potential opportunistic disclosure of ‘earnings before interest, tax, depreciation and amortisation’ (EBITDA) by analysing the association between the quality of EBITDA reconciliations and factors associated with opportunistic disclosure. -
Population ecology of Red-necked Spurfowl Pternistis afer in the coastal towns of the Eastern Cape province, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Johann H van Niekerk --- , South AfricaConserved remnants of indigenous vegetation patches and corridors are regarded as important components of the built environment for the survival of birds. Field research was conducted at Boknes and Cannon Rocks in the Eastern Cape Province, South Africa to study... -
South African raptors in urban landscapes: a review
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Shane C McPherson --- , South Africa Petra Sumasgutner --- , Austria Colleen T Downs --- , South AfricaGlobally, but especially in Africa, increasing human populations and anthropogenic land-use change are generally affecting diversity negatively. Urban environments in southern Africa typically comprise a mosaic landscape of anthropogenic infrastructure with some green spaces. These urban cities have a range... -
Urban areas have lower species richness, but maintain functional diversity: insights from the African Bird Atlas Project
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan Tristram Kenneth Lee --- , South Africa Ulf Ottosson --- , Nigeria Colin Jackson --- , Kenya Sidney Shema --- , Kenya Chevonne Reynolds --- , South AfricaHigh human population growth and rapid urbanisation, particularly in Africa, have led to an increased interest in the impacts of this land-use change on bird communities. The African Bird Atlas Project, where species presence lists are collected in pentads, is... -
A psychobiographical study of Temujin’s (Genghis Khan) personality
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Bao Xiaohong --- , China Dong Jia --- , China Zheng Jianhong --- , ChinaThis psychobiography study of Temujin employed the Personality Adjective Evaluation Scale, the Personality Adjective Classification Survey, and the Delphi method to characterise Temujin’s personality traits and probable influences. One hundred and thirty-two participants rated Temujin’s personality on 248 evaluation words,... -
Adapting a diabetes nutrition education programme for adults with type 2 diabetes from a primary to tertiary healthcare setting
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Jane W Muchiri --- , South Africa Gerda J Gericke --- , South Africa Paul Rheeder --- , South Africa -
The impact of existing diabetes self-management education interventions on knowledge, attitudes and practices in public health care institutions in Harare, Zimbabwe
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Sanele Nkomani --- , South Africa Simbarashe Ruskaniko --- , Zimbabwe Renée Blaauw --- , South Africa -
Land reform and its impact on the arid South African environment: Riemvasmaak as a case study
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: GS Fleury --- , South Africa MT Hoffman --- , South Africa SW Todd --- , South AfricaThe 75 000 ha, hyper-arid area of Riemvasmaak represents one of the first land restitution cases in post-apartheid South Africa. People who were forcibly removed in 1974 were resettled in 1995. We describe the impact that people and domestic livestock... -
Assessing the impact of climate change on crop production in southern Africa: a review
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: AC Franke --- , South AfricaThis paper provides a systematic review of studies assessing the impact of climate change on crop yields in southern Africa. Moreover, it synthesises the current knowledge of the impact of elevated ambient CO2 levels (eCO2) and temperatures on physiological processes,... -
Firm-specific orientations and manufacturing capability under institutional voids
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Deusdedit Augustine Rwehumbiza --- , United Republic of TanzaniaManufacturing capability (MC) is widely considered to depend on a strategic orientation of firms and institutional support. Remarkably, little is known about the influence of firm-specific orientations on manufacturing capability under institutional voids. This study examines the extent to which... -
Using social practice approaches for strategic management research in Africa: an example, design considerations and potential contributions
Item type: Journal Article • Journal: Africa Journal of Management • Authors: William Phanuel Kofi Darbi --- , Ghana Stanley Coffie --- , GhanaAfrican management theories and practices have received scant scholarly attention in organization and management literature. The recognition for vast opportunities for developing, adapting and extending management concepts, theories and practices in situ has become topical. Scholars have responded thus far,... -
Values gaps affecting human resources management relations between expats and locals: The case of a Chinese manufacturer in South Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Yanyin Zi --- , Japan Arthur Linke --- , South AfricaChinese companies have continued to increase foreign direct investment (FDI) and engagement within Africa, perceived as a last global frontier market, particularly in light of China’s Belt and Road initiative. The literature highlights a number of human resources management (HRM)... -
Improvements in forecasting insurance stock excess returns: Comparing the investor sentiment endurance index with the CAPM and Fama-French models
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Ling T. He --- , Haibo Yao --- , K. Michael Casey --- ,This study applies the sentiment endurance (SE) index developed by He (2012) to forecast excess returns of insurance stocks. With the exception of the 12-month rolling forecasts of the Fama-French three-factor model (FF), forecasts of the SE model persistently outperform... -
How do employees really feel about team building? An exploratory netnographic investigation
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Ran Zhang --- , the Netherlands Erwin Losekoot --- , the NetherlandsThis study explored employees’ attitudes towards team-building events. Anonymous qualitative data were obtained using netnography and analysed through an interpretive content analysis approach. The data analysis yielded sixteen codes and five main themes, on the basis of which employees’ attitudes... -
Grit and its relation to well-being among first-year South African university students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- , South AfricaThis mixed methods study explored grit and well-being among South African first-year university students (N = 405, female = 57.10%; mean age = 20.59, SD = 1.65 years). The students self-reported their grit and well-being. A small subsample of the... -
Caregivers of early adolescent children: Influences of their apartheid experiences on their intergenerational learning practices
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jené Pretorius --- , South Africa Carinne Annfred Lorraine Petersen --- , South Africa Athena Pedro --- , South AfricaThis study aimed to explore the experiences of apartheid that South African caregivers share with their early-adolescent children. Utilising a qualitative exploratory inquiry approach, we interviewed eight participants (male = 1; age range: 29–55 years old; black = 3; coloured... -
Social anxiety, maladaptive cognition, mobile phone addiction, and perceived social support: A moderated mediation model
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Hui-Ling Zhou --- , China Huai-Bin Jiang --- , China Bin Zhang --- , China Han-Yu Liang --- , ChinaThis study tested the mediation effect of maladaptive cognition in the association between social anxiety and mobile phone addiction, and the moderating role of perceived social support in that relationship. A sample of 468 Chinese university students (female = 43.6%;... -
Comparison of the particle size distributions of sediment collected from sandy seafloor using a Van Veen grab and cone dredge
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GM van der Heever --- , South Africa LJ Atkinson --- , South Africa CEO von der Meden --- , South AfricaSediment particle size is an important environmental parameter that influences benthic species composition and is frequently used in habitat and ecosystem classification systems. In South Africa, benthic grabs are regularly used to collect seafloor sediment samples for particle size analysis... -
Distribution patterns of intertidal oribatid mites (Acari, Oribatida) from South African shores and their relationship to temperature
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Pfingstl --- , Austria J Baumann --- , Austria J-A Neethling --- , South Africa I Bardel-Kahr --- , Austria EA Hugo-Coetzee --- , South AfricaA faunistic study of the intertidal oribatid mite fauna of South Africa’s coastline revealed the presence of four species from three families, showing specific biogeographic patterns. Their occurrences show a clear east–west divide, with a small gap near East London... -
Leopard tortoise Stigmochelys pardalis (Bell, 1928) mortality caused by electrified fences in central South Africa and its impact on tortoise demography
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Sharon Holt --- National Museum, South Africa Liora Kolska Horwitz --- The Hebrew University, Israel Beryl Wilson --- McGregor Museum, South Africa Daryl Codron --- University of the Free State, South AfricaThe leopard tortoise (Stigmochelys pardalis) is among the most ubiquitously distributed chelonian species in Africa. As with other chelonians, however, the species’ slow growth rate, coupled with low survivorship of juveniles, make it susceptible to declines under regimes of environmental... -
Demographic variables as drivers of innovation in small accommodation businesses: A case of South Africa and Zimbabwe
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Lovemore Tendai Chipunza --- , South Africa Matsidiso Nehemia Naong --- , South AfricaMost of the evidence that has been documented on the impact of demographic factors on innovation has primarily focused on large businesses, and there has been little focus on small businesses. The literature continues to confirm that innovation is a... -
The effect of intellectual property protection on innovation: Empirical analysis of developing countries panel
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Saïd Hammami --- ,This paper aims to test the impact of intellectual property protection reforms on the dynamic of technological progress within sampled developing countries. The dependency of the Intellectual Property Rights (IPR’s) rule enforcement on the stage of economic development is broadly... -
Critical Literary Arts in Action: The Decolonial Project of Ba re e ne re within and beyond Lesotho
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Lineo Segoete --- , Lesotho Zachary Rosen --- , LesothoIn this article we explore the historical construction of literary infrastructure established in Lesotho. Building on an analysis of Sesotho language orthography by Dr Litšepiso Matlosa, we recall the colonial genesis of written Sesotho by Swiss and French missionaries. As... -
First report of glyphosate and paraquat resistance in two Plantago biotypes
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Vhuthu Ndou --- , South Africa Frederick Eksteen --- , Ethel Phiri --- , South Africa Petrus J Pieterse --- , South AfricaResistance to glyphosate in plantago (Plantago lanceolata L.), a serious weed in South Africa, was confirmed in 2003. More recently, a plantago biotype that is putatively resistant to both glyphosate and paraquat was reported. Seeds from a putatively susceptible (S)... -
A comparison of zinc sources and extraction methods on sandy soils suitable for maize cropping
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: CF Wessels --- , South Africa LF van Straaten --- , South Africa CC du Preez --- , South Africa GM Ceronio --- , South AfricaMaize is the most important crop produced for human and animal nourishment in South Africa. The crop is susceptible to zinc (Zn) deficiencies, which result in lower grain yields with poorer nutritional value. Knowledge of the nature and behaviour of... -
Social capital and project management success in a developing country environment: Mediating role of knowledge management
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Kwasi Amoako-Gyampah --- , USA Moses Acquaah --- , USA Ebenezer Adaku --- , Ghana Samuel Famiyeh --- , GhanaDespite significant investments in projects by organizations, governments, and international development agencies in developing countries, many of the projects have failed and continue to fail due to budget overruns, inability to complete projects on time, and poor-quality outcomes. We draw... -
Influence of ego resilience on school adaptability among primary school lower-grade children
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ruiqian Li --- , China Xia Wu --- , China Zeming Jin --- , China Hui Zhou --- , China Yuan Meng --- , ChinaWe explored the association between primary school children’s ego resilience, failure tolerance, and adaptability in a Chinese school setting. The participants were 231 primary school children (female = 45.9%; from two-parent families = 81%, from single parent families = 19%;... -
A fortunate self-actualised man: A psycho-biographical study of Yuan Longping
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jianhong Zheng --- , Chaohong Ji --- , China Wu-Ming He --- ,To develop a psycho-biographical profile on Yuan Longping, a tireless hybrid rice research scientist, we performed a content analysis of personality adjectives. For dependability of the analysis, we utilised the methods of “prototypical scenes” and “key factors of growth”. Our... -
Assessing the construct validity of the Career Agility Scale for measuring adult workers’ digital era adaptive readiness
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Melinde Coetzee --- , South Africa Nadia Ferreira --- , South Africa Ingrid L Potgieter --- , South AfricaThe study assessed the construct validity of the Career Agility Scale (CAS) in a sample of financial, legal, and human resources services employees. The participants were 290 employees (female = 46%, black = 63%; mean age = 38.58 years, SD... -
Emotion regulation mediates the relationship between college students’ perceived social support and social anxiety
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Huifang Yang --- , China Junqing Li --- , China Xiaoqing Qiu --- , China Yuling Zheng --- , China Xin Song --- , ChinaWe investigated the role of emotional regulation in the relationship between perceived social support and social anxiety. Participants were 547 college students (female = 69%; freshmen = 33%; mean age = 21.13 years, SD = 1.12 years). For the measures,... -
Correlation between vitamin D serum levels and severity of diabetic retinopathy in patients with type 2 diabetes mellitus
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Gauhar Nadri --- , India Sandeep Saxena --- , India Apjit Kaur --- , India Kaleem Ahmad --- , India Pragati Garg --- , India Abbas Ali Mahdi --- , India Levent Akduman --- , USA Katarina Gazdikova --- , Slovakia Martin Caprnda --- , Slovakia Pavol Vesely --- , Slovakia Peter Kruzliak --- , Czech Republic Vladimir Krasnik --- , SlovakiaPurpose: To study the correlation of serum vitamin D levels with quantitative (central subfield thickness [CST], cube average thickness [CAT]), cross-sectional (disorganisation of retinal inner layer [DRIL] and ellipsoid zone [EZ]) and topographic parameters (retinal pigment epithelium [RPE]) on spectral... -
Knowledge, attitude and practices of patients receiving maintenance haemodialysis in Bloemfontein, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: HC Spies --- , South Africa VL van den Berg --- , South Africa M Nel --- , South AfricaIntroduction: In sub-Saharan Africa, a paucity of data exists in respect of the knowledge, attitudes and practices (KAP) of patients on maintenance haemodialysis (MHD) regarding the dietary adaptations they should make. -
Walking with herders: following into the multispecies classroom
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: William Ellis --- , South Africa Clement Cupido --- , South Africa Mogamat Igshaan Samuels --- , South AfricaThe recently developed walking ethnography, or go-along method, to study pastoralists in a participatory manner provides data that the usual sit-down interview is unable to realise, not least because it shifts the power dynamic between researcher and researched. The herder’s... -
A decade of surf-zone linefish monitoring in the Dwesa-Cwebe Marine Protected Area, with a preliminary assessment of the effects of rezoning and resource use
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Bullock --- , South Africa A Wood --- , South Africa VA Dames --- , South Africa JA Venter --- , South Africa J Greeff --- , South AfricaAn 11-year assessment of surf-zone linefish (marine fish captured on hook and line) was carried out in the Dwesa-Cwebe Marine Protected Area (MPA) in the Eastern Cape, South Africa, by research fishing to determine species and size composition, movement and... -
Investigating the effects of hypersalinity on the cardiac performance of the invasive gastropod Melanoides tuberculata (Müller, 1774)
Item type: Journal Article • Journal: African Zoology • Authors: TJ de Haas --- , South Africa LJ Connell --- , South Africa R Greenfield --- , South AfricaAnthropogenic activities have propelled the exploitation of natural environments, which along with climate change have resulted in salinity intrusion to freshwater ecosystems worldwide. To determine the extent the hypersalinity stressor has on freshwater ecosystems, physiological cardiac responses in the freshwater... -
A review of the populations of tilapiine species in lakes Victoria and Naivasha, East Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Edwine Yongo --- , Kenya Laurent Cishahayo --- , Peoples Republic of China Eunice Mutethya --- , Kenya Bonface Mnang’at Alkamoi --- , Kenya Kokwon Costa --- , Kenya Nzeyimana Jean Bosco --- , Peoples Republic of ChinaThis paper discusses the catch trends, population attributes and biological characteristics of tilapiine species that are both native and that have been introduced into Lake Victoria and Lake Naivasha. Predation by Lates niloticus, species hybridisation, overfishing, pollution and eutrophication have... -
Urbanization and housing development in South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Simona Totaforti --- , ItalyThe South African urban system is a significant testbed for the analysis of urban forms in emerging economies. On the one hand, the urbanization processes have similar characteristics to those found elsewhere in the world, while on the other they... -
Investigating climate change awareness and adaptation strategies among female farmers in the Lephalale municipal area in South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Michael Obisesan --- , South Africa Munyaradzi Chitakira --- , South AfricaThis study evaluated climate change awareness and adaptation strategies among female farmers in the Lephalale municipal area in the Limpopo province of South Africa. A concurrent mixed method research approach was undertaken. Qualitative data were obtained through five focus group... -
Is happiness based on psychological harmony? Exploring the mediating role of psychological harmony in the relationship between personality characteristics and occupational well-being
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yuzhu Zhang --- , China Leigang Zhang --- , China Yunlong Wu --- , ChinaThis study proposed and tested a theoretical model for specifying the structural relationship between personality characteristics (including core self-evaluation, social comparison, philosophies of human nature, psychological capital), psychological harmony, and occupational well-being in a higher education setting. We analysed data... -
Gould’s Icones avium (1837–1838) and vagrancy in the Pennant-winged Nightjar Caprimulgus vexillarius — could it wander to islands in the Indian Ocean?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Guy M Kirwan --- , United StatesThe Pennant-winged Nightjar Caprimulgus vexillarius was described in 1838 by John Gould from a male in breeding plumage, but its given locality, various islands in the Indian Ocean and Red Sea coasts, was eventually deemed unreliable and replaced in the... -
Seasonal variation and drivers of zooplankton, macroinvertebrate and littoral fish communities from irrigation ponds in a semi-arid region in the Eastern Cape (South Africa)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L Mofu --- , South Africa T Dalu --- , South Africa RJ Wasserman --- , South Africa DJ Woodford --- , South Africa D Khosa --- , South Africa OLF Weyl --- , South AfricaIrrigation ponds are increasingly abundant globally, particularly in water-stressed countries with limited natural surface waters, yet knowledge of their ecology is limited. Here, we assessed zooplankton, macroinvertebrate, and littoral fish communities from irrigation ponds located in the Sundays River Valley... -
Aligning Conservation Agriculture among various disciplines in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Pieter A Swanepoel --- , South AfricaIn South Africa, the term Conservation Agriculture (CA) is often used to describe any soil conservation action rather than a combination of the three management principles that CA encompasses, namely minimum soil disturbance, using a diversity of crops in rotation... -
Vegetation classification for the management of large mammalian herbivores: a case study at Mushingashi Conservancy, Central Province, Zambia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Bruce W Clegg --- , Zimbabwe Timothy G O’Connor --- , South Africa Alan D Manson --- , South AfricaThe vegetation of Mushingashi Conservancy in central Zambia was classified and mapped to provide a template for wildlife management. Putative vegetation types were delineated using Landsat 8 imagery, then sampled with 73 plots for vegetation composition and structure, and topo-edaphic... -
Increased resolution of soils information through morphon segmentation of the Korentepoort mountain catchment
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: GJ Malan --- , South Africa WP De Clercq --- , South Africa AB Rozanov --- , South Africa C Clarke --- , South Africa H Helness --- , Norway S Damman --- , Norway N Elema --- , South Africa J Atkinson --- , South AfricaRecent climate instability necessitates a fresh approach to water cycle services in the Hessequa municipal region. Attention is drawn to impacts on water storage in this region, and an assessment of the current status is necessary. Land-use change and soil... -
Response of tomato cultivars to irrigation management strategies employed by emerging farmers in the Greater Giyani Municipality
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Tebogo J Lebea --- , South Africa Nebo Jovanovic --- , South Africa Mapotso Kena --- , South Africa Kwabena K Ayisi --- , South Africa Wisani G Mushadu --- , South AfricaIntensification of low-tech agricultural production is required in the Greater Giyani Municipality (Limpopo province, South Africa) to respond to changing climatic conditions, water scarcity and increased food demand of the local market. Two years of field experiments were conducted on... -
Laparoscopic inguinal lymph node dissection in carcinoma of the vulva: experience and intermediate results at one institution
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Setheme Daniel Mosehle --- , South Africa Franco Guidozzi --- , South AfricaObjective: The goal of the study was to assess the feasibility of Laparoscopic Minimally Invasive Inguinal Lymph Node Dissection (L-MILND) for carcinoma of the vulva where sentinel lymph node biopsy could not be done. Laparoscopic Minimally Invasive Inguinal Lymph Node... -
A retrospective study comparing the efficiency of recurrent LSIL cytology to high-grade cytology as predictors of high-grade cervical intraepithelial neoplasia or worse (CIN2+)
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: R Suleman --- , South Africa MH Botha --- , South Africa -
The effect of the adoption of International Financial Reporting Standards on foreign portfolio investment in Africa
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Matthew Olubayo Omotoso --- , South Africa Daniël Petrus Schutte --- , South Africa Merwe Oberholzer --- , South AfricaThe adoption and implementation of International Financial Reporting Standards (IFRS) are anticipated to enhance the quality and credibility of financial statement in terms of reliability, transparency and comparability. Consequently, it presupposes improving the functioning of the capital market and influence... -
To err is human; to forgive, divine: A scoping review of workplace forgiveness experiences
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Salomé Elizabeth Scholtz --- , South AfricaForgiveness in the workplace can play a crucial role in employee health and organisational outcomes. This scoping review explored the emerging evidence on employee experiences of workplace forgiveness. The search included JSTOR (2020) and Scopus databases, spanning the period 2010-2020... -
Organisational trust and commitment among South African public service employees: Influence of socio-demographics
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ingrid Potgieter --- , South Africa Kelebogile Mathonsi --- , South AfricaThis study examined the influence of socio-demographics on the relationship between employee organisational trust and organisational commitment. The study’s participants were 255 South African public service employees (female = 58%; black = 82%; permanently employed = 84%), between the ages... -
Agricultural advisory and extension service approaches and inclusion in reaching out to Kenyan rural farmers
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ann N. Kingiri --- , KenyaEfficient agricultural advisory and extension service (AES) is poised to lead to improved agricultural productivity as farmers utilize information and knowledge to optimize their use of limited resources. However, the role of AES has progressively evolved due to the changing... -
The value of volunteers in tourism and events: A leadership perspective
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Henrik Sølvbjerg Pahus --- , Denmark Simon Lind Fischer --- , Denmark Bianca Bradescu --- , DenmarkThis article is part of a three-year research project on volunteerism and the value for organisations employing volunteers, volunteers themselves and finally the tourists who meet the volunteers in various settings. Employing a mixed methods approach, we conducted a mutual... -
The virtual field trip: conditions of access/ibility and configurations of care in teaching ethnography (during Covid-19)
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Yusra Price --- , South Africa Elthéa S. de Ruiters --- , South AfricaOnline learning as an emergency response to the Covid-19 pandemic provides a set of challenges that all educators had to navigate in their approach to teaching. This article details our experiences, as young educators, with developing a remote version of... -
Fieldworker reflections on using telephone voice calls to conduct fieldwork amidst the Covid-19 pandemic
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Motsaathebe Serekoane --- , South Africa Lochner Marais --- , South Africa Michael Pienaar --- , South Africa Carla Sharp --- , South Africa Jan Cloete --- , South Africa Liezel Blomerus --- , South AfricaThe declaration of Covid-19 as a global pandemic on 11 March, 2020, and the disaster management regulations implemented in reply to it had enormous ramifications on ethnographic fieldwork. This situation presented an opportunity to reconsider the methodology used in a... -
Embodied resilience: A phenomenological perspective
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Eric Elbers --- , the Netherlands Vivianne Baur --- , the Netherlands Babet te Winkel --- , the Netherlands Joachim Duyndam --- , the NetherlandsBackground: From a phenomenological perspective, our body is the “from-which” we face the world. Vice versa, our body is affected by occurrences in our surroundings. Embodied resilience is understood as a quality of the dynamic relationships between our affected body... -
New distributional data and genetic variation of Panaspis breviceps (Squamata: Scincidae) indicate a biogeographic connection across the Congo Basin
Item type: Journal Article • Journal: African Zoology • Authors: Albert L Lokasola --- , Democratic Republic of the Congo Cédric Botshuna Lotana --- , Democratic Republic of the Congo Guy-Crispin Gembu Tungaluna --- , Democratic Republic of the Congo Benjamin Dudu Akaibe --- , Democratic Republic of the Congo Miloslav Jirků --- , Czech Republic Václav Gvoždík --- , Czech RepublicIn the central Congolian lowland forests we discovered for the first time Panaspis breviceps, a rarely found scincid lizard from the Central African riparian forests. Given that the Central African forests exhibit heterogeneity in the distribution of environmental characteristics and... -
Mountain refugia limit anthropogenic suppression in a re-established felid population: the case of the Magaliesberg leopard population in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: R John Power --- , South Africa Matt S Rogan --- , South Africa Vincent N Naude --- , South AfricaAlthough highly adaptable, leopards incur substantial mortality in human-modified landscapes and generally subsist at lower densities than in protected areas. Leopard populations are difficult to enumerate across any landscapes, though there have been strides to improve upon this, particularly in... -
Timing, duration and symmetry of moult in Cape Gannets
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Oluwadunsin E Adekola --- , South Africa Robert JM Crawford --- , South Africa Bruce M Dyer --- , South Africa Azwianewi B Makhado --- , South Africa Leshia Upfold --- , South Africa Peter G Ryan --- , South AfricaLittle has been reported on moult in sulids, including gannets. The Cape Gannet Morus capensis is an endangered seabird endemic to southern Africa. We describe the timing, duration, symmetry and sequence of flight feather moult in Cape Gannets from two... -
The effects of habitat loss and fragmentation on updated estimates of the population of the Agulhas Long-billed Lark Certhilauda brevirostris, a South African endemic
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Steven W Evans --- , South AfricaThe Agulhas Long-billed Lark Certhilauda brevirostris is a South African endemic and is restricted to the fynbos habitat of the Agulhas Plain in the southwestern corner of South Africa. The 1990, 2014, and 2018 land use land cover (LULC) databases... -
Effects of tropical rainforest fragmentation on bird species: a case study from the Bemanevika Protected Area, northwestern Madagascar
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Armand Benjara --- , Madagascar Lily-Arison Rene de Roland --- , Madagascar Marius Rakotondratsima --- , Madagascar Russell Thorstrom --- , United StatesThe effects of forest fragmentation on forest bird species in the Bemanevika Protected Area (PA), northwestern Madagascar, were investigated during two breeding seasons from October 2016 to January 2018. The forest of Bemanevika is composed of large patches of fragmented... -
Tracing the distribution of natural enemies of non-native invasive eucalypt insect pests in sub-Saharan Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Mesfin Wondafrash --- , South Africa Bernard Slippers --- , South Africa Birhane A Asfaw --- , Ethiopia Idea A Makowe --- , South Africa Herbert Jenya --- , Malawi Samantha Bush --- , South Africa Isaac Kayumba --- , Rwanda Alphonsine Nambazimana --- , Rwanda Simon van der Lingen --- , Zimbabwe Brett P Hurley --- , South AfricaEucalypt forestry in sub-Saharan Africa is challenged by non-native eucalypt-feeding insects. In recent studies, six invasive eucalypt insect pests, namely Blastopsylla occidentalis, Glycaspis brimblecombei, Gonipterus sp.n.2, Leptocybe invasa, Thaumastocoris peregrinus and Ophelimus maskelli were confirmed present in sub-Saharan Africa. We... -
Role of clinical laboratories in reporting results of transgender individuals on hormonal therapy
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: B Phiri-Ramongane --- , South Africa AA Khine --- , South AfricaTransgender individuals experience discordance between their gender identity and sex assigned at birth. To relieve the disconnection between their identity and their biological state, some may take hormonal therapy, which leads to notable changes in several laboratory results. As reference... -
Machine learning and regression models to predict multiple tree stem volumes for teak
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ivaldo da Silva Tavares Júnior --- , Brazil Jianne Rafaela Mazzini de Souza --- , Brazil Lucas Sérgio de Sousa Lopes --- , Brazil Leonardo Pereira Fardin --- , Brazil Gianmarco Goycochea Casas --- , Brazil Ricardo Rodrigues de Oliveira Neto --- , Brazil Rodrigo Vieira Leite --- , Brazil Helio Garcia Leite --- , BrazilThe quantification of a stand’s wood stock is one of the most important procedures for Tectona spp. (teak) management. An optimal method for estimating tree volume must accommodate the variation of the data collected in the inventory. This study evaluated... -
Charcoal heaps volume estimation based on unmanned aerial vehicles
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Luiza Marina Esteves de Carvalho --- , Brazil Alessandra Melo --- , Brazil Glauco José de Matos Umbelino --- , Brazil Jan-Peter Mund --- , Germany Jhonathan Gomes dos Santos --- , Brazil Jacqueline Rosette --- , United Kingdom Daniel Silveira --- , São Paulo Eric Bastos Gorgens --- , BrazilThe charcoal stock in a forestry business is controlled based on the theoretical capacity of the masonry ovens (input) and shipped trucks (output). During the year, the company must monitor the stock for accountability reports and internal governance. This paper... -
A laissez-faire management approach in a grassland landscape results in a fine-scale, spatio-temporally heterogeneous fire pattern
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Marc E Stalmans --- , South Africa Ed TF Witkowski --- , South Africa Kevin Balkwill --- , South AfricaWhat are the spatio-temporal characteristics of a fire pattern that is allowed to develop over time across a species- rich, predominantly grassy landscape? More than 1 300 fires were documented over 13 years in the 48 000 ha Songimvelo Game... -
Woody cover change in relation to fire history and land-use in the savanna-woodlands of north-east Namibia (1996–2019)
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Glynis Humphrey --- , South Africa Conor Eastment --- , South Africa Lindsey Gillson --- , South Africa M Timm Hoffman --- , South AfricaVegetation cover estimates for trees, shrub-grass mosaics, and grassland and bare ground, were quantified in the savanna-woodland of Bwabwata National Park, north-east Namibia. Changes in woody cover were analysed using repeat photographs in combination with aerial photographs and recent satellite... -
Too much, too late: fires and reactive wildfire management in northern Botswana’s forests and woodland savannas
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: L Cassidy --- , Botswana JS Perkins --- , Botswana J Bradley --- , BotswanaAcross much of southern Africa’s savanna wildernesses, wildfires burn unchecked. This is particularly true in the woodland savannas of northern Botswana, where wildfires originate outside of management activities, and are left to burn uncontrolled, because of limited resources and remoteness... -
Determining percentage body fat of male South African jockey apprentices irrespective of hydration status
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Emma Illidge --- , South Africa Chara Biggs --- , South Africa Kathleen Krog --- , South Africa Tarryn Mason --- , South Africa Mandy Read --- , South AfricaObjective: The aim was to determine the most appropriate field techniques to measure %BF when both euhydrated and dehydrated. -
Convergence and vicariance: speciation of chameleons in the Cape Fold Mountains, South Africa, and the description of three new species of Bradypodion Fitzinger, 1843
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Krystal A Tolley --- South African National Biodiversity Institute, South Africa Colin R Tilbury --- University of Stellenbosch, South Africa Marius Burger --- North-West University, South AfricaThe mechanisms that underpin ecological speciation, morphological convergence and the evolution of ecological morphotypes (ecomorphs) in squamates have allowed for a better appreciation of the speciation process in chameleons. In particular, attention has been drawn to several populations of chameleons... -
Current-day distribution of the rinkhals (Hemachatus haemachatus) in central South Africa and Lesotho: An evaluation based mainly on photographic and videographic records from social media
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Michael F Bates --- National Museum, South Africa Cora S Stobie --- National Museum, South AfricaThe rinkhals (Hemachatus haemachatus) is a well-known venomous elapid found in greater South Africa and the eastern highlands of Zimbabwe. To evaluate its current-day (mostly 2012–2021) distribution in central South Africa and Lesotho, we examined various media sources, including Facebook,... -
Talent management practices and work-related outcomes for South African academic staff
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Musawenkosi Donia Saurombe --- , South Africa Emmerentia Nicolene Barkhuizen --- , South AfricaThis study explored the perception of relationships between talent management practices and work meaningfulness, happiness, and turnover intention among South African academic staff. The participants (n = 160) were from a large South African higher education institution (HEI). For a... -
Perspectives on academic mentorship, research collaborations, career advice and work–life balance: a masterclass conversation with Professor Salim Abdool Karim
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Faheema Kimmie-Dhansay --- , South Africa Jawaya Shea --- , Seyi Amosun --- , South Africa Xan Swart --- , South Africa Lehana Thabane --- , CanadaMentorship and collaboration are fundamental to ensure success in research, particularly health research. In this article, we summarise a conversation between the Master’s in Biostatistics students at Stellenbosch University and Professor Salim Abdool Karim, the head of the Centre for... -
Movement patterns and catch trends of the diamond ray Gymnura natalensis (Dasyatidae) in South African waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Daly --- , South Africa GL Jordaan --- , South Africa D Parker --- , South Africa G Cliff --- , South Africa N Nkabi --- , South Africa R Kyle --- , South Africa ST Fennessy --- , South Africa BQ Mann --- , South AfricaThe diamond ray Gymnura natalensis is endemic to southern Africa where its preference for shallow coastal habitats makes it vulnerable to recreational shore-based angling. Although it makes up approximately 1% of the shore-based tag numbers, little is known about its... -
An assessment of South African technological capability using patent data from WIPO Patentscope database
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Swapan Kumar Patra --- , South Africa Mammo Muchie --- , South AfricaThe Post-Apartheid South African Government has produced three white papers (1996–2008), (2008–2018) and (2018–2028) on science technology and innovation for national development. In all these policy documents, science and technology-based industries are considered as priority areas in socioeconomic development. Using... -
Micro-perspective lens on entrepreneurs in the early stage of business: Expectations vis-à-vis realities
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: D.S. Nheta --- , South Africa R. Shambare --- , South Africa C. Sigauke --- , South AfricaIn the early stage of business, which is where most new ventures fail, many entrepreneurs experience discrepancies between their entrepreneurial expectations and business realities. These discrepancies referred to by this paper as an entrepreneurial gap (EG) are, therefore, among other... -
Smallholder farmers’ adaptation strategies to mitigate the effect of drought on maize production in OR Tambo District municipality
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Brian Muroyiwa --- , Lesotho Nasiphi Masinda --- , South Africa Abyssinia Mushunje --- , South AfricaThere is evidence that climate variability has affected agriculture and the expectation is that the situation will get worse over time. This study examined smallholder farmers’ adaptation strategies to mitigate the effects of drought on maize production in OR Tambo... -
The effect of rainbow trout (Oncorhynchus mykiss) invasions on native fish communities in the subtropical Blyde River, Mpumalanga province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Lerato T Maimela --- , South Africa Christian T Chimimba --- , South Africa Tsungai A Zengeya --- , South AfricaThis study investigated the effects of rainbow trout (Oncorhynchus mykiss) invasion on native fish communities in the upper Blyde River catchment. A fish survey was undertaken between September 2017 and October 2018 from 11 sites in the Blyde and Treur... -
The taxation of gap cover policies for individual taxpayers in South Africa: a critical analysis
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Petro Gerber --- , South Africa Cecileen Greeff --- , South AfricaGap cover policies cover the shortfall between medical scheme benefits and the rates the service providers charge and are therefore used by individuals in South Africa to supplement payments of medical expenditure not covered by private medical schemes. Little information... -
A psychobiography of Oliver Reginald Tambo from an African psychology perspective
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sunitha Swanepoel --- , South Africa Paul J. P. Fouché --- , South Africa Pravani Naidoo --- , South AfricaThe objective of this study was to psychologically reconstruct the life of Oliver Reginald Tambo (1917-1993), using integrated African-centred psychological approaches. The researchers applied a constructivist, single-case psychobiographical approach and Alexander’s (1988) principal identifiers of salience to analyse primary and... -
Bed and Breakfast (B&B) social servicescape and customer satisfaction: Positive emotion mediation and sex moderation
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Juan Liu --- , China Xi Li --- , China Hong Chen --- , China Xinwei Su --- , China Runzhe Yu --- , ChinaWe investigated the influence of bed and breakfast (B&B) social servicescape on customer satisfaction, as well as the mediating effect of customer positive emotion and the moderating role of sex. Participants were a convenience sample of 305 B&B customers from... -
Socio-demographic characteristics as predictors of psychosocial resources of call centre agents
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nisha Harry --- , South AfricaThis study investigated the socio-demographic predictors of psychosocial resources in call centre agents. A non-probability sample of 409 call centre agents from Nigeria (n = 145, female = 63%, male = 37%) and South Africa (n = 264, female =... -
Identification of the landscape and bioclimatic characteristics that contribute to maintaining the allopatric distribution ranges of the Northern Black Korhaan Afrotis afraoides and the Southern Black Korhaan Afrotis afra
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Steven W Evans --- , South AfricaThe Northern Black Korhaan Afrotis afraoides and the Southern Black Korhaan Afrotis afra were previously considered conspecific, but were subsequently separated based on habitat, plumage, displays and vocalisations of the males and genetic differences. The Northern Black Korhaan is endemic... -
InfoInternet for education in the Global South: A study of applications enabled by free information-only internet access in technologically disadvantaged areas
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Johanna Johansen --- , Norway Josef Noll --- , Norway Christian Johansen --- , NorwayThis paper summarizes our work on studying educational applications enabled by the introduction of a new information layer called InfoInternet. This is an initiative to facilitate affordable access to internet-based information in communities with network scarcity or economic problems from... -
Analysis of offshore wind energy potential for power generation in three selected locations in Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mamman Rabiu Onoruoiza --- , Nigeria Oyewole Adedipe --- , Nigeria Sunday Albert Lawal --- , Nigeria Oluwafemi Ayodeji Olugboji --- , Nigeria Victor Chiagozie Nwachukwu --- , NigeriaThe rise in the global carbon footprint arising from fossil fuel sources has necessitated the need to explore sustainable and eco-friendly sources of energy. Wind as a source of renewable energy has been underutilized in Nigeria and this study is... -
Economic Returns of public research and development funding in South Africa: Evidence from the Agricultural Research Council’s table grapes cultivar development programme
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sukoluhle Mazwane --- , South Africa Moraka Nakedi Makhura --- , South Africa Kenneth Nhundu --- , South Africa Petronella Chaminuka --- , South AfricaThe study sought to estimate the genetic gains and associated monetary value contributed by the TGCD programme of the Agricultural Research Council (ARC). The Just-Pope production function and cost benefit analysis (benefit cost ratio – BCR, and modified internal rate... -
‘Finishing that plate of food …’ The role of the nurse caring for the patient with dysphagia
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Jaishika Seedat --- , South Africa Nikki Strime --- , South Africa -
The Delphi technique: a tutorial
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Victoria Naisola-Ruiter --- , The NetherlandsThe Delphi technique is a recognised research technique designed as a futures-oriented methodology that gathers data by engaging a panel of experts to make judgements on a specific real-world issue. The technique enables the researcher to interact with key stakeholders... -
Support for local wines in The Netherlands: opportunities for the hospitality industry
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Joost Ijsselmuiden --- , The NetherlandsThis article reports on a research project to measure the current intrinsic competitive value of Dutch wine in comparison to wines from renowned wine countries based on a taste and olfactory evaluation, and to explore the sustainable benefits that local... -
How does (C)CAPM digest anomalies?
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Qi Shi --- , ChinaIn a pioneering effort, we re-evaluate the performance of (C)CAPM (joint CAPM and consumption CAPM) in digesting a large number of anomalies. Our key contribution illustrates that the performance of (C)CAPM appears to be quite sensitive to the choice of... -
A modified Shiller's cyclically adjusted price-to-earnings (CAPE) ratio for stock market index valuation in a zero-interest rate environment
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Roberto Catanho --- , South Africa Adrian Saville --- , South AfricaThe cyclically adjusted price-earnings ratio (CAPE) is a tool that has become widely used to predict market returns. However, recently, deterioration in its forecast strength has surfaced. At the same time, global long-term interest rates have declined and are expected... -
Aluminium and manganese leaching and retention in two contrasting soils treated with aluminium-based sludge water in a column experiment
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S Dube --- , South Africa P Muchaonyerwa --- , South Africa F Mapanda --- , Zimbabwe JC Hughes --- , South AfricaLiquid waste (sludge water (SW)) from treatment of drinking water contains impurities which pose disposal challenges. Irrigation with SW could be a solution for the Morton Jaffray Water Works. This study was conducted to determine the effects of SW dilution... -
Contribution of temperate germplasm to the performance of maize hybrids under stress and non-stress environments in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sphiwokuhle Shandu --- , South Africa Edmore Gasura --- , Zimbabwe Kingstone Mashingaidze --- , South Africa John Derera --- , South AfricaIncreases in genetic gains are crucial to maize breeding programmes. The objectives of this study were to identify higher-yielding and stable maize hybrids across stress and non-stress environments, to identify representative test environments for testing and selection of superior maize... -
Movement behaviour of catface rockcod Mycteroperca (Epinephelus) andersoni (Epinephelidae) off the eastern seaboard of southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BQ Mann --- , South Africa R Daly --- , South Africa GL Jordaan --- , South Africa WN Dalton --- , South Africa ST Fennessy --- , South AfricaMovement behaviour of the endemic epinephelid Mycteroperca andersoni (formerly allocated to genus Epinephelus) along the east coast of southern Africa was investigated using both conventional dart tagging and passive acoustic telemetry. Results from both methods showed that this species is... -
Supporting marine spatial planning with an ecosystem model of Algoa Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Ortega-Cisneros --- , South Africa E Weigum --- , South Africa R Chalmers --- , South Africa S Grusd --- , South Africa AT Lombard --- , South Africa L Shannon --- , South AfricaThe Ecopath with Ecosim (EwE) modelling framework was used to develop a model of Algoa Bay and test the ecosystem impacts of the implementation of the Addo Elephant National Park Marine Protected Area (MPA). The Ecopath model included 37 functional... -
Economic policy uncertainty and industry portfolio returns in the United States
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Asil Azimli --- , TurkeyThis paper examines whether returns on 49 different industry portfolios in the United States (US) expose significantly to the US economic policy uncertainty (EPU) even after controlling for the market and firm-specific risk factors. We find that the US EPU... -
Use of remotely sensed derived metrics to assess wetland vegetation responses to climate variability-induced drought at the Soetendalsvlei wetland system in the Heuningnes Catchment, Western Cape province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NC Ndlala --- , South Africa T Dube --- , South AfricaWetland vegetation plays an important role in the environmental functioning of wetlands through the provision of ecosystem services, such as food and critical habitat for organisms that live in or near water resources. The ecosystem services provided by wetland vegetation... -
Lamproglena monodi Capart, 1944 infecting Oreochromis niloticus (Linnaeus, 1758): additional information on infection, morphology and genetic data
Item type: Journal Article • Journal: African Zoology • Authors: Nehemiah Mogoi Rindoria --- , South Africa Quinton Marco Dos Santos --- , South Africa Shimaa E Ali --- , Egypt Mohammed Hasan Ibraheem --- , Egypt Annemariè Avenant-Oldewage --- , South AfricaLamproglena monodi Capart, 1944 adult females were first described from the Democratic Republic of the Congo and have been redescribed seven times from different cichlid species in Egypt, Burkina Faso and Brazil, all showing morphological variation. The adult male was... -
Diet of a generalist mammalian mesocarnivore in an urban matrix
Item type: Journal Article • Journal: African Zoology • Authors: Jarryd P Streicher --- , South Africa Melanie B Streicher --- , South Africa Tharmalingam Ramesh --- , South Africa Colleen T Downs --- , South AfricaAnthropogenic habitat conversion through urban sprawl is driving mesocarnivores to modify their behaviour and ecology. Thorough knowledge of their feeding ecology is fundamental in understanding the pressures imposed on mesocarnivores by urbanisation. The diet of the water mongoose Atilax paludinosus... -
Primate diversity and species’ distributions in Maze National Park, southern Ethiopia
Item type: Journal Article • Journal: African Zoology • Authors: Muluneh Dansa --- , Ethiopia Wondimagegnehu Tekalign --- , EthiopiaInformation on animal diversity and distribution is essential for designing management plans for conservation. This study aimed to investigate primate diversity and species’ distributions in the Maze National Park, southern Ethiopia. The study was conducted during the dry season (January–March)... -
Lessons learnt from UNAIDS virtual technical support to countries applying for funding from the Global Fund COVID-19 Response Mechanism
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Arlette Campbell White --- , United Kingdom Marc Péchevis --- , United Kingdom Adriana Jimenez Cuen --- , SwitzerlandIn 2020 the Global Fund for AIDS, Tuberculosis and Malaria initiated a new funding modality, the COVID-19 Response Mechanism, to mitigate the pandemic’s effects on HIV, TB and malaria programmes and health systems in implementer countries. In 2021 UNAIDS introduced... -
Factors that influence Africa’s refusal and discontinuation of mobile applications use
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Chinedu Wilfred Okonkwo --- , South Africa Magda Huisman --- , South Africa Estelle Taylor --- , South AfricaThe development, adoption, and use of mobile applications (mobile apps) in Africa are growing rapidly. Some of these mobile apps have gained widespread acceptance, while others have not due to discontinued use and absolute rejection. This study aims to investigate... -
The effects of cluster collaboration and the utilization of big data on business performance: A research based on the expansion of open innovation and social capital
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Joon-ho Kim --- , Republic of Korea Yae-ri Kim --- , Republic of Korea Seung-hye Jung --- , Republic of Korea Hyun-ju Choi --- , Republic of Korea June-hyuk Kwon --- , Republic of KoreaThis study examines the influence of firm cluster collaboration and the utilization of big data on the expansion of open innovation. We also investigate the effect of open innovation on business performance and test the moderating effect of social capital... -
Effect of changing business R&D expenditure mix on productivity of the South African national system of innovation
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Juniours Marire --- , South AfricaThe paper examines the effect of the sharp reallocation of business R&D expenditure from experimental research to applied research, since the global financial crisis, on the productivity of the South African national system of innovation (NSI). Business R&D expenditure declined... -
The impact of open innovation challenges on automotive component manufacturers’ competitiveness: An insight from the South African automotive industry
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Arthur Mzwandile Gonyora [cor1] Stephen Migiro --- , South Africa Pfano Mashau --- , South Africa Bongani Ngwenya --- , South AfricaOpen innovation is a function of managing innovation challenges within an organization to achieve sustainable competitive advantage. To achieve this, organizations have to configure and regulate their strategic resources, harness their core competencies and absorptive capacity, and manage uncertainties inherent... -
Is application of commercial potassium humates beneficial to soil and wheat?
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: GM Ceronio --- , South Africa JT van Tonder --- , South Africa CC du Preez --- , South AfricaCommercial humates manufactured from oxidised lignites are often recommended to improve soil condition and crop growth. The benefits ascribed to these products are questioned, since they differ from humates that exist naturally in soils. Growth chamber, glasshouse and field experiments... -
The short-term effects of surface-applied dolomitic lime and gypsum on soil chemical properties and yields of sugarcane ratoon crops in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sandile Siphesihle Mthimkhulu --- , South Africa Dimpho Elvis Elephant --- , South Africa Neil Miles --- , South Africa Louis William Titshall --- , South AfricaThis study investigated the effects of surface-application of lime and gypsum on soil properties and yields of ratoon sugarcane crops. Treatments involved once-off surface application of dolomitic lime (L), gypsum (G) and dolomitic lime plus gypsum (LG) in factorial combination,... -
Personhood and Moral Recognition in African Moral Thought
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Motsamai Molefe --- , South AfricaThis article philosophically explicates the relationship between personhood and moral recognition in African ethics. Specifically, it reveals the two distinct forms of moral recognition associated with personhood. It conceptualises moral recognition in terms of recognition and appraisal respect. To clarify... -
An ethogram for the nesting and breeding behaviour of the Hooded Vulture Necrosyrtes monachus
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Fiona K Fern --- , South Africa Lindy J Thompson --- , South Africa Colleen T Downs --- , South AfricaMost vulture species worldwide are in decline and of conservation concern. Despite the growing attention to vultures, relatively few studies have focused on their breeding behaviour. Understanding all aspects of a species’ behaviour and its behavioural needs could help to... -
The names and naming of gannets comprising the genus Morus (family Sulidae)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adrian Koopman --- , South AfricaThe gannet species found in the northern hemisphere can be fully identified as the Northern Gannet Morus bassanus in the family Sulidae. This full identity reveals four historical themes which intertwine to produce a number of historical and current names... -
Tactical asset allocation using the Kalman filter
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Reder van Rooyen --- , South Africa Gary van Vuuren --- , South AfricaTactical asset allocation (TAA) is a dynamic investment strategy which seeks actively to adjust fund allocation to a variety of asset classes by systematically exploiting inefficiencies and temporary imbalances in equilibrium values. This approach contrasts with strategic asset allocation (SAA)... -
Assessment of the realisation of the right to adequate food in the Blue Crane Route (Eastern Cape, South Africa)
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: ML Marais --- , South Africa E Lessing --- , South Africa T Frank --- , South Africa -
Maladaptive cognition and problematic Internet use among Nigerian adolescent students: Role of social anxiety
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Juliet Ifeoma Nwufo --- , Nigeria Obinna Osita Ike --- , Nigeria Obianyo E. Chidozie --- , Nigeria Ebele Evelyn Nnadozie --- , Nigeria Chiagozie Lynda Nwufo --- , NigeriaThis study examined the role of social anxiety in the association between maladaptive cognition and problematic internet use among Nigerian adolescent students. Participants were 509 adolescents from schools in South-East Nigeria (n = 509; male = 46.56%, female = 53.44%;... -
Forage legumes from the Mediterranean Fynbos biome of South Africa with potential for domestication: slope aspect affects tissue fibre and mineral composition
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Samson BM Chimphango --- , South Africa Luke H Gallant --- , South Africa M Igshaan Samuels --- , South Africa Odette E Curtis-Scott --- , South Africa A Muthama Muasya --- , South Africa Clement Cupido --- , South Africa James S Boatwright --- , South Africa John Howieson --- , AustraliaFabaceae plants contribute greatly to a high quality of pasture in rangelands, because of high levels of protein in their tissues. Despite this established importance, only a few southern African legumes have been evaluated for nutritional value and domestication. The... -
Assessment of long-term protection on the aboveground biomass and organic carbon content using two non-destructive techniques: case of the Sidi Toui National Park in southern Tunisia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Roukaya Chibani --- , Tunisia Abderrazak Tlili --- , Tunisia Farah Ben Salem --- , Tunisia Mounir Louhaichi --- , Tunisia Azaiez Ouled Belgacem --- , Saudi Arabia Mohamed Neffati --- , TunisiaLong-term protection of arid ecosystems changes the vegetation and soil structures. The quantification of aboveground biomass and carbon content are among the principal indicators to evaluate these changes. Most methods used to quantify these parameters are costly, time consuming and... -
Long-term reference evapotranspiration trend and causative factors analysis in the sugarbelt area of the midlands of KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Zoleka Ncoyini-Manciya --- , South Africa Michael John Savage --- , South Africa Sheldon Strydom --- , South Africa Alistair David Clulow --- , South AfricaGlobal warming is widely recognised, and its effects are becoming apparent throughout the world. Evaporation and evapotranspiration, the key components of the hydrological cycle, are generally expected to increase due to the rise in air and surface temperatures. However, previous... -
Assessment of rice threshing technology characteristics for enhanced rice sector development in Senegal
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Philomena Chioma-Akalugo Ogwuike --- Federal University of Agriculture Abeokuta, Nigeria Aminou Arouna --- Africa Rice Center (AfricaRice), Cote d’Ivoire Clinton Obinna Ogwuike --- Centre for the Study of the Economies of Africa (CSEA), NigeriaUnderstanding the technology characteristics desirable to farmers to increase the adoption of improved technologies remains a high-priority research issue in sub-Saharan Africa (SSA). The study aimed to quantify farmers’ demand and assessment of the characteristics of rice threshing technologies to... -
Design and development of Machinga mobile trading application: A participatory and design science research
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Joel Rumanyika --- College of Business Education (CBE), Tanzania Mikko Apiola --- University of Turku, Finland Nasibu Rajabu Mramba --- College of Business Education (CBE), Tanzania Solomon Sunday Oyelere --- Luleå University of Technology, Sweden Matti Tedre --- University of Eastern Finland, FinlandIn Tanzania, street traders face the challenge of limited markets caused by employing weak marketing and promotion strategies. This study developed a mobile application to solve the problem addressed using participatory design. Qualitative data were collected using focus group discussions... -
Technology transfer and absorptive capacities in South Africa's medical device industry
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Tebogo Simon Ramaoka --- University of Johannesburg, South Africa Erika Kraemer-Mbula --- University of Johannesburg, South AfricaThis paper explores South African manufacturing of medical devices, focusing on firms’ acquisition of imported and domestic technologies through technology transfer and their related absorptive capacity. Using an exploratory sequential mixed-methods approach, this paper demonstrates that technology transfer does occur... -
Predictors of mortality among people living with HIV in the test and treat era within rural Uganda: a retrospective cohort study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Anacret Byamukama --- , Uganda Pauline M Golding --- , United KingdomBackground: Uganda adopted the test and treat strategy in 2016 where all people living with HIV are initiated on antiretroviral drugs irrespective of CD4 count and WHO clinical stage, as one of the major strategies to end the HIV epidemic... -
Nitrogen mineralisation and N2O emissions in pure and mixed-species plantations of Eucalyptus urograndis and Acacia mangium
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Felipe Martini Santos --- , Brazil Fabiano de Carvalho Balieiro --- , Brazil Danilo Henrique dos Santos Ataíde --- , Brazil Pedro Vaz da Rocha --- , Brazil Bruno JR Alves --- , Brazil Guilherme M Chaer --- , BrazilWe hypothesised that N inputs to the soil from residues of adult trees of Acacia mangium Willd. increase soil nitrate availability and consequently induce higher nitrous oxide (N2O) fluxes, irrespective of being in pure or mixed stands with Eucalyptus. A... -
On the identity of west Saharan geckos of the Tarentola ephippiata complex (Squamata: Phyllodactylidae), with comments on an extreme case of syntopy with their close relative T. annularis
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Thore Koppetsch --- Zoologisches Forschungsmuseum Alexander Koenig, Germany Wolfgang Böhme --- Zoologisches Forschungsmuseum Alexander Koenig, GermanyTarentola geckos have a widespread geographic distribution and occur both in the Palearctic and Afrotropical realms, as well as the Neotropical region. Particularly, across North Africa phenotypically similar and cryptic species can be found, like the west Saharan members of... -
Digging adaptations evolved independently in two lineages of Psammophiid snake: evidence from cranial morphology
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Nick Sekits --- Whitman College, United States Walter Tunnell-Wilson --- Whitman College, United States Kate Jackson --- Whitman College, United StatesThe Beaked Snakes (Rhamphiophis) are semi-fossorial snakes with reinforced snouts adapted for digging. The Skaapstekers (Psammophylax) are generalist terrestrial snakes. Both belong to the family, Psammophiidae. The Striped Beaked Snake (Kladirostratus acutus) was originally assigned to the genus Rhamphiophis, because... -
Afrikaner networks for volksdiens: Stellenbosch volkekundiges, 1926–1997
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: C.S. (Kees) van der Waal --- Stellenbosch University, South AfricaSeveral critical exposés of volkekunde at Stellenbosch University have focused on dominant figures up to the 1960s but have not sufficiently considered how they engaged with Afrikaner nationalism. This article introduces questions around solidarity, discontinuity and dissent amongst volkekundiges up... -
Policing the (post)colonial body: The Covid-19 lockdown in South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Amber Reed --- , United States of America Ziyanda Xaso --- , South AfricaIn March 2020, South Africa enacted one of the world’s most severe lockdowns to combat the SARS-CoV-2 pandemic. Whilst this action received international praise, its implementation by the armed security forces in many ways mirrored colonial and apartheid-era controls on... -
Space, Time and the Ethics of Graphic Wit(h)nessing: Rupert Bazambanza’s Smile through the Tears
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Nick Mdika Tembo --- , South AfricaThis article proposes a reading, through the lens of Bracha Ettinger’s theoretical notion of ‘wit(h)nessing,’ of Rupert Bazambanza’s Smile through the Tears as a graphic memoir that draws on the Rwandan historical archive to bear witness to the trauma of... -
A protocol and tools for setting environmental water temperature guidelines for perennial rivers in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Helen Dallas --- , South Africa Nicholas Rivers-Moore --- , South AfricaHuman activities have cumulatively altered natural thermal regimes, with impacts and occurrences of extreme events amplified and exacerbated by global climate change. This leads to cascading ecological impacts in river systems. This paper translates knowledge generated over more than ten... -
A multi-stakeholder view on director remuneration guidance in South Africa
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Marilee van Zyl --- , South Africa Nadia Mans-Kemp --- , South AfricaPurpose: Given South Africa’s well-developed governance framework, considerable wage inequality and sizeable executive packages, this study was conducted to reflect on the aptness and application of the King IV director remuneration guidelines. -
Climate smart technology for storage of fresh pro-vitamin A bio-fortified cassava
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Olumuyiwa Adekanmi Babarinsa --- , Nigeria Isaac Babatunde Oluwalana --- , Nigeria Mathew Kolawole Bolade --- , NigeriaClimate change is a problem affecting food security across the globe. The climate change effect of rising temperatures can be mitigated by using climate-smart crops such as cassava and climate-smart technology such as an Evaporative Cooling Structure (ECS). A 150 kg... -
Determinants of ICT adoption and uptake at a rural public-access ICT centre: A South African case study
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Cecilia Frans --- , Shaun Pather --- ,The global Covid-19 pandemic has created a heightened sense of awareness of the inequalities that prevail in society. Access to real-time information delivered via broadband internet has become critical for survival. However, the reality of the digital divide implies that... -
Smallholder vegetable farmers’ commercialization to enhance rural livelihoods in the Eastern Cape province, South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Lelethu Mdoda --- , South Africa Mzuyanda Christian --- , South AfricaThis study aims at establishing how vegetables can be commercialized to improve rural livelihoods in the Eastern Cape province of South Africa. A structured questionnaire was used to obtain primary data from 120 multi-purposive selected smallholder vegetable farmers. Descriptive statistics,... -
Social capital and firm performance nexus: The role of new product development capability and environmental dynamism in an emerging economy
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Patrick Awusak Akanpaaba --- , Ghana Ahmed Agyapong --- , Ghana Henry Kofi Mensah --- , Ghana Samuel Yaw Akomea --- , GhanaThis paper seeks to examine the argument that the social capital and market performance link is more pronounced when it is channelled through the new product development capability of the firm. The study further argues that the indirect effect of... -
Soil carbon stock assessment using depth and spatial models on afforested arable lands
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Trevan Flynn --- , Czech Republic Liesl Wiese --- , South Africa Andrei Rozanov --- , South AfricaThe change from grasslands and natural shrubs to afforested arable land has a major impact on soil organic carbon (SOC) stocks. Grasslands are known to be SOC sinks as seen in the Chernozems of North America, Eurasia and South Africa... -
Genetic and morphological variation of Woodland Kingfisher Halcyon senegalensis reveals cryptic mitochondrial lineages and patterns of mitochondrial–nuclear discordance
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Monica Mwale --- South African National Biodiversity Institute (SANBI), South Africa Desiré L Dalton --- South African National Biodiversity Institute (SANBI), South Africa Anna S Kropff --- South African National Biodiversity Institute (SANBI), South Africa Kim Labuschagne --- South African National Biodiversity Institute (SANBI), South Africa Isa-Rita Russo --- Cardiff University, United Kingdom Samuel T Osinubi --- University of Cape Town, South AfricaThe Woodland Kingfisher Halcyon senegalensis is widely distributed throughout sub-Saharan Africa and occupies a wide variety of woodland and savannah habitat. Thus far, three subspecies have been described based on morphological variation. In the present study, using western, eastern and... -
Cinereous Vulture Aegypius monachus movements between Europe and Africa show a pattern across the Strait of Gibraltar
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Juan Ramírez --- Malaga University, Spain Javier Elorriaga --- , Spain Andrés de la Cruz --- Spanish Institute of Oceanography (IEO), Spanish National Research Council (CSIC), SpainThe biology of the Cinereous Vulture Aegypius monachus is well known across its breeding range, and the species’ dispersal and movements throughout Europe are widely recorded. However, the ecology of this vulture south of the Mediterranean Sea has been overlooked,... -
Effect of slope aspect on vegetation characteristics in mountain rangelands of Tajikistan: considerations for future ecological management and restoration
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Mounir Louhaichi --- , Tunisia Rajabov Toshpulot --- , Uzbekistan Hloniphani Peter Moyo --- , Jordan Azaiez Ouled Belgacem --- , Kingdom of Saudi ArabiaTajikistan’s rangelands are mostly mountainous and consist of summer and winter pastures. Vegetation structure and composition in these diverse landscapes are generally influenced by environmental factors. The objective of this study was to assess the effects of aspect on vegetation... -
Universal lines in graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Juan Alberto Rodríguez-Velázquez --- Universitat Rovira i Virgili, SpainIn a metric space M = (X, d), a line induced by two distinct points x, x′ ∈ X, denoted by , is the set of points given by -
Extensions and dilations of module maps
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Massoud Amini --- Tarbiat Modares University, IranWe study completely positive module maps on C*-algebras which are C*-module over another C*-algebra with compatible actions. We extend several well known dilation and extension results to this setup, including the Stinespring dilation theorem and Wittstock, Arveson, and Voiculescu extension... -
Effect of simplified dietary advice on nutritional status and uremic toxins in chronic kidney disease participants
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Zarina Ebrahim --- Stellenbosch University, South Africa Griet Glorieux --- Ghent University Hospital, Belgium M Rafique Moosa --- Stellenbosch University, South Africa Renée Blaauw --- Stellenbosch University, South Africa -
Business incubation initiatives and innovation capabilities of micro-sized enterprises: Exploring the software ICT value chain
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Oluyemi Theophilus Adeosun --- University of Lagos Nigeria, Nigeria Ibrahim Ayodele Shittu --- University of Lagos Nigeria, NigeriaPromoting innovative capabilities in Small and Medium Scale Enterprises (SMEs) is crucial if African countries are to progress in terms of being active in the Global Value Chain (GVC) and achieve inclusive development. Enhancing innovative capabilities in the Information Communication... -
Exit from social assistance in sub-Sahara Africa: The reality of livelihood empowerment against poverty in the Upper West Region, Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Moses Naiim Fuseini --- Department of Public Policy and Management, SD Dombo University of Business and Integrated Development Studies, Ghana Ibrahim Abu Abdulai --- SD Dombo University of Business and Integrated Development Studies, Ghana William Quarmine --- BlueCrest College, Ghana Shaibu Bukari --- University of Cape Coast, GhanaGlobally, there is a frantic rush to establish social assistance programmes such as Livelihood Empowerment Against Poverty (LEAP), which are viewed as a panacea for poverty reduction. Nonetheless, prior research ignored the critical issue of exiting these programmes, which is... -
Ghana’s pineapple innovation history: An account from stakeholders in Nsawam Adoagyiri Municipal Assembly
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Daniel Adu Ankrah --- School of Agriculture, University of Ghana, GhanaDespite the pineapple fruit contributing significantly towards Ghana’s non-traditional export, the empirical space deficiently accounts for innovations within the sector. This article addresses prime questions that beg answering such as: the origin of innovations, when, how, what conditions facilitate adoption... -
Artistic gymnastics mirror teaching approach efficacy for improving interpersonal skills of college students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Zan Zhou --- Shaoxing University, China Haibo Tian --- Shaoxing University, China Siwei Luo --- Shaoxing University, China Yao Wang --- Shaoxing University, China Dan Shi --- Zhejiang Yuexiu University, ChinaThis study aimed at improving the interpersonal skills of college students through an intervention of artistic gymnastics mirror teaching approach. Following a longitudinal study quasi-experimental design, 30 students were randomly assigned to the artistic gymnastics' intervention, and 30 students were... -
Fear of COVID-19 and job insecurity among hospitality industry employees: The mediating role of happiness
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Emete Toros --- University of Kyrenia, Ahmet Maslakçı --- Cyprus Science University, Northern Cyprus Lütfi Sürücü --- European Leadership University, North CyprusWorldwide, COVID-19 had an unprecedented impact on the lives of people. This study explored the association between the fear of COVID-19 and job insecurity of Turkish hospitality employees, as well as the role of work happiness in that relationship. Survey... -
Helly-type results for 3-disjoint families of convex bodies in the plane
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Zokhrab Mustafaev --- University of Houston-Clear Lake, USA Jamesley Norvil --- University of Houston-Clear Lake, USAIn this note, we prove that a family of non-overlapping, 3-disjoint convex bodies in the plane with the property S(n) will also have the property S(n + 1) for n ≥ 5. This result leads confirming the conjecture of Revenko-Soltan. -
Wardowski and Ćirić type fixed point theorems over non-triangular metric spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: V. Rakočević --- University of Niš, Serbia K. Roy --- The University of Burdwan, India M. Saha --- The University of Burdwan, IndiaIn this manuscript, we establish a fixed point theorem for F -Suzuki contraction mapping over a non-triangular metric space and also give a discussion as remarks on the non-triangular metric structure. Moreover we introduce non-triangular metric-like space and prove a... -
A look at the structure of congruence frames by means of Heyting congruences
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: John Frith --- University of Cape Town, South Africa Anneliese Schauerte --- University of Cape Town, South AfricaThis paper concerns the congruence frame in the setting of partial frames, which, in contrast to full frames, do not necessarily have all joins. Examples of these include bounded distributive lattices, σ- and κ-frames. A new class of congruences, called... -
The African Bird Atlas Project: a description of the project and BirdMap data-collection protocol
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Michael Brooks --- University of Cape Town, South Africa Sanjo Rose --- University of Cape Town, South Africa Res Altwegg --- University of Cape Town, South Africa Alan TK Lee --- University of Cape Town, South Africa Henk Nel --- , South Africa Ulf Ottosson --- A.P. Leventis Ornithological Research Institute, Nigeria Ernst Retief --- , South Africa Chevonne Reynolds --- University of the Witwatersrand, South Africa Peter G Ryan --- University of Cape Town, South Africa Sidney Shema --- , Kenya Talatu Tende --- A.P. Leventis Ornithological Research Institute, Nigeria Les G Underhill --- University of Cape Town, South Africa Robert L Thomson --- University of Cape Town, South AfricaThe African Bird Atlas Project (ABAP) is a citizen-science bird-monitoring programme that relies on a robust, repeatable protocol (BirdMap) and allows insights into the distributions of African birds and their conservation. The protocol involves collecting bird lists within spatial sampling... -
Impacts and trapping of ambrosia beetles Euwallacea fornicatus and E. similis in Acacia plantations in Vietnam
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tran Xuan Hung --- Vietnamese Academy of Forest Sciences, Vietnam Pham Quang Thu --- Vietnamese Academy of Forest Sciences, Vietnam Nguyen Minh Chi --- Vietnamese Academy of Forest Sciences, Vietnam Le Van Binh --- Vietnamese Academy of Forest Sciences, Vietnam Bernard Dell --- Vietnamese Academy of Forest Sciences, VietnamThere are over two million hectares of Acacia plantations in Vietnam and loss from infestations of ambrosia beetles is of increasing concern. In this study, we first determined the key taxa and the extent of damage, and then identified effective... -
Psychological flexibility as a moderator of the relationship between HIV-related stigma and resilience among HIV/AIDS patients
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Chinenye Joseph Aliche --- University of Nigeria, Nigeria Chuka Mike Ifeagwazi --- University of Nigeria, Nigeria Chisom Christopher Ozor --- University of Nigeria, NigeriaHIV-related stigmatisation is common in many parts of the world and is experienced by all categories of people living with HIV and AIDS (PLWHA). Although the negative consequences of HIV-related stigmatisation on the resilience of PLWHA is well documented, little... -
“Armed with faith”: church membership, Pentecostal beliefs and migrant belonging in Harare, Zimbabwe
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Rufaro Hamish Mushonga --- University of Zimbabwe, ZimbabweThis ethnographic study explores how church membership and Pentecostal beliefs afford Nigerian migrant traders living in Harare an opportunity to embed themselves within the spaces of Harare’s Downtown informal settlement, which are characterised by entrenched and heightened forms of exclusion... -
uMama wekhaya: local subjectivities, water infrastructures and grounded perceptions of development in Agnes Rest, Eastern Cape, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Zikhona N. Ngqula --- University of the Witwatersrand, South AfricaThis article provides a window into the lives of the residents of Agnes Rest, a rural village in the Eastern Cape province of South Africa. Using water infrastructures, I explore how two local terms umama wekhaya and abuntu babelungu, express... -
“Working time” in environmental activism: Engaging “slow violence” in the Philippi Horticultural Area
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Matthew Wingfield --- Stellenbosch University, South AfricaTracing the history of activism in post-apartheid South Africa from the Treatment Action Campaign to the Social Justice Coalition, amongst others, one is able to develop an account of various practices and strategies that have been utilised to leverage state... -
Understanding the translocation dynamics of Nile tilapia (Oreochromis niloticus) and its ecological consequences in East Africa
Item type: Journal Article • Journal: African Zoology • Authors: Papius Dias Tibihika --- National Fisheries Resources Research Institute, Uganda Harald Meimberg --- Institute for Integrative Nature Conservation Research, University of Natural Resources and Life Sciences Vienna (BOKU), Austria Manuel Curto --- Institute for Integrative Nature Conservation Research, University of Natural Resources and Life Sciences Vienna (BOKU), AustriaThe Nile tilapia (Oreochromis niloticus) is the second-most economically important fish species in East African countries (EAC), surpassed only by the Nile perch (Lates niloticus). It is the most-farmed freshwater fish species in EAC and the second-most-farmed worldwide. Currently, in... -
Guidelines for conducting rapid reviews in psychology research
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ryan Evan du Toit --- North-West University, South Africa Werner de Klerk --- North-West University, South AfricaVarious guidelines are available to conduct rapid reviews. However, inconsistencies regarding the methodological practices are prevalent. Following a literature review process, the following databases were searched for guidelines on conducting rapid reviews in psychology: Academic Search Complete, CINAHL, Cochrane Database... -
Long-term experimental data and crop modelling to inform the ecological intensification of irrigated wheat production in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S Magwaza --- University of Pretoria, South Africa M van der Laan --- University of Pretoria, South Africa D Marais --- University of Pretoria, South AfricaWheat (Triticum aestivum L.) production is threatened by climate change and the decline in agricultural land available due to urbanisation, farmers switching to other crops, and environmental degradation. The aim of this study was to investigate the ecological intensification (EI)... -
Impact of liming on extractable phosphorus, exchangeable base cations, and effective cation exchange capacity of eastern Free State soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: HJJ van Zyl --- University of the Free State, South Africa CC du Preez --- University of the Free State, South AfricaSoil acidity can adversely affect wheat production in the eastern Free State, South Africa. Liming of the soils is therefore essential. The aim of this study was to establish whether extractable phosphorus (P), exchangeable calcium (Ca), magnesium (Mg) and potassium... -
The Laplace transform on the rearrangement of invariant spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: René Erlin Castillo --- Departamento de Matemáticas Universidad Nacional de Colombia, Colombia A. Ricardo Miranda B. --- Departamento de Matemáticas Universidad Nacional de Colombia, Colombia Julio C. Ramos-Fernández --- Universidad Distrital Francisco José de Caldas, ColombiaIn a self contained presentation we study the boundedness of the Laplace transform on the rearrangement invariant Lebesgue Lp -space, we use real analysis techniques provided by convex analysis and the K-method. -
Appell-Carlitz numbers
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Su Hu --- South China University of Technology, China Min-Soo Kim --- Kyungnam University, Republic of KoreaIn this paper, we introduce the concept of the (higher order) Appell-Carlitz numbers which unifies the definitions of several special numbers in positive characteristic, such as the Bernoulli-Carlitz numbers and the Cauchy-Carlitz numbers. Their generating function is named Hurwitz series... -
Modules whose exact submodules are essentially embedded in summands
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Fıgen Takıl Mutlu --- Eskisehir Technical University, Turkey Adnan Tercan --- Hacettepe University, Turkey Ramazan Yaşar --- Hacettepe University, TurkeyIn this article we study the condition that every exact submodule is essentially embedded in direct summands in a module. It is shown that the class of modules with former property is closed under direct sums. However, we provide examples... -
Human resources and innovation capability: Evidences from Nigeria food and beverage firms
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Helen Olubunmi Aderemi --- Obafemi Awolowo University, Nigeria Victor Oluwasina Sobanke --- National Centre for Technology Management (NACETEM), Nigeria Matthew Olugbemiga Ilori --- Obafemi Awolowo University, NigeriaHuman resources are recognized as the ultimate and most indispensable resource in economic development. In this study, an inquiry was made to ascertain the determinants of workers’ innovativeness. A survey of 229 respondents in food and beverage processing firms selected... -
Digital Jordan curves and surfaces with respect to a graph connectedness
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Josef Šlapal --- Brno University of Technology, Institute of Mathematics, Czech RepublicWe introduce a graph connectedness induced by a given set of paths of the same length. We focus on the 2-adjacency graph on the digital line ℤ with a certain set of paths of length n for every positive integer... -
The meaning and challenge of voluntary counselling and testing (VCT) for counsellors — report of the Kenya Association of Professional Counsellors (KAPC) conference for sub-Saharan Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Cecilia Rachier [CXX0001] Elias Gikundi [B0002] Don Balmer --- Senior Research Fellow, University of Durham, UK Maggie Robson --- School of Psychology, University of Keele, UK Kathryn Hunt --- University of Durham, UK Nonie Cohen --- Centre for Studies in Counselling, University of Durham, UKA large number of voluntary counselling and testing (VCT) sites are being opened in sub-Saharan Africa. The services provided by these sites are playing an increasingly important role in the prevention of HIV/AIDS. The sites offer many possibilities and it... -
Effect of exposure to clinic-based health education interventions on behavioural intention to prevent mother-to-child transmission of HIV infection
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Jude Igumbor --- School of Health Sciences, University of Venda, South Africa Supa Pengpid --- National School of Public Health, University of Limpopo, South Africa Larry Obi --- University of Venda, South AfricaHIV and AIDS incidence among infants in South Africa is on the increase. The uptake of prevention of mother-to-child transmission (PMTCT) interventions is often said to be dependent on the beliefs and educational needs of those requiring PMTCT services. This... -
The Farmer Life School: experience from an innovative approach to HIV education among farmers in South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kees Swaans --- Athena Institute for Research on Innovation and Communication in Health and Life Sciences, VU University Amsterdam, the Netherlands Jacqueline Broerse --- Department Science Communication, Athena Institute for Research on Innovation and Communication in Health and Life Sciences, VU University Amsterdam, the Netherlands Monique Salomon --- Centre for Environment, Agriculture and Development (CEAD), University of KwaZulu-Natal, South Africa Maxwell Mudhara --- Farmer Support Group, Community Development and Outreach Division of the Centre for Environment, Agriculture and Development, University of KwaZulu-Natal, South Africa Makhosazana Mweli --- , South Africa Joske Bunders --- Athena Institute of the VU University Amsterdam, the NetherlandsThe Farmer Life School (FLS) is an innovative approach to integrating HIV education into life skills and technical training for farmers. This study aims to gain insight into the strengths and weaknesses of this relatively new approach, through the implementation... -
Resources and infrastructure for the delivery of antiretroviral therapy at primary health care facilities in the Free State Province, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Ega Janse van Rensburg-Bonthuyzen --- Centre for Health Systems Research and Development, University of the Free State, Michelle Engelbrecht --- Centre for Health Systems Research and Development, University of the Free State, Francois Steyn --- Centre for Health Systems Research and Development, University of the Free State, Nandi Jacobs --- Centre for Health Systems Research and Development, University of the Free State, Helen Schneider --- Centre for Health Policy, University of Witwatersrand, Dingie van Rensburg --- Centre for Health Policy, University of Witwatersrand,There are concerns as to whether South Africa's public health system has sufficient resources, human and otherwise, to ensure universal access to antiretroviral treatment (ART). We report on public sector implementation of the Comprehensive Care Management and Treatment (CCMT) programme... -
Prevalence and social correlates of sexual intercourse among schoolgoing adolescents in Namibia
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kazhila Croffat Chinsembu --- Department of Biological Sciences, University of Namibia, Seter Siziya --- Department of Community Medicine of the School of Medicine, University of Zambia, Adamson S Muula --- Community and Public Health, University of Malawi College of Medicine, Emmanuel Rudatsikira --- Division of Epidemiology and Biostatistics, School of Public Health, San Diego State University,Adolescent sexuality is an important public health issue, as it affects risk to contract HIV and other sexually transmitted infections. The assessment of prevalence of sexual intercourse among adolescents is of public health significance, as it may guide policies and... -
Barriers and facilitators to patients' adherence to antiretroviral treatment in Zambia: a qualitative study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Nawa Sanjobo --- Copperbelt University, Jan C Frich --- Research Unit for General Practice, University of Oslo, Atle Fretheim --- Preventive and International Health Care Unit, Norwegian Knowledge Centre for Health Services, NorwayPatients' adherence to antiretroviral therapy (ART) is important for effective medical treatment of HIV/AIDS. We conducted a qualitative interview study in the Copperbelt Province of Zambia in 2006. The aim of the study was to explore patients' and health care... -
SISTA South Africa: The adaptation of an efficacious HIV prevention trial conducted with African-American women for isiXhosa-speaking South African women
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Dorina Saleh-Onoya [CXX0001] Nikia Danette Braxton --- Rollins School of Public Health Department of Behavioral Sciences and Health Education, Emory University , Sibusiso Sifunda --- Health Promotion R & D Unit, Medical Research Council (MRC), Priscilla Reddy --- Health Promotion R & D Unit, Medical Research Council (MRC), Robert Ruiter --- Maastricht University, Bart van den Borne [B0006] Tiffany Pennick Walters --- Emory University Rollins School of Public Health, Delia Lang --- Rollins School of Public Health Department of Behavioral Sciences and Health Education, Emory University , Gina M Wingood --- Department of Behavioral Science and Health Education, Rollins School of Public Health,Although new HIV treatments continue to offer hope for individuals living with HIV, behavioural interventions shown to reduce HIV risk behaviour remain one of the most powerful tools in curbing the HIV epidemic. Unfortunately, the development of evidencebased HIV interventions... -
Barriers and facilitators to antiretroviral medication adherence among HIV-infected paediatric patients in Ethiopia: A qualitative study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Sibhatu Biadgilign --- John Hopkins University's Technical Support for the Ethiopian HIV/AIDS ART Initiative, Amare Deribew --- Department of Epidemiology, Jimma University, Alemayehu Amberbir --- Division of Epidemiology and Public Health, University of Nottingham, Kebede Deribe --- FIDA, EthiopiaMedication adherence is a complex behaviour with multiple determinants. Understanding the barriers and facilitators of adherence is invaluable for programme improvement, which assists the foundation of adherence intervention strategies. A qualitative study was conducted in six selected hospitals of Addis... -
High levels of psychosocial readiness for ART in an African population at the onset of treatment
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Brent Wolff --- MRC/UVRI Uganda Research Unit on AIDS, Martin Mbonye --- MRC/UVRI Uganda Research Unit on AIDS, Alex Coutinho --- Infectious Diseases Institute, Makerere University, Uganda Barbara Amuron --- MRC/UVRI Uganda Research Unit on AIDS, Robert Nkabala --- The AIDS Support Organization (TASO), Uganda Shabbar Jaffar --- Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, UK Heiner Grosskurth --- MRC/UVRI Uganda Research Unit on AIDS,Adherence at the earliest stages of treatment is likely to be influenced by prior illness trajectories and future expectations, best captured (and addressed) before treatment begins. We examined the influence of illness trajectories and treatment expectations on psychosocial readiness to... -
Perceived stigma among patients receiving antiretroviral treatment: A prospective randomised trial comparing an m-DOT strategy with standard-of- care in Kenya
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Susan Kaai --- Department of Health Studies and Gerontology, University of Waterloo, Canada Sandra Bullock --- Department of Health Studies and Gerontology, University of Waterloo, Canada Avina Sarna --- Population Council, Matthew Chersich --- Centre for Health Policy, University of the Witwatersrand, Stanley Luchters --- International Centre for Reproductive Health (ICRH), Department of Obstetrics and Gynecology, Ghent University, Belgium Scott Geibel --- Population Council, Paul Munyao --- ICAP, Kenya Kishorchandra Mandaliya --- , Kenya Marleen Temmerman --- Obstetrical Department, Ghent University Hospital, Naomi Rutenberg --- Population Council,HIV and AIDS remain highly stigmatised. Modified directly observed therapy (m-DOT) supports antiretroviral treatment (ART) adherence but little is known about its association with perceived stigma in resource-constrained settings. In 2003, 234 HIV-infected adults enrolled in a two-arm randomised trial... -
Social capital and the decline in HIV transmission – A case study in three villages in the Kagera region of Tanzania
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Gasto Frumence --- Department of Development Studies, Muhimbili University of Health and Allied Sciences, Tanzania Japhet Killewo --- Department of Biostatistics and Epidemiology, Muhimbili University of Health and Allied Sciences, Tanzania Gideon Kwesigabo --- Department of Biostatistics and Epidemiology, Muhimbili University of Health and Allied Sciences, Tanzania Lennarth Nyström --- Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umeå University, Sweden Malin Eriksson --- Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umeå University, Sweden Maria Emmelin --- Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umeå University, SwedenWe present data from an exploratory case study characterising the social capital in three case villages situated in areas of varying HIV prevalence in the Kagera region of Tanzania. Focus group discussions and key informant interviews revealed a range of... -
Perceptions of the availability and effectiveness of HIV/AIDS awareness and intervention programmes by people with disabilities in Uganda
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Regis Chireshe --- Faculty of Education, Walter Sisulu University, South Africa Edward Ntare Rutondoki --- Department of Psychology, Kyambogo University, Uganda Paul Ojwang --- Department of Community and Disability Studies, Kyambogo University, UgandaThe study investigated perceptions of the availability and effectiveness of HIV/AIDS awareness and intervention programmes by people with disabilities in Uganda. Participants (N=95) were made up of 15 leaders of disabled people's organisations (DPOs) and 80 people with disabilities (PWDs)... -
Addressing HIV/AIDS challenges in Uganda: does social capital generation by NGOs matter?
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Roberts Kabeba Muriisa --- Faculty of Development Studies, Mbarara University of Science and Technology, Uganda Ishtiaq Jamil --- Department of Administration and Organization Theory, University of Bergen, NorwayHIV/AIDS has had devastating impacts in many countries, Uganda in particular. However, Uganda is depicted as one of the most successful countries in fighting HIV/AIDS. Among others, Uganda's success story is attributed to the open general environment which allows open... -
Male circumcision and its association with HIV infection and sexually transmitted diseases: evidence from 18 demographic and health surveys in sub-Saharan Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Samson Gebremedhin --- Hawassa University, EthiopiaThe study aimed to assess the association between male circumcision and HIV infection and STDs. The issue is controversial as various studies reported conflicting findings. A cross-sectional comparative study based on the secondary data of 18 Demographic Health Surveys (DHS),... -
Appraisal of the inherent socio-demographic dynamics of HIV/AIDS epidemic in four districts of South-Western Uganda
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: E. Agwu --- Tropical Disease Research Unit, Department of Medical Microbiology & Parasitology, Faculty of Biomedical Sciences, School of Health Sciences, Kampala International University, Western Campus, Republic of Uganda V. Pazos --- Tropical Disease Research Unit, Department of Medical Microbiology & Parasitology, Faculty of Biomedical Sciences, School of Health Sciences, Kampala International University, Western Campus, Republic of Uganda J. C. Ihongbe --- Department of Medical Laboratory Sciences, Faculty of Basic Medical Sciences, College of Medicine, Ambrose Alli University, Nigeria J. Ssengendo --- Social Sciences Research Division, Directorate of Postgraduate Studies and Research, Kampala International University, UgandaAlthough HIV prevalence in Uganda is much lower than it once was, AIDS is still claiming many lives each year with clear signs of escalating rural epidemics. The objective of this study was to appraise the socio-economic and demographic dynamics... -
Accessibility of antiretroviral therapy in Ghana: Convenience of access
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Joyce Addo-Atuah [d138e18] Dick Gourley Greta Gourley Shelley I. White-Means Robin J. Womeodu Richard J. Faris Nii Akwei AddoThe convenience of accessing antiretroviral therapy (ART) is important for initial access to care and subsequent adherence to ART. We conducted a qualitative study of people living with HIV/AIDS (PLWHA) and ART healthcare providers in Ghana in 2005. The objective... -
Rewriting the narrative of the epidemiology of HIV in sub-Saharan Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Stefan Baral [d166e18] Nancy Phaswana-MafuyaThe fight against HIV remains complicated with contracting donor resources and high burden of HIV among reproductive age adults still often limiting independent economic development. In the widespread HIV epidemics of sub-Saharan Africa (SSA), it is proposed that key populations... -
A decade of research involving men who have sex with men in sub-Saharan Africa: Current knowledge and future directions
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Nicholas Muraguri Marleen Temmerman Scott Geibel [d199e38]It has been just over 10 years since the first large behavioral survey of men who have sex with men (MSM) was implemented in Senegal in 2001. Since then, behavioral and/or HIV prevalence surveys have been conducted in over 14... -
Demand for programs for key populations in Africa from countries receiving international donor assistance
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Owen Ryan [d181e18] John Macom Michelle Moses-EisensteinThere has been increasing attention in recent years to the HIV prevention, treatment, and care needs of key populations in Africa, in particular men who have sex with men (MSM), injection drug users (IDU), and female sex workers (FSW). While... -
Taxi ‘sugar daddies’ and taxi queens: Male taxi driver attitudes regarding transactional relationships in the Western Cape, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Cheryl Potgieter [d53e18] Anna Strebel Tamara Shefer Claire WagnerMedia reports are emerging on the phenomenon of young girls who travel with older mini-bus taxi drivers, and who are thought to have sex with the drivers in exchange for gifts and money. The extent to which such relationships might... -
Efficacy of a lay health worker led group antiretroviral medication adherence training among non-adherent HIV-positive patients in KwaZulu-Natal, South Africa: Results from a randomized trial
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karl Peltzer [d77e18] Shandir Ramlagan Deborah Jones Stephen M. Weiss Henry Fomundam Lucia ChanetsaThere is a lack of theory-based randomized controlled trials to examine the effect of antiretroviral adherence in sub-Saharan Africa. We assessed the effectiveness of a lay health worker lead structured group intervention to improve adherence to antiretroviral therapy (ART) in... -
HIV-related symptoms and management in HIV and antiretroviral therapy patients in KwaZulu-Natal, South Africa: A longitudinal study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karl Peltzer --- , South AfricaAim: The study aimed to determine the prevalence, predictors, and self-reported management of HIV- or ARV-related symptoms among HIV patients prior to antiretroviral therapy (ART) and over three time points while receiving ART in KwaZulu-Natal, South Africa. Method: A total... -
The physical activity levels among people living with human immunodeficiency virus/acquired immunodeficiency syndrome receiving high active antiretroviral therapy in Rwanda
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: J.M. Frantz --- , South Africa A. Murenzi --- , South AfricaThe accessibility of high active antiretroviral therapy (HAART) for local human immunodeficiency virus (HIV) patients is improving in Rwanda. It is well known that this therapy is associated with serious adverse effects, such as metabolic and morphologic changes. One of... -
Changes in sexual behaviour and practice and HIV prevalence indicators among young people aged 15–24 years in Zambia: An in-depth analysis of the 2001–2002 and 2007 Zambia Demographic and Health Surveys
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Joshua Kembo --- , South AfricaHIV and AIDS still pose a major public health problem to most countries in sub-Saharan Africa, Zambia included. The objective of the paper is to determine changes in selected sexual behaviour and practice and HIV prevalence indicators between 2001–2002 and... -
The duty to disclose in Kenyan health facilities: a qualitative investigation of HIV disclosure in everyday practice
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Eileen Moyer [d338e14] Emmy Kageha Igonya Rosalijn Both Peter Cherutich Anita HardonDisclosure of HIV status is routinely promoted as a public health measure to prevent transmission and enhance treatment adherence support. While studies show a range of positive and negative outcomes associated with disclosure, it has also been documented that disclosing... -
TB/HIV risk factors identified from a General Household Survey of South Africa in 2006
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Sathiya Susuman Appunni --- , , South Africa Renette Blignaut --- , , South Africa Siaka Lougue --- , , South AfricaThe level of human immunodeficiency virus (HIV), tuberculosis (TB) as well as the co-infection TB/HIV in South Africa is among the highest in the world. TB is curable while HIV is not, yet the combination of both is a growing... -
HIV in (and out of) the clinic: Biomedicine, traditional medicine and spiritual healing in Harare
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Stephen O'Brien --- , , Australia Alex Broom --- , , AustraliaContemporary lived experiences of the human immunodeficiency virus (HIV) are shaped by clinical and cultural encounters with illness. In sub-Saharan countries such as Zimbabwe, HIV is treated in very different ways in various therapeutic contexts including by biomedical experts, traditional... -
Expanding the prevention armamentarium portfolio: A framework for promoting HIV-Conversant Communities within a complex, adaptive epidemiological landscape
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Christopher J. Burman --- , , South Africa Marota Aphane --- , , South Africa Oliver Mtapuri --- , , South Africa Peter Delobelle --- , , South AfricaThe article describes a design journey that culminated in an HIV-Conversant Community Framework that is now being piloted in the Limpopo Province of South Africa. The objective of the initiative is to reduce the aggregate community viral load by building... -
Responses to the global HIV and AIDS pandemic: a study of the role of faith-based organisations in Lesotho
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Dejo Olowu --- , , NigeriaThis article attempts to establish the key contribution by people of faith to the global HIV pandemic response, using Lesotho as a case study. Particular focus is paid to the work of selected religious organisations in Lesotho in this context,... -
Towards an integrated approach to health and medicine in Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kezia Batisai --- , , South AfricaThis article frames the intersections of medicine and humanities as intrinsic to understanding the practice of health care in Africa. Central to this manuscript, which draws on empirical findings on the interplay between HIV and AIDS and alternative medicine in... -
When the clinic becomes a home. Successful VCT and ART services in a stressful environment
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Jonathan Mensah Dapaah --- , , Ghana Rachel Spronk --- , , The NetherlandsWith the upscaling of antiretroviral therapy (ART) in resource-poor countries, many HIV-positive persons in Ghana have been accessing treatment in hospitals. Prevalence is relatively low compared to other African countries, 1.30%. HIV/AIDS remains heavily stigmatised in Ghana, which influences the... -
A mobile school-based HCT service – is it youth friendly?
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Estelle Lawrence --- , , South Africa Patricia Struthers --- , , South Africa Geert Van Hove --- , , BelgiumBackground: Despite an increase in HIV Counselling and Testing (HCT), few young people have been tested. It has been suggested that they do not test because formal health services (where HCT is provided) are often not youth friendly. The World... -
Gendered differences in AIDS and AIDS-related cause of death among youth with secondary education in South Africa, 2009–2011
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Nicole De Wet --- , , South AfricaBackground: The prevalence of human immunodeficiency virus (HIV)/acquired immune deficiency syndrome (AIDS) is higher among females than males in Sub-Saharan Africa. Education is associated with better health outcomes. For this and other reasons, African countries have made a concerted effort... -
Life skills as a behaviour change strategy in the prevention of HIV and AIDS: Perceptions of students in an open and distance learning institution
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: B.J. Mohapi --- , , South Africa E.M. Pitsoane --- , , South AfricaThe prevention of HIV and AIDS, especially amongst young people, is very important, as they are the future leaders. South Africa carries a high burden of the HIV and AIDS disease, and efforts at the prevention of the disease need... -
Modelling self-assessed vulnerability to HIV and its associated factors in a HIV-burdened country
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: A. F. Fagbamigbe --- , , South Africa A. M. Lawal --- , , South Africa E. S. Idemudia --- , , South AfricaBackground: Globally, individuals’ self-assessment of vulnerability to HIV infection is important to maintain safer sexual behaviour and reduce risky behaviours. However, determinants of self-perceived risk of HIV infection are not well documented and differ. We assessed the level of self-perceived... -
On the periphery of HIV and AIDS: Reflections on stress as experienced by caregivers in a child residential care facility in South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kesh Mohangi --- , , South Africa Chereen Pretorius --- , , South AfricaFew researchers have investigated how female caregivers of institutionalised children, especially those affected by HIV and AIDS, experience stress. The role played by caregivers cannot be overemphasised; yet caregivers who work in institutions caring for orphaned and/or abandoned children affected... -
Laughter therapy as an intervention to promote psychological well-being of volunteer community care workers working with HIV-affected families
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Irene Hatzipapas --- , , South Africa Maretha J. Visser --- , , South Africa Estie Janse van Rensburg --- , , South AfricaThe study explores the experiences of volunteer community care workers working with HIV-affected families, participating in laughter therapy. Laughter therapy is being used as an intervention to positively influence individuals experiencing various forms of emotional distress. Community care workers play... -
Factors associated with knowledge and awareness of HIV/AIDS among married women in Bangladesh: evidence from a nationally representative survey
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Md. Ashiqul Haque --- , , Bangladesh Md. Sha Newaj Hossain --- , , Bangladesh Muhammad Abdul Baker Chowdhury --- , , USA Md. Jamal Uddin --- , , BangladeshWomen in Bangladesh share a greater risk of Human Immunodeficiency Virus (HIV)/Acquired Immune Deficiency Syndrome (AIDS) infection compared to men. Levels of knowledge and awareness largely contribute to the prevalence of the HIV epidemic and its consequences. So, it is... -
A weighted bootstrap approach to logistic regression modelling in identifying risk behaviours associated with sexual activity
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Humphrey Brydon --- , , South Africa Rénette Blignaut --- , , South Africa Joachim Jacobs --- , , South AfricaThe latest population estimates released by Statistics South Africa indicate that 25.03% of all deaths in 2017 in South Africa were AIDS-related. Along with these results, it is also reported that 7.06% of the population were living with HIV, with... -
‘If you are found taking medicine, you will be called names and considered less of a man’: young men’s engagement with HIV treatment and care during ulwaluko (traditional initiation and circumcision) in the Eastern Cape Province of South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: L. Gittings --- University of Cape Town, South Africa R. Hodes --- University of Cape Town, South Africa C. Colvin --- University of Cape Town, South Africa S. Mbula --- Mzantsi Wakho, South Africa P. Kom --- Mzantsi Wakho, South AfricaThis paper explores how HIV-positive abakhwetha (young male initiates) undergoing ulwaluko (traditional Xhosa initiation and circumcision) engage with HIV-related biomedical care and treatment. Health-focused life history narratives (n = 36), semi-structured interviews (n = 32) and analysis of health facility files (n = 41) with adolescent... -
Traditional healers as client advocates in the HIV-endemic region of Maputo, Mozambique: results from a qualitative study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Radhika Sundararajan --- University of California, USA Patricio V. Langa --- Universidade Eduardo Mondlane, Mozambique Trisha Morshed --- Vituity Physician Group, USA Sandra Manuel --- Universidade Eduardo Mondlane, MozambiqueTraditional healers are commonly utilised throughout sub-Saharan Africa instead of – and in concert with – biomedical facilities. Traditional healers are trusted providers and prominent community members and could be important partners in improving engagement with HIV services in endemic... -
Exploring the views of academic staff on HIV/AIDS integration into the curricula: a case study of the University of Fort Hare
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Zukiswa Theodorah Dasheka --- University of Fort Hare, South Africa Nomzamo Dube --- University of Fort Hare, South Africa Lulekwa Baleni --- University of Fort Hare, South Africa Eunice Seekoe --- University of Fort Hare, South Africa Actor Katurura --- University of Fort Hare, South Africa Nombulelo Lubisi --- University of Fort Hare, South Africa Daniel Ter Goon --- University of Fort Hare, South AfricaAs a clarion call by Higher Education HIV/AIDS programme (HEAIDS) to South African universities, entrenching, integration and infusing the teaching and learning of HIV/AIDS in the curriculum of universities prove to be a sustainable solution to changing risky behaviour and... -
Forgetting to take HIV antiretroviral therapy: a qualitative exploration of medication adherence in the third decade of the HIV epidemic in the United States
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: R. Freeman --- , USA M. Gwadz --- New York University Silver School of Social Work, USA K. Francis --- New York University Silver School of Social Work, USA E. Hoffeld --- New York University Silver School of Social Work, USAOptimal adherence to HIV antiretroviral therapy (ART) is challenging, and racial/ethnic disparities in adherence rates are substantial. The most common reason persons living with HIV (PLWH) give for missed ART doses is forgetting. We took a qualitative exploratory approach to... -
A model to understand HIV-related stigma and the psychosocial well-being of children orphaned by AIDS: a theory generative approach
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Z. Yassin --- University of the Western Cape, South Africa C. Erasmus --- University of the Western Cape, South Africa J. Frantz --- University of the Western Cape, South AfricaHIV-related stigma has negatively impacted the psychosocial well-being of children who have been orphaned by AIDS-related causes. Response to reducing stigma and ensuring child well-being is hindered by the limited understanding of HIV-related stigma and how it affects the psychosocial... -
On Bufo pantherinus A. Smith, 1828 (Anura: Bufonidae), the leopard toad of the southwestern Cape, South Africa, with the designation of a neotype
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: JohnC. Poynton --- , UK Angelo J.L. Lambiris --- University of Durban-Westville, South AfricaThe leopard toad of the southwestern tip of Africa has appeared under the names Bufo pantherinus, Bufo cruciger, Bufo regularis and Bufo pardalis. This paper examines the nomenclatural confusion and proposes a neotype of B. pantherinus A. Smith, 1828, to... -
A review of the African Elapsoidea semiannulata complex (Serpentes: Elapidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: DonaldG. Broadley --- ,The status of the three subspecies of Elapsoidea semiannulata is reviewed on the basis of additional material. Typical E. s. semiannulata is extensively parapatric with both E. S. boulengeri and E. sundevallii fitzsimonsi in northeastern Namibia, with no sign of... -
Do rinkhals (Hemachatus haemachatus) choose to defecate near water?
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: ShirleenL. Lazenby --- University of the Witwatersrand, South Africa GrahamJ. Alexander --- University of the Witwatersrand, South Africa -
Diel activity patterns in a captive colony of rinkhals, Hemachatus haemachatus
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: GrahamJ. Alexander --- University of the Witwatersrand, South Africa CatherineL. Marshall --- University of the Witwatersrand, South Africa -
Evolutionary scenarios in the Pachydactylus Group geckos of southern Africa: new hypotheses
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AaronM. Bauer --- Villanova University,Gekkonid lizards constitute one of the most diverse and highly endemic components of the southern African herpetofauna. Although higher order relationships among African geckos remain obscure, the Pachydactylus Group has been widely accepted as monophyletic. Within this clade many taxa... -
Evidence for an Afrotemperate amphibian fauna
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: JohnC. Poynton --- , UKLatitudinal and altitudinal changes in composition of the African amphibian fauna is analysed to test the standard zoogeographical division of the continent into Palaearctic and Afrotropical Regions. A comparably high faunal change north and south of the. tropical savannas suggests... -
Intergroup‐movement in a group‐living lizard, Cordylus cataphractus, from South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Louise Visagie --- University of Stellenbosch, South Africa P. le FrasN. Mouton --- University of Stellenbosch, South Africa AlexanderF. Flemming --- University of Stellenbosch, South Africa -
A review of the species of Psammophis Boie found south of Latitude 12° S (Serpentes: Psammophiinae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DonaldG. Broadley --- Research Associate, Natural History Museum of Zimbabwe,The status, relationships and zoogeography of the 14 taxa of Psammophis found south of Latitude 12° S are reviewed and the following taxonomic changes are proposed: 1. Psammophis trinasalis and P. namibensis, previously treated as subspecies of... -
Pachydactylus katanganus de Witte 1953, a species endemic to the Upemba National Park (Sauria: Gekkonidae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DonaldG. Broadley --- Research Associate, Natural History Museum of Zimbabwe,On morphological and zoogeographical grounds, the isolated populations of Pachydactylus katanganus in the Upemba National Park, Katanga, D.R.C., are considered to represent an evolutionary species. -
Phylogenetic relationships of African caecilians (Amphibia: Gymnophiona): Insights from mitochondrial rRNA gene sequences
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Mark Wilkinson --- The Natural History Museum, UK SimonP. Loader --- The Natural History Museum, UK DavidJ. Gower --- The Natural History Museum, UK JonathanA. Sheps --- University of Glasgow, Scotland, UK BernardL. Cohen --- University of Glasgow, Scotland, UKAfrica (excluding the Seychelles) has a diverse caecilian fauna, including the endemic family Scolecomorphidae and six endemic genera of the more cosmopolitan Caeciliidae. Previous molecular phylogenetic studies have not included any caecilians from the African mainland. Partial 12S and 16S... -
A new species of Arthroleptella Hewitt, 1926 (Anura: Ranidae) from the Groot Winterhoek mountains of the Western Cape province, South Africa
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AndrewA. Turner --- Western Cape Nature Conservation Board, South Africa AthertonL. de Villiers --- Western Cape Nature Conservation Board, South Africa Abeda Dawood --- University of Pretoria, South Africa Alan Channing --- University of the Western Cape, South AfricaA new species of Arthroleptella (moss frog), is described from the Groot Winterhoek Mountains in the Western Cape Province, South Africa. The new species is allopatric to other Arthroleptella species. It is distinguished from other Arthroleptella species by its advertisement... -
The reptiles of southeast Katanga, an overlooked ‘hot spot’
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DonaldG. Broadley --- Research Associate, Natural History Museum of Zimbabwe, F.P.D. Cotterill --- University of Stellenbosch, South AfricaA review of the reptiles recorded from southeast Katanga Province in the Democratic Republic of Congo, employing the evolutionary species concept, indicates that there are at least 119 species in the area (7 chelonians, 37 lizards, 4 amphisbaenians, 69 snakes... -
A review of the southern African ‘non‐spitting’ cobras (Serpentes: Elapidae: Naja)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DonaldG. Broadley --- Research Associate, Natural History Museum of Zimbabwe, Wolfgang Wüster --- University of Wales, Wales, U.K.We analysed the systematics of the ‘non‐spitting’ cobras of southern Africa, paying particular attention to the Naja annulifera complex. Multivariate morphometric analyses demonstrate that the taxa annulifera and anchietae are consistently distinct and homogenous over their respective ranges, and their... -
Molecular phylogenetics of Malagasy skinks (Squamata: Scincidae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AlisonS. Whiting --- Brigham Young University, USA JackW. Sites --- Brigham Young University, USA AaronM. Bauer --- Villanova University, USAMalagasy skinks are a poorly known group, and their relationships have not been critically evaluated previously. In this paper we present a phylogeny of Malagasy “scincine” lizards, based on quantitative phylogenetic analysis of data from seven molecular markers. Our analysis... -
Inter‐island variation and taxonomy of Seychelles Trachylepis
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Justin Gerlach --- University Museum of Zoology Cambridge, U.K.Skinks of the genus Trachylepis are geographically widespread and diverse. In the Seychelles islands two species are present, T. sechellensis and T. wrightii. All island populations of these two species were studied in 2000–2003 and the morphology of the populations... -
Phylogenetic relationships of southern African geckos in the Pachydactylus group (Squamata: Gekkonidae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AaronM. Bauer --- Villanova University, USA Trip Lamb --- East Carolina University, USAPachydactylus and its close relatives (Chondrodactylus, Colopus, Palmatogecko) constitute the most species‐rich component of the southern African gekkonid fauna. We conducted a phylogenetic analysis of mitochondrial (cytb, 12S rRNA, 16S rRNA) and nuclear (RAG‐1) gene sequences for these geckos. Pachydactylus... -
Biogeography of the reptiles of the central African republic
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Laurent Chirio --- Muséum National d'Histoire Naturelle, France Ivan Ineich --- Muséum National d'Histoire Naturelle, FranceA large number of reptiles from the Central African Republic (CAR) were collected during recent surveys conducted over six years (October 1990 to June 1996) and deposited at the Paris Natural History Museum (MNHN). This large collection of 4873 specimens... -
The effect of intergroup distance on group fidelity in the group‐living Lizard, Cordylus cataphractus
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Eloise Costandius --- Stellenbosch University, South Africa P.Le FrasN. Mouton --- Stellenbosch University, South Africa AlexanderF. Flemming --- Stellenbosch University, South AfricaThe effect of intergroup distance on group fidelity in the Armadillo Lizard, Cordylus cataphractus, was studied in the Lambert's Bay/Graafwater area, South Africa. One hundred and six individuals from 27 groups were marked and recaptured regularly from May until September... -
A revision of the East African species of Melanoseps Boulenger (Sauria: Scincidae: Feylininae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DonaldG. Broadley --- Research Associate, Natural History Museum of Zimbabwe, Zimbabwe AlisonS. Whiting --- Brigham Young University, USA AaronM. Bauer --- Villanova University, USAThe East African species of Melanoseps are revised and the following taxonomic changes proposed: 1. M. ater matengoensis Loveridge 1942 and M. ater misukuensis Loveridge 1953 are placed in the synonymy of M. ater (Günther 1873). 2. Melanoseps emmrichi sp... -
A new Dwarf Chameleon (Sauria: Bradypodion Fitzinger, 1843) from the Cape Fold Mountains, South Africa
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: WilliamR. Branch --- Bayworld (Port Elizabeth Museum), South Africa KrystalA. Tolley --- South African National Biodiversity Institute, South Africa ColinR. Tilbury --- University of Stellenbosch, South AfricaA new dwarf chameleon, Bradypodion atromontanum Branch, Tolley & Tilbury sp. nov., is described from mountain fynbos habitat in the Great Swartberg Mountains, Western Cape Province, South Africa. It is closest geographically to Bradypodion gutturale but distinguished by its smaller... -
Diet of a guild of geckos in a fragmented, human‐altered African rainforest
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Lorenzo Rugiero --- F.I.Z.V. (Herpetology), Italy Luca Luiselli --- Centre of Environmental Studies, Italy EdemA. Eniang --- Biodiversity Preservation Center, Nigeria GodfreyC. Akani --- The Rivers State University of Science and Technology, NigeriaThe ecology of gekkonids occurring in African forests is poorly known. In this paper, we analyse the feeding habits of a guild of sympatric geckos at a forest‐plantation mosaic area in south‐eastern Nigeria. Faeces were collected on handling from Hemidactylus... -
Homopholis and blaesodactylus (Squamata: Gekkonidae) revisited: New insights from a molecular phylogeny
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Eli Greenbaum --- Villanova University, USA AaronM. Bauer --- Villanova University, USA ToddR. Jackman --- Villanova University, USASouth African Homopholis Boulenger, 1885 and Madagascan Blaesodactylus Boettger, 1893 are gekkonid genera originally distinguished by minor differences in scalation. Subsequent morphological studies have argued either for synonymy of the genera, or retention of the original 19th century taxonomy. Moreover,... -
A new species of Arthroleptella Hewitt, 1926 (Anura: Pyxicephalidae) from the Klein Swartberg Mountain, Caledon, South Africa
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AndrewA. Turner --- Scientific Services, Western Cape Nature Conservation Board, South Africa Alan Channing --- University of the Western Cape, South AfricaA new species of moss frog (genus Arthroleptella) is described from the Klein Swartberg Mountain near Caledon in the Western Cape Province, South Africa to which it is confined. This allopatric species is distinguished from other Arthroleptella species by the... -
Breaking ground: Quantitative fossorial herpetofaunal ecology in South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Bryan Maritz --- University of the Witwatersrand, South Africa GrahamJ. Alexander --- University of the Witwatersrand, South AfricaBasic ecological data are lacking for many species of herpetofauna, particularly fossorial species. Quantitative analyses of the factors that may influence the occurrence of fossorial herpetofaunal species are rare, with minimal work conducted in southern Africa. We mapped the absolute... -
Typhlosaurus jappi Broadley, 1968, a Valid Species of Acontine Skink
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Victoria Schneider --- Villanova University, USA AaronM. Bauer --- Villanova University, USANew evidence from scalation, dental, and reproductive traits supports the recognition of the Barotseland Blind Legless Skink, Typhlosaurus jappi, as a valid species distinct from T. lineatus. -
Distribution and conservation of the coastal population of the black-headed dwarf chameleon Bradypodion melanocephalum in KwaZulu-Natal
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AdrianJ. Armstrong --- Ezemvelo Kzn Wildlife, South AfricaThe coastal population of the black-headed dwarf chameleon Bradypodion melanocephalum in KwaZulu-Natal appears to be centred on the eThekwini Municipal Area, which is experiencing rapid urban development. This population occurs in few statutory protected areas, all of which are small... -
Aprosdoketophis andreonei, a new genus and species of snake from Somalia (Serpentes: Colubridae: Boiginae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Van Wallach --- , USA Benedetto Lanza --- Museo di Storia Naturale dell'Università di Firenze, Sezione di Zoologia “La Specola”, Italy Annamaria Nistri --- Museo di Storia Naturale dell'Università di Firenze, Sezione di Zoologia “La Specola”, ItalyAn aglyphous colubroid snake representing a new genus and species is described from Somalia. It is a terrestrial form that inhabits xerophytic woodlands. A comparison with both African and extralimital genera indicates that its relationships lie with the opisthoglyph Boiginae... -
The Madagascan spiny-tailed iguana alters the sequence of anti-predator responses depending on predator types
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Ryo Ito --- Kyoto University, Japan Akira Mori --- Kyoto University, Kitashirakawa-Oiwakecho, JapanSome prey are able to avoid specific predators by altering defensive behaviours depending on predator type. In the Ampijoroa forest of Ankarafantsika National Park in Madagascar, Madagascan spiny-tailed iguanas (Oplurus cuvieri cuvieri) inhabit a species rich vertebrate community and are... -
Phylogeny and phylogeography of the Malagasy leaf-tailed geckos in the Uroplatus ebenaui group
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Fanomezana Mihaja Ratsoavina --- Zoological Institute, Technical University of Braunschweig, Germany Miguel Vences --- Zoological Institute, Technical University of Braunschweig, Germany EdwardE. Louis --- Omaha's Henry Doorly Zoo and Aquarium, USALeaf-tailed geckos, genus Uroplatus, are one of the most prominent endemic reptile groups from Madagascar, but the species diversity and diversification of this taxonomic group are not completely understood. Here, we present a phylogenetic reconstruction of the small-sized Uroplatus which... -
Population ecology of Psammobates oculifer in a semi-arid environment
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Toby Keswick --- , , South Africa Margaretha D. Hofmeyr --- , , South AfricaWe studied the ecology of Psammobates oculifer over 13 months near Kimberley, South Africa, to ascertain if the population's life history traits conform to chelonian patterns in arid environments. Capture rates were highest in spring and lowest in winter when... -
Namaqua Dwarf Adders are generalist predators
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Bryan Maritz --- , , USA Graham J. Alexander --- , , South AfricaPrey items vary greatly in the total amount of energy they provide and the costs associated with their location, capture, consumption and assimilation. As a result not all prey types are of equal value, and the relative frequency with which... -
Differentiation within the endemic burrowing skink Pamelaescincus gardineri, across the Seychelles islands, assessed by mitochondrial and nuclear markers
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Joana Valente --- , , Portugal Sara Rocha --- , , Portugal D. James Harris --- , , PortugalUnveiling patterns of genetic differentiation across insular distributions is relevant for biogeographic and conservation reasons. In the Indian Ocean, surprisingly, little is known regarding the genetic structure of many taxa across the Seychelles Islands, despite their importance as old Gondwanic... -
The political economy of bilateral aid: African development and the manufacture of consent
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Peter Blunt --- University of New South Wales, Australia Cecilia Escobar --- Independent Researcher and Consultant, Greece Vlassis Missos --- University of Athens, GreeceThis paper discusses implications for African development arising from our analysis of the political economy of bilateral aid (Blunt, 2023). We argue that the existential threats posed to life on Earth by global warming and nuclear war are a product... -
Participatory inventory and nutritional evaluation of local forage resources for smallholder free-range beef production in semi-arid areas of South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Ayanda Nyambali --- University of Fort Hare, South Africa Julius T Tjelele --- Animal Production Institute, South Africa Mthunzi Mndela --- Animal Production Institute, South Africa Cletos Mapiye --- Stellenbosch University, South Africa Phillip Strydom --- Stellenbosch University, South Africa Emiliano Raffrenato --- Stellenbosch University, South Africa Kennedy Dzama --- Stellenbosch University, South Africa Voster Muchenje --- University of Fort Hare, South Africa Ntuthuko Mkhize --- Animal Production Institute, South AfricaFeed scarcity is a major challenge facing free-range beef farming in semi-arid areas. Specifically, low quality and quantity of forage in rangelands and higher feeding costs are the main constraints limiting smallholder free-range beef farmers’ participation in mainstream beef markets... -
Human capital accumulation and economic growth of Ethiopian economy
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Zemed Degu Mengesha --- Punjabi University, India Lakhwinder Singh --- Punjabi University, IndiaEconomic theory, empirical studies and public policy have underlined the importance of the relationship between human capital accumulation and economic growth. Several developing countries have included human capital development as an integral part of their national development plans and have... -
New host and distribution records for five species of Enterogyrus Paperna, 1963 (Dactylogyridae: Ancyrocephalinae) from cichlid hosts in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Iva Přikrylová --- University of Limpopo, South Africa Sareh Tavakol --- University of Limpopo, South Africa Nico J Smit --- North-West University, South Africa Willem J Smit --- University of Limpopo, South Africa Wilmien J Luus-Powell --- University of Limpopo, South AfricaBetween March 2015 and September 2016, three species of Cichlidae (Coptodon rendalli, Oreochromis mossambicus and Tilapia sparrmanii) were screened for the presence of stomach monogeneans. Four localities across three provinces of South Africa (Limpopo, Northern Cape and North West) were... -
Comparison of formulae for calculating the corrected QT (QTc) interval in an adult population attending a diabetes clinic at a rural hospital in South Africa.
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: BN Mkhwanazi --- University of KwaZulu-Natal, South Africa L Govender --- University of KwaZulu-Natal, South Africa S Pillay --- University of KwaZulu-Natal, South Africa -
HIV infections averted at PEPFAR-APIN clinics in Nigeria: a ten-year retrospective evaluation of the clinical outcomes of post-exposure prophylaxis services
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Abdulmuminu Isah --- University of Nigeria, Nigeria Nneka Uchenna Igboeli --- University of Nigeria, Nigeria Obinna Felix Dim --- University of Nigeria, Nigeria Azubuike Amos Ekwuofu --- University of Nigeria, NigeriaIntroduction: Nigeria contributes a high fraction to the global burden of HIV infections. Post-exposure prophylaxis (PEP) is a proven strategy to prevent transmission of the virus. The aim of this study was to determine the clinical outcomes of PEP in... -
Crossing the Boundary: An Investigation of Transnationalism, Transculturalism and Transracial Marriages in Jane Katjavivi’s Undisciplined Heart and Trudie Amulungu’s Taming My Elephant
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Selma K. Shiyoka --- University of Namibia, Namibia Nelson Mlambo --- University of Namibia, NamibiaThe focus of this paper is to explore the literary portrayal of transnational identities, transculturalism and transracial marriages as presented by two expatriate female writers who have made their niche in the postcolonial Namibian autobiographical (sub) genre, namely, Taming My... -
Who does better on life satisfaction and meaning in life? A Mixed-methods exploration of demographic characteristics and well-being in Ghana
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Angelina Wilson Fadiji --- University of Pretoria, South Africa Shingairai Chigeza --- University of Pretoria, South Africa Bontle Kgopa --- University of Pretoria, South AfricaThe present study examined the relationship between the demographic characteristics of age, sex, religious practice, and standard of living with life satisfaction and meaning in life in a Ghanaian setting. Participants were 394 Ghanaian urban adults (female = 43.90; mean... -
Father influences on child social adaptability: Mediation by peer communication ability
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Zeming Jin --- Shaoxing University, China Ruiqian Li --- Shaoxing University, China Yanyan Liu --- Shaoxing University, China Wenxiao Cui --- Shaoxing University, China Xiao Yang --- Shaoxing University, ChinaWe examined the relationship between fathers’ parenting attitudes and children’s social adaptability, as well as the mediating effect of children’s peer communication ability in that relationship. The participants were 228 young Chinese children (boys =54.3%, girls=45.7%; mean age =5 years,... -
A photo-identification-based assessment model of southern right whales Eubalaena australis surveyed in South African waters, with a focus on recent low counts of mothers with calves
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Brandão --- University of Cape Town, South Africa A Ross-Gillespie --- University of Cape Town, South Africa E Vermeulen --- University of Pretoria, South Africa DS Butterworth --- University of Cape Town, South AfricaPhoto-identification data for southern right whale cow–calf pairs on the South African calving grounds provide one of the longest abundance time-series for any whale population worldwide. Following a very steady increase from a heavily depleted state, surveys since 2015 reflect... -
Magellan mussels Aulacomya atra from the South African coast show high diversity within populations but a lack of geographic differentiation
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JP Grobler --- University of the Free State, South Africa Z Zhao --- University of the Free State, South Africa JW Jones --- , United States A Kotze --- University of the Free State, South AfricaThe Magellan mussel Aulacomya atra is a bivalve mollusc found along parts of the South African and Namibian coastline. Its numbers were low historically compared with other indigenous species but have decreased further since the 1970s owing to habitat invasion... -
Estimating population changes in humpback whales Megaptera novaeangliae migrating past Cape Vidal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Wilkinson --- Cape Peninsula University of Technology, South Africa E Seyboth --- Cape Peninsula University of Technology, South Africa J Olbers --- , South Africa E Vermeulen --- University of Pretoria, South Africa R Kramer --- WILDTRUST, South Africa K Findlay --- Cape Peninsula University of Technology, South AfricaShore-based surveys of humpback whales Megaptera novaeangliae were performed from Cape Vidal, on the east coast of South Africa (iSimangaliso Marine Protected Area, Indian Ocean), from two independent platforms between 27 June and 7 August in 2018 and 2019, to... -
Is it like night and day? Nocturnal versus diurnal perch use by dwarf chameleons (Bradypodion pumilum)
Item type: Journal Article • Journal: Treading a Delicate Tightrope: A principal balancing between education and political change during turbulent times • Authors: Krystal A Tolley --- , South AfricaArboreal chameleons must navigate a complex, three-dimensional landscape consisting of trees, bushes and/or grasses of various sizes. This complexity equates to the microhabitat of chameleons, that is, the branches upon which they perch and through which they move. Therefore, chameleons... -
Spatial interpolation of vertisol physico-chemical properties through ordinary kriging in south-eastern Zimbabwe
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Muketiwa Chitiga --- Lupane State University, Zimbabwe Gabriel Soropa --- Chinhoyi University of Technology, Zimbabwe Trevor Dube --- Midlands State University, Zimbabwe Progress Sengera --- GreenFuel, ZimbabweA decline in sugarcane yields from Block G (∼400 ha) of GreenFuel’s Chisumbanje Estate in south-eastern Zimbabwe prompted a study on spatial variability of the soil physico-chemical parameters in the 2017–2018 farming season. Using a systematic gridding schema, 123 geo-located... -
On the almost h-conformal semi-invariant Riemannian maps
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Kwang Soon Park --- University of Seoul, Republic of Korea Sylvia Szabo --- College of Future Convergence, Dongguk University, Republic of KoreaIn this paper, we introduce hsR maps and ahsR maps from almost quaternionic Hermitian manifolds into Riemannian manifolds as a generalization of almost h-conformal semi-invariant submersions and conformal semi-invariant Riemannian maps. We give some examples of these maps and study... -
Further results on the independent Roman domination number of graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Abel Cabrera Martínez --- Universitat Rovira i Virgili, Spain Frank A. Hernández Mira --- Universidad Autónoma de Guerrero, MéxicoLet f : V (G) → {0, 1, 2} be a function on a graph G with vertex set V (G). Let Vi = {v ∈ V (G) : f (v) = i} for every i ∈ {0, 1, 2}... -
Further investigations on the two variables second Appell hypergeometric matrix function
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mohamed Abdalla --- College of Science, King Khalid University, Saudi Arabia Hala Abd-Elmageed --- South Valley University, Egypt Mahmoud Abul-Ez --- Sohag University, Egypt Mohra Zayed --- College of Science, King Khalid University, Saudi ArabiaOver the last two decades, special matrix functions have become a major area of study for mathematicians and physicists. The famous four Appell hypergeometric matrix functions have received considerable attention by many authors from different points of view. The present... -
Tropical wood species: alternative model to determine the characteristic compressive strength perpendicular to grain
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Arthur Filipe Freire Gomes --- Federal University of São Carlos (UFSCar), Brazil Fernando Júnior Resende Macarenhas --- Rua Luís Reis Santos - Pólo II, University of Coimbra, Portugal Diego Henrique de Almeida --- Federal University of São Carlos (UFSCar), Brazil Alfredo Manuel Pereira Geraldes Dias --- Rua Luís Reis Santos - Pólo II, University of Coimbra, Portugal Tulio Hallak Panzera --- Federal University of São João Del Rey (UFSJ), Brazil Francisco Antônio Rocco Lahr --- University of São Paulo (USP), Brazil André Luis Christoforo --- Federal University of São Carlos (UFSCar), BrazilBrazil has a vast area of native forests with the potential to be sustainably exploited for application in civil construction. Density is a key factor when analysing the characteristics of different wood species and their future uses, and additionally it... -
Global concentration of wood-pulp production, 1961–2021
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Luiz Moreira Coelho Junior --- Federal University of Paraiba, Brazil Thaisa de Sousa Selvatti --- Federal University of Lavras, Brazil Filipe Vanderlei Alencar --- Federal University of Paraiba, Brazil Anna Manuella Melo Nunes --- Federal University of Paraiba, Brazil Maisa Santos Joaquim --- Universidade de Brasilia, Brazil Edvaldo Pereira Santos Júnior --- Federal University of Paraiba, Brazil Alvaro Nogueira de Souza --- Universidade de Brasilia, BrazilWood pulp is one of the main products of forestry worldwide, being a necessary intermediate product for all types of paper produced. In order to understand the market dynamics of this product, this study analyses the global concentration of the... -
Plantation water productivity (PWPWOOD) and not water-use efficiency (WUE) as the measure of commercial plantation yield improvement: a review
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Nkosinathi D Kaptein --- University of KwaZulu-Natal, South Africa Alistair D Clulow --- University of KwaZulu-Natal, South Africa Michele Toucher --- University of KwaZulu-Natal, South Africa Colin S Everson --- University of KwaZulu-Natal, South Africa Steven B Dovey --- Shaw Research Institute, South Africa Ilaria Germishuizen --- Institute for Commercial Forestry Research, South AfricaGlobal demand for forest products is ever-increasing, creating competition for water between downstream water users and commercial forest producers. Tree production should therefore aim at the effective use of water by producing maximum tree biomass from water used with the... -
Some geometric and physical properties of pseudo ψ-conharmonically symmetric manifolds
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Krishnendu De --- Kabi Sukanta Mahavidyalaya, The University of Burdwan, India Uday Chand De --- University of Calcutta, IndiaIn this article, we present a new tensor that generalizes the conharmonic curvature tensor, termed the ψ-conharmonic curvature tensor. In the first part, we derive some fundamental geometrical properties of a pseudo ψ-conharmonically symmetric manifold (briefly, ) and give some... -
The weight distribution of hulls of binary codes from incidence matrices of complete graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Khumbo Kumwenda --- Mzuzu University, Malawi Caleb Namondwe --- Mzuzu University, MalawiWe characterise the weights of all codewords of the hull of the binary code spanned by rows of an incidence matrix Bn of the complete graph Kn for n ≥ 4 and n even. Among others, we show that every... -
Non-existence of translation-invariant derivations on algebras of measurable functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Aleksey Ber --- National University of Uzbekistan, Uzbekistan Jinghao Huang --- University of New South Wales, Australia Karimbergen Kudaybergenov --- Karakalpak State University, Uzbekistan Fedor Sukochev --- University of New South Wales, AustraliaLet S(0,1) be the *-algebra of all classes of Lebesgue measurable functions on the unit interval (0,1) and let be a complete symmetric Δ-normed *-subalgebra of S(0,1), in which simple functions are dense, e.g., L ∞(0,1), L log(0,1), S(0,1) and... -
Core self-evaluations and job embeddedness: Influences on career adaptability and work engagement in Nigerian public sector employees
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Cornelius O. Okorie --- Alex Ekwueme Federal University, Nigeria Felix M. Nwankwo --- Alex Ekwueme Federal University, Nigeria Harrison O. Iwuala --- Alex Ekwueme Federal University, Nigeria Moses O. Agudiegwu --- Alex Ekwueme Federal University, Nigeria Samuel O. Nnadi --- Alex Ekwueme Federal University, Nigeria Joseph O. Nkwede --- Ebonyi State University, Nigeria Charles K. Nwachukwu --- Alex Ekwueme Federal University, Nigeria Christopher C. Arua --- Alex Ekwueme Federal University, Nigeria Kenneth T. Osuebi --- Alex Ekwueme Federal University, Nigeria Ernest N. Ejem --- Alex Ekwueme Federal University, Nigeria Emmanuel S. Chigbata --- Alex Ekwueme Federal University, NigeriaThis study examined the mediation effect of job embeddedness and the moderating effect of core self-evaluation in the relationship between career adaptability and work engagement among a sample of 387 employees of 12 local government areas of Nigeria (female =... -
The birth of Boererate: women and healing during the South African war
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jeanie Blackbeard --- University of Pretoria, South Africa Fraser G. McNeill --- University of Pretoria, South AfricaThis article reinterprets historical works on the history of medicine in South Africa and how present-day Afrikaner home-based healing therapies known as Boererate engage with this history. By reinterpreting historical sources, we illustrate how Boer women in concentration camps during... -
Reproduction of the Western Marsh Harrier Circus aeruginosus at the El Maleh Dam reservoir in north-western Morocco
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Abdeslam Rihane --- , Morocco Abdelmottalib Nahli --- Hassan II Université Casablanca, Morocco Rhimou El Hamoumi --- Hassan II Université Casablanca, Morocco Mohamed Chlaida --- Hassan II Université Casablanca, MoroccoThe reproduction of the Western Marsh Harrier Circus aeruginosus in submerged and dried up thickets of French tamarisk Tamarix gallica at El Maleh Dam reservoir, Benslimane Province, Morocco, was studied through monitoring nests in three successive years (2017–2019). Systematic field... -
Conservation status and threats to lovebirds: knowledge gaps and research priorities
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sascha Dueker --- University of KwaZulu-Natal, South Africa Sandi Willows-Munro --- University of KwaZulu-Natal, South Africa Michael R Perrin --- University of KwaZulu-Natal, South Africa Yilma D Abebe --- , Ethiopia Nathaniel ND Annorbah --- University of Environment and Sustainable Development, Ghana Esther W Mwangi --- National Museums of Kenya, Kenya Ireene R Madindou --- National Museums of Kenya, Kenya Wondimagegnehu Tekalign --- Wolaita Sodo University, Ethiopia Emiliano Mori --- Istituto di Ricerca sugli Ecosistemi Terrestri, Italy Tiwonge I Mzumara --- , United Kingdom Chris Brown --- , Namibia Ursula Bryson --- , Namibia Henry Ndithia --- National Museums of Kenya, Kenya Tim Dodman --- , United Kingdom Henriette van der Zwan --- North-West University, South Africa Rencia van der Sluis --- North-West University, South Africa Chaona R Phiri --- Manchester Metropolitan University, United Kingdom Abigail Karimanzira --- , Zimbabwe Rowan O Martin --- , United KingdomLovebirds (genus Agapornis of family Psittaculidae) are a group of small, colourful parrot species endemic to sub-Saharan Africa and Madagascar, two-thirds of which are considered to have declining populations. Effective conservation efforts are hampered by a lack of information, particularly... -
Sunning in Yellow Bishops Euplectes capensis
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: H Dieter Oschadleus --- University of KwaZulu-Natal, South Africa Philipp H Boersch-Supan --- , United KingdomTwo photographic records of a Yellow Bishop Euplectes capensis apparently sunning, at the West Coast National Park, South Africa, are described. There are very few records of sunning in weavers, and this is the first record for this species. -
On localization of the Menger property
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Nur Alam --- University of Gour Banga, India Debraj Chandra --- University of Gour Banga, IndiaIn this paper we introduce and study the local version of the Menger property, namely locally Menger property (or, locally Menger space). We explore some preservation like properties in this space. We also discuss certain situations where this local property... -
Some further remarks on characterized subgroups generated by modular simple density
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ayan Ghosh --- Jadavpur University, IndiaIn this short note we have constructed an uncountable tower of characterized subgroups using the notion of modular simple density [8] which subsequently gives the solution of Problem 2.15 [7] in a more general setting. -
On the categorical behaviour of locales and D-localic maps
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Igor Arrieta --- University of Coimbra, Portugal Javier Gutiérrez García --- University of the Basque Country UPV/EHU, SpainIt was shown by Banaschewski and Pultr that the classical adjunction between Top and Loc restricts to an adjunction between the category Top D of TD -spaces and their continuous maps, and the category Loc D of all locales and... -
Set-valued solutions of an equation of Jensen type
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Alina Ramona Baias --- Technical University of Cluj-Napoca, Romania Dorian Popa --- Technical University of Cluj-Napoca, Romania Michael Th. Rassias --- Institute of Mathematics, University of Zurich, SwitzerlandIn this paper we provide a characterization theorem for set-valued solutions of the functional equation for the case of compact, convex valued maps. We prove that every solution of the functional equation is the sum of an additive single-valued function... -
Therapeutic tool or a hindrance? A phenomenological investigation into the experiences of countertransference in the treatment of sexually abused children
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Tshepo Tlali --- University of Johannesburg,Since its inception in the 1900s, the concept of countertransference has been mired in controversy. Psychoanalytic literature is divided on its utility, significance and its clinical value in psychotherapy. While some psychotherapists have advocated for the importance of therapists’ expertise... -
Componentwise localization of solutions to systems of operator inclusions via Harnack type inequalities
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Radu Precup --- Institute of Advanced Studies in Science and Technology, Babeş -Bolyai University & Tiberiu Popoviciu Institute of Numerical Analysis, Romania Jorge Rodríguez-López --- CITMAga, Universidade de Santiago de Compostela, SpainWe establish compression-expansion type fixed point theorems for systems of operator inclusions with decomposable multivalued maps. The approach is vectorial allowing to localize individually the components of solutions and to obtain multiple solutions with multiplicity not necessarily concerned with all... -
Biological and life-history parameters for Labeo rosae Steindachner, 1894 and Oreochromis mossambicus (Peters, 1852) from Flag Boshielo Dam, Olifants River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HA Hlungwani --- University of Limpopo, South Africa SM Marr --- University of Limpopo, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa JR Sara --- University of Limpopo, South AfricaInland fisheries contribute towards food security for rural communities living close to large aquatic systems. However, sustainable inland fisheries rely on accurate biological information for the target species at the proposed fishery location. In this study, the biological information for... -
Dissipation of environmental DDT and its metabolites in selected rivers of south-western Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JK Nyaundi --- Kenya Marine and Fisheries Research Institute, Kenya SK Omasaki --- Kisii University, Kenya JM Babu --- Kenya Marine and Fisheries Research Institute, Kenya NM Mwirigi --- Kenya Marine and Fisheries Research Institute, Kenya R Omondi --- Kisii University, Kenya GA Mwayulj --- Great Lakes University of Kisumu, Kenya S Bassa --- National Fisheries Resources Research Institute (NaFIRRI), UgandaRivers are the main source of domestic and industrial water supplies in Kenya. In this study, water sampling was done at eight upstream sites in the Kuja River catchment, Kenya, between October 2016 and April 2017, specifically to test for... -
Life-history traits in two invasive species of tilapias in Morocco
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: H Ainou --- Mohammed V University, Morocco J Panfili --- IRD, MARBEC (Institut français de recherche pour l'exploitation de la mer, Centre National de la Recherche Scientifique, Institut de Recherche pour le Développement), Université de Montpellier, France A Pariselle --- Mohammed V University, Morocco M Labonne --- IRD, MARBEC (Institut français de recherche pour l'exploitation de la mer, Centre National de la Recherche Scientifique, Institut de Recherche pour le Développement), Université de Montpellier, France H Louizi --- Mohammed V University, Morocco A Benhoussa --- Mohammed V University, Morocco O Berrada Rkhami --- Mohammed V University, Morocco JF Agnèse --- UMR ISEM (Institut de Recherche pour le Développement, Centre National de la Recherche Scientifique, Ecole Pratique de Hautes Etudes), Université de Montpellier, FranceLife-history traits (LHT) of Oreochromis niloticus in the Sidi Mohamed Ben Abdellah reservoir (BA reservoir) and Oreochromis aureus in the Nador Channel were studied and compared with those of other populations in the world. Specimens were collected between June 2018... -
Status of diversity, abundance and seasonal variations of gill net catches of cichlids in Lake Bosumtwi, Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Asase --- University of Ghana, Ghana TL Lauridsen --- Aarhus University, Denmark PO Sanful --- University of Energy and Natural Resources, Ghana EEK Quansah --- University of Ghana, Ghana FKE Nunoo --- University of Ghana, GhanaThe cichlids in Lake Bosumtwi are under increasing pressure with a recent build-up in local fishing pressure. This study was conducted to assess the status and seasonal catch rates of fish species using gillnets over a two-year period. Four species... -
Sources of agricultural extension information and farmers’ willingness to pay for the information: Evidence from small-scale pineapple farmers in south-eastern Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: S. A. Manteaw --- CSIR – Institute for Scientific & Technological Information (CSIR-INSTI), Ghana B. Y. Folitse --- CSIR – Institute for Scientific & Technological Information (CSIR-INSTI), Ghana S. Mahama --- Council for Scientific and Industrial Research (CSIR), Ghana E. Wahaga --- CSIR-Food Research Institute (CSIR-FRI), GhanaThis paper examines sources, preferred format and language of agricultural extension information and the willingness of pineapple farmers to pay for the information. It is based on analysis of data collected using the structured interview schedule method administered on 132... -
Factors associated with patients defaulting on HIV treatment at Helen Joseph Hospital, Gauteng province, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Paul Potsane --- University of Johannesburg, South AfricaBackground: South Africa’s government has made significant improvements in expanding access to antiretroviral (ARV) treatment. A rate of adherence of 95% to 100% is necessary to achieve the intended outcomes of antiretroviral treatment. However, antiretroviral treatment adherence remains a significant... -
HIV-sensitive social protection: an assessment of east and southern Africa’s social protection policies and programmes
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Zitha Mokomane --- University of Pretoria, South Africa Nonhlanhla Xaba --- , South Africa Kai Roehm --- , South Africa Mutinta Hambayi --- , Kenya Manaan Mumma --- , Kenya Giovanni Giordana --- , Kenya Simphiwe Mabhele --- , South Africa Christian Mouala --- ,Despite notable political and financial commitment to fight the HIV epidemic, east and southern Africa (ESA) remains the world regions most affected. Given increasing calls for the implementation of HIV-sensitive social protection programmes to address the multiple individual, community and... -
Perturbations with nonpositive Lyapunov exponents
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Luis Barreira --- Instituto Superior Técnico, Universidade de Lisboa, Portugal Claudia Valls --- Instituto Superior Técnico, Universidade de Lisboa, PortugalThe notion of uniform hyperbolicity is equivalent to various admissibility properties. For example, one such property is expressed in terms of the existence of bounded solutions for any bounded perturbation of the dynamics. Our main objective is to describe a... -
The existence and uniqueness result of entropy solutions for a p(·)-Laplace operator problem in weighted Sobolev spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jiabin Zuo --- Guangzhou University, China Abdelali Sabri --- Hassan 1er University, MoroccoThe paper is concerned with the existence and uniqueness result of entropy solutions for a degenerate elliptic p(·)-Laplacian problem by using the regularization approach and theory of weighted Sobolev spaces with variable exponents. -
The complexity of a numerical semigroup
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: J.I. García-García --- Universidad de Cádiz, Spain M.A. Moreno-Frías --- Universidad de Cádiz, Spain J.C. Rosales --- Universidad de Granada, Spain A. Vigneron-Tenorio --- Universidad de Cádiz, SpainLet S and Δ be numerical semigroups. A numerical semigroup S is an I(Δ)-semigroup if S \ {0} is an ideal of Δ. We denote by S is an I(Δ)-semigroup}, and we say that Δ is an ideal extension... -
An inverse source problem for a nonlinear pseudoparabolic equation with p-Laplacian diffusion and damping term
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Khonatbek Khompysh --- Al-Farabi Kazakh National University, Kazakhstan Aidos Ganizhanuly Shakir --- Al-Farabi Kazakh National University, KazakhstanIn this work, we study the unique solvability of the inverse problem that consists of determining a weak solution u(x, t) to the nonlinear pseudoparabolic equation with p−Laplacian and damping term -
On finite Sylow tower and σ-tower groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jinzhuan Cai --- Hainan University, P.R. China Inna N. Safonova --- Belarusian State University, Belarus Alexander N. Skiba --- Francisk Skorina Gomel State University, Belarus Zhigang Wang --- Hainan University,In this paper, G is a finite group and σ a partition of the set of all primes ℙ, that is, σ = {σ i | i ∈ I}, where ℙ = ⋃ i∈I σ i and σ i ∩... -
A sufficient condition for planar graphs to be DP-4-colorable
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ziwen Huang --- Yichun University, China Jianqing Ma --- Wuhan University of Science and Technology, China Xiaoxia Zhang --- Xinyang Normal University, ChinaIn 2017, Dvořák and Postle introduced DP-coloring (known as correspondence coloring) as a generalization of list coloring. Recently, a lot of attention has been put on sufficient conditions for planar graphs to be DP-4-colorable. Liu et al. [17] proved that... -
Anuran diversity in a West African Valley
Item type: Journal Article • Journal: African Zoology • Authors: Houénafa Chrysostome Aimé Gansa --- Unit of Aquaculture Research and Fisheries Management (URAGeP), Laboratory of Fisheries and Animal Sciences (LaSAH), National University of Agriculture (UNA), Republic of Benin Hyppolite Agadjihouèdé --- University of Abomey-Calavi, Republic of Benin Mahugnon Benjamin Hounkanrin --- Unit of Aquaculture Research and Fisheries Management (URAGeP), Laboratory of Fisheries and Animal Sciences (LaSAH), National University of Agriculture (UNA), Republic of BeninAnurans are subject to strong anthropic pressures in Benin, as in most of the West African countries, due to their socio-economic and environmental importance. To protect these organisms and to gather basic knowledge, an anuran biodiversity study was conducted in... -
Father–child relationship and children’s peer competence: Mediated by children’s emotional regulation and environmental adaptation
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Wenxiao Cui --- Shaoxing University, China Ruiqian Li --- Shaoxing University, China Xiao Yang --- Shaoxing University, China Xia Wu --- Shaoxing University, ChinaThis study aimed to explore father–child relationships and young children’s peer competence, as mediated by child emotional regulation and environmental adaptation. The children’s fathers and teachers completed peer competence, child emotional regulation and environmental adaptation measures on 216 Chinese children... -
Assessment of retrained public service employees for effective performance: a professional development myth
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Emmanuel Selemani Shindika --- President’s Office, Public Service Management, Tanzania Public Service College, Tanzania Priviledge Cheteni --- University of Fort Hare, South AfricaThe public sector necessitates the development of public service managers’ competencies. However, this need has received far too little attention, particularly in terms of stakeholder management and service delivery. The case study method was used to interview seven public managers... -
Effect of land use/land cover changes on water quality in the Upper Athi River sub-catchment in Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Margaret Waturu --- The Technical University of Kenya, Kenya Lewis Sitoki --- The Technical University of Kenya, Kenya Joseph Lalah --- The Technical University of Kenya, Kenya Stanley Chasia --- The Technical University of Kenya, Kenya Evance Mbao --- The Technical University of Kenya, KenyaThe unprecedented pollution of Athi River has negatively impacted the downstream communities who depend on the river's waters. Moreover, the Upper Athi River Catchment has recently experienced an increase in human population coupled with rapid industrialisation, which has led to... -
Multiplicity of positive solution for Schrödinger-Poisson system with p-Laplacian
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Weiqiang Zhang --- Lanzhou University, People’s Republic of China Peihao Zhao --- Lanzhou University, People’s Republic of ChinaIn this paper, we consider the positive solutions for a Schrödinger-Poisson system containing p-Laplacian and Poisson equation. With a local condition on the potential, by using penalization method, Nehari manifold and Ljusternik-Schnirelmann category theory, the multiplicity and concentration of solutions... -
The (E, E)-approximation property for Banach spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ju Myung Kim --- Sejong University, Korea Bentuo Zheng --- The University of Memphis, USAFor a given Banach space E with an 1-unconditional basis, we introduce the (E, E)-approximation property ((E, E)-AP) which is a natural generalization of the classical approximation property (AP) and the (p, p)-AP. It is shown that the AP always... -
A note on J -spaces and relatively connected subsets
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Simo S. Mthethwa --- University of KwaZulu-Natal, South Africa Ali Taherifar --- Yasouj University, IranIn this note we present an investigation of J -spaces and other types of spaces related to J -spaces. We characterise these spaces using the notion of relatively connected subsets. For a completely regular J -space X, we give a... -
On the eigenvalues of Laplacian ABC-matrix of graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bilal Ahmad Rather --- United Arab Emirates University, UAE Hilal A. Ganie --- , India Xueliang Li --- Nankai University, ChinaFor a simple graph G, the ABC-index is a degree based topological index and is defined as -
Effects of Acacia melanoxylon, an alien tree species to South Africa, on Afrotemperate forest tree sapling composition
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tineke Kraaij --- Nelson Mandela University, South Africa Johan A Baard --- , South Africa B Adriaan Grobler --- Nelson Mandela University, South Africa Bayleigh Miles --- Nelson Mandela University, South AfricaThe alien tree Acacia melanoxylon (R.Br.) occurs extensively in the Southern Cape Afrotemperate Forest (South Africa). Concerns exist about its potential negative effects on indigenous tree sapling communities, ultimately with implications for forest composition and structure. We investigated whether Acacia... -
Spatial use of non-breeding sites by adult GPS-tracked Ospreys Pandion haliaetus from Germany
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Bernd-Ulrich Meyburg --- , Germany Daniel Holte --- , GermanyRecent analyses of telemetry data on Ospreys Pandion haliaetus predominantly address migratory movements, whereas studies focusing on spatial use are rare, especially concerning the African non-breeding areas. We analysed GPS telemetry data of 15 adult Ospreys breeding in northeast Germany,... -
Examining swap butterfly risk premia in South Africa
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Sanveer Hariparsad --- University of Pretoria, South Africa Eben Maré --- University of Pretoria, South AfricaThis paper studies a long butterfly strategy (which is immune to parallel curve shifts but exposed to non-parallel curve shifts) on the South African interest rate swap curve. Ten swap butterfly risk factors are identified using monthly South African swap... -
Examining the continued intention of using the Ugunduzi app in farmer-led research of agro-ecological practices among smallholder farmers in selected areas, Tanzania
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Luambano Lawlence Kihoma --- Sokoine University of Agriculture, Morogoro, Tanzania Ayubu J. Churi --- Directorate of Information and Communication Technologies, Sokoine University of Agriculture, Tanzania Camilius A. Sanga --- Directorate of Information and Communication Technologies, Sokoine University of Agriculture, Tanzania Eugenio Tisselli --- Institute of Integrative Biology, Eidgenossische Technische Hochschule, SwitzerlandFarmer-led research of agro-ecological practices could support smallholder farmers in identifying the best-fit practices to improve crop production. A smartphone based app named Ugunduzi was developed purposefully to support farmers in their research activities. The purpose of this study was... -
Portrait of an ethnography during pandemic times: Bagamoyo remote reconstruction and the (un)Freire of literacy policies in Mozambique
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Xénia de Carvalho --- University Institute of Lisbon, PortugalSince 2019, I have been engaged in remote ethnography about the reconstruction of the beginning of the language and literacy policies developed by the Frelimo School in Bagamoyo (1970–1975), Tanzania. I entered the field based on previous ethnographic fieldwork in... -
Ethnography, calamities and war: Mozambique 2000
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Fernando Florêncio --- University of Coimbra, PortugalIn this article I draw on personal experience to discuss the ways of doing ethnography in a context of crisis. In February 2000, when I started fieldwork for my PhD thesis in the central region of Mozambique, the country was... -
Teacher support and student engagement in mathematics: The chain mediating role of academic self-efficacy and achievement goal orientation
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yanfei Yang --- Universiti Pendidikan Sultan Idris, Malaysia Guangzheng Li --- Jiangsu Normal University, China Fenfen Song --- , China Yuan Yuan --- Universiti Pendidikan Sultan Idris, MalaysiaThis explored how teacher support impacted student engagement in mathematics. A total of 632 students in Grades 7 to 9 from junior middle schools in China were participants (females = 54.27%, mean age = 13.97, SD = 0.88). They completed... -
Beauty and materiality: Subjective social class mediation of self-perceived physical attractiveness and materialism in Chinese college students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Baoyan Yang --- Northwest Normal University, China Xiaoyue Zhao --- Northwest Normal University, China Mengmeng Zhu --- Northwest Normal University, China Yiting Wang --- Northwest Normal University, China Qiaoqiao Du --- Northwest Normal University, ChinaThis study examines the relationship between self-perceived physical attractiveness and materialism, and the mediating role of subjective social class in that relationship. Participants were 375 Chinese college students (female = 79%; sophomore = 29%; mean age = 21.99; SD =... -
Low hypoxia tolerance in larvae of the sardine Sardinops sagax and anchovy Engraulis encrasicolus may limit their stock recovery in the northern Benguela upwelling system
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Kunzmann --- Leibniz Centre for Tropical Marine Research (ZMT), Germany RM Imam --- Leibniz Centre for Tropical Marine Research (ZMT), Germany SJ Geist --- Leibniz Centre for Tropical Marine Research (ZMT), GermanyPhysiological traits of five key fish species (Cape hake Merluccius spp., pelagic goby Sufflogobius bibarbatus, Cape horse mackerel Trachurus capensis, European anchovy Engraulis encrasicolus and sardine Sardinops sagax) from the northern Benguela upwelling system (NBUS) were compared during their larval... -
Acoustic telemetry reveals the drivers behind estuary–sea connectivity of an important estuarine-dependent fishery species, Pomadasys commersonnii, in the Breede Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BA Ziko --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa TS Murray --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa TF Næsje --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa JD Filmalter --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa PD Cowley --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaThe spotted grunter Pomadasys commersonnii is an important estuarine-dependent fishery species known to spawn along the east coast (KwaZulu-Natal Province) of South Africa. However, recent evidence suggests that this species also spawns along the southwest coast in the Western Cape... -
Supported approach spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: E. Colebunders --- Vrije Universiteit Brussel, België R. Lowen --- Universiteit Antwerpen, BelgiëIn this paper we work in the category of approach spaces with contractions [14], the objects of which are sets endowed with a numerical distance between sets and points. Approach spaces are to be considered a simultaneous generalization of both... -
Topogenous orders and related families of morphisms
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: David Holgate --- University of the Western Cape, South Africa Minani Iragi --- Brno University of Technology, Czech RepublicIn a category with a proper ()-factorization system, we study the notions of strict, co-strict, initial and final morphisms with respect to a topogenous order. Besides showing that they allow simultaneous study of four classes of morphisms obtained separately with... -
A characterization of derivations of JSL algebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Lin Chen --- Changshu Institute of Technology, P.R. China Jun Li --- Changshu Institute of Technology, P.R. ChinaChina Zijie Qin --- Changshu Institute of Technology, P.R. ChinaChinaLet be a -subspace lattice algebra on a Banach space X and Inv() be the set of all invertible elements of . Suppose that δ : → is a linear mapping satisfying δ(A) ◦ A −1 + A ◦ δ(A... -
On mixed metric dimension in subdivision, middle, and total graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ali Ghalavand --- Ferdowsi University of Mashhad, Iran Sandi Klavžar --- University of Ljubljana, Slovenia Mostafa Tavakoli --- Ferdowsi University of Mashhad, Iran Ismael G. Yero --- Universidad de Cádiz, SpainLet G be a graph and let S(G), M(G), and T(G) be the subdivision, the middle, and the total graph of G, respectively. Let dim(G), edim(G), and mdim(G) be the metric dimension, the edge metric dimension, and the mixed metric... -
The significance of the contributions of congruences to the theory of connectednesses and disconnectednesses for topological spaces and graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Stefan Veldsman --- Nelson Mandela University, South AfricaThis is a survey of some of the consequences of the recently introduced congruences on the theory of connectednesses (radical classes) and disconnectednesses (semisimple classes) of graphs and topological spaces. In particular, it is shown that the connectednesses and disconnectednesses... -
On the joint universality for Dirichlet series connected to periodic zeta-functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Antanas Laurinčikas --- Vilnius University, LithuaniaIn the paper, we consider a collection of absolutely convergent Dirichlet series which in the mean are close to periodic and periodic Hurwitz zeta-functions, and prove that the shifts of mentioned Dirichlet series approximate simultaneously a wide class of analytic... -
Three Fibonacci-chain aperiodic algebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Raymond Aschheim --- Quantum Gravity Research, USA David Chester --- Quantum Gravity Research, USA Daniele Corradetti --- Universidade do Algarve, Portugal Klee Irwin --- Quantum Gravity Research, USAAperiodic algebras are infinite dimensional algebras with generators corresponding to an element of the aperiodic set. These algebras proved to be an useful tool in studying elementary excitations that can propagate in multilayered structures and in the construction of some... -
Community involvement in the mass capture of Red-billed Queleas Quelea quelea adjacent to protected areas: the case of Chemba District, Dodoma, Tanzania
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Naza Emanuel Mmbaga --- The University of Dodoma, Tanzania Richard John Mongi --- The University of Dodoma, Tanzania Mhuji Bukheti Kilonzo --- The University of Dodoma, Tanzania Leonard Kamanga Katalambula --- The University of Dodoma, TanzaniaThe mass capture and utilisation of Red-billed Queleas Quelea quelea as a source of food is practiced in different African countries. The current study sought information on the trapping methods and techniques used by local communities in Chemba District, Tanzania,... -
The effects of habitat loss and fragmentation on the relative abundance and conservation of Ludwig’s Bustard Neotis ludwigii in South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Steven W Evans --- North-West University, South AfricaLudwig’s Bustard Neotis ludwigii is near-endemic to the semi-arid shrublands of southwestern southern Africa and is listed as Endangered. The primary threat to this species is collisions with overhead powerlines; however, loss and fragmentation of its habitat may contribute to... -
Understanding the uptake of HIV testing among women in Liberia: the role of female genital mutilation/cutting
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Daniel Amoak --- Western University, Canada Nancy Osei-Kye --- Western University, Canada Florence W. Anfaara --- Western University, Canada Yujiro Sano --- Nipissing University, Canada Roger Antabe --- University of Toronto Scarborough, Canada Isaac Luginaah --- Western University, CanadaPast studies show that the processes of female genital mutilation/cutting (FGM/C) on women can increase their susceptibility to HIV infection. This is because genital tears or ruptures, scars and wounds from FGM/C may expose survivors to heightened risks of contracting... -
‘Yo Dumbfucks!’: Problematising “Transgressive” White Humour and the Use of Blackface in the Artworks of South African Visual Artist Anton Kannemeyer
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Sharlene Khan --- University of the Witwatersrand, South AfricaSince the early 1990s, blackface has seen a resurgence in South Africa. In 2010, Pappa in Afrika, the artwork of White Afrikaner artist Anton Kannemeyer elicited public criticism. Interrogating Kannemeyer’s Pappa in Afrika, this paper questions assumptions of blackface’s parodic... -
Effect of group cognitive behavioural therapy on self-efficacy and anthropometric indices among overweight and obese postpartum women
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Arezo Jamshidi --- Ahvaz Jundishapur University of Medical Sciences, Iran Parvin Abedi --- Ahvaz Jundishapur University of Medical Sciences, Iran Najmeh Hamid --- Shahid Chamran University of Ahvaz, Iran Mohammadhossein Haghighizadeh --- School of Health, Iran -
Perioperative nutritional management of a Whipple’s patient
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Safiyah Hasson --- Groote Schuur Hospital, South AfricaPancreatic cancers comprise one of the most difficult cancers to diagnose and one of the leading causes of cancer-related deaths in the world.1,2 A 70-year-old male presenting with a head of pancreas malignant mass was referred for nutritional optimisation as... -
A new record of a chick falling from a nest in Limpopo province, South Africa, adds to the known causes of Hooded Vulture Necrosyrtes monachus mortality
Item type: Journal Article • Journal: African Zoology • Authors: --- , South Africa --- , South Africa --- University Thomas Sankara, Burkina Faso --- , South Africa --- , United StatesFor all species, causes of mortality, both anthropogenic and natural, should be recorded. In Critically Endangered species these records are even more important, owing to their potential impacts on small and/or declining populations. Here we present a case of natural... -
Spatial variations in STIs among women enrolled in HIV prevention clinical trials in Durban, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Reshmi Dassaye --- South African Medical Research Council, South Africa Handan Wand --- Kirby Institute, University of New South Wales, Australia Tarylee Reddy --- South African Medical Research Council, South Africa Frank Tanser --- University of Lincoln, Lincoln Institute for Health, UK Benn Sartorius --- London School of Hygiene & Tropical Medicine, UK Natashia Morris --- South African Medical Research Council, South Africa Gita Ramjee --- South African Medical Research Council, South AfricaSouth Africa is faced with a high HIV and STI prevalence and incidence, respectively, with pockets of high burden areas driving these diseases. Localised monitoring of the HIV epidemic and STI endemic would enable more effective targeted prevention strategies. We... -
Marine macroalgae of the Agulhas Marine Province of South Africa: biodiversity, exploitation and potential for aquaculture
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JJ Bolton --- University of Cape Town, South Africa CD McQuaid --- Rhodes University, South AfricaThe Agulhas Marine Province (AMP) extends along most of the south coast of South Africa, from Cape Agulhas to the vicinity of the Mbashe River mouth in the Eastern Cape Province, and has its own distinctive warm-temperate seaweed flora, with... -
Geographical and seasonal patterns in the diet of Cape fur seals Arctocephalus pusillus pusillus in Namibia, based on extensive scat analyses
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DN Mwaala --- University of Namibia, Namibia MR Wilhelm --- University of Namibia, Namibia SP Kirkman --- Fisheries and the Environment (DFFE): Branch Oceans and Coasts, South Africa J-P Roux --- Ministry of Fisheries and Marine Resources, NamibiaNamibia's population of Cape fur seals Arctocephalus pusillus pusillus is a major constituent of top predator biomass in the northern Benguela upwelling system. Understanding their diet is key to comprehending their role in the ecosystem and potential drivers of recent... -
Grazing capacity change on a small Mediterranean-type South African offshore island following the control of invasive alien European rabbits (Oryctolagus cuniculus)
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: --- University of KwaZulu-Natal, South Africa --- University of KwaZulu-Natal, South Africa --- Stellenbosch University, South AfricaInvasive alien species (IAS) are one of the most important factors driving extinction rates worldwide. Among the IAS, the impacts of introduced mammals on native biodiversity are most severe, with the European rabbit (Oryctolagus cuniculus) being the most problematic. Globally,... -
Quantifying the effect of chemical bush control of
Senegalia mellifera on vegetation production in the Eastern Kalahari Bushveld, South AfricaItem type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: --- , South Africa --- , South Africa --- North-West University, South AfricaBush encroachment is the invasion of whole landscapes by indigenous and alien woody species. An imbalance in the ratio of grasses to bushes is a consequence of bush encroachment due to competition for moisture, nutrients and sunlight. This imbalance results... -
A demonstration of the value of recapture data for informing moult phenology models for avian species with imperfect moult data
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Philipp H Boersch-Supan --- , United Kingdom Alan Tristram Kenneth Lee --- University of Cape Town, South Africa Hans-Dieter Oschadleus --- University of KwaZulu-Natal, South AfricaThe Underhill–Zucchini model has revolutionised the study of moult in the context of birds’ annual cycles, but, as for all statistical models, inferences are vulnerable to violations of model assumptions. In particular, the standard Underhill–Zucchini models for moult phenology are... -
Primary moult in the annual cycle of adult African Oystercatchers Haematopus moquini
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Taylyn C Bate --- University of Cape Town, South Africa Peter G Ryan --- University of Cape Town, South Africa Les G Underhill --- University of Cape Town, South AfricaAfrican Oystercatchers Haematopus moquini are sedentary, intertidal foraging birds, range-restricted to Namibia and South Africa. Their annual cycle has two components: breeding and moult. The Underhill–Zucchini model estimated a primary moult duration of 154 days, and mean start and completion... -
Influences on decision-making about disclosure of HIV status by adolescents and young adults living with HIV in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Thandeka Smith --- Africa Health Research Institute, South Africa Janet Seeley --- Africa Health Research Institute, South Africa Maryam Shahmanesh --- Africa Health Research Institute, South Africa Christina Psaros --- , USA Chiedza Munikwa --- , South Africa Nothando Ngwenya --- Africa Health Research Institute, South AfricaBackground: Adolescents and young adults living with HIV (AYA) are faced with the challenge of living with a life-long chronic condition. We investigated the influences on the decisions by AYA to disclose their HIV status to family, intimate partners and... -
Equity of the HIV epidemic response in 13 African countries
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gary Gaumer --- Brandeis University, USA V. S. Senthil Kumar --- Brandeis University, USA William Crown --- Brandeis University, USA Monica Jordan --- Brandeis University, USA Clare Hurley --- Brandeis University, USA Maya Subramanian --- Brandeis University, USA A. K. Nandakumar --- Brandeis University, USAFor over 25 years, new programs to attempt to stem the HIV epidemic have been developed in Africa by country governments as well as external donors. These programs and activities have built and operated facilities, trained clinicians, financed drugs and... -
Cessation of South African residency: A critical analysis of juridical double taxation on United Kingdom immovable property held by natural persons
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Elizabeth Fick --- Stellenbosch University, South Africa Maryke Wiesener --- Stellenbosch University, South AfricaWhen a natural person ceases to be resident, there is a deemed disposal of worldwide assets, and a capital gain must be calculated. Taxation levied because of a change in residence is referred to as an exit tax. In this... -
A systematic review of remote sensing and machine learning approaches for accurate carbon storage estimation in natural forests
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Collins Matiza --- University of KwaZulu-Natal, South Africa Onisimo Mutanga --- University of KwaZulu-Natal, South Africa Kabir Peerbhay --- University of KwaZulu-Natal, South Africa John Odindi --- University of KwaZulu-Natal, South Africa Romano Lottering --- University of KwaZulu-Natal, South AfricaThe assessment of carbon storage in natural forests is paramount in the ongoing efforts against climate change. While traditional field-based methods for quantifying carbon storage pose challenges, recent advancements in remote sensing and machine learning offer efficient and innovative alternatives... -
Secondary vegetation provides a reservoir of non-timber forest products and agroforestry service options for forestry plantation systems, Maputaland, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: AP Starke --- University of Pretoria, South Africa CJ Geldenhuys --- University of Pretoria, South Africa TG O’Connor --- University of the Witwatersrand, South Africa CS Everson --- University of KwaZulu-Natal, South AfricaTree species providing non-timber forest products (NTFPs) have the potential to enhance the socio-economic value of forestry plantation systems and mitigate biodiversity loss associated with production landscapes in Southern Africa. This can be accomplished by integrating NTFP agroforestry systems with... -
Call to prayer: the sound of the adhan, heritage and shifting urban identity in Cape Town
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Duane Jethro --- University of Cape Town, South Africa Mahoati Arthur Lehloenya --- University of Johannesburg, South AfricaArchitectural analyses of heritage and the city largely focus on the visual and physical properties of buildings and sites. Traces of intangible, sensuous heritage such as sounds, smells and community-lived experience are often left out. This article critiques this tradition... -
Disrupting self-censorship, inventing public space through interactive performances in Luanda, Angola
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Chloé Buire --- , FranceThis article analyses a series of cultural events organised in Luanda, Angola, in 2021–2022 by an artistic collective called the Vosi Yetu Project. These open-mike sessions promoting freedom of expression are analysed as carnivalesque moments redistributing the norms of who... -
“Sing and make music to the Lord”: cultural difference in South Africa’s urban religious soundscapes
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Douglas Bafford --- , United StatesScholars of contemporary Christianity have long noted the importance of sacred music in constructing faith communities and distinguishing religious actors from one another. Drawing on historical and ethnographic evidence gathered over 16 months in Johannesburg, South Africa, I examine the... -
A meeting with gardenia: an ethnographic exploration of multispecies relationships and space construction in Kirstenbosch National Botanical Garden
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: James Granelli --- University of Cape Town, South AfricaIn an age of climate and ecological breakdown, questions of how we relate to the natural world and the more-than-human beings around us are more important than ever. This ethnography seeks to bring these questions to the Kirstenbosch National Botanical... -
Migrant arrival infrastructures and their impact on Zimbabweans’ mobility and integration in South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Shingirai Nyakabawu --- University of the Western Cape, South AfricaThis study argues that arrival infrastructures play a crucial role in shaping the mobility and integration of Zimbabwean migrants in South Africa. By examining the experiences of migrants with access to these infrastructures and those without, the research explores the... -
The interconnection between the global and the local: case study of the indigenous Baka community of Nomedjoh, Cameroon
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Richard Atimniraye Nyelade --- University of Ottawa, CanadaThe impact of globalisation on local communities is a widely debated topic in sociology and anthropology. This article explores the dynamics and statics of local communities in the context of globalisation using the concepts of deterritorialisation and imagined community. The... -
Validation of the generic name Prescottiella gen. nov. (Desmidiales, Zygnematophyceae): a rare African desmid
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Sanet Janse van Vuuren --- North-West University, South Africa Anatoliy Levanets --- North-West University, South AfricaPrescottiella sudanensis is a rare, asymmetrical desmid currently known from only a few countries in equatorial Africa. During the present study, P. sudanensis cells were found in water samples from Vogel Pan located in the far north-eastern side of Namibia,... -
Analysis of freshwater diatom deformities in the Karoo, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Holmes --- Nelson Mandela University, South Africa EE Campbell --- Nelson Mandela University, South Africa M de Wit --- Africa Earth Observatory Network (AEON) – Earth Stewardship Science Research Institute (ESSRI) Nelson Mandela University, South Africa JC Taylor --- North-West University, South AfricaSeveral studies regarding the effects of excess nutrients and metals as possible causes of deformities found in diatom cells have been conducted in Europe, North America and Australia. This is the first study in South Africa which catalogued and analysed... -
Innovation systems, value chains and industrial clusters in developing economies: Case of Jalandhar’s sports goods industry
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Swati Mehta --- Guru Nanak Dev University, IndiaThe paper explores the relationship between innovation systems (IS) and participation in value chains (VCs) to understand the challenges concerning upgrading of an industrial cluster in a developing country. It is argued that the inter-linkages of various actors, organizations and... -
Farmers’ choices and factors driving adoption of climate change adaptation strategies in saline coastal area of Bangladesh
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mst. Esmat Ara Begum --- Bangladesh Agricultural Research Institute, Bangladesh Md. Abdur Rashid --- Bangladesh Agricultural Research Institute, Bangladesh Mohammad Ismail Hossain --- Bangladesh Agricultural University, Bangladesh Md. Anower Hossain --- Bangladesh Agricultural Research Institute, Bangladesh Md. Harunor Rashid --- Bangladesh Agricultural Research Institute, Bangladesh Mustafa Kamal Shahadat --- Bangladesh Agricultural Research Institute, Bangladesh Mohammed Mainuddin --- Water Security Program, CSIRO Environment, AustraliaGrowing climate change adaptation issues are driving the demand for efficient solutions in the agriculture sector, which will improve farmers’ livelihoods and economic situations. This study examined the perceptions of major climate risks and factors driving adoption of climate adaptation... -
Nitrogen fertiliser demand of canola is low when produced in conservation agriculture systems in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Izané Riana Crous --- Stellenbosch University, South Africa Johan Labuschagne --- Stellenbosch University, South Africa Pieter Andreas Swanepoel --- Stellenbosch University, South AfricaCurrent fertiliser guidelines for nitrogen (N) application for canola under conservation agriculture (CA) in South Africa, may result in over-fertilisation. This study aimed to evaluate the effects of N rates and foliar applied N on biomass, seed and oil yield... -
Growth, vegetative rescue and vegetative propagation in Eucalyptus species and hybrids
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Patrícia Fukushima de Souza --- Universidade do Estado de Santa Catarina Centro de Ciências Agroveterinárias, Brazil Marcio Carlos Navroski --- Universidade do Estado de Santa Catarina Centro de Ciências Agroveterinárias, Brazil Mariane Oliveira Pereira --- Universidade do Estado de Santa Catarina Centro de Ciências Agroveterinárias, Brazil Marcos Felipe Nicoletti --- Universidade do Estado de Santa Catarina Centro de Ciências Agroveterinárias, Brazil Ramon Silveira de Andrade --- Universidade do Estado de Santa Catarina Centro de Ciências Agroveterinárias, BrazilThe objective of the study was the evaluation of survival and productivity indicators in different species/hybrids of Eucalyptus in the adult stage, as well as the vegetative rescue of adult trees and cuttings, testing for species/hybrids, concentration of growth regulator... -
Solutions of an anisotropic elliptic problem involving nonlinear terms
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Razani --- Imam Khomeini International University, Iran T. Soltani --- Imam Khomeini International University, IranUsing variational methods, the existence and multiplicity of weak solutions for the following Neumann anisotropic problem -
Extension of semi-Lipschitz maps on non-subadditive quasi-metric spaces: new tools for Artificial Intelligence
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Roger Arnau --- Instituto Universitario de Matemática Pura y Aplicada, Universitat Politècnica de València, Spain Natalia Jonard-Pérez --- Universidad Nacional Autónoma de México, México Enrique A. Sánchez Pérez --- Instituto Universitario de Matemática Pura y Aplicada, Universitat Politècnica de València, SpainThe axioms of symmetry and indiscernibility of a metric function can be eliminated and still define a topological space with good enough properties. However, among all the axioms that constitute the notion of a metric, the subadditivity or triangular inequality... -
Dynamic capability and competitive advantage of event management ventures in Kenya
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Rebecca Chelagat Cheruon --- Moi University, Kenya Jacqueline Cheptepkeny Korir --- Moi University, KenyaEvent management in the hospitality industry came into being because many corporate firms, families and friends asked hotels to organise their gatherings. For corporate firms, these events are considered training programmes, meetings, or conferences. For families, events include weddings, birthday... -
Generalized Jordan derivable mappings on
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Kaijia Luo --- Institute of Mathematics, Hangzhou Dianzi University, China Jiankui Li --- School of Mathematics, East China University of Science and Technology, China Shanshan Su --- School of Mathematics, East China University of Science and Technology, ChinaLet be a Hilbert space over the real or complex field and be the algebra of all bounded linear operators on . For arbitrary fixed points C, D, M in , we investigate the structure of linear mappings δ and... -
On a special Kapteyn series
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A.J.E.M. Janssen --- Eindhoven University of Technology, The NetherlandsWe investigate the mathematical properties of the function , ϵ ∈ [−1, 1], which is a special Kapteyn series of the first kind. Unlike various other special Kapteyn series, the function T (ϵ) does not seem to possess a closed-form... -
Stone-Weierstrass approximation revisited
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Anatoly G. Kusraev --- Southern Mathematical Institute of the Vladikavkaz Science Center of the Russian Academy of Sciences, Russia Semën S. Kutateladze --- Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, RussiaThe aim of the present article is to extend the Stone-Weierstrass theorem to functions ranging in a lattice normed space and admitting order rather than topological approximation. We proceed with the machinery of Boolean-valued transfer from lattice normed space to... -
Distribution and site fidelity of four endemic catshark species in Walker Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TL Johnson --- , South Africa JC de Bresser --- , South Africa E Cottrant --- , South Africa NJ Drobniewska --- , South Africa TG Paulet --- , South Africa LG Underhill --- University of Cape Town, South AfricaCatsharks (family Scyliorhinidae) and the recently reclassified deepwater catsharks (family Pentanchidae) are two of the largest families of elasmobranchs and include species that function as important mesopredators in almost all marine ecosystems. This study focuses on four species endemic to... -
Acoustic assessment of the biomass of aggregated chokka squid Loligo reynaudii on its inshore spawning grounds on the southeast coast of South Africa in the season closed for fishing
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: I Hampton --- , South Africa MA Soule --- , South Africa J Mwicigi --- , South AfricaRecent attempts to estimate the biomass of chokka squid Loligo reynaudii on the southeast coast of South Africa by acoustic surveys of the inshore jig-fishing area are described. Pilot surveys of aggregations, covering part of the fishing grounds, were conducted... -
Thermal tolerances of littorinid snails from temperate and subtropical South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CD McQuaid --- Rhodes University, South Africa TG Matumba --- Rhodes University, South AfricaEnvironmental temperature affects ectotherm performance and fitness because physiological performance increases up to a sublethal optimum temperature; this is not fixed, but depends on the species and individual history. We explored the influence of species identity, size and thermal history... -
Biology and ecology of the African blackspot shark Carcharhinus humani on the east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Cliff --- KwaZulu-Natal Sharks Board, South Africa NG Booyens --- School of Life Sciences, University of KwaZulu-Natal, South Africa R Daly --- Oceanographic Research Institute (ORI), South Africa GL Jordaan --- Oceanographic Research Institute (ORI), South Africa N Nkabi --- KwaZulu-Natal Sharks Board, South Africa D Parker --- Commonwealth Scientific and Industrial Research Organization, Australia BQ Mann --- Oceanographic Research Institute (ORI), South AfricaThe African blackspot shark Carcharhinus humani (until now commonly known as Human’s whaler shark) is a small-sized requiem shark (family Carcharhinidae) found in tropical coastal waters of the western Indian Ocean as far south as Port St Johns on the... -
Factors affecting smallholder farmers’ local knowledge-based adaption to build resilience in Wolaita zone, Ethiopia
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Workneh Fanta --- Wolaita Sodo University, Ethiopia Pat Gibbons --- University College Dublin (UCD), Ireland Berhanu Kuma --- Wolaita Sodo University, EthiopiaThis study aims to identify factors affecting local adaptation strategies smallholder farmers are practising to adapt multiple stresses. Primary data were collected from 400 randomly sampled households from six districts of Wolaita zone by face-to-face interviews, focus group discussions, and... -
Testing the thermal melanism hypothesis for Cape Cobras (Naja nivea) using community science photographic data
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jody M Barends --- University of Johannesburg, South Africa Kim J Scholtz --- University of the Western Cape, South AfricaAnimal colour is a highly adaptive phenotypic trait that can respond to several selection pressures, including those facilitated by variations in climate. The thermal melanism hypothesis predicts that for ectotherms, selection for darker phenotypes should be highest in cooler areas... -
A targeted survey for the Durban Dwarf Burrowing Skink Scelotes inornatus (Smith 1849) at Bluff Nature Reserve and Treasure Beach in Durban, KwaZulu-Natal, South Africa, with notes on sympatric herpetofauna
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AJ Armstrong --- Biodiversity Research & Assessment, South Africa PR Jordaan --- African Ecological Conservation Projects, South AfricaA survey for the Critically Endangered Durban Dwarf Burrowing Skink Scelotes inornatus (Smith 1849) was conducted in two protected areas in Durban, South Africa, in August and September 2021. Twelve sites, each encompassing a combination of vegetation type, elevation, slope... -
The impact of Eucalyptus plantations on herpetofaunal diversity, Maputo National Park, Mozambique
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: PR Jordaan --- Tshwane University of Technology, South Africa A Wilken --- University of Pretoria, South Africa X Combrink --- Tshwane University of Technology, South AfricaExotic afforestation has proven detrimental to biodiversity in general, however only a few studies documenting the impact of timber plantations on herpetofaunal diversity have been published within a southern African context. To determine if variations in herpetofaunal species assemblages could... -
Dynamic pathways to SMEs performance: Unraveling the influence of organizational learning capability, innovation, market dynamism and market responsiveness in an African emerging economy
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Ahmed Agyapong --- Kwame Nkrumah University of Science and Technology, Moses Acquaah --- University of North Carolina at Greensboro, Gladys E. Abiew --- Department of Secretaryship and Management Studies, Koforidua Technical University, Ghana Hubert N. Zan --- Ghana Energy Commission,This study explores the complex relationships among organizational learning capability (OLC), innovation, market dynamism, market responsiveness, and the performance of small and medium-sized enterprises (SMEs) in African emerging economies. Our research investigates the role of innovation as a mediator in... -
Therapeutic inertia: a retrospective examination of inpatient management for type 2 diabetes mellitus at a South African regional hospital during a singular hospitalisation
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: KA White --- Harry Gwala Regional Hospital, South Africa S Pillay --- King Edward VIII Hospital, South Africa -
Certain results on gradient almost η-Ricci-Bourguignon soliton
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Santu Dey --- Bidhan Chandra College, IndiaThe present research article deals with the study of almost η-Ricci-Bourguignon soliton and gradient almost η-Ricci-Bourguignon soliton on almost Kenmotsu manifolds. It is shown that if the metric of a Kenmotsu manifold M 2 n +1 admits a... -
Existence results for fractional Dirichlet problems of p-Laplacian with instantaneous and non-instantaneous impulses on time scales
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Xing Hu --- Neijiang Normal University, P.R. China Yongkun Li --- Yunnan University, People’s Republic of ChinaIn this paper, by means of a relation between Riemann-Liouville fractional derivative and Caputo fractional derivative on time scales and with the help of variational methods and critical point theory, we obtain the existence results for a class of fractional... -
Stability analysis of fully dynamic piezoelectric beams with internal fractional delay
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jianghao Hao --- Shanxi University, P.R. China Jing Yang --- Shanxi University, P.R. ChinaIn this paper, we are interested in the stability analysis of one-dimensional fully dynamic piezoelectric beam systems with internal fractional delay under different feedback controls (boundary and internal). By introducing two new equations to deal with fractional delay, equivalent new... -
Double total domination in the generalized lexicographic product of graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Abel Cabrera-Martínez --- Universidad de Córdoba, Spain Ismael Ríos Villamar --- Universidad Autónoma de Guerrero, Mexico Juan M. Rueda-Vázquez --- Universidad de Córdoba, Spain José M. Sigarreta Almira --- Universidad Autónoma de Guerrero, MexicoLet G be a graph of minimum degree at least two. A set D ⊆ V(G) is said to be a double total dominating set of G if |N (v) ∩ D| ≥ 2 for every vertex v ∈ V(G)... -
Counting Common Starlings: is Sturnus vulgaris invasive in rural South Africa?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adrian JFK Craig --- Rhodes University, South Africa Shelley Edwards --- Rhodes University, South AfricaThe numbers of Common Starlings Sturnus vulgaris and indigenous starling species, as well as a subset of other common birds, were recorded from October 2006 to January 2020 at 72 point-count sites along four routes (two urban and two rural)... -
On the extension of the Voronin universality theorem for the Riemann zeta-function
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Antanas Laurinčikas --- Institute of Mathematics, Faculty of Mathematics and Informatics, Vilnius University, LithuaniaIn the paper, we prove a general universality theorem for the Riemann zeta-function ζ (s) on approximation of a class of analytic functions by generalized shifts ζ (s + ia(τ)). Here a(τ) is a real-valued continuous increasing to +∞ function,... -
Lax pullback complements in partial morphism categories
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: S.N. Hosseini --- Mahani Mathematical Research Center, Shahid Bahonar University of Kerman, Iran L. Yeganeh --- Mahani Mathematical Research Center, Shahid Bahonar University of Kerman, IranThe goal of this article is to characterize the lax pullback complement of a given partial morphism along a total morphism, in an -partial morphism category, where is an exponentiable stable system. To achieve this, we first show that if... -
The number of distinguishing colorings of a Cartesian product graph
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Saeid Alikhani --- Yazd University, Iran Mohammad H. Shekarriz --- Yazd University, IranA vertex coloring is called distinguishing if the identity is the only automorphism that can preserve it. The distinguishing threshold θ(G) of a graph G is the minimum number of colors k required that any arbitrary k-coloring of G is... -
Of vaccines, biopower, subjects and governmentality: an ethnographic enquiry into the Zimbabwean Covid-19 vaccination drive
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Talent Moyo --- Midlands State University, ZimbabweThe article highlights the politics of the Covid-19 vaccination drive in Zimbabwe. It interrogates questions of individual agency and institutional power in the administration of the vaccine. It is framed within Foucauldian scholarship, particularly that concerning the role of biopower,... -
Species diversity and distribution-pattern determinants of African rivulines (Cyprinodontiformes: Nothobranchiidae) in rainforest streams of southern Cameroon
Item type: Journal Article • Journal: African Zoology • Authors: FD Messu Mandeng --- Higher Teacher’s Training College (ENS), University of Yaoundé I, Cameroon CF Bilong Bilong --- University of Yaoundé I, Cameroon JF Agnese --- University of Montpellier (CNRS, IRD, EPHE), FranceUnderstanding the community structure and ecology of fish populations in rainforest streams is a prerequisite for any actions towards their exploitation, management or conservation. We examined the community structure and species diversity of nothobranchiids (African rivulines) in rainforest streams of... -
Molecular characterisation and phylogeny of two nematode parasites recovered from the amphibian host Schlerophrys regularis sampled in Lagos metropolis, Nigeria
Item type: Journal Article • Journal: African Zoology • Authors: Okeagu Martin Okechukwu --- University of Lagos, Nigeria Akinsanya Bamidele --- University of Lagos, Nigeria Fadipe Ojuolape Temitope --- Federal Institute of Industrial Research, Nigeria Njoku Ifeoma Faith --- Federal Institute of Industrial Research, Nigeria Adekoya Olajide Khalid --- University of Lagos, Nigeria Akadiri Oladimeji Olalekan --- Federal Institute of Industrial Research, Nigeria Aisien Martins --- University of Benin, NigeriaResearch on amphibian parasites has been on the increase because of the noticeable decline of amphibians. Studies on these parasites have been limited to their prevalence and infection patterns, and there is still a dearth of knowledge on the phenotypic... -
On the difference graph of power graphs of finite groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jitender Kumar --- Birla Institute of Technology and Science Pilani, India Ramesh Prasad Panda --- VIT-AP University, India Parveen --- Birla Institute of Technology and Science Pilani, IndiaThe power graph of a finite group G is the simple undirected graph with vertex set G whose two vertices are adjacent if one is a power of the other. The enhanced power graph of a finite group G is... -
Status and distribution of a novel redfin lineage, Pseudobarbus sp. ‘burchelli Tradouw’ from the Cape Fold Ecoregion of South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Martine S. Jordaan --- , South Africa Stuart Barrow --- , South Africa Wilbert Kadye --- Rhodes University, South Africa Albert Chakona --- NRF-South African Institute for Aquatic Biodiversity (NRF-SAIAB), South AfricaFreshwater fish are threatened globally and in addition, knowledge of their diversity is incomplete and species richness is underestimated. Within the ichthyofauna of the Cape Fold Ecoregion of South Africa, many undescribed lineages exist and for most of these, information... -
Examining the income gap-gender inequality nexus in Africa using bi-wavelet and partial wavelet coherence analysis
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Rasaq Raimi --- Nelson Mandela University, South Africa Andrew Phiri --- Nelson Mandela University, South AfricaThe eradication of gender discrimination traditions and the reduction of income disparities are vital global objectives outlined in Sustainable Development Goals 4 and 10, particularly in African nations where gender and income gaps persist. In alignment with these goals, this... -
Exploring upbringing styles of highly resilient students in South Africa: A mixed methods study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Franco Musiello --- , South Africa Zaynab Essack --- , South Africa Alastair van Heerden --- , South AfricaParents play a critical role in supporting the development of resilience in childhood and early adolescence. Most South Africans lack basic resources, so research into and commitment to resilience is of great importance. This study investigated the styles of parenting... -
Advancing methodological diversity in critical tourism, leisure and hospitality research: a thorough analysis in the African context
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Wagnew Eshetie Tsegaw --- Bahir Dar University, EthiopiaWhile the African context provides a unique environment for critical tourism, leisure and hospitality research, it is still understudied by academia, mostly due to the small academic community and the high difficulty in obtaining data. This article explores and showcases... -
Volunteering dynamics in leisure, tourism and hospitality: developing sustainable practices for well-being and social impact
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Bertine Bargeman --- Breda University of Applied Sciences, The Netherlands Licia Calvi --- Breda University of Applied Sciences, The Netherlands Rodney Westerlaken --- NHL Stenden University of Applied Sciences, The Netherlands Geesje Duursma --- NHL Stenden University of Applied Sciences, The NetherlandsThis article explores the multifaceted landscape of volunteering in leisure, tourism and hospitality (LTH) organisations, acknowledging its fundamental role in civil society, and serves as the inception point for an in-depth research project. Volunteerism is explored in diverse forms, ranging... -
Growth and adaptability of provenances and progenies of Pinus maximinoi H.E.Moore in northern Mozambique
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Cremildo Riba Gouveia Dias --- Agricultural Research Institute of Mozambique, Mozambique Laurina Adriano Guacha --- Institute of Geography and Spatial Planning, University of Lisbon, Portugal Aires Afonso Mbanze --- Universidade Lúrio (Campus Universitário de Unango), MozambiqueThe aim of this study was to evaluate the growth and adaptability of Pinus maximinoi provenances and progenies and to estimate the genetic variation that could be exploited in feature improvement (e.g. breeding studies). Data from this study are from... -
Remote sublocales
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mbekezeli Nxumalo --- University of South Africa, South AfricaWe use the notion of a remote collection of a Tychonoff space to define a remote sublocale of any locale. Our definition is conservative, in the sense that, a subset is remote if and only if the sublocale it induces... -
Planar polynomial of the graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Behnaz Tolue --- Hakim Sabzevari University, Iran Alireza Doostabadi --- University of Zabol, Iran Sayed Masih Ayat --- University of Zabol, IranIn this paper, the planar polynomial of a graph is introduced and some of its properties are discussed. The planar polynomial of the graph G is real-rooted if and only if G is planar. This polynomial is not EE-invariant. Some... -
On A-normaloid d-tuples of operators and related questions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Najla Altwaijry --- King Saud University, Saudi Arabia Silvestru Sever Dragomir --- Victoria University, Victoria, Australia Kais Feki --- University of Sfax, TunisiLet ß A (ℍ) denote the algebra of bounded linear operators on a complex Hilbert space ℍ that admit A-adjoint operators, where A is a non-zero positive semi-definite operator on ℍ. A commuting operator tuple T = (T 1... -
Seasonal distribution of livestock in Samburu county, northern Kenya: a response to variable pasture and water in semi-arid rangelands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: GL Lelenguyah --- Animal Health and Industry Training Institute, Kenya MM Nyangito --- University of Nairobi, Kenya OV Wasonga --- University of Nairobi, Kenya RC Bett --- University of Nairobi, KenyaSpatial and temporal climate variability dictate herd mobility of transhumant communities, and therefore understanding this interrelationship is key to sustainable management of rangelands, especially in the face of the changing climate. This study was undertaken in Samburu county in Kenya,... -
Adults living with type 2 diabetes experiences of a randomised adapted diabetes nutrition education programme: a qualitative process evaluation
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Jane W Muchiri --- University of Pretoria, South Africa Gerda J Gericke --- University of Pretoria, South Africa Paul Rheeder --- University of Pretoria, South Africa -
Predation on the St Joseph Callorhinchus capensis by Cape fur seals Arctocephalus pusillus pusillus in Namibia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RH Leeney --- Namibia Nature Foundation, Namibia N Dreyer --- Ocean Conservation Namibia, NamibiaChondrichthyans form an important part of marine food webs as top predators and mesopredators. However, little is known about chondrichthyans in Namibian waters and the roles they play in ecosystem function. During efforts to disentangle Cape fur seals Arctocephalus pusillus... -
Movement and growth of the spotted gully shark Triakis megalopterus in South African waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BQ Mann --- Oceanographic Research Institute (ORI), South Africa GL Jordaan --- Oceanographic Research Institute (ORI), South Africa WN Dalton --- Oceanographic Research Institute (ORI), South Africa R Daly --- Oceanographic Research Institute (ORI), South Africa M Soekoe --- Reel Science Coalition, South Africa WM Potts --- Rhodes University, South Africa MJ Smale --- Zoology Department and Institute for Coastal and Marine Research, Nelson Mandela University, South Africa L Swart --- Fisheries and the Environment (DFFE), South AfricaThe movement and growth of spotted gully sharks Triakis megalopterus (family Triakidae) along the coast of South Africa were investigated using external dart tagging. Of a total of 7 211 sharks tagged, 657 (9.1%) were recaptured over a 37-year period,... -
How open are African inventors? Open green technologies and patenting activities in Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Maruf Sanni --- Obafemi Awolowo University, Nigeria Yeong Jae Kim --- KDI School of Public Policy and Management, Republic of KoreaOpen green innovation is essential to accelerate decarbonization in Africa. The dearth of empirical evidence on the current trajectory of green innovation in Africa often hinders appropriate green innovation policy design. This study investigates the incidence of collaboration in inventive... -
Two-step inertial Tseng’s extragradient method for solving quasimonotone variational inequalities
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: O.T. Mewomo --- University of KwaZulu-Natal, South Africa R.N. Nwokoye --- University of KwaZulu-Natal, South Africa C.C. Okeke --- University of the Witwatersrand, South AfricaWe focus on quasimonotone variational inequality problems with non-Lipschitz operator and combine some operator theory techniques to establish a weak convergent fixed point iterative method to approximate the solution of the presented problems. The convergence analysis assumes very mild conditions... -
Lack of evasive behaviour by a Martial Eagle Polemaetus bellicosus on impact with a turbine blade at a South African wind farm: causes and mitigations
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Robert E Simmons --- University of Cape Town, South Africa Marlei Martins --- , South AfricaWe describe a collision of Africa’s largest raptor, the Martial Eagle Polemaetus bellicosus with a spinning blade at a South African wind farm in the Eastern Cape in July 2016, and the abandonment of the territory following a second fatal... -
A conservation assessment of birds in the Karoo region of South Africa: densities, populations, ranges, and trend estimates
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan TK Lee --- University of Cape Town, South Africa Dale R Wright --- RMIT University, AustraliaThe Karoo region of South Africa, which includes the Succulent and Nama Karoo biomes, supports a unique avian fauna, with ten bird species occurring exclusively in this arid-zone region and many others exhibiting a strong preference for this habitat. To... -
On existence of positive solutions of p-Laplace equations
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Tiantian Zhou --- Nanjing Normal University, ChinaIn this paper, we consider the existence of positive solutions of an equation with p-Laplacian -
Wildlife corridors in a Southern African conservation landscape: the political ecology of multispecies mobilities along the arteries of anthropogenic conservation
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael Bollig --- University of Cologne, GermanyThe decline of biodiversity is a key topic in public discussions around the globe. These debates have triggered massive efforts to increase protected areas and to safeguard the corridors connecting them. The wildlife corridors dealt with in this article are... -
The making, unmaking and adaptation of Mayeyi multispecies entanglements within the Kwando-Linyanti wetlands: eighteenth century to 1990
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jessica-Jane Lavelle --- University of Cape Town, South AfricaThe Kwando-Linyanti wetlands of Namibia are known for their rivers, floodplains and woodlands with abundant wildlife and a diversity of birds and fish. Within these landscapes reside the Mayeyi, a Bantu-speaking people whose culture is closely entangled with the wetlands... -
Profiling the mental health fortitude of institutionalised children: A quantitative analysis of psychological resources
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Adane K. Melese --- University of the Western Cape, South Africa Athena Pedro --- University of the Western Cape, South Africa Nceba Z. Somhlaba --- University of the Western Cape, South AfricaNumerous studies on institutionalised children demonstrate the undesirable influence of care centres on the levels of positive mental health. Against the established body of literature, this study evaluates the positive psychological qualities of children living in care centres and sex... -
Purposeful rumination on childhood trauma and post-traumatic growth among college students: A moderated mediation model
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Caiping Zhou --- Hunan University of Finance and Economics, China Liu Ning --- Hunan Normal University, China Haibin Li --- Jiangxi University of Chinese Medicine, ChinaThis study explored the role of cognitive reappraisal and perceived social support in the relationship between purposeful rumination and post-traumatic growth among college students who experienced childhood trauma. A total of 811 college students with childhood trauma exposure (female =... -
Areas of work–life and psychological reward satisfaction among new Chinese graduate nurses: The moderating role of psychological capital
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Huan Ma --- School of Nursing, Sichuan Vocational College of Health and Rehabilitation, China Jin-Mei Zou --- School of Nursing, Sichuan Vocational College of Health and Rehabilitation, China Ying Zhong --- Nursing Department, Zigong First People’s Hospital, China Dan Song --- School of Nursing, Sichuan Vocational College of Health and Rehabilitation, ChinaThis study aimed to explore the relationship between areas of work–life and psychological reward satisfaction, and the role of psychological capital in that relationship. Participants were from four Chinese major public hospitals (n = 532; female = 88.7%; mean age... -
The potential predators of pancake tortoises (Malacochersus tornieri) in Kenya
Item type: Journal Article • Journal: African Zoology • Authors: Jacob Mueti Ngwava --- Hainan Normal University, China Fanrong Xiao --- Hainan Normal University, China Patrick Kinyatta Malonza --- , Kenya Beryl Akoth Bwong --- , Kenya Hai-Tao Shi --- Hainan Normal University, ChinaStudying the interactions between prey and predators is crucial for understanding the intricacies of predator-prey dynamics and for formulating effective conservation strategies. Yet there is almost no systematic analysis of pancake tortoise predation, and its consequences on the tortoise populations... -
A study on approximate controllability of linear impulsive equations in Hilbert spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Nazim I. Mahmudov --- Eastern Mediterranean University, TurkeyIn this paper, we study an approximate controllability for the impulsive linear evolution equations in Hilbert spaces. We give a representation of solution in terms of semigroup and impulsive operators. We present the necessary and sufficient conditions for approximate controllability... -
Chen-Chvátal’s conjecture for graphs with restricted girth
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Luis Pedro Montejano --- Universitat Rovira i Virgili, SpainA classic result in Euclidean geometry asserts that every non-collinear set of n points in the Euclidean plane determines at least n distinct lines. Chen and Chvátal conjectured that this holds for an arbitrary finite metric space, with an appropriate... -
Cayley regression problem of some groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Q. Liao --- Guangdong University of Education, P.R. China W. Liu --- Central South University, P.R. China J. Tang --- Hunan First Normal University, P.R. ChinaIn this paper, we consider the Cayley regression problem of the cyclic groups and the dihedral groups. We give the sufficient and necessary conditions for the cyclic group ℤ n to be a Cayley regression. Moreover, the dihedral group D... -
On the skew eigenvalues of joined union of oriented graphs and applications
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Hilal A. Ganie --- , India Archana Ingole --- , India Ujwala Deshmukh --- , IndiaLet be an oriented graph with n vertices and m arcs having underlying graph G. The skew matrix of oriented graph , denoted by is a (−1, 0, 1)- skew symmetric matrix. The skew eigenvalues of are the eigenvalues of... -
Notes on sublocales and dissolution
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jorge Picado --- University of Coimbra, Portugal Aleš Pultr --- Charles University, Czech RepublicThe dissolution (introduced by Isbell in [3], discussed by Johnstone in [5] and later exploited by Plewe in [12, 13]) is here viewed as the relation of the geometry of L with that of the more dispersed T(L) = S(L)op... -
A generalization of the MP-
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Quality of life in participants with primary hypothyroidism on treatment at Chris Hani Baragwanath Academic Hospital
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: JM Mbuyi --- University of the Witwatersrand, South Africa S Bhana --- University of the Witwatersrand, South Africa R Daya --- University of the Witwatersrand, South Africa -
Patterned, plain, and in-between: An assessment of ecogeographic divergence between colour pattern morphs of the common egg-eater Dasypeltis scabra
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jody M. Barends --- University of Johannesburg, South Africa Ielhaam Bassier --- University of the Western Cape, South Africa Emma E. Buckley --- University of the Western Cape, South Africa Cora S. Stobie --- National Museum, South Africa Michael F. Bates --- National Museum, South AfricaIntraspecific variation in colour patterns may reflect adaptive responses to local environmental regimes that favour selection of different trade-offs between visual communication, thermoregulation, and anti-predatory functions. Understanding the drivers of colour pattern variation within species can therefore provide valuable insights... -
Unveiling the First Neobatrachian (Anura) Discovered in the paleokarst system of Bolt’s Farm (Plio-Pleistocene; Cradle of Humankind), South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Alfred Lemierre --- Muséum national d’Histoire naturelle, France Nonhlanhla Vilakazi --- University of Johannesburg, South Africa Dominique Gommery --- Muséum national d’Histoire naturelle, France Lazarus Kgasi --- Ditsong: National Museum of Natural History, South AfricaAnurans are widely diversified in South Africa, with more than 150 recognised species across the country. However, most the known fossil records of anurans are concentrated in the southern part of South Africa, within the rich Pliocene site of Langebaanweg... -
Phylogeographic structuring in a widespread southern African grass snake (Psammophiinae: Psammophylax rhombeatus)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: C. Keates --- Rhodes University, South Africa W. Conradie --- Port Elizabeth Museum (Bayworld), South Africa S. Edwards --- Rhodes University, South AfricaThe structural and environmental heterogeneity within southern Africa has given rise to many morphological forms of Psammophylax rhombeatus distributed throughout the country, with previous studies neglecting the associated molecular significance of these forms. The species’ widespread, generalist ecology coupled with... -
Partitioning the sources of sediment organic carbon in South African seagrass meadows
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Bossert --- Stellenbosch University, South Africa S von der Heyden --- Stellenbosch University, South Africa J Colling --- Stellenbosch University, South Africa A Ndhlovu --- Stellenbosch University, South AfricaIn the sediments of seagrass meadows, allochthonous carbon sources can account for 50–90% of sediment organic carbon (SOC), in which non-seagrass carbon is derived from external organic matter advected into the meadow’s sediments or trapped by the seagrass canopy. Identifying... -
Future of the IUCN Endangered white steenbras Lithognathus lithognathus (Sparidae) – a tale of two estuaries
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AK Whitfield --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa MKS Smith --- Rhodes University, South AfricaThis review draws on a long history of ichthyological and fisheries research to examine the changing stock status of the estuary-dependent white steenbras Lithognathus lithognathus in the South African Swartkops and Knysna estuaries. The available evidence points to a major... -
To move or not? Tourists’ perceptions and management considerations of a beached whale carcass in a South African national park and marine protected area
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MKS Smith --- , South Africa GS Penry --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa MM Mokhatla --- , South AfricaThe handling of beached cetacean carcasses requires social, legal, financial, ecological and logistical considerations. However, limited research on the topic hinders informed decision-making. A large humpback whale carcass that washed ashore at a South African marine protected area (MPA) provided... -
Using stakeholder knowledge to co-produce research priorities for a raptor species vulnerable to impacts of wind energy facilities
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Merlyn Nomusa Nkomo --- University of Cape Town, South Africa Megan Murgatroyd --- University of Cape Town, South Africa Samantha Ralston-Paton --- , South Africa Arjun Amar --- University of Cape Town, South AfricaThe global energy transition necessitates a rapid increase in infrastructure in developing countries, including for wind energy facilities (WEFs). Concerns arise regarding the negative impacts of WEFs on biodiversity, especially on birds of prey or raptors and other volant animals... -
Population genetics and key phenotypic variability does not support different subspecies of Yellow-throated Woodland Warbler Phylloscopus ruficapilla within the Eastern Cape, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jake M Mulvaney --- Stellenbosch University, South Africa Michael I Cherry --- Stellenbosch University, South AfricaTwo subspecies of the Yellow-throated Woodland Warbler Phylloscopus ruficapilla (family Phylloscopidae) have been recognised in South Africa based on the extent and intensity of yellow colouration. Our previous multi-locus population genetic survey across much of the Eastern Cape and southern... -
Innovation and economic growth: An empirical analysis for African countries
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Atoko Kasongo --- Human Sciences Research Council, Cape Town, South Africa, Tlangelani Makamu --- Human Sciences Research Council, Cape Town, South Africa,In recent decades, innovation has become recognized as a key driver of economic growth. This study investigated the relationship between innovation and economic growth in 32 African countries from 2006 to 2017. The linear regression panel corrected standard errors (PCSEs)... -
Assessing digital competencies and AI ethics awareness among customers in the banking sector
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: McArthur Fundira --- University of South Africa, South Africa Emmanuel Innocents Edoun --- University of Johannesburg, South Africa Anup Pradhan --- University of Johannesburg, South Africa Charles Mbohwa --- University of South Africa, South AfricaAs digital technologies and AI systems increasingly pervade banking services, understanding customers’ digital capabilities and awareness of AI ethics principles is paramount. This paper delves into these critical aspects among banking clientele. Employing a survey research approach with a cross-sectional... -
The ‘Airlift Program’ and the Making of a ‘Glocal’ Citizen: Exploring the Nomadic Subject in Philip Ochieng’s Biography, The 5th Columnist: A Legendary Journalist (2015) by Liz Gitonga-Wanjohi
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Christopher Odhiambo Joseph --- Moi University, KenyaThe story of Kenyans who travelled to study in the United States of America, in what is known as the airlifts program and, its resultant implications on the project of the nation building, is well known. So much has been... -
‘The Happy Valley’: Temporalized Spatiality in Michael Radford’s White Mischief (1987)
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Boneace Chagara --- Institute for Asian and African Studies, GermanyContemporary times mark a fundamental shift in our sense and experience of the world. The postmodern condition — as remarked by Fredric Jameson (1991) and Jean-Francois Lyotard (1979), among others — calls for new conceptions of lived reality. Nevertheless, profound... -
The impact of onboarding practices on employee retention in the cruise industry
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Marijn Zuiker --- Hotel Management School Leeuwarden, NHL Stenden University of Applied Sciences, The Netherlands Rodney Westerlaken --- Hotel Management School Leeuwarden, NHL Stenden University of Applied Sciences, The NetherlandsThis study investigates effective onboarding practices in the cruise industry, examining the interplay between onboarding, hospitality and seafaring occupations due to limited existing research. Using an exploratory mixed-method approach, the researchers employed insider and outsider perspectives to critically analyse employee... -
Evidence-based global yield benchmarks in unthinned industrial plantation eucalypts
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Robert Neil Pallett --- Institute of Commercial Forestry Research, South AfricaThere is increasing global demand for wood and wood products for a growing diversity of applications. Even-aged plantation forests are efficient in providing goods and services from relatively small areas of land. Eucalypt plantations have been an important component of... -
Strong soil–vegetation relationship in riparian forests of the middle Rio Doce watershed, south-eastern Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Débora Oliveira Sousa --- Universidade Federal de Minas Gerais, Brazil Daniel Negreiros --- Universidade Federal de Minas Gerais, Brazil Letícia Ramos --- Universidade Federal de Minas Gerais, Brazil João Carlos Gomes Figueiredo --- Universidade Estadual de Montes Claros, Brazil Dario C Paiva --- Institute of Environment, Florida International University, USA Yumi Oki --- Universidade Federal de Minas Gerais, Brazil Wénita de Souza Justino --- Universidade Federal de Minas Gerais, Brazil Rubens Manoel dos Santos --- Universidade Federal de Lavras, Brazil Lorena Ashworth --- Universidade Federal de Minas Gerais, Brazil Yule Roberta Ferreira Nunes --- Universidade Estadual de Montes Claros, Brazil G Wilson Fernandes --- Universidade Federal de Minas Gerais, BrazilPhytosociological surveys and soil quality studies are relevant tools for the implementation of restoration programmes. This study aimed to characterise the vegetation of the tree and sapling strata in preserved riparian forests of the middle portion of the Rio Doce... -
Relationship between social capital and post-partum antiretroviral therapy adherence among women living with HIV in the Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Khadijat K. Adeleye --- University of Massachusetts, USA Eyitayo O. Owolabi --- Arizona State University, USA Oladele V. Adeniyi --- Walter Sisulu University, South Africa David Aduragbemi Okunlola --- Florida State University, USA Anthony I. Ajayi --- , KenyaBackground: Adherence to antiretroviral therapy (ART) is crucial for preventing vertical transmission of HIV and maternal deaths. While the literature is replete with studies on ART adherence, the role of social capital in adherence to ART is less studied. Drawing... -
On the general position number of the k-th power graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jing Tian --- Zhejiang University of Science and Technology, China Kexiang Xu --- Nanjing University of Aeronautics & Astronautics, ChinaA set is called a general position set of a graph G if any triple set V 0 of R is non-geodesic, that is, three elements of V 0 cannot lie on the same geodesic of G. The general position... -
Strengths mindset and job satisfaction: The mediating role of thriving at work and the moderating role of authentic leadership
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yang Liu --- North China Electric Power University, China Shunkun Yu --- North China Electric Power University, China He Ding --- North China Electric Power University, ChinaWe examined whether thriving at work mediated the relationship between strengths mindset and job satisfaction, as well as the moderating role of authentic leadership within this relationship. Data were gathered from 717 employees (female = 46%; mean age = 31.77... -
Narcissistic female serial killers: A psychobiographical study of Cecilia Johanna Steyn
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Monique Erasmus --- University of Johannesburg, South Africa Zelda G. Knight --- University of Johannesburg, South AfricaThis article examines the psychobiography of Cecilia Johanna Steyn, a female serial killer from South Africa. The study analysed Cecilia Steyn’s childhood development to suggest possible adverse childhood experiences predisposing her to instigate murders on her demand. Drawing on the... -
Family quality of life of Ghanaian families raising people with intellectual disability
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Daniel Miezah --- University of Cape Coast, Ghana Emmanuel Eshun --- University of Cape Coast, Ghana Kenneth Owusu Ansah --- , GhanaThis study examined the family quality of life (FQOL) of people with intellectual disabilities (PWID). Participants were 176 Ghanaian parents of PWID (mothers = 71.6%). The mean age of the parents was 41.64 years (SD = 9.21 years). The parents... -
The number of 1-nearly independent vertex subsets
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Eric O.D. Andriantiana --- Rhodes University, South Africa Zekhaya B. Shozi --- University of KwaZulu-Natal, South AfricaLet G be a graph with vertex set V(G) and edge set E(G). A subset I of V(G) is an independent vertex subset if no two vertices in I are adjacent in G. We study the number, σ 1(G), of... -
Some results on anti-pre-Lie superalgebras and admissible Novikov superalgebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Zhao Chen --- Guangxi University for Nationalities, China Shanshan Liu --- Shenzhen Technology University, China Liangyun Chen --- Northeast Normal University, ChinaIn this paper, we extend the notion of anti-pre-Lie algebras to the ℤ2-graded version, and introduce the notion of anti-pre-Lie superalgebras. They can be characterized as a class of Lie-admissible superalgebras that satisfy its negative left multiplication operators are the... -
On partial endomorphisms of a star graph
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ilinka Dimitrova --- South-West University “Neofit Rilski”, Bulgaria Vítor H. Fernandes --- Universidade Nova de Lisboa, Portugal Jörg Koppitz --- Institute of Mathematics and Informatics, BulgariaIn this paper we consider the monoids of all partial endomorphisms, of all partial weak endomorphisms, of all injective partial endomorphisms, of all partial strong endomorphisms and of all partial strong weak endomorphisms of a star graph with a finite... -
Population trends of the Cape Parrot Poicephalus robustus in the Amatholes, Eastern Cape: trialling ground-based flock photography for demographic and health assessment
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Clare J Padfield --- , South Africa Kate F Carstens --- , South Africa Johann C Carstens --- , South Africa Francis R Brooke --- , South Africa Kirsten Wimberger --- , South AfricaGlobally, 60% of species in the order Psittaciformes are experiencing population declines. Understanding demographic and health trends in populations is vital for the prioritisation of limited conservation resources. The Cape Parrot Poicephalus robustus is a South African endemic forest species... -
Range expansion of African Red-eyed Bulbul Pycnonotus nigricans in western South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Itxaso Quintana --- Biodiversity and Development Institute, South Africa Salome Willemse --- Biodiversity and Development Institute, South Africa Karis Daniel --- Biodiversity and Development Institute, South Africa Trevor Hardaker --- , South Africa Les G Underhill --- Biodiversity and Development Institute, South AfricaData from five citizen science projects were used to document shifting ranges of two species of bulbul in South Africa. We show that African Red-eyed Bulbuls Pycnonotus nigricans steadily replaced Cape Bulbuls P. capensis in the lower Olifants River valley,... -
Molluscicidal effects of Persicaria senegalensis on terrestrial snails Cornu aspersum in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MC Mathole --- Sefako Makgatho Health Sciences University, South Africa PH King --- Sefako Makgatho Health Sciences University, South AfricaCornu aspersum is an invasive terrestrial snail pest of the family Helicidae. In South Africa, where the snail causes significant crop losses in viticulture areas, synthetic molluscicides are used to control them. However, the latter negatively affects both those who... -
Predator avoidance by mesopredatory benthic sharks in response to potential predators in a natural environment
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DBS Rooth --- National Institute of Aquatic Resources, Technical University of Denmark, Denmark RGA Watson --- , South AfricaSome benthic elasmobranch mesopredators utilise crypsis to avoid predation by higher trophic predators. While this ability has been documented in various elasmobranchs such as rays, cryptic behaviour has been scarcely documented in catsharks (family Scyliorhinidae). Freezing behaviour by leopard catsharks... -
Changes in hepatic volume and body composition following a two-week very low-calorie diet (VLCD) prior to a laparoscopic Nissen fundoplication
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Francis-Mico Price --- University of the Free State, South Africa Francois Nicholaas Schutte --- Zuid-Afrikaans Hospital, South AfricaAn enlarged fatty liver makes laparoscopic surgery of the upper gastrointestinal tract (GIT) more technically challenging. A 35-year-old female was referred to the dietitian for a preoperative very low-calorie diet (VLCD) to assist in decreasing hepatic volume and visceral adiposity... -
Training Social Network-Central Fishermen in Western Kenya to Distribute HIV Self-Test Kits and Health Facility Referral Vouchers
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joseph Onyango Okore --- , Kenya Carol S Camlin --- University of California San Francisco, USA Jayne Lewis-Kulzer --- University of California San Francisco, USA Sarah A Gutin --- University of California San Francisco, USA Edwin Charlebois --- University of California San Francisco, USA Benard Ayieko --- , Kenya Zachary Kwena --- Kenya Medical Research Institute, Kenya Kawango Agot --- , KenyaLow HIV testing among men, particularly highly mobile fishermen, is a persistent challenge. The Owete study (NCT#04772469) used social network-central men (Promoters) to promote testing and linkage to HIV services among social networks of fishermen in western Kenya. The Promoters... -
Big cities, big bodies: urbanisation correlates with large body sizes and enhanced body condition in African dwarf chameleons (Genus: Bradypodion)
Item type: Journal Article • Journal: African Zoology • Authors: Jody M Barends --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South Africa Krystal A Tolley --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South AfricaUrbanisation is a major driver of habitat transformation that alters the environmental conditions and selective regimes of the habitats where it occurs. For species inhabiting urban habitats, such alterations can facilitate adaptive responses in their phenotypes, including their morphology. Quantifying... -
Managerial capabilities and their drivers: Lessons from grain-milling firms in Tanzania
Item type: Journal Article • Journal: Africa Journal of Management • Authors: David Rwehikiza --- University of Dar es Salaam, Tanzania Goodluck Charles --- University of Dar es Salaam, Tanzania Lettice Rutashobya --- University of Dar es Salaam, TanzaniaDespite managerial capabilities being credited for driving business performance, little evidence exists about how those capabilities are acquired. This study investigated managerial capabilities and their drivers in grain-milling firms in Tanzania. Based on a qualitative analysis of ten enterprises, the... -
Volatility and return spillovers between private equity buyout, venture capital and major financial markets
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Korhan K. Gokmenoglu --- Ankara HBV University, Turkey Efe Altingunes --- Department of Banking and Finance, Eastern Mediterranean University, CyprusThis study investigates the volatility and return spillovers between Private Equity Buyouts (PE) and Venture Capital (VC), the equity market, precious metals, real estate, and the Dollar index, which has been widely ignored in the literature. We analysed daily data... -
Does board diversity influence idiosyncratic risk: Empirical evidence from Chinese listed firms
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Furman Ali --- School of Finance, Southwestern University of Finance and Economics, China Muhammad Awais Khan --- Research Institute of Economics and Management, Southwestern University of Finance and Economics, China Zohaib Zahid --- Jiangsu University, China Khadim Hussain --- College of Economics, Shenzhen University, ChinaThis study examines the relationship between board diversity, measured as cognitive (tenure, expertise, and education) and demographic (age, gender, and nationality) diversities, and idiosyncratic risk for 2000 Chinese non-financial firms from 2008 to 2020. This study highlights that cognitive board... -
DNA sequence data confirms the presence of two closely related cypress-feeding aphid species on African cypress (Widdringtonia spp.) in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Mesfin Wondafrash --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa Michael J Wingfield --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa Brett P Hurley --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa Bernard Slippers --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa Eston K Mutitu --- Kenya Forest Research Institute (KEFRI), Kenya Herbert Jenya --- Forestry Research Institute of Malawi, Malawi Trudy Paap --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South AfricaAphids in the genus Cinara (Hemiptera: Aphididae) are pests of coniferous trees globally. Some of these aphids have become invasive in various parts of the world and have led to significant economic and environmental damage. During surveys conducted as part... -
Willingness to stay or quit: evidence from migrants working in the galway bar and restaurant industry in Ireland
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Olaiwola Jamiu Ogunpaimo --- University of Galway, Ireland Kesiena Ebenade --- School of Business, National College of Ireland, IrelandHealth and safety issues, irregular working hours and low wages frequently intensify the concerns that migrant hospitality workers experience regarding their jobs. Given these challenges, the article explores the work motivation and career intentions of migrant workers in the Galway... -
Lebesgue-Fourier algebras on coset spaces and approximate amenability
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Maryam Esfandani --- Isfahan University of Technology, Iran Rasoul Nasr Isfahani --- Isfahan University of Technology, IranLet K be a compact subgroup of a locally compact group G. In this work, we initiate an investigation of the Lebesgue-Fourier algebra S 1 A(G/K) on the coset space G/K with pointwise multiplication; after some general results on the... -
The maximum norm error estimate and Richardson extrapolation methods of a second-order box scheme for a hyperbolic-difference equation with shifts
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Dingwen Deng --- Nanchang Hangkong University, China Zhu-an Wang --- Nanchang Hangkong University, China Zilin Zhao --- Nanchang Hangkong University, ChinaThe study aims at the development and theoretical analyses of a box method used to solve a kind of hyperbolic equations with shifts. By using the discrete energy method, it is shown that numerical solutions converge to exact solutions with... -
Employing behavioural portfolio theory for sustainable investment: Examining drawdown risks and ESG factors
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Aayush Poddar --- Indian Institute of Technology, India Sujoy Bhattacharya --- , R Rathish Bhatt --- Management, Goa Institute of Management, IndiaThis study uses behavioural portfolio theory (BPT) within the Markowitz Portfolio Theory framework to enhance portfolio management by focusing on sustainability and risk mitigation during market downturns. It selects portfolios to hedge against market lows using Conditional Drawdown at Risk... -
Measuring South Africa destination loyalty levels through recommending and complaining framings
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Concepción Román --- Institute of Tourism and Sustainable Economic Development, Universidad de Las Palmas de Gran Canaria, Juan Carlos Martín --- Institute of Tourism and Sustainable Economic Development, Universidad de Las Palmas de Gran Canaria, Engelina du Plessis --- North-West University, South AfricaThe study aims to analyse how framing (recommending versus complaining) affects the measurement of destination loyalty. It focuses on international tourists who visited South Africa, and evaluated loyalty through the two framings. The study tests whether loyalty can be measured... -
Travelling and the well-being of the elderly: expectations and risks
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Adalberto Dias de Carvalho --- Higher Institute of Business Sciences and Tourism, Portugal José L Gonçalves --- , Portugal Florbela S Gandra --- , PortugalThe aim of this article is to highlight the importance of tourist travel for the well-being of older people by identifying some of the psycho-sociological components of their decision-making processes in the context of nursing homes and the family, with... -
Modification of the Aegilops neglecta - common wheat Lr62/Yr42 translocation through allosyndetic pairing induction
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.F. Marais --- Department of Genetics, University of Stellenbosch, Private Bag X1, South Africa A.S. Marais --- Department of Genetics, University of Stellenbosch, Private Bag X1, South Africa A. Eksteen --- Department of Genetics, University of Stellenbosch, Private Bag X1, South Africa Z.A. Pretorius --- Department of Plant Sciences, University of the Free State, South AfricaThe Lr62/Yr42 translocation comprises mostly alien chromatin and retains only the very distal end of wheat chromosome arm 6AL, including the telomere. The large amount of foreign chromatin prohibits commercial use of the resistance and an attempt was therefore made... -
The potential use of a water treatment residue as a temporary growth medium over a coal combustion ash: yield response of two creeping grasses
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.W. Titshali --- Soil Science, School of Environmental Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville 3209,, South Africa J.C. Hughes --- Soil Science, School of Environmental Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville 3209,, South AfricaRecent research has indicated the potential for recovery of aluminium from alumina-rich coal-combustion ashes (CCA). However, the ash disposal sites, if not vegetated, often present environmental risks due to water and air-borne dispersal of contaminants. This study investigated the potential... -
Performance of some quinoa (Chenopodium quinoa Willd.) genotypes in Kenya
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.E. Oyoo --- Kenya Agricultural Research Institute (KARI), Food Crops Section, Kenya S.M. Githiri --- University of Nairobi, Department of Plant Science and Crop Protection, Kenya P.O. Ayiecho --- University of Nairobi, Department of Plant Science and Crop Protection, KenyaQuinoa (Chenopdium quinoa Willd.) has been cultivated for thousands of years in South America for its nutritious grain and leaves. Demand for the crop has risen in the recent past. In order to satisfy the demand, there is need to... -
Business innovation intent among college students: Contributions of psychological capital and entrepreneurial self-efficacy
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Renitha Sooknannan --- University of South Africa, South Africa Melinde Coetzee --- University of South Africa, South Africa Ingrid L. Potgieter --- University of South Africa, South AfricaBusiness innovation is centre stage in fostering social and economic growth and entrepreneurial ventures. We explored how entrepreneurial self-efficacy mediates the link between psychological capital and entrepreneurial intent in business innovation. A sample of 365 female and male black African... -
Subjective well-being of college students: Developmental trajectories, predictors, and risk for depression
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xinqiao Liu --- Tianjin University, China Yan Li --- Tianjin University, China Wenjuan Gao --- Institute of Higher Education, Beihang University, ChinaThe study aimed to identify different developmental trajectories of subjective well-being for 2 473 college students from freshman to senior year (female = 47.15%; mean age = 19.6 years, SD = 0.894 years). We further explored the associations between categories... -
Dance sport involvement and behavioural loyalty: Body image and self-efficacy among university students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yongdi Wang --- Hunan City University, China Kyungsik Kim --- Hoseo University, South Korea Qingyang Shao --- Hoseo University, South KoreaWe investigated the role of body image and self-efficacy in the relationship between dance sport involvement, and behavioural loyalty in university students participating in dance sport. A total of 75 students from each of ten universities were recruited. Participant were... -
Aspirations and meanings of lighter skin tone in the African context: A rapid review
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sikelelwa Ntsokota --- North-West University, South Africa Lelanie Malan --- North-West University, South Africa Esmé van Rensburg --- North-West University, South Africa Werner de Klerk --- North-West University, South AfricaAcross cultures, skin tone is associated with social impressions and outcomes, but the meanings and implications of these associations has not garnered clear research evidence. This rapid review aimed to aggregate the evidence regarding the ascribed meanings and implications of... -
How can work improve family life quality? The influence of thriving at work on family role performance and work–family balance satisfaction
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Shaoqing Su --- Northwest Normal University, People’s Republic of China Baoyan Yang --- Northwest Normal University, People’s Republic of China Zhaobiao Zong --- East China Normal University, People’s Republic of China Zhao Zhang --- Lanzhou Modern Vocational College, People’s Republic of ChinaThis study examined how career success related to employees’ family life quality, with interpersonal capitalisation between employees’ work and family life, controlling for employees’ proactive personality. We sampled married employees from Northwest China (n = 154, females = 53.2%, mean... -
The approximation property for the predual of weighted spaces of holomorphic mappings on Banach spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Deepika Baweja --- , India Jahir Abbas Sardar --- , IndiaIn this paper, we investigate the approximation property for the predual of the weighted space of holomorphic mappings, where is a countable family of weights defined on a balanced open subset U of a Banach space E. We introduce a... -
A meta-analysis of the relationship between burnout and psychological protective variables among Korean preschool teachers
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xiuhong Xu --- School of Teacher Education, Lishui University, China Lei Chen --- Academic Affairs Section, School of Chinese Celadon, Lishui University, China Yuxin Jiang --- School of Education (Teachers College), Guangzhou University, ChinaWe conducted a meta-analysis to determine the relationship between psychological protective variables, burnout, and aspects of burnout in the work experiences of kindergarten teachers. The R language program was used to analyse the 103 included studies. From these analyses, the... -
Untangling the Magelonidae (Annelida: Polychaeta) of southern Africa, including the description of a new species
Item type: Journal Article • Journal: African Zoology • Authors: Kate Mortimer --- Amgueddfa Cymru-Museum Wales, United Kingdom Dylan T Clarke --- Iziko Museums of South Africa, South Africa‘A monograph on the Polychaeta of Southern Africa’ by J. H. Day, published in 1967 and covering over 700 species, was considered an essential reference text for marine biologists. Nonetheless, despite the major contribution it has made, we now know... -
Nearly six decades of grazing research published by the Grassland Society of Southern Africa: trends, recommendations and gaps
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: G Arena --- , South Africa H-J Hawkins --- , South AfricaWe reviewed research on grazing in extensive rangelands published by the Grassland Society of Southern Africa’s (GSSA) flagship journal, founded in 1966. We aimed to identify and synthesise emerging themes, trends, key recommendations and research gaps. From 1966 to 2023,... -
Rethinking radical veld improvement: a sustainable approach to grazing land restoration?
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: KP Kirkman --- University of KwaZulu-Natal, South AfricaRadical veld improvement (RVI), a concept explored in southern Africa during the mid to late 1900s, aimed to intensify agricultural landscapes by enhancing veld productivity by incorporating productive forage grasses or legumes, soil nutrient enrichment, or a combination of both... -
Patent-paper citations: A window into the technological impact of Tunisian research
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ridha Mhamdi --- Centre of Biotechnology of Borj-Cedria, TunisiaThis study constitutes the first report evaluating research performance at a national level by analyzing literature references cited in patents. The objective is to quantify the technological impact of the Tunisian research through patent-paper citations. Using the SciVal research analytics... -
Adapting to climate change amidst innovation diffusion and declining indigenous agricultural knowledge and practices in Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Pius Siakwah --- University of Ghana, Ghana Austin Dziwornu Ablo --- University of Ghana, Ghana Rosina Sheburah-Essien --- University of Ghana, Ghana Mariama Zaami --- University of Ghana, Ghana Joseph Awetori Yaro --- University of Ghana, GhanaThis paper examines how farmers adapt to climate change through innovation diffusion amidst declining indigenous agricultural knowledge and practices in Ghana. Small-scale farmers rely on indigenous practices and technological diffusion to cope with change even where the adoption levels of... -
The contribution of social and territorial innovation to territorial development in Morocco: Insights from a systematic review
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Tariq Laajini --- LARETA, Hassan 1st University, Morocco Hind TadjoustiThis study investigates how social and territorial innovation influences territorial development in Morocco, offering insights into inclusive governance approaches that integrate collaborative, participatory, and solidarity-based practices. Utilizing a systematic documentary analysis of six innovative projects, the research reveals that these... -
Relationship between diabetes knowledge, self-management practices, and glycaemic control among patients attending diabetic clinic at a tertiary level hospital in Johannesburg, South Africa
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: BSL Moshoeshoe --- University of the Witwatersrand, South Africa Z Bayat --- University of the Witwatersrand, South Africa S Bulbulia --- University of the Witwatersrand, South Africa -
Genotype × environment interaction analysis for grain yield of bread-wheat genotypes under drought-prone environments
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Yared Semahegn --- African Centre for Crop Improvement, University of KwaZulu-Natal, South Africa Hussein Shimelis --- African Centre for Crop Improvement, University of KwaZulu-Natal, South AfricaThe analysis of genotype × environment interaction (GEI) is crucial for distinguishing the performance of genotypes across different environments. The aim of this study was to investigate the GEI for grain yield in bread wheat and to establish selection criteria to enhance... -
Integrating seasonal forecast information with crop models to inform decision making in small-scale farming under climate variability
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Siyabusa Mkuhlani --- Climate Systems Analysis Group, Environmental and Geographical Science Department, Faculty of Science, University of Cape Town, South Africa Farirai Rusere --- University of the Witwatersrand, South Africa Nkulumo Zinyengere --- World Bank Group, USA Olivier Crespo --- Climate Systems Analysis Group, Environmental and Geographical Science Department, Faculty of Science, University of Cape Town, South AfricaIntegrating seasonal forecast information and crop models has the potential to inform farm management decisions under climate variability. The study assessed the feasibility of integrating seasonal forecast information into crop models for decision making in small-scale farming conditions in South... -
Best approximation theorems via relatively u-continuous and Jaggi nonexpansive mappings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: M. Gabeleh --- Ayatollah Boroujerdi University, Iran R. Gholipour --- Yazd University, Iran H. Mazaheri --- Yazd University, Iran S.P. Moshokoa --- Tshwane University of Technology, South AfricaIn this paper, we introduced a new type of cyclic (noncyclic) mappings, called Jaggi relatively nonexpansive mappings and use to investigate the existence of best proximity points (pairs) in the framework of reflexive (strictly convex) Banach spaces by using a... -
On a variant of extremal disconnectedness in locales and spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Themba Dube --- University of South Africa, South Africa Ali Taherifar --- Yasouj University, IranWe study a variant of extremal disconnectedness in frames, defined by requiring that any two disjoint open sublocales should be separable by disjoint open sublocales each of which is the interior of some zero-sublocale. In spaces, this notion was recently... -
Maker-Breaker domination game played on corona products of graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Athira Divakaran --- Mar Athanasius College, India Tijo James --- Pavanatma College, India Sandi Klavžar --- University of Ljubljana, Slovenia Latha S. Nair --- Mar Athanasius College, IndiaIn the Maker-Breaker domination game, Dominator and Staller play on a graph G by taking turns in which each player selects a not yet played vertex of G. Dominator’s goal is to select all the vertices in a dominating set,... -
The extended Frobenius problem for Lucas series incremented by a Lucas number
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Aureliano M. Robles-Pérez --- Universidad de Granada, Spain José Carlos Rosales --- Universidad de Granada, SpainWe study the extended Frobenius problem for sequences of the form {la } ∪ {la + ln } n∈N and {la + ln } n ∈N , where {ln } n∈N is the Lucas series and la is a... -
Camera trapping observations of the Kloof Frog, Natalobatrachus bonebergi, in South Africa, reveals effects of environmental conditions on breeding behaviour patterns
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: C Acker-Cooper --- Endangered Wildlife Trust, South Africa L Roxburgh --- Endangered Wildlife Trust, South Africa J Tarrant --- Endangered Wildlife Trust, South AfricaThe threatened Kloof Frog (Natalobatrachus bonebergi) is associated with coastal forested rocky streams in the KwaZulu-Natal and Eastern Cape provinces, South Africa. Their expanded toe tips allow them to navigate rocks, branches and leaves, where the species lays distinct egg... -
Using wing bar patterns to identify sex in Crowned Eagles Stephanoaetus coronatus: A misleading field characteristic
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Shane C Sumasgutner --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Lauren K Common --- University of Vienna, Austria Simon Thomsett --- Soysambu Conservancy, Kenya Colleen T Downs --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Petra Sumasgutner --- University of Vienna, AustriaAlmost universally, raptors exhibit some degree of sexual size dimorphism, with many species also having substantial sexual dimorphism in plumage patterns. The monophyletic clade ‘booted eagles’ generally do not, except for the Crowned Eagle Stephanoaetus coronatus, which are believed to... -
Free-ranging poultry owners’ opinion towards raptors in Plateau State, Nigeria
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Caka Karlsson --- Biota Conservation Hub Foundation, Nigeria Michael M Williams --- Biota Conservation Hub Foundation, Nigeria Josiah Ibrahim --- AP Leventis Ornithological Research Institute, Nigeria Talatu Tende --- AP Leventis Ornithological Research Institute, Nigeria Ulf Ottosson --- AP Leventis Ornithological Research Institute, NigeriaDespite the importance of the poultry sector in Nigeria, limited research has explored free-ranging poultry farmers’ attitudes towards raptors and the factors influencing these perceptions. Perceptions, whether grounded in evidence or not, can shape behaviours and influence conservation outcomes, as... -
Yellow-billed Kite Milvus aegyptius nesting dynamics and breeding success across a human-modified landscape
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Roger N Porter --- , William W Howells --- , Ingrid B Weiersbye --- , South Africa Ben Hoffman --- University of KwaZulu-Natal, South Africa Sean N Porter --- Oceanographic Research Institute (ORI), South AfricaAnthropogenic habitat transformation is one of the leading causes of biodiversity decline. Migratory birds, particularly many raptor species, are increasingly threatened by global environmental change. We investigated the nesting dynamics and potential determinants of breeding success in a population of... -
Amplifying success in SMEs: Harnessing the joint power of social capital and new product development capability in developing economies
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Ahmed Agyapong --- Kwame Nkrumah University of Science and Technology, Ghana Patrick A. Akanpaaba --- Accra Business School, Ghana Tesfalidet Tukue --- Southern University, USA Amo Sarpong --- Kwame Nkrumah University of Science and Technology, GhanaThis study examines the ongoing debate in scholarly literature regarding the role of firm-specific resources and capabilities – namely, social capital (SC) and new product development capability (NPDC) – in influencing firm performance. Addressing a critical gap, the research explores... -
A Critical Analysis of the Intersection between Masculinity and Sodomy in Abdulrazak Gurnah’s Novels
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Mohammad Irfan Ul Haq --- Lovely Professional University, India Rasleena Thakur --- Lovely Professional University, IndiaMasculinity Studies, also referred to as Critical Men’s Studies, is an evolving area of research that is gaining momentum within academia, particularly in contemporary African Studies. Critical Men’s Studies scrutinizes the roles and behaviours associated with being male. The locus... -
The quest(ion) of Leaning Towards a Liberal Historiography in Edgar Tekere’s A Lifetime of Struggle (2007) and Cephas Msipa’s In Pursuit of Freedom and Justice: a Memoir (2015)
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Walter Kudzai Barure --- , South AfricaZimbabwe’s historiography is commonly confined to a singular narrative that glorifies the deeds of a few prominent figures while sidelining the contributions and perspectives of other political actors. This paper redirects the narrative focus by examining Edgar Tekere’s A Lifetime... -
Green practice implementation strategies and sustainability: a case of Kenya’s city hotels
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Elizabeth Kamunzyu --- The Technical University of Kenya, Kenya Josephine Opondo --- Jaramogi Oginga Odinga University of Science and Technology, Kenya Richard Makopondo --- The Technical University of Kenya, KenyaDespite hotels pursuing sustainability through the adoption of green practices, how the adoption is implemented has not attracted much research attention. Thus, this study explores the implementation strategies employed by city hotels in Kenya in their adoption of green practices,... -
The nexus between information and communication technology (ICT) and poverty status in South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Thapelo Chauke --- North-West University – Vanderbijlpark Campus, South Africa Oladipo Olalekan David --- North-West University – Vanderbijlpark Campus, South AfricaSince 1994, South Africa has grappled with persistent poverty and inequality. In an effort to eradicate these social issues, the South African democratic government has implemented several policies. However, there has been little success. The advent of globalization and advancements... -
Random walk labelings of perfect trees and other graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sela Fried --- Israel Academic College, Israel Toufik Mansour --- University of Haifa, IsraelA random walk labeling of a graph G is any labeling of G that could have been obtained by performing a random walk on G. Continuing two recent works, we calculate the number of random walk labelings of perfect trees,... -
False rape accusation and its complex ramifications: an analysis of Kuxabene Ubendle (pandemonium)
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Norma Masuku --- University of South Africa,Rape is a crime that inflicts deep-seated scars on the survivors, whether they are men or women. This condition of rape leaves the survivors of rape in a precarious position, with indelible scars that cannot be easily erased. A notable... -
Nominalisation and semantic shift in selected isiXhosa nouns
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Andiswa Mvanyashe --- Nelson Mandela University, South AfricaThis study addresses the process of nominalisation in isiXhosa to establish its historical development and implications on the writing and sense of words. Nominalisation, an important feature of scientific writing, enables information concentration as well as grammatical functions such as... -
Lipid profile of patients with uncontrolled type 2 diabetes mellitus at a tertiary South African hospital
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: A Parak --- Helen Joseph Hospital, South Africa R Daya --- Helen Joseph Hospital, South Africa Z Bayat --- Helen Joseph Hospital, South Africa -
The incidence of Electrocardiographic (ECG) changes suggestive of myocardial infarction in patients attending Kalafong Provincial Tertiary Hospital diabetes clinic
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: BN Xhekwani --- Kalafong Provincial Tertiary Hospital, South Africa M de Villiers --- Kalafong Provincial Tertiary Hospital, South Africa DG van Zyl --- Kalafong Provincial Tertiary Hospital, South AfricaAims: This study aims to determine the incidence of new electrocardiographic (ECG) changes suggestive of myocardial infarction (MI) in diabetic patients, both with and without typical symptoms. Additionally, it seeks to identify other ECG abnormalities indicative of the effects of... -
Factor conditions and firm resources implications on location attractiveness: A critical assessment and application in shared services industry
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Anbalagi Andy --- Universiti Malaya, Malaysia Rajenthyran Ayavoo --- Universiti Malaya, Malaysia Aida Idris --- Universiti Malaya, MalaysiaThis paper presents an integrated analytical framework by critically synthesizing the Porter-Dunning Diamond and the Resource-Based View (RBV) to evaluate the attractiveness of locations for multinational enterprises (MNEs). The framework was applied to Malaysian shared services firms to explore the... -
Bio-cryptography application for sending encrypted information using DNA cipher
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Karima Aksa --- Mostapha Ben Boulaid University, Algeria Oussama Larbi --- Mostapha Ben Boulaid University, Algeria Amira Fourar --- Mostapha Ben Boulaid University, AlgeriaCryptography-combined algorithms are obtained by a combination of algorithms, as their reliability is higher and harder to attack than the component algorithms separately. Thus, the combined algorithms are often known for classical cryptography. The goal of encryption is to make... -
An investigation on the factors influencing the success of Ethiopian tech startup companies: The ISM approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abebe Shimelis --- Addis Ababa Institute of Technology, Ethiopia Birhanu Beshah --- Addis Ababa Institute of Technology, Ethiopia Ermias Tesfaye --- Addis Ababa Institute of Technology, EthiopiaStartups play a significant role in developing innovation and the economic growth for a country. Technology-based startup businesses play a primary role in supporting economic development. The success of technology startups centres on various interrelated factors. This study identifies these... -
On the preservers of some subsets of the approximate point spectrum
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H. Benbouziane --- Faculty of Sciences DharMahraz Fes, University Sidi Mohammed Ben Abdellah, Morocco M. Ech-Chérif El Kettani --- Faculty of Sciences DharMahraz Fes, University Sidi Mohammed Ben Abdellah, Morocco I. El Khchin --- Faculty of Sciences DharMahraz Fes, University Sidi Mohammed Ben Abdellah, MoroccoLet be an infinite-dimensional complex Banach space and be the algebra of all bounded linear operators on . For , we consider the following spectral sets in approximate point-spectrum, defined by -
A note on the construction of non-spatial frames
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Abolghasem Karimi Feizabadi --- Islamic Azad University, Iran Mahmoud Manafi --- Berlin College of Business and Technology (BCBT), Germany Inderasan Naidoo --- University of South Africa (UNISA), South AfricaWe introduce a new type of ideal, which we term a ζ-ideal (zeta-ideal), on a topological space. We present examples of ζ-ideals and study their properties. ζ-Ideals are shown to provide a new paradigm for constructing non-spatial frames. Beyond that,... -
Diameter of orientations of graphs with given order and number of blocks
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: P. Dankelmann --- University of Johannesburg, South Africa M.J. Morgan --- School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, South Africa E.J. Rivett-Carnac --- University of Johannesburg, South AfricaA strong orientation of a graph G is an assignment of a direction to each edge such that G is strongly connected. The oriented diameter of G is the smallest diameter among all strong orientations of G. A block of... -
The number of human-simulated predators influences the escape behaviour of bird species in a West African protected area
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ngozi M Okafor --- AP Leventis Ornithological Research Institute, Nigeria Soladoye B Iwajomo --- University of Lagos, Nigeria Bukola DA Azaki --- University of Cape Town, South Africa Manu A Shiiwua --- AP Leventis Ornithological Research Institute, NigeriaContinuous human presence in protected and recreational areas can adversely affect wildlife. Birds perceive the approach by humans as predatory and mostly flee in response, which can be energetically costly, and leads to disruption of foraging activities and interactions with... -
The importance of Dakhla (Western Sahara) as a wintering site for Ospreys Pandion haliaetus: first systematic census
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Carlos A Torralvo --- CIMA, Spain Jorge García-Macía --- CIMA, Spain Miguel Ferrer --- CSIC, Spain Virginia Morandini --- National Museum of Natural Sciences of Madrid, CSIC, SpainThe Osprey Pandion haliaetus is a large piscivorous raptor with a world-wide distribution. European populations are often long-distance migrators, overwintering in different regions of Africa and the Mediterranean basin. Until now, citizen science and occasional reports suggested that the Dahkla... -
Urban persistence and species interactions: diverging trends in the abundance of Peregrine Falcons Falco peregrinus and Lanner Falcons F. biarmicus across southern Africa using the Southern African Bird Atlas Project
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kyle T Govender --- School of Life Sciences, University of KwaZulu-Natal, South Africa Mfundo ST Maseko --- School of Life Sciences, University of KwaZulu-Natal, South Africa Alan TK Lee --- School of Life Sciences, University of KwaZulu-Natal, South Africa Colleen T Downs --- School of Life Sciences, University of KwaZulu-Natal, South AfricaCitizen science has emerged as a powerful tool for engaging the public in ecological data collection, crucial for monitoring species’ distributions and abundance over large geographic scales and extended time periods. This study used data from the Southern African Bird... -
Breeding dynamics and threats identified at a small colony of Critically Endangered Rüppell’s Vultures Gyps rueppellii in a Ugandan Forest Reserve
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ivan Oruka --- Gulu University, Uganda Geoffrey M Malinga --- Gulu University, Uganda Stonewall S Kato --- Gulu University, Uganda Darcy Ogada --- , United States of America Derek Pomeroy --- Makerere University, UgandaThe Critically Endangered Rüppell’s Vulture Gyps rueppelli is a resident species in Uganda, with only one known breeding site in Luku Central Forest Reserve, Arua district. The natural resources in this protected forest reserve are under severe threat due to... -
Movement patterns of grey grunter Pomadasys furcatus (Pisces: Haemulidae) in the iSimangaliso Marine Protected Area, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Bruce Q Mann --- Oceanographic Research Institute, South African Association for Marine Biological Research, South Africa Stuart Dunlop --- Oceanographic Research Institute, South African Association for Marine Biological Research, South Africa Robert Kyle --- South African Association for Marine Biological Research, South Africa Gareth L Jordaan --- Oceanographic Research Institute, South African Association for Marine Biological Research, South Africa Ryan Daly --- Oceanographic Research Institute, South African Association for Marine Biological Research, South AfricaPomadasys furcatus is a relatively common inshore fish species caught in the shore-based linefishery in northern KwaZulu-Natal (KZN), South Africa, yet relatively little is known about the biology and ecology of this species. Movement patterns of this species were studied... -
Dung and carrion beetle diversity in small forest patches versus large continuous forest in the southern Cape, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Graham van Bergen --- Nelson Mandela University, South Africa Anina Coetzee --- Nelson Mandela University, South Africa Jan A Venter --- Nelson Mandela University, South Africa Francois Roets --- Stellenbosch University, South Africa Rudi C Swart --- Nelson Mandela University, South AfricaNaturally fragmented indigenous forests in the southern Cape of South Africa are particularly understudied in terms of beetle diversity. This study therefore aimed to determine whether southern Afrotemperate forest dung and carrion beetle diversity differs between continuous forest and naturally... -
A shelf-scale assessment of GLORYS and BRAN ocean reanalysis model outputs for the southern Benguela Upwelling System
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AM Kupczyk --- Fisheries and the Environment (DFFE), South Africa T Lamont --- Fisheries and the Environment (DFFE), South Africa I Halo --- Fisheries and the Environment (DFFE), South Africa CS Russo --- Fisheries and the Environment (DFFE), South Africa T Rixen --- Institute for Geology, Universität Hamburg, Germany N Lahajnar --- Institute for Geology, Universität Hamburg, GermanyThe Benguela Upwelling System, with its high variability and productivity, is challenging to monitor owing to limited in situ ocean observations. Researchers therefore often use ocean reanalysis products to simulate oceanographic conditions. We evaluated the performance of the GLORYS and... -
Case report: nutritional management of a repaired congenital diaphragmatic hernia
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: S Greyvenstein --- North-West University, South Africa RC Dolman-Macleod --- North-West University, South AfricaCongenital diaphragmatic hernia (CDH) is a rare diaphragm malformation that historically had low survival rates, but advances in care have improved outcomes. This case study discusses the outpatient management of an 8-month-old male infant who survived CDH but, due to... -
Dreamers or schemers? Fears of “town capture” in a rural South African township
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Magnus Godvik Ekeland --- Radboud University, The NetherlandsRecent public corruption scandals in South Africa have created a social landscape where trust in the motives of businesspeople and politicians has sharply declined. I argue that a by-product of this is constraints on local brokers’ potential to act as... -
Articulations of kinship and capital in Southern African anthropology: revisiting Wolpe and his critics
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Hylton White --- University of the Witwatersrand, South AfricaIn the 1970s and 1980s, the anthropology of Southern Africa produced rich concepts and debates on the relationship between kin-based domestic groups in rural peripheries and the core dynamics of capitalist development. These issues were later sidelined by the culturalist... -
The general position number under vertex and edge removal
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Pakanun Dokyeesun --- Institute of Mathematics, Physics and Mechanics, Slovenia Sandi Klavžar --- University of Ljubljana, Slovenia Jing Tian --- School of Science, Zhejiang University of Science and Technology, P.R. ChinaLet gp(G) be the general position number of a graph G. It is proved that gp(G − x) ≤ 2gp(G) holds for any vertex x of a connected graph G and that if x lies in some gp-set of G,... -
Some classes satisfying the 2-dimensional Jacobian conjecture and a proof of the complex conjecture until degree 104
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Thuy Nguyen --- São Paulo State Univesity (UNESP), BrazilWe construct a non-proper set of two variables polynomial maps and study the nowhere vanishing Jacobian condition of the Jacobian conjecture for this set. We obtain some classes of polynomial maps satisfying the 2-dimensional Jacobian conjecture for both real and... -
The Liezation of Leibniz superalgebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Behrouz Edalatzadeh --- Razi University, Iran Gelareh Eghbali Kalhor --- Razi University, Iran Ali Reza Salemkar --- Shahid Beheshti University, IranThe Schur SLie-multiplier and SAb-multiplier of Leibniz superalgebras are the Baer invariants of Leibniz superalgebras with respect to the subcategory of Lie and abelian superalgebras, respectively. In this paper, we investigate some connections between these invariants and apply them to... -
New properties of some classes of Saphar type operators
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ayoub Ghorbel --- University of Sfax, Tunisia Snežana Č. Živković-Zlatanović --- University of Niš, SerbiaThis paper explores additional properties of some classes of Saphar type operators, namely left Drazin invertible, essentially left Drazin invertible, right Drazin invertible, and essentially right Drazin invertible operators on Banach spaces, building upon the groundwork laid in [8] and... -
Characterizations of *-Ricci-Bourguignon solitons and contact Ricci-Bourguignon almost solitons
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sourav Nayak --- Indian Institute of Technology – Hyderabad, India Dhriti Sundar Patra --- Indian Institute of Technology – Hyderabad, India Hemangi Madhusudan Shah --- Harish-Chandra Research Institute, A CI of Homi Bhabha National Institute, IndiaIn this paper, we first study *-Ricci-Bourguignon solitons (in short, *-RB solitons) and find their geometric characterizations on Sasakian manifolds. We show that if a Sasakian metric g admits a non-trivial *-RB soliton, then it is -homothetically fixed null η-Einstein... -
Evaluating the implementation of prevention of mother-to-child transmission of HIV in Mwanza district hospital, Malawi
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: John Bester Kalumbi --- Peking University, ChinaIntroduction: Globally, mother-to-child transmission (MTCT) of HIV significantly contributes to paediatric HIV infections. Effective prevention of mother-to-child transmission (PMTCT) programs aim to achieve the World Health Organization’s target of less than 5% transmission rates. This study evaluated the implementation of... -
The agriculture productivity puzzle: Capital deepening and agricultural productivity in China
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Shigui Du --- Universiti Malaya, Malaysia Angathevar Baskaran --- Universiti Malaya, Malaysia V. G. R. Chandran --- Universiti Malaya, MalaysiaThis study investigates how capital deepening influences agricultural productivity among peasant households in China, considering heterogeneity across household types and regions. Using data from the China Family Panel Survey, we find that land size is negatively associated with land productivity... -
Development of electronic procurement with applicability test for the construction sector of Central Ethiopia Regional State
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Hanna Moges Dereje --- Wachemo University, Ethiopia Getnet Assefa Habete --- Wachemo University, EthiopiaIn the era of digitalization, electronic procurement is playing a major role in enhancing the productivity of organizations in the construction sector. Unfortunately, this is not as evident in Ethiopia, and the situation in regional areas is aggravated by distinct... -
Psychotherapy in South African indigenous languages: Positioning isiXhosa as a language of symbolisation
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Ntokozo Gqweta --- University of the Witwatersrand, South AfricaThe sociopolitical history of language use in South Africa is controversial and complex. This article utilises postcolonial theory to problematise the historical pattern of language use in South Africa to oppress black people. African psychology and Afrocentricity are used to... -
Reflection on students’ use of English and isiXhosa in meaning-making at a higher education institution
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Zameka Paula Sijadu --- Stellenbosch University, South AfricaTranslanguaging has emerged as an effective pedagogical method in various educational settings where the language of instruction differs from the students’ native languages. In this article, I explore the use of English and isiXhosa in teaching and learning for meaning-making... -
Characterisation of women through actions in a Tshivenḓa drama Ḽa ḓa hafha ḽi a kovhela by NE Sigogo: the contemporary democratic era
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Mmbulaheni Lawrence Mudau --- University of South Africa (UNISA), South AfricaCharacters’ actions often reveal their true nature more accurately than their words or beliefs. Authors use character actions to depict personality traits, physical appearance and relationships in literary works, employing indirect characterisation. This article aims to explore how character actions... -
Tight Toughness Bounds for Fractional (k, n)-Critical Graphs with Large n
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Wei Gao --- School of Mathematics, Hohai University, China Weifan Wang --- School of Mathematical Sciences, Zhejiang Normal University, China Yaojun Chen --- School of Mathematics, Nanjing University, ChinaA graph G is called a fractional (k, n)-critical graph if G − V ′ admits a fractional k-factor for any V ′ ⊆ V (G) with |V′| = n. The main result in this paper states the following facts:... -
Leveraging learning orientation for superior organizational performance: The role of firm-specific factors
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Henry Kofi Mensah --- Kwame Nkrumah University of Science and Technology, Ghana Gilbert Anyowuo Okyere --- Kwame Nkrumah University of Science and Technology, Ghana Emmanuel Kwabena Anin --- Kumasi Technical University, Ghana Phyllis Adjei Tuffour --- Kwame Nkrumah University of Science and Technology, GhanaExtant literature recognizes organizational learning orientation (LO) as a critical resource, yet the mechanisms and conditions under which it translates into superior performance remain underexplored and often assumed. We draw on Resource-Based View (RBV) and dynamic capability frameworks to develop... -
The impact of entrepreneurial cognition on opportunity-capitalizing capabilities and business model change: Evidence from Egypt
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Nancy Bouchra Hanna --- Amity University Dubai, UAE Erich Zahn --- University of Stuttgart, Germany Hadia H. Abdel Aziz --- Universities of Canada, Egypt Christine Madonna Kirkland --- Western Carolina University, USA R. Michael Holmes --- Florida State University, USAThis study advances the upper echelons literature by examining the (a) cognitive microfoundations of business model change and (b) intervening organizational mechanisms that help to explain the influence of strategic leaders on firm outcomes. We develop our theory by considering... -
Participant acceptability and clinician satisfaction of cognitive behavioural therapy and medication management algorithm compared with enhanced standard care for treatment of depression among youth with HIV
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Emily A Barr --- University of Texas Health Science Center at Houston, USA Kristin Baltrusaitis --- Harvard T.H. Chan School of Public Health, USA Betsy D Kennard --- University of Texas Southwestern Medical Center, USA Graham J Emslie --- University of Texas Southwestern Medical Center, USA Chelsea Krotje --- , USA Kevin Knowles --- , USA Sarah Buisson --- , USA Lauren Bergam --- Harvard T.H. Chan School of Public Health, USA Jaime G Deville --- David Geffen School of Medicine at the University of California, USA Susan L Gillespie --- , USA Melissa Shikora --- , USA Ellen Townley --- National Institute of Allergy and Infectious Diseases, National Institute of Health, USA David E Shapiro --- Harvard T.H. Chan School of Public Health, USA Larry K Brown --- Alpert Medical School of Brown University, USABackground: Primary results of the International Maternal Pediatric Adolescent AIDS Clinical Trials Network (IMPAACT) 2002 trial showed that cognitive behavioural therapy (CBT) and medication management algorithm (MMA) (COMB-R) significantly improved depression in youth with HIV (YWH) compared with enhanced standard... -
Adaptive Beta Shrinkage estimation of covariance matrices
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Henri Staal --- Department of Statistics and Actuarial Science, Stellenbosch University, South Africa Emlyn Flint --- Peresec, South AfricaAccurate estimation of the covariance matrix is essential for mean-variance portfolio optimisation, yet the sample covariance matrix is a notoriously noisy estimate, especially in high dimensions. Contemporary shrinkage methods attempt to mitigate this noise but often retain significant estimation error... -
Exploring mental health literacy and its intersection with help-seeking behaviours and gender in adolescents in the Western Cape.
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Michelle Scher --- University of South Africa, South Africa Naiema Taliep --- Institute for Social and Health Sciences, University of South Africa, South Africa Ghouwa Ismail --- Institute for Social and Health Sciences, University of South Africa, South AfricaBackground: Adolescent mental illness contributes significantly to both the global and South African burden of mental health. Mental health literacy (MHL) promotes early recognition and intervention and consequently, determines mental health-promoting behaviours. We aimed to explore adolescent MHL and its... -
Financial analysts’ information role on brand capital
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Yifei Chen --- Southwestern University of Finance and Economics, China Dan Palmon --- , USA Li Zhang --- , USASelf-created intangible assets are crucial in firm valuations but are difficult for investors to evaluate because they are not recognised in financial statements. This study examines whether sell-side financial analysts contribute to the market’s understanding of the value of brand... -
Association between HIV infection, antiretroviral therapy and dysglycaemia prevalence in black South Africans: evidence from the Durban Diabetes Study
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: D Perumal --- University of KwaZulu-Natal, South Africa FJ Pirie --- University of KwaZulu-Natal, South Africa TM Esterhuizen --- Stellenbosch University, South Africa B O’Leary --- , South Africa EH Young --- Wellcome Trust Sanger Institute, UK MI McCarthy --- University of Oxford, UK MS Sandhu --- University of Cambridge, UK AA Motala --- University of KwaZulu-Natal, South Africa -
Exploring the interplay of local language(s) and transformation to facilitate communication and change in (South) Africa
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Mogomme Alpheus Masoga --- University of the Free State, South Africa Allucia Lulu Shokane --- University of Zululand, South AfricaThis research explores local language(s) and transformation as key facilitators of a dynamic interplay between the power of communication and the capacity for change. It is argued that language serves as a multifaceted tool that not only conveys thoughts and... -
War metaphors as names for medical concepts in Sesotho newspaper HIV and AIDS communication
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Ntšoeu Seepheephe --- National University of Lesotho, LesothoThe study examines the behaviour and the ideological functions of war metaphors that are used in Sesotho newspaper communication on HIV and AIDS. Using the dynamic systems approach towards metaphor, I explore the use of these metaphors in three major... -
The amphibians and reptiles of Ngel Nyaki Forest Reserve on the Mambilla Plateau of eastern Nigeria
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Denise Arroyo-Lambaer --- Instituto de Biología, Universidad Nacional Autónoma de México, México Lauren A Scheinberg --- , USA Jens V Vindum --- , USA Walter P Tapondjou --- University of Florida, USA Morgan G Davidson --- University of Florida, USA Hazel Chapman --- University of Canterbury, New Zealand David C Blackburn --- , USAThe herpetofauna of the montane forests of Taraba State in eastern Nigeria is poorly known. During the twentieth century, two short surveys of amphibian and reptile diversity were conducted on the Mambilla Plateau, but these did not generate a comprehensive... -
On automorphism groups of the conjugacy class type Cayley graphs on the symmetric and alternating groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: O. Habineza --- University of the Western Cape, South Africa E. Mwambene --- University of the Western Cape, South AfricaThe automorphism groups of Cayley graphs on symmetric groups, Cay(G, S), where S is a complete set of transpositions have been determined. In a similar spirit, automorphism groups of Cayley graphs Cay(An , S) on alternating groups An , where... -
A note on the cube polynomials of Fibonacci and Lucas-Run graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jianxin Wei --- School of Mathematics and Statistics Science, Ludong University, P.R. ChinaThe cube polynomials of the Fibonacci-run graph and Lucas-run graph are determined, and a conjecture on the relation between them is proved. Note that Mollard (2025) [9] has considered deeply this question and obtained many general conclusions. Here we study... -
Potentials of fabric scraps management for value creation among fashion designers in South West Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Oluwafeyikemi E. Bashorun --- Olabisi Onabanjo University, Nigeria Idris O. Badiru --- University of Ibadan, Nigeria Mojisola F. Oyewole --- University of Ibadan, Nigeria Taibat T. Adebisi --- University of Ilorin, Nigeria Olufunmilayo O. Braide --- Federal University of Agriculture, Nigeria Adenike O. Lawal --- Olabisi Onabanjo University, NigeriaThe global fashion industry generates substantial fabric waste, contributing to severe environmental pollution. Fabric Scraps Management (FSM) practices offer a pathway to mitigating waste while fostering value creation. This study investigates the quantity of Fabric Scraps (FS) produced, the level... -
Measuring successful business models in Ethiopian technology business: A PLS-SEM approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abebe Shimelis --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, Ethiopia Birhanu Beshah --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, Ethiopia Ermias Tesfaye --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, EthiopiaThe development of successful business models is crucial for sustaining innovative technology firms; however, measuring business model success remains challenging due to varying economic dynamics. This study addresses this gap by developing and testing a framework to assess the success... -
Exploring the strategies shaping application programming interface development and integration in digital music platforms: A qualitative case study
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Joshua Ofoeda --- University of Professions Studies, Ghana Richard Boateng --- University of Ghana, Ghana Choudrie Jyoti --- University of Hertfordshire, UK John Effah --- University of Ghana, GhanaApplication Programming Interfaces (APIs) have become essential to contemporary software development, supporting the growth of digital platforms and ecosystems. APIs enable developers to create applications by providing functionalities that facilitate communication. Despite their importance in supporting digital platforms and ecosystems,... -
GeoHostel: Location-based recommendation of hostels in the context of higher education through geospatial technology
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nana Yaw Asabere --- Accra Technical University, Ghana Gare Lawson --- Raycom Technologies, Ghana Bernice Quartey-Papafio --- Ghana Police Service, Ghana Marcellinus Kuuboore --- University of Professional Studies, Ghana Nana Yaw Duodu --- Accra Technical University, GhanaAn efficient data management system is essential in the field of student housing to guarantee the availability of high-quality data that can make it easier to find appropriate hostels. Although recommender systems concerning hotels and tourism points of interest (POI)... -
The role of nutrition in patients with pemphigus receiving prolonged corticosteroid therapy
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Fiona Wongkar --- Udayana University/Ngoerah Hospital, Indonesia Nyoman Suryawati --- Udayana University/Ngoerah Hospital, Indonesia Agustinus I Wayan Harimawan --- Udayana University/Ngoerah Hospital, Indonesia Made Candra Wijanadi --- Udayana University/Ngoerah Hospital, IndonesiaPemphigus is a rare autoimmune blistering disorder that affects the skin and mucous membranes, characterised by acantholysis due to IgG-mediated autoantibody interference with desmoglein-mediated keratinocyte adhesion. Despite advances in immunosuppressive therapy, managing pemphigus remains a challenge. Both disease pathology and... -
Assessment of HIV/AIDS-related stigma and knowledge gaps among healthcare providers in Egypt
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Salma M. A. Mansour --- Egyptian Intellectual Property Authority, Egypt Rahma Mohamed --- Cairo University Hospitals HIV Clinic, Cairo University, Egypt Moses Shongwe --- , United Kingdom Eman Raslan --- , Ahmed Cordie --- Cairo University Hospitals HIV Clinic, Cairo University, Egypt Mohamed AbdAllah --- National Research Center, Egypt Shadw Osama Helal --- Cairo University Hospitals, Egypt Kareem Essam Aiad --- Specialised Medical Centers, Egypt Salma Ghoneim --- Cairo University, Egypt Mohamed Khaled Elshirbeny --- Nasser Institute Hospital for Research and Treatment, Specialised Medical Centers, Egypt Mohamed Gamal Ahmed --- Elsahel Teaching Hospital, Egypt Saeed Soliman --- ,Background: Stigma and discrimination against people living with HIV (PLHIV) in healthcare settings are significant barriers to achieving Egypt’s 95–95–95 targets and ending AIDS as a public health threat by 2030. Misconceptions among healthcare professionals (HCPs) can negatively affect testing,... -
The integration of physical and digital experiences in ecotourism
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: I Nengah Subadra --- University of Triatma Mulya, IndonesiaThe integration of physical and digital experiences in ecotourism is reshaping ecotourism by enhancing visitor engagement and advancing sustainability practices. This study employs a grounded theory approach to investigate the impact of technologies such as augmented reality, virtual reality and... -
A Portuguese urban vegetable garden under the gaze of hospitality
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Cynthia Luderer --- Social Sciences Institute, University of Minho, PortugalThis work concerns an urban vegetable garden in the north-west of Portugal and aims to describe the hospitality surrounding this environment. This study resulted from a two-year field investigation, which was methodologically driven by ethnography and supported by the anthropology... -
Pleistocene Hamerkop Scopus umbretta (Scopidae) tracks and other new avian ichnosites on South Africa’s Cape south coast
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Charles W Helm --- Nelson Mandela University, South Africa Given Banda --- Nelson Mandela University, South Africa Andrew S Carr --- University of Leicester, United Kingdom Hayley C Cawthra --- Nelson Mandela University, South Africa Jan C de Vynck --- Nelson Mandela University, South Africa Mark G Dixon --- Nelson Mandela University, South Africa Alex van den Heever --- Magazine Hill, South AfricaEight Pleistocene avian ichnosites have been identified in aeolianites on South Africa’s Cape south coast, adding to the 41 sites previously identified. All the newly identified sites are thought to fall within the age range of marine isotope stages (MIS)... -
Unveiling Kianda: a multifaceted symbol in Luanda, Angola
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Kyeri Kim --- Hankuk University of Foreign Studies Global Campus, Republic of KoreaThis article explores how Kianda, an (un)official urban symbol of Luanda, the capital of Angola, is rooted in the cosmological worldview of residents of Luanda’s Cabo Island (Ilha do Cabo, also known as Ilha de Luanda) and how it has... -
Listening to the voices of Namibia’s recreational anglers to improve shore-based fishery resource use and management
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NMC Gusha --- University of Namibia, Namibia AM Veii --- University of Namibia, Namibia NM Nghipangelwa --- University of Namibia, Namibia AS Shikongo --- University of Namibia, Namibia CS Bova --- Rhodes University, South Africa A Kanyimba --- University of Namibia, Namibia GH Engelhard --- Fisheries and Aquaculture Science (Cefas), United Kingdom K Hyder --- Fisheries and Aquaculture Science (Cefas), United Kingdom B Snow --- Scottish Association for Marine Science (SAMS), United Kingdom WM Potts --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa MR Wilhelm --- University of Namibia, NamibiaIn most fisheries, the traditional centralised, top-down management approach is still prevalent despite its limited success. While a bottom-up ecosystem-based approach is increasingly preferred, a shift in focus from purely ecological considerations to a socio-ecological system approach is necessary. The... -
Catch trends and population status of the leopard whipray Himantura leoparda (family Dasyatidae) off the east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BQ Mann --- Oceanographic Research Institute (ORI), South Africa R Daly --- Oceanographic Research Institute (ORI), South Africa D Parker --- University of Queensland, Australia GL Jordaan --- Oceanographic Research Institute (ORI), South Africa G Cliff --- KwaZulu-Natal Sharks Board, South Africa N Nkabi --- KwaZulu-Natal Sharks Board, South Africa R Kyle --- South African Association for Marine Biological Research (SAAMBR), South Africa R Bennett --- Wildlife Conservation Society, South AfricaThe leopard whipray Himantura leoparda (family Dasyatidae) is globally assessed as Endangered on the IUCN Red List of Threatened Species owing to the species’ inherent vulnerability and declining population trends. In this study we assessed the population found off the... -
Influence of the Benguela Upwelling System on the genetic connectivity of blacktail seabream Diplodus capensis across southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: WF Olivier --- Genetics and Microbiology, University of Pretoria, South Africa WM Potts --- Rhodes University, South Africa A-R Childs --- Rhodes University, South Africa C Santos --- Agostinho Neto University, Angola PW Shaw --- Aberystwyth University, R Henriques --- Genetics and Microbiology, University of Pretoria, South AfricaOceanographic features such as upwelling cells and currents contribute to shaping the evolutionary history of marine fishes, including species that may be important socio-economic resources. However, the impacts of these barriers are often cryptic and may change, particularly in a... -
Horizon scanning to identify priority research questions for the South African marine shore-based recreational fishery
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Hewett --- Rhodes University, South Africa CS Bova --- Rhodes University, South Africa EC Butler --- Rhodes University, South Africa A-R Childs --- Rhodes University, South Africa MW Farthing --- Rhodes University, South Africa BQ Mann --- Rhodes University, South Africa JB Mann-Lang --- Rhodes University, South Africa AC Winkler --- Rhodes University, South Africa K Hyder --- Centre for Environment Fisheries and Aquaculture Science, United Kingdom WM Potts --- Rhodes University, South AfricaThe marine shore-based recreational fishery (MSBRF) is the largest sector of the South African linefishery. The high rate of participation, widely dispersed effort, the diversity of motivations, attitudes and perceptions of its participants, and the large number of target species... -
Individual variability in the thermal limits of juvenile dusky kob Argyrosomus japonicus from a permanently open estuary
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Frachet --- Rhodes University Department of Ichthyology and Fisheries Sciences, South Africa A-R Childs --- Rhodes University Department of Ichthyology and Fisheries Sciences, South Africa AC Winkler --- Rhodes University Department of Ichthyology and Fisheries Sciences, South Africa MW Farthing --- Rhodes University Department of Ichthyology and Fisheries Sciences, South Africa CD Hempel --- Rhodes University Department of Ichthyology and Fisheries Sciences, South Africa WM Potts --- Rhodes University Department of Ichthyology and Fisheries Sciences, South AfricaGlobally, fish are facing the pressure of increasing thermal variability, which challenges the physiological capacity and resilience of species at the level of the individual, population and community. As transition zones, estuarine ecosystems are becoming increasingly thermally dynamic, which affects... -
Pastures established on rehabilitated surface coal mined land: an assessment of forage production and implications for livestock grazing
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Emmanuel Nkosinathi Cele --- University of Pretoria, South Africa Monde Rapiya --- University of Pretoria, South Africa Wayne Sanders --- University of Pretoria, South Africa Wayne Truter --- Enterprises University of Pretoria, South AfricaCurrently, land rehabilitation best practice in South Africa is to revegetate ameliorated soil with grass mixtures. These grasses have valuable grazing potential that can deliver great benefits to livestock farmers. However, due to paucity of research and published findings, the... -
The moving structure of reality in Gadamer’s method of interpretation: A philosophy of life in the making of history
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Andrew Fuyarchuk --- Yorkville University, CanadaThe reorientation in hermeneutics from matters of textual interpretation and historically effected consciousness to “hermeneutic realism” and immanent metaphysics has created questions about our place in both history and nature. They are as mutually exclusive of one another as linear... -
Changing midlife tropes: A transcendence into epiphany
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Louisa Niehaus --- University of South Africa, South Africa Maria Papaikonomou --- University of South Africa, South AfricaMidlife is often stereotyped as a time of turbulence, angst and chaos, marked by inappropriate behaviours, broken marriages, infidelity and destructive changes. However, this article aims to challenge these stereotypes and present a different perspective. It argues that midlife is... -
Bounds on the spread and trace norm of the adjacency matrix of a graph
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bilal Ahmad Rather --- Shandong University of Technology, China Hilal A. Ganie --- Government Degree College Uri, India M. Imran --- Prince Mohammad Bin Fahd University, Saudi ArabiaThe trace norm of the adjacency matrix A(G) of a graph G is the sum of absolute values of the eigenvalues of A(G) and it is well-known in the literature under the name energy (graph energy) of G. The spread... -
Approximation and Compactness
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: E. Colebunders --- Vrije Universiteit Brussel, België R. Lowen --- Universiteit Antwerpen, BelgiëIn approach theory convergence is described by means of limit and adherence operators acting on filters or ultrafilters. The value of the limit resp. adherence operator on an (ultra)filter in a point x is interpreted as the distance that the... -
Buried voices, hidden languages: The (in)visibility of indigenous South African languages in the South African Journal of African Languages (SAJAL) from 1994 to 2023
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Mlamli Diko --- University of South Africa, South AfricaThe South African Journal of African Languages was officially established in 1981 to advance the visibility and intellectualisation of indigenous South African languages as outlined in its aims and scope. Regrettably, greatly entrenched imperialist ideologies obstruct these languages’ comprehensive visibility... -
Mycorrhizal fungi in Acacia mearnsii plantations and native fragments of the Pampas biome, southern Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Etienne Winagraski --- Universidade Federal do Paraná, Brazil Celso Garcia Auer --- Universidade Federal do Paraná, Brazil Pedro Henrique Riboldi Monteiro --- Universidade Federal do Paraná, Brazil Antônio Rioyei Higa --- Universidade Federal do Paraná, Brazil Glaciela Kaschuk --- Universidade Federal do Paraná, BrazilBlack wattle (Acacia mearnsii) was introduced to southern Brazil in the 1930s without any documented history of microbial inoculation. This study tested the hypothesis that black wattle introduction does not harm indigenous arbuscular mycorrhizal fungi (AMF) communities or reduce soil... -
Paclobutrazol application in eucalypt clones promotes morphological changes without affecting the physiological characteristics
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Jenifer Nathanna Marcelino Moura --- Universidade Federal do Acre, Brazil Paulo André Trazzi --- Universidade Federal do Acre, Brazil Elsilene Thaynara Melo Sales --- Universidade Federal do Acre, Brazil Marcio Oliveira Martins --- Universidade Federal do Acre, Brazil Keveny da Silva e Silva --- Universidade Federal do Acre, Brazil Gabriel Melo Mustafa --- Universidade Federal do Acre, Brazil Barbara Valentim Oliveira --- Universidade Federal do Acre, BrazilThe aim of this study was to investigate the morphophysiology of young eucalypt clones in response to different water regimes and paclobutrazol (PBZ) concentrations applied to the soil. The experiment was conducted in a greenhouse environment at the Federal University... -
An investigation of three machine learning models using UAV derived photogrammetry for detecting and measuring tree stumps
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Alan Hubbard --- University of Stellenbosch, South Africa Simon Ackerman --- University of Stellenbosch, South Africa Bruce Talbot --- University of Stellenbosch, South AfricaAccurately quantifying stump volume on post-harvested sites is required to assess potential volume gains for biomass utilisation. The relatively uniform distribution and shape of stumps across such sites makes them well-suited for detection using machine learning (ML) algorithms. Recent developments... -
Nehari manifold approach for a singular multi-phase variable exponent problem
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mustafa Avci --- Athabasca University, CanadaThis paper is concerned with a singular multi-phase problem with variable singularities. The main tool used is the Nehari manifold approach. Existence of at least two positive solutions with positive-negative energy levels are obtained. For the illustration of the main... -
An efficient hybrid transform algorithm for image compression using a matrix rank-based optimization approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: D. Linett Sophia --- Erode Sengunthar Engineering College, India S. Kavitha --- Nandha Engineering College, IndiaThe digital images play a major part in variety of fields such medical, satellite, remote sensing, etc. Advancements in information technology have resulted in a huge number of digital images to be stored and transmitted. Since the demand for storage... -
Reduced Blue Crane Grus paradisea breeding productivity in intensive agricultural landscapes
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Christie A Craig --- FitzPatrick Institute of African Ornithology, Department of Biological Sciences, University of Cape Town, South Africa Bradley K Gibbons --- African Crane Conservation Programme, Endangered Wildlife Trust/International Crane Foundation, South Africa Tanya Smith --- African Crane Conservation Programme, Endangered Wildlife Trust/International Crane Foundation, South Africa Glenn I Ramke --- African Crane Conservation Programme, Endangered Wildlife Trust/International Crane Foundation, South Africa Peter G Ryan --- FitzPatrick Institute of African Ornithology, Department of Biological Sciences, University of Cape Town, South AfricaWe compare Blue Crane Grus paradisea breeding productivity in the Western Cape wheatlands in Overberg and Swartland (2018–2021), Karoo (2009–2011) and eastern grasslands (2009–2011 and 2013). Productivity was higher in the grasslands (0.95 fledglings/attempt, 95% CI = 0.86–1.30, n =... -
Bird community composition across a land use gradient in the eastern Democratic Republic of Congo
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Regine C Tabe Tiku --- Konrad Lorenz Institute of Ethology, University of Veterinary Medicine, Austria Samuel EI Jones --- Department of Biological Sciences, University of Cyprus, Cyprus Malange NF Elikwo --- Department of Microbiology and Parasitology, University of Buea, Cameroon Kowo Cyril --- Department of Microbiology and Parasitology, University of Buea, Cameroon Steve Ngoy --- Centre de Suiveillance de la Biodiversite, Universite de Kisangani, Democratic Republic of the Congo Virginia Zaunbrecher --- Center for Tropical Research, University of California, United States Ravinder NM Sehgal --- Department of Biology, San Francisco State University, United StatesCocoa agroforestry expansion is widespread in eastern Democratic Republic of Congo, posing a significant threat to the integrity of protected areas. Despite this threat, the impact of this expansion on forest bird communities remains largely unexamined. This study investigated bird... -
Translation of personification into isiNdebele and isiZulu in selected Bible texts
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Nomsebenzi Johanna Malele --- College of Human Sciences,Translating figures of speech can be a daunting task particularly to people who are not skilled in translation. The purpose of this article was to examine whether personification as a figure of speech was successfully translated from the original Hebrew... -
Discursive exploration of self-adulation in selected songs of Ọláwálé Ọlọ́fọ̀ọ́rọ̀ (a.k.a Brymo)
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Adetayo Adebayo --- University of Ibadan, NigeriaSelf-adulation, a term that encapsulates the attitude of possessing a high opinion of oneself or one’s importance, in Nigerian popular music (NPM) has interested Nigerian scholars. With the paucity of studies on Brymo, a Nigerian music artist who fuses Afrobeat... -
Global solutions for the time-space fractional rotating magnetohydrodynamic equations in Besov spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jinyi Sun --- College of Mathematics and Statistics, P.R. China Yuanwei Mai --- College of Mathematics and Statistics, P.R. China Yatao Li --- Jiangxi University of Finance and Economics, P.R. ChinaThis paper is devoted to the time-space fractional rotating magnetohydrodynamic equations in Besov spaces. By exploiting the interweaving action of the smoothing effects of the fractional Laplacian dissipation and dispersive effects of the Coriolis force involving with the time-fractional evolution... -
Effects of grazing regimes on ground-dwelling small mammal distribution and abundance in rangelands at Gravelotte, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: AW Bio Keri --- The Regional Post-Graduate Training School on Integrated Management of Tropical Forests and Lands (ERAIFT), University of Kinshasa, Democratic Republic of the Congo J De Groot --- Southern African Wildlife College, South Africa PM Hamming --- Southern African Wildlife College, South Africa S Ntie --- Université des Sciences et Techniques de Masuku (USTM), Gabon SGA Nago --- Université de Parakou (UP), Benin EBO Ahouandjinou --- Federal University of Technology, Nigeria AJ Gardiner --- Southern African Wildlife College, South AfricaUnderstanding the impact of grazing on wildlife communities is essential for implementing sustainable grazing practices that promote biodiversity conservation. This study investigated the effects of three grazing regimes (Wildlife and Cattle Grazing, Traditional Rotational Selective Grazing, and Holistic Planned Grazing... -
Measuring adaptive decision making in livestock grazing systems
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Jenna M Likins --- Department of Rangeland, Wildlife and Fisheries Management, Texas A&M University, College Station, USA Jason E Sawyer --- East Foundation, USA Urs P Kreuter --- Department of Ecology and Conservation Biology, Texas A&M University, College Station, USAAdaptive management is essential for managing complex grazing systems under environmental uncertainty. However, its implementation in grazing operations is inconsistently defined and measured. This study addresses this limitation by developing and validating the Adaptive Management Index (AMI), a standardised instrument... -
Transhumance within private land conservation areas: perspectives from pastoralist landowners in rural Kenya
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Simon M Thiong’o --- Centre for Events, Tourism, and Hospitality Management, Carnegie School of Sport, Leeds Beckett University, Headingley Campus, UKPastoralism in Kenya’s arid and semi-arid regions supports about 10 million indigenous people. While general studies on pastoralist livelihoods exist, limited research explores these dynamics within privately governed landscapes. This study critically examines how land tenure complexities within private land... -
Spatiotemporal shape variation in sagittal otoliths of spotted grunter Pomadasys commersonnii in South African estuaries
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: V Coetzee --- Department of Biological Sciences, University of Cape Town, South Africa S Kerwath --- Department of Biological Sciences, University of Cape Town, South Africa S Lamberth --- Department of Forestry, Fisheries and the Environment (DFFE), South Africa D Parker --- Department of Biological Sciences, University of Cape Town, South AfricaThe morphological structure of fish otoliths is under dual regulation by genetic and environmental factors, and has been successfully used to aid stock delineation. This study examined whether differences in sagittal otolith shape outlines could be used to delineate potential... -
Effect of entrepreneurial orientation on sustainable financial practices: The roles of dynamic capabilities and institutional conditions
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Divine Atinyo --- University of Cape Coast, Ghana George Tweneboah --- University of Cape Coast, GhanaEntrepreneurial orientation (EO) is increasingly recognized as a vital strategic factor, particularly in volatile business environments. While EO can potentially drive superior sustainable financial practices (SFP), there remains a gap in understanding the underlying mechanisms and contextual factors that complement... -
Knowledge sharing, innovation capability, and organizational performance in emerging markets: Empirical evidence from SMEs in Ghana
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Asiamah Yeboah --- Kumasi Technical University, GhanaDespite its importance, knowledge sharing as a driver of organizational performance in small and medium-sized enterprises (SMEs) within emerging markets has received limited scholarly attention. Grounded in the resource-based view and knowledge-based view of the firm, this study investigates the... -
The first record of the tropical tramp millipede Orthomorpha coarctata (de Saussure, 1860) in Cameroon (Diplopoda: Polydesmida: Paradoxosomatidae)
Item type: Journal Article • Journal: African Zoology • Authors: Peter Decker --- , Germany Armand Richard Nzoko Fiemapong --- Laboratoire de Zoologie, Université de Yaoundé I, Cameroon Hans S Reip --- Senckenberg Museum of Natural History Görlitz, Germany Samuel Didier Makon --- Laboratoire de Zoologie, Université de Yaoundé I, Cameroon Paul Serge Mbenoun Massé --- Laboratoire de Zoologie, Université de Yaoundé I, CameroonThis study reports the first record of the flat-backed millipede Orthomorpha coarctata (de Saussure, 1860) in Cameroon, and the second for Central Africa. Specimens were collected between 2014 and 2025 at nine localities in anthropogenic habitats, such as agricultural fields... -
Seasonal consumption of Thamnochortus spicigerus (Restionaceae) by eland is associated with plant sex and nutrient status
Item type: Journal Article • Journal: African Zoology • Authors: Petro Botha --- Department of Botany and Zoology, Stellenbosch University, South Africa Bruce Anderson --- Department of Botany and Zoology, Stellenbosch University, South AfricaHistoric distributions of large herbivores in the Fynbos Biome remain poorly described and, despite ongoing reintroductions, their dietary strategies and forage selection in the Fynbos Biome are understudied. We monitored an introduction of eland into Cape Flats Dune Strandveld vegetation,... -
A private company perspective of the audit expectation gap
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Ané Church --- School of Accountancy, University of the Free State, South Africa Frans E. Prinsloo --- School of Accountancy, University of the Free State, South Africa -
With an Effluent Eye: Migrancy, Excess, and Belonging in Jane Bryce’s Zamani
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Sam Dennis Otieno --- The Pennsylvania State University, USAThis article examines Jane Bryce’s Zamani (2023) through the conceptual lens of the effluent eye, drawing on Rosemary Jolly’s (2023) theorization of effluence alongside Achille Mbembe’s (2019) necropolitics and Mahmood Mamdani’s (2020) critique of ethnic nationalism. I argue that Zamani... -
Cognitive Narratology and Disability in Taha Hussein’s Canonical Literary Works
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Shahd Alshammari --- Gulf University for Science and Technology, Kuwait Encarnación Sánchez Arenas --- University of Seville, SpainThe seminal works of Taha Hussein, the Egyptian writer who was sobriquetically labelled ‘The Dean of Arabic Literature’, include the autobiographical trilogy, The Days, and his novel, The Call of the Curlew. Both present complementary explorations of disability narratives and... -
The Frank graph
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Efruz Özlem Mersin --- Aksaray University, Turkey Ayşe Dilek Maden --- Selcuk University, Turkey Mustafa Bahşi --- Aksaray University, TurkeyThis paper introduces the Frank graph, a special weighted digraph with self-loops whose adjacency matrix corresponds to the Frank matrix, a special Max matrix. We derive bounds for the spectral radius and energy of the graph and illustrate these results... -
On the {2}-domination number of rooted product graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Cabrera-Martínez --- Universidad de Córdoba, Spain A. Conchado Peiró --- Universitat Politècnica de València, Spain J.M. Rueda-Vázquez --- Universidad de Córdoba, SpainLet G be a nontrivial graph with vertex set V (G). A function f : V (G) → {0, 1, 2} is called a {2}-dominating function on G if ∑ u ∈NG [v] f(u) ≥ 2 for every v... -
Cauchy approachable functions and spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Pratulananda Das --- Department of Mathematics, Jadavpur University, India Sujan Khna --- Department of Mathematics, Jadavpur University, India Sudip Kumar Pal --- Department of Mathematics, Diamond Harbour Women’s University, IndiaIn the context of functions between metric spaces, we introduce a new class of functions which we called Cauchy approachable function which happens to lie between the classes of continuous functions and Cauchy regular functions. A significant characteristic of these... -
Delta-shocks and vacuums as flux-approximation limit of solutions to the Aw-Rascle model with time-dependent source
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mengqi Cui --- Department of Mathematics, Yunnan Normal University, P.R. China Shuai Fan --- Department of Mathematics, Yunnan Normal University, P.R. China Yu Zhang --- Department of Mathematics, Yunnan Normal University, P.R. ChinaThe flux-approximation limit of solutions to the Aw-Rascle (AR) traffic flow model with time-dependent source is considered. First, the Riemann problem containing flux perturbation and generalized Chaplygin gas (GCG) pressure is solved. Then, it is proved that, as the flux...
