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Timber Harvesting in South Africa—Past, Present, Future

Item type: Journal Article • Journal: South African Forestry Journal • Authors: P.W. Warkotsch --- Faculty of Forestry,

After a short description of South African timber harvesting practices in the past, the present situation in terms of machine population and the current harvesting and extraction methods is discussed in more detail.

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An Evaluation of the Use of “Gentan” Probabilities in Forestry Planning

Item type: Journal Article • Journal: South African Forestry Journal • Authors: JohnH. Randall --- Department of Biometry, South Africa Klaus von Gadow --- Department of Forest Science, South Africa

An evaluation of Suzuki's concept of Gentan probabilities is presented. Model fitting is discussed in some detail. It is shown that the Gentan method is suitable only for forests that are at least close to normality.

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Site Evaluation in Black Wattle with Special Reference to Soil Factors

Item type: Journal Article • Journal: South African Forestry Journal • Authors: A. P.G. Schönau --- Silviculture Section, Institute for Commercial Forestry Research, South Africa W. J.K. Aldworth --- Silviculture Section, Institute for Commercial Forestry Research, South Africa

Together with climate, soil characteristics are the most important factors affecting tree growth. However, the attempts in many site evaluation studies to establish a direct relationship between soil factors and tree growth have not been very successful, the exception being...

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Cable Yarding in Southern Africa: An Analysis of its Productivity and Possible Procedure for its Improvement

Item type: Journal Article • Journal: South African Forestry Journal • Authors: R.M. de Laborde --- Institute for Commercial Forestry Research, South Africa

The demand for timber in southern Africa is increasing and this is resulting in the afforestation of areas which require cable yarding when harvested. The demand for cable yarders, essentially fixed skylines, is therefore increasing rapidly. Stress is being placed...

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The Impact of Harvesting Operations on Timber Quality: Causes and Remedies

Item type: Journal Article • Journal: South African Forestry Journal • Authors: Walter Warkotsch --- Forest Engineering Technology, Faculty of Forestry,

Forests are devastated daily to satisfy the world's timber demands. Tropical forests throughout the world are exploited and endangered. An obligation therefore exists to avoid damage to timber and minimise waste wherever possible.

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Preparation of Moulding Resins from Inexpensive By-products: Substitution of Phenol Novolac with Unmodified Lignin in Moulding Resin and its Effect on Physical Properties of Mouldings

Item type: Journal Article • Journal: South African Forestry Journal • Authors: R.E. Ysbrandy --- Department of Wood Science, Republic of South Africa G. F.R. Gerischer --- Department of Wood Science, Republic of South Africa R.D. Sanderson --- , Republic of South Africa

Mouldings of 25% resin content were prepared. Substitution of phenol novolac with various ratios of unmodified bagasse lignin was investigated. The effect of lignin incorporation on tensile and dimensional stability properties of mouldings was then studied. Low levels of lignin...

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A model for predicting livemass gain from stocking rate and annual rainfall

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: D.I. Bransby --- Department of Grassland Science,

The relationship between livemass gain and stocking rate was established for young beef animals grazing kikuyu and Coastcross II pastures in each of five grazing seasons. The annual rainfall within these seasons ranged from 506 mm to 990 mm. Relationships...

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Long term nitrogen and phosphorus application to veld

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: C.H. Donaldson --- , G. Rootman --- , D. Grossman --- Department of Agriculture,

The long term effects of a 5N x 3P factorial fertilizer application trial on hay yields, botanical composition and soil properties of veld are presented. Significant increases in hay yields were recorded during most years. There was a strong correlation...

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A model for predicting long term economic optimum stocking rates for beef cattle grazing dryland pastures

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: D.I. Bransby --- Department of Grassland Science,

Previous models relating profit to stocking rate have not taken into account annual variation in rainfall. A model is developed here to allow for this factor. The frequency distribution of annual rainfall is used to demonstrate how the stocking rate...

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Evaluation of the grazing potential of grass species in Tarchonanthus veld of the northern cape¹

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.H. Fourie --- Department of Agriculture (Free State Region), D.P.J. Opperman --- Department of Pasture Science, B.R. Roberts --- Department of Pasture Science,

The grazing value of the seven most prominent grass species in Tarchonanthus‐limeveld was investigated from 1977 to 1981.

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Performance of Medicago sativa under dryland conditions on the eastern Highveld

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: N F G Rethman --- Department of Plant Production, J J Odendaal --- Department of Agriculture & Water Supply, Transvaal Region, C C De Witt --- Department of Agriculture & Water Supply, Transvaal Region,

Increased livestock numbers and improved animal performance based on dryland lucerne pastures requiring little or no nitrogenous fertilizer have been demonstrated to be feasible on the eastern Highveld. With large scale planting of lucerne‐based pasture (25% of arable land) 350...

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Ordination of land types in the karoo region into reasonably homogeneous farming areas based on vegetation and environmental factors¹

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: M. Vorster --- Department of Agriculture and Water Supply (Karoo Region), H.R. Becker --- Department of Agriculture and Water Supply (Karoo Region), J.S. Greyling --- Department of Agriculture and Water Supply (Karoo Region), O.J.H. Bosch --- Department of Botany,

The 291 preliminary land types in the Karoo Region formed the basis for the demarcation of the 144 Reasonably Homogeneous Farming Areas (RHFAs). The land types were firstly reduced to 23 Floristic Climatic Regions (FCRs) according to character species for...

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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...

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Seasonal changes in the quality of diet selected by cattle grazing the natal sour sandveld

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: P.J. O'Reagain --- Dept. Agriculture and Water Supply, M.T. Mentis --- Centre for Resource Ecology,

Seasonal changes in dietary quality were measured using steers fistulated at the oesophagus. From spring through to winter, crude protein (CP), in vitro digestibility (IVD) and leaf percentage in the diet declined significantly while percentage dead material increased significantly. Consumption...

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The effect of continuous and rotational grazing of sourveld on the selection of plant fractions by simmentaler heifers

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: U.P. Kreuter --- Department of Grassland Science, N.M. Tainton --- Department of Grassland Science,

In a grazing trial conducted at the Kokstad Agricultural Research Station, the selection of six plant fractions by cattle grazing sourveld was investigated. Relations between the selectivity of the cattle and the dry matter digestibility (DMD) and crude protein (CP)...

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The response of Acacia karroo plants to defoliation by hand compared to defoliation by goats

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: W.R. Teague --- ,

The leaf and shoot growth of Acacia karroo plants defoliated by goats was compared to that of plants in which leaf only or leaf plus shoot‐tips were removed by hand, to simulate goat browsing.

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Voorlopige evaluasie van sporobolus fimbriatus as aangeplante weiding in die sentrale oranje‐vrystaat

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: L.G. du Pisani --- , I.W. Knight --- ,

Die potensiaal van Sporobolus fimbriatus as aangeplante weiding is ten opsigte van relatiewe groeitempo, kumulatiewe groei, droëmateriaalproduksie, weikapasiteit, blaar : stingel verhouding en kwaliteit (ruproteïen en verteerbaarheid) geëvalueer.

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Effect of intensity of defoliation by goats at different phenophases on leaf and shoot growth of acacia karroo hayne

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: W.R. Teague --- , B.H. Walker --- Botany Department,

Defoliation by goats (leaves plus shoots) during the growing phenophases resulted in a considerable stimulation of leaf and shoot growth relative to non‐defoliated plants. The response differed considerably depending on the intensity and phenophase of defoliation. Plants were most susceptible...

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The effect of fire on germination in five common veld grasses

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: P.J.K. Zacharias --- Department of Grassland Science, N.M. Tainton --- Department of Grassland Science, C. Oberholster --- Department of Grassland Science,

The effect of fire on the germination of Themeda triandra, Heteropogon contortus, Panicum maximum, Aristida junciformis and Spowbolus africanus was investigated. Seeds exposed directly to the fire were destroyed in all species. The germination of seeds buried (7 to 9...

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The quality of herbage ingested by cattle in rotationally grazed semi‐arid grassveld 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), Republic of South Africa

Oesophageal fistulated steers were used to sample herbage daily during periods of occupation on veld in good and moderate condition. Forage quality was assessed in terms of in vitro dry matter digestibility and digestible crude protein. The quality of herbage...

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An ocular technique for estimating utilization of karoo bushes

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: F.O. Hobson --- Department of Agriculture, Republic of South Africa

A subjective technique for estimating utilization of karoo bushes is evaluated and guidelines for its use are proposed. Taking the average utilization from estimates on 30–40 bushes, 20% differences in utilization could be distinguished as significant ‐ even when different...

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Voluntary intake of several planted pastures by sheep and an assessment of NDF and IVDOM as possible predictors of intake

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: H.H. Meissner --- Department of Livestock Science, Republic of South Africa W.A. van Niekerk --- Department of Livestock Science, Republic of South Africa E.B. Spreeth --- Department of Livestock Science, Republic of South Africa H.H. Köster --- Department of Livestock Science, Republic of South Africa

The aim was to study the quality and quantity of pasture selected by sheep on various planted pastures. A further aim was to assess NDF and IVDOM as easy measurable parameters for use in equations to predict intake. Pasture samples...

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The response of Acacia karroo plants to defoliation of the upper or lower canopy

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: W.R. Teague --- , Republic of South Africa

The response of Acacia karroo trees to defoliation of either the upper or lower canopy only, was compared experimentally with that of plants whose whole canopies had been defoliated at a range of defoliation levels. These plants were very sensitive...

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Patterns of selection of Acacia karroo by goats and changes in tannin levels and in vitro digestibility following defoliation

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: W.R. Teague --- , Republic of South Africa

Patterns of browse selection by Boer goats in a representative Acacia karroo community in the eastern Cape were studied. The rate of intake of browse was positively related to the leaf mass per unit length of the shoot. The ease...

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The effects of continuous and rotational grazing of sourveld on the quality of herbage selected by Simmentaler heifers

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: U.P. Kreuter --- Department of Grassland Science, Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South Africa

A grazing trial was conducted at the Kokstad Agricultural Station to compare the dry matter digestibility (DMD) and crude protein content (CP) of diets selected by four fistulated cattle which were continuously and rotationally grazing sourveld. Two stocking rates of...

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Floristiese verskille tussen ekotope in die Potchefstroom distrik¹

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: AnnelieS. de Beer --- Departement Landbou en Watervoorsiening, Republiek van Suid‐Afrika G.K. Theron --- Departement Plantkunde, Republiek van Suid‐Afrika G.J. Bredenkamp --- Departement Plantkunde, Republiek van Suid‐Afrika

Floristic differences between eeotopes in the Potchefstroom area. Eeotopes are generally used, in the Highveld Region, as a basis for the division of camps when planning a farm. The possible floristic differences which support this ecological approach, as well as...

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The effect of veld condition on the quality of diet selected by cattle grazing the Natal Sour Sandveld

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: P.J. O'Reagain --- Department of Agricultural Development, Republic of South Africa M.T. Mentis --- Department of Botany, Republic of South Africa

The quality of diet selected by steers fistulated at the oesophagous was related to veld condition in a simulated rotational grazing system on the Natal Sour Sandveld. Six camps, ranging in veld condition score from 8,5 to 53%, were grazed...

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Evaluation of three techniques for measuring grass leaf area¹

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: C.W. Daphne --- Department of Grassland Science, Republic of South Africa P.J.K. Zacharias --- Department of Grassland Science, Republic of South Africa A.C. Hansen --- Department of Agricultural Engineering, Republic of South Africa

Three leaf area measuring techniques were compared. Although statistical considerations received priority, practical issues such as economy of time, labour and finance, were also evaluated. The electronic light interception planimeter and the squared grid method (SGM) are already in common...

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The value of subtropical grass pastures for use as foggage on the eastern Transvaal Highveld

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: N.F.G. Rethman --- , Republic of South Africa C.C. de Witt --- , Republic of South Africa

The utilization of frosted herbage of Pennisetwn clandestinwn, Paspalum notation, Digitaria eriantha, Cynodon sp. and Chloris gayana by Merino wethers during the winter confirmed the potential of this practice as an alternative winter feeding strategy under Highveld conditions. P. clandestinwn...

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The production of four ryegrass cultivars oversown at various seeding rates into irrigated kikuyu

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: D.I. Harris --- Department of Agricultural Development, Republic of South Africa P.E. Bartholomew --- Department of Agricultural Development, Republic of South Africa

An irrigated kikuyu pasture was oversown, in late March, with four ryegrass cultivars at four seeding rates at Cedara (Natal Mistbelt) and n'Tabamhlope (Highland Sourveld). The oversowing procedure shows promise with the cultivars producing well at both sites. There were...

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Effect of enzyme additives on kikuyu silage quality

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: M.C.V. de Figueiredo --- Department of Agricultural Development, Republic of South Africa

Chopped kikuyu (Pennisetum clandestinum) grass of low digestibility and low in non‐structural carbohydrates was treated with three commercial enzyme preparations, namely, Celluclast, SP 249 and Silo Guard II. These enzymes were added to the kikuyu prior to ensiling in laboratory...

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Remote sensing applications for monitoring rangeland vegetation

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: P.T. Tueller --- Department of Range, Wildlife and Forestry, United States of America

Remote sensing techniques hold considerable promise for the inventory and monitoring of natural resources on range‐lands. A significant lack of information concerning basic spectral characteristics of range vegetation and soils has resulted in a lack of rangeland applications. To use...

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A comparison of continuous and rotational grazing on veld at two stocking rates

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 R.P. Denny --- , Republic of South Africa

Two rotational grazing procedures, a four‐paddock system with a 10‐day period of stay and an eight‐paddock system with a 5‐day period of stay, were compared with continuous grazing on veld. The trial was conducted 40 km south of Bulawayo in...

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Problems in implementing improved range management on common lands in Africa: An Australian perspective

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: V.R. Squires --- Department of Environmental Science and Range Management, Australia T.L Mann --- Department of Agricultural Technology, Australia M.H. Andrew --- Department of Environmental Science and Range Management, Australia

Rangeland/livestock development in Africa is reviewed and lessons learnt from successes and failures are noted. Pastoral communities have developed risk aversion strategies to survive in the harsh environment and fragile ecology of rangeland areas. With advances in infrastructure (transport, water...

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Utilization of Lolium multiflorum by sheep 1. Influence of dry matter content and correlated factors on voluntary intake

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: H.H. Meissner --- Department of Livestock Science, Republic of South Africa MarianaM. du Preez --- Department of Livestock Science, Republic of South Africa A.D. Enslin --- Department of Livestock Science, Republic of South Africa E.B. Spreeth --- Department of Livestock Science, Republic of South Africa

The intake by young sheep of Lolium multiflorum cv. Midmar (ryegrass) with dry matter (DM) contents of between 10.2% and 20.5% was studied. Intake was measured on pasture, while at the same time herbage was cut and fed either fresh...

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Utilization of Lolium multiflorum by sheep 2. The effect of drying the herbage on soluble nitrogen content and partial digestion

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: MarianaM. du Preez --- Department of Livestock Science, Republic of South Africa H.H. Meissner --- Department of Livestock Science, Republic of South Africa

The amount of soluble N and the effective degradation of fresh and dry herbage of Lolium multiflorum cv. Midmar (ryegrass) was determined by the nylon bag technique. In another experiment the digestion and disappearance of organic matter (OM) and nitrogen...

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Seasonal changes in nutrient content under three defoliation treatments in two coastal grassland communities of Transkei

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: C.M. Shackleton --- Department of Botany, Transkei M.T. Mentis --- Department of Botany, Republic of South Africa

Changes in nutrient concentrations were monitored over a two‐year period in two coastal grassland communities. Dry matter digestibility, crude protein, phosphorus, potassium, calcium and magnesium were determined from hand‐clipped samples of experimental treatments; namely, burning with and without subsequent grazing...

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An evaluation of the empirical basis for grazing management recommendations for rangeland in southern Africa

Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: P.J. O'Reagain --- Department of Agricultural Development (Eastern Cape Region), Republic of South Africa J.R. Turner --- Department of Grassland Science, Republic of South Africa

Analysis of over 50 grazing experiments conducted in southern Africa does not support certain management recommendations. Furthermore, the conclusions of some experiments are questionable owing to poor experimental design or confirmation bias. Based on available evidence, it was concluded that...

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The soil seed bank under nasella tussock infestations at Boschberg

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.C. Joubert --- Department of Agriculture,

Nassella tussock (Stipa trichotoma Nees.) has a high annual production of seeds per plant. The total seed bank of all plants counted under a dense nassella infestation varied between 50 000 and 100 000 seeds m−2 surface area (5 cm...

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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.

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Effect of soil fertility on the vegetative growth, yield and water use of wheat (Triticum aestivum L.)

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.G. Annandale --- Department of Plant Production, Republic of South Africa P.S. Hammes --- Department of Plant Production, Republic of South Africa P.C. Nel --- Department of Plant Production, Republic of South Africa

Well-fertilized wheat was found to use more water than wheat on poorly fertilized plots, but the yield was increased, resulting in increased water-use efficiency. Variations in leaf area duration after anthesis accounted for 81% of the variation in yield.

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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...

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Estimation of minimum temperature on a mesoscale

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. Myburgh --- ,

Working relationships between mean minimum temperatures and environmental factors by means of regression techniques were established and used to estimate temperatures at gridpoints. These estimated temperatures were then used with a computer package program to map the isotherms on a...

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Yield assessment of advanced wheat breeding lines in the Winter Rainfall Region of South Africa. II. Choosing representative trial sites

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.F. Marais --- ,

An evaluation of the present system of testing of advanced wheat lines was made in terms of expected genetic gain from selection. Indications are that this system can function quite effectively if properly managed. The feasibility of substituting high potential...

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Evaluation of the coefficients of the Ångström formula for the estimation of solar radiation in South Africa

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. C.M. Reid --- Department of Water Affairs,

The regression coefficients of a modified Ångström formula, initially postulated as being constant under all climatic conditions, have with widespread use been shown to vary not only spatially but also due to variable sunshine duration conditions. Daily sunshine duration and...

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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 Africa

Tetrapion 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...

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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 Africa

Class 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...

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Utility of ear plots versus hill and row plots in wheat breeding programmes

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: K.W. Pakendorf --- , Republic of South Africa

Yield testing in early generations of wheat breeding programmes is limited by large numbers of lines and small amounts of seed. This paper compares yield testing using conventional row plots, hill plots and small single-ear plots. The effects of smaller...

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A diallel study of yield differences among six well-adapted semi-dwarf spring wheats

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.F. Marais --- Department of Genetics and Institute for Biotechnology, Republic of South Africa P.S. Botma --- Department of Agriculture and Water Supply, Republic of South Africa

A diallel study of the variability for yield that remained after an effort to exclude some of the factors known to contribute strongly to yield variation in the Winter Rainfall Region, was done. Overdominance resulted in strong heterosis effects which...

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Invloed van nitraat:ammoniumverhoudings op die ontwikkeling van Zea mays L.

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: F.G. Adriaanse --- , Republiek van Suid-Afrika J.J. Human --- Departement Agronomie en Hortologie, Republiek van Suid-Afrika

Die invloed van drie nitraat:ammoniumverhoudings by twee stikstofkonsentrasies op planteienskappe is met blomtyd en na fisiologiese volwassenheid vir suiwerlyne gemeet. 'n Kwartssandkultuur is as groeimedium in 'n glashuis gebruik. Toenemende NH4 +-verhoudings het planthoogtes, blaaroppervlaktes en droëmateriaalproduksie van verskillende plantkomponente...

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The yield potential and crude protein content of five rhizomatous and stoloniferous grass pastures in the escarpment areas of the eastern Transvaal

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N. F.G. Rethman --- Athole Research Station, Department of Agriculture & Water Supply, Republic of South Africa C. C. de Witt --- Athole Research Station, Department of Agriculture & Water Supply, Republic of South Africa

Whilst Cynodon aethiopicus and the Cynodon hybrid, ‘Coast Cross II’, proved to be unsuited to the cool high rainfall conditions, Acroceras macrum, Pennisetum clandestinum and Digitarla scalarum were well adapted. There was little difference in yield potential between local and...

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Reaction of three veld grasses to different schedules of grazing and resting. 1. Patterns of shoot growth

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.L. Barnes --- Department of Agriculture and Water Supply, Republic of South Africa

Seven defoliation treatments involving grazing at three-weekly intervals with sheep until mid-January or mid- March, or for the whole growing season, at each of two stocking rates, or resting for the whole growing season, were applied on veld during the...

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Reaction of three veld grasses to different schedules of grazing and resting. 2. Residual effects on vigour

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.L. Barnes --- Department of Agriculture and Water Supply, Republic of South Africa

Seven defoliation treatments involving grazing at intervals with sheep until mid-January or mid-March, or for the whole growing season at each of two stocking intensities, or resting for the whole growing season (control treatment) were applied on veld during the...

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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 Africa

Various 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+...

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Rate of dissolution of gypsum from different sources and its effect on water infiltration of soil

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H. Frenkel --- Department of Agronomy, Republic of South Africa M.V. Fey --- Department of Agronomy, Republic of South Africa

Five sources of gypsum (pure, mined and three industrial) were pressed into pellets and their dissolution rate when suspended in water compared by measuring electrical conductivity of the stirred solution. Pellets of industrial phosphogypsum from Phalaborwa, Potchefstroom and Richards Bay...

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Effect of soil surface amendments on runoff and erosion from simulated rain applied to a sesquioxidic soil

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H. Frenkel --- Department of Agronomy, Republic of South Africa M.V. Fey --- Department of Agronomy, Republic of South Africa G.H. Goodall --- Department of Agronomy, Republic of South Africa W.B. Russell --- Department of Agriculture and Water Supply, Republic of South Africa

Simulated rainfall, using low conductivity water, was applied at an intensity of 63 mm h−1 to a field soil of the Doveton series (a kaolinitic, sesquioxidic clay soil at Cedara in Natal, recently cultivated out of pasture) after pre-treatment of...

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Effect of triadimefon on fruit set and seed development of ‘Starking Delicious’ apple

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G. Jacobs --- Department of Horticulture, Republic of South Africa L. Gouws --- Department of Horticulture, Republic of South Africa D.K. Strydom --- Department of Horticulture, Republic of South Africa

Spray applications of triadimefon (TDF) (1–4 chlorophenoxy 3,3 dimethyl 1–1-H-1,2,4 triazol 1-yl-2 butanone) (5% W.P.) at 100 mg dm−3 active ingredient at full bloom and pre- and/or post-full bloom on ‘Starking Delicious’ apple trees (Malus domestica Borkh.) increased fruit set...

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Provisional assessment of quality components in lucerne (Medicago sativa) and white clover (Trifolium repens) using a near infrared reflectance spectrophotometer

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: MariéA. Stoltz --- Transvaal Region, Department of Agriculture and Water Supply, Republic of South Africa

A near infrared reflectance spectrophotometer (NIRS) with tilting filters was calibrated for the determination of the forage quality components, crude protein (CP), acid detergent fibre (ADF), neutral detergent fibre (NDF), in vitro organic matter digestibility (IVOMD), dry matter (DM) and...

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The effect of leaf water potential on the carbon-dioxide uptake rate during different growth stages of wheat (Triticum aestivum L.)

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.J. Human --- Department of Agronomy, Faculty of Agriculture, Republic of South Africa W.J. Roux --- Department of Agronomy, Faculty of Agriculture, Republic of South Africa L.P. de Bruyn --- Department of Agronomy, Faculty of Agriculture, Republic of South Africa

The effect of water stress on the CO2 uptake rate was measured at three different growth stages of wheat grown in Mitscherlich pots in a glasshouse experiment. Stress was induced by withholding water until the leaf water potential reached −2...

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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 Africa

This 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...

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The effect of seeding rate, timing of nitrogen application and frequency of irrigation on wheat growth, yield and water use

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 Africa

Wheat (Triticum aestivum cv. SST66) was planted in a 2 × 2 × 2 factorial field experiment. Factors investigated were seeding rate, timing of nitrogen application and frequency of irrigation. The two seeding rates were 85 and 170 kg ha−1...

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The dough handling properties of two South African wheats with the 1B/1R chromosome translocation

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D. van Lill --- Small Grain Centre, Republic of South Africa N.L. Howard --- Small Grain Centre, Republic of South Africa H.A. van Niekerk --- Small Grain Centre, Republic of South Africa

Samples of two hard red spring wheats having the 1B/1R translocation were processed with commercial milling and baking equipment. Dough handling properties were noted following low and high speed mixing of the flours. W83/10 flour was totally unsuited for commercial...

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Resistance in wheat to maize streak virus

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.B. Scott --- Small Grain Centre, Republic of South Africa H.A. van Niekerk --- Small Grain Centre, Republic of South Africa

Sixteen spring wheat cultivars were screened for resistance to maize streak virus (MSV) in the eastern Transvaal where the disease often attains epidemic proportions in wheat and maize. In this area four cultivars were resistant, two were susceptible and ten...

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Evaluating different wheat production strategies for the Orange Free State using stochastic dominance techniques and a crop 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 Africa

A wheat crop growth model and stochastic dominance techniques were used to evaluate several wheat production strategies for the Orange Free State. Fifty seasonal grain yields and corresponding gross margins were calculated from daily weather data and soil data for...

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A family of stochastic models for droughts

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W. Zucchini --- Department of Statistical Sciences, Republic of South Africa P.T. Adamson --- , United Kingdom L. McNeill --- Department of Statistical Sciences, Republic of South Africa

There is no single quantitative definition of a drought; what constitutes a drought depends both on water needs and on storage capabilities. In this paper a family of models is proposed which is sufficiently flexible to cover a range of...

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An attempt at estimating solar radiation at South African sites which measure air temperature only

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B. S.E. Clemence --- , Republic of South Africa

Daily potential surface radiation values were calculated for selected South African weather stations. These were used, together with various air temperature parameters, to derive regression equations to estimate actual surface solar radiation at sites lacking the required instrumentation. A single...

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Polymer effect on infiltration and erosion of sodic soils

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M. Gal --- , Republic of South Africa R. Stern --- , Republic of South Africa J. Levin --- , Republic of South Africa M. Ben-Hur --- , Republic of South Africa

Runoff from irrigated sodic soils is a common phenomenon in arid and semi-arid climates. The effect of a low-charge polysaccharide (LCCP) on infiltration rate (IR) and runoff on two red apedal soils was studied using an irrigation simulator. One was...

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The effects of various seed treatments on the germination, coleoptile length and emergence of South African winter wheats (Triticum aestivum L.)

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.L. Purchase --- Small Grain Centre, Republic of South Africa J. le Roux --- Small Grain Centre, Republic of South Africa H.A. van Tonder --- Small Grain Centre, Republic of South Africa

The effect of four seed treatments and storage period of treated seed on the germination, coleoptile length and emergence of five winter wheat genotypes was investigated. The first trial was conducted under controlled conditions to determine the effect of triadimenol,...

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The use of a sewage sludge as a fertilizer for wheat in a glasshouse pot experiment

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.C. Hughes --- Department of Agronomy, Republic of South Africa A.D. Noble --- Department of Agronomy, Republic of South Africa S. Scott-Brown --- Department of Agronomy, Republic of South Africa

Acid soil infertility is a major limiting factor in crop production on soils along the eastern seaboard of South Africa. Invariably this problem is addressed by effectively liming the topsoil with little influence on subsoil acidity. A study was conducted...

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Kompetisie tussen koring (Triticum aestivum L.) en Bromus diandrus I. Invloed op vegetatiewe groei

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.M. Ferreira --- Departement Landbou-ontwikkeling, Republiek van Suid-Afrlka G.A. Agenbag --- Departement Akkerbou en Weiding, Republiek van Suid-Afrika

Die doel van hierdie studie was om die kompetisievermoë van koring (Triticum aestivum L.) en Bromus diandrus Roth, te vergelyk in terme van vegetatiewe groei in veldproewe. Die proewe is ontwerp as 'n verpla- singsmodel met sewe populaslesamestellings (behandelings) en...

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Estimation of soil water retention from clay content and cation exchange capacity values of soils

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A. D.P. Botha --- , Republic of South Africa B.E. Eisenberg --- , Republic of South Africa

Soil water characteristics can be estimated accurately from the clay content and cation exchange capacity (CEC) values of soils. The clay with its very large adsorption surface and CEC which reflects the negative charge of clays, is jointly responsible for...

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Pistilloidy in common wheat resulting from a spontaneous mutation

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.F. Marais --- Department of Genetics and Institute for Biotechnology, South Africa B. Lombard --- , Republic of South Africa

A plant that produced more than one kernel in many of its florets was isolated from breeding material. The condition was found to be transmitted in monogenic fashion as a recessive character. Transmission of the mutation through the egg cells...

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Evaluering en kalibrering van CERES-Maize. 1. Nie-lineêre regressie om genetiese parameters te bepaal

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.S. du Toit --- , Republiek van Suid-Afrika P.J. van Rooyen --- , Republiek van Suid-Afrika J.J. Human --- Departement Agronomie, Republiek van Suid-Afrika

Die genetiese parameters van die meeste plaaslike mielie cultivars wat as inset van CERES-Maize benodig word, is nog nie bepaal nie. Sodanige parameters kan met behulp van bestaande oesdata en fenologiese datums, uit veldproewe afgelei word. Programmatuur kan gebruik word...

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Reaksie van twee lentekoringkultivars op stikstof- en swaelbemesting in die Swartland. I. Vegetatiewe groei, opname en konsentrasie van stikstof en swael in die vegetatiewe plant

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.P. du Plessis --- , Republiek van Suid-Afrika G.A. Agenbag --- Departement Akkerbou en Weidlng, Republiek van Suid-Afrika

Die belangrikheid van die korrekte N: S verhouding het die vraag laat ontstaan of 'n wanbelans tussen N en S nie gedeeltelik 'n bydrae tot die swak benuttingsdoeltreffendheid van N by hoë N-bemestings in die Swartland kan lewer nie. 'n...

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Reaksie van twee lengtekoringkultivars op stikstof- en swaelbemesting in die Swartland. II. Opbrengs en bakkwaliteit

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.P. du Plessis --- , Republiek van Suid-Afrika G.A. Agenbag --- Departement Akkerbou en Weiding, Republiek van Suid-Afrika

In die Swartlandkoringproduksiegebied is daar oor die afgelope tien jaar 'n daling in die gemiddelde prote'ieninhoud en bakkwaliteit van koring ondervind, selfs ten spyte van verhoogde stikstofbemesting. Die belangrikheid van die korrekte N: S verhouding het die vraag laat ontstaan...

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Managing certain recently named Lr genes in breeding wheat for resistance to Puccinia recondita f. sp. tritici in South Africa

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Z.A. Pretorius --- Department of Plant Pathology, Republic of South Africa B.D. van Niekerk --- Department of Plant Pathology, Republic of South Africa F.J. Kloppers --- Department of Plant Pathology, Republic of South Africa A.L. Vorster --- Department of Plant Pathology, Republic of South Africa

Five new or locally unexploited Lr genes were evaluated as sources of resistance to leaf rust (Puccinia recon- dita Rob. ex Desm. f. sp. tritici) of wheat (Triticum aestivum L.) in South Africa. The expression of Lr36, Lr41 and Lr42,...

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Field evaluation of leaf rust severity, yield loss and quality characteristics in near-isogenic wheat lines with Lr29, Lr35 or Lr37

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: F.J. Kloppers --- Department of Plant Pathology, Republic of South Africa Z.A. Pretorius --- Department of Plant Pathology, Republic of South Africa D. van Lill --- Small Grain Centre, Republic of South Africa

The potential of three Lr genes in the wheat lines RL6080 (Thatcher*6/Lr29), RL6081 (Thatcher*8/Lr37) and RL6082 (Thatcher*6/Lr35) was evaluated in field experiments. Leaf rust reaction types on flag leaves of lines with Lr29, Lr35 or Lr37 varied between resistance and...

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The effects of tillage systems on soil bulk density and penetrometer resistance of a sandy clay loam soil

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.T. Steyn --- Small Grain Centre, Republic of South Africa J. P.C. Tolmay --- Small Grain Centre, Republic of South Africa J.J. Human --- Department of Agronomy, Republic of South Africa W.H. Kilian --- Small Grain Centre, Republic of South Africa

Concern has been expressed that reduced tillage systems may lead to excessive soil compaction, with a negative impact on crop growth. The objectives of this study were to determine the effects of different tillage systems, namely, minimum tillage (disc and...

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Die invloed van grondbewerking op vroeë wortelontwikkeling en biomassa van koringkultivars (Triticum aestivum L.)

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.T. Steyn --- , Republiek van Suid-Afrika J. P.C. Tolmay --- , Republiek van Suid-Afrika J.J. Human --- Departement Agronomie, Republiek van Suid-Afrika

Dit is bekend dat 'n goeie wortellengte en/of worteldigtheid in die eerste paar weke belangrik is om goeie saailingvestiging te verkry. Die doel van hierdie studie was om die uitwerking van minimumbewerking (wisselgangskotteleg en vlerkskaar), beitelploeg- en konvensionele bewerking op...

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Effect of yellow berry on yield and protein composition of spring wheat (Triticum aestivum L.)

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N.C. Raath --- Department of Agriculture, Republic of South Africa G.A. Agenbag --- Department of Agronomy and Pastures, Republic of South Africa O.T. de Villiers --- Department of Botany, Republic of South Africa

Yellow berry is a physiological condition in wheat which is associated with nitrogen stress. Results from an experiment where some treatments resulted in unusually large percentages of yellow berry kernels indicated a negative relationship between the incidence of yellow berry...

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Some observations on rodent and antelope damage in commercial forest plantations

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N.S. Eccles --- , Republic of South Africa K.M. Little --- , Republic of South Africa

The impact of various weeding and site-preparation treatments on Acacia mearnsii and Pinus patula damage by mammalian pests was assessed. Browsing by small antelope on Acacia mearnsii was significantly less in areas where harvesting residues had been retained rather than...

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Evaluation of proline accumulation as an indicator of drought tolerance in spring wheat cultivars

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. D.R. van Heerden --- Department of Botany, Republic of South Africa O.T. de Villiers --- Department of Botany, Republic of South Africa

The aim of this study was to evaluate proline accumulation as an indicator of drought stress and drought tolerance in spring wheat cultivars (Triticum aestivum L.) grown in the Western Cape. Drought stress was induced in whole plants and leaf...

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Seedling and adult plant resistance to leaf rust in the wheat cultivar Tugela

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Z.A. Pretorius --- Department of Plant Pathology, Republic of South Africa F.J. Kloppers --- Department of Plant Pathology, Republic of South Africa

The South African bread wheat cultivar Tugela has consistently displayed effective field resistance to leaf rust, caused by Puccinia recondita Rob. ex Desm. f. sp. tritici. Based on its pedigree and adult plant reaction to leaf rust, it has been...

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Evaluation of the relative water content and the reduction of 2,3,5-triphenyltetrazoliumchloride as indicators of drought tolerance in spring wheat cultivars

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. D.R. van Heerden --- Department of Botany, Republic of South Africa O.T. de Villiers --- Department of Botany, Republic of South Africa

The aim of this study was to evaluate the relative water content and the reduction of 2,3,5-triphenyltetrazoliumchloride, as indicators of drought stress and drought tolerance in spring wheat cultivars (Triticum aestivum L.) grown in the Western Cape. Drought stress was...

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Assessment of macroscopic components of leaf rust resistance in wheat genotypes containing Lr12 and Lr13

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.M. Bender --- Department of Plant Pathology, South Africa Z.A. Pretorius --- Department of Plant Pathology, South Africa J.J. Spies --- Department of Botany and Genetics, South Africa

Monogenic resistance in wheat (Triticum aestivum L.) to leaf rust, caused by Puccinia recondita Rob. ex. Desm. f. sp. tritici, has generally not been durable. Durable resistance, as well as an improved expression of resistance, have been associated with Lr...

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Interaction between cultivar and soil fertility on grain yield, yield components and grain nitrogen content of wheat

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: LewisA. Metho --- Department of Plant Production and Soil Science, South Africa P.S. Hammes --- Department of Plant Production and Soil Science, South Africa J.M. de Beer --- Department of Plant Production and Soil Science, South Africa H.T. Groeneveld --- Department of Statistics, South Africa

The effect of soil nutrient status on the performance of four wheat cultivars was studied in a long-term field experiment at the University of Pretoria. The objective was to quantify the effect of soil nutrient status on yield, yield components...

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Sources of variation for yield, protein content and hectolitre mass of spring wheat (Triticum aestivum L.) cultivars of the Western and Southern Cape

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.M. Nel --- Department of Agronomy and Pastures, Republic of South Africa G.A. Agenbag --- Department of Agronomy and Pastures, Republic of South Africa J.L. Purchase --- , Republic of South Africa

In the Western and Southern Cape the quality of wheat varies annually due to variable climatic conditions. This holds a commercial risk to the milling and baking industries in delivering the refined products to their respective clients. It is, therefore,...

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A comparison of two methods of inducing water stress in wheat (Triticum aestivum L.)

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.A. Strauss --- Department of Agronomy and Pastures, G.A. Agenbag --- Department of Agronomy and Pastures,

The aim of this study was to compare the withholding of water and the use of polyethylene glycol (PEG) as methods of inducing water stress in spring wheat cultivars (Triticum aestivum L.) grown in the Western Cape. Water stress was...

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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 Africa

Nassella 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...

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Investigation of the suitability of Western and Southern Cape wheat flour for production of traditional South African steamed bread

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M. Manley --- Department of Food Science, Republic of South Africa M.M. Nel --- Department of Agronomy and Pastures, Republic of South Africa

Due to a lack of electrical ovens, it is often found that in the households of the lower-income communities, a home-made steamed bread is prepared in a saucepan on a gas cooker or an open fire. The requirements of flour...

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The development of harvesting schedules and post-harvesting management practices relative to oil yield of Eriocephalus punctulatus

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.N. Webber --- Department of Livestock and Pasture Science, Republic of South Africa M.L. Magwa --- Electron Microscope Unit, J. van Staden --- Department of Botany, University of Natal Pietermaritzburg, Republic of South Africa

The first phase in the domestication programme of Eriocephalus punctulatus involved establishing how this crop could be harvested without adversely affecting plant vigour and longevity. The second phase of the domestication programme was the development of harvesting schedules that would...

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Sources of variation in spring wheat (Triticum aestivum L.) cultivars of the Western and Southern Cape. I. Milling and dough development characteristics

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.M. Nel --- Department of Agronomy and Pastures, Republic of South Africa G.A. Agenbag --- Department of Agronomy and Pastures, Republic of South Africa J.L. Purchase --- , Republic of South Africa

Approximately 90% of the annual wheat crop produced in the Republic of South Africa is milled into flour for bread-baking purposes. The percentage of flour extracted, as well as the dough development properties, determine the milling and dough mixing characteristics...

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Sources of variation in spring wheat (Triticum aestivum L.) cultivars of the Western and Southern Cape. II. Baking characteristics

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.M. Nel --- Department of Agronomy and Pastures, Republic of South Africa G.A. Agenbag --- Department of Agronomy and Pastures, Republic of South Africa J.L. Purchase --- , Republic of South Africa

Protein content and quality determine flour quality, as well as the success of bread-baking. The stability of wheat quality characteristics is of great importance to the milling and baking industry, who have to produce an end product of acceptable and...

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Optimisation of transient transformation of a South African spring wheat cultivar with particle bombardment

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S.M. de Villiers --- , Republic of South Africa Y. Laib --- Centre de Developement des Techniques Nuclear, Algeria

Transient transformation was optimised for bread wheat, Triticum aestivum L. cv Kariega, using a particle inflow gun constructed at ARC-Roodeplaat. Excised immature embryos, cultured in vitro for 5 to 7 days, were bombarded with pAHC25 and analysed for the presence...

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Manipulation of acrotony in one-year-old apple shoots

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N.C. Cook --- Department of Horticultural Science, Republic of South Africa K. Verhaegen --- , Belgium J. Keulemans --- , Belgium G. Jacobs --- Department of Horticultural Science, Republic of South Africa

Unbranched rooted layers of the rootstock Mailing 9 (M.9 clone Nie 29) ≈600 mm long were treated twice in autumn (4 and 13 October 1995) in the stoolbed as follows: a) non-treated control; b) the distal 300 mm of the...

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The harvest index of individual ears of four South African wheat (Triticum aestivum L.) cultivars

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.A. Metho --- Department of Agriculture and Environmental Affairs KwaZulu-Natal, Technology Development and Training (FSR), Republic of South Africa P.S. Hammes --- Department of Plant Production and Soil Science, Republic of South Africa

Increasing the harvest index is a major route to higher yields in regions where a crop has had a lengthy period of selection and adaptation. No information could be found on differences in the harvest indices of the main stems...

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Genotype variation in regeneration and transient expression efficiencies of 14 South African wheat cultivars

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L. Lacock --- , Republic of South Africa A-M. Botha --- , Republic of South Africa

Fourteen spring and winter hard red South African wheat (Triticum aestivum L.) cultivars were compared for their regeneration and transient anthocyanin expression efficiencies. Embryonic and non-embryonic callus, as well as plantlets, were obtained from all the cultivars cultured on a...

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Genotypic response to chilling period of apple buds from two Western Cape localities

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.J. Halgryn --- Department of Horticultural Science, Republic of South Africa K.I. Theron --- Department of Horticultural Science, Republic of South Africa N.C. Cook --- Department of Horticultural Science, Republic of South Africa

One-year-old, ca. 40 cm long shoots of various apple cultivars were selected from commercial orchards in both the Elgin [34°S, 305 m, ca. 750 Utah Chill Units (CU)] and Koue Bokkeveld (33°S, 945 m, ca. 1300 CU) regions of the...

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An evaluation of three Sr27-carrying wheat × rye translocations

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.F. Marais --- Department of Genetics, Republic of South Africa

Near isogenic lines differing for the presence or absence of group 3 wheat x rye translocations were developed in three wheat varieties. These included a non-compensating 3AS.3RS translocation and two compensating translocations with constitutions 3AL.3RS and 3BL.3RS. Results of a...

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AFLP and RAPD markers linked to leaf rust resistance gene Lr41 in wheat

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J-M. Lottering --- Department of Genetics, A-M. Botha --- Department of Genetics, F.J. Kloppers --- , South Africa

RAPD (random amplified polymorphic DNA) and AFLP (amplified fragment length polymorphism) analyses were used to identify molecular markers linked to the leaf rust resistance gene Lr41. Bulk and parental lines were screened with 380 RAPD primers and 64 AFLP primer...

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Casting of kraal manure by larvae of the African rhinoceros beetle, Oryctes boas (Fabricius) and the physico-chemical properties of the casts

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S.A. Materechera --- , South Africa T.S. Mkhabela --- , South Africa

The influence of manure ingestion by larvae of Oryctes boas on casting and cast properties was studied in an incubation microcosm experiment. Inoculation of manure with larvae of O. boas significantly reduced the proportion of large (>8.0 mm) aggregates from...

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The impact of leaf rust on spring wheat in the winter rainfall region of South Africa

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W. H.P. Boshoff --- , Republic of South Africa Z.A. Pretorius --- Department of Plant Pathology, Republic of South Africa B.D. van Niekerk --- , Republic of South Africa

In a field trial established near Malmesbury in the Western Cape during 1999 the effect of Puccinia triticina on yield and quality of the bread wheat (Triticum aestivum L.) cultivar SST 75 was determined. Information on the efficacy of different...

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Development and validation of relationships between sunflower seed quality and easily measurable seed characteristics for grading purposes

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.A. Nel --- , Republic of South Africa H.L. Loubser --- , Republic of South Africa P.S. Hammes --- Department of Plant Production and Soil Science, Republic of South Africa

Sunflower seed delivered by farmers is usually traded without taking seed quality into account, owing to the lack of a quick and inexpensive method for quality assessment at delivery points. Seed quality parameters (oil content, protein content, hullability and amount...

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Fungicide efficacy and the impact of stripe rust on spring and winter wheat in South Africa

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W. H.P. Boshoff --- , Republic of South Africa Z.A. Pretorius --- Department of Plant Sciences, Republic of South Africa B.D. van Niekerk --- , Republic of South Africa

Field trials were conducted from 1997 to 1999, in both the winter and summer rainfall areas of South Africa, to determine the effect of Puccinia striiformis Westend, f. sp. tritici Erikss. on yield and quality of bread wheat (Triticum aestivum...

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The measurement of low organic matter contents in soils

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.J. Rowell --- Agricultural Laboratory, Ministry of Agriculture, Water and Rural Development, Namibia M.E. Coetzee --- Agricultural Laboratory, Ministry of Agriculture, Water and Rural Development, Namibia

Four methods were compared to measure the small amounts of organic matter present in many Namibian soils and to detect organic amendments added to improve fertility. Two Walkley-Black wet oxidation methods involving titration (WBT-C) and colourimetry (WBC-C) and two loss...

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Effect of planting and harvesting dates on fungus-growing termite infestations in maize

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. van den Berg --- , South Africa H.F. Riekert --- , South Africa

Fungus-growing termites (Microtermes spp. and Allodontermes spp.) damage maize roots and cause lodging. The pattern of attack, incidence of lodging, and the effect of planting and harvesting dates on damage and yield were studied in field trials over five seasons...

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CLIMGEN-UP: A user-friendly weather data generator

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N.Z. Jovanovic --- Department of Earth Sciences, South Africa J.G. Annandale --- Department Plant Production and Soil Science, South Africa N. Benadè --- , South Africa G.S. Campbell --- , USA

User-friendly Windows software, CLIMGEN-UP, was developed based on the CLIMGEN weather data generator. CLIMGEN-UP calculates and stores monthly statistical parameters, based on historic data of daily rainfall, minimum and maximum temperature. It can then generate and store long-series of daily...

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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 Africa

A 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...

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Effects of sodium sulphate, sodium chloride and manganese sulphate on kikuyu (Pennisetum clandestinum) growth and ion uptake

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.J. Mills --- Department of Soil Science, South Africa M.V. Fey --- Department of Soil Science, South Africa C.E. Johnson --- Department of Civil and Environmental Engineering, USA

Irrigation with saline water is increasingly practised yet an understanding of plant response to different salt types remains largely elusive. Our study investigated the effects of irrigation with simulated effluent containing three salts on the growth and composition of a...

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The relationship between soil morphology and soil water regime: preliminary results in the Weatherley catchment

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.W. van Huyssteen --- Department of Soil, Crop and Climate Sciences, Republic of South Africa P. A.L. le Roux --- Department of Soil, Crop and Climate Sciences, Republic of South Africa M. Hensley --- Department of Soil, Crop and Climate Sciences, Republic of South Africa

Soil water contents were measured for five years at Weatherley, an intensively instrumented catchment in the north eastern part of the Eastern Cape Province. Soil water contents are expressed in terms of average duration of saturation with water above 0.7...

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Comparison between methods for estimating sprout damage in wheat

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A. Barnard --- , South Africa C.S. van Deventer --- Department of Plant Science (Plant Breeding), Faculty of Natural and Agricultural Sciences, South Africa H. Maartens --- Department of Plant Science (Plant Breeding), Faculty of Natural and Agricultural Sciences, South Africa

Sprouting in wheat is common when rain occurs during harvest. This causes the moisture content of the grain to increase to a level at which germination takes place and α-amylase increases. Various methods can be used to determine α-amylase in...

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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 Africa

Russian 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...

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Interpretation of digital soil photographs using spatial analysis: I. Methodology

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.W. van Huyssteen --- Department of Soil, Crop and Climate Sciences, South Africa P. A.L. le Roux --- Department of Soil, Crop and Climate Sciences, South Africa M. Hensley --- Department of Soil, Crop and Climate Sciences, South Africa

Systems for the evaluation of soil wetness use soil colour extensively. The determination of soil colour normally relies on the user's perception of colour and usually employs a colour matching system, e.g. Munsell Soil Color Charts. The South African soil...

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Interpretation of digital soil photographs using spatial analysis: II. Application

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.W. van Huyssteen --- Department of Soil, Crop and Climate Sciences, South Africa P. A.L. le Roux --- Department of Soil, Crop and Climate Sciences, South Africa M. Hensley --- Department of Soil, Crop and Climate Sciences, South Africa

Colour variation in digital photographs of soils was quantified and classified meaningfully, using ArcView Spatial Analyst. This procedure holds great promise for the unbiased and quantitative determination of soil colour properties and statistical correlation with related soil hydrological conditions. The...

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Amaranthus tricolor L. leaf yields affected by salinity, harvesting stage and harvesting methods

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. E.M.M. Ribeiro --- Department of Agronomy, South Africa N. J.J. Combrink --- Department of Agronomy, South Africa

Single Amaranthus tricolor seedlings were transplanted into containers filled with 5 I river sand and were fertigated with a ‘drain to waste’ system. Plants were grown in the open under warm summer conditions. Four to six daily applications of nutrient...

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Evaluating the maize production potential of a semi-arid ecotope with four production techniques

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: T.B. Zere --- Department of Soil, South Africa C.W. Huyssteen --- Department of Soil, South Africa M. Hensley --- Department of Soil, South Africa

Water conservation production techniques are needed to boost crop production in semi-arid areas. The in-field rainwater harvesting (IRWH) technique has been developed for this purpose, and found to be successful on clay and duplex soils, but has not yet been...

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The effects of strategic nitrogen fertiliser application during the cool season on perennial ryegrass-white clover pastures in the Western Cape Province 4. Selected nutritive characteristics and mineral content

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. Labuschagne --- , South Africa M.B. Hardy --- Department of Agriculture Western Cape, South Africa G.A. Agenbag --- , South Africa

The influence of a single application of fertiliser N (0, 50, 100 and 150 kg N ha−1) applied in either autumn, early winter, late winter, early spring or late spring on selected nutritive and mineral parameters of a perennial ryegrass-white...

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Statistical evaluation of the germination of Cleome gynandra L. seeds

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.O. Ochuodho --- , South Africa A.T. Modi --- , South Africa

Radicle protrusion and subsequent seedling establishment are two ways of defining seed germination. However, international rules for testing seeds adopted the first and final counts through consensus as defining stages of seed germination. In this study statistical guidelines have been...

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Honeybush (Cyclopia spp.) response to phosphorus fertilisation and mulching

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.E. Joubert --- , South Africa P.S. Botma --- , South Africa W. A.G. Kotzé --- , South Africa J. Wooldridge --- , South Africa

Honeybush (Cyclopia spp.) is endemic to the Western- and Eastern Cape where it grows naturally in sandy, acidic, low- phosphorus (P) soils. The effects of different rates of applied P, and of mulches, on the growth of four honeybush species...

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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 Africa

An 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...

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Bio-stimulatory properties in seeds of plants from the families Caryophyllaceae and Fabaceae with application potential in agriculture

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.C. Pretorius --- , South Africa A. Du Plessis --- , South Africa E. van der Watt --- , South Africa

A comparative investigation into the bio-stimulatory activity of seed suspensions from two South African plant species belonging to each of the families Caryophyllaceae and Fabaceae were conducted using ComCat®, a commercially available bio-stimulant, as a positive control. These included Acacia...

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Multivariate analysis of selected allied chemical properties of soils close to an abandoned manganese mine

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G. E. Ekosse --- , South Africa P. S. Fouche --- , South Africa

This study aimed at understanding the statistical relationships between base saturation percent (BSP), cation exchange capacity (CEC), pH(water) and electrical conductivity (EC) in soils within close proximity to the abandoned Kgwakgwe Mn oxide ore mine, Botswana. Four hundred soil samples...

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Frodo and Darius: South African potato cultivars with good processing quality

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.M. Steyn --- Department of Plant Production and Soil Science, South Africa E.B. Geremew --- Department of Plant Production and Soil Science, South Africa J.G. Annandale --- Department of Plant Production and Soil Science, South Africa P.J. Steyn --- , South Africa

Two newly released South African potato cultivars, Frodo and Darius, were compared with two foreign processing cultivars, Pentland Dell and Shepody. The cultivars were grown under sprinkler irrigation and evaluated for external and internal tuber characteristics and processing quality. The...

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SCAR markers that specifically tag chromosomes 2D of wheat and 2J₁ ^d of Thinopyrum distichum

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.F. Marais --- Department of Genetics, South Africa C.W. Groenewald --- Department of Genetics, South Africa AS Marais --- Department of Genetics, South Africa

A SCAR marker for Thinopyrum distichum chromosome 2J1 d (involved in salt tolerance) also amplified a slightly larger fragment in chromosome 2D of common wheat and substituted hexaploid triticale. The Thinopyrum and wheat derived fragments were isolated and used to...

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$Relationships between soil particle size fractions and infiltrability$

Relationships between soil particle size fractions and infiltrability

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: T.V. Medinski --- Department of Soil Science, South Africa A.J. Mills --- Department of Soil Science, South Africa M.V. Fey --- , Western Australia

The influence of particle size fractions on infiltrability was investigated in soils sampled across Namibia and western South Africa. Infiltrability was determined using a laboratory technique calibrated with rainfall simulation, which measures the passage of a suspension of soil particles...

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Infiltrability in soils from south-western Africa: effects of texture, electrical conductivity and exchangeable sodium percentage

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: T.V. Medinski --- Department of Soil Science, South Africa A.J. Mills --- Department of Soil Science, South Africa M.V. Fey --- , Western Australia

The effects of particle size, electrical conductivity (EC) and exchangeable sodium percentage (ESP) on infiltra-bility were investigated in 35 soils from Namibia and western South Africa. Samples were grouped as follows: sand (5–9% clay + silt), loamy sand (16–20%) and...

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Soil compaction under sugar cane (Saccharum hybrid sp.) cropping and mechanization in Mauritius

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.R. Ng Cheong --- , Mauritius K.F. Ng Kee Kwong --- , Mauritius C.C. Du Preez --- Department of Soil, Crop and Climate Sciences, South Africa

Farm machinery is increasingly used in sugar cane production in Mauritius and is expected to cause soil compaction. A study was undertaken to ascertain whether the five major cane-growing soil groups of Mauritius were being compacted as a result of...

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Spatial variation of soil and plant properties and its effects on the statistical design of a field experiment

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A. Venter --- , South Africa M.F. Smith --- , South Africa D.J. Beukes --- , South Africa A.S. Claassens --- Department of Plant Production and Soil Science, South Africa M. Van Meirvenne --- Dept. Soil Management and Soil Care, Belgium

The standard procedure in field experimentation is to use a randomized complete block (RCB) design, striving for the most homogeneous conditions as possible among plots in the same block. However, geostatistical concepts dictate that a spatial dependence exists for observations...

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Advances in soil physics: Application in irrigation and dryland crop production

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.D. van Rensburg --- Department of Soil, Crop and Climate Sciences, South Africa

This is the third soil physics review to be published in South African Journal of Plant and Soil. In the previous reviews the focus was broad and covered almost every aspect of the subject, providing a comprehensive list of contributions...

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Grain yield, nitrogen uptake and use efficiency components of South African irrigation wheat cultivars under different nitrogen management strategies

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W.M. Otto --- , South Africa C.C. du Preez --- Department of Soil, South Africa

The effect of different N management strategies on the grain yield, N uptake and use efficiency components of five commercial wheat cultivars were investigated for two consecutive years at Riet River and Loskop irrigation schemes. The cultivars ranged ingrowth period...

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Growth regulator manipulation of apple bud dormancy progressions under conditions of inadequate winter chilling

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.A. Allderman --- , South Africa W.J. Steyn --- Department of Horticultural Science, South Africa N.C. Cook --- , South Africa

Elgin (34°S, 19°E; 305 m.a.s.l.), typical of South African apple growing regions, accumulates 745 Utah Chill Units (CU) p.a. The chilling requirement of ‘Golden Delicious’ apple (Malus xdomesf/ca Borkh.) is c.a. 1100 CU. Consequently, the chilling requirement is not satisfied...

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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 Africa

Soil 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...

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Perspectives on the principles and structure of the soil classification system in South Africa: discussion and practical examples

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: DavidP Turner --- , South Africa

The paper discusses revised principles, perspectives and structure for soil classification of natural soils in South Africa. An expanded ‘sphere of pedological interest’ is proposed through the formal recognition of a wider range of subsurface soil materials. The concept of...

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A revised perspective on principles of soil classification in South Africa

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: DavidP Turner --- Agricultural Research Council-Institute for Soil, Climate and Water, South Africa

Limited significance has been given to the formal recognition of certain subsoil materials in the South African Soil Classification System. Three principles in the current classification system are discussed using variants of soil profiles associated with the Avalon soil form...

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Effect of shallow tillage and straw mulching on soil water conservation and grapevine response

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Philip A Myburgh --- ARC–Infruitec/Nietvoorbij, South Africa

Effects of shallow tillage and straw mulch thickness on water conservation and grapevine responses were compared to bare, untilled soil in a Sauvignon blanc/99R vineyard near Stellenbosch from 1995 to 1997. Shallow tillage to a depth of 6 cm did...

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Development of acoustic techniques for assessment of orange roughy Hoplostethus atlanticus biomass off Namibia, and of methods for correcting for bias

Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: D. C. Boyer I. Hampton

Orange roughy form dense spawning aggregations in specific small areas in deep water on the Namibian shelf between late June and early August each year. The biomass in three such areas, where most commercial fishing occurs (the Johnies, Frankies and...

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Recent population trends of African penguins Spheniscus demersus in Namibia

Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. Kemper J-P. Roux P. A. Bartlett Y. J. Chesselet J. A. C. James R. Jones S. Wepener F. J. Molloy

The African penguin Spheniscus demersus is endemic to southern Africa and is listed overall as "vulnerable". Over the past century, however, the Namibian population has been severely reduced and is currently listed as "critically endangered". Recent trends at Possession, Halifax,...

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Towards a catchability constant for trawl surveys of Namibian hake

Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: I. Huse T. Iilende T. Strømme

A trawl catches only a portion of the fish in its path. The term catchability therefore refers to the fraction of the available fish caught. A method was developed and tested to establish catchability constants for trawl surveys of Namibian...

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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 Roux

Underwater 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...

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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. Burmeister

In 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...

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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-Innes

Information 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...

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Comparison of horse mackerel length frequencies obtained from research vessels and commercial midwater trawlers: implications for biomass estimation

Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: G. Bauleth-D'Almeida J-O. Krakstad A. Kanandjembo

The validity of abundance estimates from hydroacoustic surveys relies, inter alia, on the ability of the fishing gear on the research vessel to sample non-selectively. This study compares the length frequencies of Cape horse mackerel Trachurus trachurus capensis taken in...

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Variable spatial structure of schooling pelagic fish off Namibia: implications for acoustic surveys

Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. C. Coetzee O. A. Misund G. Oechslin

Schools of horse mackerel Trachurus trachurus capensis, sardine Sardinops sagax and round herring Etrumeus whiteheadi were surveyed by conventional echo-integration along systematic transects. The transects were surveyed twice, in opposite directions. Clupeoid biomass was concentrated in a few dense aggregations,...

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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. Johnsen

A 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...

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Direct hydroacoustic observations of chokka squid Loligo vulgaris reynaudii spawning activity in deep water

Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: M. J. Roberts M. Barange M. R. Lipiński M. R. Prowse

Unusual and distinct hydroacoustic targets were observed in November 1996, May 1998 and November 1998 during routine pelagic biomass surveys off the south coast of South Africa. During the November 1996 survey, seven such targets were observed near the bottom...

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The effects of kelp harvesting on its regrowth and the understorey benthic community at Danger Point, South Africa, and a new method of harvesting kelp fronds

Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: G. J. Levitt R. J. Anderson C. J. T. Boothroyd F. A. Kemp

At Danger Point, South Africa, mariculture of the abalone Haliotis midae has led to increased demand for freshly harvested kelp Ecklonia maxima. This study estimates the biomass of E. maxima available for harvesting, investigates the effects of harvesting on the...

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Catch-and-effort estimates for the gillnet and beach-seine fisheries in the Western Cape, South Africa

Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: K. Hutchings S. J. Lamberth

Total catch and effort for the inshore net-fisheries in the Western Cape, South Africa, were estimated by means of face-to-face questionnaire, telephone and access point surveys, analysis of factory records and compulsory catch returns. In most areas, gillnet fishing effort...

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The low-frequency vocal repertoire of adult African dwarf crocodiles

Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Agata Staniewicz --- University of Bristol, United Kingdom Gráinne McCabe --- United Kingdom, Marc Holderied --- University of Bristol, United Kingdom

Acoustic techniques are rapidly becoming powerful tools for species monitoring and biodiversity assessment. These methods can be particularly appropriate for forest-dwelling crocodiles which are difficult to survey visually. However, basic vocal-repertoire data is lacking for many of the poorly known...

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Nietzsche’s Questioning

Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Paul van Tongeren --- Dept. Philosophy, The Netherlands

When Nietzsche is called a radical philosopher, it is (among other reasons) because he claims to call into question what other thinkers take for granted. In the article I concentrate on the way in which Nietzsche asks his questions, and...

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How can Human Beings Transgress their Biologically Based Views?

Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Michael Vlerick --- Department of philosophy, South-Africa

Empirical evidence from developmental psychology and anthropology points out that the human mind is predisposed to conceptualize the world in particular, species-specific ways. These cognitive predispositions lead to universal human commonsense views, often referred to as folk theories. Nevertheless, humans...

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THE EFFECT OF TEMPERATURE ON SPECIFIC GROWTH RATE AND ACTIVATION ENERGY OF MICROCYSTIS AND SYNECHOCOCCUS ISOLATES RELEVANT TO THE ONSET OF NATURAL BLOOMS

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: G. H.J. Krüger --- Department of Botany, South Africa J.N. Eloff --- Department of Botany, South Africa

To investigate the correlation between temperature and the appearance of Microcystis blooms in nature, the effect of temperature on the growth of four Microcystis izolates (two toxic and two non-toxic) was investigated. The lower temperature limit for Microcystis varied between...

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THE EFFECT OF AGITATION AND TURBULENCE OF THE GROWTH MEDIUM ON THE GROWTH AND VIABILITY OF MICROCYSTIS

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: G. H.J. Krüger --- Departement of Botany, South Africa J.N. Eloff --- Departement of Botany, South Africa

Observation of natural blooms of Microcystis, suggested that increased turbulence plays a role in retarding bloom formation of Microcystis. In laboratory experiments the influence of turbulence mediated by a magnetic stirrer on the growth and viability of Microcystis in batch...

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OBSERVATIONS ON THE THREE ALLOPATRIC POPULATIONS OF THE MALUTI MINNOW, OREODAIMON QUATHLAMBAE (BARNARD) WITH NOTES ON ITS EVOLUTION, ECOLOGY, SPAWNING, AND CONSERVATION

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: S.R. Gephard --- , Lesotho

Meristics and pigmentation of specimens of Oreodaimon quathlambae from the three known populations were compared to determine whether the species has experienced divergent evolution. Pigmentation was found to vary substantially but meristics counts did not. A proposal is made-to recognise...

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MASS CULTURE OF MICROCYSTIS UNDER STERILE CONDITIONS

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: G. H.J. Krüger --- Botany Department, J.N. Eloff --- Botany Department,

The design and use of a 601 all-glass culture system for the mass production of Microcystis (or other unicellular algae) under sterile conditions, are described. Bleaching and lysis of the cells could be prevented by controlling the pH and CO2...

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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 Africa

A 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...

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THE OCCURRENCE OF MICROCYSTIS AERUGINOSA IN THE BOTTOM SEDIMENTS OF A SHALLOW EUTROPHIC PAN

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: M. Tow --- Department of Botany and Microbiology, South Africa

Sediment samples, collected from Jan Smuts Park Dam in Brakpan, Transvaal, during winter months were incubated in culture medium in the laboratory and found to contain viable Microcystis aeruginosa Kütz. emend. Elenkin colonies. The results obtained, indicate that the alga...

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CHEMICAL CHANGES IN THE GROWTH MEDIUM OF MICROCYSTIS, BATCH CULTURES GROWN AT STRESS AND NON-STRESS LIGHT INTENSITIES

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: G H J Krüger --- Botany Department, South Africa JN Eloff --- Botany Department, South Africa

The modified BG 11 growth medium used in this study has a poor buffer ability and large pH changes occurred during growth of Microcystis. Inhibition of growth in cultures grown at stress light intensity (26 μEinst m−2 sec−1) could be...

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EFFECT OF PHOSPHATE CONCENTRATION ON THE FINE STRUCTURE OF THE CYANOBACTERIUM, MICROCYSTIS AERUGINOSA KÜTZ. EMEND. ELENKIN

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: DerylJ. Barlow --- , South Africa W. L.J. van Rensburl --- , South Africa A. J.H. Pieterse --- , South Africa J.N. Eloff --- , South Africa

Microcystis aeruginosa toxic strain UV-006 stored a fixed amount of polyphosphate in spherical granules located in the centroplasm. Twenty four hours of phosphate starvation induced use of stored polyphosphate, manifested by reduction in granule numbers. Reintroduction of 2, 4 or...

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A COMPARISON OF MULTIPLE CONTAINER AND TUBULAR SYSTEMS FOR THE LARGE SCALE LABORATORY CULTURE OF UNICELLULAR ALGAE

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.N. Eloff --- Botany Department, South Africa G. H.J. Krüger --- Botany Department, South Africa A.J. van der Westhuizen --- Botany Department, South Africa

It is pointed out that due to its construction a tubular system has many advantages, compared to a multiple container system. The most important being the ease of manipulation and the higher yield of algal material. The tubular system has...

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UTILIZATION OF PLANT MATERIALS BY JUVENILE AFRICAN CATFISH (CLARIAS GARIEPINUS) AND ITS IMPORTANCE IN FISH CULTURE

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: Douglas Clay --- Department of Agriculture, Zimbabwe

Juvenile African catfish Clarias gariepinus between 100 and 200 mm total length from Lake McIlwaine, Zimbabwe are able to digest plant proteins. The digestibility of three major plant proteins (maize, sunflower seed and soya meal) was 30,0, 65,4 and 84,3%...

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ASPECTS OF THE GROWTH OF MICROCYSTIS AERUGINOSA ON AGAR

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.A. Pretorius --- Botany Department, South Africa J.N. Eloff --- Botany Department, South Africa

Microcystis aeruginosa could be grown only on four agarmedia tested even if the medium and agar were sterilised separately. The recovery varied from one experiment to another and between replicates, ranging from nil to more than 100%. Light intensities above...

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A SPECIFIC ULTRAVIOLET ABSORBANCE BAND OF MICROCYSTIS AERUGINOSA TOXINS

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.N. Eloff --- Department of Botany, South Africa

It could be shown that toxic fractions of Microcystis aeruginosa extracts always had a 240 nm absorbance band, There was a linear relationship between toxicity and UV absorbance at 240 nm of extracts from different isolates of Nicrocystis. One ml...

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TOXIN EXTRACTION FROM THE BLUE-GREEN ALGA MICROCYSTIS AERUGINOSA BY DIFFERENT EXTRACTION MEDIA

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: A.J. van der Westhuizen --- Department of Botany, South Africa J.N. Eloff --- Department of Botany, South Africa

The extractability of toxin from Microcystis aeruginosa isolate UV-006 by different extraction media such as O, 1N HC1, 2N CH3COOH, Triton X-100 and water at different pH levels was investigated. The best recovery of toxin was achieved with water at...

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CAROTENOID COMPOSITION AS TAXONOMIC CHARACTER FOR MICROCYSTIS ISOLATES

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: E.J. Smit G. H.J. Krüger J.N. Eloff

Nineteen Microcystis aeruginosa isolates, a Microcystis incerta and a Synechococcus grown under constant conditions were analyzed for pigment composition. The carotenoid composition of Microcystis incerta and a Synechococcus isolate differed markedly from that of the other isolates. Although there were...

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THE ZOOBENTHOS OF THE TOUW RIVER FLOODPLAIN

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: B.R. DAVIES --- Institute for Freshwater Studies, Republic of South Africa

An eighteen month study (January 1979 - June 1980) of the sediment, emergent and submerged plant-associated benthic macro-invertebrates of the western sector of the Touw River Flood-plain is reported for four study sites: Wilderness Lagoon, the Touw River and East...

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UNEXPECTED GROWTH OF PISTIA STRATIOTES IN SANYATI GORGE, LAKE KARIBA

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: R.F. du Toit --- University Lake Kariba Research Station, Zimbabwe

During early 1984, the floating plant Pistia stratiotes grew unexpectedly and very rapidly in the Sanyati Gorge of Lake Kariba. Measurements of phosphorus and nitrogen in the surface waters revealed a pattern of nutrient concentrations along the gorge that could...

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COUNTING NATURAL POPULATIONS OF MICROCYSTIS AERUGINOSA: A SIMPLE METHOD FOR COLONY DISRUPTION INTO SINGLE CELLS AND ITS EFFECT ON CELL COUNTS OF OTHER SPECIES

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: Tamar Zohary --- , Arcangela M. Pais Madeira --- ,

A rapid, high-speed blending method for disrupting colonies of the cyanobacterium Microcystis aeruginosa to single cells in preparation for cell counts is described. Cell counts obtained for treated samples of natural populations of M. aeruginosa from Hartbeespoort Dam did not...

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MODELS OF ECOSYSTEMS AND AQUATIC ENVIRONMENTS: DEVELOPMENT AND APPLICATION

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: B.R. Allanson --- , South Africa

An historical treatment of a number of principal events is given. This leads to an assessment of the current research approach in hydrobiology and its success in the development of process orientated ecosystem component models. With the contemporaneous development of...

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APPLICATION OF LAVSOE, AN EUTROPHICATION MODEL, TO BLOEMHOF DAM

Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.N. Rossouw --- ,

In 1985 the Department of Water Affairs introduced an effluent phosphate standard of 1 mg l−1 (as P) in seven potentially sensitive catchments. Although this is an uniform standard, permits can be granted for effluents to exceed the standard in...

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Leksikografiese hantering van seksuele uitdrukkings in Afrikaans

Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: Gerhardus Beukes van Huyssteen --- Departement Afrikaans en Nederlands, Republiek van Suid-Afrika

Leksikale items wat na aspekte van die seksuele domein verwys, lewer dikwels probleme op vir die leksikograaf. So byvoorbeeld is dit dikwels moeilik om die werking van uitbreidingsmeganismes soos metaforiek en metonimie in die leksikografiese bewerking van seksuele uitdrukkings te...

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ENVIRONMENTAL CORRELATES OF PLANT SPECIES DISTRIBUTION ON THE NYL RIVER FLOODPLAIN

Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: M. A.S. Coetzee --- Botany Department, South Africa K.H. Rogers --- Botany Department, South Africa

The envisaged construction of a dam on a major tributary of the Nyl River will alter the hydrological regime with consequent effects on the structure and functioning of the downstream floodplain ecosystem (Nylsvley). Attempts to minimise this impact will be...

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MANAGEMENT OPTIONS FOR SHALLOW HYPERTROPHIC LAKES, WITH PARTICULAR REFERENCE TO ZEEKOEVLEI, CAPE TOWN

Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: W.R. Harding --- , South Africa A. J.R. Quick --- , South Africa

Zeekocvlei, a freshwater coastal lake, is an important regional recreation area in the south-western Cape, South Africa. The lake is hypertrophic, experiences perenially dense populations of cyanobacteria (Microcystis), invasive bulrush and reed encroachment, and has a thick benthic layer of...

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SHORT-TERM IMPACTS OF FORMULATIONS OF BACILLUS THURINGIENSIS VAR. ISRAELENSIS DE BARJAC AND THE ORGANOPHOSPHATE TEMEPHOS, USED IN BLACKFLY (DIPTERA: SIMULIIDAE) CONTROL, ON RHEOPHILIC BENTHIC MACROINVERTEBRATES IN THE MIDDLE ORANGE RIVER, SOUTH AFRICA

Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: R.W. Palmer --- Department of Water Affairs and Forestry, South Africa

The impacts of larvicides used in the control of blackflies (Diptera: Simuliidae) on macroinvertebrates in the stones-in-current biotope were assessed during 8 field trials in the middle Orange River, South Africa. Two Bacillus thuringiensis var. israelensis (B.t.i.) products (VectobacR 12AS...

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DETRIMENTAL EFFECTS OF FENTHION (QUELETOX® UL), USED TO CONTROL RED-BILLED QUELEA (QUELEA QUELEA), ON RHEOPHILIC BENTHIC MACROINVERTEBRATES IN THE ORANGE RIVER

Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: R.W. Palmer --- Department of Water Affairs and Forestry, South Africa

The relative abundance of rheophilic macroinvertebrates in the Orange River was assessed before and 15 hrs after two aerial applications of fenthion (QUELETOX® UL) above roosting sites of the red-billed quelea (Quelea quelea). The first treatment had no detectable effect...

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THE USE OF TOXICITY TESTING IN EFFLUENT REGULATION AND CONTROL: A NEW DIMENSION TO ASSESSMENT AND MANAGEMENT OF WATER QUALITY IN SOUTH AFRICA

Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: D.J. Roux --- , South Africa

Efficient management tools are continually required to cope with increasing demands placed on the quality and quantity of aquatic resources. Recent developments in environmental monitoring indicate the importance of incorporating biological indicators in assessment programmes. Aquatic toxicology has consequently become...

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IMPACTS OF REPEATED APPLICATIONS OF BACILLUS THURINGIENSIS VAR. ISRAELENSIS DE BARJAC AND TEMEPHOS, USED IN BLACKFLY (DIPTERA: SIMULIIDAE) CONTROL, ON MACROINVERTEBRATES IN THE MIDDLE ORANGE RIVER, SOUTH AFRICA

Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: R.W. Palmer --- Department of Water Affairs and Forestry, South Africa A.R. Palmer --- , South Africa

The impacts of five consecutive treatments of blackfly larvicides on macroinvertebrates in the middle Orange River were assessed. The abundance of the midge Xenochironomus sp. and the limpet Burnupia sp. was lower at sites treated with Bacillus thuringiensis var. israelensis...

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Seasonal influence on diet selection of sheep grazing a weedy dryland lucerne pasture

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: T.S. Brand F. Franck J. Coetzee

The experiment was conducted to determine the seasonal effects on the availability, chemical composition and digestibility of a grazing dry-land lucerne pasture, as measured on samples either collected by hand or with oesophageally fistulated (OF) sheep. The pasture was monitored...

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Effect of plant height at cutting, source and level of fertiliser on yield and nutritional quality of Napier grass (Pennisetum purpureum (L.) Schumach.)

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: T Zewdu RMT Baars A Yami

Napier grass (Pennisetum purpureum (L.) Schumach.) was studied using a 5 x 3 factorial experiment arranged in a randomised complete block design with three replications. The treatments were five fertiliser applications (0kg ha-1 N, 46kg ha-1 N and 92kg ha-1...

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The influence of nitrogen and defoliation on digestibility and fibre content of Lolium multiflorum cv. Midmar

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JF Theron HA Snyman

The influence of different N fertiliser application levels (0, 150, 300 and 450kg N ha–1) in combination with different defoliation intervals (every 2, 4, 6 and 8 weeks and twice a season) on the digestibility and fibre component of ryegrass...

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Retraction and expansion of flock mobility in Central Asia: costs and consequences

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Carol Kerven Ilya Ilych Alimaev Roy Behnke Grant Davidson Leen Franchois Nurlan Malmakov Erik Mathijs Aidos Smailov Sayat Temirbekov Iain Wright

Seasonal and spatial fluctuations in forage quality, accessibility and output provide strong incentives for migratory stock keeping in Central Asia. Over the past century, mobile livestock husbandry has either been suppressed or collapsed and a fragmented pattern of rangeland use...

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The effect of defoliation environment on primary growth allocation and secondary tiller recruitment of two bunchgrasses

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: KW Tomlinson TG O'Connor

Compositional shifts of bunchgrass species in the Southern Tall Grassveld in response to different combinations of non-selective mowing and burning appear to reflect differences in growth strategy among species, but there are few studies of South African grasses designed to...

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Tackling 'the most avoided issue': communal rangeland management in KwaZulu-Natal, South Africa

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: MI Peden

Democratisation in 1994 resulted in a shift in state focus from white commercial farmers to small-scale and subsistence black farmers living in communal areas in South Africa. The LandCare Program of the National Department of Agriculture aimed to improve productivity...

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The logistic model-generated carrying capacities, maximum sustained off-take rates and optimal stocking rates for Kenya's commercial ranches

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JT Njoka PID Kinyua

This paper deals with the derivation of logistic models for cattle, sheep and goats in a commercial ranching system in Machakos District, Kenya, a savannah ecosystem with average annual rainfall of 589.3 ± 159.3mm and an area of 10 117ha...

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Dry matter yield and water use efficiency of five perennial subtropical grasses at four levels of water availability

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: D Marais N Rethman J Annandale

The effect of four levels of water availability on the yield and water use efficiency (WUE) of five subtropical perennial grasses was evaluated in a small plot trial under a rain shelter. The soil profiles were brought to 100% (W4...

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The effect of Browse Plus^™ on nutrient intake, rumen pH and digestibility of a sole diet of Leucaena leucocephala forage

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: MM Majuva-Masafu MJ Linington

The purpose of this study was to determine the neutralising effect of Browse Plus™ on condensed tannins in a sole diet of Leucaena forage and how that affected feed intake, rumen environment and passage of nutrients. Partial digestion methods were...

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The effect of feeding varying levels of Leucaena leucocephala on intake and digestibility of low-quality forages in the Highveld of South Africa

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: MM Majuva-Masafu MJ Linington

The purpose of this study was to determine the effect of varying levels of Leucaena supplement on the intake, flow and digestibility of nutrients of two low-quality forages. Partial digestion methods were used. The overall results showed that the supplementation...

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An evaluation of diet quality in two desert ungulates exposed to hyper-arid conditions

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: SR Henley D Ward

Desert-dwelling ungulates are frequently exposed to plant communities of poor nutritional quality and low abundance. We assessed the diet quality of a large-bodied non-ruminant, the Asiatic wild ass (Equus hemionus) and that of a small-bodied ruminant, the dorcas gazelle (Gazella...

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Towards identifying the fate of ¹⁵N applied in spring as ammonium nitrate fertiliser to a kikuyu pasture

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: G.D. Hefer --- Department of Grassland Science, Republic of South Africa D.C. Pretorius --- Department of Grassland Science, Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South Africa

Nitrogen was applied as ammonium nitrate in solution to kikuyu pasture at 225 kg N ha‐1, split into three equal dressings and applied in October, December and February. The first, at 75 kg N ha‐1 was labelled in the ammonium...

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The effects of mixed‐species grazing on the performance of cattle and sheep in Highland Sourveld

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

The performance of cattle and sheep in relation to cattle‐to‐sheep ratio was measured over four grazing seasons. Rainfall for the first three grazing seasons was similar to the long‐term mean of 790 mm whilst 1992/1993 was a relatively low rainfall...

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Chemical composition and in vitro dry matter digestibility of various utilization forms of grain sorghum residues

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: L.D. Snyman --- , Republic of South Africa H.W. Joubert --- , Republic of South Africa

The chemical composition and in vitro dry matter digestibility (IVDMD) of various utilization forms of grain sorghum residues were investigated. Two grain sorghum cultivars, SNK 3640 (bitter tasting) and Pioneer 8564 (sweet tasting), were used. Each taste type was grown...

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Long‐term effects of different rotational grazing schedules on the productivity and floristic composition of Tall Grassveld in KwaZulu‐Natal

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: C.D. Morris --- Department of Grassland Science, Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South Africa

Nine simulated rotational grazing systems, comprising combinations of three different periods of occupation (2, 10 and 20 days) and three periods of absence (20, 40 and 60 days), were applied to Tall Grassveld for 24 years (1967–1991), using sheep. All...

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Predicting animal production on sourveld: A species‐based approach

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.J. O'Reagain --- , Republic of South Africa

A simulation model was developed to predict average daily gain (ADG) in cattle and sheep grazing different species and swards of different species composition on Dohne Sourveld. The model was based upon measured ingestive and digestive characteristics of different grass...

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Responses of productive and unproductive kikuyu pastures to top‐dressed nitrogen and phosphorus fertiliser

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: N. Miles --- KwaZulu‐Natal Department of Agriculture, Republic of South Africa

In South Africa there is widespread reliance on kikuyu grass as a source of summer forage for intensive dairy, beef and sheep enterprises. There is, however, a dearth of reliable information on the fertility requirements of kikuyu pastures. Responses of...

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Effect of maturity stage and method of preservation on the yield and quality of babala

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: L.D. Snyman --- , South Africa H.W. Joubert --- , South Africa

The effect of maturity stage on the total yield (all harvests throughout the season) of some forage components and on the chemical composition and in vitro dry matter digestibility (IVDMD) (first harvest) of babala, was investigated. The effects of various...

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Effect of cutting height and frequency on Leucaena leucocephala forage and wood production

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J.P. Muir --- , Mozambique

Leucaena leucocephala is a fast‐growing tree that can provide both high quality forage and firewood. The objective of this trial was to determine the optimum height and frequency of cutting for both wood and forage production. Cutting heights at 0.3...

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The reliability of a field test kit for the detection and the persistence of Synergistes jonesii bacteria in the rumens of sheep through winter droughtin the Highveld of South Africa without Leucaena in the diet

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: MM Masafu --- Department of Agriculture, Animal Health and Human Ecology, College of Agriculture and Environmental Sciences, South Africa MJ Linington --- Department of Agriculture, Animal Health and Human Ecology, College of Agriculture and Environmental Sciences, South Africa

The reliability of a field test kit for the detection and the persistence of Synergistes jonesii bacteria in sheep was investigated in two trials for 12 months. The test kit consisted of a culture medium (Fe2), serum test tubes, disposable...

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Botanical composition, yield and nutritional quality of grassland in relation to stages of harvesting and fertiliser application in the highlands of Ethiopia

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Z Tessema --- Department of Animal Sciences, Ethiopia A Ashagre --- , Ethiopia M Solomon --- Debre Zeit Agricultural Research Centre, Ethiopia

Livestock production contributes to the livelihoods of the Ethiopian people; however, the productivity of the livestock subsector in the highlands is low due to malnutrition. Therefore, this study assessed the botanical composition, dry matter (DM) yield, chemical composition and in...

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Municipal commonage in South Africa: a critique of artificial dichotomies in policy debates on agriculture

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Doreen Atkinson --- Centre for Development Support, South Africa

The paper critiques Vetter's (in this issue) assertion that commercialisation of smallholder agriculture holds dangers for sustainable rangeland management. The paper argues that a range of policy options are required, including commercialisation and subsistence farming, large-scale and smallholder farming, a...

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Soil fertility management in pasture small-plot trials: potential pitfalls

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: N. Miles M.B. Hardy

Small-plot cutting trials are of particular importance in research relating to intensive pastures. Undetected changes in soil fertility during the course of experimentation may detract from the validity of results in trials of this kind. Information from field trials conducted...

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Precision and accuracy of sward height distributions

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: C.D. Morris P.J.K. Zacharias J.F. Derry

Double normal distributions can be used to resolve many sward height frequency distributions into two components representing the 'short' (patches) and 'tall' (non∼patches) areas in the sward. The effect of sample size on the precision and accuracy of parameters of...

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The effect of harvesting operations, slash management and fertilisation on the growth of a Eucalyptus clonal hybrid on a sandy soil in Zululand, South Africa

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: ColinW Smith Ben du Toit

Harvesting operations during clearfelling and extraction of timber from commercial plantations result in many processes that may affect long-term site productivity such as soil compaction and residue manipulation. The objective of this work was to evaluate the effects of various...

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Production speed effects on log-making error rates and value recovery for a mechanized processing operation in radiata pine in New Zealand

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: G.E. Murphy H.D. Marshall A.W. Evanson

Mechanized processing operations are complex "man-machine" systems. The impacts of changes to work practices are, therefore, dependent on the effects the changes have on both the machine and the man. A mechanized processor, delimbing and cutting tree length stems into...

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Age determination of miombo species Brachystegia spiciformis (Leguminosae – Caesalpinoideae) in Zimbabwe using growth rings

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: I.M. Grundy

The objective of this study was to determine whether Brachystegia spiciformis Benth. (Leguminosae – Caesalpinoideae), one of the dominants of dry miombo woodland in Zimbabwe, forms annual growth rings. In the past the production of effective cutting rotations and sound...

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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. Bokosi

Uapaca 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...

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The Nutritive Value of Tagasaste, a Leguminous Fodder Tree, in Marginal Summerrainfall Areas of South Africa

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: J.P. Lindeque --- , N. F.G. Rethman --- Department of Plant Production and Soil Science, Republic of South Africa

Tagasaste (Chamaecytisus palmensis) was evaluated on a monthly basis for nutritive value: in vitro digestibility of organic matter (IVDOM), crude protein (CP), acid detergent fibre (ADF), neutral detergent fibre (NDF) and lignin. Tagasaste is able to produce highly digestible leaves...

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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...

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Domestic Workers' Experiences of Power and Oppression in South Africa

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Fiona M. Donald --- School of Human and Community Development, University of the Witwatersrand, Lerato Mahlatji --- School of Human and Community Development, University of the Witwatersrand,

This study examines the work experiences of domestic workers in the context of socio-economic-political legislation promulgated to protect their social rights in the new South Africa. It gains insight into the power relations and embedded tensions between employers and domestic...

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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 Mdaka

We 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...

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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...

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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...

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Heroin Dependence Recovery

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Monika dos Santos --- University of South Africa, Fred van Staden --- University of South Africa,

The consequences of heroin dependence can be extremely difficult to escape from, resulting in unpleasant and potentially terrifying experiences. This descriptive study explores the factors which are important in achieving abstinence, in allowing recovery to be maintained in the longer...

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Perceptions of High-risk Sex Among Men and Women Attending an STI Clinic in Cape Town, South Africa

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kelvin Mwaba --- University of the Western Cape, Leickness C. Simbayi --- Human Sciences Research Council, Seth C. Kalichman --- University of Connecticut,

The widespread occurrence of sexually transmitted infections (STI's) among young adults in South Africa suggests that there is a need to increase safe sex practices among those who are sexually active. Given the high rate of HIV infection in the...

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Screening and Brief Advice for Risky Substance Users among Charismatic and Main Stream Churches in South Africa

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council & University of the Free State,

The aim of the study was to investigate screening and brief advice for risky substance users among charismatic and main stream churches in South Africa. The sample included 117 clergy (63 from charismatic and 54 from mainstream churches) chosen randomly...

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Reasons and Justifications Used by Child Abuse Perpetrators in Zimbabwean Schools

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Almon Shumba --- University of Fort Hare, South Africa

This study sought to determine reasons and justifications used by child abuse perpetrators as viewed by education officers who handle and process cases of child abuse by teachers in Zimbabwe. Six education officers were interviewed. They were purposefully selected for...

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Gender-Based Domestic Violence against Children: Experiences of Girl-Children in Nigeria

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mary O. Esere --- University of Ilorin, Nigera Adeyemi I. Idowu --- University of Ilorin, Nigera Joshua A. Omotosho --- University of Ilorin, Nigera

This study investigated the dynamics of gender-based domestic violence against children in Nigeria. This qualitative study explored the experiences of 20 purposively selected girl-children (age range = 12 to 15 years) from two SOS Children's Village who have been victims...

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Estimating One's Own and Others' Multiple Intelligence: A Cross-Cultural Study from Guinea Bissau and Portugal

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Félix Neto --- Universidade do Porto, Portugal Adrian Furnham --- Department of Psychology, UK Maria da Conceição Pinto --- Universidade do Porto, Portugal

This study examined the estimations of multiple intelligences for self, partner and parents. One hundred and fifty two students (males = 81, females = 68, and 3 have not indicated their sex; mean age = 24.02, SD = 3.08) from...

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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 Africa

This 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...

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Psychometric Properties of the Short Self-Regulation Questionnaire (SSRQ) in a South African Context

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan C. Potgieter --- North-West University, South Africa Karel F.H. Botha --- North-West University, South Africa

Self-regulation (SR), an important construct within the psychological well-being context, involves the ability to monitor behaviour, to contrast it with reference values and to introduce adjustments where necessary. A lack of validated measures of SR in the South African context...

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Developing a Basic Mathematics Questionnaire for Grades 4 to 7

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marthie S. van der Walt --- North-West University, South Africa Jacobus G. Maree --- North-West University, South Africa Suria M. Ellis --- North-West University, South Africa

In this article, the authors report on the development of a basic mathematics questionnaire for Grades 4 to 7 (the BM(P)). The provisional instrument was completed by 1,103 Afrikaans-, English-and Tswana-speaking learners in Grades 4 to 7 in the North-West...

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Abused Women in South Africa who Kill their Intimate Male Partners: A Psychological Exploration

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gertie Pretorius --- University of Johannesburg, South Africa Monique Bester --- University of Johannesburg, South Africa

The aim of this study was to explore psychological risk factors that may precipitate the murder of a partner by an abused woman. In this article, the authors use multiple case studies and interviews with three women incarcerated for the...

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Lay Counsellor-Based Risk Reduction Intervention with HIV Negative Diagnosed Patients at HIV Counselling and Testing Sites in a Rural South African Setting

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council, South Africa, University of the Free State, South Africa Cily Tabane --- Human Sciences Research Council, South Africa Gladys Matseke --- Human Sciences Research Council, South Africa Leickness Simbayi --- Human Sciences Research Council, South Africa

The study evaluated the feasibility, fidelity, and effectiveness of a human immunodeficiency virus (HIV) prevention intervention delivered to HIV-uninfected patients by lay counsellors during routine HIV counselling and testing (HCT) service in Mpumalanga, South Africa. Participants were 543 HIV negative...

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Testimony of Children in the Criminal Justice Environment

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- University of South Africa,

Child development and memory are of relevance to court testimony. There appears to be scant research pertaining to the competency of children as witnesses in criminal proceedings. However, there is concern in both the legal and psychological circles about the...

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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...

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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...

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The Problem of Identifying and Diagnosing Adult Attention Deficit Hyperactive Disorder (AADHD): Results and Implications of a South African Study

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Alban Burke --- University of Johannesburg, Tracey-Lee Austin --- University of Johannesburg,

In this study an attempt is made to design a more South African relevant self-report questionnaire. In attempt to design such an instrument 402 undergraduate Psychology students responded to an online survey in which they completed a number of existing,...

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Adult ADHD in a Student Population: Preliminary Findings

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Alban Burke --- University of Johannesburg, Tracey-Lee Austin --- University of Johannesburg, Chantal Waldeck --- University of Johannesburg,

The study provides preliminary findings about the likely prevalence rates of ADHD in a South African student population. Data collected using self-report measures to identify symptoms of this disorder, are reported. Participants were 402 undergraduate psychology students. They completed the...

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The Lived Experiences of Sex Workers in South Africa: An Existential Phenomenological Exploration

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gertie Pretorius --- University of Johannesburg, Dale Bricker --- University of Johannesburg,

We explored the lived experiences of sex workers in South Africa by employing a phenomenological methodology. Five women between the ages of 34 and 48 years who were/are involved in this industry were interviewed between January and March 2008. Through...

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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 Africa

This 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...

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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...

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Exploring Mindfulness in Self-Injuring Adolescents in a Psychiatric Setting

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Rümando Kok --- North-West University, South Africa Doret K. Kirsten --- North-West University, South Africa Karel F.H. Botha --- North-West University, South Africa

This study explored mindfulness amongst eight self-injuring psychiatric adolescents. A mixed-method design was used. Interviews and clinical records comprised the qualitative data, while quantitative data was gathered using the Five-Facet Mindfulness Questionnaire (FFMQ: Baer, Smith, Hopkins, Krietemeyer & Toney, 2006)...

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Caring for a Relative with Schizophrenia: Understandings, Challenges and the Interface with Mental Health Professionals

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Stanley Molefi --- Stellenbosch University, South Africa Leslie Swartz --- Stellenbosch University, South Africa

This study explored the experiences of families of people with schizophrenia, their understandings of schizophrenia as a mental disorder, their experience of living with a relative with schizophrenia, and their subsequent contact with mental health professionals. A convenience sample of...

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Tomatis Method Stimulation: Effects on Student Educational Interpreters

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ina-Marí du Toit --- North-West University, South Africa Wynand F. du Plessis --- North-West University, South Africa Doret K. Kirsten --- North-West University, South Africa

This study explored the impact of the Tomatis Method of sound stimulation on student interpreters at a merged higher education institution in South Africa. Interpreters were randomly allocated to a pre-post, experimental (n=9) and non-intervention control group (n=9) (age range...

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Spirituality and Religion in Antiretroviral Therapy (ART) in Kwazulu-natal, South Africa: A Longitudinal Study

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council, Pretoria and University of Limpopo,

This study assesses the effects of spirituality and religion in health outcomes of patients on ART in KwaZulu-Natal, South Africa. Participants were 735 patients who attended three HIV clinics for ART over a period of 20 months as follows: 519...

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“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 Africa

In 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...

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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...

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Sexual Responsibility Among Mozambican Adults

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Germano Vera Cruz --- University of Toulouse II, France Etienne Mullet --- Institute of Advanced Studies, France

We studied sexual responsibility among Mozambican adults living in the area of Maputo (n=451; Mozambican age range = 18–35 years; females= 218; males = 233). Participants completed the Sexual Practice/Sexual Responsibility scale (Hendrick & Hendrick, 1987,1995). Data were analyzed using...

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Childhood Exposure to Community and Domestic Violence: Prevalence, Risk Factors and Posttraumatic Outcomes in a South African Student Sample

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Steven J. Collings --- University of KwaZulu-Natal, South Africa

The effects of exposure to direct and vicarious community and domestic violence on the posttraumatic adjustment of 323 South African students were examined. Data were collected using self-administered questionnaires, with the relationship between exposure to violence and posttraumatic outcomes being...

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Prevalence of Alcohol Use and Associated Factors in Pregnant Antenatal Care Attendees in Mpumalanga, South Africa

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Julia Louw --- Human Sciences Research Council, South Africa Karl Peltzer --- Human Sciences Research Council, South Africa Gladys Matseke --- Human Sciences Research Council, South Africa

We sought to identify the prevalence of alcohol use and associated factors among pregnant women who were patients at antenatal primary care clinics in a South Africa health district. A cross-sectional study using systematic sampling was conducted among 1497 pregnant...

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Online Support Service via Mobile Technology—a Pilot Study at a Higher Education Institution in South Africa

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Birgit Schreiber --- University of the Western Cape, South Africa Kjersti Aartun --- University of the Western Cape, South Africa

This study describes the findings of a pilot study of an online support service via mobile technology using chat facilities at a Higher Education Institution in South Africa. The online support service, accessible via cell phone chat and computer chat...

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Perceived Sexual Harassment Among Female Students at a Zimbabwean Institution of Higher Learning

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Thelma Dhlomo --- Great Zimbabwe University, Zimbabwe Rose M. Mugweni --- Great Zimbabwe University, Zimbabwe Gwen Shoniwa --- Great Zimbabwe University, Zimbabwe Levison Maunganidze --- Midlands State University, Zimbabwe Tholene Sodi --- University of Limpopo, South Africa

This study analysed perceived sexual harassment experiences and responses among 136 female students (aged 19 to 40) randomly drawn from an institution of higher learning in Zimbabwe. A Sexual Harassment Questionnaire (SEQ) was administered to the participants. Data were summarized...

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Psychometric Properties of a Measure of Resilience Among Middle-Adolescents in a South African Setting

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ruth Mampane --- Faculty of Education,

This study reports on the reliability of scores and the structural properties of a resilience measure used with adolescents from a low resource South African neighbourhood. The Resilience Questionnaire for Middle-Adolescents in Township Schools (R-MATS) was administered to 213 Black,...

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The Optimism Bias: Is It Adaptive In Academic Settings?

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Caryl Ochse --- University of South Africa,

This study investigated whether optimism was adaptive or maladaptive in an academic context. Participants were 715 psychology students with a large open and distance education university in South Africa (age range 20 to 61, average age 31 years, women =...

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The Factor Structure and Reliability of a Six-Item Sense of Coherence Measure

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Antoni Barnard --- University of South Africa, Helene Muller --- University of South Africa,

The study investigated the factor structure and reliability of a six-item sense of coherence (SOC) measure. Participants were a South African white collar employee sample (n=7185) purposively selected from over 300 different companies across various business sectors. The sample constituted...

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Troubling Discourse: The Social Justice Approach Towards Combating HIV and AIDS Stigmatisation Among Adolescents

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Christa Beyers --- University of the Free State, Milton Nkoane --- University of the Free State,

This study investigated the experiences of adolescents living with HIV and AIDS. Interviews were conducted with ten black female adolescents who were diagnosed HIV-positive to determine the effect of positive diagnosis on their being. Three of the participants chose to...

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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...

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Job Characteristics That Influence the Career Success of Soldiers in the South African National Defence Force: An Analytical Review

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nondlela Ditsela --- Stellenbosch Univerity, South Africa Gideon Van Dyk --- Stellenbosch Univerity, South Africa

Career success for solders is influenced by objective and subjective job qualities including their antecedents and mediators. This article considers the objective and subjective indicators of career success in the context of the South African National Defence Force (SANDF): achievement,...

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Women Who Kill in Post-Apartheid South Africa: A Content Analysis of Media Reports

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gertie Pretorius --- University of Johannesburg, Brandon Morgan --- University of Johannesburg,

The purpose of this study was to explore and describe the biographical background and nature of the murder of women who have killed in post-apartheid South Africa. Archival newspaper data were examined and analysed for incidence of murders, the relationships...

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Work Related Well-Being: Burnout, Work Engagement, Occupational Stress and Job Satisfaction Within a Medical Laboratory Setting

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kalashni Narainsamy --- University of South Africa, Sanet Van Der Westhuizen --- University of South Africa,

This study investigated work-related well-being in a medical laboratory setting. A cross-sectional survey design was used to gather data from a convenience sample of 202 medical laboratory staff (females = 35.64%; majority ethnicity = Indian). Participants completed the Burnout Inventory—General...

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Holistic Psychology: A Brief Primer

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Stephen D. Edwards --- University of Zululand, South Africa

This article explicates the foundations, essential themes and healing principles of holistic psychology; an approach which provides a corrective for such trends in modern scientific psychology as disciplinary perspectives, the overemphasis on the economics and politics of professionalism. Holistic psychology...

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Measures of affinity of a sequence for a number

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Fatih Nuray WilliamH. Ruckle

We define strong and weak affinities of a number a for a sequence (xk ) denoted by L (a,(xk )) and U (a, (xk )) respectively. We show U (a,(xk )) > 0 if and only if the number a...

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Completion of Probabilistic Uniform Limit Spaces

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Harald Nusser

In this article completions of special probabilistic semiuniform convergence spaces are considered. It turns out that every probabilitic Cauchy space under a given t-norm T (triangular norm) has a completion which, in the special case of probabilistic Cauchy spaces with...

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Some Consequences of An Identity Of B. Gordon

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Neville Robbins

Using some consequences of the quintuple product identity, we obtain the identity:

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The Borsuk-Ulam theorem for surfaces

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: DacibergL. Gonçalves

Given a pair (S, T) whereS is a closed surface and T is a free Z 2 action on S, we classify which pairs have the property that the Borsuk-Ulam theorem holds with respect to R 2. In particular if...

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Lattice-Valued Cauchy Spaces and Completion

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Gunther Jäger --- Department of Statistics, South Africa

We define lattice-valued Cauchy spaces. The category of these spaces is topological over SET and cartesian closed. Special examples are lattice-valued uniform convergence spaces and probabilistic Cauchy spaces. We further define completeness and give a completion for these spaces which...

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Cavalieri integration

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: E.R. Ackermann --- Computational and Applied Mathematics Department, USA T.L. Grobler --- Department of Electrical, Electronic and Computer Engineering, South Africa W. Kleynhans --- Department of Electrical, Electronic and Computer Engineering, South Africa J.C. Olivier --- School of Engineering, Australia B.P. Salmon --- Department of Electrical, Electronic and Computer Engineering, South Africa A.J. van Zyl --- Department of Mathematics and Applied Mathematics, South Africa

We use Cavalieri's principle to develop a novel integration technique which we call Cavalieri integration. Cavalieri integrals differ from Riemann integrals in that non-rectangular integration strips are used. In this way we can use single Cavalieri integrals to find the...

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Locally convex cones and the Schröder-Simpson theorem

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Klaus Keimel --- Fachbereich Mathematik, Germany

This paper paper has two goals: Firstly, to present the conceptual proof of the Schröder-Simpson theorem. The Schröder-Simpson theorem is stated in terms of domain theory and uses directed complete partially ordered cones and Scott-continuous maps. These structures are used...

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Selmer groups in twist families of elliptic curves

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ilker Inam --- Faculty of Art and Science, Department of Mathematics, Bursa-Turkey

The aim of this article is to give some numerical data related to the order of the Selmer groups in twist families of elliptic curves. To do this we assume the Birch and Swinnerton-Dyer conjecture is true and we use...

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HIV/AIDS and the South African Bill of Rights, with specific reference to the approach and role of the courts

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: JohnC Mubangizi

An outstanding feature of the 1996 South African Constitution is the inclusion of a Bill of Rights, which contains all the categories of human rights that are ordinarily included in most international human rights instruments. Section 27 provides for, among...

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Sex, disease and stigma in South Africa: historical perspectives

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Peter Delius Clive Glaser

This paper attempts to analyse historically why stigma and denial around HIV/AIDS is so powerful in South Africa, so powerful that ailing family members can be shunned and evicted. For many observers, the answer lies simply in its being a...

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Prevalence of HIV infection among premarital couples in southeast Nigeria

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Odie Ugochukwa Umeora Chidi Esike

The Catholic Church in Nigeria offers premarital HIV screening to couples, yet instances of voluntary screening are rare in southeast Nigeria. This study examines the contribution of such tests to HIV detection, and evaluates the prevalence of HIV infection in...

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HIV/AIDS, childhood and governance: sundering the bonds of human society

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Tony Barnett

There is a disharmonious resonance between the length of HIV infection in the individual human host and the length of a human generation. In brief, an infected person may have children, these may be orphaned and grow up to become...

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Positioning children and institutions of childcare in contemporary Uganda

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Catrine Christiansen

Currently more than half the population of Uganda is under 18 years — a demographic dispensation caused by civil war, poverty, high fertility rates, and the AIDS epidemic. Drawing upon ethnographic research in south-eastern Uganda, the study analyses the difficulties...

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HIV disclosure and other factors that impact on adherence to antiretroviral therapy: the case of Soweto, South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: NokuthulaL Skhosana Helen Struthers GlendaE Gray JamesA McIntyre

Some authors argue that there are no predictors of adherence to medication, while others proffer indicators of likely adherence. These contextual factors are wide-ranging and may be interdependent. There are few studies of adherence in resource-poor settings. Of these, many...

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Knowing but not knowing: providing maternity care in the context of HIV/AIDS in rural Zimbabwe

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Thubelihle Mathole Gunilla Lindmark Beth Maina Ahlberg

Individual interviews with 25 nurses and midwives revealed their experiences with providing maternity care in rural Zimbabwe. These first-hand accounts especially illuminate the complexities of providing maternity care in the context of HIV/AIDS. The caregivers described feeling troubled by knowing...

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Wits University's response to HIV/AIDS: flagship programme or 'tramp steamer'?

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Murray Cairns David Dickinson Wendy Orr

HIV/AIDS is a threat to the creation of human capital and development prospects in southern Africa and South Africa. The University of the Witwatersrand (Wits) is a well-regarded institution of higher education in Johannesburg. This paper outlines the university's qualified...

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Community impact of HIV status disclosure through an integrated community home-based care programme

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Busisiwe Ncama Leana Uys

The integration of HIV-prevention activities into care has received little attention within or outside formal healthcare settings. The contribution of community home-based care services in facilitating disclosure of HIV status and reducing stigma have also not been described. This study...

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Knowledge and perception of HIV/AIDS among pregnant women attending antenatal clinics in Ogun State, Nigeria

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: AdeniyiK Adeneye MargaretA Mafe AdejuwonA Adeneye KabiruK Salami WilliamR Brieger MusbauA Titiloye TaiwoA Adewole PhilipU Agomo

Mother-to-child transmission of HIV (MTCT) is responsible for more than 90% of the cases of HIV infection in infants and children in sub-Saharan Africa. Accurate data on the knowledge and perceptions of HIV/AIDS among women attending antenatal clinics in Nigeria...

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Occupational stress experienced by caregivers working in the HIV/AIDS field in South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: AltaC van Dyk

The burden of HIV on caregivers is especially heavy in South Africa where an estimated 5.5 million people were living with HIV in 2006, and where an estimated one in every three to four patients admitted to some public hospitals...

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Misconceptions about HIV prevention and transmission in Botswana

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gobopamang Letamo

Misconceptions 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...

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The protective effect of male circumcision on HIV infection in a sample of Kenyan men

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: YanyiK Djamba LaToyaS Davis

This article examines the association between male circumcision and HIV infection in a national sample. The analysis is based on the 2003 Kenya Demographic and Health Survey (KDHS), a nationally representative household-based population survey of adults, in which male respondents...

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Responses to VCT for HIV among young people in Kampala, Uganda

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Eva-Britta Råssjö Elisabeth Darj Joseph Konde-Lule Pia Olsson

Attitudes to voluntary counselling and testing (VCT) for HIV among young men and women in a slum area of Kampala, Uganda, were studied through 22 individual semi-structured interviews and 5 focus group discussions. Attitudes to VCT ranged from having no...

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Short-term effects of a peer group intervention for HIV prevention among trainee teachers in Malawi

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: KathleenF Norr JamesL Norr ChrissiePN Kaponda SitingawawoI Kachingwe EllenMD Mbweza

This report describes the implementation and short-term results of a peer group intervention for HIV prevention on the HIV-related attitudes, knowledge and behaviours of primary school teachers in Malawi. The intervention, based on the social-cognitive learning model, took place in...

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Necessity and sufficiency in the aetiology of HIV/AIDS: The science, history and politics of the causal link

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ulrike Kistner --- , South Africa

An earlier version of this paper was presented at the AIDS in Context Conference, University of the Witwatersrand, Johannesburg, 4–7 April 2001

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AIDS, individual behaviour and the unexplained remaining variation

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Alison Katz --- , Switzerland

From the start of the AIDS pandemic, individual behaviour has been put forward, implicitly or explicitly, as the main explanatory concept for understanding the epidemiology of HIV infection and in particular for the rapid spread and high prevalence in sub-Saharan...

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Adherence to antiretroviral therapy among HIV-infected children attending a donor-funded clinic at a tertiary hospital in Nigeria

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Edna Iroha --- Department of Paediatrics, College of Medicine, Nigeria Christopher Imokhuede Esezobor --- Department of Paediatrics, College of Medicine, Nigeria Chinyere Ezeaka --- Department of Paediatrics, College of Medicine, Nigeria Edamisan Olusoji Temiye --- Department of Paediatrics, College of Medicine, Nigeria Adebola Akinsulie --- Department of Paediatrics, College of Medicine, Nigeria

The success of antiretroviral therapy (ART) depends on a high level of adherence to a life-long regimen of antiretroviral drugs (ARVs). Since the scale-up of access to ARVs in Nigeria, few studies have determined the level of adherence of ART...

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Quality of life of people living with HIV/AIDS and on highly active antiretroviral therapy in Ethiopia

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kebede Abera --- School of Pharmacy, Ethiopia Teferi Gedif --- School of Pharmacy, Ethiopia Ephrem Engidawork --- School of Pharmacy, Ethiopia Tsige Gebre-Mariam --- School of Pharmacy, Ethiopia

The Amharic version of the Short Form-36 Health Survey (SF-36) was used to measure quality of life among patients on highly active antiretroviral therapy (HAART) at selected governmental hospitals in central and southern Ethiopia. The study was cross-sectional and used...

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Positive care? HIV and residential care for children in South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Susan Moses --- , South Africa Helen Meintjes --- , South Africa

Responses to the HIV epidemic leading to an increase in the number of residential care facilities for children across sub-Saharan Africa have prompted concerns that large numbers of orphaned children are being placed in institutional care. There is little empirical...

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Factors affecting first-month adherence to antiretroviral therapy amongHIV-positive adults in South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Dikokole Maqutu --- School of Statistics and Actuarial Science, South Africa Temesgen Zewotir --- School of Statistics and Actuarial Science, South Africa Delia North --- School of Statistics and Actuarial Science, South Africa Kogieleum Naidoo --- Centre for the AIDS Programme of Research in South Africa (CAPRISA), South Africa Anneke Grobler --- Centre for the AIDS Programme of Research in South Africa (CAPRISA), South Africa

This study explores the influence of baseline factors on first-month adherence to highly active antiretroviral therapy (HAART) among adults. The study design involved a review of routinely collected patient information in the CAPRISA AIDS Treatment (CAT) programme, at a rural...

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HIV/AIDS fatalism, beliefs and prevention indicators in Gabon:comparisons between Gabonese and Malians

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: RosannaF Hess --- , United States Martin Mbavu --- , United States

HIV/AIDS fatalism may impact on individuals’ health-seeking behaviour and HIV-prevention efforts. This descriptive study measured levels of HIV/AIDS fatalism and documented HIV/AIDS beliefs and practices among a sample of Gabonese and Malians living in Gabon, West Africa. The Powe Fatalism...

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Assessing cognitive-linguistic abilities in South African adults living with HIV: the Cognitive Linguistic Quick Test

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Anniah Mupawose --- School of Human and Community Development, Speech Pathology and Audiology Department, South Africa Yvonne Broom --- School of Human and Community Development, Psychology Department, South Africa

HIV can cross the blood-brain barrier to enter the central nervous system. This results in cognitive deficits in the majority of patients. The assessment of these deficits and management of these patients poses challenges for healthcare workers in South Africa...

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African communalism and public health policies: the relevance ofindigenous concepts of personal identity to HIV/AIDS policies in Botswana

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kipton Jensen --- Department of Philosophy and Religion, United States JosephBR Gaie --- Department of Religious Studies, Theology and Philosophy, Botswana

This article explores the possible relevance of African communalism to HIV/AIDS policies in Botswana and other parts of sub-Saharan Africa. We examine various interpretations of African communalism, which many consider to be the cardinal insight of African thought. We suggest...

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Disclosure among HIV-positive women: the role of HIV/AIDS support groups in rural Kenya

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: HannahJ Gillett --- , United Kingdom Jennifer Parr --- , United Kingdom

Disclosure by people living with HIV or AIDS is critical for HIV prevention and care. However, many women choose not to disclose their HIV status for fear of negative outcomes, such as blame and rejection. The World Health Organization suggests...

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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 Kingdom

Increasing 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...

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Church mobilisation and HIV/AIDS treatment in Ghana and Zambia:a comparative analysis

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: AmyS. Patterson --- Department of Political Science, United States

This article compares Ghanaian and Zambian church mobilisation on HIV and AIDS. It analyses why long-term interest in HIV and AIDS has declined in Ghana but increased in Zambia, and why church involvement in promoting access to HIV/AIDS treatment has...

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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 Netherlands

The 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...

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Christian theology of life, death and healing in an era of antiretroviraltherapy: reflections on the responses of some Botswana churches

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lovemore Togarasei --- Department of Theology and Religious Studies, Botswana

This article discusses Christian understandings of life, death and healing in the context of antiretroviral (ARV) therapy. The discussion is a response to the reactions of some Botswana Pentecostal and African Independent Churches to the availability of ARV therapy, as...

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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 Netherlands

Many 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...

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Delays in presenting for tuberculosis treatment associated with fear of learning one is HIV-positive

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Valerie Møller --- , South Africa Ida Erstad --- , South Africa JaneM Cramm --- , The Netherlands AnnaP Nieboer --- , The Netherlands Harry Finkenflügel --- , The Netherlands Sarah Radloff --- Department of Statistics, South Africa Tinashe Ndoro --- Department of Psychology, South Africa StellaA Kwizera --- Department of Sociology, South Africa

A cornerstone of tuberculosis (TB) control is early diagnosis and treatment. The first hurdle that prospective TB patients must overcome is to present at a public health clinic for treatment. The Global Plan to Stop TB addresses the new challenges...

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A qualitative exploration of the impact of HIV and ART on social disruption and household continuity in Uganda

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Glenn Wagner --- , United States Gery Ryan --- , United States Alexis Huynh --- , United States Cissy Kityo --- , Uganda Peter Mugyenyi --- , Uganda

With increased uptake of antiretroviral therapy (ART) throughout sub-Saharan Africa, it is critical to have a better understanding of the impact of ART on all health dimensions since the treatment can have the expected benefits as well as unintended negative...

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The influence of antiretroviral treatment on willingness to test: a qualitative study in rural KwaZulu-Natal, South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Zipho Phakathi --- , South Africa Heidi Van Rooyen --- , South Africa Katherine Fritz --- , United States Linda Richter --- , South Africa

Previous quantitative studies suggest a mutually reinforcing relationship between HIV counselling and testing (HCT) and antiretroviral treatment (ART). HCT is the entry into ART, and access to ART appears to increase HIV-testing uptake in settings with historically low uptake. Adopting...

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Kenyan pastors’ perspectives on communicating about sexual behaviour and HIV

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ann Neville Miller --- , United States MaryN Kizito --- , United States Jesica Kinya Mwithia --- , United States Lucy Njoroge --- , United States Kyalo wa Ngula --- , United States Kristin Davis --- , United States

The article presents an analysis of in-depth interviews with 18 leaders of Christian churches in Nairobi, Kenya, regarding the content and context of messages they disseminate to their congregations about sexual behaviour and HIV. The content of messages was nearly...

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Employment discrimination and HIV stigma: survey results from civil society organisations and people living with HIV in Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Laurel Sprague --- Department of Political Science, United States Sara Simon --- , Belgium Courtenay Sprague --- Graduate School of Business Administration, South Africa

The article presents findings from three surveys of people living with HIV (PLHIV) and civil society organisations about the experience of employment discrimination and stigma in the workplace. The work seeks to contribute to efforts by businesses and other organisations...

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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 States

We 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...

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Analysis of factors associated with failure to return for an HIV-test result in The Gambia

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Catherine Sesay --- Department of Psychology, School of Arts and Science, The Gambia Li-Yin Chien --- , Taiwan

Knowing one's HIV status is fundamental to the prevention and treatment of HIV and AIDS. However, HIV prevention is defeated if individuals who opt to be tested fail to return for their test result. Despite the burden of HIV and...

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AIDS fatigue and university students’ talk about HIV risk

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Tamara Shefer --- Women's and Gender Studies, South Africa Anna Strebel --- Women's and Gender Studies, South Africa Joachim Jacobs --- HIV/AIDS Programme, South Africa

Drawing on a qualitative study that included 20 focus group discussions with male and female students at an urban-based university in South Africa, this article reports on perceptions, attitudes and reported behaviour with respect to HIV and AIDS and safer...

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Older people living with HIV in Uganda: understanding their experience and needs

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: MonicaO Kuteesa --- , Australia Janet Seeley --- Uganda Research Unit on AIDS, Uganda RobertG Cumming --- , Australia Joel Negin --- , Australia

Older adults ageing with HIV in Africa have been largely neglected, despite the distinctive healthcare needs of this population. This article examines the medical care experiences of older Ugandans living with HIV. Data were collected from 40 HIV-positive adults, aged...

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Poor-quality health services and lack of programme support leads to low uptake of HIV testing in rural Mozambique

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: CarolynM Audet --- Department of Preventive Medicine, United States Kate Groh --- Department of Medicine, United States TroyD Moon --- Department of Pediatrics, United States StenH Vermund --- , United States Mohsin Sidat --- , Mozambique

Mozambique has one of the world's highest burdens of HIV infection. Despite the increase in HIV-testing services throughout the country, the uptake has been low. To identify barriers to HIV testing we conducted a study in six rural districts in...

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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 --- , Kenya

The 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...

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Nutritional care and support among adults living with HIV at Hawassa Referral Hospital, southern Ethiopia: A qualitative study

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Zelalem Tafese --- Hawassa College of Health Science, Ethiopia Yifru Birhan --- Hawassa University, College of Medicine and Health Sciences, Ethiopia Hiwot Abebe --- Hawassa University, School of Nutrition and Food Science, Ethiopia

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Myths or theories? Alternative beliefs about HIV and AIDS in South African working class communities

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: David Dickinson --- Department of Sociology, South Africa

Despite three decades of public health promotion based on the scientific explanation of HIV/AIDS, alternative explanations of the disease continue to circulate. While these are seen as counter-productive to health education efforts, what is rarely analysed is their plurality and...

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Acceptability of routine HIV counselling and testing among a sample of South African students: Testing the Health Belief Model

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jani Nöthling --- Department of Psychiatry, South Africa Ashraf Kagee --- Department of Psychology, South Africa

Routine HIV counseling and testing (RCT) is a necessary first step in accessing health care for persons who may test HIV-positive. Despite the availability of RCT in many South African settings, uptake has often been low. We sought to determine...

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HIV/AIDS, the erosion of social capital and the collapse of rural livelihoods in the Nkomazi district of South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Hannah Dawson --- University of Johannesburg, South Africa

HIV/AIDS is a major driver of livelihood insecurity. The AIDS epidemic, through the death or disability of economically productive adults, destabilises and erodes the social networks which sustain the livelihoods of vulnerable households. This paper draws upon research with home-based...

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HIV testing is associated with increased knowledge and reductions in sexual risk behaviours among men in Cape Town, South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lori AJ Scott-Sheldon --- Centers for Behavioral and Preventive Medicine, USA Michael P Carey --- Centers for Behavioral and Preventive Medicine, USA Kate B Carey --- Department of Behavioral and Social Sciences, School of Public Health, USA Demetria Cain --- Department of Psychology, USA Leickness C Simbayi --- Human Sciences Research Council, South Africa Vuyelwa Mehlomakhulu --- Human Sciences Research Council, South Africa Seth C Kalichman --- Department of Psychology, USA

HIV testing benefits those who test positive, allowing them to receive treatment, but the benefits for those who test negative remain controversial. We evaluated the impact of testing on HIV knowledge and sexual risk among men in South Africa. Men...

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Advice dilemmas: Managing advice against the competing public health and counselling imperatives that shape VCT in South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Heidi van Rooyen --- HIV/AIDS, Sexually Transmitted Infections and TB (HAST) Programme, South Africa

The public health and counselling imperatives that shape VCT create advice dilemmas for counsellors. Public health proponents view the dispensing of advice as important, whilst most contemporary counselling dictates that advice should not be given under any circumstances. Using a...

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Support groups for HIV-positive people in South Africa: Who joins, who does not, and why?

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Wenche Dageid --- Department of Psychology, Norway

Psychosocial health care for persons living with HIV/AIDS (PLWHA) is inadequate. Support groups for PLWHA could offer arenas where psychosocial issues are addressed, yet more knowledge is needed about those who join and those who do not join such groups...

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Is the absolute requirement for informed consent before HIV testing a barrier to public health? A case report and management challenges

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: David Ameh --- Medical Research Council Unit, The Gambia Uchendu O Uchendu --- Medical Research Council Unit, The Gambia Oyedeji A Adeyemi --- Medical Research Council Unit, The Gambia Readon C Ideh --- Medical Research Council Unit, The Gambia Bernard E Ebruke --- Medical Research Council Unit, The Gambia Grant Mackenzie --- Medical Research Council Unit, The Gambia Stephen Howie --- Medical Research Council Unit, The Gambia Tumani Corrah --- Medical Research Council Unit, The Gambia

Clinicians in sub-Saharan Africa are faced with a major challenge of parental refusal to test their children for HIV. We present a case of a nine-month-old child with a clinical presentation suggestive of HIV infection whose mother persistently declined HIV...

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Branchipodopsis species — specialists of ephemeral rock pools

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L Brendonck ML Hamer BJ Riddoch MT Seaman

The anostracan Branchipodopsis genus is widespread throughout southern Africa and is the second most speciose anostracan taxon in this sub-continent. Branchipodopsis species are particularly dominant in small short-lived and clear rock pools, to the vagaries of which they are extremely...

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Fish as a resource in a rural river catchment in the Northern Province, South Africa

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BCW van der Waal

The rural population in the Mutshindudi River valley, in the north-eastern corner of the Northern Province, accept locally-caught freshwater fish as food (85%), but tinned pilchards are the most commonly eaten fish. Fishing gear was recorded in 70% of the...

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Sublethal effects of manganese on the haematology and osmoregulation of Oreochromis mossambicus after acute exposure

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Barnhoorn JHJ van Vuuren

Oreochromis mossambicus were exposed for 96 hours to sublethal manganese concentrations in a continuous flow-through system. The sublethal concentrations were determined from the LC50 value of manganese (1.723mg/l), which included a 10% (172.3mg/l), 15% (259.8mg/l) and 20% (345.6mg/l) concentration of...

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The occurrence of the tapeworm Ligula intestinalis (L.), in Barbus paludinosus from a small dam in Zimbabwe

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Barson BE Marshall

Cestode parasites were collected from Barbus paludinosus from Munwahuku Dam near Harare, Zimbabwe over a period of 13 months. Plerocercoids of Ligula intestinalis were found in 7.2% of the fish. The majority of the infected fish carried one parasite, with...

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An assessment of the nkacha net fishery of Lake Malombe, Malawi

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OLF Weyl KR Mwakiyongo DS Mandere

Since the early 1990s the fishery of Lake Malombe, Malawi, has been dominated by haplochromine cichlids which are mainly harvested with a small-scale purse seine called an nkacha net. The annual landings from the fishery declined from 9 500 tons...

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Oualidia lagoon, Morocco: an estuary without a river

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: K Hilmi VG Koutitonsky A Orbi JI Lakhdar M Chagdali

This study describes some physical oceanography features of an estuary maintained by fresh groundwater inflow. The mesoscale variability of currents, temperature and salinity are documented from moored current meter observations of 12 days duration at three stations. Current speeds exceeded...

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Modelling highly variable daily maximum water temperatures in a perennial South African river system

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NicholasA Rivers-Moore CarelN Bezuidenhout GrahamPW Jewitt

Thirty-three months of observed hourly water temperatures were used to calculate daily maximum water temperatures for nine sites within the Sabie-Sand River system, Mpumalanga Province, South Africa. A suite of statistical models for simulating daily maximum water temperatures, of differing...

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Phylogenetic relationships between some African Characidae, Disticho-dontidae and Hepsetidae: results of allozyme and mtDNA data analyses

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FH van der Bank A Kotzé TM Falk

The present study considers phylogenetic relationships of some southern, eastern and western African Characidae, Distichodontidae and Hepsetidae species, for which only limited genetic data with respect to their classification and phylogeny are currently available. Thirteen species representing three families and...

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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 Bills

Fish 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...

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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 Impson

The 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...

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Joint action toxicity of spent lubrication oil and laundry detergent against Poecilia reticulata (Telostei: Poeciliidae)

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AdebayoA Otitoloju

Single and joint action bioassays using spent lubrication oil, laundry detergent and a mixture of both (based on a 1:1 ratio of their 96h LC50 values) against the guppy Poecilia reticulata were carried out. On the basis of 96h mortality...

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Cyanobacteria and cyanotoxins in the source water from Lake Chivero, Harare, Zimbabwe, and the presence of cyanotoxins in drinking water

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Lindah Mhlanga Jenny Day Gertrud Cronberg Moses Chimbari Nqobizitha Siziba Heléne Annadotter

The phytoplankton community and cyanotoxins in Lake Chivero (formerly Lake McIlwaine) and the presence of cyanotoxins in treated drinking water were investigated between 2003 and 2004. A typical seasonal succession of Cyanobacteria species occurred from January to April, Bacillariophyta from...

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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-Nielsen

The 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...

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The pollution status of Lake Nakuru, Kenya: heavy metals and pesticide residues, 1999/2000

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: WJ Mavura --- Department of Chemistry, Kenya PT Wangila --- Department of Chemistry, Kenya

This study was carried out from April 1999 to May 2000 to investigate the extent of pollution of Lake Nakuru. Water, sediment, fish and algae collected from the lake and its feeder rivers during the dry and rainy seasons were...

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Accumulation of hepatic Hsp70 and plasma cortisol in Oreochromis mossambicus following sublethal metal and DDT exposure

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SS Mlambo --- Centre for Aquatic Research, Zoology Department, South Africa JHJ van Vuren --- Centre for Aquatic Research, Zoology Department, South Africa R Basson --- Centre for Aquatic Research, Zoology Department, South Africa B Grant --- Centre for Aquatic Research, Zoology Department, South Africa

Heat shock response in Oreochromis mossambicus livers was measured, using antibodies specific to Hsp70 family members, by an immunoblotting protocol. The hepatic isoforms Hsp70, Hsp74 and Hsp76 were identified and quantified from copper exposures. Long-term DDT exposure did not result...

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Distribution of Nile perch Lates niloticus in southern Lake Victoria is determined by depth and dissolved oxygen concentrations

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PC Goudswaard --- , the Netherlands EFB Katunzi --- , Tanzania JH Wanink --- , the Netherlands F Witte --- , the Netherlands

Although Nile perch Lates niloticus is assumed to be sensitive to low oxygen concentrations, it was found in deep water in Lake Victoria, where oxygen depletion is common during the rainy season. Since factors determining Nile perch distribution are not...

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Spatial and temporal patterns of phytoplankton abundance and composition in three ecological zones in the Tanzanian waters of Lake Victoria

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GW Ngupula --- , Tanzania ASE Mbonde --- , Tanzania CN Ezekiel --- , Tanzania

Phytoplankton abundance and composition in relation to physico-chemical parameters were investigated from September 2005 to October 2007 at 51 stations of various depths in the nearshore, intermediate and deep offshore waters of Lake Victoria. Shallow nearshore waters had the highest...

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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, USA

A 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...

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Pesticides in South African fresh waters

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TM Ansara-Ross --- Centre for Aquatic Research, Department of Zoology, South Africa V Wepener --- Centre for Aquatic Research, Department of Zoology, South Africa PJ van den Brink --- Department of Aquatic Ecology and Water Quality Management, The Netherlands MJ Ross --- Centre for Aquatic Research, Department of Zoology, South Africa

Public concern has recently escalated over pesticide contamination of South African aquatic ecosystems. This review of published literature on the occurrence of pesticides within South African freshwater systems indicates that fewer than 50 studies of selected pesticides have been undertaken,...

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Evaluation of acoustic transmitter implantation and determination of post-translocation behaviour of largemouth bass Micropterus salmoides in a South African impoundment

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CF Huchzermeyer --- Department of Ichthyology and Fisheries Science (DIFS), South Africa OLF Weyl --- , South Africa PD Cowley --- , South Africa

Largemouth bass Micropterus salmoides are an important angling species that are often displaced during catch-and-release fishing tournaments. The impact of acoustic transmitter implantation on this species and the effect of displacement distance on their behaviour were tested. In April 2010,...

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Response of mangroves to drought and non-tidal conditions in St Lucia Estuary, South Africa

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SCL Hoppe-Speer --- Botany Department, South Africa JB Adams --- Botany Department, South Africa A Rajkaran --- Botany Department, South Africa

The effect of a prolonged closed-mouth state on the condition of mangrove habitats was studied in May 2010 at St Lucia Estuary, KwaZulu-Natal. The mouth had been closed to the sea since 2002 as a result of artificial mouth closure...

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Toxicity of the chlorpyrifos-based pesticide Termifos^®: effects on behaviour and biochemical and haematological parameters of African catfish Clarias gariepinus

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CD Nwani --- Department of Zoology and Environmental Biology, Nigeria DO Ugwu --- Department of Zoology and Environmental Biology, Nigeria OC Okeke --- Department of Zoology and Environmental Biology, Nigeria GC Onyishi --- Department of Zoology and Environmental Biology, Nigeria FN Ekeh --- Department of Zoology and Environmental Biology, Nigeria C Atama --- Department of Zoology and Environmental Biology, Nigeria LO Eneje --- Department of Applied Microbiology and Brewing, Nigeria

The present study, conducted in 2012, determined the toxicity of the chlorpyrifos-based pesticide Termifos® and its effects on behaviour and biochemical and haematological parameters in juvenile African catfish Clarias gariepinus. The 96 h LC50, estimated by probit analysis in a...

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Dynamics of a cyanobacterial bloom in a hypereutrophic reservoir, Lake Chivero, Zimbabwe

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L Mhlanga --- Department of Biological Sciences, Zimbabwe W Mhlanga --- Department of Environmental Science, Zimbabwe

Blooming and non-blooming periods between 2004 and 2006 in a hypereutrophic reservoir, where cyanobacterial blooms have previously been reported to be permanent, presented an opportunity to characterise factors that may favour cyanobacterial dominance. As a bloom developed in May 2004,...

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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 Africa

Counting 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...

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Population estimates of three vulture species in Kruger National Park, South Africa

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Campbell Murn --- , UK Leigh Combrink --- , South Africa G Scott Ronaldson --- , South Africa Charles Thompson --- , South Africa André Botha --- , South Africa

Vultures are globally threatened, yet reliable population data on these birds are few, thus measuring their response to change is difficult. Kruger National Park (KNP) in South Africa is an important stronghold for many avian species, particularly vultures. In this...

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Nest characteristics of Yellow-billed Kites Milvus aegyptius in the Manambolomaty Lakes Complex, western Madagascar

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tolojanahary Andriamalala --- , Madagascar Lily-Arison Rene de Roland --- , Madagascar Marius Rakotondratsima --- , Madagascar Gilbert Razafimanjato --- , Madagascar Russell Thorstrom --- , USA

We studied the nesting biology of Yellow-billed Kites Milvus aegyptius in the Manambolomaty Lakes Complex of western Madagascar during 2002 and 2003. We recorded 64 nesting attempts. In 2003, 33% (n = 39 nests) of the occupied nests were from...

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The sociality of nesting in Rüppell's Weaver Ploceus galbula and the Lesser Masked Weaver Ploceus intermedius in an Ethiopian acacia woodland

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: David C Lahti --- Department of Biology, Queens College, USA

Rüppell's Weaver Ploceus galbula and the Lesser Masked Weaver Ploceus intermedius nest prominently in the Awash National Park, Ethiopia. In both species the sociality or degree of aggregation of their nesting is varied. Rüppell's Weaver can nest singly or in...

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Variations in bird communities of the Saharan mountains

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Michel Clouet --- Association Régionale Ornithologique du Midi et des Pyrénées (AROMP), Muséum Histoire Naturelle, France Jean Joachim --- Institut National de la Recherche Agronomique (INRA), Comportement et Ecologie de la Faune Sauvage, Chemin de Borde Rouge, France

Characteristics and variations of the bird communities in the Saharan mountains were evaluated in five massifs from West to East: the Adrar of Mauritania, the Ahaggar in Algeria, the Adrar of the Iforas in north-eastern Mali, the Aïr Mountains in...

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Volume Regression Equations for Eucalyptus Grandis on the Coastal Plain of Zululand

Item type: Journal Article • Journal: South African Forestry Journal • Authors: B.V. Bredenkamp --- Natal Forestry Research Centre,

Separate volume regression equations for pulpwood, sawtimber and over-mature Eucalyptus grandis are presented. An investigation of Schumacher and Hall's volume equation indicated that a better fit may be obtained by adding a constant to the dbh as predictor variable. The...

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Productivity Studies of a Large Scale Semi-mechanised Harvesting System for Shortwood in Hilly Terrain

Item type: Journal Article • Journal: South African Forestry Journal • Authors: R.M. de Laborde --- ,

Large scale extraction of shortwood E. grandis timber by means of a semi-mechanised system in hilly terrain gives high productivity from clearfellings. The system employs wheeled tractors and manually loaded low-bed trailers for infield shortwood harvesting. Loads of five to...

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Harvesting of Pine and Eucalypt in South Africa

Item type: Journal Article • Journal: South African Forestry Journal • Authors: Walter Warkotsch --- Faculty of Forestry,

South Africa's geography, the forest resources and typical management practices are discussed. Most recent supply and demand prognosis data are cited to demonstrate the rapid growth rates and to indicate the growing importance of well designed and balanced harvesting operations.

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Could phosphorus concentrations increase with the development of cage culture in Lake Kariba, Zimbabwe?

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L Mhlanga --- Department of Biological Sciences, Zimbabwe W Mhlanga --- Department of Environmental Science, Zimbabwe P Mwera --- Lake Harvest, Zimbabwe P Tendaupenyu --- Department of Biological Sciences, Zimbabwe

A comparison between historical and current data was done to determine whether the concentrations of total phosphorus, orthophosphate and chlorophyll a, and Secchi disc transparency, have changed in the Sanyati Basin of Lake Kariba following the commencement of cage culture...

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COUNTING NATURAL POPULATIONS OF MICROCYSTIS AERUGINOSA: A SIMPLE METHOD FOR COLONY DISRUPTION INTO SINGLE CELLS AND ITS EFFECT ON CELL COUNTS OF OTHER SPECIES

Item type: Journal Article • Journal: Southern African Journal of Child and Adolescent Mental Health • Authors: Tamar Zohary --- , ArcangelaM. Pais Madeira --- ,

A rapid, high-speed blending method for disrupting colonies of the cyanobacterium Microcystis aeruginosa to single cells in preparation for cell counts is described. Cell counts obtained for treated samples of natural populations of M. aeruginosa from Hartbeespoort Dam did not...

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MODELS OF ECOSYSTEMS AND AQUATIC ENVIRONMENTS: DEVELOPMENT AND APPLICATION

Item type: Journal Article • Journal: Southern African Journal of Child and Adolescent Mental Health • Authors: B.R. Allanson --- , South Africa

An historical treatment of a number of principal events is given. This leads to an assessment of the current research approach in hydrobiology and its success in the development of process orientated ecosystem component models. With the contemporaneous development of...

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APPLICATION OF LAVSOE, AN EUTROPHICATION MODEL, TO BLOEMHOF DAM

Item type: Journal Article • Journal: Southern African Journal of Child and Adolescent Mental Health • Authors: J.N. Rossouw --- ,

In 1985 the Department of Water Affairs introduced an effluent phosphate standard of 1 mg l−1 (as P) in seven potentially sensitive catchments. Although this is an uniform standard, permits can be granted for effluents to exceed the standard in...

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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. Kanandjembo

The 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...

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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. Attwood

The 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)...

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Under-reporting of Catches of South Coast Rock Lobster Palinurus Gilchristi, with Implications for the Assessment and Management of the Fishery

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J. C. Groeneveld

Under-reporting of fishery catches can severely affect the precision of stock assessment estimates, which require accurate information on catch and catch rate. Under-reporting of catches of South Coast rock lobster Palinurus gilchristi over the past decade was estimated from verified...

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The Distribution and Spread of Alien Vascular Plants on Prince Edward Island

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P. G. Ryan V. R. Smith N. J. M. Gremmen

Surveys of alien plants at subantarctic Prince Edward Island in 2001 show that the ranges of all three introduced species have increased since the last survey in 1998. Poa annua, the longest-established species, increased its range substantially after 1987, prior...

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A brief introduction to some approaches to multispecies/ecosystem modelling in the context of their possible application in the management of South African fisheries

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D. S. Butterworth É. E. Plagányi

Aspects of the potential application of multispecies/ecosystem modelling to advise the management of South African fisheries are discussed. In general, reliable predictive ability from such models is likely to be achieved sooner for top predators, because relatively fewer links need...

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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. Griffiths

Within 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,...

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Is there a single stock of Merluccius paradoxus in the Benguela ecosystem?

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Burmeister

The deep-water Cape hake, Merluccius paradoxus, is one of two hake species found off South Africa and Namibia. In the past it was assumed that there were separate stocks of M. paradoxus off Namibia, and off the west and south...

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Alternate explanations of the dispersal pattern of galjoen Dichistius capensis

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CG Attwood PD Cowley

The 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...

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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'Dor

To 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...

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The potential for using acoustic tracking to monitor the movement of the West Coast rock lobster Jasus lalandii

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LJ Atkinson S Mayfield AC Cockcroft

Although acoustic tracking has been used to study the movement of several species of clawed and spiny lobsters, only recent technological advances have provided sufficiently small transmitters to examine the utility of using acoustic tracking as a means to analyse...

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Vertical migration, catchability and acoustic assessment of semi-pelagic Cape horse mackerel Trachurus trachurus capensis in the southern Benguela

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Barange SC Pillar I Huse L Hutchings

The vertical distribution and migration of the Cape horse mackerel Trachurus trachurus capensis were investigated on the basis of midwater and bottom trawl collections taken over diel cycles at two sites on South Africa's south coast. Attempts were also made...

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Toxic cyanobacteria in the lakes located in Rīga (the capital of Latvia) and its surroundings: present state of knowledge

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Balode I Purina S Strake S Purvina M Pfeifere I Barda K Povidisa

The intensity and toxicity of cyanobacterial blooms in lakes located near Rīga (the capital of Latvia) were investigated between 1998 and 2004. These lakes are shallow eutrophic water bodies with a high surface to depth ratio and are widely used...

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Cyanobacteria species identified in the Weija and Kpong reservoirs, Ghana, and their implications for drinking water quality with respect to microcystin

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Addico J Hardege J Komarek P Babica KAA de Graft-Johnson

The Kpong and Weija reservoirs supply drinking water to Accra, Ghana. This study was conducted to identify the cyanobacteria present in these reservoirs and to ascertain whether current treatment processes remove whole cyanobacteria cells from the drinking water produced. Cyanotoxins...

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Identification of acoustic targets off Angola using General Discriminant Analysis

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: F Vaz Velho BE Axelsen P Barros G Bauleth-D'Almeida

Pelagic fish off Angola constitute about 80% of the total fish landed and some 75% of the animal protein in the diet of the coastal population. The primary means of estimating stock abundance is through acoustic surveys, a method that...

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The life history of the giant octopus Octopus magnificus in South African waters

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CD Smith JC Groeneveld G Maharaj

Octopus magnificus is a regular bycatch of traps set for spiny lobsters and bottom trawls for Cape hakes Merluccius spp. on the continental shelf of South Africa. Octopuses were collected from rocky substrata (traps) and soft sediments (research trawls) during...

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Euphausiid population structure and grazing in the Antarctic Polar Frontal Zone — austral autumn 2004

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ATF Bernard PW Froneman

The euphausiid community structure and grazing dynamics were investigated in the West Indian sector of the Polar Frontal Zone during the austral autumn 2004. Subsurface (200m) temperature profiles indicated that an intense frontal feature, formed by the convergence of the...

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Exploring basic biochemical constituents in the body tissues of South African abalone Haliotis midae reared in shore-based mariculture systems

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Laas --- Medical Research Council of South Africa, South Africa A Vosloo --- School of Environmental Science and Development, South Africa

The study quantifies the effects of season, age and feeding regime on glucose, glycogen, proteins and lipids in abalone Haliotis midae tissues, and to assess water loss during simulated live export. Abalone of two age classes, younger (∼30 months old)...

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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 Africa

In 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...

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Biological characteristics of sardine caught by the beach-seine fishery during the KwaZulu-Natal sardine run

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CD van der Lingen --- Branch Fisheries, Department of Agriculture, South Africa M Hendricks --- Branch Fisheries, Department of Agriculture, South Africa MD Durholtz --- Branch Fisheries, Department of Agriculture, South Africa G Wessels --- Marine Research Institute and Zoology Department, South Africa C Mtengwane --- Branch Fisheries, Department of Agriculture, South Africa

Catches of sardine Sardinops sagax made by the beach-seine fishery off the KwaZulu-Natal (KZN) coast during the annual winter sardine run have been sampled intermittently since 1951, and a substantial amount of data on various biological characteristics of sardine caught...

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The 2005 KwaZulu-Natal sardine run survey sheds new light on the ecology of small pelagic fish off the east coast of South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JC Coetzee --- Branch Fisheries, Department of Agriculture, South Africa D Merkle --- Branch Fisheries, Department of Agriculture, South Africa L Hutchings --- Oceans and Coasts, Department of Environmental Affairs, South Africa CD van der Lingen --- Branch Fisheries, Department of Agriculture, South Africa M van den Berg --- Oceans and Coasts, Department of Environmental Affairs, South Africa MD Durholtz --- Branch Fisheries, Department of Agriculture, South Africa

Despite much public awareness surrounding the annual migration of sardine Sardinops sagax northward along the east coast of South Africa in winter each year, relatively little research effort has been expended to improve understanding of the ‘sardine run’. For this...

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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 --- , UK

Humpback 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...

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Movement patterns of coastal bottlenose dolphins in the presence of a fast-flowing, prevailing current: shore-based observations at Cape Vidal, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Photopoulou --- Sea Mammal Research Unit, UK PB Best --- , South Africa PS Hammond --- Sea Mammal Research Unit, UK KP Findlay --- Department of Oceanography, University of Cape Town, South Africa

The presence and movement of Indo-Pacific bottlenose dolphins Tursiops aduncus were investigated using shore-based observations made during a humpback whale Megaptera novaeangliae migration survey at Cape Vidal, South Africa, undertaken between June and October 1988–1991. Occurrence was analysed as counts...

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Acoustic behaviour of southern right whales in relation to numbers of whales present in Walker Bay, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LH Hofmeyr-Juritz --- , South Africa PB Best

Estimating numbers of whales present in an area from recorded call rates could be a useful conservation tool. We recorded southern right whale Eubalaena australis vocalisations and presence in Walker Bay on the south coast of South Africa. In all,...

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An assessment of participation, catch and effort in the KwaZulu-Natal shore-based marine linefishery, with comments on management effectiveness

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SW Dunlop --- , South Africa BQ Mann --- , South Africa

The primary purpose of this study was to evaluate the effectiveness of current management of the KwaZulu-Natal (KZN) shore-based marine linefishery. Methods used included a stratified-random creel survey and an associated questionnaire survey. The study was undertaken between February 2009...

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Quantifying the degree of protection afforded by a no-take marine reserve on an exploited shark

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C da Silva --- Fisheries Research, Department of Agriculture, South Africa SE Kerwath --- Fisheries Research, Department of Agriculture, South Africa CG Attwood --- Marine Research Institute, Zoology Department, South Africa EB Thorstad --- , Norway PD Cowley --- , South Africa F Økland --- , Norway CG Wilke --- Fisheries Research, Department of Agriculture, South Africa TF Næsje --- , Norway

Sharks have been shown to benefit from the protection of marine protected areas (MPAs). There is, however, little information on the degree of protection by MPAs to shark populations. The movements of individual smoothhound sharks Mustelus mustelus in, and adjacent...

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Age, growth and reproductive biology of the blue shark Prionace glauca in South African waters

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: KA Jolly --- Zoology Department, South Africa C da Silva --- Fisheries Research, Department of Agriculture, South Africa CG Attwood --- Zoology Department, South Africa

The age, growth and reproductive biology of the blue shark Prionace glauca from South African waters were assessed using 205 specimens, ranging in total length (TL) from 72 to 313 cm. Greater number of males (120) than females (85) were...

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Trade Preferences, Economies of Scale and Dynamic Productivity Upgrading in African Manufacturing Firms: The Production Technology–Institutional Context Nexus

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abdelrasaq Nal --- , South Africa

Economic justification for the idea that a trade preference incentive can, through its enhanced market facility, bring about dynamic productivity gains to beneficiary firms is rooted in the logic of economies of scale. Under the assumption that this scale driven...

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Emigrant's Transfers in Senegal: The Role of ICT

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Latif Dramani --- ,

In 2011, remittances from Senegalese migrants constituted 86%1 of the funds required for the daily survival of recipient households. In this paper, we try to analyse the role of ICT in Senegalese emigrant's transfers through its impact on the household's...

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Inclusive Growth and Institutions: An Analysis of the Employment Structure of India's Tea Plantation Sector

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Namrata Thapa [d858062e18]

It is generally held that though the Indian economy has been experiencing high growth in the post-reform period, it is not inclusive and that certain sectors, regions and population of the country are being excluded from the benefits of growth...

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Community forestry resources: A case study of selected woodlots in the Eastern Cape Province

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Cori Ham --- Faculty of Agriculture and Forestry Sciences, Francois Theron --- School of Public Management and Planning,

Community surveys were conducted through the use of participatory community meetings and a questionnaire in the Butterworth area of the Eastern Cape. The objectives of these surveys were to determine the needs and perceptions of communities regarding woodlots and woodutilisation...

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A framework for analyzing workforce dynamics in forest harvesting in South Africa

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Killian Tendai Manyuchi --- Forest Engineering: Department of Forestry Sciences, South Africa ReinoE. Pulkki --- Forest Engineering: Department of Forestry Sciences, South Africa R.P.F --- Faculty of Forestry and the Forest Environment, Canada

People are the industry's most valuable asset. However, due to its dynamic nature, labour cannot be owned but only rented. A framework for measuring, monitoring and managing labour dynamics is used and tested in forest harvesting operations in South Africa...

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Knowledge on Sclerocarya birrea subsp. caffra with emphasis on its importance as a non-timber forest product in South and southern Africa: A Summary

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Rachel Wynberg --- Graduate School of Environmental Studies, South Africa Jill Cribbins --- , South Africa Roger Leakey --- Agroforestry and Novel Crops Unit, School of Tropical Biology, Australia Cyril Lombard --- CRIAA SA-DC, Namibia Myles Mander --- , South Africa Sheona Shackleton --- Environmental Science Programme, South Africa Caroline Sullivan --- Centre for Ecology and Hydrology, Crownmarsh Gifford, England

Sclerocarya birrea (marula) forms an integral part of the diet, tradition and culture of rural communities in southern Africa and also is central to various commercial initiatives. This second part of a review on the species provides an overview of...

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The relationship between torsional rigidity and bending strength characteristics of SA pine

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: W. M. G. Burdzik [d849458e21] P. D. Nkwera --- Department of Civil Engineering,

The modulus of rigidity, G, and bending moment ofelasticity, MOE, of SA pine are evaluated from a direct torsion test and bending tests. Specimens were subjected to a series of tests with the view to determining direct torsional rigidity, apparent...

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Socio-economic impact of ox skidding project to the surrounding villages of Mount Meru forest plantations, Northern Tanzania

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: W.S. Abeli --- Faculty of Forestry and Nature Conservation, Tanzania J.R. Maximillian --- Faculty of Forestry and Nature Conservation, Tanzania A.E. Kweka --- Faculty of Forestry and Nature Conservation, Tanzania D.T.K. Shemwetta --- Faculty of Forestry and Nature Conservation, Tanzania

The ox skidding project was initiated with the objective ofusing oxen for transporting logs from the stump sites to the landings. It was supposed to be a participatory research project aimed at integrating scientific knowledge with practical skills and resource...

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Effects of site management operations on the nutrient capital of a eucalypt plantation system in South Africa

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Ben du Toit --- , South Africa

The Karklo of Project is a case study ofthe effects ofintensive site management operations during the interrotational period, on (a) the nutrient capital of the system, and (b) the availability of growth resources (nutrients and water) in a commercial Eucalyptus...

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Does soil compaction on harvesting extraction roads affect long-term productivity of Eucalyptus plantations in Zululand, South Africa?

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Colin W. Smith --- ,

The effect ofsoil compaction on the growth of Eucalyptusgrandis and two clonal hybrids (Eucalyptus grandis x urophylla (E. gxu) and Eucalyptus grandis x camaldulensis (E. gxc)) was evaluated on harvesting extraction roads at three sites in the Zululand region ofKwaZulu-Natal...

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Survival and growth of Pinus patula at two years in response to harvest residue and pest management, in Mpumalanga, South Africa

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Carol Rolando --- , Ross Allan --- ,

Previous research has indicated that the presence of harvesting residues, post-planting tern perature and rainfall, and insect pests and diseases, are among the main causes of mortality during re-establishment of Pinus patula stands. The main objectives of this work were...

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Effects of temperature on Pinus patula seedlings growing in pots in a controlled environment

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Colleen A. Carlson --- Horticultural Science Department, South Africa Ross Allan --- Shaw Research Centre, South Africa Andrew R. Morris --- Shaw Research Centre, South Africa

The re-establishment of Pinus patula seedlings into sites with high harvesting residue (slash) loads can negatively affect the survival of these plants. Field trials have examined the role that insect pests and fungal diseases play in causing this phenomenon. Research...

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Grade verification of SA pine — bending, modulus of rupture, modulus of elasticity, tension and compression

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Walter Burdzik --- , Africa

The last verification of SA pine timber strengths was done in the early 1980s. Uses of the pine logs and the rotation periods have changed. This investigation was undertaken to verify the visual grade 5 grading rules of SANS 1783-2...

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Harvesting, processing and utilisation of rattan canes in Western Nigeria

Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: E. Babajide Lucas --- Department of Agricultural Engineering, Nigeria Bamidele I.O. Dahunsi --- Department of Civil Engineering, Nigeria

Field trips were undertaken as a preliminary exercise, to identify the available rattan species in Western Nigeria and to estimate the quantities available. Information relating to their end-uses was collected from cane furniture makers and other rattan cane users through...

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Oil yield and quality variation between sexes in Osyris lanceolata (African sandalwood) and its value as a fodder plant in Tanzania

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: PL Mwang’ingo --- Faculty of Science, Tanzania G Kibodya --- Faculty of Science, Tanzania AR Mng’ong’o --- , Tanzania

African sandalwood (Osyris lanceolata) is widely harvested in East Africa for extraction of oil, which is used in the fragrance and perfumery industry. Over the years, harvesting of the species has been concentrated to female plants because it is claimed...

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Corewood in South African pine: necessity and opportunities for improvement

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: FS Malan --- , South Africa

South Africa has made excellent progress in breeding plantation trees fulfilling the primary demands of improved volume growth, stem and branching characteristics, tolerance to pests and diseases, and general adaptability. This has had marked positive impacts on wood quality, as...

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Tree species composition, structure and utilisation in Maruzi Hills Forest Reserve in Uganda

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: I Kiyingi --- , Uganda JM Kidiya --- , Uganda S Gwali --- , Uganda P Okullo --- , Uganda DM Byabashaija --- , Uganda

The study investigated the tree species composition, vegetation structure and harvesting pattern to guide management of the Maruzi Hills Forest Reserve. Stratified random sampling was used to site six (100 m × 100 m) permanent sample plots in the woodland,...

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Cant sawing log positioning in a sawmill: searching for an optimal solution

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: CB Wessels --- Department of Forest and Wood Science, South Africa J de V du Plessis --- Department of Forest and Wood Science, South Africa NH Smit --- Department of Forest and Wood Science, South Africa

Automated three-dimensional log scanning and positioning systems in a sawmill have a limited time available to reach an optimal positioning solution before primary breakdown sawing starts. In this study a search algorithm (tentacle algorithm) was developed for this task and...

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Pruning quality affects infection of Acacia mangium and A. crassicarpa by Ceratocystis acaciivora and Lasiodiplodia theobromae

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: M Tarigan --- Department of Microbiology and Plant Pathology, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South Africa MJ Wingfield --- Department of Microbiology and Plant Pathology, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South Africa M van Wyk --- Department of Genetics, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South Africa B Tjahjono --- , Indonesia J Roux --- Department of Microbiology and Plant Pathology, Tree Protection Co-operative Programme, Forestry and Agricultural Biotechnology Institute, South Africa

Pruning (singling) is a common silvicultural practice in commercial Acacia plantations because these trees tend to have multiple stems. The wounds resulting from pruning are susceptible to infection by pathogens. Ceratocystis acaciivora and Lasiodiplodia theobromae have been shown recently to...

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The flexural properties of young Pinus elliottii x Pinus caribaea var. hondurensis timber from the Southern Cape and their prediction from acoustic measurements

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: CB Wessels --- Department of Forest and Wood Science, South Africa GP Dowse --- Department of Forest and Wood Science, South Africa HC Smit --- Department of Forest and Wood Science, South Africa

The objectives of this study were to determine the bending strength and stiffness properties of young Pinus elliottii x P. caribaea var. hondurensis timber from the Southern Cape, South Africa, and to evaluate the predictability of these properties from acoustic...

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Fibre volume losses of eight softwood clearfell harvesting systems in South Africa

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: P Ackerman --- Department of Forest and Wood Science, South Africa R Pulkki --- Department of Forest and Wood Science, South Africa

A study of both fibre volume loss and related opportunity cost was performed across the South African softwood sawtimber industry to gain information on the actual utilisation of useful fibre and potential loss or gain of opportunity in terms of...

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Response of Ocotea bullata, Curtisia dentata and Rapanea melanophloeos to medicinal bark stripping in the southern Cape, South Africa: implications for sustainable use

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: WJ Vermeulen --- Conservation Services, South Africa CJ Geldenhuys --- Department of Forest and Wood Science, South Africa KJ Esler --- Department of Conservation Ecology, South Africa

Tree bark is commonly used for traditional medicine in southern Africa and further afield. Increasing demand and commercialisation have resulted in the overexploitation of many species, posing a major challenge to forest managers to develop mechanisms for sustainable resource use...

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Machine productivity and residual harvesting residues associated with a cut-to-length harvest system in southern Tasmania

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: MR Ghaffariyan --- , Australia J Sessions --- Department of Forest Engineering, Resources and Management, USA M Brown --- Office of PVC Research, Australia

The cut-to-length method is a preferred method for harvest of pine plantations in Australia. The cut-to-length method studied in southern Tasmania consists of a feller-buncher, processor, forwarder, grapple loader and tractortrailers that were producing only pulp logs for the plantation...

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Coarse root–shoot allometry of Pinus radiata modified by site conditions in the Western Cape province of South Africa

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: H Pretzsch --- Chair for Forest Growth and Yield, Germany P Biber --- Chair for Forest Growth and Yield, Germany E Uhl --- Chair for Forest Growth and Yield, Germany P Hense --- Chair for Forest Growth and Yield, Germany

The relationship between root and shoot growth and how it is modified by chronic or episodic drought stress is so far not well understood. Allometric partitioning theory (APT) supposes a constant root–shoot allometry. Optimal partitioning theory (OPT) assumes that plants’...

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Effects of irregular stand structure on tree growth, crown extension and branchiness of plantation-grown Pinus patula

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Simon A Ackerman --- Department of Forest and Wood Science, South Africa Pierre A Ackerman --- Department of Forest and Wood Science, South Africa Thomas Seifert --- Department of Forest and Wood Science, South Africa

The practice of combining row and selective thinning in commercial pine plantation silviculture carries the risk of unwanted irregularities in tree distribution, a situation that is aggravated when tree selection during marking is poor. The potential consequences of poor tree...

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Water relations of Eucalyptus nitens × Eucalyptus grandis: is there interclonal variation in response to experimentally imposed water stress?

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: ME Oscar Mokotedi --- CSIR Natural Resources and the Environment, South Africa

This study tested the hypothesis that water stress increases the hydraulic efficiency of Eucalyptus nitens × E. grandis saplings as a result of osmotic and elastic adjustments. Eucalyptus nitens × E. grandis clones (NH00, NH58, NH69 and NH70) were potted...

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Variation in strength, stiffness and related wood properties in young South African-grown Pinus patula

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: C Brand Wessels --- Department of Forest and Wood Science, South Africa Francois S Malan --- Komatiland Forests, South Africa Daan G Nel --- Centre for Statistical Consultation, South Africa Tim Rypstra --- Department of Forest and Wood Science, South Africa

The objective of this study was to examine the variation in and intercorrelation among wood properties determining the suitability of 16- to 20-year-old South African-grown Pinus patula trees for structural timber. A total of 1 112 sawn boards from 340...

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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 Garenne

This 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...

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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 Adeleke

Mother-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...

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Health-related quality of life in a sample of HIV-infected South Africans

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Karl Peltzer Nancy Phaswana-Mafuya

The study aims to assess the health-related quality of life and HIV symptoms of a sample of people living with HIV (PLHIV) in South Africa. The sample included 607 PLHIV from all districts of the Eastern Cape Province, recruited either...

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Habitual physical activity levels are positively correlated with CD4 counts in an HIV-positive South African population

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kirsten Kinsey Joanne McVeigh Ingrid Chantler

In order to assess the relationship between CD4 cell count, habitual physical activity levels and functional independence in a South African adult population positive for HIV, we administered a questionnaire concerning lifestyle and physical activity. Data collection took place at...

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Sex work, reform initiatives and HIV/AIDS in inner-city Johannesburg

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Marlise Richter

The on-going criminalisation of sex work in South Africa, concurrent sexual partnerships, socio-economic vulnerability, migrant status and gender-based violence intensify sex workers' risk of contracting HIV. These factors combine to restrict the skills, ability and resources of sex workers to...

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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 Karim

The 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...

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Sexual activity and condom use among people living with HIV in Swaziland

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: AgostinoM Zamberia

A number of studies have shown strong evidence of the association between HIV testing and an increase in consistent condom use. These studies have shown that HIV testing has contributed to a reduction in risk behaviours, since knowledge of HIV...

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Gender differences in intention to remain a virgin until marriage among school pupils in rural northern Tanzania

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Bernard Njau --- Community Health Department, Tanzania Sabina Mtweve --- Community Health Department, Tanzania Rachel Manongi --- Community Health Department, Tanzania Hector Jalipa --- , Mozambique

Abstinence is often promoted in HIV-prevention programmes for adolescents, but little is known about the factors that influence adolescents' intentions to abstain from sex until marriage. This study was conducted in ten districts in the Kilimanjaro, Arusha, and Manyara regions...

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How does AIDS illness affect women's residential decisions? Findings from an ethnographic study in a Cape Town township

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rachel Bray --- Centre for Social Science Research and Department of Social Anthropology, South Africa

This paper explores the nature and consequences of residential decision-making for women on treatment for AIDS illness in a poor urban settlement in South Africa. Drawing on ethnographic data collected over a two-year period, it points to the subtle shifts...

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A model for understanding the relationship between stigma and healthcare-seeking behaviour among people living with HIV/AIDS in sub-Saharan Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: NgoziC Mbonu --- Department of Health Promotion, The School for Public Health and Primary Care (CAPHRI), Faculty of Health, Medicine and Life Sciences, The Netherlands Bart Van den Borne --- Department of Health Promotion, The School for Public Health and Primary Care (CAPHRI), Faculty of Health, Medicine and Life Sciences, The Netherlands NanneK De Vries --- Department of Health Promotion, The School for Public Health and Primary Care (CAPHRI), Faculty of Health, Medicine and Life Sciences, The Netherlands

People living with HIV or AIDS (PLHIV) in sub-Saharan Africa sometimes have care-seeking behaviours that result in a suboptimal quality of life. This paper seeks to examine the role of stigma in the care-seeking behaviour of PLHIV. We hypothesise that...

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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 Netherlands

This 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...

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Religious participation and HIV-disclosure rationales among people living with HIV/AIDS in rural Swaziland

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Robin Root --- Department of Sociology and Anthropology, Baruch College, United States

Despite the cultural salience of Christianity in many parts of Africa and the expansion of antiretroviral treatment, few studies have examined experiences of religious participation among HIV-positive individuals. Correspondingly, most studies of HIV self-disclosure in sub-Saharan Africa focus primarily on...

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Mangrove litter production and organic carbon pools in the Mngazana Estuary, South Africa

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Anusha Rajkaran JanineB Adams

Wood harvesting is reducing the density of adult mangrove trees in the Mngazana Estuary. This is expected to decrease the amount of litter produced as well as the availability of organic carbon to the estuary and the nearshore environment. Pools...

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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 Skelton

The 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...

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Technical efficiency of small-scale fishing households in Tanzanian coastal villages: an empirical analysis

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JenniferK Sesabo RichardSJ Tol

The effort to conserve fisheries resources and improve the welfare of small-scale fishing households is an important objective of poverty reduction strategies in Tanzania. The success of such strategies depends on both the diversity and the level of efficiency within...

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Algal communities associated with aquatic macrophytes in some artificial ponds in Nyando District, Kenya

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Balthazar Mpawenayo Christine Cocquyt

This study describes the algal communities of six ponds colonised by aquatic macrophytes in Nyanza Province, Kenya. Plankton samples were collected from the water column and epiphytic samples from macrophytes such as Azolla, Pistia, Nymphaea, Ipomoea and Ludwigia. Pond pH,...

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Juncus kraussii harvesting in Umlalazi Nature Reserve, KwaZulu-Natal, South Africa: socio-economic aspects and sustainability

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CatherineH Traynor

Harvesting of the rush Juncus kraussii Hochst. for use as a fibre source in craftwork production was investigated within Umlalazi Nature Reserve in KwaZulu-Natal Province, South Africa. The main objectives of the study were as follows: to determine the distribution...

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Does Serranochromis altus (Teleostei: Cichlidae) exist in the Okavango Delta, Botswana?

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FH van der Bank M Wink M Soekoe N Smit

Two possibly synonymous fish species in the Okavango Delta, Botswana, Serranochromis altus and S. angusticeps, were compared. Ecological data, morphometrics, meristics, allozymes, and genomic fingerprints — generated with six Inter-Simple Sequence Repeat (ISSR) analyses, and DNA barcoding primers — were...

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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 Skelton

The 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...

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The role of ornamental goldfish Carassius auratus in transfer of some viruses and ectoparasites to cultured fish in Egypt: comparative ultra-pathological studies

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MA Mahmoud --- Department of Pathology, Faculty of Veterinary Medicine, Egypt SM Aly --- , Egypt AS Diab --- , Egypt G. John --- Department of Biotechnology, India

Goldfish, common carp and Nile tilapia were sampled between September 2002 and May 2003 to investigate lesions induced by viral diseases and ectoparasites. Goldfish exhibited neoplasms, Dermocystidium sp., Ichthyophthirius multifiliis (Ich), Trichodina reticulata, Lernaea cyprinacea and systemic infections. Neoplastic and...

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The impact of feedlot effluent on water quality and aquatic macroinvertebrate community structure in streams of the upper Vaal River catchment, South Africa

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M-N Jonker --- Centre for Aquatic Research, Department of Zoology, South Africa JHJ van Vuren --- Centre for Aquatic Research, Department of Zoology, South Africa V Wepener --- Centre for Aquatic Research, Department of Zoology, South Africa

The impact of three intensive feedlots on aquatic macroinvertebrate community structure under high and low flows in the upper Vaal catchment was investigated. Water quality variables recorded upstream and downstream of feedlot activity include pH, dissolved oxygen, conductivity, temperature, turbidity,...

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A histology-based fish health assessment of four commercially and ecologically important species from the Okavango Delta panhandle, Botswana

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JC van Dyk --- Centre for Aquatic Research, Department of Zoology, South Africa MJ Marchand --- Centre for Aquatic Research, Department of Zoology, South Africa NJ Smit --- Centre for Aquatic Research, Department of Zoology, South Africa GM Pieterse --- Centre for Aquatic Research, Department of Zoology, South Africa

The health status of four commercially and ecologically important fish species from the Okavango Delta was assessed, using a histology-based health assessment protocol, to establish baseline data for future toxicity studies. Following the calculation of a necropsy-based health assessment index...

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First tracking of white stumpnose Rhabdosargus globiceps (Sparidae) in a South African marine protected area

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CG Attwood PD Cowley SE Kerwath TF Naesje F Økland EB Thorstad

There is a growing recreational fishery for white stumpnose Rhabdosargus globiceps (Sparidae) in Langebaan Lagoon, part of South Africa's West Coast National Park. The upper reaches of the lagoon are protected from fishing, but the extent to which the closure...

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A simple implementation of the statistical modelling framework Gadget for cod in Icelandic waters

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Taylor J Begley V Kupca G Stefansson

Gadget is a statistical modelling framework that can be used to assess individual fish stocks and to create multispecies, multi-fleet and multi-area models. The development of a complex multispecies model requires understanding of the modelled single-species population. Simple single-species models...

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A visual and acoustic survey for harbour porpoises off North-West Africa: further evidence of a discrete population

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: O Boisseau J Matthews D Gillespie C Lacey A Moscrop N El Ouamari

The distribution of harbour porpoises Phocoena phocoena in southern Europe and along the Atlantic African coast is poorly understood, with tentative assessments suggesting a discrete West African population with a northern limit around the Straits of Gibraltar. This study describes...

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Refined estimates of South African pelagic fish biomass from hydro-acoustic surveys: quantifying the effects of target strength, signal attenuation and receiver saturation

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JC Coetzee D Merkle CL de Moor NM Twatwa M Barange DS Butterworth

The biomass of small pelagic fish species off the coast of South Africa has been monitored since 1984 using hydro-acoustic survey techniques. These time-series of spawner biomass and recruitment estimates form the basis for management of both the South African...

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Revised estimates of abundance of South African sardine and anchovy from acoustic surveys adjusting for echosounder saturation in earlier surveys and attenuation effects for sardine

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CL de Moor DS Butterworth JC Coetzee

Hydro-acoustic surveys have been used to provide annual estimates of May recruitment and November spawner biomass of the South African sardine Sardinops sagax and anchovy Engraulis encrasicolus resources since 1984. These time-series of abundance estimates form the backbone of the...

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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 Næsje

The 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...

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Catching and tracking the world's largest Zambezi (bull) shark Carcharhinus leucas in the Breede Estuary, South Africa: the first 43 hours

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ME McCord SJ Lamberth

The Zambezi or bull shark Carcharhinus leucas is a large, predatory shark that occurs in warm-temperate, tropical and subtropical coastal and estuarine systems worldwide. To confirm reports of Zambezi sharks in the Breede Estuary on the south-west coast of South...

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Otoliths and vertebrae as potential hard structures for ageing South African yellowfin tuna Thunnus albacares

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JD Filmalter --- Department of Ichthyology and Fisheries Science, South Africa OLF Weyl --- Department of Ichthyology and Fisheries Science, South Africa W Sauer --- Department of Ichthyology and Fisheries Science, South Africa

Sagittal otoliths and vertebrae from 46 yellowfin tuna Thunnus albacares (118-175 cm fork length) collected off the west coast of South Africa were assessed for potential usefulness in age estimation. Growth increments were found on both structures. Comparisons of growth...

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Variations in the dominant algal bloom-forming species in the western South China Sea from 1993 to 2007

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CL Liu --- Key Laboratory of Tropical Marine Environmental Dynamics, and Key Laboratory of Marine Bio-resources Sustainable Utilization, China DL Tang --- Key Laboratory of Tropical Marine Environmental Dynamics, and Key Laboratory of Marine Bio-resources Sustainable Utilization, China SF Wang --- Key Laboratory of Tropical Marine Environmental Dynamics, and Key Laboratory of Marine Bio-resources Sustainable Utilization, China L Nguyen-Ngoc --- , Vietnam

The study investigated the spatial and temporal variations of harmful algal bloom (HAB) species in the western South China Sea (SCS) for the period 1993-2007, using in situ HAB and remotely sensed datasets. A significant change in the dominant bloom...

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Design and calibration of an acoustic telemetry system subject to upwelling events

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Singh --- Department of Environmental Affairs, South Africa NJ Downey --- , South Africa MJ Roberts --- Department of Environmental Affairs, South Africa DM Webber --- , Canada MJ Smale --- , South Africa MA van den Berg --- Department of Environmental Affairs, South Africa RT Harding --- Department of Environmental Affairs, South Africa DC Engelbrecht --- , South Africa BM Blows --- , South Africa

The experiments described were designed to calibrate a hexagonal array of VEMCO VR2 receivers and transmitters (model V9P-6L-S256) in isothermal and stratified water columns off the south coast of South Africa. The array, configured with 500 m between receivers, was...

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Communal area grazing strategies: institutions and traditional practices

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: B Moyo S Dube M Lesoli PJ Masika

Grazing strategies found in communal areas are a result of interactions between social, ecological and institutional factors. To understand the processes in operation, and help in improving management, the perceptions of communal people on institutional structures, utilisation patterns and possible...

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Coming to grips with 'abandoned arable' land in efforts to enhance communal grazing systems in the Eastern Cape province, South Africa

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JK Davis A Ainslie A Finca

The communal lands of the Eastern Cape have been regarded as both tools and problems by policy-makers. In particular, communal lands are problematised as environmentally degraded, of suboptimum productivity and constraining economic development. The Eastern Cape Communal Arable Lands Research...

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A note on the potential nutritive value of Ziziphus mucronata (buffalo thorn) foliage during different seasons

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Abubeker Hassen --- Department of Animal and Wildlife Science, South Africa NFG Rethman --- Department of Plant Production and Soil Science, South Africa WA van Niekerk --- Department of Animal and Wildlife Science, South Africa

Foliage of Ziziphus mucronata (buffalo thorn) was collected during the spring, summer and autumn. The chemical composition and in vitro digestibility of organic matter (IVDOM) of these samples were determined. Crude protein concentration ranged between 123–262 g kg DM−1, and...

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Level spaces for lattice-valued uniform convergence spaces

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Gunther Jäger

We 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...

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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 Price

Understanding 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...

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A comparison of deterministically predicted genetic gains with those realised in a South African Eucalyptus grandis breeding program

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: SD Verryn CL Snedden KA Eatwell

Tree breeders attempt to predict the genetic gains that are likely to be achieved through selection and breeding of new generations, using stochastic or deterministic modelling. There are many factors that may cause a discrepancy between the predicted and realised...

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Comparative growth performance of different Australian provenances and local land races of Grevillea robusta at Lushoto and Ubiri in the West Usambara Mountains, Tanzania

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: LM Madadi --- Lushoto Silviculture Research Centre, Tanzania SC Mathias --- Lushoto Silviculture Research Centre, Tanzania WA Mugasha --- , Tanzania L Nshubemuki --- , Tanzania ST Mwihomeke --- Department of Forestry, South Africa

Growth of seven Grevillea robusta provenances from its natural habitat in northern New South Wales and southern Queensland, Australia, and five local land races were studied at two trial sites established in November 1998 at Lushoto and Ubiri in the...

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Toward sustainable harvesting of Africa's largest medicinal plant export (Prunus africana): a case study in Tanzania

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: JR Maximillian --- College of Natural Resources, USA J O'Laughlin --- College of Natural Resources, USA

Global demand for treating prostate disorders with Prunus africana bark extract has made P. africana Africa's largest medicinal plant export. Unsustainable harvesting practices can lead to local extirpations of this multipurpose tree. Survey research targeting P. africana harvesters in a...

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Empowering Academics the Viskerian Way

Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Johannes L van der Walt --- Faculty of Education Sciences, Ferdinand J Potgieter --- , Charl C Wolhuter --- ,

Academics and/or scholars increasingly feel that their academic voice (combined or individual) has been squelched by the demands of performativity in its various guises, and resultantly, that they have been caught up in a process of steady disempowerment. Rather, it...

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Alternative approaches to Red-billed Quelea Quelea quelea management: mass-capture for food

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Clive CH Elliott --- Blue Barn House, South Leigh, UK Boaz N Mtobesya --- Plant Health Services, Tanzania Robert A Cheke --- Natural Resources Institute, UK

Organophosphate pesticide spraying or the deployment of explosives as standard practices for controlling quelea breeding colonies or roosts that threaten small-grain crops in Africa have negative side-effects on non-target birds and on the environment. Mass-capture techniques were tested as an...

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Breeding ecology of the Chestnut-backed Sparrowlark Eremopterix leucotis in an agroecosystem in the Limpopo province, South Africa

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Derek Engelbrecht --- Department of Biodiversity, South Africa Lucket Dikgale --- Department of Biodiversity, South Africa

We studied the breeding ecology of the Chestnut-backed Sparrowlark Eremopterix leucotis over three years between 2008 and 2010. The breeding season was bimodal with a main peak in laying in autumn (March–April) and another smaller peak in spring (September–October). Nest...

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Abundance, composition and distribution of solid wastes in the Tanzanian waters of Lake Victoria

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GW Ngupula --- Tanzania Fisheries Research Institute (TAFIRI), Tanzania RJ Kayanda --- Tanzania Fisheries Research Institute (TAFIRI), Tanzania CA Mashafi --- Tanzania Fisheries Research Institute (TAFIRI), Tanzania

The abundance, composition and distribution of solid waste in the Tanzanian waters of Lake Victoria were quantified during surveys in May and October 2013 at 68 stations in six depth strata using the bottom trawl swept area method. By weight,...

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Serum resistin levels in nonalcoholic fatty liver disease and their relationship to severity of liver disease

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: A Murad --- Department of Internal Medicine, Faculty of Medicine, Egypt H Hassan --- Department of Chemical Pathology, Faculty of Medicine, Egypt H Husein --- Department of Chemical Pathology, Faculty of Medicine, Egypt A Ayad --- Department of Surgery, Faculty of Medicine, Egypt

Background: Resistin is a hormone that is linked to the development of insulin resistance (IR), but information on the direct relationship of resistin levels in humans with nonalcoholic fatty liver disease (NAFLD), and their effect on the histological severity of...

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A survey of metabolic syndrome in first-degree relatives (fathers) of patients with polycystic ovarian syndrome

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: M Akbarzadeh --- Academic Instructor, Iran F Moradi --- Midwife, University of Medical Sciences, Iran MH Dabbaghmanesh --- Department of Internal Medicine, Endocrine and Metabolism Research Center, Iran P Jafari --- Department of Biostatistics, Iran ME Parsanezhad --- Department of Obstetrics and Gynecology, Iran

Objectives: Women with polycystic ovarian syndrome (PCOS) are at twice the risk of developing metabolic syndrome, compared to women from the general population. The aim of this study was to assess the prevalence of metabolic syndrome in the first-degree relatives...

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Lipid accumulation and alkaline phosphatase activity in human preadipocytes isolated from different body fat depots

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: AT Ali --- Department of Chemical Pathology, National Health Laboratory Service, WF Ferris --- Division of Endocrinology, Department of Medicine, Faculty of Health Sciences, CB Penny --- Department of Medicine, M-T Van der Merwe --- University of Pretoria and Waterfall City Hospital, BF Jacobson --- Department of Haematology and Molecular Medicine, National Health Laboratory Service, JE Paiker --- Department of Chemical Pathology, National Health Laboratory Service, NJ Crowther --- Department of Chemical Pathology, National Health Laboratory Service,

Background: Alkaline phosphatase (ALP) controls intracellular lipid accumulation in human preadipocytes, but it is not known whether ALP is expressed in all body fat depots, or whether it has a similar role at all sites.

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Should haemoglobin A_1c be used for the diagnosis of diabetes mellitus in South Africa?

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: JA George --- Department of Chemical Pathology, National Health Laboratory Service,

Diabetes is an important medical problem in sub-Saharan Africa. It has traditionally been diagnosed by means of fasting plasma glucose, random blood glucose or an oral glucose tolerance test. Each of these has limitations and, in 2009, an expert committee...

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Polycystic ovary syndrome

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: S Maharaj --- Department of Endocrinology and Metabolism, Division of Medicine, South Africa A Amod --- Department of Endocrinology and Metabolism, Division of Medicine, South Africa

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Lack of association of glycated haemoglobin with blood pressure and subclinical atherosclerosis in black South Africans: a five-year prospective study

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: ASE Koegelenberg --- Hypertension in Africa Research Team; North-West University, A Kruger --- Africa Unit for Transdisciplinary Health Research, GW Towers --- Centre of Excellence for Nutrition, AE Schutte --- Hypertension in Africa Research Team; North-West University,

Objectives: Hypertension and diabetes are common in rapidly urbanising sub-Saharan African communities. However, lack of longitudinal data in these regions prevents adequate analysis of the link between measures of glycaemia and cardiovascular disease. Therefore, we examined the relationships of fasting...

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Case Studies: Unusual phaeochromocytomas in African families: the importance of genetic testing

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: A Krause --- Division of Human Genetics, South Africa C Feben --- Division of Human Genetics, South Africa C Van Wyk --- Division of Human Genetics, South Africa K Huddle --- Department of Medicine, Division of Endocrinology & Metabolism, South Africa FJ Raal --- Department of Medicine, Division of Endocrinology & Metabolism, South Africa

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Evaluating diagnostic tests

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Johan F. Coetzee --- Department of Anaesthesiology and Critical Care, South Africa

Anaesthesiologists are increasingly more involved in perioperative patient care wherein interpretation of special investigations is crucial to making therapeutic and prognostic decisions. Furthermore, anaesthetic journal publications increasingly rely on diagnostic tests, without paying sufficient attention to the methodology for evaluation...

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Needleless Intravascular Access

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A Milner --- Department of Anaesthesia, South Africa

Healthcare workers (HCWs) are at risk for needlestick injuries (NSIs), and in the modern context infections acquired in this manner may have life-threatening sequelae.

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Anaesthetic implications of a parturient with antiphospholipid antibody syndrome

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: T Singh --- Department of Anaesthesia, India SM Ghosh --- Department of Anaesthesia, India R Agarwala --- Department of Anaesthesia, India K Rahul --- Department of Anaesthesia, India

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Evaluation of three adjusting manoeuvres and type of endotracheal tube in the success of air-Q™ aided tracheal intubation

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: RM Khan --- Department of Anaesthesia and Intensive Care Unit, National Trauma Centre, Sultanate of Oman NK Kaul --- Department of Anaesthesia and Intensive Care Unit, National Trauma Centre, Sultanate of Oman PH Neelakanthan --- Department of Anaesthesia and Intensive Care Unit, National Trauma Centre, Sultanate of Oman PK Sharma --- Sultan Qaboos University Hospital, Sultanate of Oman

Background: The present study observed whether the use of three different adjusting manoeuvres and use of an armoured tracheal tube would increase the success rate of tracheal intubation, aided by the air-Q™ intubating laryngeal airway (air-Q™ ILA).

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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...

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$Regional infraclavicular blocks via the coracoid approach for below-elbow surgery: a comparison between ultrasound guidance with, or without, nerve stimulation$

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, Malaysia

This randomised, observer-blinded study compared brachial plexus infraclavicular block under ultrasound guidance with, or without, nerve stimulation, for patients undergoing below-elbow surgery.

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A comparison of non-invasive versus invasive methods of haemoglobin estimation in patients undergoing intracranial surgery

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Puneet Khanna --- Department of Anaesthesiology, India Vanitha Rajagopalan --- Department of Anaesthesiology, India Gyaninder Singh --- Department of Neuroanaesthesiology, India Hemanshu Prabhakar --- Department of Neuroanaesthesiology, India

Background: Until recently, invasive monitoring techniques were the only ones available for the estimation of haemoglobin (Hb) in the blood. However, following the introduction of a new non-invasive monitor, Hb concentration could be non-invasively and continuously monitored. It allows immediate...

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Myths of anterior mediastinal masses

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: M Castillo --- Mt. Sinai Hospital, USA P Slinger --- University of Toronto, Canada

This lecture will discuss the risks that are associated with the management of patients with anterior mediastinal masses. A plan for risk stratification and preoperative evaluation of such patients will be developed. The indications and available options for anaesthetic management...

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The views of Medical Students on professionalism in South Africa

Item type: Journal Article • Journal: South African Family Practice • Authors: M Van Rooyen --- Department of Family Medicine,

An article on medical professionalism was published in the Annals of Internal Medicine in February 2002 outlining a charter, and the fifth-year medical students of the Medical School of the University of Pretoria were asked to comment on the charter...

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The prevalence of post-abortion syndrome in patients presenting at Kalafong hospital's family medicine clinic after having a termination of pregnancy

Item type: Journal Article • Journal: South African Family Practice • Authors: M Van Rooyen --- Department of Family Medicine, S Smith --- Kalafong Hospital, University of Pretoria,

Background: Post-abortion syndrome (PAS) is said to be the emotional, psychological, physical and spiritual trauma caused by an abortion, which is an event outside the normal range of human experience. Post-abortion syndrome is a type of post-traumatic disorder and is...

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Making Sense of Statistics for Family Practitioners: “Case-control studies”

Item type: Journal Article • Journal: South African Family Practice • Authors: GA Ogunbanjo --- Department of Family Medicine and Primary Health Care, South Africa

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Who are good home-based care volunteers?

Item type: Journal Article • Journal: South African Family Practice • Authors: G Marincowitz --- Department of Family Medicine and Primary Care, Limpopo Province Unit, C Jackson --- CHoiCe (NGO doing home-based care in the Tzaneen municipal area), GS Fehrsen --- Department of Family Medicine,

Aim The aim of the study was to describe the characteristics of volunteers who remained active in the home-based care project located in Tzaneen (Limpopo Province) and thereby assist the project leaders to improve the recruitment and quality of the...

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Fitting the patient to the disease: Repeating Procrustes' mistake in a time of HIV infection

Item type: Journal Article • Journal: South African Family Practice • Authors: DJ Griessei CJ Schoeman BD Henderson --- Department of Paediatrics and Child Health,

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Physically abused women's experiences and expectations of medical practitioners

Item type: Journal Article • Journal: South African Family Practice • Authors: MS Jansen van Rensburg FJ Van Staden --- Department of Psychology,

Background: The purpose of this study was to investigate the frequency of physically abused women's medical consultations, the anatomical location of their injuries and the perceived support given by medical practitioners.

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Risk factors for anaemia in pregnancy in rural KwaZulu-Natal, South Africa: Implication for health education and health promotion

Item type: Journal Article • Journal: South African Family Practice • Authors: M Hoque --- Empangeni Hospital, E Hoque --- Mangosuthu University of Technology, SB Kader --- Wentworth Hospital,

Background: Anaemia in pregnancy is a major public health problem in developing countries. It is associated with an increased risk of maternal and perinatal morbidity and mortality. A high rate of anaemia in pregnancy in the rural population of KwaZulu-Natal...

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The practitioners guide for dealing with the novel Influenza A, H1N1 pandemic

Item type: Journal Article • Journal: South African Family Practice • Authors: M Venter --- Respiratory Virus Unit, South Africa L Blumberg --- Epidemiology Unit, South Africa

Within three months of its discovery, the new Influenza A (Him) swineflu strain has spread to such an extent that a pandemic has been declared by the World Health Organization (WHO). Although most cases seem to be mild, cases of...

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The pattern of sharps injury to health care workers at Witbank Hospital

Item type: Journal Article • Journal: South African Family Practice • Authors: R Lachowicz --- Department of Family Medicine, PA Matthews --- Department of Family Medicine,

Background: The aim of this study was to identify procedures, areas of activity, occupational groups and other variables that carry a high risk of transmission of bloodborne infections from patients to healthcare workers (HCWs) at Witbank Hospital.

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Profile of research methodology and statistics training of undergraduate medical students at South African universities

Item type: Journal Article • Journal: South African Family Practice • Authors: J Dommisse --- Department of Biostatistics, G Joubert --- Department of Biostatistics,

Background: Medical practitioners need to have knowledge of statistics and research principles, especially with the increasing emphasis on evidence-based medicine. The aim of this study was to determine the profile of research methodology and statistics training of undergraduate medical students...

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Prevalence of diabetes mellitus in the rural southern Free State

Item type: Journal Article • Journal: South African Family Practice • Authors: AJ Groenewald --- Department of Chemical Pathology, Faculty of Health Sciences, HJ van Wyk --- Department of Chemical Pathology, Faculty of Health Sciences, CM Walsh --- Department of Nutrition and Dietetics, Faculty of Health Sciences, S van Zyl --- Department of Basic Medical Sciences, Faculty of Health Sciences, LJ van der Merwe --- Department of Basic Medical Sciences, Faculty of Health Sciences,

Background: A worldwide increase in the prevalence of diabetes mellitus (DM) has been reported and an even further increase is expected as a result of lifestyle changes. The objectives of this study were to determine the prevalence of DM in...

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Systemic isotretinoin in the management of acne—a patient questionnaire survey

Item type: Journal Article • Journal: South African Family Practice • Authors: S Burger --- Drug Utilization Research Unit, Department of Pharmacy, South Africa I Truter --- Drug Utilization Research Unit, Department of Pharmacy, South Africa SM Blignault --- Drug Utilization Research Unit, Department of Pharmacy, South Africa DJL Venter --- Department of Statistics, South Africa

Background: The primary aim was to investigate the appropriateness (as outlined in the South African Acne Treatment Guideline1) for the prescription of systemic isotretinoin in the management and counselling of acne in the Nelson Mandela Bay Metropole.

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Presbyastasis: a multifactorial cause of balance problems in the elderly

Item type: Journal Article • Journal: South African Family Practice • Authors: C Rogers --- Division of Communication Sciences and Disorders,

Presbyastasis is the result of age-related physiological changes in the three sensory systems and their central connections that contribute to balance. In all likelihood, presbyastasis is a complex condition involving many intertwined systems rather than a lesion within the vestibular...

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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 Schronen

Attention-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...

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Knowledge, attitudes and behaviours of adolescents in relation to STIs, pregnancy, contraceptive utilization and substance abuse in the Mhlakulo region, Eastern Cape

Item type: Journal Article • Journal: South African Family Practice • Authors: A Bana --- Year-3 COBES Group, VG Bhat --- Department of Medical Microbiology, X Godlwana --- Year-3 COBES Group, S Libazi --- Year-3 COBES Group, Y Maholwana --- Year-3 COBES Group, N Marafungana --- Year-3 COBES Group, K Mona --- Year-3 COBES Group, AM Mbonisweni --- Year-3 COBES Group, N Mbulawa --- Year-3 COBES Group, J Mofuka --- Year-3 COBES Group, NA Mohlajoa --- Year-3 COBES Group, NN Nondula --- Year-3 COBES Group, Y Qubekile --- Year-3 COBES Group, B Ramnaran --- Year-3 COBES Group,

Background: Sexually transmitted infections (STIs) and HIV/AIDS are a major problem in South Africa. This, coupled with a high incidence of teenage pregnancy, alcohol and drug abuse, is of grave concern, especially its impact among the young (15–24 years) and...

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Point-of-care estimation of haemoglobin concentration in all age groups in clinical practice

Item type: Journal Article • Journal: South African Family Practice • Authors: E Schapkaitz --- Department of Haematology and Molecular Medicine, J Mahlangu --- Department of Haematology and Molecular Medicine,

Background: The measurement of haemoglobin (Hb) concentration provides a reliable, primary screening test for the presence and severity of anaemia. The HemoCue® is a point-of-care test for Hb measurement. The introduction of point-of-care testing in hospitals and general practice has...

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Evaluation of point-of-care tests for detecting microalbuminuria in diabetic patients

Item type: Journal Article • Journal: South African Family Practice • Authors: MM Lloyd --- Department of Chemical Pathology, J Kuyl --- Department of Chemical Pathology, H Van Jaarsveld --- Department of Chemical Pathology,

Background: Microalbuminuria, the presence of low levels of albumin in the urine, indicates renal damage and is recognised as a risk factor for the progression of renal and cardiovascular disease. Several international scientific bodies recommend microalbuminuria screening. Point-of-care testing (POCT)...

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A review of childhood vestibular disorders

Item type: Journal Article • Journal: South African Family Practice • Authors: C Rogers --- Division of Communication Sciences and Disorders,

Diagnosis of disorders of balance is challenging, as there are broad differentials and patients may present to a variety of healthcare practitioners, ranging from an audiologist to a psychiatrist. In addition, investigations, both at the bedside and laboratory, are often...

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A preliminary study of the effects of aircraft noise on families who reside in close proximity to an airport

Item type: Journal Article • Journal: South African Family Practice • Authors: D Pillay --- University of the Witwatersrand, K Archary --- University of the Witwatersrand, S Panday --- University of KwaZulu-Natal,

Background: The use of air transportation has grown in the last century, escalating the noise exposure of families residing in close proximity to airports. The audiological effects need to be assessed to determine the impact of this increase on children...

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Aminoglycoside-induced balance deficits: a review of vestibulotoxicity

Item type: Journal Article • Journal: South African Family Practice • Authors: C Rogers --- Division of Communication Sciences and Disorders, L Petersen --- Division of Communication Sciences and Disorders,

This article aims to inform clinicians about the current knowledge on aminoglycoside-induced vestibulotoxicity through a review of the literature. The effects of vestibulotoxicity are irreversible and may be profoundly disabling. It would appear that the sooner vestibular rehabilitation therapy is...

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Acceptance and uptake of voluntary HIV testing among healthcare workers in a South African public hospital

Item type: Journal Article • Journal: South African Family Practice • Authors: LI Zungu --- Department of Health Studies, BA Sanni --- Strategic Health Programmes, National Department of Health,

Background: Healthcare workers are seen as being at the centre of human immunodeficiency virus (HIV)/acquired immune deficiency syndrome (AIDS) management. They are also at risk of HIV infection from occupational exposure to blood-borne pathogens during their daily work activities. Although...

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Private healthcare sector doctors and HIV testing practices in the eThekwini Metro of KwaZulu-Natal

Item type: Journal Article • Journal: South African Family Practice • Authors: P Naidoo --- School of Pharmacy and Pharmacology,

Background: Human immunodeficiency virus (HIV) testing has many logistic and ethical challenges. The UNAIDS/WHO policy statement states that the testing of individuals must be confidential, be accompanied by counselling, and be conducted with informed consent. HIV testing is integral to...

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Common ethical issues related to HIV/AIDS

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 --- Department of Family Medicine and PHC, Faculty of Health Sciences,

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A practical approach to urine dipstick test abnormalities in relation to kidney and urinary tract disorders in children

Item type: Journal Article • Journal: South African Family Practice • Authors: G Van Biljon --- Department of Paediatrics, Faculty of Health Sciences,

The routine use of urine dipstick testing in the consulting room of the family physician has fallen into disfavour for several reasons. One of the arguments cited most often is that it is time consuming and not cost beneficial. This...

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The role of Ubuntu in families living with mental illness in the community

Item type: Journal Article • Journal: South African Family Practice • Authors: C Engelbrecht --- School of Nursing, University of KwaZulu-Natal, MI Kasiram --- School of Social Work and Community Development, University of KwaZulu-Natal,

Background: Families living with mental illness are a vulnerable group in the community. In the African culture, it is accepted that families are embedded safely in a community. In accordance with the principles of Ubuntu, people with mental illness should...

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Microalbuminuria and estimated glomerular filtration rate

Item type: Journal Article • Journal: South African Family Practice • Authors: Y Veriava --- School of Clinical Medicine,

Hypertension and diabetes mellitus are the major causes of renal damage and cardiovascular events. The co-existence of these conditions further increases the risk of progressive renal disease, cardiovascular events, and mortality. Urinary excretion of albumin, even in small amounts, and...

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Uptake of genetic counselling services by patients with cystic fibrosis and their families

Item type: Journal Article • Journal: South African Family Practice • Authors: S Macaulay --- Division of Human Genetics, N Gregersen --- Division of Human Genetics, A Krause --- Division of Human Genetics,

Background: Although cystic fibrosis (CF) is a common genetic condition, genetic counselling services appear to be underutilised by affected families. The aim of this study was to determine the uptake of genetic counselling and mutation testing for CF by relatives...

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Prevalence of chronic pain in patients attending primary healthcare facilities in south-west Tshwane

Item type: Journal Article • Journal: South African Family Practice • Authors: WN Rauf --- Department of Family Medicine, HP Meyer --- Department of Family Medicine, TS Marcus --- Department of Family Medicine, PJ Becker --- Biostatistics Unit,

Objectives: Despite the significant biopsychosocial impact of chronic pain on the health and quality of life of an individual, as well as on healthcare utilisation, no published data are available on the prevalence of chronic pain in the South African...

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Coeliac disease

Item type: Journal Article • Journal: South African Family Practice • Authors: J Badenhorst --- Department of Internal Medicine,

Coeliac disease is an autoimmune enteropathy triggered by the ingestion of gluten-containing cereals, such as wheat, rye and barley. It is estimated to occur in one per cent of people of European ancestry, and in 0.3% of black Africans. Coeliac...

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Human Immunodeficiency Virus Needlestick Injury: Knowledge and Management in a Population of Nigerian Anaesthetists

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: NA Merah --- Department of Anaesthesia, Nigeria CI Okeke --- Department of Anaesthesia, Nigeria OT Kushimo --- Department of Anaesthesia, Nigeria C Meribole --- Department of Anaesthesia, Nigeria OT Alagbe-Brigs --- Department of Anaesthesia, Nigeria

Objective: To determine the knowledge of HIV transmission and of post exposure management, following an HIV- infected needlestick injury, in a population of Nigerian anaesthetists. Subjects and Method: A cross-sectional, prospective assessment was conducted voluntarily in anaesthetists at an annual...

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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...

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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...

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Sociodemographic and clinical profiles of suicidal patients requiring admission to hospitals south of Durban

Item type: Journal Article • Journal: South African Family Practice • Authors: SS Naidoo --- Department of Family Medicine, L Schlebusch --- Department of Behavioural Medicine,

Background: Suicidal behaviour has become a major public health concern worldwide. Non-fatal suicidal attempts outnumber fatal episodes by wide-ranging figures across, and within, many countries. Approximately 6 500 suicides and 130 000 suicide attempts occur annually in South Africa, with...

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Validation of the Meaning in Life Questionnaire in a South African context

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lesego Temane --- School for Psychosocial Behavioural Sciences, South Africa Itumeleng P. Khumalo --- Optentia Research Focus Area, South Africa Marié P. Wissing --- Africa Unit for Transdisciplinary Health Research, South Africa

The aim of this study was to investigate the psychometric properties of the Meaning in Life Questionnaire (MLQ) in a South African sample. A multi-cultural group of undergraduate students (N = 326) completed the MLQ and other measures. Descriptive statistics, reliability, inter-item...

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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 Africa

This 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...

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Beyond ethical imperatives in South African anthropology: morally repugnant and unlikeable subjects

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Ilana van Wyk --- Institute for Humanities in Africa (HUMA), Upper Campus, Humanities Graduate Building, 4 Floor, University of Cape Town, South Africa

In this article, I argue that anthropologists' dislike of their subjects in the field poses both epistemological and ethical questions that go beyond concerns about harming or exploiting those we study, about maintaining human relationships, or about the self-reflexivity and...

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Institutions and social change: a case study of the South African National AIDS Council

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Theodore Powers --- The Human Economy Project, Faculty of Humanities, South Africa

Institutions play an important role in the success or failure of social models, as they promote or limit particular political and economic activities. Central to this point is the understanding that institutions and traditions are in a constant state of...

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‘Distraction from the real difficulties’: ethical deliberations in international health research

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Helen Macdonald --- Social Anthropology, Andrew D. Spiegel --- Social Anthropology,

Increasingly, North based graduate students are seeking South based institutional homes whilst undertaking ethnographic research. Looking from a place in the global South, the article considers how requests to host such students influence, and are influenced by, both local and...

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Lack of association of glycated haemoglobin with blood pressure and subclinical atherosclerosis in black South Africans: a five-year prospective study

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: ASE Koegelenberg --- Hypertension in Africa Research Team; North-West University, A Kruger --- Africa Unit for Transdisciplinary Health Research, GW Towers --- Centre of Excellence for Nutrition, AE Schutte --- Hypertension in Africa Research Team; North-West University,

Objectives: Hypertension and diabetes are common in rapidly urbanising sub-Saharan African communities. However, lack of longitudinal data in these regions prevents adequate analysis of the link between measures of glycaemia and cardiovascular disease. Therefore, we examined the relationships of fasting...

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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 Africa

At 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...

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First-year course experience and college adjustment: a case study

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Tumani Malinga–Musamba --- Department of Social Work, Botswana

This is a study on first year students’ experiences to adjusting to university life. Secondary data analysis was carried out on 49 cases, where students were required to record how they view university life and how they have adjusted. Thematic...

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Marine reserve effects on population density and size structure of commonly and rarely exploited limpets in South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MDV Nakin --- Walter Sisulu University, South Africa CD McQuaid --- Coastal Research Group, Department of Zoology and Entomology, South Africa

Marine reserves are commonly used to conserve living resources, but their effectiveness where policing is difficult is unclear. We compared monthly population density and size structure data collected over 20 months for two rarely and two commonly exploited intertidal limpets...

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Abundance of the Indo-Pacific bottlenose dolphin Tursiops aduncus off south-west Mauritius

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, Mauritius

The abundance of Indo-Pacific bottlenose dolphins Tursiops aduncus off the south-west coast of Mauritius was estimated using capture-mark-recapture modelling. Over the past two decades this population has been subjected to ongoing anthropogenic disturbance in the form of extensive coastal development...

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Evaluation of kikuyu grass and moringa leaves as protein sources in Oreochromis mossambicus diets

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SN Hlophe --- Aquaculture Research Unit, School of Agricultural and Environmental Sciences, South Africa NAG Moyo --- Aquaculture Research Unit, School of Agricultural and Environmental Sciences, South Africa

The ability to utilise leaf meal-based diets by Oreochromis mossambicus of 12.5 g (SD 1) was evaluated. Nine diets of 30% crude protein and 20 MJ gross energy kg–1 dry matter were formulated, comprising eight leaf-meal diets, where kikuyu leaf...

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Obstacles to HIV prevention, treatment and care in selected public universities in South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Blessing Mbatha --- Department of Communication Science, South Africa

South Africa, like the rest of Southern Africa, is ravaged by AIDS. Higher education in South Africa has a significant role to play in the fight against the spread of HIV and AIDS. This article reports the factors contributing to...

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The importance of anthropogenic effects in habitat use and territory size of Northern Anteater-chats Myrmecocichla aethiops near Amurum Forest Reserve, Jos-Plateau, Nigeria

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Biplang G Yadok --- AP Leventis Ornithological Research Institute, Nigeria Yahkat Barshep --- AP Leventis Ornithological Research Institute, Nigeria Will Cresswell --- AP Leventis Ornithological Research Institute, Nigeria

Occurrence of animals in an area and the size of territories they occupy is a function of resource availability and the environmental conditions in that area. Territory location in birds is often determined by availability of nesting habitat and we...

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Congregations of wintering Egyptian Vultures Neophron percnopterus in Afar, Ethiopia: present status and implications for conservation

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Volen Arkumarev --- Bulgarian Society for Protection of Birds/BirdLife Bulgaria, Bulgaria Vladimir Dobrev --- Bulgarian Society for Protection of Birds/BirdLife Bulgaria, Bulgaria Yilma D Abebe --- Ethiopian Wildlife and Natural History Society, Ethiopia Georgi Popgeorgiev --- Bulgarian Society for Protection of Birds/BirdLife Bulgaria, Bulgaria Stoyan C Nikolov --- Bulgarian Society for Protection of Birds/BirdLife Bulgaria, Bulgaria

The Endangered Egyptian Vulture Neophron percnopterus congregates in communal roosts in the wintering areas and where food availability is high, where even a single threat might lead to substantial population declines. Thus, more research on the congregation sites is needed...

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Aspects of the breeding ecology of the Purple Swamphen Porphyrio porphyrio in the wetland complex of Guerbes-Sanhadja, north-east Algeria

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Bara Mouslim --- Laboratoire Ecologie des Systèmes terrestres et aquatiques, Algeria Merzoug Seyf Eddine --- Laboratoire Biologie, Eau et Environnement, Algeria Khelifa Rassim --- Laboratoire Biologie, Eau et Environnement, Algeria Bouslama Zihad --- Laboratoire Ecologie des Systèmes terrestres et aquatiques, Algeria Houhamdi Moussa --- Laboratoire Biologie, Eau et Environnement, Algeria

The Purple Swamphen Porphyrio porphyrio is a common rail that previously was little investigated in North Africa. From 2011 to 2013, its breeding ecology was studied at two natural wetlands in north-east Algeria, namely Garaet Hadj Tahar and Garaet Messaoussa...

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Predictors of student burnout and engagement among university students

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Danél Olwage --- WorkWell Research Unit for Economic and Management Sciences, South Africa Karina Mostert --- WorkWell Research Unit for Economic and Management Sciences, South Africa

This study investigated influences of core self-evaluation traits, career decision-making difficulties and social support on student burnout and engagement. A cross-sectional design was used with a non-probability quota sample. In the multiple regression analyses, self-efficacy, inconsistent information due to internal...

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Disseminated large cell neuroendocrine carcinoma associated with ectopic adrenocorticotropic hormone secretion

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: A Van der Walt --- Department of Internal Medicine, Division of Endocrinology, K Huddle --- Department of Internal Medicine, Division of Endocrinology, S Pather --- Department of Anatomical Pathology, A Korb --- Department of Internal Medicine Division of Endocrinology,

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Aggregate breakdown mechanisms as affected by soil texture and organic matter in soils dominated by primary minerals

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Adornis D Nciizah --- Department of Agronomy, South Africa Isaiah IC Wakindiki --- Department of Agronomy, South Africa

Soil aggregates breakdown mechanisms depend on soil properties such as texture, clay mineralogy and organic matter content. Little is known about the effect of soil properties on aggregate breakdown mechanisms in South African soils. The objective of this study was...

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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, Nigeria

This 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...

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Computerised inventory management for a manufacturing industry: A case study in Nigeria

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Emmanuel Seye Owoeye --- Mechanical Engineering Department, Nigeria Samuel Babatope Adejuyigbe --- Mechanical Engineering Department, Nigeria Bukola Olalekan Bolaji --- Mechanical Engineering Department, Nigeria A.F. Adekoya --- Computer Science Department, Nigeria

Various authors have suggested that the cost of purchasing and holding inventory can account for as much as 60%–80% of the total cost of a product or service. Usually, only some of the inventory (about 10%) contributes to 70%–80% of...

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Institutional barriers to successful innovations: Perceptions of rural farmers and key stakeholders in southwest Nigeria

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Oluwaseun Kolade --- Weeks Centre for Social and Policy Research, UK Trudy Harpham --- Department of Social Sciences, UK Gaim Kibreab --- Department of Social Sciences, UK

Diffusion studies in sub-Saharan Africa have typically focused on the impact of traditional adoption factors on uptake of technological innovations. This study draws on semi-structured interviews of rural farmers and in-depth interviews of stakeholders in southwest Nigeria to examine the...

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Anaesthesia and the developing brain

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Jansie Prozesky --- Department of Pediatric Anesthesia, USA

Increasing 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...

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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, Australia

HIV 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...

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Generational inversions: ‘working’ for social reproduction amid HIV in Swaziland

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Casey Golomski --- Department of Anthropology, South Africa

How do people envision social reproduction when regular modes of generational succession and continuity are disrupted in the context of HIV/AIDS? How and where can scholars identify local ideas for restoring intergenerational practices of obligation and dependency that produce mutuality...

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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 Africa

HIV 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...

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Innovation Policy Reforms, Emerging Role Models and Bridge Institutions: Evidence from North African Economies

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abdelkader Djeflat --- Department of Economics, Labo Clerse UMR 8019-Maghtech Network, France Yevgeny Kuznetsov --- Economic Policy and Debt Department, Wolrd Bank, USA

This article focuses on role models of modern innovation based development and public interventions to diffuse and scale up these role models. It discusses the so-called bridge institutions of innovation, which transform skills into knowledge valued by markets. It shows...

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Landscape, complicity and partitioned zones at South Africa Forest and Lubya in Israel-Palestine

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Heidi Grunebaum --- Centre for Humanities Research, South Africa

In the historical and ideological contests of settler colonial conquest, the making of “landscape” out of land and territory is a powerful instrument in the visual and discursive constructions of nationalist perspectives. This article examines one such site, the Jewish...

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Trauma aesthetics in war documentaries about the Lord's Resistance Army in Uganda

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Okaka Opio Dokotum --- Literature Department, Uganda

Memory studies scholar Cathy Caruth postulates that “history is precisely the way we are implicated in one another's trauma” (24). Given the violent and traumatic history of post-independence Uganda, especially the bloody, insane and protracted Lord's Resistance Army (LRA) insurgency...

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Yvette Christiansë's Oceanic Genealogies and the Colonial Archive: Castaways and Generations from Eastern Africa to the South Atlantic

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Meg Samuelson --- Department of English, South Africa

This article traces tropes of dispersal and continuity in Yvette Christiansë oeuvre as it performs a genealogical enquiry through oceanic spaces and in and out of the colonial archive. Revolving respectively around St Helena and the Cape, both the poetry...

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The New (Asian) African: Politics and Creativity in the 1960s

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: M.G. Vassanji --- ,

Just before independence, and in the years that followed in the 1960s, attempts were made by a professional Asian elite in the three East African countries to formulate a genuine African identity for the Asians; at the same time, in...

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Sexuality, Power and Transgression: Homophobia in Abdulrazak Gurnah's Memory of Departure

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Kimani Kaigai --- Literature Department, Kenya

This paper offers a reading of Zanzibari-born, UK-based writer, Abdulrazak Gurnah’ debut novel, Memory of Departure in order to explore how the novel positions sexual activities that are seen as transgressive and how contestations over these bodily activities imply issues...

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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 Africa

This 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...

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The role of educational psychologists in promoting ethical research conducted with children: an exploratory study

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jace Pillay --- South African Research Chair in Education and care in Childhood, Faculty of Education, South Africa

This study explored perceptions of educational psychologists on their role in promoting ethical research involving children. Participants were 10 South African educational psychologists (females = 60%; males = 40%) from mostly public services (90%). Data on their perceived roles in...

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Seasonal variability of secondary production of cladocerans and rotifers, and their trophic role in Lake Tana, Ethiopia, a large, turbid, tropical highland lake

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Wondie --- Department of Fisheries, Wetlands and Wildlife, Faculty of Agriculture and Environment, Ethiopia S Mengistou --- Department of Zoological Sciences, Ethiopia

Daily and annual production rates of eight cladoceran and two rotifer species, and their seasonal variation and trophic role in the large, turbid, tropical Lake Tana, Ethiopia, were assessed in 2003–2005. Laboratory cultures were used to infer cladoceran development times,...

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Efficiency of using green algae as biological controllers against toxic algal taxa in cultured Nile tilapia Oreochromis niloticus, based on histopathological examinations

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SM Aly --- Department of Pathology, Faculty of Veterinary Medicine, Egypt EM Ali --- Department of Environmental Sciences, Faculty of Sciences, Egypt AA Dessouki --- Department of Pathology, Faculty of Veterinary Medicine, Egypt AA Dawah --- Department of Limnology, Egypt

The incidence of harmful cyanobacterial blooms in surface waters has increased in frequency and outbreaks have become more severe. This research aimed at studying the effect of a culture of two green algal species as biological control of the growth...

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Predation on invasive redclaw crayfish Cherax quadricarinatus by native fishes in the Kafue River, Zambia

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AB. Tyser --- School of Biosciences, UK RJ. Douthwaite --- Kafue River Trust, UK

The stomach contents of eight species of predatory or omnivorous fish caught in gillnets in the Kafue River in May and June 2010 were examined to determine the relative importance, expressed as ‘prominence value’ (PV), of crayfish Cherax quadricarinatus in...

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Culture environment and hatchery of origin influence growth, condition and feeding organ morphology in the Pacific oyster Crassostrea gigas in South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Nel --- Department of Botany and Zoology, South Africa G Pitcher --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries, South Africa NB Richoux --- Department of Zoology and Entomology, South Africa S Jackson --- Department of Botany and Zoology, South Africa

South Africa lacks a commercial oyster hatchery. To inform the sourcing of seed for future hatchery establishments, we compared half-sib Pacific oyster Crassostrea gigas cohorts from hatcheries in Namibia and Chile. We measured oyster growth, mortality, condition and feeding organ...

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Fifteen years of annual Cape Parrot Poicephalus robustus censuses: current population trends and conservation contributions

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Colleen T Downs --- School of Life Sciences, South Africa Morgan Pfeiffer --- School of Life Sciences, South Africa Lorinda A Hart --- School of Life Sciences, South Africa

The Cape Parrot Poicephalus robustus is endemic to South Africa and numbers have reportedly declined since the early 1900s. It is a forest specialist and food nomadic, moving between patches depending on fruit availability. This makes it difficult to estimate...

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Breeding ecology of the Seychelles Black Parrot Coracopsis barklyi

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Anna Reuleaux --- Seychelles Islands Foundation, Seychelles Heather Richards --- Seychelles Islands Foundation, Seychelles Terence Payet --- Seychelles Islands Foundation, Seychelles Pascal Villard --- Seychelles Islands Foundation, Seychelles Matthias Waltert --- Department of Conservation Biology, Germany Nancy Bunbury --- Seychelles Islands Foundation, Seychelles

Knowledge of breeding ecology is required for many conservation interventions. The Seychelles Black Parrot Coracopsis barklyi, endemic to the island of Praslin, is vulnerable to extinction. We aimed to improve understanding of C. barklyi breeding ecology to aid conservation planning...

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A review of occupational exposure to blood and blood products in medical students in a South African university

Item type: Journal Article • Journal: South African Family Practice • Authors: Andrew Ross --- Department of Family Medicine, Nelson R Mandela School of Medicine, South Africa Sean Cheevers --- Occupational and Student Health Services, South Africa Laura Campbell --- Teaching and Learning in Clinical Medicine, South Africa

Background: There is a significant risk of a medical student acquiring a blood-borne pathogen following occupational exposure to blood and other bodily fluids from infected patients in the healthcare setting. Internationally and nationally, interventions have been implemented in medical schools...

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The experiences of people living with HIV/AIDS in Gaborone, Botswana: stigma, its consequences and coping mechanisms

Item type: Journal Article • Journal: South African Family Practice • Authors: Vincent Setlhare --- Department of Family Medicine, Botswana Anne Wright --- Department of Family Medicine, South Africa Ian Couper --- Department of Family Medicine, South Africa

Background: This study was carried out in Bontleng, Extension 14 and Old Naledi, which are low-income residential areas of Gaborone, Botswana. The aim of the study was to explore the experiences of people living with human immunodeficiency virus/acquired immune deficiency...

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The psychometric properties of the Recovery Experiences Questionnaire of employees in a higher education institution

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karina Mostert --- WorkWell: Research Unit for Economic and Management Sciences, South Africa Crizelle Els --- WorkWell: Research Unit for Economic and Management Sciences, South Africa

The objective of this study was to investigate the factorial validity and reliability of scores from the Recovery Experience Questionnaire (REQ) in a higher education institution. As part of the measure validation, the relationships of the four recovery dimensions (psychological...

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An innovative drought early warning system for sub-Saharan Africa: integrating modern and indigenous approaches

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Muthoni Masinde --- Department of Information Technology, South Africa

Droughts remain the number one disaster in Africa; drought is responsible for over 88% of all the types of disasters that people are affected by. An effective drought early warning system can support appropriate mitigation and preparedness strategies and hence...

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Evaluating the inheritance of Ceratocystis acaciivora symptom expression in a diverse Acacia mangium breeding population

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Jeremy Brawner --- Forest Industries Research Centre, Australia Yani Japarudin --- Sabah Softwood Berhad, Malaysia Mahadir Lapammu --- Sabah Softwood Berhad, Malaysia Redzuan Rauf --- Sabah Softwood Berhad, Malaysia David Boden --- Boden and Associates Pty Ltd, Australia Michael J Wingfield --- Forestry and Agricultural Biotechnology Institute, South Africa

A dramatic rise in the incidence of a serious canker and wilt disease of Acacia mangium has led to the replacement of thousands of hectares of plantation forests in eastern Sabah. A disease screening program was initiated to evaluate levels...

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The nutrient intake of children aged 12–36 months living in two communities in the Breede Valley, Western Cape province, South Africa

Item type: Journal Article • Journal: South African Family Practice • Authors: TA Balogun --- Division of Community Health, South Africa MJ Lombard --- Division of Human Nutrition, South Africa M McLachlan --- Division of Human Nutrition, South Africa

Objective: The objective of this study was to describe the current macro- and micronutrient intake of children (both boys and girls) in two selected communities in the Breede Valley, Worcester.

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First report of an Anabaena Bory strain containing microcystin-LR in a freshwater body in Africa

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PJ Oberholster --- CSIR Natural Resources and the Environment, South Africa S Jappie --- Department of Genetics, South Africa PH Cheng --- CSIR Natural Resources and the Environment, South Africa AM Botha --- Department of Genetics, South Africa MW Matthews --- Marine Remote Sensing Unit, South Africa

In South Africa, little is known about the production of microcystin by the genus Anabaena Bory. In April 2012, during a cyanobacterial bloom event in Theewaterskloof Dam, Western Cape province, the plankton was sampled on 10 occasions. The dominant algae...

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Pseudo-egg and exotic egg adoption by Kelp Gulls Larus dominicanus vetula

Item type: Journal Article • Journal: African Zoology • Authors: Minke Witteveen --- Percy FitzPatrick Institute of African Ornithology, University of Cape Town, South Africa Mark Brown --- School of Life Sciences, University of KwaZulu-Natal, South Africa Peter G Ryan --- Percy FitzPatrick Institute of African Ornithology, University of Cape Town, South Africa

Ground-nesting birds, particularly larids, are known to include a variety of items in their nests as pseudo-eggs, as well as to adopt the eggs of conspecifics or other species. Three hypotheses have been put forward to explain this phenomenon: incubation...

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New discoveries on the ecology and echolocation of the heart-nosed bat Cardioderma cor with a contribution to the phylogeny of Megadermatidae

Item type: Journal Article • Journal: African Zoology • Authors: Peter Kaňuch --- Institute of Forest Ecology, Slovak Academy of Sciences, Slovakia Tatiana Aghová --- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Czech Republic Yonas Meheretu --- Department of Biology, Mekelle University, Ethiopia Radim &Scaron;umbera --- Department of Zoology, University of South Bohemia, Czech Republic Josef Bryja --- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Czech Republic

In this study we report findings in roosting ecology, ectoparasites, echolocation characteristics and the phylogenetic position of Cardioderma cor, an impressive bat species that is distributed throughout the savannas and woodlands of eastern Africa. For individuals caught in Mago National...

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Phylogenetic relationships in the genus Aethomys (Rodentia: Muridae)

Item type: Journal Article • Journal: African Zoology • Authors: C.T. Chimimba --- Mammal Research Institute, Department of Zoology and Entomology, South Africa

Phylogenetic relationships in the genus Aethomys were examined based on qualitative cranial data for all currently recognized species. A cladistic analysis suggested the presence of three clades: 1) A. bocagei, A. thomasi, A. silindensis, A. kaiseri, and A. nyikae;2) A...

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Sexual size dimorphism in montane cordylid lizards: a case study of the dwarf crag lizard, Pseudocordylus nebulosus

Item type: Journal Article • Journal: African Zoology • Authors: Eloise Costandius --- Department of Botany & Zoology, South Africa P. le Fras N. Mouton --- Department of Botany & Zoology, South Africa

The aim of this study was to provide information on sexual size dimorphism (SSD) in Pseudocordylus nebulosus and to discuss the observed variation in SSD among montane cordylids. Data for P. nebulosus were recorded in the Landdroskop area in the...

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Thermoregulation under semi-natural conditions in speckled mousebirds: the role of communal roosting

Item type: Journal Article • Journal: African Zoology • Authors: Andrew E. McKechnie --- School of Biological and Conservation Sciences, University of KwaZulu-Natal, South Africa Gerhard Körtner --- School of Biological and Conservation Sciences, University of KwaZulu-Natal, South Africa Barry G. Lovegrove --- School of Biological and Conservation Sciences, University of KwaZulu-Natal, South Africa

Mousebirds (Coliiformes) exhibit well-developed communal roosting behaviour as well as a pronounced capacity for facultative hypothermic responses. We recorded body temperature (Tb)) in speckled mousebirds (Colius striatus) under semi-natural conditions in outdoor aviaries, and examined interactions between behavioural and metabolic...

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Variation in the timing of reproduction of the four-striped field mouse, Rhabdomys pumilio, in the Eastern Cape Province, South Africa

Item type: Journal Article • Journal: African Zoology • Authors: Claire Jackson --- Department of Zoology and Entomology, South Africa Ric T. F. Bernard --- Department of Zoology and Entomology, South Africa

We used the four-striped field mouse, Rhabdomys pumilio (Sparrmann, 1784), to test the hypothesis that reproduction in a small, short-lived mammal will be opportunistic, characterized by temporal and spatial variation in the timing of events, and only be inhibited under...

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Potential of Metriaclima lanisticola (Teleostei: Cichlidae) for biological control of schistosome intermediate host snails

Item type: Journal Article • Journal: African Zoology • Authors: Mary Lundeba --- Aquaculture and Fisheries Science Department, Malawi Jeremy S. Likongwe --- Aquaculture and Fisheries Science Department, Malawi Henry Madsen --- DBL Center for Health Research and Development, Denmark Jay R. Stauffer --- School of Forest Resources, Penn State University, U.S.A.

Metriaclima lanisticola, a native cichlid of Lake Malawi, was studied under laboratory conditions to evaluate its possible role as a predator of snails (Bulinus spp.). Bulinus globosus, B. nyassanus and B. tropicus were used as prey. B. globosus and B...

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The incidence of torpor in winter and summer in the Angolan free-tailed bat, Mops condylurus (Microchiroptera: Molossidae), in a subtropical environment, Mpumulanga, South Africa

Item type: Journal Article • Journal: African Zoology • Authors: L. Vivier --- Zoology Department, South Africa M. van der Merwe --- Department of Zoology and Entomology, South Africa

The incidence of torpor during summer and winter in response to cold exposure in Mops condylurus was studied in a subtropical environment. Body temperature changes under natural roosting conditions during winter and summer were monitored using bats fitted with temperature-sensitive...

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Waterfowl abundance and diversity in relation to season, wetland characteristics and land-use in semi-arid South Africa

Item type: Journal Article • Journal: African Zoology • Authors: Ashley A. Raeside --- Department of Biology, Canada Scott A. Petrie --- Long Point Waterfowl and Wetlands Research Fund, Bird Studies Canada, Canada Thomas D. Nudds --- Department of Integrative Biology, Ecology Group, Canada

We studied waterfowl abundance and diversity in relation to season (wet vs dry), wetland characteristics (vegetation and morphometrics) and land-use in a semi-arid agricultural region of South Africa to determine how waterfowl respond to various wetland characteristics, particularly those of...

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Do dwarf chameleons (Bradypodion) show developmental plasticity?

Item type: Journal Article • Journal: African Zoology • Authors: Ashadee K. Miller --- School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, South Africa Graham J. Alexander --- School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, South Africa

Developmental plasticity results from environmental influences on the phenotype of an organism during its development, and its effects are irreversible. The phenomenon of phenotype–genotype uncoupling (plasticity) causes problems in species delineations, and has been suggested as a cause underlying a...

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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 Africa

Sugar 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...

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Effects of temperature and salinity on resting metabolism in two South African rock pool fish: the resident gobiid Caffrogobius caffer and the transient sparid Diplodus sargus capensis

Item type: Journal Article • Journal: African Zoology • Authors: J. O. G. Kemp [AN0001]

Intertidal rock pools are inherently dynamic environments that experience marked changes in physico-chemical parameters over diel, tidal and seasonal time scales. Fish that inhabit the intertidal zone can generally be characterized as either permanent residents or transients/visitors. This study investigates...

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Morphometric variation in the Tunisian green frog, Rana saharica Anura: Ranidae)

Item type: Journal Article • Journal: African Zoology • Authors: Nabil Amor --- Research Unit: Genetics, Biodiversity and Bio-Resources Development, Biotechnology Institute of Monastir, Tunisia Sarra Farjallah --- Research Unit: Genetics, Biodiversity and Bio-Resources Development, Biotechnology Institute of Monastir, Tunisia Khaled Said --- Research Unit: Genetics, Biodiversity and Bio-Resources Development, Biotechnology Institute of Monastir, Tunisia

Rana saharica is the most widely distributed anuran in Tunisia. We examined morphological variation in 124 specimens as a function of their geographical origin, using univariate and multivariate statistics with traditional morphometrics. Our results supported the existence of three morphotypes...

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Comparative analysis of long-range calls in equid stallions (Equidae): are acoustic parameters related to social organization?

Item type: Journal Article • Journal: African Zoology • Authors: Richard Policht --- Institute of Tropics and Subtropics, Czech University of Life Sciences Prague, Czech Republic Alexis Karadžos --- Department of Zoology, Faculty of Science, Czech Republic Daniel Frynta --- Department of Zoology, Faculty of Science, Czech Republic

Evolution of long-distance communication in equids may correspond with species-specific types of social organization. To compare harem-forming species (type I) with those that do not establish permanent social units (type II), we conducted a comparative analysis of stallion long-range calls...

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First assessment of estuarine space use and home range of juvenile white steenbras, Lithognathus lithognathus

Item type: Journal Article • Journal: African Zoology • Authors: R. H. Bennett --- Department of Ichthyology and Fisheries Science, South Africa A. R. Childs --- Department of Ichthyology and Fisheries Science, South Africa P. D. Cowley --- South African Institute for Aquatic Biodiversity, South Africa T. F. Næsje --- Norwegian Institute for Nature Research, Norway E. B. Thorstad --- Norwegian Institute for Nature Research, Norway F. Økland --- Norwegian Institute for Nature Research, Norway

The spatial dynamics and home range sizes of early juvenile white steenbras (Lithognathus lithognathus Cuvier, 1829) in the permanently open Great Fish Estuary, South Africa, were assessed using acoustic telemetry. Seven individuals (154–184 mm fork length) tagged with acoustic transmitters...

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Breeding ecology of the pink-billed lark, Spizocorys conirostris, in an agricultural landscape in South Africa

Item type: Journal Article • Journal: African Zoology • Authors: D. Engelbrecht --- Department of Biodiversity, South Africa M.H.T. Mathonsi --- Department of Biodiversity, South Africa

We studied the breeding ecology, parental care and nesting success of the pink-billed lark, Spizocorys conirostris, in an agricultural landscape in the Limpopo Province of South Africa, from October 2008 to October 2010. The results are compared with data in...

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Acoustic niche partitioning in an anuran community inhabiting an Afromontane wetland (Butare, Rwanda)

Item type: Journal Article • Journal: African Zoology • Authors: Ulrich Sinsch --- Institute of Integrated Sciences, Department of Biology, Germany Katrin Lümkemann --- Institute of Integrated Sciences, Department of Biology, Germany Katharina Rosar --- Institute of Integrated Sciences, Department of Biology, Germany Christiane Schwarz --- Institute of Integrated Sciences, Department of Biology, Germany Maximilian Dehling --- Institute of Integrated Sciences, Department of Biology, Germany

The species richness and calling activity of an anuran community inhabiting an agricultural wetland area at 1645 m a.s.l. near Butare, Rwanda, was assessed using visual and acoustic transects. The community included 15 species which were readily distinguishable using morphological,...

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Gastrointestinal protozoa and digestive tract parameters of wild South African warthogs (Phacochoerus aethiopicus)

Item type: Journal Article • Journal: African Zoology • Authors: D.G. Booyse --- Department of Anatomy and Physiology, B.A. Dehority --- Department of Animal Sciences,

The warthog (Phacochoerus aethiopicus) is a grazer and hindgut fermenter with an apparent unique population of protozoa; however, only a limited number of specimens have been studied to date. In addition to having a very low number of protozoal species,...

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Post-weaning changes in the digestive physiology and caecal fermentative activity in the greater cane rat (Thryonomys swinderianus)

Item type: Journal Article • Journal: African Zoology • Authors: Y.M. Yapi --- National Polytechnic Institute Houphouët-Boigny of Yamoussoukro, Ivory Coast T. Gidenne --- INRA, UMR1289 Tissus Animaux Nutrition Digestion Ecosystème et Métabolisme, France Y. Farizon --- Université de Toulouse INPT ENVT, UMR1289 Tissus Animaux Nutrition Digestion Ecosystème et Métabolisme, France M. Segura --- INRA, UMR1289 Tissus Animaux Nutrition Digestion Ecosystème et Métabolisme, France D. Zongo --- National Polytechnic Institute Houphouët-Boigny of Yamoussoukro, Ivory Coast F. Enjalbert --- Université de Toulouse INPT ENVT, UMR1289 Tissus Animaux Nutrition Digestion Ecosystème et Métabolisme, France

The greater cane rat is a recently domesticated monogastric herbivore, and the importance of the caecum in the functioning of its digestive tract has frequently been mentioned. However, no data are available on caecal fermentative activity of this animal and...

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Survey of gastrointestinal parasite infection in African lion (Panthera leo), African wild dog (Lycaon pictus) and spotted hyaena (Crocuta crocuta) in the Luangwa Valley, Zambia

Item type: Journal Article • Journal: African Zoology • Authors: Are R. Berentsen --- USDA/APHIS/WS/National Wildlife Research Center, U.S.A., 80521 Matthew S. Becker --- Zambian Carnivore Programme, Zambia Heather Stockdale-Walden --- University of Florida College of Veterinary Medicine, Department of Infectious Diseases and Pathology, U.S.A., 32608 Wigganson Matandiko --- Zambia Wildlife Authority, Zambia Rachel McRobb --- South Luangwa Conservation Society, Montana Mike R. Dunbar --- USDA/APHIS/WS/National Wildlife Research Center, U.S.A., 80521

Little is known about gastrointestinal parasite infections in large carnivores in Africa and what is available is largely from East Africa. We collected faecal samples from nine spotted hyaenas (Crocuta crocuta), 15 lions (Panthera leo) and 13 African wild dog...

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Seasonal and daily activity patterns of leopard tortoises (Stigmochelys pardalis Bell, 1828) on farmland in the Nama-Karoo, South Africa

Item type: Journal Article • Journal: African Zoology • Authors: M. K. McMaster --- School of Life Sciences, University of KwaZulu-Natal, South Africa C. T. Downs --- School of Life Sciences, University of KwaZulu-Natal, South Africa

The leopard tortoise (Stigmochelys pardalis) is the largest of southern Africa’s 13 tortoise species, and occurs in a variety of habitats from arid and semi-arid areas to mesic grassveld, savanna and bushveld. Seasonal activity patterns of S. pardalis were investigated...

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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 Africa

Baits 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...

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Climate and the evolution of group-living behaviour in the armadillo lizard (Ouroborus cataphractus)

Item type: Journal Article • Journal: African Zoology • Authors: Cindy Shuttleworth --- Department of Botany and Zoology, South Africa P. le Fras N. Mouton --- Department of Botany and Zoology, South Africa Adriaan van Niekerk --- Department of Geography and Environmental Studies, South Africa

We evaluated the hypothesis that the regular use of the southern harvester termite, Microhodotermes viator, as food source by the armadillo lizard, Ouroborus cataphractus, originated as an adaptation to survive the summer dry season in a climatic regime where rainfall...

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Adaptations to life on arid islands of South Africa: renal performance and phenotypic plasticity in the European rabbit Oryctolagus cuniculus

Item type: Journal Article • Journal: African Zoology • Authors: Gareth J. Tate --- Department of Biological Sciences, South Africa Heather G. Marco --- Department of Biological Sciences, South Africa

Morphological parameters of the mammalian kidney can provide information on the extent to which an animal is able to regulate water relations within its body and cope with arid conditions. Certain groups of mammals, such as rabbits and hares, show...

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Microsatellite markers for population genetic studies of the rock firefinch, Lagonosticta sanguinodorsalis

Item type: Journal Article • Journal: African Zoology • Authors: Jacinta Abalaka --- Department of Genetics, South Africa Bengt Hansson --- Department of Biology, Sweden

We identified the first set of microsatellites for use in the rock firefinch (Lagonosticta sanguinodorsalis). First, we tested existing passerine microsatellite loci for cross-species amplification success in a small sample of rock firefinches and identified 10 loci that were seemingly...

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Willingness to pay for marine-based tourism in the Ponta do Ouro Partial Marine Reserve, Mozambique

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CAK Daly --- Department of Economics and Economic History, South Africa G Fraser --- Department of Economics and Economic History, South Africa JD Snowball --- Department of Economics and Economic History, South Africa

Marine and coastal ecosystems face widespread degradation largely because market failure hides the economic value of the goods and services they provide. Marine protected areas (MPAs) can serve as structures that ensure the continued functioning of marine and coastal ecosystem...

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Attitudes of women and men living with HIV and their healthcare providers towards pregnancy and abortion by HIV-positive women in Nigeria and Zambia

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ann M Moore --- The Guttmacher Institute, USA Akinrinola Bankole --- The Guttmacher Institute, USA Olutoin Awolude --- Department of Obstetrics and Gynaecology, College of Medicine, Nigeria Suzette Audam --- The Guttmacher Institute, USA Adesina Oladokun --- Department of Obstetrics and Gynaecology, College of Medicine, Nigeria Isaac Adewole --- Department of Obstetrics and Gynaecology, College of Medicine, Nigeria

Fertility decisions among people living with HIV/AIDS (PLWHA) are complicated by disease progression, the health of their existing children and possible antiretroviral therapy (ART) use, among other factors. Using a sample of HIV-positive women (n = 353) and men (n...

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Experiences of work among people with disabilities who are HIV-positive in Zambia

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Janet Njelesani --- Department of Occupational Science and Occupational Therapy, Canada Stephanie Nixon --- Department of Physical Therapy, Canada Deb Cameron --- Department of Occupational Science and Occupational Therapy, Canada Janet Parsons --- Department of Physical Therapy, Canada Anitha Menon --- Department of Psychology, Zambia

This paper focuses on accounts of how having a disability and being HIV-positive influences experiences of work among 21 people (12 women, 9 men) in Lusaka, Zambia. In-depth semi-structured interviews were conducted in English, Bemba, Nyanja, or Zambian sign language...

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‘Deadly gonorrhoea’: history, collective memory and early HIV epidemiology in East Central Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jan Kuhanen --- Department of Geographical and Historical Studies, Finland

This article combines local oral reminiscences with recent epidemiological literature to sketch a historical context around the onset and expansion of the HIV-1 epidemic in southern Uganda and north-western Tanzania. The local historical imagination has associated the appearance of AIDS...

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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 Africa

This 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...

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How do African Black Oystercatchers Haematopus moquini recruit into high-density populations?

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Douglas Loewenthal --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Dane M Paijmans --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa

Theoretical and empirical studies of oystercatchers both suggest that levels of adult site fidelity, natal philopatry and age-at-first-breeding are interrelated consequences of life-history decisions made by potential breeders. All are fundamental to explaining population dynamics and have important conservation implications...

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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 Netherlands

This 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:...

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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, Nigeria

This 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...

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Characteristics of agriculture technology and application of an agricultural innovation system in Tanzania

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Athman H. Mgumia --- Tanzania Commission for Science and Technology (COSTECH), Dar es Salaam, Tanzania Amon Z. Mattee --- Department of Agricultural Education and Extension, Tanzania Beatus A.T Kundi --- Department of Mechanical & Industrial Engineering, College of Engineering & Technology (COeT), Tanzania

The globalisation of the world economy and advancements in science, including the use of biotechnology for agricultural production has subjected agricultural technologies to market forces for their generation and dissemination. It is evident, however, that while some technologies are more...

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Researching in the middle ground

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: J. Hooks --- Massey University (Albany Campus), H. Davey --- University of Waikato Management School, D. Coy --- University of Waikato Management School,

Scientific approaches to research produce one kind of knowledge and have tended to dominate accounting research, particularly research concerning disclosure and disclosure indices. Other research paradigms are equally important and generate other kinds of knowledge (Morgan, 1983). This paper describes...

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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...

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Characteristics of companies with a higher risk of financial statement fraud: A survey of the literature

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: E. du Toit --- Department of Financial Management,

Fraud and corruption in companies is a serious problem in this day and age. One only needs to think of Enron, Parmalat and Macmed. Companies are constantly identifying new and ingenious ways to defraud their customers, investors, the government and...

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An analysis of underpricing and aftermarket performance of initial public offerings on the Alternative Exchange (AltX)

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: C. Correia --- Department of Accounting, G. Holman --- Department of Accounting,

This paper reviews the international evidence of underpricing of Initial Public Offerings and analyses IPO underpricing by companies listing on the South African Alternative Exchange (AltX). Underpricing is indicated by measuring the percentage difference between the initial offer price and...

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Accounting academics’ multiple challenges: Issues-driven learning offers a way forward

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: J H Hesketh --- Management Studies Education Unit,

Accounting academics in South Africa are under pressure from their stakeholders, particularly the South African Institute of Chartered Accountants (SAICA) and the Department of Education (DoE), to make urgent changes. Challenges include the need for increased research output and for...

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A comment on research frameworks applied in accounting research

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: D Coetsee --- University of Johannesburg,

In the social sciences three different research frameworks are used: positivistic, interpretative and critical. These frameworks approach research from different premises, which collectively contribute to the pool of knowledge. Accounting institutions and their activities are fashioned by human interventions whose...

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A Note: The SAICA Part I Qualifying Examinations: Factors that may influence candidates’ success

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: E van Wyk --- Department of Accountancy,

The study investigates certain factors characterising successful and unsuccessful candidates in the 2009 and 2010 SAICA Part I Qualifying Examination (QE I) with the purpose of making recommendations to candidates, educators, training centres and to SAICA. The study also aims...

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A Note: Estimating the relationship between environmental performance and economic performance of South African mining companies

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: T F Prinsloo --- Faculty of Economic and Management Sciences, M Oberholzer --- Faculty of Economic and Management Sciences,

The purpose of the study is to determine the relationship between environmental performance and economic performance in the South African mining industry, where the economic performance consists of market-based and accounting-based estimates. In this regard, Spearman’s ranking-order correlation was applied...

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Sustainability in accounting education: An analysis of the teaching thereof at accredited South African universities

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: B Marx --- Department of Accountancy, A van der Watt --- Department of Accountancy,

Accountants and auditors are key role players in the financial world and society at large and as such can play a vital role in fostering awareness of sustainability and creating sustainable business practices. The issue of sustainability in accounting education...

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Exploring student perceptions and experiences of ICT-enhanced formative assessment in an undergraduate management accounting course

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: K. J. Barnard --- Department of Accounting, South Africa M. Mostert --- Centre for Higher Education, Research, Teaching and Learning, South Africa

The central role of assessment in driving student learning has been well argued in the literature. In particular, continuous formative assessment with timely feedback helps motivate students to work consistently, while the addition of just-in-time support may further motivate and...

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The supply and demand effect of block transactions on share prices

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Mark Atkins --- Graduate School of Business Management, Mike Ward --- Graduate School of Business Management,

The effect of supply and demand on the pricing of shares was investigated by analysing block transactions on the JSE. A sample of 291 block transactions was selected from the period 1 June 1993 to 1 June 1994 from the...

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On pricing kernels, information and risk

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Diane L. Wilcox --- School of Computational & Applied Mathematics, South Africa Tim J. Gebbie --- School of Computational & Applied Mathematics, South Africa

This paper compares out-of-sample, ex-ante risk and returns of arbitrage pricing theory (APT) risk-factor based, zero-cost portfolios with characteristic-based, zero-cost portfolios. In particular the Haugen and Baker characteristic-based model framework is used in a comparison with the capital asset pricing...

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Information content in the depth of futures markets

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: I-Chun Tsai --- Department of Finance, Taiwan

The paper uses open interest as the proxy variable of market depth to estimate its effects on volatility, return, volume and deviations of contract prices from the fundamental level. It adopts open interest from three types of investors, namely, dealers,...

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The market impact on shares entering or leaving JSE indices

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Craig Miller --- Gordon Institute of Business Science, South Africa Michael Ward --- Gordon Institute of Business Science, South Africa

A company's entry into (or exit from) a major share index provides a special opportunity to examine price discovery. In an efficient market, we expect the demand curve to remain horizontal and to be unaffected by external events that do...

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Fund manager characteristics and performance

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Yi Fang --- Center for Quantitative Economics, China Haiping Wang --- School of Administrative Studies, Canada

This study establishes a multitier framework to evaluate how fund manager characteristics systematically affect mutual fund performance. The framework includes three tiers of performance elements: comprehensive performance; return and risk; and timing skill and picking ability. Using performance decomposition, our...

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The relative tracking ability of South African exchange traded funds and index funds

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Barry Strydom --- School of Accounting, Economics and Finance, Pietermaritzburg Campus, South Africa Ailie Charteris --- School of Accounting, Economics and Finance, Pietermaritzburg Campus, South Africa Kerry McCullough --- School of Accounting, Economics and Finance, Pietermaritzburg Campus, South Africa

The Efficient Market Hypothesis holds that it is not possible to ‘beat the market’ and that a passive investment strategy is optimal. Traditionally investors have been able to do this by investing in index funds replicating an index, but the...

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Evaluating and predicting the failure probabilities of hedge funds

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Hee Soo Lee --- Discipline of Finance, School of Business, Korea Juan Yao --- Discipline of Finance, Australia

Hedge funds have the most sophisticated risk management practices; however, they also appear to have a short lifetime relative to other managed funds. In this study we investigate the failure probabilities of hedge funds – particularly the failures due to...

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Government control structure and allocation of credit: evidence from government-owned companies in China

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Kun Su --- School of Management, China Rui Wan --- School of Economics, China Taiwen Feng --- School of Management, China

This paper examines the effects of government control structure on the allocation of bank credit to government-owned firms in China. It particularly examines the extent to which differences in institutional environments across the diverse regions of China affect the nexus...

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Perceptions regarding the sources of financial information for South African institutional investors

Item type: Journal Article • Journal: De Ratione • Authors: D.K. Flynn --- University of Cape Town,

The sources of financial information of institutional investors used for the purpose of making decisions regarding the buying, holding and selling of ordinary shares is the focus of this article. The results of a survey of a sample of institutional...

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South African Statements of Accounting Practice as Part of a User-oriented Framework

Item type: Journal Article • Journal: De Ratione • Authors: J.A. Miller --- University of Natal-Durban,

In this third and final article on a suggested Hierarchy of Objectives for Financial Reporting the author deals with Statements of Accounting Practice as the operational level thereof, implementing concepts and principles towards achieving the objectives defined. As a consequence...

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A note on the estimation problems caused by thin-trading on the Johannesburg Stock Exchange

Item type: Journal Article • Journal: De Ratione • Authors: D. Bradfield --- University of Cape Town,

The estimation problems caused by the effects of thin-trading are highlighted. In particular thin-trading is found to be the major cause of bias associated with the estimation of beta coefficients in smaller markets like the JSE. The empical study conducted...

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A comparison of multivariate discriminant and logistic regression analysis in the prediction of corporate failure in South Africa

Item type: Journal Article • Journal: De Ratione • Authors: P W Court --- Rhodes University, S E Radloff --- Rhodes University,

The prediction of corporate failure, based on a specific model, is of vital importance to a large body of individuals. The two statistical methodologies which enjoy prominence in the literature when establishing these models are multivariate discriminant analysis and logistic...

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An investigation into the significance of certain firm-specific non-financial variables in a failure prediction model

Item type: Journal Article • Journal: De Ratione • Authors: P W Court --- Rhodes University,

Most failure prediction models contain only financial ratios. There are nevertheless a number of firm-specific, non-financial ratios which could point to failure. This article attempts to Investigate the impact of some of these variables in a failure prediction model, it...

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A Review of Systematic Risk Estimation on the JSE

Item type: Journal Article • Journal: De Ratione • Authors: D C Bowie --- University of Cape Town, D J Bradfield --- University of Cape Town,

This paper reviews some recent developments in the area of beta estimation on the JSE. it turns out that the dual phenomena of extreme thin trading and mild segmentation between the industrial and mining boards on the JSE impact on...

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A randomised clinical trial comparing the analgesic and anxiolytic efficacy and tolerability of Stilpane® and Tramacet® after third molar extraction

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: K Outhoff --- Department of Pharmacology, South Africa JM Dippenaar --- Department of Maxillo Facial Oral Surgery, Oral and Dental Hospital, South Africa M Nell --- Department of Pharmacology, South Africa M Royds --- CyteSpace, South Africa OBW Greeff --- Department of Pharmacology, South Africa

Background: Successful treatment of moderate to severe acute pain often necessitates several analgesics that target different sites of the nociceptive pathway. Fixed-dose combination analgesics facilitate a reduction in dose of individual components, increased compliance and strong-opioid sparing. The aim of...

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Hospitableness: the new service metaphor? Developing an instrument for measuring hosting

Item type: Journal Article • Journal: • Authors: Matthew Blain --- Compass Group UK & Ireland, Compass House, Chertsey, Surrey, United Kingdom Conrad Lashley --- School of International Hospitality Management, Stenden University of Applied Sciences, Leeuwarden, The Netherlands

Over the last couple of decades the word hospitality has emerged from the shadow of being used to describe a cluster of commercial activities providing accommodation, food and drink experiences to guests for a fee. Hospitality describes a ubiquitous aspect of human...

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Connecting entrepreneurship and education

Item type: Journal Article • Journal: • Authors: Sjoerd A. Gehrels --- Stenden Academy of International Hospitality Research, Leeuwarden, The Netherlands

The aim of this research is to explore the contextual characteristics of a particular group of Dutch restaurant owners, the successful culinary entrepreneurs (SCEs), to examine how these contextual characteristics might be used in a hospitality education. This very small segment of...

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The place branding of Qatar

Item type: Journal Article • Journal: • Authors: Maaike de Jong --- European Tourism Futures Institute, Stenden University, the Netherlands

Destination branding has become popular. Countries brand themselves to draw visitors and competent expatriates and to create economic diversification. The brand emphasises the uniqueness of the place; it frames the culture and sells its way of life. In the perspective...

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Grazing capacity, milk production and milk composition of kikuyu over-sown with annual or perennial ryegrass

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Janke van der Colf --- Western Cape Department of Agriculture, South Africa Philip R Botha --- Western Cape Department of Agriculture, South Africa Robin Meeske --- Western Cape Department of Agriculture, South Africa Wayne F Truter --- Department of Plant Production and Soil Science, South Africa

Kikuyu (Pennisetum clandestinum) is a highly productive pasture species that supports high stocking rates and milk production per hectare, but production per cow is low due to low nutritive value. The aim of this study was to determine the grazing...

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Forage yield and quality response of annual ryegrass (Lolium multiflorum) to different water and nitrogen levels

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Amanuel B Abraha --- Department of Plant Production and Soil Science, South Africa Wayne F Truter --- Department of Plant Production and Soil Science, South Africa John G Annandale --- Department of Plant Production and Soil Science, South Africa Melake K Fessehazion --- Department of Plant Production and Soil Science, South Africa

Water and nitrogen shortages in annual ryegrass (Lolium multiflorum) production can be improved by using proper irrigation and nitrogen scheduling methods. The aim of this research was to analyse the effect of water and nitrogen application on dry matter production...

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Health-related factors associated with intimate partner violence in women attending a primary care clinic in south-western Nigeria

Item type: Journal Article • Journal: South African Family Practice • Authors: AA Silva --- Family Medicine Department, Nigeria A Irabor --- Family Medicine Department, Nigeria OO Olowookere --- Family Medicine Department, Nigeria E Owoaje --- Department of Community Medicine, College of Medicine, Nigeria LA Adebusoye --- Family Medicine Department, Nigeria

Background: Intimate partner violence (IPV) relates to poor physical and mental health in women. Women who have experienced it access healthcare facilities more frequently with symptoms that are often unrelated to violence. The objective of the study was to determine...

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Household Enterprise in Base-of-the-Pyramid Markets: the Influence of Institutions and Family Embeddedness

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Justin W. Webb --- University of North Carolina at Charlotte, USA Christopher G. Pryor --- High Point University, USA Franz W. Kellermanns --- University of North Carolina at Charlotte, USA

Nearly half of the population in Africa lives on less than $1.25 per day in what scholars refer to as base-of-the-pyramid (BOP) markets. More broadly, BOP markets account for two billion of the world's population living in extreme poverty. Household...

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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 Africa

Background: 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...

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Diabetic nephropathy in a tertiary care clinic in South Africa: a cross-sectional study

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: P Ngassa Piotie --- MD, DTM&H, DipPHM, MPH, Student, School of Health Systems and Public Health, Faculty of Health Sciences, DG Van Zyl --- FCP(SA), MMed(Int), MSc(ClinEpi), PhD, Senior Lecturer, Department of Internal Medicine, P Rheeder --- FCP(SA), MMed(Int), MSc(ClinEpi), PhD, Senior Lecturer, Department of Internal Medicine,

Objective: The aim of this study was to determine the prevalence of micro- or macroalbuminuria in type 1 and type 2 diabetic patients, and to examine the relationship with the diabetes control parameters such as haemoglobin (Hb)A1c, blood pressure (BP)...

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Performance and design optimisation of an apparatus for distilling palm wine (Elaeis guineensis) by controlling thermal operations

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Clément Ahouannou --- Laboratory of Applied Mechanics and Energy, Polytechnic School of Abomey-Calavi, Benin Fidèle Tchobo --- Laboratory Study and Research in Applied Chemistry, Polytechnic School of Abomey-Calavi, Benin Emile A. Sanya --- Laboratory of Applied Mechanics and Energy, Polytechnic School of Abomey-Calavi, Benin Christa Lokossou --- Laboratory Study and Research in Applied Chemistry, Polytechnic School of Abomey-Calavi, Benin Mohamed Soumanou --- Laboratory Study and Research in Applied Chemistry, Polytechnic School of Abomey-Calavi, Benin

Mastery of thermal control in the craft distillation processing operations of fermented wine from Elaeis guineensis is needed to improve and enhance the resulting Beninese alcoholic drink, sodabi. In this study, craft distillation of palm-wines from three municipalities of southern...

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Hooking mortality of scalloped hammerhead Sphyrna lewini and great hammerhead Sphyrna mokarran sharks caught on bottom longlines

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SJB Gulak --- Riverside Technology Inc., National Marine Fisheries Service, Panama City Laboratory, USA AJ de Ron Santiago --- Riverside Technology Inc., National Marine Fisheries Service, Panama City Laboratory, USA JK Carlson --- National Marine Fisheries Service, Panama City Laboratory, USA

The scalloped hammerhead Sphyrna lewini and the great hammerhead S. mokarran are typically caught as bycatch in a variety of fisheries and are listed as globally Endangered by the International Union for the Conservation of Nature. Due to very high...

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Seasonality, behaviour and philopatry of spotted ragged‑tooth sharks Carcharias taurus in Eastern Cape nursery areas, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MJ Smale --- Port Elizabeth Museum at Bayworld, South Africa ML Dicken --- Port Elizabeth Museum at Bayworld, South Africa AJ Booth --- Department of Ichthyology and Fisheries Science, South Africa

Spotted ragged‑tooth sharks Carcharias taurus occur along the southern and eastern coasts of South Africa. We report on movements of juveniles and adults within a known nursery area on the Eastern Cape coast using acoustic telemetry. The focus area of...

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Seasonal variability of bull and tiger shark presence on the west coast of Reunion Island, western Indian Ocean

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Blaison --- IRD La Réunion, UMR MARBEC (IRD/IFREMER/UM/CNRS), France S Jaquemet --- Université de La Réunion, France D Guyomard --- Comité Régional des Pêches Maritimes et des Elevages Marins de La Réunion (CRPMEM), France G Vangrevelynghe --- Squal'Idées, Stella, France T Gazzo --- WEST, Saint Gilles, France G Cliff --- KwaZulu-Natal Sharks Board, South Africa P Cotel --- IRD La Réunion, UMR MARBEC (IRD/IFREMER/UM/CNRS), France M Soria --- IRD La Réunion, UMR MARBEC (IRD/IFREMER/UM/CNRS), France

A fisheries‑independent survey using longlines and drumlines, and an acoustic telemetry study, revealed that bull sharks Carcharhinus leucas and tiger sharks Galeocerdo cuvier occur throughout the year off the west coast of Reunion Island. The research, which commenced in 2011,...

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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 Africa

Small 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...

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Attracting female sex workers to HIV testing and counselling in Ethiopia: a qualitative study with sex workers in Addis Ababa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Wole Ameyan --- Liverpool School of Tropical Medicine, UK Caroline Jeffery --- Liverpool School of Tropical Medicine, UK Kassahun Negash --- Amref Health Africa, Ethiopia Etsegenet Biruk --- Amref Health Africa, Ethiopia Miriam Taegtmeyer --- Liverpool School of Tropical Medicine, UK

Despite growing efforts to increase HIV testing and counselling (HTC) services for most at risk populations in Ethiopia, the use of these services by female sex workers (FSWs) remains low. With rising numbers of FSWs in Addis Ketema and concerns...

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On the road again: concurrency and condom use among Uganda truck drivers

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Elizabeth C Costenbader --- FHI 360 Headquarters, Kathryn Lancaster --- FHI 360 Headquarters, Leonard Bufumbo --- FHI 360 Uganda Country Office, Uganda Angela Akol --- FHI 360 Uganda Country Office, Uganda Greg Guest --- FHI 360 Headquarters,

Long-distance truck drivers have been shown to be a critical population in the spread of HIV in Africa. In 2009, surveys with 385 Ugandan long-distance truck drivers measured concurrency point prevalence with two methods; it ranged from 37.4% (calendar-method) to...

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Patient satisfaction during and following procedural sedation for ambulatory surgery

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Cherese Lapere --- University of the Western Cape, South Africa James Roelofse --- University of the Western Cape, South Africa Yusof Omar --- University of the Western Cape, South Africa Andre du Plessis --- Eastman Dental Institute, UK Andre von Backstrom --- Sedation Solutions, UK Will Botha --- Sedation Solutions, UK Craig Cook --- Sedation Solutions, UK Gideon Bosch --- Sedation Solutions, UK

Background: Patient satisfaction is multidimensional. The clinician’s perspective of a good outcome and the patient’s experience of a satisfactory service are often two different end-points. The primary aim of our study was to assess the perioperative experience of patients undergoing...

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Timeliness of Financial Reporting in Nigeria

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: U Efobi --- School of Business, P Okougbo --- School of Business,

This study explored the factors that can influence the timeliness of financial reporting in Nigeria using a sample of 33 financial institutions (2005–2008). The Generalized Least Square (GLS) regression method was used for the estimation and the results reveal that...

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Responses of the African catfish Clarias gariepinus to long-term exposure to glyphosate- and paraquat-based herbicides

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OI Ayanda --- Department of Biological Sciences, Nigeria SJ Oniye --- Department of Biological Sciences, Nigeria JA Auta --- Department of Biological Sciences, Nigeria VO Ajibola --- Department of Chemistry, Nigeria OA Bello --- Department of Biological Sciences, Nigeria

Direct and indirect contamination of the aquatic environment by pesticides results in a decrease in fish productivity and may elevate concentrations of undesirable chemicals in edible fish tissues. The effects of long-term exposure of Clarias gariepinus juveniles to sublethal concentrations...

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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 Africa

The 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...

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Succession to traditional Venda leadership in a changing constitutional environment in South Africa

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: FC de Beer --- Department of Anthropology and Archaeology,

The conflict and ambivalence in the legislative transformation in South Africa, recognising on the one hand the institution of traditional leadership and its concomitant customs and values, and on the other hand enforcing the fundamental value of gender equality entrenched...

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“He who pays the piper…”, the anomaly of custom and constitution local government and traditional leadership

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael de Jongh --- Department of Anthropology and Archaeology, South Africa

In December 2003 the Traditional Leadership and Governance Framework Act 2003 (No 41 of 2003) was eventually promulgated. This was the culmination of an extended process of submissions Consultation releasing of a draft White Paper workshops activities of a White...

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The roots and complexity of the land issue and of land claims in South Africa

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: FC de Beer --- Department of Anthropology and Archaeology,

Land reform and land restitution are current and emotional issues in South Africa and a scrutiny of the antecedent events and processes is crucial for an understanding of the complexities involved. Comprehending the land issue requires a reflection on the...

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Community, family and intimate relationships: an exploration of domestic violence in Griquatown, South Africa

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Linda Waldman --- Institute of Development Studies, University of Sussex, UK

This paper explores domestic violence in the rural location of Griquatown, South Africa. Although academics have long recognised that structural and cultural factors influence people's experience of domestic violence, not much has been written about the manner in which this...

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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,...

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Rights, the public and the South African Constitution: civil society and the performance of rights

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Naudé Malan --- Department of Anthropology and Development Studies,

The concept of rights holds considerable dominion over the discourses of the state and the public. This situation has left us unable to comprehend, police, and support forms of ‘non-state public action’ as relevant to rights. This article discusses the...

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Glaring invisibility: dressing the body of the female cleaner

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Maheshvari Naidu --- School of Anthropology, Gender and Historical Studies, University of KwaZulu Natal,

The paper explores how the uniform of a group of female cleaners appears to be more than an abstract object framed by the practical exegetics of work. The uniform is seen as acting as a material exercise of discretionary and...

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‘We can be united, but we are different’: discourses of difference in postcolonial Namibia

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael Akuupa --- Dept of Anthropology and Sociology,

Social scientists who have written about the dynamics of festival rituals have analysed such practices variously as celebrations of commonality, as the enhancement of social cohesion, or as expressions of nostalgia. Festivals have also been studied as spaces where information...

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‘She's just like my mother’: measuring motherhood in the context of the HIV epidemic in South Africa

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Naomi Marshak --- Department of Social Anthropology,

This paper emerges from an ethnographic study conducted in Kwazulu-Natal in 2010 that explored the practices of a humanitarian intervention providing psychosocial support for and strengthening of the bonds between orphans and children made vulnerable by HIV and their non-biological...

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‘Social pain and social death’: poor white stigma in post-apartheid South Africa, a case of West Bank in East London

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Octavia Sibanda --- Fort Hare Institute of Social and Economic Research, University of Fort Hare,

This article looks at poor white stigma in post-apartheid South Africa. Drawing on my ethnographic engagement with my informants, I developed this article as a part of my broader argument that explores the complex nature of white poverty in South...

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Beyond ethical imperatives in South African anthropology: morally repugnant and unlikeable subjects

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Ilana van Wyk --- Institute for Humanities in Africa (HUMA), South Africa

In this article, I argue that anthropologists' dislike of their subjects in the field poses both epistemological and ethical questions that go beyond concerns about harming or exploiting those we study, about maintaining human relationships, or about the self-reflexivity and...

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Institutions and social change: a case study of the South African National AIDS Council

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Theodore Powers --- The Human Economy Project, Faculty of Humanities, South Africa

Institutions play an important role in the success or failure of social models, as they promote or limit particular political and economic activities. Central to this point is the understanding that institutions and traditions are in a constant state of...

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‘Distraction from the real difficulties’: ethical deliberations in international health research

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Helen Macdonald --- Social Anthropology, University of Cape Town, Andrew D. Spiegel --- Social Anthropology, University of Cape Town,

Increasingly, North based graduate students are seeking South based institutional homes whilst undertaking ethnographic research. Looking from a place in the global South, the article considers how requests to host such students influence, and are influenced by, both local and...

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Determining optimal primary sawing and ripping machine settings in the wood manufacturing chain

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Berndt G Lindner --- Department of Industrial Engineering, South Africa PJ Vlok --- Department of Industrial Engineering, South Africa C Brand Wessels --- Department of Forest and Wood Science, South Africa

for wood manufacturers around the world, the single biggest cost factor is known to be its raw material. Maximum volume recovery of this raw material is, therefore, of key importance for the industry. The wood products industry consists of several...

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The variation of microfibril angle in South African grown Pinus patula and its influence on the stiffness of structural lumber

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: C Brand Wessels --- Department of Forest and Wood Science, South Africa Francois S Malan --- Postgraduate Forest Programme, South Africa Martin Kidd --- Centre for Statistical Consultation, South Africa Tim Rypstra --- Department of Forest and Wood Science, South Africa

Reduction in the rotation ages of softwood saw-log plantations in South Africa is causing increased proportions of low stiffness sawn lumber at final harvest. It has been shown for some species that the microfibril angle (MFA) of the S2 layer...

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HIV/AIDS knowledge and stigma among women of reproductive age in Ethiopia

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Eshetu Gurmu --- Centre for Population Studies, Ethiopia Dula Etana --- Centre for Population Studies, Ethiopia

HIV/AIDS stigma is one of the major public health challenges in Ethiopia. This study examined knowledge about HIV/AIDS and factors behind stigmatisation towards people living with the virus based on demographic and health survey data collected in 2011 from women...

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Temporal distribution of baseline characteristics and association with early mortality among HIV-positive patients at University College Hospital, Ibadan, Nigeria

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joshua.O. Akinyemi --- Department of Epidemiology and Medical Statistics, College of Medicine, Nigeria Olubukola A. Adesina --- Department of Obstetrics and Gynaecology, College of Medicine, Nigeria Modupe.O. Kuti --- Department of Chemical Pathology, College of Medicine, Nigeria Babatunde.O. Ogunbosi --- Department of Paediatrics, College of Medicine, Nigeria Achiaka E. Irabor --- Department of Family Medicine, University College Hospital, Ibadan, Nigeria Georgina N. Odaibo --- Department of Virology, College of Medicine, Nigeria David O. Olaleye --- Department of Virology, College of Medicine, Nigeria Isaac F. Adewole --- Department of Obstetrics and Gynaecology, College of Medicine, Nigeria

The first six months of HIV care and treatment are very important for long-term outcome. Early mortality (within 6 months of care initiation) undermines care and treatment goals. This study assessed the temporal distribution in baseline characteristics and early mortality...

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Wisdom and counselling: A note on advising people with HIV/AIDS in Ghana

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sjaak van der Geest --- Sociology-Anthropology Department, The Netherlands

This article raises the question of whether the practice of HIV/AIDS counselling in Ghana can be linked to the wisdom that older people are said to have and use when they give advice to younger family members. Older people believe...

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Reckoning HIV/AIDS care: A longitudinal study of community home-based caregivers and clients in Swaziland

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Robin Root --- Department of Sociology & Anthropology, USA Arnau Van Wyngaard --- Department of Science of Religion and Missiology, South Africa Alan Whiteside --- CIGI Chair in Global Health Policy, Canada

The article is a descriptive case study of a community home-based care (CHBC) organisation in Swaziland that depicts the convergence of CHBC expansion with substantially improved health outcomes. Comprised of 993 care supporters who tend to 3 839 clients in...

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A Review of “Place Images and Nation Branding in the African Context: Challenges, Opportunities, and Questions for Policy and Research”, (Nicolas Papadopoulos and Leila Hamzaoui-Essoussi)

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Eugene D. Jaffe --- Ruppin Academic Center, Israel

This review of Nicolas Papadopoulos and Leila Hamzaoui-Essoussi's paper “Place Images and Nation Branding in the African Context: Challenges, Opportunities, and Questions for Policy and Research” touches upon the authors’ objectives and the extent to which they have been carried...

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Movement behaviour of largemouth bass Micropterus salmoides in a South African impoundment

Item type: Journal Article • Journal: African Zoology • Authors: Dylan H Howell --- Department of Ichthyology and Fisheries Science, South Africa Paul D Cowley --- Department of Ichthyology and Fisheries Science, South Africa Amber-Robyn Childs --- Department of Ichthyology and Fisheries Science, South Africa Olaf LF Weyl --- Department of Ichthyology and Fisheries Science, South Africa

The objectives of this study were to describe movements and area use patterns of largemouth bass Micropterus salmoides in relation to abiotic factors (water temperature, river inflow and water level). The study was conducted in the Kubusi arm of Wriggleswade...

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Kelp gulls prey on the eyes of juvenile Cape fur seals in Namibia

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AJ Gallagher --- Leonard and Jayne Abess Center for Ecosystem Science and Policy, USA ER Staaterman --- Rosenstiel School of Marine and Atmospheric Sciences, USA N Dreyer --- Sandwich Harbour 4×4, Namibia

The kelp gull Larus dominicanus is an abundant and highly successful avian predator and scavenger that breeds along the coastline in the Southern Hemisphere, ranging from Antarctica to the tropics. On account of its dietary breadth, wide-ranging foraging strategies, and...

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Gastric lavage as a non-lethal method for stingray (Myliobatiformes) diet sampling

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Elston --- South African Institute for Aquatic Biodiversity, South Africa RG von Brandis --- Save Our Seas Foundation, Seychelles PD Cowley --- South African Institute for Aquatic Biodiversity, South Africa

Understanding the trophic interactions of ecologically important mesopredators such as Myliobatiformes (stingrays) is vital, but, given their susceptibility to overexploitation, the collection of stomach contents for dietary analysis necessitates the use of non-lethal methods. We provide a detailed method of...

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Bald kelp: natural and harvesting-induced frond loss in the South African kelp Ecklonia maxima

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Elston --- Department of Biological Sciences, South Africa RJ Anderson --- Department of Biological Sciences, South Africa LM Price --- Department of Biological Sciences, South Africa

Ecklonia maxima dominates kelp beds on the west coast of southern Africa, and is commercially and ecologically valuable. Some plants lose all their secondary blades (fronds), leaving only the gas-filled bulb and short primary blade at the top of the...

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Perceptions of the utility of personality assessment for personnel selection in the South African context: An exploratory study

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sapna Fakir --- Department of Psychology, South Africa Sumaya Laher --- Department of Psychology, South Africa

This study explored South African industrial psychologists’ perceptions of the utility of personality assessment for personnel selection. Eleven industrial psychologists (2 male, 9 female) from the Johannesburg area, South Africa were the participants. They participated in semi-structured interviews exploring their...

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Gestational trophoblastic disease: An overview

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: L C Snyman --- Gynaecologic Oncology Unit, Department of Obstetrics and Gynaecology,

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Case report of an intra-uterine pregnancy complicated by an ectopic invasive molar pregnancy

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: L C Snyman --- Gynaecological Oncology Unit, Department Obstetrics and Gynaecology, South Africa

We report on a rare case of a woman presenting with an early intra-uterine pregnancy, lower abdominal pain and a right-sided pelvic mass. She developed an acute abdomen and an emergency laparotomy was performed. Histology revealed an ectopic invasive molar...

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Pathology of gestational trophoblastic neoplasia: a review with recent insights

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: T Slavik --- Anatomical Pathologist, Ampath Pathology Laboratories, South Africa

Gestational trophoblastic neoplasia (GTN) refers to a unique and heterogeneous group of conditions demonstrating differentiation towards various components of gestational trophoblast. Variants of hydatidiform mole (HM) are considered benign, whilst choriocarcinoma (CC), placental site trophoblastic tumour (PSTT) and the more...

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A metastatic unclassified trophoblastic tumour with spontaneous bilateral pneumothoraces

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: P Barnardt --- Department of Medical Imaging and Clinical Oncology, L Fourie --- Department of Medical Imaging and Clinical Oncology,

Gestational trophoblastic disease (GTD) is a spectrum of diseases associated with pregnancy. Epithelioid trophoblastic tumour (ETT) is a rare neoplastic proliferation of the intermediate trophoblast that can be distinguished from choriocarcinoma. A 35-year-old female presented with persistent vaginal bleeding, raised...

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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,

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Colonic metastasis from carcinoma cervix: an unusual cause of intestinal obstruction

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: S Prem --- Director and Head of Department Regional Cancer Centre, Department of Radiotherapy, India S Gangothri --- Director and Head of Department Regional Cancer Centre, Department of Radiotherapy, India V Parthasarathy --- Director and Head of Department Regional Cancer Centre, Department of Radiotherapy, India K S Reddy --- Director and Head of Department Regional Cancer Centre, Department of Radiotherapy, India D Basu --- Department of Pathology, India

Intestinal obstruction is a rare complication after pelvic radiotherapy for carcinoma cervix. Metastasis from carcinoma of the uterine cervix to the gastrointestinal tract is uncommon. We report a case of a 36-year-old woman who was treated by concurrent chemo-radiation for...

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Translation and validation of the EORTC QLQ-CX24 questionnaire into the indigenous African languages of isiXhosa and Afrikaans

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: G C Du Toit --- Unit of Gynaecological Oncology, Tygerberg Hospital, University of Stellenbosch, D G Nel --- Centre for Statistical Consultation, University of Stellenbosch,

Objectives: Quality of life (QOL) assessment plays an important role in oncological clinical practice and research settings when evaluating treatment outcome. Cervical cancer remains a prevalent disease in South African women. The current study translated the European Organisation for Research...

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Chronic inflammatory demyelinating polyneuropathy, diagnosed as a paraneoplastic manifestation of small cell neuroendocrine carcinoma of the cervix

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: B Chakrabarti --- Department of Radiotherapy, India S Roy --- Department of Radiotherapy, India C Mallik --- Department of Radiotherapy, India K S Bhattacharya --- Department of Radiotherapy, India S Mukherjee --- Department of Radiotherapy, India

Paraneoplastic syndrome frequently presents before cancer is diagnosed and can be associated with neoplastic disease that is not yet radiographically detectable. We report on the case of a 35-year-old woman who presented at the neurology department with complaints of insidious...

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Human papillomavirus DNA testing on self-collected vaginal tampon samples as a cervical cancer screening test in a Gauteng population

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: E F Mnisi --- Gynaecological Oncology Unit, Department of Obstetrics and Gynaecology, G Dreyer --- Gynaecological Oncology Unit, Department of Obstetrics and Gynaecology, K L Richter --- Department of Medical Virology, University of Pretoria; Tshwane Academic Division, A Horton --- Department of Anatomical Pathology, University of Pretoria; Tshwane Academic Division, L C Snyman --- Gynaecological Oncology Unit, Department of Obstetrics and Gynaecology,

Background: There is a need to simplify cervical cancer screening to reach more women. Tampon-collected specimens can be tested using molecular methods, but this type of self-screening has not been properly evaluated as a screening method in South Africa before...

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A case study on Rosai-Dorfman disease occurring within the pelvis

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: D J Babu --- Department of Gynaecology and Surgical Oncology, A Maheshwari --- Department of Gynaecology and Surgical Oncology, M Sengar --- Department of Hematology and Medical Oncology, S Menon --- Department of Pathology, Tata Cancer Hospital, India

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Epithelioid trophoblastic tumour: a report of two cases

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: MMA Elhassan --- Radiation Oncology Department, Sudan H-T Wu --- Department of Anatomical Pathology, AL Van Wijk --- Department of Radiation Oncology,

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Detection and management of acute HIV infections in patients with sexually transmitted infections: a window of opportunity for HIV prevention within South Africa?

Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: David Lewis --- Centre for HIV and STIs, National Institute for Communicable Diseases, National Health Laboratory Service,

Patients with acute human immunodefciency virus (HIV) infection are highly infectious to their uninfected sexual partners. The level of this infectiousness is thought to be as much as 26 times greater than that observed during chronic HIV infection, and may...

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Epidemiology of an outbreak of cholera in a south-west state of Nigeria

Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Akinola Fatiregun --- Department of Epidemiology, Nigeria Samuel Olowookere --- Department of Community Health, Elvis Isere --- Department of Epidemiology, Nigeri Adejumoke Ayede --- Department of Paediatrics, Nigeria

On 19 August 2011, 11 suspected cholera cases were reported by three private hospitals to the Disease Surveillance Unit of Ede District in Osun State, Nigeria. Diagnoses were confrmed using the cholera rapid diagnostic test kit. A feld investigation to...

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Re-evaluating the role of piperacillin-tazobactam in the treatment of hospital-acquired infections

Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: W. Lowman --- Department of Clinical Microbiology and Infectious Diseases,

The objectives were to determine the minimum inhibitory concentrations (MICs) of piperacillin-tazobactam against blood culture isolates over a two-year period, and to compare the MICs with isolates from the same site upon the South African launch of piperacillin-tazobactam. The intention...

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Contraceptive use and prevalence of sexually transmitted infections among women seeking termination of pregnancy at a district hospital in KwaZulu-Natal

Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Samuel Muruya --- Department of Obstetrics and Gynecology, Hannah Sebitloane --- Department of Obstetrics and Gynecology,

Termination of pregnancy (TOP) is one of the components of female reproductive health and rights that are freely available in South Africa within the public health system, and yet unwanted pregnancies still remain a challenge. The objectives of this study...

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A Double Load to Carry: Parasites and Pregnancy

Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: J M Tsoka-Gwegweni --- Department of Public Health Medicine, School of Nursing and Public Health College of Health Sciences, N P Ntombela --- Department of Public Health Medicine, School of Nursing and Public Health College of Health Sciences,

Pregnancy drains the body physically, physiologically and immunologically. This burden is aggravated when combined with parasite infection. Intestinal parasitic infections in pregnancy have been associated with serious adverse outcomes, both for the mother and the unborn baby. In this article,...

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Measures practised by healthcare workers to prevent tuberculosis transmission at rural hospitals in vhembe district

Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: T G Tshitangano --- Department of Public Health,

The risk of becoming infected with tuberculosis in healthcare settings is increasing daily. Of every 100 hospitalised patients at any given time, seven in developed, and 10 in developing, countries, will acquire at least one infection in a healthcare setting,...

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The routine paediatric human immunodeficiency virus visit as an intervention opportunity for failed maternal care, and use of point-of-care CD4 testing as an adjunct in determining antiretroviral therapy eligibility

Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: S C Picken --- HOPE Cape Town Association and Trust, Faculty of Medicine and Health Sciences, Stellenbosch University, S Williams --- HOPE Cape Town Association and Trust, Faculty of Medicine and Health Sciences, Stellenbosch University, J Harvey --- Centre for Statistical Consultation, Stellenbosch University, M M Esser --- Head of Immunology Unit, NHLS Tygerberg Division of Medical Microbiology, Department of Pathology, Stellenbosch University,

South African women and children remain at the centre of the human immunodeficiency virus (HIV) pandemic, and maternal well-being plays a critical role in child health. In this study, we evaluated the impact of the paediatric visit on the determination...

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Immune reconstitution in human immunodefciency virus-positive patients on highly active antiretroviral therapy at an urban public sector district hospital

Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: O S Jimoh --- Department of Family Medicine, Nelson R Mandela School of Medicine, M. Naidoo --- Department of Family Medicine, Nelson R Mandela School of Medicine,

Immune reconstitution is measured by circulating CD4 T cells that follows a biphasic pattern. Not everyone who is on highly active antiretroviral therapy (HAART) will attain immune reconstitution at the same rate, or to the same extent. This study aimed...

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Experiences in the implementation of provider-initiated counselling and testing and linkage to HIV services at urban public sector health facilities in KwaZulu-Natal

Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Rogerio Phili --- Department of Public Health Medicine, South Africa Quarraisha Abdool Karim --- Centre for the AIDS Programme of Research in South Africa, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, South Africa Boikhutso Tlou --- Department of Public Health Medicine, South Africa

Background: A provider-initiated counselling and testing (PICT) strategy replaced the voluntary counselling and testing (VCT) strategy with respect to the provision of human immunodeficiency virus (HIV) counselling and testing (HCT) in KwaZulu-Natal province with the aim of increasing the uptake...

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NDM-1, novel TEM-205, novel TEM-213 and other extended-spectrum β-lactamases co-expressed in isolates from cystic fibrosis patients from South Africa

Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Nonhlanhla Mhlongo --- Antimicrobial Research Unit, South Africa Sabiha Essack --- Antimicrobial Research Unit, South Africa Usha Govinden --- Antimicrobial Research Unit, South Africa

Background: β-lactamase-mediated resistance was investigated in isolates from cystic fibrosis (CF) patients attending clinics in the public and private health sectors in Durban, South Africa.

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Exploring communication channels used by festival visitors: Traditional channels versus the Internet

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: A. van Lille --- Business Management, South Africa J.W. Strydom --- Business Management, South Africa

Various communication channels are available to festival managers to present messages to specific target markets. Today's festival visitors live in the Information Age, and have become mostly unresponsive to traditional communication methods. Therefore this research investigated the communication channels used...

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Entrepreneurial innovations for agricultural mechanisation in Zimbabwe: Evidence from an informal metal industry survey

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kingstone Mujeyi --- Department of Agricultural Economics, Zimbabwe Jackqueline Mutambara --- Department of Agricultural Economics and Extension, Zimbabwe Shephard Siziba --- Department of Agricultural Economics and Extension, Zimbabwe Wilbert Z. Sadomba --- Centre for Applied Social Sciences, Zimbabwe Tarisai K. Manyati --- Department of Sociology, Zimbabwe

This study uses data collected from 602 randomly selected informal metal industry entrepreneurs across 15 cluster-sampled districts in eight of Zimbabwe's 10 provinces to analyse factors that influence technological innovations development by informal agribusiness entrepreneurs. It applies a binary logistic...

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Skull morphometrics of male Subantarctic fur seals (Arctocephalus tropicalis) from Marion and Gough Islands

Item type: Journal Article • Journal: African Zoology • Authors: Graham I.H. Kerley --- Zoology Department, South Africa Bryce R. Allen --- Zoology Department, South Africa Marthán N. Bester --- Department of Zoology and Entomology, South Africa

Skull morphometrics of two populations of Subantarctic fur seal (Arctocephalus tropicalis) were compared in order to identify possible geographic variation as an indicator of gene flow between the populations, as well as a potential tool to identify the source of...

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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 Africa

Conservation 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...

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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, Botswana

A 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...

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Uptake and distribution of copper in the freshwater crab Potamonautes perlatus (Crustacea) in the Eerste River, South Africa

Item type: Journal Article • Journal: African Zoology • Authors: R.G. Snyman --- Department of Zoology, South Africa A.J. Reinecke [AN0001] J.A.J. Nel --- Department of Zoology, South Africa

The uptake and distribution of copper in the freshwater crab Potamonautes perlatus in the Eerste River, South Africa, were studied seasonally by comparing copper concentrations in crabs, water and sediment at two localities, one upstream and one downstream from the...

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Group displays in pale-winged starlings

Item type: Journal Article • Journal: African Zoology • Authors: P.E. Hulley --- Department of Zoology and Entomology, South Africa A.J.F.K. Craig --- Department of Zoology and Entomology, South Africa G.H. Walter --- Department of Entomology, Australia

Cliff-nesting pale-winged starlings (Onychognathus nabouroup) gather on the cliff tops to perform Group Displays which include both aggressive and courtship elements: Hopping, Wing Stretching, Wing Drooping, Wing Flicking, Staring, Head Forward Threat and Butterfly Fluttering. These displays occur throughout the...

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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 Africa

Testes 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...

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Abundance and home ranges of feral cats in an urban conservancy where there is supplemental feeding: a case study from South Africa

Item type: Journal Article • Journal: African Zoology • Authors: Jaclyn Tennent --- School of Biological and Conservation Sciences, South Africa Colleen T. Downs --- School of Biological and Conservation Sciences, South Africa

There is much debate surrounding the impact of feral cats (Felis catus) on wildlife. Conservancies areusually areas where indigenous flora and fauna are protected and aliens excluded or managed. The University of KwaZulu-Natal’s Howard College campus (HCC) is an urban...

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Digestibility of nutrients and aspects of the digestive physiology of the greater cane rat, journalThryonomys swinderianus journalin two seasons

Item type: Journal Article • Journal: African Zoology • Authors: A. Van Zyl --- Department Zoology and Entomology, South Africa J.H. Delport --- Department Zoology and Entomology, South Africa

The greater cane rat, Thryonomys swinderianus, utilizes high fibrous plant material and is an important meat source in West Africa. An insight in its digestive physiology will enhance our understanding of its feeding habits. Digestibility coefficients of the food were...

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Towards a standardized and optimized protocol for rapid biodiversity assessments: spider species richness and assemblage composition in two savanna vegetation types

Item type: Journal Article • Journal: African Zoology • Authors: M.I. Muelelwa --- Centre for Invasion Biology and Department of Zoology, South Africa S.H. Foord --- Centre for Invasion Biology and Department of Zoology, South Africa A.S. Dippenaar-Schoeman --- ARC Plant Protection Research Institute, South Africa E.M. Stam --- National Zoological Gardens of South Africa, South Africa

A semi-quantitative inventory of spider diversity was done in the Blouberg Nature Reserve (BNR) and Western Soutpansberg Conservancy (WSC) situated in the Savanna Biome of the Limpopo Province, South Africa. Two hundred and ninety-six samples of one person-hour work each,...

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Brand performance of Chinese domestic vs. international hotels: Perceptions of operators as well as domestic and foreign guests

Item type: Journal Article • Journal: • Authors: Cathy H.C. Hsu --- School of Hotel and Tourism Management, The Hong Kong Polytechnic University, Kowloon, Hong Kong

The significant differences in financial performance between internationally branded hotels and domestically branded hotels in China inspired this study. As part of the research, we surveyed hotel operators and guests on their perception of brand performance of the hotel they managed and...

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Burnout among anaesthetists in South Africa

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Nicolaas van der Walt --- Faculty of Health Sciences, Department of Anaesthesiology, School of Clinical Medicine, South Africa Juan Scribante --- Faculty of Health Sciences, Department of Anaesthesiology, School of Clinical Medicine, South Africa Helen Perrie --- Faculty of Health Sciences, Department of Anaesthesiology, School of Clinical Medicine, South Africa

Background: Studies have been done to determine the level of burnout in anaesthesiology internationally, but not in South Africa.

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Integrated harvesting for conventional log and energy wood assortments: a case study in a pine plantation in Western Australia

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Mohammad R Ghaffariyan --- Australian Forest Operations Research Alliance (AFORA), University of the Sunshine Coast, Australia Raffaele Spinelli --- CNR-IVALSA, Italy Natascia Magagnotti --- CNR-IVALSA, Italy Mark Brown --- Australian Forest Operations Research Alliance (AFORA), University of the Sunshine Coast, Australia

Biomass or energy wood harvesting can be integrated with conventional log harvesting (saw log or pulpwood production) to allow more cost-effective energy wood supply. The efficiency of an integrated energy wood harvesting system was evaluated and compared with conventional log...

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Family variation in diameter growth and acoustic velocity in three 5‑year‑old South African‑grown Pinus elliottii×Pinus caribaea progeny trials established on three diverse sites

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Francois S Malan --- Research Division, South Africa

This paper discusses family differences in the stiffness of young Pinus elliottii×P. caribaea wood and how these differences relate to differences in growth rate and altitude. Trees for measurement were obtained from three 5‑year‑old progeny trials established at three diverse...

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Institutional Factors Affecting Expansion within the East African Community: An Analysis of Managers’ Personal Stories

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Trey Sutton --- Robins School of Business, USA Jeremy C. Short --- Michael F. Price College of Business, USA Aaron F. McKenny --- College of Business Administration, USA Rebecca Namatovu --- Makerere University Business School, Uganda

This study investigates the roles of the regulative, normative, and cognitive institutional pillars as perceived obstacles and facilitators of internationalization within an integrated region. Integrated regions involve efforts to create institutional similarities among member nations and encourage intra-regional trade. These...

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Digestive parameters and energy assimilation of Cape porcupine on economically important crops

Item type: Journal Article • Journal: African Zoology • Authors: Kerushka R Pillay --- School of Life Sciences, University of KwaZulu-Natal, South Africa Amy-Leigh Wilson --- School of Life Sciences, University of KwaZulu-Natal, South Africa Tharmalingam Ramesh --- School of Life Sciences, University of KwaZulu-Natal, South Africa Colleen T Downs --- School of Life Sciences, University of KwaZulu-Natal, South Africa

To better understand how Cape porcupines are able to successfully occupy many agricultural lands, we studied their digestive parameters and energy assimilation when fed three economically important agricultural crops (potatoes [Solanum tuberosum], sweet potatoes [Ipomoea batatas] and butternut [Juglans cinerea])...

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Not everyone can afford an apple a day: stigma and food insecurity in rural South African young adults

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rebecca Fielding-Miller --- Department of Medicine, Division of Global Public Health, Kristin L Dunkle --- South African Medical Research Council, Daniel Murdock --- Rollins School of Public Health, Department of Behavioral Sciences and Health Education, Georgia

The HIV epidemic in South Africa has created a generation of orphaned and vulnerable children (OVCs). Little is known about the experiences of these “former” OVCs once they pass their 18th birthday. We conducted a qualitative study to understand the...

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Church rules? The lines of ordentlikheid among Stellenbosch Afrikaners

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Annika Teppo --- Nordic Africa Institute, Sweden

Ethnographic 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...

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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, Nigeria

Eighteen 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...

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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'Ivoire

An 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...

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Estimating rotor resistance of wound rotor induction motor by look-up table and fuzzy logic approach

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Chitra Venugopal --- Department of Electrical Engineering, School of Engineering, South Africa

Wound rotor induction motors are commonly used in high torque, adjustable speed industrial applications. The provision to add external resistances to the rotor offers high starting torque and smooth starting at a low starting current. In this paper, the look-up...

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Differential dependence of apple (Malus domestica Borkh.) cultivars on the xanthophyll cycle for photoprotection

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Simeon Hengari --- WRaDAC, Namibia Karen I Theron --- Department of Horticultural Science, South Africa Stephanie JE Midgley --- 84 Arum Road, South Africa Willem J Steyn --- Department of Horticultural Science, South Africa

The dependence of fruit peel photosystems of ‘Granny Smith’, ‘Braeburn’, ‘Fuji’, ‘Golden Delicious’ and ‘Topred’ apple (Malus domestica Borkh.) peel on the xanthophyll cycle for photoprotection was studied under laboratory conditions. Mature fruit peel was either treated with 1 mm dithiothreitol...

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Predicting soil nitrogen content using narrow-band indices from Eucalyptus grandis canopies as proxy

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Thamsanqa Mzinyane --- University of KwaZulu-Natal, South Africa Jan van Aardt --- Rochester Institute of Technology, UK Fethi Ahmed --- University of Witswatersrand, South Africa Michael Gebreslasie --- School of Agriculture, Earth and Environmental Science, South Africa

Optimal fertiliser applications for sustainable forest stand productivity management, whilst protecting the environment, is vital. This study estimated soil nitrogen content using leaf-level narrow-band vegetation indices derived from a hand-held 350-2 500 nm spectroradiometer. Leaf-level spectral data were collected and subjected...

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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, Morocco

The 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...

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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, Ghana

In 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...

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Domestic Employment Relationships and Trickle-Down Work–Family Conflict: The South African Context

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Jenny M. Hoobler --- Human Resource Management, South Africa

In this manuscript I call attention to a group of forgotten persons central to the work–family balancing act – domestic workers – that is, those who provide in-home family member and household care for a wage. Especially in post-colonial contexts,...

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The African Union's Agenda 2063: Aspirations, Challenges, and Opportunities for Management Research

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Kaitlyn DeGhetto --- Department of Management, USA Jacob R. Gray --- Department of Entrepreneurship, Strategy, and Information Systems, USA Moses N. Kiggundu --- Sprott School of Business, Carleton University, Canada

As Africa emerges, rises, and begins to forge a more positive outlook ahead, scholars, business executives, community leaders, and policymakers are increasingly calling for concerted efforts to rethink the future and come up with big ideas for the 21st century...

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Using synergistic exogenous phytohormones to enhance somatic embryogenesis from leaf explants of a Eucalyptus grandis clone

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Muhammad Nakhooda --- Department of Biotechnology and Consumer Sciences, South Africa Eshani Mandiri --- School of Life Sciences, South Africa

Somatic embryogenesis (SE) in Eucalyptus spp. has been limited to germinated seeds, flowers, lignotubers or zygotic embryos. The low yield of somatic embryos from leaf explants has hampered progress, even though leaves offer a more viable source of clonal explants...

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Operator work-related musculoskeletal disorders during forwarding operations in South Africa: an ergonomic assessment

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Kudakwashe Phairah --- Department of Plant Production and Soil Science, Forest Science Postgraduate Programme, South Africa Michal Brink --- Department of Plant Production and Soil Science, Forest Science Postgraduate Programme, South Africa Paxie Chirwa --- Department of Plant Production and Soil Science, Forest Science Postgraduate Programme, South Africa Andrew Todd --- Department of Human Kinetics and Ergonomics, South Africa

Forest machine operators are still experiencing work-related musculoskeletal disorders (WMSDs) despite extensive mechanisation and modernisation of harvesting systems. However, paucity of local ergonomics research and technology transfer problems may affect the use of mechanised systems in South Africa. Consequently, this...

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HIV in acute care: a review of the burden of HIV-associated presentations to an Emergency Department

Item type: Journal Article • Journal: South African Family Practice • Authors: B Naicker --- Division of Emergency Medicine, South Africa RC Maharaj --- Division of Emergency Medicine, South Africa

Objective: To determine the burden of human immunodeficiency virus (HIV) disease and co-infection on a district-level Emergency Department (ED) in KwaZulu-Natal.

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Laboratory-based surveillance of Pneumocystis jirovecii pneumonia in South Africa, 2006–2010

Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Desiree du Plessis --- National Institute for Communicable Diseases, South Africa Bhavani Poonsamy --- National Institute for Communicable Diseases, South Africa Veerle Msimang --- National Institute for Communicable Diseases, South Africa Leigh Davidsson --- Department of Diagnostics and Vaccinology, Sweden Cheryl Cohen --- National Institute for Communicable Diseases, South Africa Nelesh Govender --- National Institute for Communicable Diseases, South Africa Halima Dawood --- Department of Medicine, South Africa Alan Karstaedt --- School of Public Health, Faculty of Health Sciences, South Africa John Frean --- National Institute for Communicable Diseases, South Africa

Background: We aimed to establish the characteristics of patients with confirmed Pneumocystis jirovecii pneumonia recruited by passive, sentinel laboratory-based surveillance.

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COLISTIN: adult and paediatric guideline for South Africa, 2016

Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Quinten Labuschagne --- South African Society of Clinical Pharmacy (SASOCP), South Africa Natalie Schellack --- South African Society of Clinical Pharmacy (SASOCP), South Africa Andries Gous --- South African Society of Clinical Pharmacy (SASOCP), South Africa Elmien Bronkhorst --- South African Society of Clinical Pharmacy (SASOCP), South Africa Gustav Schellack --- South African Society of Clinical Pharmacy (SASOCP), South Africa Lindie van Tonder --- South African Society of Clinical Pharmacy (SASOCP), South Africa Archele Truter --- South African Society of Clinical Pharmacy (SASOCP), South Africa Caroline Smith --- South African Society of Clinical Pharmacy (SASOCP), South Africa Ruth Lancaster --- South African Society of Clinical Pharmacy (SASOCP), South Africa Sonya Kolman --- South African Society of Clinical Pharmacy (SASOCP), South Africa

This document was created to serve as a guideline for colistin prescribing in South Africa. Antimicrobial resistance is threatening the effective prevention and treatment of a wide variety of infections, especially those that are caused by multi-drug-resistant (MDR) gram-negative bacteria...

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Oral histories of HIV/AIDS support group members, NGO workers and home-based carers in KwaZulu-Natal

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Philippe Denis --- School of Religion, Philosophy and Classics, South Africa

The purpose of this paper is to bring to the attention of the AIDS research community the existence of an oral history project known as the Memories of AIDS Project. The project focused on HIV/AIDS support group members, non-governmental organisation...

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Subtidal macrozoobenthic community resilience to change following natural mouth breaching of the temporarily open/closed East Kleinemonde Estuary, South Africa

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TH Wooldridge --- Department of Zoology, South Africa K Bezuidenhout --- Department of Zoology, South Africa

The East Kleinemonde Estuary, on the south-east coast of South Africa, typically opens for only short periods, usually <10 days. During a nine-month study in 2006, marine influence persisted for a near-continuous period of three months. This provided an opportunity...

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Distribution and ecological risks of polychlorinated biphenyls (PCBs) in surface sediment of the Forcados River, Niger Delta, Nigeria

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CMA Iwegbue --- Department of Chemistry, Nigeria

Concentrations of Σ15 PCBs in sediments of the Forcados River, Nigeria, were determined in 2012 to provide information on the profile, sources and ecotoxicological risks of PCBs in the sediment. The screening concentrations of PCBs were quantified using a gas...

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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, Cameroon

African 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...

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Determinants of student performance in an accounting degree programme

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Jade Jansen --- University of the Western Cape, South Africa Charl de Villiers --- Auckland University of Technology, New Zealand

The objective of this study is to identify, by way of regression analysis, the factors that have a significant relationship with student performance in accounting at the third-year level at universities. This study extends the existing literature on student performance...

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An investigation of investors’ estimates of returns earned and the effect of anchoring on these estimations

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: G Dowie --- College of Accounting, South Africa G Willows --- College of Accounting, South Africa

This study examines overconfidence and anchoring in an investing environment to determine if there is evidence of the phenomenon amongst a sample of academics at participating universities.

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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 Africa

Lilian'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...

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Long-term physical, chemical and biological changes in a small, urban estuary

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Viskich --- Department of Biological Sciences and Centre for Invasion Biology, South Africa CL Griffiths --- Department of Biological Sciences and Centre for Invasion Biology, South Africa C Erasmus --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries, South Africa S Lamberth --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries, South Africa

The Diep River estuary, a small estuary in suburban Cape Town, South Africa, has been subject to disturbance for centuries. Several earlier studies have documented conditions in the system, providing baselines against which to measure more recent changes. This study:...

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Plastic ingestion by estuarine mullet Mugil cephalus (Mugilidae) in an urban harbour, KwaZulu-Natal, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Naidoo --- School of Life Sciences, South Africa AJ Smit --- Department of Biodiversity and Conservation Biology, South Africa D Glassom --- School of Life Sciences, South Africa

Coastal urban environments have high plastic pollution levels, and hence interactions between plastic debris and marine life are frequent. We report on plastic ingestion by mullet Mugil cephalus in Durban Harbour, KwaZulu-Natal, South Africa. Of 70 mullet (13.0–19.5 cm total length),...

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Institutional and regulatory framework for biodiesel production: International perspectives and lessons for South Africa

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Chipo Mukonza --- Institute of Corporate Citizenship, South Africa Godwell Nhamo --- Institute of Corporate Citizenship, South Africa

Biodiesel is produced from a range of feedstock including oil seeds (canola/rape and soya beans), as well as used cooking oil. This is done by converting the oil to methyl esters in a transesterification process that yields glycerine as one...

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Technical efficiency of informal manufacturing sector enterprises: Evidence from the informal metal industry of Zimbabwe

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kingstone Mujeyi --- Agricultural Economics and Extension, Zimbabwe Shephard Siziba --- Agricultural Economics and Extension, Zimbabwe Wilbert. Z. Sadomba --- Centre for Applied Social Sciences, Zimbabwe Jackqeline Mutambara --- Agricultural Economics and Extension, Zimbabwe

Using data collected from a sample of 442 informal enterprises operating at eight centres in three provinces of Zimbabwe, this study evaluates technical efficiency of selected informal sector metal manufacturing enterprises. An analysis of factors that influence such efficiency levels...

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Taking care: Creating a non-alcoholic cocktail for Generation X

Item type: Journal Article • Journal: • Authors: Shirley Verkade --- Stenden Hotel Management School, Leeuwarden, The Netherlands Jonathan van Driel --- Stenden Hotel Management School, Leeuwarden, The Netherlands Femke Vrenegoor --- Stenden Hotel Management School, Leeuwarden, The Netherlands

This paper reports on a Hospitality Research Project, a third-year project at Stenden Hotel Management School, dedicated to the design, creation and testing of three different non-alcoholic cocktail recipes for restaurant De Pleats in Burgum, the Netherlands. On the basis...

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Randomisation in a clinical trial: is it feasible in the Ebola crisis? If it is, then which method is suitable?

Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Jesca Mercy Batidzirai --- School of Mathematics, Statistics and Computer Science, South Africa

Randomisation is an integral component of any sensible clinical trial. Randomisation is the only way we can be sure that the patients have been allocated into the treatment arms with as minimum bias as possible, and that the treatment arms...

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Putting the squeeze on the sample covariance matrix for portfolio construction

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Brian Munro --- Cadiz Asset Management, The Terraces, South Africa David Bradfield --- Department of Statistical Sciences, South Africa

Portfolio construction plays a critical role in adding performance to a fund. Central to portfolio construction are the two primary inputs: the vector of forecast returns and the covariance matrix. Our focus is on the covariance matrix. With guidance from...

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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,...

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Symmetric Intersections of Rauzy Fractals

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Tarek Sellami --- , , Tunisia Víctor F. Sirvent --- , , Venezuela

In this article we study symmetric subsets of Rauzy fractals of unimodular irreducible Pisot substitutions. The symmetry considered is reflection through the origin. Given an unimodular irreducible Pisot substitution, we consider the intersection of its Rauzy fractal with the Rauzy...

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Michelangelo, the Sistine Chapel and the “secret” of cancer cachexia

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: A. Laviano --- Department of Clinical Medicine, Italy

The clinical journey of chronic diseases, including cancer, renal failure and chronic obstructive pulmonary disease, is frequently characterised by the progressive deterioration of nutritional status, leading to increased morbidity and mortality, and impinges upon quality of life. Disease-associated malnutrition is...

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Intestinal failure in childhood

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: O. Goulet --- Integrated program of Intestinal Failure, Home Parenteral Nutrition and Liver-Intestinal Transplantation, France

Intestinal failure (IF) requires the use of parenteral nutrition (PN) for as long as it persists and in case of irreversible IF may be an indication for intestinal transplantation (ITx). Biological evaluation of IF is becoming possible with the use...

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Knowledge, attitudes and practices of nursing staff regarding the Baby-Friendly Hospital Initiative in non-accredited obstetric units in Cape Town

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: L. Daniels --- Division of Human Nutrition, D. Jackson --- School of Public Health,

Objectives: The objectives of this study were to assess nursing staff knowledge, attitudes and practices regarding the Baby-Friendly Hospital Initiative (BFHI); to assess the knowledge of maternity obstetric unit (MOU) managers regarding BFHI principles and their attitude towards BFHI implementation;...

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Using different approaches to assess the reproducibility of a culturally sensitive quantified food frequency questionnaire

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: E. Wentzel-Viljoen --- Centre of Excellence for Nutrition, Potchefstroom R. Laubscher --- Biostatistics Unit, Parow A. Kruger --- Africa Unit for Transdisciplinary Health Research (AUTHeR), Potchefstroom

Objective: To report on the use of different approaches to assess the reproducibility of a culturally sensitive quantified food frequency questionnaire (QFFQ) used for assessment of the habitual dietary intake of Setswana-speaking adults in the North West Province of South...

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Nutrition management of a trauma patient with pneumatosis intestinalis

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: K. Roberts --- Dietitian,

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Patient safety and nutrition: is there a connection?

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Christina Nieuwoudt --- University of Pretoria Past Chairperson, United Arab Emirates

Nutrition care is not always recognised as a patient safety issue. This article explores the origins of the patient safety initiative and seeks to identify possible connections between nutrition care and patient safety. Examples of tools that can be used...

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Eating behaviour, eating attitude and body mass index of dietetic students versus non-dietetic majors: a South African perspective

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Sm Kassier --- Discipline of Dietetics and Human Nutrition, Durban Fj Veldman --- Discipline of Dietetics and Human Nutrition, Durban

Objectives: The objective was to determine and compare the eating behaviour, eating attitude and body mass index (BMI) of dietetic students to those of non-dietetic majors.

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Factors that influenced mothers and/or caregivers in the Tshwane Metropolitan Municipality, South Africa, to purchase infant formula for their infants

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Mp Tshikovhi --- Nestlé South Africa, Gj Gericke --- Department of Human Nutrition, Faculty of Health Sciences, Pj Becker --- Biostatistics Unit,

Objective: The objective of the study was to identify and categorise factors that influence the choice behind the purchase of an infant formula brand by mothers and/or caregivers, and the reasons for their choice.

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Work engagement in the mining industry in South Africa: The role of tasks and relationships

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joe Palo --- Optentia Research Focus Area, South Africa Sebastiaan Rothmann --- Optentia Research Focus Area, South Africa

The platinum mining sector in South Africa presents a significant context for the study of work engagement, given the major changes and turmoil experienced by employees in this sector. The aim of this study was to investigate the effects of...

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Caring and connectedness in the context of domestic worker employment in South Africa

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Christel Marais --- Department of Human Resource Management,

This study investigated workplace relational connectedness qualities in terms of domestic worker employment in a South African setting. Twenty black female domestic workers were recruited through purposive respondent-driven self-sampling. Participants ranged in age from 27 to 59 years. Semi-structured in-depth...

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Child sexual abuse and literacy achievement in a sample of South African primary school children

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jace Pillay --- South African Research Chair, Education and Care in Childhood,

This study investigated child sexual abuse (CSA) and literacy achievement among South African primary school children. Data on self-reported experience of CSA and actual literacy achievement were collected from a convenience sample of 160 learners from a Soweto school in...

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An evaluation of the Mental Health Facilitator programme in rural Uganda: Successes and recommendations for future implementation

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: James M. Van Leeuwen --- Global Livingston Institute, Sara Adkins --- Colorado School of Public Health, Tavia Mirassou-Wolf --- Colorado School of Public Health, Wendi K. Schweiger --- NBCC International, Ryan Grundy --- Global Livingston Institute,

This study evaluated the impact of a Mental Health Facilitator training protocol conducted with individuals from a local community in rural Uganda. The training programme is designed to facilitate the development and delivery of basic mental health services in under-served...

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Hooded Vulture Necrosyrtes monachus and African White-backed Vulture Gyps africanus nesting at the Olifants River Private Nature Reserve, Limpopo province, South Africa

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ara Monadjem --- Department of Biological Sciences, Swaziland Kerri Wolter --- VulPro NPC, South Africa Walter Neser --- VulPro NPC, South Africa Keith Bildstein --- Acopian Center for Conservation Learning, USA

Basic ecological information is still lacking for many species of African vultures. The Hooded Vulture Necrosyrtes monachus is known as a rare breeding resident in north-eastern South Africa. This study set out to monitor the nests of Hooded Vultures and,...

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Choice in HIV testing: the acceptability and anticipated use of a self-administered at-home oral HIV test among South Africans

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Elizabeth A Kelvin --- City University New York Graduate School of Public Health and Health Policy, City University of New York, USA Sonia Cheruvillil --- City University New York Graduate School of Public Health and Health Policy, City University of New York, USA Stephanie Christian --- City University New York Graduate School of Public Health and Health Policy, City University of New York, USA Joanne E Mantell --- Division of Gender, Health and Sexuality, HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Department of Psychiatry, USA Cecilia Milford --- MatCH Research (Maternal, Adolescent and Child Health Research), Department of Obstetrics and Gynaecology, South Africa Letitia Rambally-Greener --- MatCH Research (Maternal, Adolescent and Child Health Research), Department of Obstetrics and Gynaecology, South Africa Nzwakie Mosery --- MatCH Research (Maternal, Adolescent and Child Health Research), Department of Obstetrics and Gynaecology, South Africa Ross Greener --- MatCH Research (Maternal, Adolescent and Child Health Research), Department of Obstetrics and Gynaecology, South Africa Jennifer A Smit --- MatCH Research (Maternal, Adolescent and Child Health Research), Department of Obstetrics and Gynaecology, South Africa

Combination HIV prevention is being widely promoted by funders. This strategy aims to offer HIV prevention choices that can be selected and combined to decrease HIV risk in ways that fit with each individual’s situation. Treatment as prevention and pre-exposure...

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Moderate malnutrition in children aged five years and younger in South Africa: are wasting or stunting being treated?

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: L Steenkamp --- Department of Dietetics, R Lategan --- Head Department of Nutrition and Dietetics, J Raubenheimer --- Department of Biostatistics,

Objectives: The objective of the study was to describe wasting and stunting in children aged 12–60 months, admitted to targeted supplementary feeding programmes for the treatment of moderate acute malnutrition (MAM) in South Africa.

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True height and variability in estimates thereof across race and gender

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Christen Lahner --- Discipline of Dietetics and Human Nutrition, School of Agricultural Sciences and Agribusiness, Faculty of Science and Agriculture, Susanna Kassier --- Discipline of Dietetics and Human Nutrition, School of Agricultural Sciences and Agribusiness, Faculty of Science and Agriculture,

Although standing height is the ideal indicator of a subject’s true height, numerous internal and external factors can have an effect on its accuracy. These factors include measurement error, the clinical environment, growth and a secular change in growth, and...

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A secure framework for SMS-based service delivery in m-government using a multicast encryption scheme

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Adebukola Onashoga --- Department of Computer Science, Nigeria Adebayo Ogunjobi --- Department of Computer Science, Nigeria Thomas Ibharalu --- Department of Computer Science, Nigeria Oluwafunmilayo Lawal --- Department of Computer Science, Nigeria

The use of mobile devices has revolutionised the world. Their affordability, high availability and usage convenience could transform the current governance to mobile government. However, in literature, the existing m-government architecture in Africa does not adequately consider security in its...

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Taxpayers’ attitudes towards tax amnesties and compliance in South Africa: an exploratory study

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: S. V. Junpath --- Faculty of Accounting & Informatics, South Africa M. S. E. Kharwa --- Faculty of Accounting & Informatics, South Africa L. J. Stainbank --- Faculty of Accounting & Informatics, South Africa

South Africa has seen tremendous changes since 1994, from the introduction of a new government to structural changes in tax administration. One of the challenges the government faced in the new democracy was the restructuring of the tax system. Multiple...

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Arm-associated measurements as estimates of true height in black and white young adults of both genders: an exploratory study, Pietermaritzburg, KwaZulu-Natal, South Africa

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Christen R Lahner --- Dietetics and Human Nutrition, School of Agricultural, Earth and Environmental Sciences, South Africa Susanna M Kassier --- Dietetics and Human Nutrition, School of Agricultural, Earth and Environmental Sciences, South Africa Frederick J Veldman --- Dietetics and Human Nutrition, School of Agricultural, Earth and Environmental Sciences, South Africa

Objective: To determine the accuracy of arm-associated anthropometric measurements as estimates of true height.

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Influence of prey abundance and abiotic factors on the long-term home-range and movement dynamics of spotted grunter Pomadasys commersonnii in an intermittently open estuary

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BA Maree --- Department of Ichthyology and Fisheries Science, South Africa PD Cowley --- Department of Ichthyology and Fisheries Science, South Africa TF Næsje --- South African Institute for Aquatic Biodiversity, South Africa A-R Childs --- Department of Ichthyology and Fisheries Science, South Africa AI Terörde --- Arcus Consulting, South Africa EB Thorstad --- Norwegian Institute for Nature Research, Norway

Long-term home-range and movement dynamics of spotted grunter Pomadasys commersonnii and the distribution of their dominant prey, the sandprawn Callichirus kraussi, were investigated in the intermittently open East Kleinemonde Estuary, South Africa. In addition, the effects of fish length, diel...

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Heavy episodic alcohol drinking among students from a rural South African university: Correlates with personal-social variables

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Shai Nkoana --- Department of Psychology, South Africa Tholene Sodi --- Department of Psychology, South Africa Timotheus B. Darikwa --- Department of Statistics and Operations Research, South Africa

The aim of the study was to explore the personal and social factors contributing to heavy episodic alcohol drinking (HEAD) in a sample of students from a rural South African university. A sample of 837 undergraduate students (females = 56.6%;...

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Restive behaviour among school teachers: Leadership styles’ influences in a Nigerian setting

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Emenike N. Anyaegbunam --- Federal University, Nigeria Davies E. O. Ogbeide --- Madonna University, Nigeria

This study investigated the perception of leadership styles and employee restive behaviour by secondary school teachers in a Nigerian setting. Participants were 309 secondary school teachers (males = 41.42%; females = 58.58%; age range between 36 and 52 years; M...

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The meaning of compliance with land and labour legislation: understanding justice through farm workers’ experiences in the Eastern Cape

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Femke Brandt --- Centre for African Studies, South Africa Fani Ncapayi --- Centre for African Studies, South Africa

This paper explores the social meanings and uses of formal labour legislation on commercial farms in the Eastern Cape. Farm workers’ and dwellers’ experiences expose ongoing land and labour struggles on South Africa’s commercial farms. We focus on the ways...

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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 Africa

Background: 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.

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Political economy of decentralising HIV and AIDS treatment services to primary healthcare facilities in three Nigerian states

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Chinyere Mbachu --- Health Policy Research Group, Department of Pharmacology and Therapeutics, College of Medicine, Nigeria Obinna Onwujekwe --- Health Policy Research Group, Department of Pharmacology and Therapeutics, College of Medicine, Nigeria Nkoli Ezumah --- Health Policy Research Group, Department of Pharmacology and Therapeutics, College of Medicine, Nigeria Olayinka Ajayi --- , Nigeria Olusola Sanwo --- , Nigeria Benjamin Uzochukwu --- Health Policy Research Group, Department of Pharmacology and Therapeutics, College of Medicine, Nigeria

Decentralisation is defined as the dispersion, distribution or transfer of resources, functions and decision-making power from a central authority to regional and local authorities. It is usually accompanied by assignment of accountability and responsibility for results. Fundamental to understanding decentralisation...

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Do long memory and asymmetries matter when assessing downside return risk?

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Nico Katzke --- Economics Department, South Africa Chris Garbers --- Economics Department, South Africa

In this paper we set out to test whether, on sector level, returns series in South Africa exhibit long memory and asymmetries and, more specifically, whether these effects should be accounted for when assessing downside risk. The purpose of this...

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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, Canada

This 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...

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World culture festivals: Their perceived effect on and value to domestic and international tourism

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ki-tai Lee --- Department of Studies in Event Tourism and International Conferences, South Korea Joon-ho Kim --- Education Institute, Golden CATs, South Korea

This study investigated the impact of the festival experience (sensory, cognitive, and behavioural) on the perceived value and loyalty of tourists. The participants were 450 tourists (51.1% domestic; 48.9% international) who attended the 2015 South Korean World Culture festival. Of...

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Comparative performance of four survey methods for assessing Lilian’s Lovebird abundance 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 Michael R Perrin --- School of Life Sciences, South Africa Colleen T Downs --- School of Life Sciences, South Africa

Monitoring abundance of threatened species is important for conservation planning. Lilian’s Lovebird Agapornis lilianae is a near-threatened small parrot found in mopane Colophospermum mopane woodland. Its population has not been investigated in any part of its range. We investigated the...

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Hierarchical analysis of Swainson’s Spurfowl Pternistis swainsonii habitat use on Highveld maize and livestock farms

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Johann H van Niekerk --- Department of Environmental Sciences, College of Agriculture and Environmental Science, South Africa

This paper explains habitat use by Swainson’s Spurfowl Pternistis swainsonii on maize Zea mays and livestock farms on the Highveld south-east of Johannesburg, South Africa. The purpose is to describe habitat modification methods to manipulate the abundance of Swainson’s Spurfowl...

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Population estimates of the breeding birds of the Tinhosas islands (Gulf of Guinea), the only major seabird colony of the eastern tropical Atlantic

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Simon Valle --- Division of Biology and Conservation Ecology, School of Science and the Environment, UK Nuno Barros --- Portuguese Society for the Study of Birds, Marine Department, Portugal Iván Ramírez --- BirdLife International, Belgium Ross M Wanless --- Seabird Division, BirdLife South Africa, South Africa

The Tinhosas islands, in São Tomé e Príncipe, host the most important seabird breeding colony in the Gulf of Guinea, but information on its conservation status was hitherto unpublished or anecdotal, the last assessment having been performed in 1997. A...

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Assessing the accuracy of plotless density estimators using census counts to refine population estimates of the vultures of Kruger National Park

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Campbell Murn --- Hawk Conservancy Trust, UK André Botha --- Birds of Prey Programme, South Africa

Breeding population estimates for three vulture species in Kruger National Park (KNP), South Africa, were made in 2013 using data from aerial censuses and a plotless density estimator (PDE). PDEs are distance-based methods used to assess sparse populations unsuitable for...

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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 Africa

Background: The epidemiology of cystic fibrosis (CF) associated pathogens other than Pseudomonas aeruginosa in the South African cystic fibrosis population has not been previously described.

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Lithium-enhanced radioactive iodine ablation of hyperthyroid patients

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Emmanuel Nii Boye Hammond --- Division of Nuclear Medicine and Molecular Imaging, Department of Radiation Sciences, South Africa Mboyo-Di-Tamba Heben Willy Vangu --- Division of Nuclear Medicine and Molecular Imaging, Department of Radiation Sciences, South Africa

Objective: The objective of this study was to compare the effect of adjuvant lithium therapy on the efficacy of radioactive iodine therapy in hyperthyroidism.

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An unusual case of repeated venous air embolism during awake bilateral deep brain stimulation surgery

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: WMN Wan Hassan --- Department of Anaesthesiology and Intensive Care, School of Medical Sciences, Malaysia BT Yeap --- Department of Anaesthesiology and Intensive Care, School of Medical Sciences, Malaysia L Ab Mukmin --- Department of Anaesthesiology and Intensive Care, School of Medical Sciences, Malaysia ARI Ghani --- Department of Neurosciences, School of Medical Sciences, Malaysia RH Mohd Zaini --- Department of Anaesthesiology and Intensive Care, School of Medical Sciences, Malaysia

Venous air embolism (VAE) is the entrainment of air either from a surgical site or from the environment into the venous or arterial vasculature, which can subsequently cause systemic effects. Many cases are subclinical but large volume and high rate...

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Sedation for paediatric auditory electrophysiology in South Africa

Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: S Moodley --- Centre for Deaf Studies, South Africa C Storbeck --- Centre for Deaf Studies, South Africa

Background: The sedation of children in the medical and allied professional fields has been a topic of controversy and debate internationally. Limited information is available on the use of sedation for auditory electrophysiology testing in South Africa.

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Validation of an efficient visual method for estimating leaf area index in clonal Eucalyptus plantations

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Rodrigo Hakamada --- Forest Resources Graduate Program, Brazil Carmeni Giunti Neto --- Fibria, Brazil Cristiane CZ de Lemos --- International Paper do Brasil, Brazil Sérgio R Silva --- National Wheat Research Center, Brazilian Agricultural Research Corporation (Embrapa), Brazil Marina SG Otto --- Department of Plant Physiology and Biochemistry, Brazil Kevin B Hall --- Department of Forestry and Environmental Resources, USA José L Stape --- Suzano Company, Brazil

Leaf area index (LAI) is a key ecophysiological parameter in forest stands because it characterises the interface between atmospheric processes and plant physiology. Several indirect methods for estimating LAI have been developed. However, these methods have limitations that can affect...

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Risky sexual behaviour among women: Does economic empowerment matter? Case of Gabon, Mozambique, Sierra-Leone and Zambia

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Clifford O. Odimegwu --- Demography and Population Studies Programme, Schools of Public Health and Social Sciences, South Africa Nicole De Wet --- Demography and Population Studies Programme, Schools of Public Health and Social Sciences, South Africa Pamela C. Banda --- Demography and Population Studies Programme, Schools of Public Health and Social Sciences, South Africa

The link between economic empowerment and high risky sexual behaviour has been debated by different scholars in various settings. However, no consistently clear connection between poverty and lack of education has been found regarding engagement in risky sexual behaviour. Also,...

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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, USA

HIV 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...

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A machine survival time-based maintenance workforce allocation model for production systems

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: D.E. Ighravwe --- Department of Mechanical Engineering, Nigeria S.A. Oke --- Department of Mechanical Engineering, Nigeria

Today’s maintenance workforce operates in a complex business environment and relies on metrics that indirectly link equipment breakdown, fluctuating production rate, demand uncertainties and fluctuating raw material requirements. This has triggered a change in the scope as well as the...

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Factors leading to orphans and vulnerable children living in community-based homes

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jace Pillay --- South African Research Chair: Education and Care in Childhood, Faculty of Education,

This study explored the influences on living arrangements of orphans and vulnerable children (OVC) housed at a community-based home in Johannesburg, South Africa. A total of 50 OVC (males = 36%, females = 64%; age range 11 to 18 years)...

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Organochlorine pesticides in Cyprinus carpio from Sidi Salem Dam, north-western Tunisia

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Mzoughi --- Institut National des Sciences et Technologies de la Mer, Laboratoire Milieu Marin, R Ennouri --- Institut National des Sciences et Technologies de la Mer, Laboratoire Milieu Marin, L Chouba --- Institut National des Sciences et Technologies de la Mer, Laboratoire Milieu Marin,

Cyprinus carpio (Linnaeus, 1758) caught in Sidi Salem Dam in 2011 were analysed for the levels of organochlorine pesticides (OCPs), including hexachlorobenzene (HCB), aldrin, heptachlor, lindane, dieldrin, endrin, and pp′-DDT and its two main metabolites pp′-DDD and pp′-DDE, in order...

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Role of Brycinus lateralis (Teleostei: Alestidae) in dispersal and germination of Nymphaea nouchali (Angiospermae: Nymphaeaceae) seeds on a seasonal floodplain of the Okavango Delta, Botswana

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Mmusi --- Okavango Research Institute, Botswana K Mosepele --- Okavango Research Institute, Botswana M Murray-Hudson --- Okavango Research Institute, Botswana D Teketay --- Department of Crop Science and Production, Botswana M Horn --- Department of Biological Science, USA

Seed passage through the gut of vertebrates can be important for seed dispersal, but might influence seed viability. The ability of seeds to germinate after ingestion by seed-eating fish is important for the population dynamics of some plant species, and...

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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 Africa

The 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,...

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Age and growth of redeye round herring Etrumeus whiteheadi off the South African coast

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: Y Geja --- Branch Fisheries Management, Department of Agriculture, Forestry and Fisheries, South Africa MD Durholtz --- Branch Fisheries Management, Department of Agriculture, Forestry and Fisheries, South Africa CL Moloney --- Zoology Department and Marine Research Institute, South Africa

Ages of redeye round herring Etrumeus whiteheadi were estimated with associated errors and used to infer life-history information, such as age composition, age-at-maturity and instantaneous mortality rate. Samples were collected in November 2005 during a research survey aimed at estimating...

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Ocean robotics in support of fisheries research and management

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Swart --- Ocean Systems and Climate, South Africa JJ Zietsman --- Defence, Peace, Safety and Security, South Africa JC Coetzee --- Branch: Fisheries Management, South Africa DG Goslett --- Defence, Peace, Safety and Security, South Africa A Hoek --- Sea Technology Services (Pty) Ltd, South Africa D Needham --- Sea Technology Services (Pty) Ltd, South Africa PMS Monteiro --- Ocean Systems and Climate, South Africa

South Africa’s small-pelagic fishery is a socio-economically important component of the country’s commercial fisheries sector, second in value only to the demersal trawl fishery. Management of this sector relies on infrequent hydro-acoustic surveys, which provide measures of anchovy Engraulis encrasicolus...

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Nutrient intake, digestibility and rumen fermentation characteristics of sheep fed on selected forage sweet potato cultivars

Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: R. Irungu --- Kenya Agricultural and Livestock Research Organization, Kenya P.K. Migwi --- Egerton University, Kenya J.N. Kariuki --- Kenya Agricultural and Livestock Research Organization, Kenya A.Y. Guliye --- Egerton University, Njoro, Kenya

Selected forage sweet potato cultivars (Ipomoea batatas Lam) have superior forage characteristics, have high rates of regeneration after harvest, are able to smother weeds and can tolerate diseases and moisture stress. However, little information is documented on their feeding value...

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Predictors of superstitious beliefs

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Patrick Kwaku Ofori --- School of Health and Allied Sciences, David Tod --- School of Sport and Exercise Sciences, UK David Lavallee --- School of Sport, UK

This study investigated whether relationships exist among personal control, coping mechanism, primary control, secondary control and superstitious beliefs. The participants were 375 Ghanaian student athletes (females = 44%). They completed measures of self-reported superstitious beliefs, personal control, coping mechanisms, primary...

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Valuable Russian wheat aphid-resistant bread wheat accessions identified using four South African Diuraphis noxia biotypes

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Vicki L Tolmay --- Agricultural Research Council-Small Grain Institute, South Africa Mardé Booyse --- Agricultural Research Council Infruitec-Nietvoorbij, South Africa

Resistance-breaking biotypes of Diuraphis noxia have been reported in both the USA and South Africa where commercial cultivars with genetic resistance to this pest have been deployed. The need to identify novel Russian wheat aphid (RWA) resistance for deployment against...

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The place branding of Qatar

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Maaike de Jong --- European Tourism Futures Institute, Stenden University, the Netherlands

Destination branding has become popular. Countries brand themselves to draw visitors and competent expatriates and to create economic diversification. The brand emphasises the uniqueness of the place; it frames the culture and sells its way of life. In the perspective...

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Hospitableness: the new service metaphor? Developing an instrument for measuring hosting

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Matthew Blain --- Compass Group UK & Ireland, United Kingdom Conrad Lashley --- School of International Hospitality Management, Stenden University of Applied Sciences, The Netherlands

Over the last couple of decades the word hospitality has emerged from the shadow of being used to describe a cluster of commercial activities providing accommodation, food and drink experiences to guests for a fee. Hospitality describes a ubiquitous aspect...

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Connecting entrepreneurship and education

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Sjoerd A. Gehrels --- Stenden Academy of International Hospitality Research, The Netherlands

The aim of this research is to explore the contextual characteristics of a particular group of Dutch restaurant owners, the successful culinary entrepreneurs (SCEs), to examine how these contextual characteristics might be used in a hospitality education. This very small...

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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 Netherlands

This 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:...

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Brand performance of Chinese domestic vs. international hotels: Perceptions of operators as well as domestic and foreign guests

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Cathy H.C. Hsu --- School of Hotel and Tourism Management, The Hong Kong Polytechnic University,

The significant differences in financial performance between internationally branded hotels and domestically branded hotels in China inspired this study. As part of the research, we surveyed hotel operators and guests on their perception of brand performance of the hotel they...

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Taking care: Creating a non-alcoholic cocktail for Generation X

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Shirley Verkade --- Stenden Hotel Management School, The Netherlands Jonathan van Driel --- Stenden Hotel Management School, The Netherlands Femke Vrenegoor --- Stenden Hotel Management School, The Netherlands

This paper reports on a Hospitality Research Project, a third-year project at Stenden Hotel Management School, dedicated to the design, creation and testing of three different non-alcoholic cocktail recipes for restaurant De Pleats in Burgum, the Netherlands. On the basis...

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Luxury consumption in tourism: The case of Dubai

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Sanjay Nadkarni --- Emirates Academy of Hospitality Management, United Arab Emirates Andy Heyes --- Stenden Hotel Management School, The Netherlands

Over the past 30 years, Dubai has quickly developed into what can no doubt be described as one of the pinnacle tourist and business destinations of the world. Fuelled by the vision and generosity of H.H. Sheikh Mohammad bin Rashid...

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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 --- , , USA

Vestigial 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...

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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 --- , , USA

Within 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...

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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 Africa

Background: 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...

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Personality as a moderator between emotional exhaustion and workplace deviance among teachers

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ibeawuchi K. Enwereuzor --- Department of Psychology, Ike E. Onyishi --- Department of Psychology, Ijeoma F. Onyebueke --- Department of Psychology, Lawrence O. Amazue --- Department of Psychology, Mary Basil Nwoke --- Department of Psychology,

This study investigated the moderating role of personal factors of agreeableness and conscientiousness in the relationship between emotional exhaustion and workplace deviance. The sample comprised 200 teachers from nine schools in the south-eastern part of Nigeria (females = 85%; married...

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Decision-support tool for management of miombo woodlands: a matrix model approach

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Wilson A Mugasha --- Department of Ecology and Natural Resource Management, Norway Ole M Bollandsås --- Department of Ecology and Natural Resource Management, Norway Terje Gobakken --- Department of Ecology and Natural Resource Management, Norway Eliakimu Zahabu --- Department of Forest Mensuration and Management, Tanzania Josiah Z Katani --- Department of Forest Mensuration and Management, Tanzania Tron Eid --- Department of Ecology and Natural Resource Management, Norway

Rational forest management planning requires information on the present forest state and on future development. However, forest management planning in Tanzania has often been done without any information on forest development because appropriate tools are lacking. This study presents a...

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The multidimensional nature of HIV stigma: evidence from Mozambique

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Maria A Carrasco --- Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, USA Rosario Arias --- Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, USA Maria E Figueroa --- Johns Hopkins Center for Communications Programs, USA

HIV stigma continues to be a major challenge to addressing HIV/AIDS in various countries in sub-Saharan Africa, including Mozambique. This paper explores the multidimensional nature of HIV stigma through the thematic analysis of five qualitative studies conducted in high HIV...

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Status of the Nile crocodile population in Pongolapoort Dam after river impoundment

Item type: Journal Article • Journal: African Zoology • Authors: Garreth Champion --- School of Life Sciences, South Africa Colleen T Downs --- School of Life Sciences, South Africa

The major Nile crocodile Crocodylus niloticus populations in South Africa are threatened by pollution, habitat alteration/destruction, and poaching. This has highlighted the importance of other minor populations. The Phongola River Nile crocodile population was previously considered as unsubstantial. Consequently, we...

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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 Africa

Separation 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...

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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 Africa

Relationships 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...

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Bird watching and estimation of bird diversity – not always corresponding: a reply to Hogg and Vande weghe

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Callixte Gatali --- Department of Wildlife and Aquatic Resources Management, Rwanda Kjell Wallin --- Department of Biological and Environmental Sciences, Sweden

Some occurrences of rare or unusual bird species reported by us in a previous paper (Ostrich 86(3): 267–276, 2015) are considered to be doubtful by Hogg and Vande weghe (Ostrich 88(1): 83–88, 2017). We believe that some of the problems...

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Development of a low-resolution genome scan marker set for the acceleration of major gene or QTL mapping in wheat

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Elsabet Wessels --- CenGen (Pty) Ltd, South Africa Renée Prins --- CenGen (Pty) Ltd, South Africa

The traditional approach to identify targeted quantitative trait loci (QTL) or genes in a mapping study is to develop partial to comprehensive genetic maps by using a fairly large number of molecular markers. This is a cumbersome and potentially expensive...

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Stability and enhancement analysis of a modelled self-balancing verticalized mobility aid using optimal control techniques

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Roger van Rensburg --- Department of Electrical Engineering, South-Africa Nico Steyn --- Department of Electrical Engineering, South-Africa Lambert Trénoras --- Laboratoire d’Ingénierie des Systèmes de Versailles, France Yskandar Hamam --- Department of Electrical Engineering, South-Africa Eric Monacelli --- Laboratoire d’Ingénierie des Systèmes de Versailles, France

This research comprises an analytical study of the Gyrolift, a new type of robotic wheelchair mobility aid adapted from the Segway self-balancing human transporter, and suggests additional contributions to its development. The Gyrolift is equipped with an agility module that...

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Community-level institutions in the management of palm-forest resources in Southeastern Nigeria

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Edlyne E. Anugwom --- Department of Sociology/Anthropology, Nigeria Eddie Igbokwe --- Department of Agricultural Extension, Nigeria Noble Nweze --- Department of Agricultural Economics, Nigeria

The study examined the role of community-level institutions in the management of palm-forest resources in Southeastern Nigeria. Southeastern Nigeria is undoubtedly the palm-forest and palm oil belt of Nigeria where these resources have been managed for at least the last...

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Accounting for revenue using an accountability and business model framework: The case of the South African Institute of Chartered Accountants’ professional examinations

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Warren Maroun --- School of Accountancy, South Africa

This research adopts a normative approach. It builds on the academic literature which argues that the usefulness of financial reporting can be enhanced by aligning accounting for balances and transactions with an organisation’s business model, as presented in its integrated...

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Portfolio performance under reference-day risk

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Marcelo Gonzalez --- Universidad de Chile, Chile Arturo Rodriguez --- Universidad de Chile, Chile Roberto Stein --- College of Business Administration, USA

Reference-day risk has been previously identified as a type of sampling variation phenomenon, and its effect on the estimation of stock returns and their volatility and market betas has been documented. Using a dataset of daily equity mutual fund returns,...

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How foreign and institutional directorship affects corporate dividend policy

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: María Consuelo Pucheta-Martínez --- Department of Finance and Accounting, Spain Blanca López-Zamora --- Departmento de Economía, Ecuador

The aim of this study is to examine how board composition affects dividend policies. Concretely, we analyse the effect of institutional directors on boards, also differentiating between pressure-sensitive and pressure-resistant institutional directors. Furthermore, the impact of foreign directors is also...

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Investor sentiment, asset returns and firm characteristics: Evidence from the Korean Stock Market

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Heejin Yang --- College of Economics, Republic of Korea Doojin Ryu --- College of Economics, Republic of Korea Doowon Ryu --- College of Economics, Republic of Korea

This study investigates the effects of investor sentiment on asset returns with respect to firm characteristics. By analysing a unique stock trading dataset of the Korean Stock Market that contains rich information on investor types and sentiment, we confirm that...

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Pathological vestibular symptoms presenting in a group of adults with HIV/AIDS in Johannesburg, South Africa

Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Katijah Khoza-Shangase --- Department of Speech Pathology and Audiology, South Africa Kayla Jade Van Rie --- Department of Speech Pathology and Audiology, South Africa

Aim: The current study aimed to explore the pathological vestibular symptoms presenting in a group of adults with HIV/AIDS in Johannesburg, South Africa.

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Characterisation of pigeon pea (Cajanus cajan) landraces grown in two climatic zones in KwaZulu-Natal province, South Africa

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Lindah L Hluyako --- Discipline of Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Alfred O Odindo --- Discipline of Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Paramu Mafongoya --- Discipline of Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Nkanyiso J Sithole --- Discipline of Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Lembe S Magwaza --- Discipline of Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa

Pigeon pea is an important legume in arid and semi-arid areas of the Sub-Saharan Africa. Knowledge of adaptation characteristics of genotypes would significantly enhance its production in diverse environments of the region. Field experiments were conducted at two sites, namely...

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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 Sagona

A 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)...

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Diagnosing foliar nutrient dynamics of Eucalyptus grandis in KwaZulu-Natal, South Africa, using optimal element ratios and the diagnosis and recommendation integrated system (DRIS)

Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: JM Campion MC Scholes

Fertilisation is one of the most cost-effective methods of increasing and maintaining the productivity of Eucalyptus grandis plantations in South Africa. This silvicultural practice can be optimised by using the foliar nutrient ratios measured in plants at maximum growth as...

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Bark removal for medicinal use predisposes indigenous forest trees to wood degradation in Zambia

Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: D Chungu A Muimba-Kankolongo J Roux FM Malambo

Bark harvesting for medicinal purposes has become widespread in Zambia, mainly due to the high levels of poverty among the population. The injury caused to trees leads to wood deterioration as a result of insect damage and fungal infection. This...

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Conflict management styles and work-related well-being among higher education employees

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Wilme M. Van Niekerk --- School of Human Resource Sciences, South Africa Marissa De Klerk --- School of Human Resource Sciences, South Africa Jeanine K. Pires-Putter --- School of Human Resource Sciences, South Africa

The objective of the study was to assess the relationship between conflict management styles and work-related well-being of employees in a higher education institution in South Africa. Participants were academic personnel (n = 180) and support staff (n = 201),...

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Construct validation of the Zimbardo Time Perspectives Inventory

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nico Keyser --- Department of Economics, South Africa

The aim of the present study was to validate the factorial structure and psychometric properties of the Zimbardo Time Perspectives Inventory (ZTPI) in a South African student sample. A total of 200 students completed the ZTPI. The sample comprised 58...

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The dynamics and digitisation of religious testimonies: a case of prophetic ministries in Botswana

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Gabriel Faimau --- Department of Sociology, Botswana

A major element in the religious practice of believers in prophetic Christianity is the sharing of religious testimonies. Focusing on prophetic ministries in Botswana, this paper examines the nature and function of religious testimonies and the dynamics of their digitisation...

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Physiological response to angling of Africa’s premier freshwater angling species, the tigerfish Hydrocynus vittatus

Item type: Journal Article • Journal: African Zoology • Authors: Ruan Gerber --- Water Research Group, Unit for Environmental Sciences and Management, South Africa Glyn Howatson --- Water Research Group, Unit for Environmental Sciences and Management, South Africa Richard Greenfield --- Centre for Aquatic Research, Department of Zoology, South Africa Ina Wagenaar --- Centre for Aquatic Research, Department of Zoology, South Africa Nico Smit --- Water Research Group, Unit for Environmental Sciences and Management, South Africa

Angling fraternities widely promote catch-and-release (C&R) as a fisheries management tool. This study aimed to determine the physiological response of Africa’s premier freshwater angling species, the tigerfish Hydrocynus vittatus, to C&R angling in the Okavango Delta, Botswana. Standard angling techniques...

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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 Africa

During 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...

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Estuarine and coastal connectivity of an estuarine-dependent fishery species, Pomadasys commersonnii (Haemulidae)

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MH Dames --- Department of Ichthyology and Fisheries Science, South Africa PD Cowley --- South African Institute for Aquatic Biodiversity, South Africa A-R Childs --- Department of Ichthyology and Fisheries Science, South Africa RH Bennett --- South African Institute for Aquatic Biodiversity, South Africa EB Thorstad --- Norwegian Institute for Nature Research, Norway TF Næsje --- Norwegian Institute for Nature Research, Norway

Understanding the level of connectivity between estuarine and coastal waters is essential for appropriate management of estuarine-associated taxa. Most studies have focused on the role of a single estuary, while limited research exists on the importance of multiple estuaries to...

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An audit of stillborn babies in mothers with diabetes mellitus at a tertiary South African Hospital

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Jana Rossouw --- Department of Obstetrics and Gynaecology, South Africa David Hall --- Department of Obstetrics and Gynaecology, South Africa Deidré Mason --- Department of Obstetrics and Gynaecology, South Africa Gabriël Gebhardt --- Department of Obstetrics and Gynaecology, South Africa

Objectives and design: This study is a retrospective audit spanning six years following the implementation of a new guideline on the management of diabetes in pregnancy. It aims to describe the patient profile of pregnancies complicated by diabetes and stillbirth.

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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, Zimbabwe

In 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...

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Univariate tests of momentum on the JSE

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Daniel Page --- Finance Division, School of Economic & Business Sciences, South Africa Christo Auret --- Finance Division, School of Economic & Business Sciences, South Africa

This study intends to test whether medium-term price momentum is present on the cross-section of shares listed on the JSE. Using the methodology of Jegadeesh and Titman (1993; 2001), shares are sorted applying four estimation periods (E = 3, 6,...

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The decline of an urban Hooded Vulture Necrosyrtes monachus population in Dakar, Senegal, over 50 years

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Wim C Mullié --- , Senegal François-Xavier Couzi --- Société d’Etudes Ornithologiques de la Réunion, France Moussa Sega Diop --- AfriWet Consultants, Senegal Bram Piot --- Cité Ndiatte Almadies, Senegal Theo Peters --- Royal Netherlands Embassy, Senegal Pierre A Reynaud --- 275 Rue Robert Schuman, France Jean-Marc Thiollay --- 2 Rue de la Rivière, France

As in many West African cities, in Dakar Hooded Vultures Necrosyrtes monachus have always been characteristic urban scavengers. The recent decline of Hooded Vultures in other parts of Africa, mainly eastern Africa, has been the reason in 2015 for up-listing...

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Productivity of the declining Bearded Vulture Gypaetus barbatus population in southern Africa

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sonja C Krüger --- Ezemvelo KZN Wildlife, South Africa Arjun Amar --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa

Recent research has shown that anthropogenic influences are driving the abandonment of breeding territories in the declining southern African Bearded Vulture Gypaetus barbatus meridionalis population. Survival rates appear to be low (86% for adults) due to poisoning and collisions with...

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The dimensionality of disclosure of HIV status amongst post-partum women in Cape Town, South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jo Hunter-Adams --- Health Economics Unit, Public Health and Family Medicine, South Africa Allison Zerbe --- ICAP, USA Tamsin Philips --- Centre for Infectious Diseases Epidemiology & Research, Public Health and Family Medicine, South Africa Zanele Rini --- Centre for Infectious Diseases Epidemiology & Research, Public Health and Family Medicine, South Africa Landon Myer --- Centre for Infectious Diseases Epidemiology & Research, Public Health and Family Medicine, South Africa Greg Petro --- Department of Obstetrics & Gynaecology, South Africa Elaine Abrams --- ICAP, Mailman School of Public Health and College of Physicians and Surgeons, USA

Disclosure of HIV status to sexual partners and others has been presented as positive health behaviour and is widely encouraged by antiretroviral treatment (ART) programmes, providers and policies. However, disclosure is also highly contextual and its positive effects are not...

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Impact of seasonal nitrogen fertilisation on production characteristics of a mixed grass pasture in the Western Cape province of South Africa

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Carien Bester --- Department of Agronomy, South Africa Johan Labuschagne --- Research and Technology Development Services, Department of Agriculture Western Cape, South Africa Petrus J Pieterse --- Department of Agronomy, South Africa

Pasture production in the Western Cape has traditionally been based on temperate species producing the majority of fodder during spring and autumn after which dry matter production decreases in winter. To investigate seasonal fertiliser nitrogen (N) management strategies to optimise...

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Commercialization of higher education institutions’ research within the National System of Innovation

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Wanjiru Gachie --- Discipline of Computer Science Education, South Africa Desmond Wesley Govender --- Discipline of Computer Science Education, South Africa

The commercialization of higher education institutions’ (HEIs’) research within the South African National System of Innovation (NSI) has received prominence in the post-apartheid era. Intra-African NSI dialogue to draw out context-specific and generic country experiences that could inform policy developments,...

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Scientific real-time research problem-solving and pharmaceutical innovation

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Chris William Callaghan --- School of Economic and Business Sciences, South Africa

Despite dramatic advances on a global scale in the scientific fields that underlie pharmaceutical innovation, the literature suggests that returns on investment in pharmaceutical R&D have not kept pace. Further, some argue that for the last 50 years advances in...

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Evaluating fit of the Prospective and Retrospective Memory Questionnaire (PRMQ) in a Nigerian adult population

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Philip C. Mefoh --- Department of Psychology, Nigeria Lawrence E. Ugwu --- Department of Psychology, Nigeria Agnes E. Okafor --- Department of Social Work, Nigeria

This study aimed to evaluate the latent structure of the Prospective and Retrospective Memory Questionnaire (PRMQ) and to estimate the reliability and validity of scores from the measure in a Nigerian adult population (N = 758; age range = 18...

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Value expectation confirmation and word-of-mouth intention among international tourists of a cultural festival experience

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joon-ho Kim --- Department of Business Administration, South Korea Hyun-ju Choi --- Department of Cultural & Arts Management, South Korea Seung-hye Jung --- School of Dance, South Korea

We examined expectation conformation and word-of-mouth marketing intention among international tourists (177 white; 138 black; and 98 Asian) who experienced a tourism promotion cultural festival event; taking into account their personal, artistic, and societal cultural values. We applied multiple regression...

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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, Australia

Intensive 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...

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Optimal grazing management strategies: evaluating key concepts

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Richard WS Fynn --- Okavango Research Institute, University of Botswana, Botswana Kevin P Kirkman --- Grassland Science, South Africa Riaan Dames --- , Namibia

Rangeland management strategies must be based on robust ecological and economic concepts if they are to be effective and profitable. Thus, the aim of this paper was to examine concepts related to grazing and resting of grassland and associated effects...

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A global assessment of Holistic Planned Grazing™ compared with season-long, continuous grazing: meta-analysis findings

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Heidi-Jayne Hawkins --- Department of Biological Sciences, South Africa

It has been claimed that Holistic Planned Grazing™ (HPG), a type of rotational grazing, can increase productivity in rangelands and reverse climate change while doubling the stocking rate, mainly through the impact of densely bunched animals on primary production. Previous...

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Fear of stigma, beliefs, and knowledge about HIV are barriers to early access to HIV testing and disclosure for perinatally infected children and adolescents in rural communities in South Africa

Item type: Journal Article • Journal: South African Family Practice • Authors: Sphiwe Madiba --- Department of Environmental and Occupational Health, South Africa Mathildah Mokgatle --- Department of Biostatistics, South Africa

Background: The majority of HIV-infected children in resource-limited countries are not aware of their HIV status because of the various reasons responsible for the delay in seeking HIV testing for children. The aim of the study was to determine the...

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Relationship between somatic growth and otolith growth: a case study of the ornate jobfish Pristipomoides argyrogrammicus from the coast of Réunion (SW Indian Ocean)

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Mahé --- Ifremer, Fisheries Laboratory, Sclerochronology Centre, France Y Aumond --- Ifremer, Le Port, France K Rabhi --- Ifremer, Fisheries Laboratory, Sclerochronology Centre, France R Elleboode --- Ifremer, Fisheries Laboratory, Sclerochronology Centre, France E Bellamy --- Ifremer, Laboratoire Environnement Ressources Languedoc Roussillon, France J Huet --- Ifremer, Le Port, France M Gault --- FRS Marine Laboratory, Scotland D Roos --- Ifremer, Le Port, France

The ornate jobfish Pristipomoides argyrogrammicus Valenciennes 1832 occurs in the Indo-West Pacific Ocean, where it is harvested by small-scale coastal fisheries. Management of this species is hindered by lack of adequate biological data. We sampled a total of 113 individuals...

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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 Africa

Twenty-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...

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The effect of low-level kelp supplementation on digestive enzyme activity levels in cultured abalone Haliotis midae fed formulated feeds

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Nel --- Department of Ichthyology and Fisheries Science, South Africa BI Pletschke --- Department of Biochemistry and Microbiology, South Africa PJ Britz --- Department of Ichthyology and Fisheries Science, South Africa

Previous studies have found that macroalgal inclusion in formulated diets for cultured abalone improves feed utilisation, and it was suggested that seaweed-associated bacteria supply enzymes that aid in the animal's digestion. In the present study, we hypothesised that kelp supplementation...

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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, Seychelles

This 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...

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Comparison of wood, fibre and vessel properties of drought-tolerant eucalypts in South Africa

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Sven-Olof Lundqvist --- Innventia AB, Sweden Thomas Grahn --- Innventia AB, Sweden Lars Olsson --- Innventia AB, Sweden Thomas Seifert --- Department of Forest and Wood Science, South Africa

Three drought-tolerant eucalypt genotypes have been investigated for a broad spectrum of properties to provide a basis for comparison on their suitability for various end-uses. The genotypes included were a Eucalyptus grandis × E. camaldulensis hybrid, E. gomphocephala and E...

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The disposition effect, price performance and fundamentals of IPOs: Evidence from Taiwan

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Chien-Feng Huang --- Department of Computer Science and Information Engineering, Taiwan, ROC Chih-Hsiang Chang --- Department of Finance, Taiwan, ROC Li-Min Kuo --- Department of Computer Science and Information Engineering, Taiwan, ROC Tsung-Nan Hsieh --- Department of Computer Science and Information Engineering, Taiwan, ROC

This study investigates whether the difference of the IPO issuing companies’ fundamentals impacts their price performance after listing and the significance of the disposition effect. Empirical results show that the IPO issuing companies’ fundamentals drive their first-day post-listing returns, one-year...

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HIV stigma experiences and stigmatisation before and after a HIV stigma-reduction community “hub” intervention

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Catharina Dorothea Prinsloo --- Africa Unit for Transdisciplinary Health Research (AUTHeR), Faculty of Health Sciences, South Africa Minrie Greeff --- Africa Unit for Transdisciplinary Health Research (AUTHeR), Faculty of Health Sciences, South Africa Annamarie Kruger --- Africa Unit for Transdisciplinary Health Research (AUTHeR), Faculty of Health Sciences, South Africa Itumeleng Paul Khumalo --- Optentia Research Focus Area, South Africa

This study sought to explore, describe and determine whether an HIV stigma-reduction community “hub” intervention would change the HIV stigma experiences of people living with HIV (PLWH) and the stigmatisation by the community in an urban area in South Africa...

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Experiences along the HIV care continuum: perspectives of Kenyan adolescents and caregivers

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Winnie K Luseno --- Pacific Institute for Research and Evaluation (PIRE), USA Bonita Iritani --- Pacific Institute for Research and Evaluation (PIRE), USA Susannah Zietz --- Pacific Institute for Research and Evaluation (PIRE), USA Suzanne Maman --- Department of Health Behavior and Health Education, USA Isabella I Mbai --- School of Nursing, Kenya Florence Otieno --- Kenya Medical Research Institute (KEMRI), Kenya Barrack Ongili --- Kenya Medical Research Institute (KEMRI), Kenya Denise Dion Hallfors --- Pacific Institute for Research and Evaluation (PIRE), USA

To be effective, HIV programmes should be responsive to the unique needs of diverse groups of infected adolescents. We highlight a range of adolescent perspectives on HIV services, including those who acquired HIV perinatally or sexually and those who were...

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Effect of self-monitoring of blood glucose on glycaemic outcome among type 2 diabetic patients

Item type: Journal Article • Journal: South African Family Practice • Authors: Oluwajimi Olanrewaju Sodipo --- Department of Family Medicine, Ayoade Adedokun --- Department of Family Medicine, Adedeji Adejumo Olusola --- Department of Community Health and Primary Health Care, Nigeria

Background: Diabetes mellitus is a chronic metabolic disorder which leads to complications especially when not properly managed. The role of self-monitoring of blood glucose (SMBG) in type 2 diabetic patients using oral hypoglycaemic agents has been a source of controversy.

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In-vitro diagnostics (IVDs) innovations for resource-poor settings: The Indian experience

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nidhi Singh --- Centre for Studies in Science Policy, India Dinesh Abrol --- Institute for Studies in Industrial Development (ISID), India

This article illustrates how the present institutional arrangements and the policy regime under perusal have not been able to support the development of an ecosystem for innovation-making for in-vitro diagnostics (IVDs) for resource-poor settings. Policies favouring trade liberalization and foreign...

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Community service for misdemeanours in Accra: Preferences of offenders, victims, judiciary, and community members

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Feikoab Parimah --- Department of Psychology, Ghana Joseph Osafo --- Department of Psychology, Ghana Kingsley Nyarko --- Department of Psychology, Ghana Nkansah Anakwah --- Department of Psychology, Ghana

Taking religiosity into account, the study explored preferences for community service sentencing by victims, offenders, judiciary, and community members from Accra, Ghana. One hundred and ninety respondents were sampled (females = 38.42%, offenders = 5.26%, victims = 58.95%, law enforcement...

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Genetic structure of wild and domesticated grasscutters (Thryonomys swinderianus) from south-western Nigeria

Item type: Journal Article • Journal: African Zoology • Authors: Oluwakayode M Coker --- Department of Wildlife and Ecotourism Management, Nigeria Abosede O Omonona --- Department of Wildlife and Ecotourism Management, Nigeria Olusegun A Fagbohun --- Department of Veterinary Microbiology and Parasitology, Nigeria Cortney Pylant --- Department of Wildlife Ecology and Conservation, USA James D Austin --- Department of Wildlife Ecology and Conservation, USA

Grasscutter (Thryonomys swinderianus) is a large rodent distributed across sub-Saharan Africa that is highly valued as a source of protein. There has been little effort to evaluate the genetic structure of grasscutters despite long-term harvesting pressure and over 40 years...

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Histological assessment of selected tissues in tigerfish (Hydrocynus vittatus Castelnau, 1861) from the Sanyati Basin, Lake Kariba, Zimbabwe: a DDT-sprayed area

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Mabika --- Department of Zoology, South Africa M Barson --- Department of Zoology, South Africa C van Dyk --- Department of Zoology, South Africa A Avenant-Oldewage --- Department of Zoology, South Africa

A pilot investigation was conducted in 2014 in the Sanyati Basin of Lake Kariba to ascertain whether long-term DDT spraying in the Kariba catchment had a negative effect on fish health. The aim was to assess the health of tigerfish,...

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Female-only care of Swainson’s Spurfowl Pternistis swainsonii chicks frees males for territorial maintenance

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Johann H van Niekerk --- Department of Environmental Sciences, College of Agriculture and Environmental Science, South Africa

Uniparental care often means that males do not contribute to the wellbeing of their offspring. For this reason, little attention has been given to avian species where the absent male contributes indirectly to the wellbeing of his chicks. This paper...

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Home range and habitat use of Trumpeter Hornbills Bycanistes bucinator in an urban–forest mosaic, Eshowe, South Africa

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Moses Chibesa --- School of Life Sciences, South Africa Barry Taylor --- School of Life Sciences, South Africa Tharmalingam Ramesh --- School of Life Sciences, South Africa Colleen T Downs --- School of Life Sciences, South Africa

Despite the negative impacts of urbanisation, some species adapt to pressures of habitat loss and fragmentation. Trumpeter Hornbills Bycanistes bucinator are a large avian forest frugivore that uses urban environments in South Africa. Consequently, we used GPS/UHF transmitters to study...

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Variation in selected solid wood properties of young Pinus patula from diverse sites in the Mpumalanga escarpment area in South Africa

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Barry G Muller --- Nelson Mandela Metropolitan University, South Africa Josua H Louw --- Nelson Mandela Metropolitan University, South Africa Francois S Malan --- Research Centre, South Africa (retired)

Regression analyses identified ‘Growth Days’ (an index expressing site moisture availability) as the only site variable contributing significantly to the prediction to wood density (R2 = 0.57), whereas the model predicting grain angle included only ‘Altitude’ (R2 = 0.60). These...

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Growth and dynamic modulus of elasticity of Pinus patula × Pinus tecunumanii hybrids in Mpumalanga, South Africa

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Phillip C Hongwane --- Komatiland Forests Research, South Africa R Glen Mitchell --- Forest Solutions Malaysia, Malaysia Arnulf Kanzler --- Sappi Forest Research, South Africa Steven D Verryn --- Creation Breeding Innovations, South Africa Paxie WC Chirwa --- Department of Plant and Soil Sciences, South Africa

Field establishment of South Africa’s most important commercial pine species, Pinus patula, is severely hampered by the pitch canker fungus, Fusarium circinatum. Importantly, hybrids between P. patula and other pine species tolerant to the pitch canker fungus, such as P...

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“I will take ARVs once my body deteriorates”: an analysis of Swazi men’s perceptions and acceptability of Test and Start

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Alfred K Adams --- Amsterdam Institute of Social Science Research, the Netherlands Agostino M Zamberia --- Department of Sociology and Social Work, Swaziland

Swaziland has the highest HIV prevalence in the world. To mitigate the spread and devastation caused by HIV and to improve the wellbeing of people living with HIV, the country has adopted the latest available HIV prevention campaigns, including “Test...

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HIV prevention needs for men who have sex with men in Swaziland

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Bhekie Sithole --- Health Communication Capacity Collaborative, Swaziland

Men who have sex with men (MSM) have a high HIV burden and also often face multiple other challenges accessing HIV services, including legal and social issues. Although Swaziland recently started responding with interventions for MSM, significant gaps still exist...

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Legal responses to HIV and AIDS: lessons from Swaziland

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Musa N Shongwe --- University of Swaziland, Swaziland

Since 1999, the HIV and AIDS epidemic in Swaziland has been declared a national disaster, and today HIV and AIDS still pose a great threat to the survival and development of Swaziland and its people. The impact of the pandemic...

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Determinants of forage adoption and production niches among smallholder farmers in Kenya

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Donald MG Njarui --- Kenya Agricultural and Livestock Research Organization-Katumani, Kenya Mwangi Gatheru --- Kenya Agricultural and Livestock Research Organization-Katumani, Kenya Elias M Gichangi --- Kenya Agricultural and Livestock Research Organization-Katumani, Kenya Elikana M Nyambati --- Kenya Agricultural and Livestock Research Organization-Headquarters, Kenya Clotilda N Ondiko --- Kenya Agricultural and Livestock Research Organization-Mtwapa, Kenya Keziah W Ndungu-Magiroi --- Kenya Agricultural and Livestock Research Organization-Kitale, Kenya

A study was conducted to assess factors that influence adoption of forages and choice of production niches in smallholder farms in Kenya. A total of 786 farmers (268 from coastal lowlands, 171 from eastern midlands, 132 from central highlands and...

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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, Wales

Accurate 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...

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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 Africa

Management 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...

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Endometrial cancer with bone marrow metastases: a management dilemma

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Bt Guzha --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa T Adams --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa L Rogers --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa N Mbatani --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa H-t Wu --- South African Medical Research Council (SAMRC)/University of Cape Town (UCT) Gynaecological Cancer Research Centre, South Africa N Fakie --- South African Medical Research Council (SAMRC)/University of Cape Town (UCT) Gynaecological Cancer Research Centre, South Africa J Opie --- Division of Haematology Pathology, South Africa La Denny --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa

A case is presented of a 67-year-old woman referred to the authors’ institution with endometrioid endometrial cancer with a leucoerythroblastic blood film and marked thrombocytopenia. On further evaluation, it was confirmed that she had grade 3 endometrial cancer with bone...

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Functionally graded metal matrix composite by centrifugal casting technique mathematical correlation

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Williams S. Ebhota --- Discipline of Mechanical Engineering, South Africa Freddie L. Inambao --- Discipline of Mechanical Engineering, South Africa

The functionally graded materials (FGMs) solidification process has complicated movement phenomena of fluid, solute and heat. These phenomena control the segregation of particles in a molten matrix, interactions of particles with a solidification front and the integration of particles in...

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A Place for Individuals: Positive Growth in Rwanda

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Hannah Grayson --- School of Modern Languages, UK

This article introduces the Rwandan Stories of Change research project, and uses data collected jointly with the Aegis Trust to argue for the value of in-depth studies on individual Rwandans’ positive growth. It seeks to explore the place of individual...

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Self-regulated learning among teacher education students: Motivational beliefs influence on the use of metacognition

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Charles Magoba Muwonge --- Department of Educational Foundations and Psychology, Uganda Ulrich Schiefele --- Department of Educational Sciences, Germany Joseph Ssenyonga --- Department of Educational Foundations and Psychology, Uganda Henry Kibedi --- Department of Psychology, Uganda

In the present study, we examined the relationships between motivational beliefs (self-efficacy, task value, and control of learning beliefs) and use of metacognitive learning strategies among teacher education students in Uganda. The sample comprised of 649 students selected from seven...

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Sexual cycle and seasonal expression of testosterone (T) in the testes of Sclerophrys mauritanica (Schlegel, 1841)

Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Omar Kisserli --- , , Algérie Elara Moudilou --- , France Jean-Marie Exbrayat --- , France

Sclerophrys mauritanica is an anuran amphibian found in the wetlands of Beni-belaid, Jijel, Algeria. The animals are constrained by wet (from September until May) and dry (from June until August) seasons, however, the sexual cycle of males is continuous (all...

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Combating Corruption in Africa through Institutional Entrepreneurship: Peering in from Business-government Relations

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Tahiru Azaaviele Liedong --- School of Management, UK

Corruption remains a significant barrier to the socio-economic development of Africa, despite efforts by various local, national and international stakeholders to combat it. Mishra and Maiko (2017), in their article which was published in Africa Journal of Management, suggest that...

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Curcumin mitigates fenthion-induced testicular toxicity in rats: histopathological and immunohistochemical study

Item type: Journal Article • Journal: African Zoology • Authors: Amel I Othman --- Department of Zoology, Faculty of Science, Egypt Manal Abdel-Hamid --- Department of Zoology, Faculty of Science, Egypt

Fenthion is a widely used organophosphorus pesticide in agriculture that induces different cytotoxic effects, including male reproductive toxicity. The present work aimed to study the ameliorative effects of curcumin, a potential therapeutic agent against several chronic diseases, on reproductive toxicity...

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Game fence presence and permeability influences the local movement and distribution of South African mammals

Item type: Journal Article • Journal: African Zoology • Authors: Tara J Pirie --- People and Wildlife Research Group, School of Biological Sciences, UK Rebecca L Thomas --- People and Wildlife Research Group, School of Biological Sciences, UK Mark DE Fellowes --- People and Wildlife Research Group, School of Biological Sciences, UK

Fences are utilised throughout the world to restrict the movements of wildlife, protecting them from threats and reducing human–wildlife conflict. In South Africa the number of privately-owned fenced game reserves has greatly increased in recent years, but little is known...

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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 Africa

The 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...

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Reflection on the first five years of South Africa’s Acoustic Tracking Array Platform (ATAP): status, challenges and opportunities

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PD Cowley --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa RH Bennett --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa A-R Childs --- Department of Ichthyology and Fisheries Science, South Africa TS Murray --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa

The Acoustic Tracking Array Platform (ATAP) is a marine science programme that monitors the movements and migrations of inshore marine animals along the South African coastline. Acoustically tagged animals are monitored by an expanded network of approximately 100 automated data-logging...

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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 Africa

The 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...

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Habitat characteristics of wintering Wood Warbler Phylloscopus sibilatrix in the Centre Region of Cameroon: conservation implications

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Taku Awa --- Laboratory of Applied Biology and Ecology, Faculty of Science, Cameroon Tsi A Evaristus --- Department of Fundamental Science, Higher Technical Teacher Training College, Cameroon Robin C Whytock --- School of Biological and Environmental Sciences, UK Tsetagho Guilain --- Laboratory of Applied Biology and Ecology, Faculty of Science, Cameroon John Mallord --- Centre for Conservation Science, Royal Society for the Protection of Birds, UK

Populations of many Afro-Palearctic birds have declined, with those wintering in sub-Saharan Africa, such as Wood Warbler Phylloscopus sibilatrix, particularly affected. In this study we investigated the relationship between habitat characteristics and Wood Warbler presence/absence in the Centre Region of...

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Assessment of potential sources of protozoan contamination between two avian feeding guilds in a conservation area

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adams A Chaskda --- AP Leventis Ornithological Research Institute, Department of Zoology, Nigeria Georgina S Mwansat --- Entomology and Parasitology Unit, Department of Zoology, Nigeria Danjuma Sani --- Entomology and Parasitology Unit, Department of Zoology, Nigeria Longtong Turshak --- Department of Science Laboratory Technology, Nigeria

Occasional screening of food and water quality available to organisms in protected areas could be beneficial to their successful conservation. This is important for areas receiving regular human visitors and exhibiting activities that may be detrimental to ecosystem health. This...

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Nest-site characteristics and aspects of the breeding biology of the endangered Timneh Parrot Psittacus timneh in Guinea-Bissau

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Daniel C Lopes --- Faculty of Sciences, Portugal Rowan O Martin --- World Parrot Trust, UK Mohamed Henriques --- MARE – Marine and Environmental Sciences Centre, Portugal Hamilton Monteiro --- Coastal Planning Office, Guinea-Bissau Aissa Regalla --- Institute of Biodiversity and Protected Areas, Guinea-Bissau Quintino Tchantchalam --- Institute of Biodiversity and Protected Areas, Guinea-Bissau Bucar Indjai --- INEP – National Institute for Study and Research, Guinea-Bissau Seco Cardoso --- Institute of Biodiversity and Protected Areas, Guinea-Bissau Celestino Manuel --- Institute of Biodiversity and Protected Areas, Guinea-Bissau Manjaco Cunha --- Institute of Biodiversity and Protected Areas, Guinea-Bissau Domingos Cunha --- Institute of Biodiversity and Protected Areas, Guinea-Bissau Paulo Catry --- MARE – Marine and Environmental Sciences Centre, Portugal

Timneh Parrots Psittacus timneh are endemic to the moist forests of West Africa. Concerns over rapid declines in populations due to overharvesting for the pet trade and forest loss prompted the species’ categorisation as Endangered on the IUCN Red List...

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Fungi and insects associated with Euphorbia ingens die-off in South Africa

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Johannes A van der Linde --- Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI), Faculty of Natural and Agricultural Sciences (NAS), South Africa Diana L Six --- College of Forestry and Conservation, Department of Ecosystem and Conservation Sciences, USA Michael J Wingfield --- Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI), Faculty of Natural and Agricultural Sciences (NAS), South Africa Jolanda Roux --- Department of Plant and Soil Sciences, FABI, NAS, South Africa

Euphorbia ingens, landmark succulent trees in savannas of South Africa, have been dying in large numbers over the last 10–15 years. Initial studies conducted in the Limpopo province of South Africa revealed a diverse group of biotic agents including fungi,...

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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, Indonesia

In 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...

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Harvesting and extraction impacts on Eucalyptus grandis × E. urophylla coppicing potential and rotation-end volume in Zululand, South Africa

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Kylle Schwegman --- Nelson Mandela Metropolitan University, South Africa Keith M Little --- Nelson Mandela Metropolitan University, South Africa Andrew McEwan --- Nelson Mandela Metropolitan University, South Africa Simon A Ackerman --- Institute for Commercial Forestry Research, South Africa

From the early 2000s there has been a general shift in South Africa in harvesting and extraction systems from the use of semi- to fully-mechanised systems. Any increase in mechanisation, as is occurring in Zululand, will need to take into...

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Modelling of an on-farm direct expansion bulk milk cooler to establish baseline energy consumption without milk pre-cooling: A case of Fort Hare Dairy Trust, South Africa

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Russel Mhundwa --- Fort Hare Institute of Technology, South Africa Michael Simon --- Fort Hare Institute of Technology, South Africa Stephen Loh Tangwe --- Fort Hare Institute of Technology, South Africa

Storage of milk at a low temperature of 4°C inhibits bacterial growth. As such bulk milk coolers (BMC) are used for cooling and storage of milk on dairy farms. This paper presents performance monitoring of a direct expansion bulk milk...

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Does institutional monitoring matter? Evidence from insider trading by information risk level

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Chune Young Chung --- School of Business Administration, Republic of Korea Sanggyu Kang --- School of Business Administration, Republic of Korea Doojin Ryu --- Department of Economics, Republic of Korea

We examine the effects of institutional ownership on insider exploitation of asymmetric information. Because institutional investors monitor firm activities in order to improve the corporate information environment, such monitoring could decrease the intensity of insider trading on private information. We...

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HIV-1 RNA testing of pooled dried blood spots is feasible to diagnose acute HIV infection in resource limited settings

Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Wentzel Dowling --- Division of Medical Virology, South Africa Kirsten Veldsman --- Division of Medical Virology, South Africa Mary Grace Katusiime --- Division of Medical Virology, South Africa Jean Maritz --- Division of Medical Virology, South Africa Peter Bock --- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, South Africa Sue-Ann Meehan --- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, South Africa Marije Van Schalkwyk --- Division of Infectious Diseases, Department of Medicine, South Africa Mark F Cotton --- Department of Paediatrics and Child Health, South Africa Wolfgang Preiser --- Division of Medical Virology, South Africa Gert U Van Zyl --- Division of Medical Virology, South Africa

Objectives: Rapid human immunodeficiency virus (HIV) antibody tests, routinely used for diagnosis in adults and older children in resource-limited settings (RLS), do not detect early HIV infections prior to seroconversion or when antibody levels are still low. Nucleic acid amplification...

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Estimating risk factors for HIV infection among women in Mozambique using population-based survey data

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sara S Dias --- EpiDoC Unit, Centro de Estudos de Doenças Crónicas da NOVA Medical School, Portugal Francisco Mbofana --- Ministry of Health, Mozambique Sheyla R Cassy --- Departamento de Matemática e Informática, Faculdade de Ciências, Mozambique Sónia Dias --- Instituto de Higiene e Medicina Tropical, Portugal Gonçalo F Augusto --- Instituto de Higiene e Medicina Tropical, Portugal Victor Agadjanian --- Center of Population Dynamics, USA Maria R O Martins --- Instituto de Higiene e Medicina Tropical, Portugal

The use of population-based survey data together with sound statistical methods can enhance better estimation of HIV risk factors and explain variations across subgroups of the population. The distribution and determinants of HIV infection in populations must be taken into...

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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, Ghana

As 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...

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Psychometric validation of an Organisational Performance Questionnaire (OPQ) based on the Burke-Litwin model

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Benny Olivier --- University of South Africa, South Africa

This study reports the findings on the development and validation of an Organisational Performance Questionnaire (OPQ) based on the Burke-Litwin model. Respondents were 398 employees from various public and private sector organisations in South Africa, consisting of different genders (male...

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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, Nigeria

The 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...

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People with severe and profound intellectual disability: Nurse carer experiences in a South African setting

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Dikeledi Manaka --- Department of Nursing Science, Faculty of Health Sciences, South Africa Annatjie van der Wath --- Department of Nursing Science, Faculty of Health Sciences, South Africa Miriam Moagi --- Department of Nursing Science, Faculty of Health Sciences, South Africa

We explored nurse carer experiences with people with severe and profound intellectual disability in a care and rehabilitation centre in South Africa. Informants were a convenience sample of 10 nurses (females = 7; males = 3; mean years of service...

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Presence of microplastics in the tube structure of the reef-building polychaete Gunnarea gaimardi (Quatrefages 1848)

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: HA Nel --- Department of Zoology and Entomology, South Africa PW Froneman --- Department of Zoology and Entomology, South Africa

The prevalence of microplastics in the marine environment has resulted in a need to understand their association with various fauna. The aim of this study was to assess whether microplastic particles are present in the tube structure of the indigenous...

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The use of granulated plastic waste in structural concrete

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: J. O. Akinyele --- Department of Civil Engineering, Nigeria A. Ajede --- Department of Civil Engineering, Nigeria

This work looked at the ways in which waste plastic can be effectively recycled as an alternative material in concrete production. The granulated plastic waste was used to partially replace fine aggregate (quarry dust) at 0, 5, 10, 15, and...

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Contemporary institutional solid waste management practices of Haramaya University, Eastern Ethiopia

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ashenafi Yimam Kassaye --- School of Geography and Environmental Studies, Ethiopia

Even though waste products arise from our ways of life and are generated at every stage of the process of production and development, the type of decision making that leads to adequate solid waste management requires a sound understanding of...

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Impact of number of stems per stool on mechanical harvesting of a Eucalyptus globulus coppiced plantation in south-west Western Australia

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Martin Strandgard --- Australian Forest Operations Research Alliance (AFORA), Australia Rick Mitchell --- Australian Forest Operations Research Alliance (AFORA), Australia

Coppice regeneration of eucalypt plantations is increasingly being used in Australia to reduce re-establishment costs. However, little is known about the impact of early coppice reduction regimes on harvester performance during clearfelling. The trial compared the productivity, time consumption, cost...

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Sawn-timber and kraft pulp properties of Pinus elliottii × Pinus caribaea var. hondurensis and Pinus patula × Pinus tecunumanii hybrids and their parental species

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: André Nel --- Shaw Research Centre, Sappi Forests Research, South Africa Francois S Malan --- Retired, South Africa Ron Braunstein --- Sappi Technology Centre, South Africa C Brand Wessels --- Department of Forest and Wood Science, South Africa Arnulf Kanzler --- Shaw Research Centre, Sappi Forests Research, South Africa

A study was undertaken to evaluate the quality of the timber produced by Pinus elliottii × Pinus caribaea var. hondurensis (PECH) and the Pinus patula × Pinus tecunumanii low elevation (PPTL) and high elevation (PPTH) hybrids and their parent species...

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A productivity model for first thinning of Pinus patula using a tractor and double-drum winch in South Africa

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Thabo Moloi --- Forest Postgraduate Programme, South Africa Michal Brink --- Forest Postgraduate Programme, South Africa Paxie W Chirwa --- Forest Postgraduate Programme, South Africa Elisha Ngulube --- Department of Forestry, Malawi

The productivity of skidding tractors in intermediate harvesting operations has not been determined in Mpumalanga, South Africa. The objective of this study was to develop a productivity model using a farm tractor in first thinning operations in Pinus patula compartments...

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Opinions of South African dietitians on fistuloclysis as a treatment option for intestinal failure patients

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: A Du Toit --- Division of Human Nutrition, South Africa ABT Boutall --- Department of Surgery, R Blaauw --- Division of Human Nutrition, South Africa

Introduction: Intestinal failure is the consequence of diverse aetiologies and pathophysiological causes. Fistuloclysis is an effective means of nutritional support to selected intestinal failure patients. This study aimed to investigate the management of adult intestinal failure patients in hospitals in...

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Estimated burden of aggregate anthropometric failure among Malawian children

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: M Ziba --- Faculty of Food and Human Sciences, Malawi AA Kalimbira --- Faculty of Food and Human Sciences, Malawi Z Kalumikiza --- Faculty of Food and Human Sciences, Malawi

Background: The prevalence and trends of undernutrition among children below the age of five in Malawi are well known from a conventional (stunting, wasting and underweight) but not aggregate indicator perspective.

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Seasonal diet composition and forage selectivity of Boer goats in a semi-arid gypsophilous grassland

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Miguel Mellado --- Department of Animal Nutrition, Mexico José A Villarreal --- Department of Botany, Mexico Miguel A Medina-Morales --- Department of Animal Nutrition, Mexico José R Arévalo --- Department of Parasitology, Ecology and Genetics, Spain José E García --- Department of Animal Nutrition, Mexico Cesar Meza-Herrera --- University Regional Unit of Arid Zones, Mexico

Botanical and chemical compositions of Boer goat diets, determined with repeated collection of forage samples taken from the goat’s mouth, were studied in a gypsophilous grassland during four seasons of the year. Ten pluriparous goats were used to collect selected...

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Competitive factors of electronic dance music festivals with Social Networking Service (SNS) citizenship behaviour of international tourists

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joon-ho Kim --- Department of Business Administration, South Korea Ki-tai Lee --- Department of Tourism Events and International Conferences, South Korea Bong-ihn Seok --- Commercialization Planning Team, South Korea Hyun-ju Choi --- Department of Cultural & Arts Management, South Korea Seung-hye Jung --- School of Dance, South Korea

This study examined the comparative advantages of prestige service labelling (VIP), online marketing, and image differentiation when applied as marketing strategies to build tourist loyalty as a component of citizenship behaviour. The participants were 220 African tourists attending the World...

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Conceptions of love in Ghana: An exploration among Ghanaian Christians

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Annabella Osei-Tutu --- Department of Psychology, Ghana Vivian A. Dzokoto --- Department of African American Studies, USA Katja Hanke --- Survey Design and Methodology, Germany Glenn Adams --- Department of Psychology, USA Faye Z. Belgrave --- Department of Health Psychology, USA

We explored conceptions of love from the perspective of Ghanaian Christians. Using an ethnographic approach, we interviewed 61 participants (males = 39; females = 22; age range 20 to 70) on their understanding and experiences of love in the context...

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Nesting biology and food habits of the endangered Sakalava Rail Amaurornis olivieri in the Mandrozo Protected Area, western Madagascar

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Yverlin Z Pruvot --- The Peregrine Fund Madagascar Project, Madagascar Lily-Arison René de Roland --- The Peregrine Fund Madagascar Project, Madagascar Gilbert Razafimanjato --- The Peregrine Fund Madagascar Project, Madagascar Marius PH Rakotondratsima --- The Peregrine Fund Madagascar Project, Madagascar Aristide Andrianarimisa --- Department of Zoology and Biodiversity, Faculty of Science, Madagascar Russell Thorstrom --- The Peregrine Fund, USA

We studied the nesting biology and food habits of the endangered and endemic Sakalava Rail Amaurornis olivieri from July to November 2015 in the Mandrozo Protected Area, western Madagascar. Three nesting pairs were observed and their nests were constructed in...

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First genetic data for band-winged grasshoppers (Orthoptera: Acrididae: Oedipodinae) of the Biskra region of Algeria with new records for the country

Item type: Journal Article • Journal: African Zoology • Authors: Abdelhamid Moussi --- Laboratory Valorization and Conservation of Natural Resources, Algeria Lara-Sophie Dey --- General Zoology, Germany Daniel Petit --- UMR 1061 Inra, France Abderrahmane Abba --- Laboratory Valorization and Conservation of Natural Resources, Algeria Robert Klesser --- General Zoology, Germany Martin Husemann --- Centrum für Naturkunde, Germany

DNA barcoding represents an objective tool for fast species identification, especially for taxa for which morphological identification is difficult. One current limitation of barcoding is the lack of reference sequences for many groups. While many European and North American countries...

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An Evaluation Of The Collaborative Coursework-Based Phd Program In Economics And Management Among East African National Universities

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Almas Heshmati --- Department of Economics, Republic of Korea Lars Hartvigson --- Jönköping International Business School, Jönköping University, Sweden

Rapid economic growth in many sub-Saharan African countries and the consolidation of the lower education sector implies that it is becoming increasingly important to meet the demand for higher education institutions. The expansion of existing national research institutions is facing...

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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), Colombia

This 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...

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What affects portfolio yield of microfinance institutions? Evidence from Bangladesh

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Md. Aslam Mia --- Department of Development Studies, Faculty of Economics and Administration, Malaysia Md. Sohel Rana --- Department of Business Strategy and Policy, Faculty of Business and Accountancy, Malaysia

Despite the success and rapid growth of the microfinance industry worldwide, there has been very little sign of any abatement of the high interest rates. High interest rates in microfinance rescind consumer benefits and limit the outreach of microfinance institutions...

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Simultaneous selection for multiple traits in sugarcane breeding populations using logistic regression models

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Marvellous Zhou --- South African Sugarcane Research Institute, South Africa

Simultaneous selection for multiple traits in plant breeding increases the value of cultivars to growers. Visual selection is inefficient while multivariate statistical analysis is too complicated for early stages. The objective of this study was to demonstrate logistic regression models...

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Weed density and biomass are reduced and plant growth and seed yield increased in common bean after solarisation with clear and black plastic

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Elizabeth Ngadze --- Department of Crop Science, Zimbabwe Arnold B Mashingaidze --- Department of Crop Science, Zimbabwe Julia Sibiya --- Department of Crop Science, Zimbabwe

Common bean is highly sensitive to early weed competition, which severely reduces growth and yield. An experiment was carried out in Zimbabwe in the 2002/03 and 2003/04 seasons to assess the effectiveness of solarisation in controlling weeds in beans. Four...

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Performance of free prostate-specific antigen ratio in differentiating between prostatic cancer and benign prostatic lesions at a referral hospital in South Africa

Item type: Journal Article • Journal: South African Family Practice • Authors: Boitumelo Phiri-Ramongane --- Department of Chemical Pathology, South Africa Ayeaye Khine --- Department of Chemical Pathology, South Africa

Background: Prostate cancer is a leading cause of morbidity and mortality in our male population, thus screening initiatives will help to improve outcomes. The current screening marker, total prostate-specific antigen (PSA), is not prostate cancer specific. The development of percentage...

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Conceptualizing and institutions facilitating ‘use’ of innovation indicators in South Africa’s science, technology and innovation policymaking

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Albert Edgar Manyuchi --- Global Change Institute, South Africa

This paper attempts to simplify and conceptualize the meaning of ‘use’ of innovation indicators in science, technology and innovation (STI) policymaking. The paper provides a conceptual framework that guides analysis of innovation indicators ‘use’ in STI policymaking. It maps the...

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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 Africa

This 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...

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Index selection for growth and construction wood properties in Pinus elliottii open-pollinated families in southern China

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Shuainan Zhang --- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Zhejiang Provincial Key Laboratory of Tree Breeding, China Jingmin Jiang --- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Zhejiang Provincial Key Laboratory of Tree Breeding, China Qifu Luan --- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Zhejiang Provincial Key Laboratory of Tree Breeding, China

The initial introduction of Pinus elliottii (PEE) to China occurred in the 1930s, and the planting of this conifer species has now attained close to 3 million ha in the subtropical zone of southern China. A large-scale genetic improvement program...

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A multimetric-index approach using fisheries data to assess fish assemblage structure in relation to salinity gradient in a tropical West African estuary

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Kantoussan --- Université Gaston Berger de Saint-Louis, Senegal JM Ecoutin --- Institut de Recherche pour le Développement (IRD), France R Laë --- Institut de Recherche pour le Développement (IRD), France OT Thiaw --- Institut Universitaire de Pêche et d’Aquaculture (IUPA), Université Cheikh Anta Diop de Dakar, Senegal L Tito de Morais --- Institut de Recherche pour le Développement (IRD), France

This study examines the effects of increasing salinity on fish assemblage structure in the Casamance Estuary, Senegal, using a series of indices. The study data were derived from commercial fishery surveys conducted between April and July 2005. Analysis of within-trophic-group...

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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 Africa

The 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...

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Population abundance and seasonal migration patterns indicated by commercial catch-per-unit-effort of hakes (Merluccius capensis and M. paradoxus) in the northern Benguela Current Large Marine Ecosystem

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JN Kathena --- National Marine Information and Research Centre (NatMIRC), Ministry of Fisheries and Marine Resources, Namibia D Yemane --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa N Bahamon --- Centre d’Estudis Avançats de Blanes (CEAB – CSIC), Spain T Jansen --- National Institute of Aquatic Resources (DTU Aqua), Denmark

We developed generalised additive models (GAMs) to estimate standardised time-series of population abundance indices for assessment purposes and to infer ecological and behavioural information on northern Benguela hakes, Merluccius capensis and M. paradoxus, using haul-by-haul commercial trawl catch-rate data as...

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Perceived HIV-related stigma among university students in South Africa: implications for HIV testing

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Firoza Haffejee --- Department of Basic Medical Sciences, Faculty of Health Sciences, South Africa Brendan Maughan-Brown --- Southern Africa Labour and Development Research Unit, South Africa Thulasizwe Buthelezi --- Department of Basic Medical Sciences, Faculty of Health Sciences, South Africa Ayesha B M Kharsany --- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, University of KwaZulu-Natal, South Africa

HIV-related stigma, and particularly perceived stigma, has a negative impact across the HIV care continuum. This study adds to our understanding of stigma by assessing how perceived stigma varies from one context to another and how such differences are associated...

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Psychosocial characteristics of primary care-seeking long-distance truck drivers in Kenya and associations with HIV testing

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Matthew L Romo --- Department of Epidemiology and Biostatistics & Institute for Implementation Science in Population Health, CUNY Graduate School of Public Health and Health Policy, USA Gavin George --- Health Economics and HIV and AIDS Research Division, South Africa Joanne E Mantell --- HIV Center for Clinical and Behavioral Studies, Department of Psychiatry, Division of Gender, Sexuality, and Health, USA Eva Mwai --- North Star Alliance, Kenya Eston Nyaga --- North Star Alliance, Kenya Jacob O Odhiambo --- North Star Alliance, Kenya Kaymarlin Govender --- Health Economics and HIV and AIDS Research Division, South Africa Elizabeth A Kelvin --- Department of Epidemiology and Biostatistics & Institute for Implementation Science in Population Health, CUNY Graduate School of Public Health and Health Policy, USA

The 90-90-90 strategy from the Joint United Nations Programme on HIV/AIDS (UNAIDS) to end the AIDS epidemic by 2020 includes, as its first goal, to have 90% of all people living with HIV to know their status. Achieving this goal...

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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, Canada

HIV 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...

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Cyanotoxins in small artificial dams in Kenya utilised for cage fish farming – a threat to local people?

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MN Kaggwa --- Department of Limnology and Oceanography, Austria N Straubinger-Gansberger --- Department of Limnology and Oceanography, Austria M Schagerl --- Department of Limnology and Oceanography, Austria

Nine small artificial dams located in different climatic regions of Kenya were studied. The local communities use the stored water for various purposes, such as irrigation, domestic use, watering of livestock and cage fish farming. Such intense use is commonly...

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Human trafficking in the hotel industry in the Netherlands: the fine line between service, responsibility and liability

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Erwin van der Graaf --- Accor Hotels, The Netherlands

Human trafficking is the fastest growing form of organised crime and the biggest source of income for criminals in Europe. Within the prostitution sector, there is a shift towards less visible forms such as hotel prostitution. About half of all...

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Knowledge, attitudes and practices of doctors at Jubilee Hospital, Tshwane District, regarding the syndromic management guidelines for sexually transmitted infections

Item type: Journal Article • Journal: South African Family Practice • Authors: Charles Uchenna --- Department of Family Medicine and Primary Health Care, Sefako Makgatho Health Sciences University, South Africa Indiran Govender --- Department of Family Medicine and Primary Health Care, Sefako Makgatho Health Sciences University, South Africa

Background: Sexually transmitted infections (STIs) are a public health problem globally, but especially so in sub-Saharan Africa. They contribute significantly to the burden of disease in South Africa and are recognised as major contributors to the human immunodeficiency virus (HIV)...

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Health-related subjective well-being with emetophobia

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Anuscha Liebenberg --- Department of Psychology, South Africa Monika dos Santos --- Department of Psychology, South Africa

This study explored subjective well-being among white females with emetophobia disorder (n = 20, married = 50%, age range 20–25). The participants completed self-report measures of gastrointestinal symptoms, as well as the Gastrointestinal Symptom Severity Index and Gastrointestinal Symptoms-Related Subjective...

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Constructions of social selves living with HIV/AIDS: A Jungian phenomenological study

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kathryn Nel --- Department of Psychology, South Africa Olivia Khensai Nkuna --- Department of Psychology, South Africa Saraswathie Govender --- Department of Psychology, South Africa Katlego Joy Hlokwe --- Department of Psychology, South Africa

This study explored sense of social well-being influences on self-identity and the stigma and discrimination among people living with HIV/AIDS (PLWHA). Informants were 15 PLWHA from a rural background in a South African community (female = 87%, age range =...

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Perceived corporate ethical values and organisational justice in relation to employee commitment at a manufacturing company

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jeremy Mitonga-Monga --- Department of Industrial and People Management, South Africa Crystal Hoole --- Department of Industrial and People Management, South Africa

This study investigated the relationship between employees’ perceptions of their organisation’s corporate ethical values and justice and their level of commitment. The study participants were 201 employees of a manufacturing company in the Democratic Republic of Congo (female = 32%%,...

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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 Africa

Patients 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...

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Health and chemical burdens of fish species from polluted and hyper-eutrophic freshwater ecosystems in South Africa

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GM Wagenaar --- Department of Zoology, South Africa IEJ Barnhoorn --- Department of Zoology, South Africa

Three aquatic ecosystems in South Africa, the Hartbeespoort, Klipvoor and Bospoort Dams, are classified as hyper-eutrophic, because of high nutrient loads and chemical pollution. Water and two fish species, Clarias gariepinus and Cyprinus carpio, were collected from these dams to...

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Sources of fish in the ephemeral western iishana region of the Cuvelai–Etosha Basin in Angola and Namibia

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MHT Hipondoka --- Department of Geography, History and Environmental Studies, Namibia BCW van der Waal --- Department of Zoology, South Africa MH Ndeutapo --- Independent Researcher, Angola L Hango --- Ministry of Agriculture, Water and Forestry, Department of Water Affairs and Forestry, Namibia

The triangle between the Kavango and Kunene rivers is drained by the Cuvelai, an ephemeral and deltaic drainage system covering more than 100 000 km2. In good rainfall years, the area becomes populated by fish communities dominated by five species...

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Spodosols in Brazil: distribution, characteristics and diagnostic attributes of spodic horizons

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Andressa R de Menezes --- Agronomy Institute, Department of Soil Science, Brazil Ademir Fontana --- Embrapa Solos, Brazil Lúcia HC dos Anjos --- Agronomy Institute, Department of Soil Science, Brazil

Spodosols are reported in specific environments of Brazil, such as sandy materials in the Amazon and Pantanal basin, sandbanks in the coastal fringes and coastal tableland areas, and a few in high-altitude mountains with quartz-rich rocky substrates. This study describes...

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Effect of graded levels of dietary carbohydrate on growth, feed utilisation and intestinal microbial community structure in dusky kob Argyrosomus japonicus fed a pelleted diet

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NC Mabasa --- Department of Ichthyology and Fisheries Science, South Africa PJ Britz --- Department of Ichthyology and Fisheries Science, South Africa CLW Jones --- Department of Ichthyology and Fisheries Science, South Africa A Nel --- Department of Ichthyology and Fisheries Science, South Africa

The ability to utilise carbohydrates is limited for many predatory marine fishes. Graded levels of dietary carbohydrate (4.1–24.6%) were formulated using pregelatinised maize starch, to determine optimal levels for dusky kob Argyrosomus japonicus, an emerging mariculture finfish for which pelleted...

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Community perceptions and personal accounts of HIV discordance in rural western Kenya

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ken Ondenge --- Kenya Medical Research Institute, Kenya Isdorah Odero --- Kenya Medical Research Institute, Kenya Eucabeth Awuonda --- Kenya Medical Research Institute, Kenya Tereza Omoro --- Kenya Medical Research Institute, Kenya Michael Kibogo --- Kenya Medical Research Institute, Kenya George Otieno --- Kenya Medical Research Institute, Kenya Pauline Ongwena --- Kenya Medical Research Institute, Kenya Deborah A Gust --- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, USA

Among HIV-discordant couples, the literature is sparse regarding issues related to stigma, relationships and coping. Objectives were to explore: 1) perceptions about discordant HIV status; 2) understanding of HIV discordancy; 3) effects of discordancy on couples; and 4) adaptation and...

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Photovoltaic performance prediction in Northern Nigeria using generated typical meteorological year dataset

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Olayinka S. Ohunakin --- The Energy and Environment Research Group (TEERG), Mechanical Engineering Department, Nigeria Muyiwa S. Adaramola --- Faculty of Environmental Sciences and Natural Resource Management, Norway Olanrewaju M. Oyewola --- Department of Mechanical Engineering, Nigeria Richard O. Fagbenle --- Department of Mechanical Engineering, Nigeria Damola S. Adelekan --- The Energy and Environment Research Group (TEERG), Mechanical Engineering Department, Nigeria Jatinder Gill --- Ph.D Research Scholar, IKGPTU, Kapurthala, India Fidelis I. Abam --- Energy, exergy and environment research group (EEERG), Department of Mechanical Engineering, Nigeria

Relevant meteorological files are needed by simulation software to assess the energy performances of buildings or efficiency of renewable energy systems. This paper adopts the Sandia method to generate typical meteorological year (TMY), using a 35-year hourly measured meteorological dataset...

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The Informal Economy in pan-Africa: Review of the Literature, Themes, Questions, and Directions for Management Research

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Katia M. Galdino --- Georgia Southern University, USA Moses N. Kiggundu --- Sprott School of Business, Canada Carla D. Jones --- Sam Houston State University, USA Sangbum Ro --- University of Tampa, USA

The informal economy is an important phenomenon in African countries, accounting for up to 90% of the jobs in the lowest income Sub-Saharan countries such as Central African Republic and the Democratic Republic of the Congo. Management research about Africa,...

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The effect of pre-harvest wind damage on post-harvest quality of ‘Triumph’ persimmon fruit

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Pesanai Zanamwe --- Department of Botany and Biotechnology, South Africa

The post-harvest quality of ‘Triumph’ persimmon fruits grown in the Western Cape, South Africa varies with seasons. Poor post-harvest fruit quality is assumed to be associated with seasons that are characterized by violent wind occurrences. This study was carried out...

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The effect of crushed plastics waste on the structural properties of sandcrete blocks

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: J. O. Akinyele --- Department of Civil Engineering, Nigeria I. O. Toriola --- Department of Civil Engineering, Nigeria

The need for proper disposal of plastic waste has prompted researchers to consider the best way of recycling this non-biodegradable material. This research has looked into the production of sandcrete blocks, using shredded waste plastic in replacing fine aggregate at...

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Factors influencing the production of structural plywood in Tasmania, Australia from Eucalyptus nitens rotary peeled veneer

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: David Blackburn --- Centre for Sustainable Architecture with Wood, School of Architecture and Design, Australia Mario Vega --- Centre for Sustainable Architecture with Wood, School of Architecture and Design, Australia Robert Yong --- Ta Ann Tasmania Pty Ltd, Australia Donovan Britton --- Ta Ann Tasmania Pty Ltd, Australia Gregory Nolan --- Centre for Sustainable Architecture with Wood, School of Architecture and Design, Australia

Harvested logs supplied from five fibre-managed Eucalyptus nitens plantation coupes with different growing environments were assessed for quality and stiffness. Billets extracted from the logs were rotary peeled for veneer. When averaged across the five coupes, 30% of veneer recovered...

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Spatial, temporal and attitudinal dimensions of conflict between predators and small-livestock farmers in the Central Karoo

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Marine Drouilly --- Institute for Communities and Wildlife in Africa, Department of Biological Sciences, South Africa Marion Tafani --- Institute for Communities and Wildlife in Africa, Department of Biological Sciences, South Africa Nicoli Nattrass --- Institute for Communities and Wildlife in Africa, Department of Biological Sciences, South Africa Justin O’Riain --- Institute for Communities and Wildlife in Africa, Department of Biological Sciences, South Africa

Conflict between predators and small-livestock farmers is a global phenomenon adversely impacting the preservation of wildlife, the well-being of livestock and human livelihoods. Such conflict is pervasive in the Karoo region of South Africa but its contemporary history and various...

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Heavy metal concentrations in water and sediment of the Steelpoort River, Olifants River System, South Africa

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Addo-Bediako --- Department of Biodiversity, South Africa K Matlou --- Department of Biodiversity, South Africa E Makushu --- Department of Biodiversity, South Africa

Steelpoort River has been adversely affected by human activities in the catchment. Water and sediment quality of the river was assessed in 2015. The concentrations of some of the metals in water were found to be high and exceeded the...

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Institutional Risk and Firm Performance in Africa: The Moderating Role of Corruption Control

Item type: Journal Article • Journal: Africa Journal of Management • Authors: David B. Zoogah --- Williams College of Business, USA

How does institutional risk influence firm performance in Africa? While most studies focus on formal institutional risk, I argue that informal institutional risks are equally influential. Consistent with that view I use informal institutions theory and multilevel techniques to analyze...

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The relationship between social support and anxiety amongst children living with HIV in rural northern Namibia

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Fred Besthorn --- Wichita State University, USA Eveline N Kalomo --- Wichita State University, USA Elizabeth Lightfoot --- University of Minnesota, USA Minli Liao --- Morgan State University, USA

This study examined how HIV-related stigma and social support are related to anxiety among children living with HIV in rural northern Namibia. This is a cross-sectional exploratory study with a sample of 132 caregiver–child dyads. Our study found that higher...

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Employees’ experiences of the stigma of HIV in a retail organisation: secrecy, privacy or trust?

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kgope P Moalusi --- Industrial and Organisational Psychology, South Africa

This study unveiled the participants’ experiences of HIV-related stigma in a retail organisation located in the Western Cape province of South Africa. A qualitative approach was adopted because of its appropriateness for unravelling subjective phenomena such as employees’ experiences of...

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“Containing” tuberculosis, perpetuating stigma: the materiality of N95 respirator masks

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Kate Abney --- School for International Training, USA

This paper analyses the role of the N95 respirator mask distributed by state-funded treatment programmes to patients who are undergoing treatment for different forms of tuberculosis (TB). Although mask-wearing protocol aims to physically “contain” TB, and thus stem the airborne...

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Retention of festival volunteers: Management practices and volunteer motivation

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Diane Zievinger --- Stenden Hotel Management School, The Netherlands Frans Swint --- Stenden Hotel Management School, The Netherlands

Many volunteers in different festival organisations within the hospitality industry begin with great excitement, but slowly lose interest. This might be due to poor volunteer management practices that result in decreased motivation among volunteers, and with the consequences of them...

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Long-term physico-chemical and faunal changes in a small, rural South African estuary

Item type: Journal Article • Journal: African Zoology • Authors: M Kajee --- Department of Biological Sciences and Centre for Invasion Biology, South Africa CL Griffiths --- Department of Biological Sciences and Centre for Invasion Biology, South Africa SJ Lamberth --- Fisheries Management, Department of Agriculture, South Africa

The Palmiet Estuary is a small, rural estuary in the Western Cape that only closes briefly during dry summers. The system was previously surveyed during 1979 to 1980 and we repeated the survey in April 2015 (mouth closed) and September...

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The autumn occurrence and spatial distribution of cetaceans in the waters of Mauritania during a geophysical survey in 2012

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Russell --- , United Kingdom A Sánchez-Cabanes --- , United Kingdom M Nimak-Wood --- , United Kingdom

This study aimed to identify the occurrence and spatial distribution of cetaceans in Mauritanian waters (eastern Atlantic). A geophysical survey was conducted over 92 days between September and December 2012. Over 967 km was surveyed, with 1 017 h of...

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Performance of Drought Tolerant Maize Varieties under Water Harvesting Technologies in the Coastal Region of Kenya

Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: M.B. Muli --- Kenya Agricultural and Livestock Research Organization, Kenya D. Kengo --- Kenya Agricultural and Livestock Research Organization, Kenya A. Mzingirwa --- Kenya Agricultural and Livestock Research Organization, Kenya R. Musila --- Kenya Agricultural and Livestock Research Organization, Kenya

The average annual rainfall in coastal Kenya is 450–700 mm per annum in most places while the total annual evapotranspiration is 1200–1800 mm. In arid and semi-arid lands (ASALs), farmers grow maize varieties for medium to high rainfall zones without considering the...

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Efforts Toward Improving Maize Yields on Smallholder Farms in Uasin Gishu County, Kenya, through Site-specific, Soil-testing-based Fertiliser Recommendations: A Transdisciplinary Approach

Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Arusey Chebet --- University of Eldoret, Kenya Njoroge Ruth --- University of Eldoret, Kenya Otinga A. Nekesa --- University of Eldoret, Kenya Wilson Ng’etich --- University of Eldoret, Kenya Koech Julius --- University of Eldoret, Kenya Roland W. Scholz --- Danube University, Austria

This study evaluated the effects of site-specific, soil-testing-based fertiliser recommendations on maize yields using the transdisciplinary (TD) process. The TD process utilizes knowledge from science and practice. Farmers, extension officers, local financial institutions, and other practitioners collaborated with local scientists...

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Effects of temporal factors, nesting microhabitat and nest position on the survival of passerine nests in a Tunisian oasis habitat

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jihen Boukhriss --- Unité de recherche «Ecologie de la faune terrestre» (UR17ES44), Faculté des Sciences de Gabès, Tunisia Slaheddine Selmi --- Département des Sciences de la Vie, Faculté des Sciences de Gabès, Tunisia

Identifying the ecological factors shaping bird nest survival is essential for understanding bird population dynamics, as well as for conservation purposes. Using data obtained by monitoring natural bird nests in one oasis in south-eastern Tunisia, we fitted logistic exposure models...

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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 Africa

Diuraphis 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...

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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, Botswana

Hooded 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...

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Roosting requirements of Helmeted Guineafowl Numida meleagris on Highveld grain and livestock farms with alien tree groves, Gauteng province, South Africa

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Johann H van Niekerk --- Department of Environmental Sciences, College of Agriculture and Environmental Sciences, South Africa

This study describes the relationship between Helmeted Guineafowl Numida meleagris and invasive alien trees on livestock and maize farms south-east of Johannesburg, Gauteng province, South Africa. The dependence of the birds on alien trees affects strategies for the removal of...

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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 Africa

Several 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...

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The discourse of institutional change in the Zambian microfinance sector

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Juliana Siwale --- Nottingham Business School, UK Jonathan Kimmitt --- Newcastle University Business School, UK Bruce Lamont

This paper investigates the discourse of key actors instigating institutional change in the Zambian microfinance sector. It draws from the institutional story of Zambia, which has experienced regulatory and legislative flux since drafting its first microfinance act in 2006. Building...

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Navigating competing institutional logics in a developing economy

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Kassa Woldesenbet Beta --- Strategic Management and Marketing, UK John Storey --- People and Organization, UK Bruce T. Lamont

This paper examines how senior managers in a developing economy, Ethiopia, navigate between, and draw upon, the competing logics of ‘state’ and ‘market’ when seeking to explain their firm’s business strategies. This fault-line is especially critical in such contexts. The...

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Remediation of salt-affected soil by natural and chemical amendments to improve berseem clover yield and nutritive quality

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Zainab Mohamed Abd El-Naby --- Forage Research Department, Egypt Wafaa Abd El-Karim Hafez --- Soil, Water and Environment Research Institute, Agriculture Research Center, Egypt Hanan Ahmed Hashem --- Botany Department, Faculty of Science, Egypt

Salinity is a major problem affecting crop production worldwide. The potential of different soil amendments (sulphur, gypsum, compost, and combination of gypsum, compost and sulphur) and two plant-growth stimulators (potassium silicate and calcium carbonate nanoparticles) to alleviate the harmful effects...

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The influence of phosphorus and calcium application rates on the mineral composition of the perennial legume Macrotyloma axillare

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Karina Batista --- Instituto de Zootecnia, Brazil Luciana Gerdes --- Instituto de Zootecnia, Brazil Alessandra Aparecida Giacomini --- Instituto de Zootecnia, Brazil Waldssimiler Teixeira de Mattos --- Instituto de Zootecnia, Brazil Ivani Pozar Otsuk --- Instituto de Zootecnia, Brazil

The response of legumes to the supply of either phosphorus (P) or calcium (Ca) alone has been extensively investigated but no prior studies have evaluated their combinations in the perennial legume Macrotyloma axillare (Macrotyloma legume). This study assessed the mineral...

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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 Africa

Although 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...

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HIV prevalence and related behaviours of older people in Botswana — secondary analysis of the Botswana AIDS Impact Survey (BAIS) IV

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kabo Matlho --- School of Public Health, Australia Madeleine Randell --- School of Public Health, Australia Refelwetswe Lebelonyane --- Ministry of Health, Botswana Joseph Kefas --- National AIDS Coordinating Agency, Botswana Tim Driscoll --- School of Public Health, Australia Joel Negin --- School of Public Health, Australia

The focus of HIV interventions in Botswana, a country with the second highest prevalence of HIV in the world, remains targeted at those aged 15–49 years despite a growing cohort of older people living with the disease — driven largely...

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Association between HIV/AIDS knowledge and stigma towards people living with HIV/AIDS in Botswana

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sandra B Letshwenyo-Maruatona --- Institute of Health Sciences-Gaborone, Botswana Montlenyane Madisa --- Botswana College of Distance and Open Learning, Botswana Thokgamo Boitshwarelo --- Institute of Health Sciences-Gaborone, Botswana Botho George-Kefilwe --- Institute of Health Sciences-Gaborone, Botswana Caroline Kingori --- Department of Social and Public Health, USA Gillian Ice --- Department of Social Medicine, Heritage College of Osteopathic Medicine and College of Health Sciences and Professions, USA Joseph A Bianco --- Department of Social Medicine, USA Marape Marape --- Marape & Marape Family Medical and Public Health Clinic, Botswana Zelalem T Haile --- Department of Social Medicine, Heritage College of Osteopathic Medicine, USA

In Botswana, an estimated 350 000 people live with HIV/AIDS. HIV/AIDS testing rates are low, suggesting that many other people remain undiagnosed. Stigma related to HIV/AIDS is prevalent and contributes to low testing rates and under-diagnosis of the virus. Identifying...

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The influence of marital status on HIV infection in an HIV hyperendemic area of rural South Africa, 2000–2017

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Boikhutso Tlou --- School of Nursing and Public Health, South Africa

Marital status is one of the factors whose impact on HIV infection has always been studied but contradictory findings have been reported. The drastic changes in marriage patterns in South Africa influences the role of marital status on HIV infection...

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Foreign direct investment flows and domestic investment in China: A multivariate time series analysis

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Usman Ali --- Faculty of Management and Economics, China Jian-Jun Wang --- Faculty of Management and Economics, China Veronica Patricia Yanez Morales --- Faculty of Management and Economics, China Meng-Meng Wang --- Darla Moore School of Business, USA

This paper explores the effects of inward and outward foreign direct investment (FDI) on domestic investment in China using annual time series data over the period of 1982–2016. The empirical analysis is performed using ARDL bound testing procedure and fully...

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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 Africa

In 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...

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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, Kenya

Focusing 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...

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Megabenthos and benthopelagic fishes on Southeast Atlantic seamounts

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: OA Bergstad --- Institute of Marine Research (IMR), Norway M Gil --- Departamento de Ecología y Biología Animal, Edificio de Ciencias Experimentales, Spain ÅS Høines --- Institute of Marine Research (IMR), Norway R Sarralde --- Instituto Espanol de Oceanografia, Centro Oceanografico de Canarias, 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, Angola F Ramil --- Departamento de Ecología y Biología Animal, Edificio de Ciencias Experimentales, Spain P Clerkin --- Pacific Shark Research Center (PSRC), Moss Landing Marine Laboratories, United States G Campanis --- South East Atlantic Fisheries Organisation (SEAFO) Secretariat, Namibia

In a descriptive study of megafauna of several Southeast Atlantic seamounts, multiple video-transects on upper slopes and summits documented the occurrence of benthic invertebrate taxa, primarily corals, regarded as indicators of vulnerable marine ecosystems (VMEs) as defined in international guidelines...

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Spatial considerations when monitoring reef fishes

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Parker --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa H Winker --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa ATF Bernard --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa MKS Smith --- South African National Parks, Rondevlei Scientific Services, South Africa A Götz --- South African Environmental Observation Network (SAEON), South Africa

Spatial dependence can obscure relationships between response and explanatory variables because of structuring within the residuals reducing variance and biasing coefficient estimates. Here, we highlight the influence of the spatial component, in the presence of spatial dependence, on abundance trends...

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Adult weight measurement: decoding the terminology used in literature

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Christen Renée Lahner --- Department of Human Nutrition and Dietetics, South Africa

There are various types of names given to describe the adult weight measurement. The most commonly used terms (actual body weight, estimated body weight, ideal body weight and adjusted body weight) have been defined and summarized to assist in their...

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Undernutrition among children under five in the Bandja village of Cameroon, Africa

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Léonie Dapi Nzefa --- Department of Public Health, Cameroon Francisca Monebenimp --- Department of Public Health, Cameroon Christofer Äng --- Department of Clinical Medicine, Umeå, Sweden

Background: Sub-Saharan Africa has a long history of struggling with child undernutrition. The prevalence of undernutrition is still high and knowledge about this public health problem and the underlying causes is essential for children’s health.

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Correlates of perceived HIV-related stigma among HIV-positive pregnant women in rural Mpumalanga province, South Africa

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Shandir Ramlagan --- HIV/Aids, STI and TB Unit, Human Sciences Research Council, South Africa Sibusiso Sifunda --- HIV/Aids, STI and TB Unit, Human Sciences Research Council, South Africa Karl Peltzer --- HIV/Aids, STI and TB Unit, Human Sciences Research Council, South Africa Jenny Jean --- Miller School of Medicine, USA Robert A.C. Ruiter --- Department of Work and Social Psychology, The Netherlands

The study investigated correlates of perceived HIV-related stigma among 673 HIV-positive women from rural Mpumalanga province, South Africa (mean age 28 years old, SD = 5.73 years). The women completed measures of HIV-related stigma experience and related personal factors. Following...

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Employee engagement at a higher education institution in South Africa: Individual, team and organisational levels

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Tinashe Ndoro --- Management Department, South Africa Nico Martins --- Department of Industrial and Organisational Psychology, South Africa

We examined the levels of employee engagement among staff members at a higher education institution in South Africa at the individual, team, and organisational levels. The participants (N = 202) completed a validated measure of employee engagement (females = 62.4%;...

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Ovarian activity and plasma sex steroid levels of Distichodus antonii in relation to environmental conditions in the upper basin of the Congo River

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JS Osombause --- Research Unit in Environmental and Evolutionary Biology, Belgium SNM Mandiki --- Research Unit in Environmental and Evolutionary Biology, Belgium JA-P Ulyel --- Département d’Hydrobiologie, Congo J-C Micha --- Research Unit in Environmental and Evolutionary Biology, Belgium P Kestemont --- Research Unit in Environmental and Evolutionary Biology, Belgium

Distichodus antonii is an endemic fish species of the Congo River basin in which the stocks of wild populations are threatened by overfishing pressure. Knowledge of its reproductive biology would be useful in consideration of conservation and management options for...

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Seasonal occurrence and ecological aspects of Afrodiplozoon polycotyleus (Monogenea: Diplozoidae) from the gills of three cyprinids from the Nwanedi-Luphephe dams, South Africa

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: EM Mbokane --- Aquaculture Research and Development, South Africa J Theron --- Aquaculture Research Unit, University of Limpopo, South Africa WJ Luus-Powell --- Department of Biodiversity, South Africa

The effect of seasonal changes and ecological aspects of Afrodiplozoon polycotyleus (Paperna, 1973) collected on Labeobarbus marequensis (Smith, 1841), Enteromius trimaculatus (Peters, 1852) and Enteromius radiatus (Peters, 1853) was investigated from January to October 2008. Fish were collected at the...

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Modelling expected trout ranges under current and future water temperature regimes in the Eastern Cape, South Africa

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NA Rivers-Moore --- Centre for Water Resources Research, South Africa BR Ellender --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa OLF Weyl --- Center for Invasion Biology, SAIAB, South Africa

Different values have resulted in conflicts between anglers and conservation lobbies in the management of trout in South Africa. Key to the conflict is the demarcation of boundaries to areas in which brown trout Salmo trutta and rainbow trout Oncorhynchus...

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Listening for Johannesburg: secret affinities, wondrous resonances

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Brett Pyper --- Wits School of Arts, South Africa

Amongst the diverse music scenes that have emerged during the unfinished transition from apartheid, those that have formed within voluntary associations of jazz lovers remain a notable, if fractured and only partially audible feature of city culture around Johannesburg and...

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Analyses of mathematical models for city population dynamics under heterogeneity

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: O.C. Collins --- Institute of Systems Science, South Africa T.S. Simelane --- Institute of Systems Science, South Africa K.J. Duffy --- Institute of Systems Science, South Africa

In this study, a mathematical model which takes heterogeneity into account is presented to describe city population dynamics. Initial insight is gained by qualitative analyses of a homogeneous version of this model. To understand the population dynamics of South African...

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More than eating dirt: a review of avian geophagy

Item type: Journal Article • Journal: African Zoology • Authors: Colleen T Downs --- School of Life Sciences, South Africa Ian P Bredin --- School of Life Sciences, South Africa Peter D Wragg --- School of Life Sciences, South Africa

Geophagy, the ingestion of earth varying in particle size from stones to soils rich in clay, is a relatively widespread behaviour across avian taxa. We reviewed its occurrence in birds and its hypothesised adaptive functions in birds. Of the ∼30...

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Feasibility of HIV self-testing: experiences of people seeking HIV testing in rural and urban KwaZulu-Natal, South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Charlene Harichund --- Centre for the AIDS Programme of Research in South Africa, South Africa Pinky Kunene --- Centre for the AIDS Programme of Research in South Africa, South Africa Mosa Moshabela --- School of Nursing and Public Health, South Africa

HIV status awareness is a rate limiting step in HIV treatment and prevention initiatives aimed at addressing the global HIV epidemic. Uptake of HIV testing remains suboptimal despite global campaigns aimed at improving uptake. HIV self-testing (HIVST) displays the potential...

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Perceptions of school principals and experiences of disclosure of teachers living with HIV

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Zvisinei Moyo --- Department of Educational Leadership and Management, South Africa Juliet Perumal --- Department of Educational Leadership and Management, South Africa

The aim of this study was to explore the perceptions of school principals and the experiences of disclosure amongst teachers living with HIV. Due to HIV/AIDS-related stigma being prevalent in many societies today, many infected people would rather not disclose...

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Progress research on earth construction: Cast earth with glass wastes, cement kiln bypass dust and activated clay

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Hanaa Youssef Ghorab --- Chemistry Department, Faculty of Science, Egypt Amr Said Meawad --- Chemistry Department, Faculty of Science, Egypt Mehmet Yildirim --- Customer Support Department, Suez Cement Company, Egypt Ahmed Hassan Eied Hassan --- Chemistry Department, Faculty of Science, Egypt

A sandy soil was stabilized by 10% CEM I 42.5 R. Up to 50% of the cement was replaced by waste glass powder, cement kiln bypass dust or activated clay. Polynapthalene sulfonate superplasticizer was used to increase the fluidity of...

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Socio-economic and Institutional Factors Influencing Uptake of Improved Sorghum Technologies in Embu, Kenya

Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: EL Chimoita --- Department of Agricultural Economics, Kenya CM Onyango --- Department of Crop Science and Protection, Kenya JP Gweyi-Onyango --- Department of Agricultural Science and Technology, Kenya JW Kimenju --- Department of Crop Science and Protection, Kenya

Farmers’ socio-economic status and institutional support play a complementary role in influencing adoption of various improved agricultural value chain technologies. Despite considerable research efforts towards improving sorghum production and commercialisation to improve farmers’ socio-economic wellbeing in Kenya, a marginal number...

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Seasonal variation of livestock feed resources in semi-arid and humid environments of Rwanda

Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Mupenzi Mutimura --- University of KwaZulu-Natal, South Africa Cyprian Ebong --- Rwanda Agriculture Board (RAB), Rwanda Idupulapati M Rao --- International Centre for Tropical Agriculture (CIAT), Colombia Ignatius V Nsahlai --- University of KwaZulu-Natal, South Africa

In most of sub-Saharan African countries, including Rwanda, the predominant agricultural production is from a mixed-crop-livestock farming system, because of small size land holding. The objective of this study was to assess the seasonal availability of livestock feed resources in...

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Assessment of consumer preference traits of indigenous sheep type and market channels in Bensa District, Southern Ethiopia

Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: H Kenfo --- Southern Agricultural Research Institute, Ethiopia Y Mekasha --- International Livestock Research Institute, Ethiopia Y Tadesse --- Haramaya University, Ethiopia

This study was carried out in Bensa district of Sidama Zone, southern Ethiopia. The objective of this study was to assess consumer preference traits of indigenous sheep type in the study area. Data were analysed using SPSS versions 16. There...

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“From war to peace”: Military festival visitors’ quality-of-life

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Dewald Venter --- Department of Hospitality, Tourism and PR Management, Human Sciences, South Africa Stefan Kruger --- WorkWell Research Unit, South Africa

The Voortrekker Monument Military festival is one of several military festivals held in South Africa. This study sought to determine the travel motives and life domain effects on the quality-of-life of visitors. Data were gathered from 330 visitors on their...

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An integrative review of South Africa’s approach to victim support

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marelize Schoeman --- Department of Criminology and Security Science, South Africa

This integrative review seeks to consider the evidence on how crime victims’ rights are served within South Africa’s criminal justice system. Victims view criminal proceeding as the means through which justice for the harms they suffered can be obtained. Such...

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Delayed disclosure of disability related needs: Experiences of “at-risk” students in a South African university

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Samukelisiwe Mngomezulu --- School of Education, South Africa

The present study explored disability disclosure influences on university students, and specifically the types of supports the students perceive to need. Informants were three differently abled students (female = 1 and males = 2). They participated in semi-structured and focus...

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Exploring procedural justice and police legitimacy in South Africa

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- Department of Criminology, South Africa

Perceptions of legitimacy are at the foundation of public mandates underlying criminal justice institutions, their legal authority, and public cooperation. This study explored perceptions of South African policing by members of a historically disadvantaged community, in terms of the procedural...

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Impact of land use on woody aboveground biomass in Miombo woodlands of western Zambia – comparison of three allometric equations

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Priscilla Sichone --- Institute for Plant Science and Microbiology, University of Hamburg, Germany Ute Schmiedel --- Institute for Plant Science and Microbiology, University of Hamburg, Germany Jens Oldeland --- Institute for Plant Science and Microbiology, University of Hamburg, Germany Norbert Jürgens --- Institute for Plant Science and Microbiology, University of Hamburg, Germany

Globally, the intensification of land use for agriculture, timber and fuel is considered the leading threat to the diversity and biomass of forests and woodlands. To suggest management options, it is important to understand the patterns and drivers of diversity,...

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Using acoustic wave velocity to select fibre-managed plantation Eucalyptus nitens logs for laminated veneer lumber products

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: David Blackburn --- Centre for Sustainable Architecture with Wood (CSAW), School of Architecture and Design, Australia Mario Vega --- Centre for Sustainable Architecture with Wood (CSAW), School of Architecture and Design, Australia Gregory Nolan --- Centre for Sustainable Architecture with Wood (CSAW), School of Architecture and Design, Australia

The aims and objectives of this study were to investigate the potential to predict laminated veneer lumber (LVL) stiffness from wood properties measured on trees and logs, and determine variation in log, wood and veneer properties as a function of...

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Grandidierella lignorum (Amphipoda: Aoridae) can be used for assessing the toxicity of sediment with varying grain sizes and low organic content

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NF Masikane --- Department of Zoology, South Africa BK Newman --- Coastal Systems Research Group, Natural Resources and the Environment, South Africa UM Scharler --- School of Life Sciences, South Africa

Sediment grain size and organic matter influences the distribution of macrozoobenthic fauna. These parameters also influence bioavailability and toxicity of contaminants in aquatic systems, because sediment is the sink and source for most contaminants. These sediment parameters therefore potentially confound...

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Tradition and innovation: Between dynamics and tensions

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Maria de Fátima Ferreiro --- ISCTE-IUL, Dinamia’CET-IUL, Portugal Fayaz Ahmad Sheikh --- Centre for Studies in Science Policy (CSSP), India Merli Reidolf --- Tallin University of Technology, Estonia Cristina de Sousa --- Univ Portucalense, Research on Economics, Management and Information Technologies - REMIT & Dinamia’CET-IUL, Portugal Saradindu Bhaduri --- Centre for Studies in Science Policy (CSSP), India

Tradition is certainly not new to the domain of innovation research. However, the interplay between the two has attracted less nuanced attention than it should have. Drawing on institutional theory, the purpose of this paper is to explore the dynamics...

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Optimising the learning environment for undergraduate students in the Department of Family Medicine at Sefako Makgatho Health Sciences University

Item type: Journal Article • Journal: South African Family Practice • Authors: I Govender --- Centre for Health Professions Education, South Africa M De Villiers --- Centre for Health Professions Education, South Africa

Background: An important determinant of a medical student's behaviour and performance is the department's teaching and learning environment. Evaluation of such an environment can explore methods to improve educational curricula and optimise the academic learning environment.

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Overcoming obstacles to a truly global psychological theory, research, and praxis in Africa

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Seth Oppong --- Department of Psychology,

In African countries, psychology as it is taught, researched, and practised contributes to epistemic injustice and epistemological violence while depriving Africans of epistemic agency. This is largely because psychology has remained and continues to remain Eurocentric. However, the continual Eurocentric...

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Do challenges still exist amongst HIV/AIDS patients in managing their condition? A cross-sectional study of 297 participants in the Ethekwini Metro of KwaZulu-Natal, South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Panjasaram Naidoo --- Pharmaceutical Sciences, School of Health Sciences, South Africa Rayanta Premdutt --- Pharmaceutical Sciences, School of Health Sciences, South Africa

Background: South Africa has the largest HIV/AIDS epidemic globally and the largest anti-retroviral treatment (ART) programme in the world, yet HIV incidence is still chronically high in South Africa, especially in KwaZulu-Natal province (KZN). In light of this, a study...

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Sex work among female workers in the traditional mining sector in Mali – results from the ANRS-12339 Sanu Gundo cross-sectional study in 2015

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Cheick Haïballa Kounta --- Aix Marseille University, France Luis Sagaon-Teyssier --- Aix Marseille University, France Hubert Balique --- Aix Marseille University, France Fodié Diallo --- ARCAD Sida, Mali Nikos Kalampalikis --- University Lyon 2, France Marion Mora --- Aix Marseille University, France Michel Bourrelly --- Aix Marseille University, France Marie Suzan-Monti --- Aix Marseille University, France Bruno Spire --- Aix Marseille University, France Bintou Dembélé Keita --- ARCAD Sida, Mali

Female sex workers (FSW) in mining sites are considered to be at very high risk of HIV infection. We aimed to characterize FSW at the Kôkôyô artisanal gold mining site in Mali, and identify factors associated with sex work using...

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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 Africa

Although 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...

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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 Africa

Afro-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...

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Age classes of developing Red-necked Spurfowl Pternistis afer based on plumage, morphology and behaviour

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Johann H van Niekerk --- Department of Environmental Sciences, College of Agriculture and Environmental Sciences, South Africa

This paper describes the plumage and morphology development of 11 age classes of Red-necked Spurfowl Pternistis afer to assist with field observations. Sixteen spurfowl were marked with coloured leg rings in the Cannon Rocks Holiday Resort, Eastern Cape, South Africa...

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Disc pasture meter calibration to estimate grass biomass production in the arid dunefield of the south-western Kalahari

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Christiaan J Harmse --- Eiland Research Station, Northern Cape Department of Agriculture, Land Reform and Rural Development, South Africa Niels Dreber --- Department of Ecosystem Modelling, Faculty of Forest Sciences and Forest Ecology, Germany Winston SW Trollope --- Working on Fire International, South Africa

The disc pasture meter (DPM) is a tool that is widely used to estimate aboveground standing grass biomass (ASB) in a rapid and non-destructive manner. Depending on the species composition, rangeland condition and local climate, available DPM calibrations may fail...

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Where have foreign banks in Nigeria gone? Market structure, competitive intensity and the capabilities of Nigeria banks

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Lilac Nachum --- International Business Department, USA Chris Ogbechie --- Strategic Management Department, Nigeria

Privately-owned Nigerian banks hold 94% of Nigeria banking assets, the world's second largest share of local ownership. Theoretical explanations for the dominance of local firms related to liabilities of foreignness do not explain this phenomenon, as foreign banks do not...

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Management of financial institutions in Africa: Emerging themes and future research agenda

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Ifedapo Adeleye --- Human Resources Management Program, USA Yaw A. Debrah --- School of Management, UK Lilac Nachum --- Zicklin School of Business, Baruch College, USA

The rise of the financial services sector in Africa over the last decade or so has been phenomenal, marked by significant advances in mobile money, and growing financial inclusion and profitability. However, there are significant gaps in the academic literature...

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Morphology and functional ontogeny of the digestive tract of Barbus altianalis larvae

Item type: Journal Article • Journal: African Zoology • Authors: Cassius Aruho --- National Fisheries Resources Research Institute, Uganda John K Walakira --- National Fisheries Resources Research Institute, Uganda Fred Bugenyi --- Department of Biological Science, Uganda Justus Rutaisire --- National Agriculture Research Organisation, Uganda Benjamin J Reading --- Department of Applied Ecology, United States

The ontogenetic development of digestive structures in Ripon barbel (Barbus altianalis) larvae was investigated using standard histological and histochemical procedures from hatching up to 60 days after hatching (DAH). The study was conducted to determine the best period of exogenous...

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Spatial distribution and breeding territories of Bonelli’s Eagle Aquila fasciata in the western Anti-Atlas Mountains, Morocco

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ali Irizi --- Département de Zoologie et Ecologie Animale, Institut Scientifique, Morocco Mohamed Aourir --- Laboratory « Biodiversité et fonctionnement des écosystèmes », Department of Biology, Faculty of Sciences, Morocco Mohammed Znari --- Laboratoire « Biodiversité et Dynamique des Ecosystèmes», Faculté des Sciences – Semlalia, Morocco Mohamed Aziz El Agbani --- Département de Zoologie et Ecologie Animale, Institut Scientifique, Morocco Abdeljebbar Qninba --- Département de Zoologie et Ecologie Animale, Institut Scientifique, Morocco

The North African population of Bonelli’s Eagle Aquila fasciata (Vieillot, 1822) is limited to the south by the northern fringe of the Sahara Desert. This study provides the first data on the spatial distribution and density of breeding Bonelli’s Eagles...

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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, Kenya

We 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...

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Institutional logics and sustainability of selected small and medium-sized audit firms

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Carla Coetzee --- Department of Auditing, South Africa Karin Barac --- Department of Auditing, South Africa Joanne Seligmann --- Department of Financial Management, South Africa

Although an abundance of research exists concerning larger audit firms, studies on small-scale audit firms are scarce. This study investigates how small and medium-sized audit firms deal with professional and commercial logic for sense-making and legitimisation of their strategies and...

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Diet of catfish Clarias buthupogon Sauvage, 1879 (Clariidae) in two rivers in the Yoko Reserve, Tshopo Province, Democratic Republic of the Congo

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RB Mahamba --- Department of Phytotechnics, Democratic Republic of the Congo JN Ndjaki --- Department of Hydrobiology, Democratic Republic of the Congo AB Kankonda --- Department of Hydrobiology, Democratic Republic of the Congo J-C Micha --- Environmental Biology Research Unit (URBE), Belgium

The diet of the catfish, Clarias buthupogon, was studied in two forest rivers in the Yoko Reserve, the Yoko and Biaro Rivers, from September 2008 to August 2009. Gill nets, long lines and traditional traps were used to catch the...

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Structure and diversity of the Araucaria forest in southern Brazil: biotic homogenisation hinders the recognition of floristic assemblages related to altitude

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Lucia Sevegnani --- Departamento de Ciências Naturais, Brazil André L de Gasper --- Departamento de Ciências Naturais, Brazil Arthur V Rodrigues --- Programa de Pós-Graduação em Engenharia Florestal, Brazil Débora V Lingner --- Departamento de Engenharia Florestal, Brazil Leila Meyer --- Programa de Pós-graduação em Ecologia e Evolução, Brazil Alexandre Uhlmann --- Embrapa Florestas, Brazil Laio Z Oliveira --- Departamento de Engenharia Florestal, Brazil Alexander C Vibrans --- Programa de Pós-Graduação em Engenharia Florestal, Brazil

Forest structure and species abundance may respond to environmental features triggered by geomorphology, altitude gradients and human impacts. In this study we investigated if data from a large-area inventory would support the segregation of floristic assemblages related to altitude-oriented forest...

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Exploring indicators of subjective well-being for first-year university students

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Bianca Botha --- WorkWell Research Unit, Faculty of Economic and Management Sciences, South Africa Karina Mostert --- WorkWell Research Unit, Faculty of Economic and Management Sciences, South Africa Melissa Jacobs --- WorkWell Research Unit, Faculty of Economic and Management Sciences, South Africa

This study aimed to explore indicators of subjective well-being among first-year university students attending a South African university (N = 11; female = 6, black = 6, age range = 19 to 22). Participants shared their experiences of university life by participating in group sessions using the Mmogo...

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Job security and workaholism among non-permanent workers: The moderating influences of corporate culture

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joon-ho Kim --- Department of Business Administration, South Korea Seung-hye Jung --- School of Dance, South Korea Soo-yun Yang --- Department of Cultural Contents, South Korea Hyun-ju Choi --- Department of Cultural & Arts Management, South Korea

The present study examined aspects of job security, leadership risk (corporate-centric management style, short-term performance-orientedness, and subordinate authoritarianism), emotional exhaustion, and workaholism among 1 009 casual foreign workers from multicultural families living in South Korea. The nationalities of the casual...

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Gestational trophoblastic disease managed at Grey's Tertiary Hospital: a five-year descriptive study

Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Bongumusa S Makhathini --- Grey’s Hospital, Department of Obstetrics and Gynaecology, Faculty of Health Sciences, South Africa Greta Dreyer --- Gynaecologic Oncology Unit, Department of Obstetrics and Gynaecology, South Africa Eckhart J Buchmann --- Department of Obstetrics and Gynaecology, South Africa

Background: A study was undertaken to describe the outcomes of gestational trophoblastic disease (GTD) and to determine the influence of antecedent pregnancy, the distance travelled by patients to Grey's Hospital (GH), and HIV status on the disease and clinical outcomes.

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The state of costing research for HIV interventions in sub-Saharan Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Drew B Cameron --- Health Policy and Management, USA Mohamed Mustafa Diab --- Institute for Health Policy Studies, USA Lauren N Carroll --- Institute for Health Policy Studies, USA Lori A Bollinger --- Avenir Health, USA Willyanne DeCormier Plosky --- Avenir Health, USA Carol Levin --- Department of Global Health, USA Benjamin Herzel --- Institute for Health Policy Studies, USA Elliot Marseille --- Health Strategies International, USA Lily Alexander --- Department of Global Health, USA Sergio Bautista-Arredondo --- Division of Health Economics and Health Systems Innovations, Mexico Carlos Pineda-Antunez --- Division of Health Economics and Health Systems Innovations, Mexico Diego Cerecero-García --- Division of Health Economics and Health Systems Innovations, Mexico Gabriela B Gomez --- London School of Hygiene and Tropical Medicine, United Kingdom William H Dow --- Health Policy and Management, USA James G Kahn --- Institute for Health Policy Studies, USA

The past decade has seen a growing emphasis on the production of high-quality costing data to improve the efficiency and cost-effectiveness of global health interventions. The need for such data is especially important for decision making and priority setting across...

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Smart cascades: using cost analysis to improve HIV care and treatment interventions to achieve global 95–95–95 goals

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Catherine Barker Cantelmo --- Health Policy Plus Project (HP+), USA Bryant Lee --- Health Policy Plus Project (HP+), USA Arin Dutta --- Health Policy Plus Project (HP+), USA

Background: HIV programmes are achieving significant scale, even as external financing plateaus. Maximising achievement from identification to viral suppression is key to epidemic control and reaching global 95-95-95 goals. Cost and technical efficiency analyses can help programs understand why losses...

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The costs of home-based HIV testing and counselling in sub-Saharan Africa and its association with testing yield: a literature review

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Katharina Hauck --- Abdul Latif Jameel Institute for Disease and Emergency Analytics, MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, School of Public Health, UK

More than 14.5 of the 36.7 million people living with HIV globally do not know their HIV status, making comprehensive testing interventions a critical step in ending the HIV/AIDS epidemic. Home-based testing and counselling (HBTC) involves small teams of community...

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HIV testing preferences among pregnant women attending antenatal care and their male partners: a discrete choice experiment in Uganda

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jeffrey E Korte --- Department of Public Health Sciences, USA Michael Strauss --- Health Economics and HIV and AIDS Research Division, South Africa Aissatou Ba --- Department of Public Health Sciences, USA Esther Buregyeya --- School of Public Health, Uganda Joseph KB Matovu --- School of Public Health, Uganda Rose Kisa --- School of Public Health, Uganda William Musoke --- Mildmay Uganda, Uganda Harriet Chemusto --- Mildmay Uganda, Uganda Caroline J Vrana-Diaz --- Department of Public Health Sciences, USA Angela M Malek --- Department of Public Health Sciences, USA Rhoda K Wanyenze --- School of Public Health, Uganda Gavin George --- Health Economics and HIV and AIDS Research Division, South Africa

HIV testing rates remain stubbornly low among men – a crucial target population for reaching the ambitious global and regional goals of the HIV programme. In an era of declining donor funding, identifying cost-effective strategies to increase testing rates amongst...

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The politics of corporate social responsibility in the mining industry in Burkina Faso

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Rabake Kinba Hermelline M. Nana --- Huddersfield Business School, United Kingdom Eshani Beddewela --- Huddersfield Business School, United Kingdom

This paper examines the non-market strategy of a multinational corporation in an institutionally weak country, specifically focusing on its corporate social responsibility. Theoretically, the paper argues that the motives and outcomes of corporate social responsibility could facilitate corporate political activity,...

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A dialogue on the informal economy in Africa

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Tiara Nicole Dungy --- Lilly School of Philanthropy, USA Hermann Achidi Ndofor --- Kelley School of Business, USA

Although ubiquitous, very little is generalizable about the informal economy. This is especially the case within Africa wherein the informal economy also intersects with the indigenous economy. The diversity of papers in the special issue (AJOM, Volume 4 Issue 3)...

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Implications of incomplete restorative justice in South African land restitution: lessons from the Moletele case

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Nerhene C. Davis --- Department of Geography, Geoinformatics and Meteorology, South Africa

Since 2005, South Africa’s post-apartheid state has opted to impose inclusive business model arrangements between land claimant communities and private sector partners to ensure the “successful” resolution of claims involving prime agricultural land. This approach was deemed compatible to achieve...

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Singabantu bendawo: understanding the concept of land from the perspective of ubuntu

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Nompumelelo Zodwa Radebe --- Anthropology and Archaeology, South Africa

The 54th national conference of the African National Congress, the ruling party in South Africa, resolved amongst other things to review the country’s constitution such that it enables the government to implement land expropriation without compensation. This resolution has faced...

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Proper Names in Translation: Should They be Translated or Not?

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Nahashon A. Nyangeri --- Department of Kiswahili Language, Linguistics and Literature, Kenya Rachel Wangari --- Department of Kiswahili Language, Linguistics and Literature, Kenya

One of the most problematic elements that translators grapple with in the translation of literary works is proper names. The contention is whether or not proper names should be translated. Proper names are the raw materials the writer uses to...

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Coping with occupational stress in an open distance learning university in South Africa

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Melissa du Plessis --- Department of Human Resource Management, South Africa

The study explored the occupational stressors experienced by academics employed by open distance learning (ODL) institutions and their coping strategies. The participants were a convenience sample of 305 academics from an ODL university in South Africa (female = 64.3%; median...

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Occurrence of selected pharmaceuticals in industrial wastewater, receiving waters and fish

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SM Lan --- Ecotoxicology Unit, Department of Zoology, Nigeria NH Amaeze --- Ecotoxicology Unit, Department of Zoology, Nigeria HE Obanya --- Ecotoxicology Unit, Department of Zoology, Nigeria CU Okoroafor --- Ecotoxicology Unit, Department of Zoology, Nigeria

Data on pharmaceutical contamination of African waterbodies are scarce. Therefore, this research aimed to quantify the occurrence of selected pharmaceuticals in wastewater from pharmaceutical industries, receiving waters and fish. Water and fish samples were collected from waterbodies close to two...

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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 Africa

The 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...

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Oxygen and temperature influence the distribution of deepwater Cape hake Merluccius paradoxus in the southern Benguela: a GAM analysis of a 10-year time-series

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: FL Mbatha --- Department of Biological Sciences and Marine Research Institute, South Africa D Yemane --- Department of Biological Sciences and Marine Research Institute, South Africa M Ostrowski --- Institute of Marine Research (IMR), Norway CL Moloney --- Department of Biological Sciences and Marine Research Institute, South Africa MR Lipiński --- Department of Ichthyology and Fisheries Science, South Africa

Generalised additive models (GAMs) were applied to survey data to assess the influence of dissolved oxygen, water temperature and year of sampling upon the presence/absence of small (≤15 cm TL), medium (16–34 cm TL) and large (≥35 cm TL) size...

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Clay and iron oxide contents of prismacutanic B, G, soft plinthic B, and E horizons described during the land type survey of South Africa

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Anizka Stolk --- Department of Soil, Crop and Climate Sciences, South Africa Cornelius W van Huyssteen --- Department of Soil, Crop and Climate Sciences, South Africa

Humans organise their environment, including soils. With soil classification the challenge is to consistently differentiate between soils. This study was therefore initiated to summarise selected properties of the prismacutanic B, G, soft plinthic B, and E horizons, described during the...

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Optimising the dosage of ethyl methanesulphonate mutagenesis in selected wheat genotypes

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Boluwatife M Olaolorun --- School of Agricultural, Earth and Environmental Sciences, South Africa Hussein A Shimelis --- School of Agricultural, Earth and Environmental Sciences, South Africa Isack Mathew --- School of Agricultural, Earth and Environmental Sciences, South Africa Mark D Laing --- School of Agricultural, Earth and Environmental Sciences, South Africa

Narrow genetic variation limits the success of crop improvement programs. Mutagenesis using ethyl methane- sulphonate (EMS) provides an opportunity to increase genetic variation to enhance selection in wheat improvement. This study aimed at establishing the optimum dosage and treatment conditions...

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Roseate Terns Sterna dougallii on the southeast coast of South Africa: information on moult and migratory status

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Anthony J Tree --- Port Alfred, South Africa Maëlle Connan --- Department of Zoology, Marine Apex Predator Research Unit, Institute for Coastal and Marine Research, South Africa Philip A Whittington --- Department of Zoology, South Africa

Determining the migratory status of seabird populations is crucial for addressing conservation concerns. The Roseate Tern Sterna dougallii is considered endangered in South Africa in view of its small breeding population and the threats to eggs and chicks. Earlier works...

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Scientific human resource for national development in Ghana: Issues and challenges

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Emmanuel Kodjo Tetteh --- Science and Technology Policy Research Institute (STEPRI), Accra, Ghana Gordon Akon-Yamga --- Science and Technology Policy Research Institute (STEPRI), Accra, Ghana Emmanuel Jumpah --- Science and Technology Policy Research Institute (STEPRI), Accra, Ghana Rose Omari --- Science and Technology Policy Research Institute (STEPRI), Accra, Ghana

Studies have established that science and technology applications have culminated in the discovery of new products, new processes, improved and faster services, better ways of solving human and environmental challenges as well as opportunities for new jobs. Therefore, understanding and...

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Innovation financing and public policy dilemmas in the Economic Community of West African States (ECOWAS)

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Joseph Ato Forson --- Department of Banking and Finance, Ghana

As part of efforts to change the structure of economies in sub-Saharan Africa from agrarian dominated to a more diversified one that will add value to exports and create more job opportunities, countries in the region have intensified strategies through...

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Evaluation of the accuracy of visual glucose estimates by healthcare providers and patients at Kalafong Hospital, City of Tshwane, South Africa

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Simbarashe B Mhishi --- Department of Epidemiology, University of Pretoria, South Africa Danie G van Zyl --- Clinical Department, Department of Internal Medicine, South Africa

Background: A patient-centred approach with self-monitoring of blood glucose (SMBG) has emerged as the preferred approach in monitoring and managing blood glucose. The success of SMBG in diabetes treatment and management relies heavily on the accurate and reproducible measurement of...

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Cliff roost site selection of the endangered Cape Vulture Gyps coprotheres in the Eastern Cape province, South Africa

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Francis R Martens --- School of Natural Resource Management, George Campus, South Africa Morgan B Pfeiffer --- School of Natural Resource Management, George Campus, South Africa Colleen T Downs --- School of Life Sciences, South Africa Jan A Venter --- School of Natural Resource Management, George Campus, South Africa

Roost site preferences influence the spatial distribution of species. Large soaring birds often roost on cliffs and large structures, and thus are restricted to areas where safe take-offs and landings can occur. The cliff roosting preferences of the Cape Vulture...

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A community-based HIV counselling and testing programme found a decreasing proportion of new HIV testers in South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Simukai Shamu --- Foundation for Professional Development, South Africa Thato Farirai --- Foundation for Professional Development, South Africa Jean Slabbert --- Foundation for Professional Development, South Africa Geoffrey Guloba --- Foundation for Professional Development, South Africa Nomea Masihleho --- USAID, South Africa Julius Kamera --- USAID, South Africa Nkhensani Nkwashu --- Foundation for Professional Development, South Africa

This article assesses the history of HIV testing among community-based HIV counselling and testing (CBCT) clients between 2014 and 2018 in 13 South African districts. Consenting clients were tested for HIV and interviewed to categorise as first-time testers or repeat...

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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, USA

The 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...

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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 Africa

Mothers 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...

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Barriers to HIV testing uptake among men in sub-Saharan Africa: a scoping review

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mbuzeleni Hlongwa --- School of Nursing and Public Health, South Africa Tivani Mashamba-Thompson --- School of Nursing and Public Health, South Africa Sizwe Makhunga --- School of Nursing and Public Health, South Africa Khumbulani Hlongwana --- School of Nursing and Public Health, South Africa

Introduction: HIV testing among men remains low globally and in sub-Saharan Africa (SSA) in particular, when compared with their female counterparts. The aim of this study was to synthesise evidence on barriers to HIV testing among men in SSA using...

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The Nairobi Prostitution Histories: Perspectives from Kenyan Novels

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Wafula Yenjela --- Deptartment of Literature, Creative & Performing Arts, Kenya

This article articulates novelists’ constructions of prostitutes’ humanity in the city’s complex spaces that are both enabling and problematic. Through a reading of selected novels in tandem with Kenyan social histories, the article underpins why the city developed into a...

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How do firms combine different types of innovation? A multivariate probit approach

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: George Abuchi Agwu --- Department of Economics and Development Studies, Nigeria Tobechi Agbanike --- Department of Economics and Development Studies, Nigeria Nkechinyere Uwajumogu --- Department of Economics and Development Studies, Nigeria R. Anuli Ogbuagu --- Department of Economics and Development Studies, Nigeria

When previous studies relate innovation behaviours to firm heterogeneity, they consider mainly product and process innovations. In this paper, we consider a wider range of types of innovation that firms could combine to form different innovation strategies. Using the multivariate...

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The ‘death of innovation’ paradox, R&D and the scientific potential of crowdsourcing

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Chris William Callaghan --- Knowledge and Information Economics/Human Resources Research Agency, School of Economic and Business Sciences, South Africa

Certain scholars have highlighted decreasing returns to investment in research, or research and development (R&D), as well as a lack of growth in patent numbers, in that these do not match increased research employment over time. Certain theories that contest...

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Argumentum ad hominem and coercive company culture influences on workaholism: Results and implications of a cross-cultural South Korea study

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joon-ho Kim --- The Cultural Policy Network, South Korea Hyun-ju Choi --- Department of Cultural & Arts Management, South Korea Jong-pil Yu --- Department of Business Administration, South Korea Jeong-hee Lim --- Research Institute Multicultural Community, South Korea Hyuck-jin Lee --- Department of Economics & Trade, South Korea Seung-hye Jung --- School of Dance, South Korea

The present study investigated the association between supervisors’ use of argumentum ad hominem or confrontational dialogue and companies’ coercive company culture on employees’ emotional exhaustion and workaholism. The survey was conducted with (non-permanent), multicultural foreign workers living in Seoul, Gyeonggi...

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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, Tanzania

Sawfishes 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...

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Management of school nutrition programmes to improve environmental justice in schools: a South African case study

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Ailwei Mawela --- Department of Curriculum and Instructional Studies, College of Education, South Africa Geesje van den Berg --- Department of Curriculum and Instructional Studies, College of Education, South Africa

Objective: The objective of this study was to determine how school principals and nutrition coordinators see their roles in the management of school nutrition programmes for learners from disadvantaged communities.

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Preliminary mineralogical and geotechnical characteristics of Zogbodomey clays in the coastal sedimentary basin of Benin (West Africa)

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sémondji Salvien Pyrrhus Agbon --- Département des Sciences de la Terre, Bénin Nelly Carine Kelome --- Département des Sciences de la Terre, Bénin Luc Adissin Glodji --- Département des Sciences de la Terre, Bénin

The Benin coastal sedimentary basin is filled with deposits of clays of diverse nature. This study focused on the characteristics of clayey materials of Zogbodomey in sight of their valorization in the construction and ceramics sectors. The clay deposit is...

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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 Faso

It 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...

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Corporate tax responsibility in Africa: Insight from Nigeria

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Kenneth Amaeshi --- , United Kingdom Bongo Adi --- , Nigeria Godson Ikiebey --- , Nigeria Neil McCulloch --- , United Kingdom

This study explores how small business owners in Africa talk about their tax responsibility, using Nigeria as a case study. Data were collated through interviews, focus group sessions, and online chats. The study identifies two main types of tax responsibility...

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Midgut neuroendocrine tumour presenting as orbital metastases

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Helen Hoenck --- , South Africa Wilhelmina Conradie --- , South Africa Magda Conradie --- , South Africa Ankia Coetzee --- , South Africa

Metastasis of a neuroendocrine tumour (NET) to the orbit is a rare occurrence, with published data limited to a few case reports. Orbital involvement usually presents with proptosis and decreased ocular mobility. Timing, in relation to the presentation of the...

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Promoting rainwater harvesting for improving water security: Analysis of drivers and barriers in Ghana

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mavis Akuffobea-Essilfie --- , Ghana Portia Adade Williams --- , Ghana Roland Asare --- , Ghana Sigrid Damman --- , Norway George Owusu Essegbey --- , Ghana

The study explored strategies and means of achieving wider acceptability and adoption of roof rainwater harvesting (RWH) systems in Ghana to improve water security and availability. The paper employed a qualitative approach in analyzing views expressed by a wide range...

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Measuring language usage in hospitality situations

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Leanne Schreurs --- , The Netherlands

In this study, language usage in hospitality situations is measured. To this end, a corpus of utterances taken from a Colombian Spanish novel is quantitatively analysed. As a starting point of the analysis, it is illustrated that different modes of...

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Luxury consumption in tourism: the case of Dubai – Part 2

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Andy Heyes --- , The Netherlands Sanjay Nadkarni --- , UAE

2016 was a year of critical discussion and reflection for Nadkarni and Heyes as they considered the luxury image of Dubai in this journal. Discussions outlined the theoretical nature of luxury while also addressing the current hotel industry statistics coming...

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Agents sans frontiers: cross-border aquatic weed biological control in the rivers of southern Mozambique

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Silvia DF Langa --- , South Africa Martin P Hill --- , South Africa Stephen G Compton --- , South Africa

Biological control is an effective ways of controlling aquatic plants, especially in South Africa. Release of biological control agents has been limited to Mozambique, where water hyacinth (Eichhornia crassipes (Mart.) Solms-Laubach (Pontederiaceae)), water lettuce (Pistia stratiotes L. (Araceae)), red water...

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Ceratocystis wilt on Eucalyptus: first record from South Africa

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: J Roux --- , South Africa MJ Wingfield --- , South Africa A Fourie --- , South Africa K Noeth --- , South Africa I Barnes --- , South Africa

Wilt and death of an E. grandis × E. urophylla variety was recently observed in the Zululand region of KwaZulu-Natal, South Africa. Symptoms on the dying trees included a streaking pattern of discolouration in the sapwood and cambium of stems...

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Carbon stock in the community managed Sal (Shorea robusta) forests of Dadeldhura district, western Nepal

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Suresh Prashad Bhatta --- , Nepal Anjana Devkota --- , Nepal

Four community-managed Sal forests in Dadeldhura district of Nepal were selected for the assessment of carbon stock. The stratified random sampling method was applied to measure the field data from 105 sample plots of 100 m2. The carbon stock of...

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A survey of Great-winged Petrels Pterodroma macroptera breeding at sub-Antarctic Marion Island and a revised global population estimate

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ben J Dilley --- , South Africa David W Hedding --- , South Africa Stefan Schoombie --- , South Africa Peter G Ryan --- , South Africa

Although burrow-nesting petrels are the most abundant group of seabirds in the Southern Ocean, their global populations are poorly known, because most species breed on remote islands. For example, there are no accurate estimates for Great-winged Petrel Pterodroma macroptera populations...

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“I’m doing this test so I can benefit from PrEP”: exploring HIV testing barriers/facilitators and implementation of pre-exposure prophylaxis among South African adolescents

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Emily Yoshioka --- , USA Danielle Giovenco --- , USA Caroline Kuo --- , USA Kristen Underhill --- , USA Jackie Hoare --- , South Africa Don Operario --- , USA

In South Africa, adolescents are a key population in the HIV epidemic that can benefit from increased access to oral pre-exposure prophylaxis (PrEP). HIV testing is an integral component of the PrEP care continuum but adolescents in South Africa have...

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Addressing community-level stigma toward key populations: communication insights from action research in Ghana

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Warren Parker --- , USA Joan Schubert --- , Ghana Serwaa Owusu-Ansah --- , Ghana Kwadwo Asante-Afari --- , Ghana Samuel Edem Assisi --- , Ghana Emmauel D Adiku --- , Ghana Thad Pennas --- , USA Saul Evans Williams --- , Ghana

Background: Global HIV response emphasises improving the uptake of HIV testing, providing access to antiretroviral therapy and sustaining viral suppression with a view to curtailing the pandemic by 2030. Stigma and discrimination impede this response by limiting engagement with the...

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The HIV/AIDS pandemic in Kenya: an investigation into the perceptions of Kenyans toward people living with HIV/AIDS and government programmes

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Robert Nyaga --- , USA

The HIV/AIDS pandemic is compounded by the continued stigmatization of the virus/disease and of people living with HIV/AIDS (PLWHA). Employing structuration theory, this study sought to examine the perceptions of Kenyans toward their government’s efforts to curtail HIV/AIDS as well...

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Applying a social-ecological lens to opinions about HIV self-testing among Kenyan truckers who declined to test: a qualitative study

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Stephanie N Christian --- , USA Joanne E Mantell --- , USA Matthew L Romo --- , USA Christian Grov --- , USA Gavin George --- , South Africa Eva Mwai --- , Kenya Eston Nyaga --- , Kenya Jacob O Odhiambo --- , Kenya Kaymarlin Govender --- , South Africa Elizabeth A Kelvin --- , USA

HIV prevalence among truckers in Africa is high and testing rates suboptimal. With numerous African countries having approved HIV self-testing kits, more information on how to design acceptable and accessible self-testing programs for high-risk populations is necessary. We explored views...

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HIV-prevention measures on a university campus in South Africa – perceptions, practices and needs of undergraduate medical students

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Willem Kruger --- , South Africa Neo Lebesa --- , South Africa Katlego Lephalo --- , South Africa Dumenzile Mahlangu --- , South Africa Mpumelelo Mkhosana --- , South Africa Motlhoboga Molise --- , South Africa Pretty Segopa --- , South Africa Gina Joubert --- , South Africa

Background: Young adults such as university students are considered to be a key population for HIV-prevention efforts. This study aimed to determine the perceptions, practices and needs of undergraduate medical students regarding HIV-prevention measures available on campus.

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Ecosystem service values of sediment generation and entrapment by marginal coral reefs at Sodwana Bay, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SCS Laing --- , South Africa MH Schleyer --- , South Africa JK Turpie --- , South Africa

Coral reefs provide a multitude of goods and services, some of which are difficult to value due to their intangible nature and the absence of markets to ascribe their relative worth. The coral reefs of Sodwana Bay on the northeast...

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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 --- , Algeria

The 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...

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Effect of nitrogen fertilisation during the cool season on daily growth rate, botanical composition and selected nutritive characteristics of a mixed grass-clover pasture in the Winelands sub-region of the Western Cape

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Johan Labuschagne --- , South Africa Carien Bester --- , South Africa Petrus J Pieterse --- , South Africa

Nitrogen effects the productivity, botanical composition and quality of grass-clover pastures. Responses to N fertilisation are area and season specific and must be quantified to ensure optimal economical pasture production. A grass-clover pasture mixture was established under irrigation at Elsenburg...

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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 Africa

The 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...

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Rats and prions at Tristan da Cunha Island

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ben J Dilley --- , South Africa Delia Davies --- , South Africa Julian Repetto --- , United Kingdom (South Atlantic Ocean) George Swain --- , United Kingdom (South Atlantic Ocean) Peter G Ryan --- , South Africa

Tristan da Cunha is a 96 km2 volcanic island in the South Atlantic Ocean. Black Rats Rattus rattus reached the island from a shipwreck in 1882 and their depredation of seabirds’ eggs and chicks are likely partly responsible for the...

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Large characteristic subgroups and abstract group classes

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Francesco de Giovanni --- , Italy Marco Trombetti --- , Italy

It is well-known that every virtually abelian group contains an abelian characteristic subgroup of finite index. We shall say that a group class is F-characteristic if any group containing an -subgroup of finite index has also a characteristic subgroup of...

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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 --- , Nigeria

This 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...

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A survey of phytoplankton and zooplankton communities in the newly created Tugwi-Mukosi reservoir, Zimbabwe, during the filling phase

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L Mhlanga --- , Zimbabwe TC Madzivanzira --- , Zimbabwe T Nhiwatiwa --- , Zimbabwe P Tendaupenyu --- , Zimbabwe M Barson --- , Zimbabwe L Marufu --- , Zimbabwe N Songore --- , Zimbabwe

The plankton assemblages of Tugwi-Mukosi reservoir in south-eastern Zimbabwe were assessed seven months after impoundment to form a baseline for future monitoring and tracking of changes linked to the reservoir’s ontogenetic development processes. While cyanobacteria were the dominant group at...

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Water quality of the volcanic crater lake, Lake Barombi Kotto, in Cameroon

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ME Awo --- , Cameroon BA Fonge --- , Cameroon PT Tabot --- , Cameroon JTK Akoachere --- , Cameroon

Cameroon is endowed with many freshwater lakes and rivers but, because of increasing anthropogenic activities, most of these water bodies are gradually being degraded. Lake Barombi Kotto is one of the volcanic crater lakes in Cameroon that serves as a...

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Pilot study involving the use of point-of-care glycated haemoglobin (HbA1c) testing for screening and monitoring of diabetes mellitus in the public healthcare sector in KwaZulu-Natal

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Somasundram Pillay --- , South Africa

Background: The diabetes pandemic continues to cause both patient and economic burden. Globally, strategies to improve glycaemic control in patients with diabetes are highly sought after. One such strategy involves the use of point-of-care glycated haemoglobin (POCT HbA1c) testing, which...

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HIV stigma, resilience and depressive symptoms among older adults living with HIV in rural Namibia

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Eveline Ndinelao Kalomo --- , USA Jung Sim Jun --- , USA Kyoung Lee --- , USA Mgori Nuru Kaddu --- , Namibia

In sub-Saharan Africa, HIV-positive older adults aged 50 years and older experience complex psychosocial issues in addition to dealing with their HIV status and the ageing process. This study focused on the association between HIV stigma, resilience, and depressive symptoms...

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“There is no fear in me … well, that little fear is there”: dualistic views towards HIV testing among South African adolescent girls and young women

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Zoe Duby --- , South Africa Kim Jonas --- , South Africa Tracy McClinton Appollis --- , South Africa Kealeboga Maruping --- , South Africa Janan Dietrich --- , South Africa Lieve Vanleeuw --- , South Africa Catherine Mathews --- , South Africa

In spite of the high HIV burden and high prevalence and incidence of HIV infection among adolescent girls and young women (AGYW) in South Africa, uptake of HIV testing in this population falls short of the UNIADS 90-90-90 targets, leading...

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Analysis and assessment of innovative culture development

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Daria Tomasova --- , Russia

The vast number of transformations in the present business environment, its significant growth and the variety of its possibilities, together with the need for accelerated development of economic systems tightly linked to innovative culture development necessitated this paper. The task...

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Discovering the research focus of higher academic institutions

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Olufunke Oladipupo --- , Nigeria Ibukun Afolabi --- , Nigeria Stephen Adubi --- , Nigeria Olaperi Sowunmi --- , Nigeria

The research focus of an institution indicates the academic strength of the institution. This academic strength goes a long way to determine the quality of academic product expected from such an institution. To this effect, this study aims at analyzing...

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The effects of uncertainty on investor expectations and volatility in the South African white maize futures market

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Christo Auret --- , South Africa Ayesha Sayed --- , South Africa

Given the rapidly changing nature of financial markets, volatility indices often influence the trading behaviour of market participants, as they identify market patterns, predict market risk and gauge market sentiment. This paper examines the effects of uncertainty on the expectations...

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Risk-based portfolio sensitivity to covariance estimation

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Hannes du Plessis --- , Paul van Rensburg --- ,

Risk-based portfolio construction methods focus on optimally extracting information from the covariance matrix of asset returns, as opposed to utilising forecasts of expected returns, in determining the portfolio allocation. This improves their robustness to estimation error in means, but this...

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Anatomical, physiological and allometric contrasts of the Cerrado tree Dalbergia miscolobium in full sun and shade environments

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ane Marcela das Chagas Mendonça --- , Brazil Jean Marcel Sousa Lira --- , Brazil Marcelo Rodrigues --- , Brazil Vanessa da Fontoura Custódio Monteiro --- , Brazil Edson Simão --- , Brazil João Paulo Rodrigues Alves Delfino Barbosa --- , Brazil

The Brazilian Cerrado is a mosaic comprised of different vegetation formations and consequently, different environmental conditions. Tree density modifies the availability of light and affects species distribution. Thus, seedlings of species with a broad distribution should show contrasting anatomical, morphological,...

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Influence of the soil on the spatial structure of forest species – preliminary results in a terra firme secondary forest plot, Amapá, Brazil

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ronaldo Oliveira dos Santos --- , Brazil Robson Borges de Lima --- , Brazil Rubiene Neto Soares --- , Brazil Bruno de Souza Dantas --- , Brazil Adriano Castro de Brito --- , Brazil Michelle Vasconcelos Cordeiro --- , Brazil Jadson Coelho de Abreu --- , Brazil Breno Marques da Silva e Silva --- , Brazil

In recent years there has been increasing interest in the relationships between edaphic factors in tropical forests due to the complexity and the dynamic nature of plant interactions with the physical environment. This research sought to investigate the correlation of...

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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 --- , Spain

We 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...

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Students’ vulnerability and perceptions of food insecurity at the university of KwaZulu-Natal

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Stella Chewe Sabi --- , South Africa Unathi Kolanisi --- , South Africa Muthulisi Siwela --- , South Africa Denver Naidoo --- , South Africa

Introduction and objective: Food insecurity (FI) is an emerging and alarming problem among university students. The problem particularly affects students from poor households. The University of KwaZulu-Natal (UKZN), South Africa is likely to be no exception to experiencing student FI...

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Diving into the Slave Wreck: The São José Paquete d’Africa and Yvette Christiansë’s Imprendehora

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Charne Lavery --- , South Africa

The first slave wreck to be definitively identified is the São José-Paquete de Africa, a slave ship from Mozambique Island wrecked off the coast of Cape Town. This paper takes that wreck as case study and context for the southern...

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R&D productivity for science, technology and innovation policy development in Nigeria: A scientometric analysis of academic literature

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Olufikayo Abodunde --- , Nigeria Oluseye Jegede --- , South Africa

This study purposively selected 148 Science and Engineering Journals out of the 221 Journals registered on the African Journal Online (AJOL) directory. Data harvested were analyzed on a year-wise basis from 2012 to 2016, to identify the positive or negative...

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Application of metaheuristic algorithms in DC-optimal power flow

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Oluwafemi Ajayi --- , South Africa Nnamdi Nwulu --- , South Africa Uyikumhe Damisa --- , South Africa

This paper presents the application of two metaheuristic algorithms (Exchange Market Algorithm and Ant Lion Optimizer) in solving the DC optimal power flow problem. The objective of this study is to minimize fuel costs associated with electricity generation. Advanced Interactive...

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Does a paternalistic leader facilitate voice and creative performance? Evidence from Ghana

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lu Chen --- , China William Ansah Appienti --- , China

Drawing upon the conservation of resource theory and leadership contingency model, this study investigated how and when employee voice under three paternalistic leadership dimensions of benevolence, morality, and authoritarianism relates to creativity. The sample included matched survey responses obtained from...

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Management research in Africa: Insights from organizational neuroscience

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Constant Beugré --- , USA

The present paper discusses the application of organizational neuroscience in management research in Africa. In so doing, the paper draws from the field of neuroscience, organizational neuroscience, and cultural neuroscience to explore the extent to which topics, such as corruption,...

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Presence of microplastics in benthic macroinvertebrates along the Kenyan coast

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: W Awuor --- , Kenya AWN Muthumbi --- , Kenya DV Robertson-Andersson --- , South Africa

Microplastics (MPs) are plastics less than 5 mm in diameter. Their small size renders them invisible to deposit- and filter-feeding fauna, leading to unintentional ingestion. This study investigated the presence of MPs in an oyster (Saccostrea cuccullata) and three species...

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Level of adherence and associated factors among HIV-positive adolescents on antiretroviral therapy in Cameroon

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mbuwir Charlotte Bongfen --- , Ghana Kwasi Torpey --- , Ghana John Ganle --- , Ghana Augustine Ankomah --- , Ghana

Aim: Globally, there were over 250 000 new HIV infections among adolescents in 2017, with a higher proportion of these in sub-Saharan Africa. In Cameroon, UNICEF estimated over 4 200 new HIV infections in adolescents in 2015; by 2016, there...

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Domestic stigmatisation: refocusing interventions for people living with HIV

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Laura Ann Chubb --- , New Zealand Christa B Fouché --- , New Zealand

Domestic stigmatisation serves as an umbrella term for acts of enacted or felt stigma experienced in a person’s domestic environment. This article reports on the term which transpired from a narrative inquiry in 2011 with people living with HIV (PLWH)...

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The art of retaining volunteers

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Henrik S. Pahus --- , Denmark

This article is part of an ongoing research project into motivation and retention of volunteers at festivals and events. The overall project is conducted in collaboration with “Muskelsvindfonden”, which is a Danish foundation that runs several large festivals in the...

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The new soil classification system in South Africa, its history, important changes made and implications for users

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: George van Zijl --- , South Africa Dave Turner --- , South Africa Garry Paterson --- , South Africa Jaco Koch --- , South Africa Johan van Tol --- , South Africa Kurt Barichievy --- , South Africa Cathy Clarke --- , South Africa Martiens du Plessis --- , South Africa Piet van Deventer --- ,

The board of the Soil Science Society of South Africa endorsed the “Soil Classification: A Natural and Anthropogenic System for South Africa”, in 2020 making it the official soil classification system to be used in South Africa. This classification system,...

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Bone health in patients undergoing surgery for primary hyperparathyroidism at Tygerberg Hospital, Cape Town, South Africa

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: M Budge --- , W Conradie --- , K Beviss-Challinor --- , L Martin --- , M Conradie --- , A Coetzee --- ,

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Longitudinal species turnover rates are predictable and should guide location of sampling sites for South African river surveys to assess aquatic biodiversity

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NA Rivers-Moore --- , South Africa FC de Moor --- , South Africa

Representative samples of biota collected relative to environmental gradients are important for measuring present distributions and predicting shifts in distribution of taxa in response to climate change or reduced river connectivity. Based on river ecology theory and established measures of...

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Motivating people living with HIV to initiate antiretroviral treatment outside national guidelines in three clinics in the HPTN 071 (PopART) trial, South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Constance Mubekapi-Musadaidzwa --- , South Africa Dillon Wademan --- , South Africa Neshaan Peton --- , South Africa Portia Hendricks --- , South Africa Gabriela Carolus --- , South Africa Rheiner Mbaezue --- , South Africa Karen F Kelley --- , South Africa James Kruger --- , South Africa Karen Jennings --- , South Africa Nelis Grobbelaar --- , South Africa Francoise Louis --- , South Africa Nulda Beyers --- , South Africa Helen Ayles --- , Zambia Sarah Fidler --- , UK Richard Hayes --- , UK Peter Bock --- , South Africa Graeme Hoddinott --- , South Africa

Background: The HPTN 071 (PopART) trial implemented universal test and treat (UTT) in three clinics in the Western Cape, South Africa at a time when antiretroviral treatment (ART) was only offered by CD4 threshold and World Health Organization clinical staging...

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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 Africa

Background: 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...

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Procedural justice, police legitimacy, and performance: Perspectives of South African students

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Paul Oluwatosin Bello --- , South Africa Thabiso Donald Matshaba --- , South Africa

This study explored notions of procedural justice and police legitimacy among university students in South Africa. We surveyed 482 South African university students (female =77.6%; black = 91.7%; mean age = 23.0 years, SD = 1.05 years) on the effect...

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If the equal weighted portfolio is so great, why isn’t it working in South Africa?

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Byran H Taljaard --- , South Africa Eben Maré --- , South Africa

This paper considers the recent underperformance of the equal weighted portfolio of South African Top 40 stocks relative to the market capitalisation weighted portfolio. It highlights the impact of the increased concentration of market capitalisation weights in the Top 40,...

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Nest characteristics and morphometry of Black Crowned Cranes Balearica pavonina ceciliae in Lake Tana area wetlands

Item type: Journal Article • Journal: African Zoology • Authors: Shimelis Aynalem Zelelew --- , Ethiopia George Archibald --- , United States

Birds select breeding habitats based on biotic and abiotic environmental factors, resulting in a non-random spatial distribution of nests. This study investigated the onset of nesting, nest location, the relationship between nest height and water depth, nest materials, and the...

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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 --- , Finland

This 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...

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Virtual identity crisis: The phenomenology of Lockean selfhood in the “Age of Disruption”

Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Michael F. Deckard --- , USA Stephen Williamson --- ,

From the end of the seventeenth century to now well into the 21st, John Locke’s theory of personal identity has been foundational in the field of philosophy and psychology. Here we suggest that there are two fundamental threads intertwined in...

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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 Africa

Purpose: 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.

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To honk or to hiss: uncovering call complexity in the Egyptian Goose Alopochen aegyptiaca

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tess Gridley --- , South Africa Courtney EC Gardiner --- , South Africa

Egyptian Geese Alopochen aegyptiaca are distributed across most of Africa. Their calls dominate the soundscape of many urban areas, yet their acoustic behaviour is poorly documented or understood. Using acoustic recordings made across a range of behavioural contexts, groups sizes...

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Does defoliation frequency and severity influence plant productivity? The role of grazing management and soil nutrients

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Zander S Venter --- , Norway Heidi-Jayne Hawkins --- , South Africa Michael D Cramer --- , South Africa

Rangeland management approaches, including rotational grazing, rely on assumptions about plant growth responses to the intensity, or severity (sward height) plus frequency, of defoliation. We tested these assumptions at the farm, patch and plant scale using data from a grazing...

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Mobile money adoption in rural Rwanda: A domestication perspective

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Marthe Uwamariya --- , Germany Claudia Loebbecke --- , Germany Stefan Cremer --- , Germany

With this explorative research, we investigate if and how farmers in Rwanda adopt mobile money, or m-money, and integrate it into their everyday life to foster their economic development and social well-being. To this end, we adapt a domestication perspective...

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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 Tanzania

Manufacturing 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...

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The work-family interface and polygamy in Africa: A demands-resources perspective

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Ifeyimika O. Ogunyomi --- , USA Wendy J. Casper --- , USA

Work-family (WF) research in Africa has just begun to address unique elements of work and family relationships on this continent. In this paper, the relationships between family demands and resources in polygamous homes and family-to-work conflict and enrichment are put...

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Enhancing competitiveness of Zimbabwe’s cotton production under contract farming

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Jackqeline Mutambara --- , Harare, Zimbabwe Kingstone Mujeyi --- , Harare, Zimbabwe

This study was designed to assess the competitiveness of cotton production by smallholder farmers under contract farming in Zimbabwe and propose strategies for enhancing sector performance. Data were collected from secondary sources, key informant interviews and focus group discussions (FGDs)...

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Dynamic behaviour of institutional ownership and firm life cycle: Evidence from Taiwan

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Yung-Jang Wang --- , Taiwan M. Mark Walker --- , USA Po-Hsiung Huang --- , Taiwan

We find that firms in the growth and maturity stage generally have higher levels of institutional ownership, higher Tobin’s Q ratios, and are more likely to remain in their life cycle stage over the subsequent six-year period. Further analysis indicates...

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Statistical arbitrage on the JSE based on partial co-integration

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: A. J. Hoffman --- , South Africa

Early forms of statistical arbitrage exploited the mean reversion of a model error extracted from pairs of instruments with a tendency to move together. Pairs trading was extended by Engle and Granger and by Johansen to include several co-integrated instruments...

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Stakeholders’ perceptions of mammal occurrence and abundance on agricultural properties bordering the Boland Mountain Complex, South Africa

Item type: Journal Article • Journal: African Zoology • Authors: Willem A Nieman --- , South Africa Brittany C Schultz --- , South Africa Anita Wilkinson --- , South Africa Alison J Leslie --- , South Africa

The encroachment of agricultural landscapes on natural ecosystems poses a significant threat to native wildlife persistence. In the Boland Mountain Complex (BMC), the presence of mammals was well documented in the 20th century, but an updated account is lacking. This...

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Emotional labour influences on psychological health: The moderating role of religiosity

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Collins Badu Agyemang --- , Ghana

The present study examined the direct association between emotional labour and psychological health, and the moderating role of religiosity among media practitioners in Ghana. Using a cross-sectional design, 336 media practitioners (female = 31%) completed a survey on emotional labour...

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Prevalence and sociodemographic determinants of alcohol consumption among adults living with HIV in Eswatini

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Garikayi B Chemhaka --- , Eswatini Maswati S Simelane --- , Eswatini Stanzia Moyo --- , Zimbabwe Mduduzi C Shongwe --- , Eswatini

Aim: Alcohol consumption contributes to a significant burden of illnesses, health conditions and premature deaths globally. There is limited knowledge of alcohol consumption among people living with HIV (PLWH) in Eswatini. This study sought to determine the prevalence, and examine...

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Food security status of farming households in Bangladesh: A comparison of recipients and non-receivers of institutional support

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abdullah Al-Zabir --- , Bangladesh Camillus Abawiera Wongnaa --- , Ghana Md. Ariful Islam --- , Bangladesh Md. Nur Mozahid --- , Bangladesh

This study examined the difference in food security status of recipients and non-receivers of institutional support living under similar socioeconomic conditions. The study used data collected from 160 farming households in five upazilas in Sylhet district using stratified sampling. Descriptive...

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A study on the use of mobile computing technologies for improving the mobility of Windhoek residents

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Julius Silaa --- , Namibia Husin Jazri --- , Malaysia Hippolyte Muyingi --- , Namibia

The aim of this study was to investigate the use of mobile computing technologies for improving the mobility of Windhoek residents, through exploring the perceptions and attitudes of Windhoek taxi drivers and passengers subjected to a real time experiment of...

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Psychosocial variables of the interactive mobile interface for geriatric persons in a Kenyan setting: An exploratory study

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Njeri Ngaruiya --- , Kenya Daniel Orwa Ochieng --- , Kenya Peter Waiganjo --- , Kenya

We aimed to identify and explore the priority psychosocial considerations for the gerontechnology design for Kenyan geriatrics. Our informants were a convenience sample of eight older adults (female = 4, age range 65 years to 78 years; and males =...

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Mothering in socioeconomically marginalised communities in South Africa: A conceptual development

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ingrid Onarheim Spjeldnæs --- , Norway

From a sociopsychological perspective, mothering is variously described in the research literature. This theory synthesis research design study aims to integrate our current understanding of “the familiar” phenomenon of mothering by asking: (i) how mothering is understood across diverse realities...

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The distribution of dinoflagellate cyst assemblages in recent sediments of the Oualidia Lagoon, Morocco, with a focus on toxic species

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Chaira --- , Morocco H Rhinane --- , Morocco B Ennaffah --- , Morocco S Maimouni --- , Morocco R Sagou --- , Morocco S Loulad --- , Morocco A BenMhamed --- , Morocco A Agouzouk --- , Morocco S BenBrahim --- , Morocco E Masseret --- , France M Laabir --- , France

Harmful algal blooms (HABs) are becoming widely distributed and more frequent, threatening socioecosystems and human health. We determined species composition, abundance and spatial distribution of dinoflagellate cysts in the upper sediment of the Oualidia Lagoon located on the Atlantic coast...

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Bull shark Carcharhinus leucas recruitment into the St Lucia Estuary, South Africa, after prolonged mouth closure, and the first observation of a neonate bull shark preyed on by a Nile crocodile Crocodylus niloticus

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Daly --- , South Africa P Le Noury --- , United Kingdom TN Hempson --- , Mozambique M Ziembicki --- , Mozambique JM Olbers --- , South Africa GM Brokensha --- , South Africa BQ Mann --- , South Africa

Estuaries provide critical nursery habitat for juvenile bull sharks Carcharhinus leucas, as they have the ability to withstand a wide range of salinities. St Lucia is the largest estuarine lake in Africa and was once a key nursery for bull...

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Microplastics pollution in the sediments of creeks and estuaries of Kenya, western Indian Ocean

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JO Kerubo --- , Kenya AWN Muthumbi --- , Kenya JM Onyari --- , Kenya D Robertson-Andersson --- , South Africa E Kimani --- , Kenya

Microplastic pollution has been recognised as a global threat in marine environments and a danger to prey, predators and humans. Yet, there have been few studies in the western Indian Ocean, specifically along the Kenyan coast, which makes it difficult...

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Barriers to ART adherence among school students living with HIV in Kenya

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Edith Apondi --- , Kenya Juddy Wachira --- , Kenya Rose Ayikukwei --- , Kenya Catherine Kafu --- , Kenya Jael Onyango --- , Kenya Mark Omollo --- , Kenya Becky Genberg --- , USA Winstone Nyandiko --- , Kenya Paula Braitstein --- , Kenya

HIV has transformed from a serious acute illness with high rates of morbidity and mortality to a fairly easily managed chronic disease. However, children and adolescents living with HIV are yet to achieve similar improvement in their HIV care outcomes...

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Structure, growth and growing space efficiency of Pinus radiata (D. Don) trees as affected by their social position

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Hans Pretzsch --- , Germany Andreas Rais --- , Germany Deon Malherbe --- , South Africa Antonio Ruano --- , Spain Hugo Lambrechts --- , The Netherlands Enno Uhl --- , Germany Ben du Toit --- , South Africa

Currently, silvicultural prescriptions such as thinning monospecific stands from above and transitioning from monospecific to mixed-species stands are scrutinised regarding their ability to reduce stress and damage. That the quantity and quality of the trees harvested by intermediate and final...

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Rural community use and perception of rangeland products in Eastern Cape Province, South Africa

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Lwandiso Mdiya --- , South Africa Amon Taruvinga --- , South Africa Abbyssinia Mushunje --- , South Africa Keletso Mopipi --- , South Africa Saul Ngarava --- , South Africa

The significance of rangelands to the welfare of the rural poor has been acknowledged. The study explores perceptions and determinants of rural households’ rangeland harvesting. A cross-sectional survey of 159 rural households harvesting communal rangeland products was utilized, as well...

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Employee followership predispositions: Their perceptions of narcissistic traits in supervisors

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jianjia He --- , China Shengmin Liu --- , China Jianbo Liu --- , China Thi Hoai Thuong Mai --- , China

We investigated the relationship between employee perceptions of narcissistic supervision and employee followership. Further, we investigated the influences of employee proactive personality, self-efficacy, political skill, and team political climate on said relationship. Data were from 383 employees of a large...

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The case for a universal basic income in South Africa: A conceptual approach

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Kerrie Sadiq --- , Australia Hanneke du Preez --- , South Africa

This conceptual study investigates a model for addressing both poverty and income inequality, which is theoretically distinct from the traditional tax and transfer systems adopted by most jurisdictions. It does so against a backdrop of global uncertainty and ongoing challenges...

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Modernisation from the Shadows: Conspiracy, Monasticism and Techno-Utopia in the Amharic novel Dertogada

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Sara Marzagora --- , UK Tom Boylston --- , UK

The Amharic novel Dertogada (2009) was a smash hit in Ethiopia, launching Yismake Worku’s career as one of the most popular Amharic writers of the last decade. This paper explores Dertogada’s huge cultural influence by tracing its unique synthesis between...

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Shortwave infrared vegetation index-based modelling for aboveground vegetation biomass assessment in the arid steppes of Algeria

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Louaï Benseghir --- , Algeria Nour El Islam Bachari --- , Algeria

Selecting the appropriate vegetation index for accurate biomass estimation is a prerequisite before and during the ecosystem management project. This study, aims to compare Vegetation Indices (VIs) that are combining both Visible and Near Infrared OLI bands (VNIR-VIs), Visible and...

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Overview of field-testing of the revised, draft South African Paediatric Food-Based Dietary Guidelines amongst mothers/caregivers of children aged 0–5 years in the Western Cape and Mpumalanga, South Africa

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: LM du Plessis --- , South Africa LC Daniels --- , South Africa HE Koornhof --- , South Africa S Samuels --- , South Africa I Möller --- , South Africa S Röhrs --- , South Africa

Background: This paper provides an overview of a series of studies undertaken to assess the appropriateness and understanding of the revised, draft South African Paediatric Food-Based Dietary Guidelines (SA-PFBDGs) amongst mothers/caregivers of children aged 0–5 years. Previous exposure to guidelines...

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Field-testing of the revised, draft South African Paediatric Food-Based Dietary Guidelines amongst mothers/caregivers of children aged 0–12 months in the Breede Valley sub-district, Western Cape province, South Africa

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: LM du Plessis --- , South Africa LC Daniels --- , South Africa HE Koornhof --- , South Africa ZL Solomon --- , South Africa M Loftus --- , South Africa LC Babajee --- , South Africa C Ronquest --- , South Africa B Kleingeld --- , South Africa CM Greener --- , South Africa KJ Burn --- , South Africa

Objectives: To assess the appropriateness and understanding of the revised, draft South African Paediatric Food-Based Dietary Guidelines (SA-PFBDGs) amongst mothers/caregivers of children aged 0–12 months. Exposure to guidelines with similar messages, barriers and enablers to following of the guidelines were...

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Field testing of the revised, draft South African Paediatric Food-Based Dietary Guidelines among mothers/caregivers of children aged 12–36 months in the Stellenbosch Municipality in the Western Cape province, South Africa

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: S Strydom --- , South Africa LM du Plessis --- , South Africa LC Daniels --- , South Africa

Objective: To assess the appropriateness and understanding of the revised, draft South African Paediatric Food-Based Dietary Guidelines (SA-PFBDGs) among mothers/caregivers of children aged 12–36 months. Exposure to guidelines with similar messages, barriers and enablers to following of the guidelines were...

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Field-testing of the revised, draft South African Paediatric Food-Based Dietary Guidelines among Siswati-speaking mothers/caregivers of children aged 0–36 months in Kabokweni, Mpumalanga province, South Africa

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: I Möller --- , South Africa LM du Plessis --- , South Africa LC Daniels --- , South Africa

Objectives: To determine the appropriateness and understanding of the revised, draft South African Paediatric Food-Based Dietary Guidelines (SA-PFBDG) among siSwati speaking mothers/caregivers of children aged 0–36 months. Previous exposure to guidelines with similar messages, barriers and enablers to following the...

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Field-testing of the revised, draft South African Paediatric Food-Based Dietary Guidelines among mothers/caregivers of children between the ages of 3 and 5 years in the Northern Metropole, City of Cape Town, Western Cape province, South Africa

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: SH Röhrs --- , South Africa LM du Plessis --- , South Africa

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Biogeographical patterns of grasses (Poaceae) indigenous to South Africa, Lesotho and Eswatini

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Marike Trytsman --- , South Africa Francuois L Muller --- , South Africa Craig D Morris --- , South Africa Abraham E van Wyk --- , South Africa

The ecological and economical importance of African grasses in sustaining animal production prompted studies to quantify the wealth of grass genetic resources indigenous to southern Africa. Plant collection and occurrence data were extracted from two southern African datasets, BODATSA and...

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Nutritional quality of Calobota sericea fodders. A preliminary assessment

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Francuois L Müller --- , South Africa Clement F Cupido --- , South Africa M Igshaan Samuels --- , South Africa

This study aimed to provide preliminary information regarding the nutritional quality of Calobota sericea, a preferred perennial legume forage species from the water-limited rangelands of South Africa. Calobota sericea plant samples were collected from the Namaqualand rangelands in the wet...

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Germination performance of different forage grass species at different salinity (NaCl) concentrations

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M Mangwane --- , South Africa IC Madakadze --- , South Africa FV Nherera-Chokuda --- , South Africa S Dube --- , Zimbabwe M Mndela --- , South Africa

Certain grasses show potential for the rehabilitation of coalmine spoils. Species selection and evaluation are used to guide the choice of the most appropriate grass species. This study evaluated the germination performance of seven forage grass species, with some represented...

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The interactions of a Chinese MNE with local institutions in sub-Sahara Africa and the implications for workforce management in the subsidiary

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Julius Nyiawung --- , Republic of Ireland

The unique nature of China’s interactions with Africa has been professed to respond better to the continent’s developmental and labor needs than the colonial and post-colonial engagements with Western countries. This has also been an impetus to the calls for...

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Institutions and brain drain: The role of business start-up regulations

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Patrick Marie Nga Ndjobo --- , Cameroon Noémia Certo Simões --- , Portugal

The objective of this article is to re-examine the relationship between African institutions and the migration phenomena. Specifically, we analyze the relationship between business start-up regulations and the brain drain from sub-Saharan African (SSA) countries towards those in OECD. Using...

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Modes of innovation used by SMMEs to tackle social challenges in South Africa

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nokuthula Lukhele --- , South Africa Ogundiran Soumonni --- , South Africa

Innovation has become critical for many countries in the Global South, particularly in responding to challenges such as slow economic growth, primary commodity dependence, and socio-economic inequalities. Since 1996, the National System of Innovation (NSI) approach has been adopted by...

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Institutional and technological innovation for the bamboo sector as an instrument for development and climate change resilience in Ethiopia

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Tefera Belay Endalamaw --- , Ethiopia Dietrich Darr --- , Germany

Given a huge resource base, numerous product and service functions, bamboo can top many of the species recommended for integrated rural development in the context of climate change. Despite this potential, there is gap in knowledge and innovation to make...

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Measuring transactional sex in different contexts: How do tools to measure this practice perform in rural South Africa?

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nambusi Kyegombe --- , United Kingdom Kirsten Stoebenau --- , USA Natsayi Chimbindi --- , South Africa Thembelihle Zuma --- , South Africa Maryam Shahmanesh --- , United Kingdom Janet Seeley --- , United Kingdom Joyce Wamoyi --- , Tanzania

Background: Adolescent girls and young women across sub-Saharan Africa are at disproportionate risk of HIV infection compared to their male counterparts. Transactional sex has been identified as an important proximate risk for infection in this population. Definitions and measures of...

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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 Africa

Although 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...

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An acoustic survey of beaked whale distribution at São Tomé and Príncipe, Gulf of Guinea, using an unmanned surface vessel

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Pierpoint --- , United Kingdom E Oliver --- , United Kingdom L Scala --- , United Kingdom D Hedgeland --- , United Kingdom

The first records of beaked whales, including Cuvier’s beaked whale Ziphius cavirostris, are reported from an acoustic baseline survey in the territorial waters of the Democratic Republic of São Tomé and Príncipe, Gulf of Guinea, West Africa. The survey was...

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The distribution and diversity of Leptocybe invasa (Hymenoptera: Eulophidae) and its gall associates in South Africa

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Caitlin R Gevers --- , South Africa Bernard Slippers --- , South Africa Ilaria Germishuizen --- , South Africa Gudrun Dittrich-Schrӧder --- , South Africa Brett P Hurley --- , South Africa

Leptocybe invasa is an invasive gall wasp and pest of Eucalyptus trees, which has become widely distributed in Africa, Asia, Europe and the Americas. Several other wasp species have been found to co-occur in L. invasa-induced galls. In South Africa,...

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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 Africa

Eucalypt 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...

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Diffusion of innovations: Theoretical perspectives and empirical evidence

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Bibhunandini Das --- , India

This paper attempts to review the theoretical and empirical perspectives of innovation-diffusion literature. The objective of this paper is to develop a heuristic framework by reviewing the existing studies for analyzing the diffusion of innovation and its outcome in different...

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Smart specialisation strategies in sub-Saharan Africa: Opportunities, challenges and initial mapping for Côte d’Ivoire

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mafini Dosso --- , Spain Alexander Kleibrink --- , Spain Monika Matusiak --- , Spain

This paper calls for a better integration of place-based, evidence-based and inclusive dimensions in the implementation of the Science, Technology and Innovation (STI) plans and industrial policies in sub-Saharan Africa. To this end, the analysis contrasts with and takes inspiration...

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Rural infrastructure and production efficiency of food crop farmers: Implication for rural development in Nigeria

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abeeb Babatunde Omotoso --- , Nigeria Saidat Adebola Daud --- , Nigeria Luke Okojie --- , Nigeria Abiodun Olusola Omotayo --- , South Africa

This study investigated the impact of rural infrastructure on production efficiency of food crop rural farmers in Ogun State, Nigeria. A total of 160 farming households from 20 communities in Abeokuta and Ilaro in Ogun State Agricultural Development Programme (OGADEP)...

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Digital innovations for transitioning to circular plastic value chains in Africa

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Muyiwa Oyinlola --- , UK Patrick Schröder --- , UK Timothy Whitehead --- , UK Oluwaseun Kolade --- , UK Kutoma Wakunuma --- , UK Soroosh Sharifi --- , Barry Rawn --- , Rwanda Victor Odumuyiwa --- , Nigeria Selma Lendelvo --- , Namibia Geoff Brighty --- , UK Bosun Tijani --- , Nigeria Tomi Jaiyeola --- , Rwanda Lukonga Lindunda --- , Zambia Radhia Mtonga --- , Zambia Soroush Abolfathi --- , UK

The paper analyzes the current state of plastic value chains in Africa and the potential of digital innovations adopted by African entrepreneurs to contributing to a circular plastic economy. We provide an overview of plastic waste trade to African countries...

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Using crown characterisation variables as indicators of the vigour, competition and growth of Brazilian pine

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Lorena Oliveira Barbosa --- , Brazil César Augusto Guimarães Finger --- , Brazil Emanuel Arnoni Costa --- , Brazil Otávio Camargo Campoe --- , Brazil Cristine Tagliapietra Schons --- , Brazil

Crown variables are used in growth and production models to increase the accuracy of estimates. These variables are costly and difficult to measure, mainly in dense native forests such as mixed ombrophilous forests (MOF), where Araucaria angustifolia is the predominant...

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Effect of fibre and vessel biometry on wood combustibility of native Miombo tree species

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Jonas Massuque --- , Brazil Kelly Iapuque Rodrigues de Sousa --- , Brazil Paulo Fernando Trugilho --- , Brazil

Fibres and vessels represent the largest proportion of anatomical elements in hardwood tree species. They exert significant effects on various properties of the wood, which, consequently, have several implications for the use of the wood. However, the effect of these...

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Machine learning techniques to estimate mechanised forest cutting productivity

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Saulo Boldrini Gonçalves --- , Brazil Nilton Cesar Fiedler --- , Brazil Jeferson Pereira Martins Silva --- , Brazil Gilson Fernandes da Silva --- , Brazil Mayra Luiza Marques da Silva --- , Brazil Luciano José Minette --- , Brazil Daniel Pena Pereira --- , Brazil Domingos Manuel Mendes Lopes --- , Portugal Evandro Ferreira da Silva --- , Brazil Antônio Henrique Cordeiro Ramalho --- , Brazil Jeangelis Silva Santos --- , Brazil Marcelo Otone Aguiar --- , Brazil Jose de Oliveira Melo Neto --- , Brazil Renisson Neponuceno de Araújo Filho --- , Brazil

The productivity of wood harvesting operations is one of the main viability indicators of the forestry enterprise, which is directly influenced by land, population, and operational planning characteristics. The variables that affect the productivity of harvesting machines are particularly difficult...

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Endogenous metabolic content of the cutting positions and ndole-3-butyric acid influence rooting of Toona ciliata var. pubescens stem cuttings

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Qiangqiang Cheng --- , China Dejia Ji --- , China Xiaoyan Guo --- , China Honglang Huang --- , China Lu Zhang --- , China

Toona ciliata var. pubescens (family Meliaceae) is an endangered species of mahogany endemic to China. It is now under Class II protection, and stem cuttings are an important means for its clonal propagation. However, the metabolic changes that occur in...

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Recruitment managers’ emotional intelligence and employment discrimination against people living with HIV/AIDS: The mediating role of stigma

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Michael A. Ofili --- , South Africa Erhabor S. Idemudia --- , South Africa Babatola D. Olawa --- , South Africa

This study examined the mediating role of stigma on relationship between emotional intelligence (EI) and employment discrimination against people living with HIV/AIDS (PLWHA). Participants included 1 112 recruitment managers (female = 49%, senior managers = 68%) drawn from both private...

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Factors associated with HIV testing among youth in a generalised hyperendemic setting: findings from a national survey in Eswatini

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Maswati S Simelane --- , Eswatini Garikayi B Chemhaka --- , Eswatini Mduduzi Colani Shongwe --- , Eswatini Mfundi PS Motsa --- , Taiwan Lindelwa P Dlamini --- , Taiwan

Aim: Even though Eswatini was the first country in Africa to achieve the UNAIDS 95-95-95 targets among people living with HIV nationally, youth aged 15–24 years lag behind in HIV testing. This study determined the overall prevalence of HIV testing...

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Frequency of exposure to the media is associated with levels of HIV-related knowledge and stigmatising attitudes among adults in Ghana

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Michael Boah --- , Ghana Daudi Yeboah --- , Ghana Mary Rachael Kpordoxah --- , Ghana Martin Nyaaba Adokiya --- , Ghana

Studies show that increased knowledge of the human immunodeficiency virus (HIV) is achieved through exposure to mass media, which then contributes to positive attitudes and behaviours towards people living with HIV and acquired immune deficiency syndrome (AIDS). This study examined...

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Risk and protective factors for depressive symptoms among the youth living with HIV in Namibia

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Eveline Ndinelao Kalomo --- , USA Dasha Shamrova --- , USA Jung Sim Jun --- , USA Mgori Nuru Kaddu --- , Namibia Amy Kalb --- , USA

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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 --- , Canada

Mentorship 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...

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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 Africa

The 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...

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Revisiting ‘A monograph on the Polychaeta of southern Africa’: establishing taxonomic research priorities in southern Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CA Simon --- , South Africa J Kara --- , South Africa DT Clarke --- , South Africa S Sedick --- , South Africa

Originally published in 1967, John H Day’s work ‘A monograph on the Polychaeta of southern Africa’ is still used widely to identify polychaetes. However, ongoing taxonomic revisions have revealed that several putative cosmopolitan or locally widespread taxa contained in the...

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Agricultural supply response for sunflower in South Africa (1947–2016): The partial Nerlovian framework approach

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kenneth Nhundu --- , South Africa Colleta Gandidzanwa --- , South Africa Petronella Chaminuka --- , South Africa Manana Mamabolo --- , South Africa Sandile Mahlangu --- , South Africa Moraka N. Makhura --- , South Africa

The study estimates sunflower supply response in South Africa using time series data from 1947 to 2016, modelled through the Nerlovian Partial Adjustment approach. Short- and long-run price elasticities of 0.238 and 0.313 respectively, suggest that farmers do not easily...

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Efficiency and productivity analysis of pineapple farmers in the Akwapim-South District of Ghana: A distance function approach

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Yaw Ofori-Appiah --- , Ghana Edward Ebo Onumah --- , Ghana Freda Elikplim Asem --- , Ghana

The study sought to analyze the efficiency and productivity of pineapple farmers in the Akwapim-South District of Ghana. The paper employs the stochastic translog distance function technique to analyze the influence of inputs on outputs whilst highlighting the technical efficiency...

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Relationship between innovation, regional institutions and firm performance: Micro-evidence from Africa

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mohammed Seid Hussen --- , Turkey Murat Çokgezen --- , Turkey

The main aim of this paper is to examine empirically the extent to which firm-specific action, innovation, and an external factor, the quality of regional institution, affect firms’ productivity. To this end, a firm-level dataset from 15 African countries was...

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Building markets between institutional discontinuities: Intermediation between formal and informal sectors in developing countries

Item type: Journal Article • Journal: Africa Journal of Management • Authors: John M. Luiz --- , UK Baldwin Guchu --- , South Africa

We explore the role of an intermediary, Palladium, in Zimbabwe as it bridges the divide between formal and informal sectors and the process through which it connects these sectors. We conduct in-depth, qualitative interviews structured around our case study of...

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Technological characterisation of wood from Australian red cedar after first thinning of a plantation at five years

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Kelvin Techera Barbosa --- , Brazil Andrey Pereira Acosta --- , Brazil Marília Lazarotto --- , Brazil Rafael Beltrame --- , Brazil Claudia Fernanda Lemons e Silva --- , Brazil Claudimar Sidnei Fior --- , Brazil

Australian red cedar (Toona ciliata M. Roem.) is a forest species planted in Brazil especially for lumber production. This study aimed to evaluate technological properties of the wood after selective first thinning of a plantation 5 years after planting. The...

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Nest-site characteristics of Levaillant’s Woodpecker Picus vaillantii endemic to North Africa

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Mehdi Badis --- , Tunisia Nabil Hamdi --- , Tunisia

Levaillant’s Woodpecker is an endemic species of the forests of north-western Africa. Through the cavities it digs, its presence is essential for the existence of other cavity nesters. However, despite its importance to its ecosystems, there are not much data...

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Monitoring an isolated population of Cape Parrots Poicephalus robustus in the Limpopo province, South Africa

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kate F Carstens --- , South Africa Kirsten Wimberger --- , South Africa Rowan Martin --- , United Kingdom David Letsoalo --- , South Africa Craig T Symes --- , South Africa

Cape Parrots Poicephalus robustus inhabit forest patches in South Africa with <1 800 individuals remain in the wild. A small, genetically isolated population occurs in the northern part of its range in the Limpopo province. There, annual counts indicated ∼100...

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Determinants of profit efficiency among smallholder sheep farmers in South Africa

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Y. S. Nyam --- , South Africa T. O. Ojo --- , South Africa J. A. Belle --- , South Africa A. A. Ogundeji --- , South Africa A. A. Adetoro --- , South Africa

Livestock production contributes significantly to the agricultural sector in South African partly because it is a source of cash income especially for smallholder farmers who depend on agriculture for their livelihood. This article analyzes the competitiveness and profitability of smallholder...

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How do institutionalized supplier development initiatives affect knowledge transfer and operational performance? Evidence from SME construction companies in Zambia

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Shem Sikombe --- , South Africa Maxwell Phiri --- , South Africa

The purpose of the study is, first, to examine how, and which institutionalized supplier development initiatives are associated with knowledge transfer, and, second, to investigate the mediating role of knowledge transfer between institutionalized supplier development and operational performance. Data were...

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Comparative Analysis of technical efficiency of wheat production in row planting and broadcasting methods: Empirical evidence from southern Ethiopia

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Assefa Ayele --- , Kassa Tarekegn --- ,

A Cobb–Douglas stochastic production frontier was used to analyze the technical efficiency of wheat producers under row planting and broadcasting methods in Hadiya zone, southern Ethiopia. The estimated results of the Cobb–Douglas frontier model show that the mean technical efficiency...

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Adoption of eco-bricks for housing: the case of Yelwa, Nigeria

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Uche Emmanuel Edike --- , Nigeria Omotayo Aina --- , Nigeria Adebowale Babalola Adeoye --- , Nigeria

The benefits of eco-bricks have been highlighted in contemporary literature. Notwithstanding, the adoption of eco-bricks masonry for the construction of houses in rural communities of low-income countries is significantly low. This study investigated the features, benefits, drivers and barriers to...

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Hotel managers’ perspectives of Airbnb operations in Accra Metropolis, Ghana

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Rosemary Wunpini Issaka --- , Ghana Abednego Kofi Bansah --- , Ghana Conrad-Joseph Wuleka Kuuder --- , Ghana

The study was conducted to ascertain hotel managers’ standpoints on the influx of Airbnb facilities in Ghana’s hospitality “arena” and the palpable effects. Employing a qualitative approach to data collection, the study made use of in-depth interview guides, engaging 33...

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How does (C)CAPM digest anomalies?

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Qi Shi --- , China

In 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...

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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 Africa

Movement 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...

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Fear at the top: killer whale predation drives white shark absence at South Africa’s largest aggregation site

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AV Towner --- , South Africa RGA Watson --- , South Africa AA Kock --- , South Africa Y Papastamatiou --- , United States M Sturup --- , South Africa E Gennari --- , South Africa K Baker --- , South Africa T Booth --- , South Africa M Dicken --- , South Africa W Chivell --- , South Africa S Elwen --- , South Africa T Kaschke --- , South Africa D Edwards --- , South Africa MJ Smale --- , South Africa

Risk-induced fear effects exerted by top predators are pervasive in terrestrial and marine systems, with lasting impacts on ecosystem structure and function. The loss of top predators can disrupt ecosystems and trigger trophic cascades, but the introduction of novel apex...

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Linking servant leadership to customer-oriented organisational citizenship behaviour: The moderating role of perceived interactional justice

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Shaping Qiu --- , USA Ruijuan Zhang --- , China Sami Jabarkhail --- , USA Larry M. Dooley --- , USA

This study examined the association between employee servant leadership perceptions and their customer-oriented organisational citizenship behaviour (OCB), and the influence of perceived interactional justice in this relationship. Participants were 708 hospitality industry employees from across China (female = 66.53%; mean...

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Wellness needs of academic employees: A case study of a South African university

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Frances L. Jasson --- , South Africa Marieta Du Plessis --- , South Africa Abigail Simons --- , South Africa

Academic employees at Higher Education Institutions face numerous challenges, ranging from workload, student protests, and emergency remote learning. We explored the lived work wellness experiences of South African academics and how well institutional wellness services were meeting these needs. Thirteen...

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Perceived stigma and self-identity among hearing impaired students: A brief report

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jianhong Zheng --- , China Ming Hong --- , China Sufeng Zhang --- , China Dmitry Grigoryevich Dzyakov --- , Belarus

This study examines the perceived stigma and its relationship to self-identity among students with hearing impairment. Students (n = 151) with hearing impairment (female = 49.67%; mean age = 13.87 years, SD = 1.26 years) completed the Individual Perceived Stigma...

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Citizen science survey of non-native Rose-ringed Parakeets Psittacula krameri in the Durban metropole, KwaZulu-Natal, South Africa

Item type: Journal Article • Journal: African Zoology • Authors: Tinyiko C Shivambu --- , South Africa Ndivhuwo Shivambu --- , South Africa Colleen T Downs --- , South Africa

The Rose-ringed Parakeet Psittacula krameri (Scopoli, 1769) has become invasive in several countries, including South Africa, mainly through the pet trade releases and escapees. We conducted an online questionnaire survey targeting the residents in Durban, eThekwini Municipality, KwaZulu-Natal, South Africa...

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Effect of biochar, farmyard manure, and lime on soil properties, and on growth and nutrient uptake of wheat on acidic soils in Southern Ethiopia

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Mekedes Lulu --- , Ethiopia Bekele Lemma --- , Ethiopia Legesse Hidoto --- , Ethiopia Asmare Melese --- , Ethiopia

This study assessed the effect of the interactions of biochar (BC), farmyard manure (FYM) and lime on soil chemical properties, and on different wheat attributes in Southern Ethiopia. The experimental design was a randomised complete block in three replications. The...

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Wangari Maathai’s Environmental Bible as an African Knowledge: Eco-spirituality, Christianity, and Decolonial Thought

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Adriaan van Klinken --- , UK

Recent scholarship has acknowledged the contribution of the environmental activist and Nobel Peace Prize Laureate, Wangari Maathai (1940–2011), to African ecological and decolonial thinking. As far as Maathai’s engagement with religion is concerned, scholarship emphasises her critique of Christianity for...

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Host specificity of the Pygmy Falcon Polihierax semitorquatus: a review

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: H Dieter Oschadleus --- , South Africa

The Pygmy Falcon Polihierax semitorquatus does not build its own nest but is an obligate user of the nests of colonial birds for roosting and breeding. The nests of various weavers and starlings have been listed, suggesting a wide range...

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Sexual and individual signatures are encoded in the temporal rate of Cape Gannet Morus capensis display calls

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kezia Bowmaker-Falconer --- , South Africa Andréa Thiebault --- , South Africa Maëlle Connan --- , South Africa Thierry Aubin --- , France Isabelle Charrier --- , France Pierre Pistorius --- , South Africa

Vocalisations play a vital role in animal communication, as they are involved in many biological functions such as mate selection, individual recognition and care of young. Seabirds often breed in large and dense colonies, making successful recognition between mates or...

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Institutions and training: A case of social franchising in Africa

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Judith Jacob Iddy --- University of Agder, Norway Ilan Alon --- University of Agder, Norway Benjamin C. Litalien --- School of Undergraduate Studies, University Blvd East, USA

The purpose of this paper is to explore two questions: how do institutions affect knowledge transfer in social franchises in Africa, and does training help social franchises respond to these challenges? Despite advances in the knowledge management literature, our understanding...

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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), Nigeria

Understanding 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...

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Nexus between perceptions of urban environmental planning and solid waste management practices in Debre Markos Town, Amhara Region, Northwest Ethiopia

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Genet Barklign --- University of Gondar, Ethiopia Kassahun Gashu --- University of Gondar, Ethiopia

Lack of integration between urban environmental planning and solid waste management is a challenge for cities in developing countries. The aim of the research was to analyze the nexus between local communities’ perceptions of urban environmental planning and solid waste...

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Profitability and technical efficiency of rice farms using traditional and improved milling machines: Evidence from Mali

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mamoutou Dit Djamba Sissoko --- Kwame Nkrumah University of Science and Technology, Ghana Kwasi Ohene-Yankyera --- Kwame Nkrumah University of Science and Technology, Ghana Camillus Abawiera Wongnaa --- Kwame Nkrumah University of Science and Technology, Ghana

The introduction of improved rice milling machines in rice producing areas in Mali is expected to minimize losses during processing. This study compares the profitability and technical efficiency of rice farms using traditional and improved rice milling machines in the...

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Wood extraction performance with a farm tractor in a mountainous region of Brazil: cycle time, productivity and costs of two different work crews

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Rafael Oliveira Brown --- , Brazil Kauê Augusto Oliveira-Nascimento --- , Brazil Renato César Gonçalves Robert --- , Brazil Daniel DeArmond --- , Brazil

Harvesting is a complex and expensive step within forestry operations. In mountainous terrain timber harvesting is complex due to the risks and limitations that the terrain imposes on traditional forms of wood extraction. The objective of this study was to...

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Negotiating Cultural Transformation in the Performance Practice of Narratives in Kenya

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Nancy Abigael Masasabi --- , Kenya

Culture is never static but continues to change. The narrative is one of the prosaic performances in cultures with an oral tradition. Such prosaic performances are culture bearers and signifiers. Change in societal setup has affected the contexts within which...

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Farmers’ knowledge, attitudes, and perceptions for the adoption of in-field rainwater harvesting (IRWH) technique in Thaba Nchu, South Africa

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Admire Rukudzo Dzvene --- , South Africa Weldemichael Tesfuhuney --- , South Africa Sue Walker --- , South Africa Andries Fourie --- , South Africa Cobus Botha --- , South Africa Gert Ceronio --- , South Africa

A systematic engagement strategy was used to identify contextual factors that prevent farmers from accepting the in-field rainwater harvesting (IRWH) technique. The purpose of the qualitative study is to assess farmers’ knowledge and attitudes about the technique, as well as...

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Building legitimacy and distinctiveness on Nigerian-Canadian transnational ventures’ websites

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Diane A. Isabelle --- , Canada Mika Westerlund --- , Canada Victoria Sajuyigbe --- ,

Achieving legitimacy in several markets is crucial for transnational ventures. Moreover, the literature on competitive strategy suggests that distinctiveness from competitors is a major source of competitive advantage for ventures. Nevertheless, our knowledge is sparse on how transnational ventures use...

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Distribution and breeding numbers of a recently split species, the West African Crested Tern Thalasseus albididorsalis

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jan Veen --- Wenum-Wiesel, The Netherlands Ahmed Amarejeyat --- Scientific Institute, Mohammed V University, Morocco Mohamed Aziz el Agbani --- Scientific Institute, Mohammed V University, Morocco Mohamed Camara --- Banc d'Arguin National Park, Mauritania Hanneke Dallmeijer --- Wenum-Wiesel, The Netherlands Yelli Diawara --- Banc d'Arguin National Park, Mauritania Moussa Sega Diop --- , Senegal Abdou Diouf --- , Senegal Eelke Folmer --- , The Netherlands Nicolas Gomis --- , Senegal Valentin Mansali --- , Senegal Hamilton Monteira --- , Guinea Bissau Moussa Samb --- , Senegal Lamin Manneh --- , The Gambia Effoleming Manga --- , Senegal Thor Veen --- Quest University Canada, Canada Wim C Mullié --- , Senegal

This study investigated the distribution, numbers and conservation threats of the West African Crested Tern, which was recently elevated to full species after it was split from the Royal Tern with an American and African subspecies. In the period 1998–2019,...

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Seed powder extract of physic nut (Jatropha curcas) as a biopesticide for weevils (Callosobruchus maculatus) in stored cowpea (Vigna unguiculata)

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: F. O. Ifeanyieze --- University of Nigeria, Nigeria H. I. Ameh --- University of Nigeria, Nigeria T. E. Ejiofor --- University of Nigeria, Nigeria M. E. Ikehi --- University of Nigeria, Nigeria F. M. Onu --- University of Nigeria, Nigeria

The study explored the effectiveness of physic nut (Jatropha curcas) in the control of cowpea weevils (Callosobruchus maculatus). The repellence, mortality rates and progeny emergence of weevils were observed, as well as germination viability of the treated cowpea seeds. The...

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Association between plastic cards and mobile banking transactions in Kenya

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Jasdeep Kaur --- University of Delhi, India

Mobile banking has emerged as most popular mode of electronic banking in Kenya and people prefer to use it due to ease and convenience. Though mobile transactions are preferred by a large section of people, plastic cards are still widely...

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Exploring the relationship between core self-evaluation and employee innovative behaviour: The role of emotional factors

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: He Ding --- North China Electric Power University, China Enhai Yu --- North China Electric Power University, China Yanbin Li --- North China Electric Power University, China

This study sought to examine the roles of emotional factors of trait emotional intelligence and emotional exhaustion in the relationship between employee core self-evaluations and employee innovative behaviour. Data were from a sample of 299 employees of three manufacturing companies...

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Nearly para-Kähler geometry on Lie groups

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Leila Nourmohammadifar --- Arak University, Iran Esmaeil Peyghan --- Arak University, Iran

In this paper, we introduce left-invariant (strict) nearly para-Kaähler structures on Lie groups (nearly para-Kähler Lie algebras) and present some properties of them. We prove the existence of a unique connection in terms of the characteristic connection on these Lie...

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Natural recolonisation of sub-Antarctic Marion Island by Common Diving Petrels Pelecanoides urinatrix

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Maëlle Connan --- Marine Apex Predator Research Unit (MAPRU), Institute for Coastal and Marine Research, Nelson Mandela University, South Africa Stefan Schoombie --- Marine Apex Predator Research Unit (MAPRU), Institute for Coastal and Marine Research, Nelson Mandela University, South Africa Janine Schoombie --- FitzPatrick Institute of African Ornithology, DSI-NRF Centre of Excellence, University of Cape Town, South Africa Ben Dilley --- FitzPatrick Institute of African Ornithology, DSI-NRF Centre of Excellence, University of Cape Town, South Africa Peter G Ryan --- FitzPatrick Institute of African Ornithology, DSI-NRF Centre of Excellence, University of Cape Town, South Africa

Nocturnal burrow-nesting seabirds are notoriously difficult to study and can go unnoticed for years in remote areas. One of these species is the Common Diving Petrel Pelecanoides urinatrix, which has a circumpolar breeding distribution in the Southern Ocean, including at...

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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, Nigeria

HIV-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...

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Slow repair: gender and restorative justice in Zimbabwe

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Shannon Morreira --- University of Cape Town, South Africa

This article reports on a ceremony gone awry at Kufunda Village, Zimbabwe, in which women had refused to follow a gendered cultural script of forgiveness and had instead released rather than slaughtered a chicken. They thus reinscribed old symbols with...

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Patterns of fish distribution in tropical rock pools at Príncipe Island, Gulf of Guinea

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Azevedo e Silva --- University of Lisbon, Portugal AJ Almeida --- University of Lisbon, Portugal M Cravo --- University of Lisbon, Portugal MP Pais --- University of Lisbon, Portugal Y Santos --- , São Tomé e Príncipe J Paula --- University of Lisbon, Portugal

Little is known about the ichthyofauna from intertidal rock pools of the west coast of Africa, especially in the Gulf of Guinea. Rock pools are characteristic habitats of the intertidal zone of structurally complex rocky shores, adding important niche space...

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“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 Africa

Tracing 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...

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Organisational justice and workplace deviance behaviour among bank workers in Nigeria: the role of perceived organisational support as a moderator

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Eze C. Ifeanyichukwu --- , Nigeria Ike O. Obinna --- University of Nigeria, Nigeria Obiageli Omeje --- Enugu State University of Science and Technology Enugu, Nigeria Ejike Okonkwo --- Enugu State University of Science and Technology Enugu, Nigeria Attamah Ikechukwu --- University of Nigeria, Nigeria Chinwendu M. Okoro --- Coal City University, Nigeria

The study investigated the relationship between organisational justice (OJ: distributive, interactive, and procedural) and work-place deviance (WPD) behaviours and the role of perceived organisational support (POS) in that relationship. Participants were bank workers from South-east Nigeria (n = 482; male...

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Assessment of the acoustic change in heat-treated Pinus elliottii and Bertholletia excelsa wood from homogeneous plantations in Brazil

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Daiana Sousa de Jesus --- Federal Rural University of Rio de Janeiro, Brazil Jonnys Paz Castro --- Federal Rural University of Rio de Janeiro, Brazil Taiane Guedes --- Universidade Federal de Lavras, Brazil José Reinaldo Moreira da Silva --- Universidade Federal de Lavras, Brazil João Vicente de Figueiredo Latorraca --- Federal Rural University of Rio de Janeiro, Brazil Alexandre Miguel do Nascimento --- Federal Rural University of Rio de Janeiro, Brazil

Heat treatment has been used in wood to improve its technological properties, but due to the complex nature of wood, it is necessary to carry out analyses to confirm the changes, and also to investigate which temperatures and protocols are...

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Normal ordering in the shift algebra and the dual of Spivey’s identity

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Matthias Schork --- , Germany

Spivey’s Bell number identity involving Stirling numbers of the second kind was derived by Spivey considering set partitions. Since its original derivation it has been derived (and generalized) by many authors using diﬀerent techniques. In particular, Katriel gave a proof...

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The evaluation of immediate behavioural outcomes of the syndromic case management approach for the treatment of patients with sexually transmitted infections at PHC centres in South Africa: Knowledge, attitudes, beliefs and sexual behaviour

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Leickness Simbayi --- Behavioural and Social Aspects of HIV/AIDS, Human Sciences Research Council in South Africa, Anna Strebel --- Sekao-Headways Research Training and Development, Michelle Andipatin --- Department of Psychology, University of the Western Cape, Cheryl Potgieter --- Department of Psychology, Pretoria University, Kopano Ratele --- Psychology Department, University of the Western Cape, Nokuthula Shabalala --- Department of Psychology, University of the Western Cape, Tamara Shefer --- Women and Gender Studies Programme, University of the Western Cape, Tanya Wilson --- , South Africa

This study aimed to determine the immediate behavioural outcomes of the WHO syndromic case management model for STIs in the public health sector in South Africa, on the levels of knowledge, attitudes and beliefs, and behavioural practices (KABPs) concerning STIs...

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Stigma, discrimination and the implications for people living with HIV/AIDS in South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Donald Skinner --- HSRC, Sakhumzi Mfecane --- HSRC,

Stigma and discrimination play significant roles in the development and maintenance of the HIV epidemic. It is well documented that people living with HIV and AIDS experience stigma and discrimination on an ongoing basis. This impact goes beyond individuals infected...

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Managing AIDS stigma

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: William L. Holzemer --- University of California, Leana R. Uys --- College of Health Sciences, University of KwaZulu-Natal,

According to anecdotal reports, AIDS stigma and discrimination continue to influence people living with and affected by HIV disease as well as their health care providers, particularly in southern Africa where the burden of AIDS is so significant. Stigma is...

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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, UK

A 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...

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Prevention of HIV and other STIs in rural Senegal: a study of prevention-related events collected by sentinel observers

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Abdoulaye Sidibé Wade --- Division SIDA, Senegalese Ministry of Health, Catherine Enel [B0002] Emmanuel Lagarde --- French National Institute for Health research (INSERM),

We conducted a study of AIDS/STI prevention-related events based on a network of sentinel observers over a 35-month period in three rural communities of Senegal (May 2000 – March 2003). In one of these communities we also conducted a population-based...

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Perceived HIV/AIDS impact among staff in tertiary institutions in the Eastern Cape, South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Nancy Phaswana-Mafuya --- Social Aspects of HIV/AIDS and Health, Human Sciences Research Council, Karl Peltzer --- Social Aspects of HIV/AIDS and Health, Human Sciences Research Council,

A descriptive questionnaire-based study was undertaken among staff in tertiary institutions in the Eastern Cape Province. The objective of the study was to explore perceived HIV/AIDS impact on duties at work, staff morale, job satisfaction and workload among a proportionate...

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A comparative analysis of perceived stigma among HIV-positive Ghanaian and African American males

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kwabena A Poku --- Health Services Management Department, University of Ghana Business School, J Gary Linn --- School of Nursing, Tennessee State University, Betsy L Fife --- School of Nursing, University of Indiana-Indianapolis, Sherry Azar --- School of Nursing, Tennessee State University, Lorna Kendrick --- School of Nursing, Tennessee State University,

The purpose of this paper was to address two questions: (i) Do Ghanaian and African American males with HIV/AIDS experience different types and degrees of stigma? and (ii) Is the impact of stigma associated with HIV/AIDS on the self different...

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HIV/AIDS through the lens of Christianity: Perspectives from a South African urban support group

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Khumbulani Hlongwana --- South African Medical Research Council (MRC), Malaria Research Programme, Sibongile Sylvia Mkhize --- Research Programme of Health Systems Trust (HST),

HIV is one of the most obscure viruses that humankind has had to face in recent times. Compounding this obscurity are often contesting perspectives on what it means to be HIV infected, and these perspectives are largely constituted by people's...

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Widowhood in the era of HIV/AIDS: A case study of Slaya District, Kenya

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Constance Ambasa-Shisanya --- Family Health International,

Luo women are believed to acquire contagious cultural impurity after the death of their husbands that is perceived as dangerous to other people. To neutralise this impure state, a sexual cleansing rite is observed. In the indigenous setting, the ritual...

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Understanding and measuring AIDS-related stigma in health care settings: A developing country perspective

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Vaishali Sharma Mahendra --- Population Council, India Laelia Gilborn --- Population Council, Shalini Bharat --- School of Health Systems Studies, Tata Institute of Social Sciences, India Rupa Jakharia Mudoi --- Lawyers Collective HIV/AIDS Unit, Bangalore Office, India Indrani Gupta --- Health Policy Research Unit, Institute of Economic Growth, India Bitra George --- Stigma Reduction Operations Research Study, SHARAN, Luke Samson --- SHARAN, Celine Costello Daly --- Asia Pacific Regional Office of Family Health International, Julie Pulerwitz --- Horizons Program/Population Council,

AIDS-related stigma and discrimination remain pervasive problems in health care institutions worldwide. This paper reports on stigma-related baseline findings from a study in New Delhi, India to evaluate the impact of a stigma-reduction intervention in three large hospitals. Data were...

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A comprehensive programme addressing HIV/AIDS and gender based violence

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Madri Jansen van Rensburg --- Southern African Development Community,

A survey was administered to 304 respondents participating from three areas near Welkom, South Africa. Face-toface interviews were conducted with women from randomly selected households to evaluate the impact of a service provision programme targeting women living with HIV/AIDS and...

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The role of HIV/AIDS committees in effective workplace governance of HIV/AIDS in South African small and medium-sized enterprises (SMEs)

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Jocelyn R Vass --- Human Science Research Council,

The primary purpose of this study was to assess the role, status and scope of workplace HIV/AIDS committees as a means of effective workplace governance of the HIV/AIDS impact, and their role in extending social protective HIV/AIDS-related rights to employees...

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Perceptions of acceptability and utility of microbicides in Ghana, West Africa: A qualitative, exploratory study

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Amanda E Tanner --- Section of Adolescent Medicine, Indiana University School of Medicine,

Vaginal microbicides, substances that may substantially decrease transmission of sexually transmitted infections (STI) including human immunodeficiency virus (HIV), are currently in clinical trials. They are being presented as woman-initiated prevention methods that have the potential to be used without partners'...

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Diagnostic social de l'infection à VIH/Sida et stratégies endogènes de prévention à Gaoua, Burkina Faso

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Donmozoun Télesphore Somé --- HIV/AIDS & Reproductive Health Department of Centre MURAZ,

Despite sensitising and prevention messages, women still remain concerned about AIDS in developing countries. How do they perceive the illness and methods of prevention? The objective of this study was to assess the social diagnosis of HIV/AIDS, and endogenous strategies...

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The political context of AIDS-related stigma and knowledge in a South African township community

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Brian Forsyth --- Yale University, Alain Vandormael --- Department of Sociology, University of Pretoria, Trace Kershaw --- Yale University School of Public Health, Janis Grobbelaar --- Department of Sociology, University of Pretoria,

The purpose of this study was to examine the presentation of AIDS-related stigma and knowledge within the political context of the South African government's response to the AIDS epidemic. It was during the 2000 – 2004 period that key government...

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Hearing community voices: grassroots perceptions of an intervention to support health volunteers in South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Catherine Campbell --- London School of Economics, Yugi Nair --- Centre for HIV/AIDS Networking (HIVAN), University of KwaZulu-Natal, Sbongile Maimane --- HIVAN, University of KwaZulu-Natal, Andy Gibbs --- Health Economics and HIV/AIDS Research Division (HEARD), University of KwaZulu-Natal,

With the scarcity of African health professionals, volunteers are earmarked for an increased role in HIV/AIDS management, with a growing number of projects relying on grassroots community members to provide home nursing care to those with AIDS – as part...

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Measuring HIV stigma for PLHAs and nurses over time in five African countries

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: William L Holzemer --- School of Nursing, University of California, Lucy N Makoae --- Faculty of Health Sciences in the Department of Nursing, National University of Lesotho, Minrie Greeff --- Africa Unit for Trans-disciplinary Health Research of the Faculty of Health Science, North-West University, Priscilla S Dlamini --- Faculty of Health Sciences, University of Swaziland, Thecla W Kohi --- Muhimbili University of Health and Allied Sciences, Maureen L Chirwa --- University of Malawi, Joanne R Naidoo --- School of Nursing, University of KwaZulu-Natal, Kevin Durrheim --- University of KwaZulu-Natal, Yvette Cuca --- School of Nursing, University of California, Leana R Uys --- Faculty of Health Sciences, University of KwaZulu-Natal,

The aim of this article is to document the levels of HIV stigma reported by persons living with HIV infections and nurses in Lesotho, Malawi, South Africa, Swaziland and Tanzania over a 1-year period. HIV stigma has been shown to...

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Stigma, identity and resistance among people living with HIV in South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Jane Goudge --- Centre for Health Policy, School of Public Health, University of the Witwatersrand, Lenore Manderson --- Faculty of Medicine, Nursing and Health Sciences, and Faculty of Arts, Monash University, Australia Bulelwa Ngoma --- Centre for Health Policy, Helen Schneider --- Centre for Health Policy and Professor Extraordinarius, University of the Free State,

AIDS-related stigma can cause delays in testing, poor treatment adherence, and greater numbers of new infections. Existing studies from low- and middle-income countries focus on the negative experiences of stigma, and few document resistance strategies. In this article we document...

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Provider-initiated HIV testing in health care settings: Should it include client-centered counselling?

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Susan M Kiene --- Medicine and Community Health (Research), Brown University, Michael Stein --- Medicine and Community Health, Brown University, USA Moses Bateganya --- Makerere University (Internal Medicine), Rhoda Wanyenze --- Makerere University School of Public Health-CDC HIV Fellowship Programme, Uganda Kenneth Mayer --- The Fenway Institute/Fenway Health, Haruna Lule --- Gombe Hospital, Uganda

To increase access to HIV testing, the WHO and CDC have recommended implementing provider-initiated HIV testing (PITC). To address the resource limitations of the PITC setting, WHO and CDC suggest that patient-provider interactions during PITC may need to focus on...

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Knowledge of HIV/AIDS and attitudes towards people living with HIV among the general staff of a public university in Malaysia

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Yvonne Tee --- Universiti Putra Malaysia, Malaysia Mary Huang --- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia , Malaysia

Stigma and discrimination towards people living with HIV have been widely documented, and have extended their impact into the workplace. Stigmatising attitudes towards people living with HIV (PLHIV) in the workplace significantly hinder HIV prevention efforts and indirectly affect national...

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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...

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A comparison in HIV-associated stigma among healthcare workers in urban and rural Gujarat

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kartavya J Vyas --- University of California, Gulab R Patel --- Government Medical College, Deepak Shukla --- Surat New Civil Hospital ART Therapy Center, William C Mathews --- University of Southern California (USC),

The present study measures levels of stigma within health care settings in urban and rural Gujarat, in an attempt to understand how this may have contributed to the state's increasing HIV incidence. Two sites were studied: a rural hospital in...

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An assessment of sex work in Swaziland: barriers to and opportunities for HIV prevention among sex workers

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Shalote Chipamaunga --- Faculty of Health Sciences, Centre for Health Science Education, University of the Witwatersrand, Adamson S Muula --- University of Malawi College of Medicine, Ronald Mataya --- Loma Linda University School of Public Health, USA

The HIV situation in virtually all southern African countries is a generalised epidemic. Despite the fact that almost all adult age and social groups have high HIV prevalence estimates, sex workers are disproportionally affected, with prevalence estimates higher than the...

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Adoption of formal HIV and AIDS workplace policies: An analysis of industry/sector variations

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Rhoda Bakuwa --- Human Resources Management, Malawi Polytechnic,

Addressing HIV and AIDS is the responsibility of many stakeholders including private sector companies. However, increasing evidence reveals that the majority of companies around the world are yet to acknowledge and respond to HIV and AIDS as a workplace issue...

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‘When I get better I will do the test’: Facilitators and barriers to HIV testing in Northwest Region of Cameroon with implications for TB and HIV/AIDS control programmes

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Nwarbébé Barnabas Njozing --- Public Health at the Division of Epidemiology and Global Health, Umeå University, Sweden Kerstin E Edin --- Unit for Epidemiology and Global Health, Department of Public Health and Clinical Medicine, Umeå Centre of Gender Studies, University, Anna-Karin Hurtig --- Public Health at the Division of Epidemiology and Global Health, Umeå University, Sweden

The World Health Organization has recommended collaborative activities between TB and HIV programmes with routine counselling and testing for HIV among TB patients in order to improve the uptake of HIV services. We carried out qualitative research interviews with 21...

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Determinants of extramarital sex by men in Tanzania: A case study of Mbeya region

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Maurice CY Mbago --- Department of Statistics and Member of the Demographic Training Unit, University of Dar es Salaam, Tanzania Francis J Sichona --- Department of Statistics and Member of the Demographic Training Unit, University of Dar es Salaam, Tanzania

This paper attempts to identify some factors associated with extramarital sex by men in the Mbeya region of Tanzania using data from a survey conducted in 2003/2004. The choice of Mbeya region was prompted by the fact that it has...

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HIV counselling and testing utilisation and attitudes of male inmates in a South African prison

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Lelaka C Motshabi [B0001] Supa Pengpid --- Department of Health System Management and Policy, University of Limpopo, South Africa Karl Peltzer --- Human Sciences Research Council, South Africa

The Department of Correctional Services Policy on the management of HIV and AIDS for offenders include voluntary counselling and testing (VCT) for HIV as one of the priorities in the rehabilitation of inmates. The aim of this study was to...

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Modelling level, trend and geographical variations in stigma and discrimination against people living with HIV/AIDS in Nigeria

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Samson B Adebayo --- Monitoring and Evaluation Division, Society for Family Health, Richard Fakolade [B0002] Jennifer Anyanti --- Society for Family Health, Bright Ekweremadu --- Society for Family Health, Olaronke Ladipo --- Society for Family Health, Augustine Ankomah --- Applied Population Research, University of Exeter, UK

People living with HIV and AIDS (PLHA) often face stigma and discrimination. Stigma is a powerful tool for social control and PLHA are to varying degrees stigmatised against. Consequences of stigma and discrimination against PLHA may result in low turn-out...

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A qualitative exploration of resilience in pre-adolescent AIDS orphans living in a residential care facility

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Anja Pienaar --- Centre for Health Systems Research & Development, Zendré Swanepoel --- Psychology of Education, University of the Free State, Hendrik van Rensburg --- CHSR&D (UFS), Christo Heunis --- CHSR&D (UFS),

This article presents the findings of a study among a small group of South African AIDS orphans living in a residential care facility, Lebone Land. The research was conducted between June and September 2006. A qualitative, exploratory study consisting of...

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A systematic review of HIV/AIDS-related stigma and discrimination in India: Current understanding and future needs

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Shalini Bharat --- School of Health Systems Studies, Tata Institute of Social Sciences, India

HIV/AIDS-related stigma is recognised as a major barrier to HIV prevention efforts and an impediment to mitigating its impact on individuals and communities. This paper reviews the existing research literature on AIDS stigma in India with the objective of documenting...

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HIV/AIDS stigma at the workplace: Exploratory findings from Pakistan

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Sajid Bashir --- Human Resource Management, Mohammad Ali Jinnah University, Pakistan

People living with HIV/AIDS (PLHA) are stigmatised socially. They are devalued and considered like outcasts by having lesser opportunities for education, treatment and housing, and in an organisational context they get reduced opportunities of selection, promotion and income. The phenomena...

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Perceptions of door-to-door HIV counselling and testing in Botswana

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karen Kroeger --- US Centers for Disease Control and Prevention (CDC), Allan W Taylor --- US Centers for Disease Control and Prevention (CDC), Heather M Marlow --- University of North Carolina at Chapel Hill, USA Douglas T Fleming --- Bristol-Myers Squib Company, USA Vanessa Beyleveld --- Premiere Personnel, Botswana Mary Grace Alwano --- CTS Global Inc., Mabel Tebogo Kejelepula --- Ministry of Health, Botswana Kentsenao Busang Chilume --- Botswana National AIDS Coordination Agency, Botswana Dawn K Smith --- US Centers for Disease Control and Prevention (CDC), Thierry Roels --- CDC's Division of Global HIV/Aids Programme, Peter Kilmarx --- US Centers for Disease Control and Prevention (CDC), Zimbabwe

Prevalence of HIV infection in Botswana is among the highest in the world, at 23.9% of 15 – 49-year-olds. Most HIV testing is conducted in voluntary counselling and testing centres or medical settings. Improved access to testing is urgently needed...

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Ambiguous diagnosis, futile treatments and temporary recovery: Meanings of medical treatment among HIV/AIDS family caregivers providing care without ARVs

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Mokhant&scaron;o Makoae --- Human Sciences Research Council (HSRC),

The capacity of countries with high HIV and AIDS prevalence to provide antiretroviral treatment and care for all people who need support remains a public health challenge. In Lesotho, there are improvements in this area but the high proportion of...

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People's perceptions of HIV/AIDS as portrayed by their labels of the disease: the case of Botswana

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Joyce T Mathangwane --- University of Botswana,

It is typical of societies to come up with their own labels or names to any phenomenon that may befall them in the course of their life time. Human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) has been no exception to this...

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An evaluation of a refresher training intervention for HIV lay counsellors in Chongwe District, Zambia

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Charles Msisuka --- , Zambia Ikuma Nozaki --- National Center for Global Health and Medicine, Japan Kazuhiro Kakimoto --- Osaka Prefecture University, Motoko Seko --- Japan International Cooperation Agency (JICA), Japan Mercy M S Ulaya --- National AIDS Council, Zambia

To address a severe shortage of human resources for health, the Zambian Ministry of Health has begun to make use of lay counsellors for HIV counselling and testing. However, their skills and knowledge rarely have been reviewed or refreshed. We...

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Social impact of HIV/AIDS on clients attending a teaching hospital in Southern Nigeria

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Ofonime E. Johnson [d125e19]

People living with human immunodeficiency virus and acquired immune deficiency syndrome (PLWHA) face numerous social challenges. The objectives of this study were to assess the level of self-disclosure of status by PLWHA, to describe the level and patterns of stigma...

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Risk factors associated with HIV infection among young persons aged 15–24 years: Evidence from an in-depth analysis of the 2005–06 Zimbabwe Demographic and Health Survey

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Joshua Kembo [d118e18]

This study focuses on factors that predispose young persons aged 15–24 years in Zimbabwe to infection from HIV. Using the Mosley and Chen framework, multivariate modelling was used to assess the effect of demographic, socio-economic and behavioural factors on the...

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Social and cultural aspects of HIV and AIDS in West Africa: A narrative review of qualitative research

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Helle Samuelsen [d133e18] Ole Norgaard Lise Rosendal Ostergaard

With the increasing focus on the role of social aspects of the HIV epidemic in sub-Saharan Africa, the need for an overview of existing research dealing with such issues has become more urgent. The objective of this article is to...

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Predictors of parent–child communication among a nationally representative sample in Nigeria

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Katrina Berg [d113e18] Christina J. Sun Stella Babalola

This study explores what constructs are associated with parent–adolescent communication about AIDS/sexually transmitted infections (STIs) and sexual relationships in Nigeria. The analyses use data from the 2007 National HIV/AIDS and Reproductive Health Survey on 2593 men and women who had...

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Stigma as ‘othering’ among Christian theology students in South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Adrian D. Van Breda [d74e19]

HIV is a health and developmental crisis that has profoundly challenged the Christian church in sub-Saharan Africa. Responding to stigma and prejudice against HIV and people living with HIV and AIDS has been a major concern of theologians and Christian...

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Sanctuary or double-edged sword? Challenges confronting adolescents living at Nkosi's Haven in Johannesburg, South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Nkosiyazi Dube Eleanor Ross [d59e26]

Living in an institution associated with HIV and AIDS is likely to exacerbate difficulties experienced by teenagers who have to cope with the normal stresses of adolescence. The aim of the study was to explore the challenges that adolescents living...

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Using HIV&AIDS statistics in pre-service Mathematics Education to integrate HIV&AIDS education

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Linda van Laren [d85e14]

In South Africa, the HIV&AIDS education policy documents indicate opportunities for integration across disciplines/subjects. There are different interpretations of integration/inclusion and mainstreaming HIV&AIDS education, and numerous levels of integration. Integration ensures that learners experience the disciplines/subjects as being linked and...

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Experience of stigma and discrimination and the implications for healthcare seeking behavior among people living with HIV/AIDS in resource-limited setting

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Taddese Alemu Sibhatu Biadgilign [d367e28] Kebede Deribe Horacio Ruiseñor Escudero

Background: Stigma and discrimination can limit access to care and treatment services. Stigma hides HIV from the public, resulting in reduced pressure for behavioral change. For effective behavior change, empirically grounded and theory-based behavioral change approaches are fundamental as a...

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Perception of HIV/AIDS among the Igbo of Anambra State, Nigeria

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Caroline Okumdi Muoghalu [d353e19] Samuel Ayodele Jegede

Perception is fundamental in the fight against stigmatization of people living with HIV/AIDS (PLHIV). Perception generally influences discriminatory attitudes towards PLHIV which exacerbates their problems and quickens the degeneration of the disease from HIV to AIDS. This study examined the...

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Consensus on context-specific strategies for reducing the stigma of human immunodeficiency virus/acquired immunodeficiency syndrome in Zambézia Province, Mozambique

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Abraham Mukolo --- , , USA Isabel Torres --- , Mozambique Ruth M. Bechtel --- , Mozambique Mohsin Sidat --- , , Mozambique Alfredo E. Vergara --- , USA

Stigma has been implicated in poor outcomes of human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) care. Reducing stigma is important for HIV prevention and long-term treatment success. Although stigma reduction interventions are conducted in Mozambique, little is known about the...

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Disclosure in times of ART: A relational analysis of social practices

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Anita Hardon [d327e18] Alice Desclaux Joe Lugalla

The reach of HIV counseling and testing has grown rapidly since the 2000s, particularly since 2007 when provider-initiated counseling and testing was implemented alongside voluntary counseling and testing and testing for the prevention of mother-to-child transmission. Nevertheless, we still know...

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The social and gender context of HIV disclosure in sub-Saharan Africa: A review of policies and practices

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Sarah Bott Carla Makhlouf Obermeyer [d314e29]

This paper reviews the legal and policy context of HIV disclosure in sub-Saharan Africa, as well as what is known about rates, consequences and social context of disclosure, with special attention to gender issues and the role of health services...

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To tell or not to tell: Negotiating disclosure for people living with HIV on antiretroviral treatment in a South African setting

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Pride Linda [d302e18]

Disclosure of HIV status occurs for a variety of reasons and in various contexts, such as to sexual partners to enable safer sexual choices, to health-care workers to access treatment and care services and to family and community members to...

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Partager l'information sur son statut sérologique VIH dans un contexte de polygamie au Sénégal

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Khoudia Sow [d345e18]

In Senegal, where HIV prevalence is less than 1% and stigma remains important, 40% of marriages are polygamic. The purpose of this article is to describe and analyze the motivations, benefits and constraints related to HIV disclosure, and to explore...

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L'annonce du statut VIH de l'enfant : expériences des mères et interprétations des soignants au Burkina Faso Disclosure of infant HIV status: mothers' experiences and health workers' interpretations in Burkina Faso

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Alice Desclaux [d305e18] Chiara Alfieri

L'annonce du statut sérologique d'un enfant constitue une situation particulière qui ne peut pas obéir aux recommandations générales pour le counseling définies pour des adultes; elle est très peu normée. Alors que les programmes de Prévention de la Transmission Mère-Enfant...

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Is HIV/AIDS a consequence or divine judgment? Implications for faith-based social services. A Nigerian faith-based university's study

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Israel B. Olaore --- , , Nigeria Augusta Y. Olaore --- , , Nigeria

A contemporary reading of Romans 1:27 was disguised as a saying by Paul Benjamin, AD 58 and administered to 275 randomly selected members of a private Christian university community in south western Nigeria in West Africa. Participants were asked to...

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Prevalence and mitigation strategies of HIV/AIDS infection risks in Namibian tertiary education institutional hostels

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Roderick F. Zimba --- , Namibia Gilbert N. Likando --- , Namibia

The purpose of this study was to investigate risk factors that could promote HIV infection amongst adolescents and young adults living in tertiary educational institutional hostels in Namibia. Employing structured questionnaires and focus group discussions, we sought to answer questions...

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Understanding of the risk of HIV infection among the elderly in Ga-Rankuwa, South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Eucebious Lekalakala-Mokgele --- , , South Africa

The literature pertaining to the elderly shows that HIV infection among this population is on the increase, suggesting that the elderly population engages in activities risky for HIV infection. Reports on such behaviour include frequent sexual relations with much younger...

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My secret: The social meaning of HIV/AIDS stigma

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: N. Judgeo --- , South Africa K.P. Moalusi --- , South Africa

This study uses Goffman's [1963. Stigma: Notes on the Management of Spoiled Identity, New Jersey, Prentice-Hall] theory of stigma as an intellectual scaffold to help understand the social meaning of HIV/AIDS stigma from People Living with HIV/AIDS. The study adopts...

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Perceptions about the acceptability and prevalence of HIV testing and factors influencing them in different communities in South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Yoliswa Ntsepe --- , , South Africa Leickness C. Simbayi --- , , South Africa Olive Shisana --- , South Africa Thomas Rehle --- , , South Africa Musawenkosi Mabaso --- , , South Africa Nolusindiso Ncitakalo --- , , South Africa Alicia Davids --- , , South Africa Yogandra Dhee Naidoo --- , , South Africa

HIV counselling and testing (HCT) is considered important because it is an entry point to a comprehensive continuum of care for HIV/AIDS. The South African Department of Health launched an HCT campaign in April 2010, and this reached 13,269,746 people...

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Acceptabilité du test VIH proposé aux nourrissons dans les services pédiatriques, en Côte d'Ivoire, Significations pour la couverture du diagnostic pédiatrique

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Maxime Oga --- , Côte d'Ivoire Hermann Brou --- , , Côte d'Ivoire Hortense Dago-Akribi --- , , Abidjan-Cocody Patrick Coffie --- , , Côte d'Ivoire Clarisse Amani-Bossé --- , Côte d'Ivoire Didier Ékouévi --- , , Côte d'Ivoire Vincent Yapo --- , , Côte d'Ivoire Hervé Menan --- , , Côte d'Ivoire Camille Ndondoki --- , , France M. Timité-Konan --- , Côte d'Ivoire Valériane Leroy --- , , France

Problème: Le dépistage VIH chez les enfants a rarement été au centre des préoccupations des chercheurs. Quand le dépistage pédiatrique a retenu l'attention, cela a été pour éclairer seulement sur les performances diagnostiques en ignorant même que le test pédiatrique...

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Experiences of people living with HIV and people living close to them of a comprehensive HIV stigma reduction community intervention in an urban and a rural setting

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Heleen French --- , , South Africa Minrie Greeff --- , , South Africa Martha J. Watson --- , , South Africa

HIV stigma remains high globally. Although there is a selection of HIV stigma reduction interventions discussed in the literature, there is a paucity of research about the effectiveness of these interventions. This study aimed at gaining a deeper understanding of...

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Health behaviour change of people living with HIV after a comprehensive community-based HIV stigma reduction intervention in North-West Province in South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: H. Christa Chidrawi --- , , South Africa Minrie Greeff --- , , South Africa Q. Michael Temane --- , , South Africa

All over the world, health behaviour is considered a complex, far reaching and powerful phenomenon. People's lives are influenced by their own or others' health behaviour on a daily basis. Whether it has to do with smoking, drinking, pollution, global...

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‘We keep her status to ourselves’: Experiences of stigma and discrimination among HIV-discordant couples in South Africa, Tanzania and Ukraine

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Laetitia C. Rispel --- , , South Africa Allanise Cloete --- , , South Africa Carol A. Metcalf --- , South Africa

In HIV-discordant relationships, the HIV-negative partner also carries the burden of a stigmatised disease. For this reason, couples often hide their HIV-discordant status from family, friends and community members. This perpetuates the silence around HIV-discordant relationships and impacts on targeted...

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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 Africa

The 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...

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‘The mercurial piece of the puzzle’: Understanding stigma and HIV/AIDS in South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Leah Gilbert --- , , South Africa

Although stigma and its relationship to health and disease is not a new phenomenon, it has not been a major feature in the public discourse until the emergence of HIV. The range of negative responses associated with the epidemic placed...

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Sexual abstinence: What is the understanding and views of secondary school learners in a semi-rural area of North West Province, South Africa?

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kebogile Mokwena --- , , South Africa Mamaponesa Morabe --- , , South Africa

Among strategies to prevent HIV, other sexually transmitted infections (STIs) and unwanted pregnancies, are programs that promote sexual abstinence among adolescents. However, literature suggests that there may be differences in the understanding of abstinence across adolescents, and this study sought...

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Food insecurity among students living with HIV: Strengthening safety nets at the Nelson Mandela Metropolitan University, South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: L. Steenkamp --- , , South Africa A. Goosen --- , , South Africa D. Venter --- , South Africa M. Beeforth --- , , South Africa

The HIV prevalence in South Africa among students at higher education institutions (HEIs) in 2008 was reported to be 3.4%, with the highest HIV prevalence found in the Eastern Cape Province. Students at these facilities are also increasingly affected by...

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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 Netherlands

With 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...

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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 --- , , Belgium

Background: 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...

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A livelihood intervention to improve economic and psychosocial well-being in rural Uganda: Longitudinal pilot study

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Bernard Kakuhikire --- , Uganda Diego Suquillo --- , USA Elly Atuhumuza --- , Uganda Rumbidzai Mushavi --- , USA Jessica M. Perkins --- , USA Atheendar S. Venkataramani --- , USA Sheri D. Weiser --- , USA David R. Bangsberg --- , USA Alexander C. Tsai --- , USA

HIV and poverty are inextricably intertwined in sub-Saharan Africa. Economic and livelihood intervention strategies have been suggested to help mitigate the adverse economic effects of HIV, but few intervention studies have focused specifically on HIV-positive persons. We conducted three pilot...

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‘I thought if I marry the prophet I would not die’: The significance of religious affiliation on marriage, HIV testing, and reproductive health practices among young married women in Zimbabwe

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Denise Dion Hallfors --- , USA Bonita J. Iritani --- , USA Lei Zhang --- , USA Shane Hartman --- , USA Winnie K. Luseno --- , USA Elias Mpofu --- , , Australia Simbarashe Rusakaniko --- , , Zimbabwe

This study examines the association between religious affiliation and reasons for marriage, perceived church attitudes, and reproductive health-seeking behaviors, including HIV testing, among young women in eastern rural Zimbabwe. The sample comprised women (N = 35) who had married by 2012 while...

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An assessment of quality of home-based HIV counseling and testing performed by lay counselors in a rural sub-district of KwaZulu-Natal, South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Vuyolwethu Magasana --- , South Africa Wanga Zembe --- , South Africa Hanani Tabana --- , South Africa Reshma Naik --- , South Africa Debra Jackson --- , South Africa Sonja Swanevelder --- , South Africa Tanya Doherty --- , South Africa

HIV counseling and testing (HCT) has been prioritized as one of the prevention strategies for HIV/AIDS, and promoted as an essential tool in scaling up and improving access to treatment, care and support especially in community settings. Home-based HCT (HBHCT)...

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Invisible work: Child work in households with a person living with HIV/AIDS in Central Uganda

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Julie Abimanyi-Ochom --- , , Australia Brett Inder --- , , Australia Bruce Hollingsworth --- , , UK Paula Lorgelly --- , , Australia

Background: HIV/AIDS has led to increased mortality and morbidity, negatively impacting adult labour especially in HIV/AIDS burdened Sub-Saharan Africa. There has been some exploration of the effects of HIV/AIDS on paid child labour, but little empirical work on children’s non-paid...

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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 Africa

Background: 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...

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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 Africa

Few 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...

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Occupational exposure, attitude to HIV-positive patients and uptake of HIV counselling and testing among health care workers in a tertiary hospital in Nigeria

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Modupe O. Onadeko --- , , Nigeria Mary O. Balogun --- , , Nigeria Olanrewaju O. Onigbogi --- , , Nigeria Folashade O. Omokhodion --- , , Nigeria

Health care workers (HCWs) are at risk of occupational exposure to HIV. Their attitude to HIV-positive patients influences patients’ willingness and ability to access quality care. HIV counselling and testing (HCT) services are available to inform HCWs and patients about...

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Violence, abuse and discrimination: key factors militating against control of HIV/AIDS among the LGBTI sector

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Dominic Targema Abaver --- , , South Africa Elphina Nomabandla Cishe --- , ,

The Lesbian, Gay, Bisexual, Transgender and Intersex (LGBTI) South Africans continue to face considerable challenges, including societal stigma, homophobic violence (particularly corrective rape), and high rates of sexually transmitted diseases and infections (particularly Human Immunodeficiency Virus (HIV)/AIDS) even when discrimination...

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Effect of a multicomponent behavioural PMTCT cluster randomised controlled trial on HIV stigma reduction among perinatal HIV positive women in Mpumalanga province, South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karl Peltzer --- , South Africa Suat Babayigit --- , , USA Violeta J. Rodriguez --- , , USA Jenny Jean --- , USA Sibusiso Sifunda --- , South Africa Deborah L. Jones --- , , USA

Background: We evaluate the impact a multicomponent, behavioural, prevention of mother to child transmission (PMTCT), cluster randomised controlled trial on HIV stigma reduction among perinatal HIV infected women in rural South Africa. Methods: In a cluster randomised controlled trial, twelve...

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Health care users’ knowledge, attitudes and perceptions of HIV self-testing at selected gateway clinics at eThekwini district, KwaZulu-Natal province, South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Sibongiseni Daphney Gumede --- , , South Africa Maureen Nokuthula Sibiya --- , , South Africa

Progress in promoting knowledge of HIV status has been made globally, but half of all people living with HIV are still unaware of their HIV status. It is argued the new innovative HIV self-testing strategy could increase the uptake of...

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Youth living with HIV/AIDS in secondary schools: perspectives of peer educators and patron teachers in Western Uganda on stressors and supports

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Emmanuel Kimera --- , , Uganda Sofie Vindevogel --- , , Belgium John Rubaihayo --- , , Uganda Didier Reynaert --- , , Belgium Jessica De Maeyer --- , , Belgium Anne-Mie Engelen --- , , Belgium Johan Bilsen --- , , Belgium

As Youth Living With HIV/AIDS (YLWHA) continue to survive and live with HIV chronically due to effective Antiretroviral Therapy (ART), it is paramount to work toward maximising their psychosocial wellbeing. The school where these YLWHA are expected to spend most...

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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 Africa

The 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...

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Factors associated with discriminatory attitudes towards people living with HIV among adult population in Ethiopia: analysis on Ethiopian demographic and health survey

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Gedefaw Alen Diress --- Woldia University, Ethiopia Mohammed Ahmed --- Woldia University, Ethiopia Melese Linger --- Woldia University, Ethiopia

Extensive discriminatory attitudes in a population can affect people’s willingness to be tested for Human Immunodeficiency Virus (HIV), their initiation of antiretroviral therapy, social support as well as the quality of life of people infected with HIV. This study aimed...

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Relationship between socio-economic characteristics of older adults’ women and family planning use in Botswana

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Njoku Ola Ama --- Department of Statistics, University of Botswana, Botswana John O. Olaomi --- Department of Statistics, University of South Africa,

Older adults (50 years and over) are still sexually active and therefore vulnerable to unplanned pregnancy, infection of STIs and HIV, yet there are no programmes in place to cater for their family planning needs. The objective of the study...

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Underlying reasons why some people haven’t tested for HIV – a discourse analysis of qualitative data from Cape Town, South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kyla Meyerson --- Desmond Tutu TB Centre, Stellenbosch University, South Africa Graeme Hoddinott --- Desmond Tutu TB Centre, Stellenbosch University, South Africa Tamryn Nicholson --- Desmond Tutu TB Centre, Stellenbosch University, South Africa Sue-Ann Meehan --- Desmond Tutu TB Centre, Stellenbosch University, South Africa

Reported barriers to HIV testing over the last 15 years have remained consistent, despite improved service offerings. We aimed to probe deeper by exploring how people who have never tested construct HIV testing in their talk. We used this to...

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Factors associated with high HIV-related stigma among commuter populations in Johannesburg, South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Peter S. Nyasulu --- Stellenbosch University, South Africa Ndumiso Tshuma --- Orange Grove, South Africa Lovemore N. Sigwadhi --- Stellenbosch University, South Africa Juliet Nyasulu --- University of the Witwatersrand, South Africa Modupe Ogunrombi --- Department of Clinical Pharmacology, School of Medicine, Sefako Makgatho Health Science University, South Africa Lucy Chimoyi --- The Aurum Institute, South Africa

Stigma remains an important barrier to seeking and staying in care among individuals infected with Human Immunodeficiency Virus (HIV). Despite continued widespread information, education and communication campaigns to raise awareness about the infection. The aim of the study was to...

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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 Africa

HIV-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...

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Challenges with couples HIV counselling and testing among black MSM students: perspectives of university students in Durban, South Africa

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Geogina Charity Gumindega --- University of KwaZulu-Natal, South Africa Pranitha Maharaj --- University of KwaZulu-Natal, South Africa

Research suggests that HIV infections among men who have sex with men (MSM) are acquired from primary partners, yet MSM continually fail to take part in couples HIV counselling and testing (CHCT). To identify factors that inhibit MSM in universities...

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Residue loads in amphibians used as biomarkers of pesticide levels entering food chains in sub‐Saharan Africa

Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: MichaelR.K. Lambert --- University of Greenwich, United Kingdom

Residues accumulate rapidly in amphibians to reach lethal levels. During previous years in Zimbabwe, total DDT residues from general agricultural contamination were at 3.90 ppm wet weight in Bufo gutturalis and 1.50 ppm in Ptychadena anchietae. Dieldrin residues in the...

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A new species of hemidactylus (Squamata: Gekkonidae) from West Africa, and comments on species hitherto confused with H. Muriceus

Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Klaus Henle --- Umweltforschungszentrum Leipzig‐Halle GmbH, Germany Wolfgang Böhme --- Zoologisches Forschungsinstitut und Museum Alexander Koenig, Germany

We describe a new species of Hemidactylus, H. pseudomuriceus. It is very similar to H. muriceus but differs in the number of internasal granules and has a central row of enlarged instead of narrow subcaudal scales. The new species lives...

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Differences in resting metabolic rates of two southern African tortoises: Psammobates oculiferus and Geochelone pardalis

Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Michael Scantlebury --- University of Pretoria, South Africa Peter Minting --- Ayrshire Rivers Trust, UK

Energy metabolism varies considerably between different groups of endotherms, yet there is little or no reported variation among extant groups of reptiles. We measured lower resting metabolic rates (RMRs) in Kalahari tent tortoises (Psammobates oculiferus) than in sympatric Leopard tortoises...

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Observations on diet and seed digestion in a Sand Dune Lizard, Meroles anchietae

Item type: Journal Article • Journal: African Journal of Herpetology • Authors: KennethA. Nagy --- University of California, USA DanielleR. Shemanski --- University of California, USA

Shovel‐snouted sand dune lizards, Meroles anchietae, are reported to include much seed from grasses and fig marigolds in their diets year‐round. This diet is quite unusual for a reptile, and invites investigation. We had an opportunity to examine the diet...

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New range extensions for Dasypeltis atra Sternfeld in Tanzania (Serpentes : Colubridae), with a review of the distribution of colour phases

Item type: Journal Article • Journal: African Journal of Herpetology • Authors: DonaldG. Broadley --- Biodiversity Foundation for Africa, Zimbabwe MichaelF. Bates --- National Museum, South Africa

Four Tanzanian specimens of the patterned phase of Dasypeltis atra represent range extensions into savanna areas. One of these specimens, from Ibaya Camp in Mkomazi Game Reserve, extends the species’ range by about 100 km to the south‐east from Mount...

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Assimilation efficiency and gut passage time in an African elapid snake, Hemachatus haemachatus

Item type: Journal Article • Journal: African Journal of Herpetology • Authors: GrahamJ. Alexander --- University of the Witwatersrand, South Africa ShirleyA. Hanrahan --- University of the Witwatersrand, South Africa Duncan Mitchell --- University of the Witwatersrand, South Africa

We measured apparent assimilation efficiency (AAE) and gut passage time in the African elapid snake Hemachatus haemachatus under laboratory conditions. AAE was dependent on food type, being 89.8% when snakes were fed frogs and 82.8% when fed mice. Differences in...

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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, USA

Leaf-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...

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Predation on the eggs of ground-nesting birds by Dasypeltis scabra (Linnaeus, 1758) in the moist highland grasslands of South Africa

Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Michael F. Bates --- , , South Africa Ian T. Little --- , South Africa

We provide evidence for predation by the Common Egg-eater (Dasypeltis scabra) on the eggs of three species of ground-nesting birds, namely African Pipit (Anthus cinnamomeus), Cape Longclaw (Macronyx capensis) and Common Quail (Coturnix coturnix). Although egg-eaters have been recorded as...

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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 Africa

Feed 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...

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Mapping the strength of sectoral innovation system in the Nigerian pharmaceutical industry: Empirical evidence

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Rachael Aderonke Ayo-Lawal --- Obafemi Awolowo University, Nigeria Caleb Muyiwa Adelowo --- Obafemi Awolowo University, Nigeria Ayobami Adesina Oyewale --- Obafemi Awolowo University, Nigeria Emmanuel Emeka Ejim-Eze --- Obafemi Awolowo University, Nigeria Elizabeth Adeteju Omimakinde --- Obafemi Awolowo University, Nigeria Wilson Oyekigho Erhun --- Obafemi Awolowo University, Nigeria Okechukwu Ukwuoma --- Obafemi Awolowo University, Nigeria

It is well known that innovation in the modern economy is driven by interactions among the stakeholders that make up the innovation system. Effective interactions among key actors in an innovation system foster flow of knowledge and resources development and...

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A comparison of the water quality and plankton diversity of the Okamini Stream to the freshwater systems within the New Calabar River catchment, Port Harcourt, Nigeria

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BB Otene --- Rivers State University, Nigeria I Thornhill --- University of Manchester, United Kingdom J Amadi --- Rivers State University, Nigeria

The water quality and phytoplankton diversity of the Okamini Stream, Port Harcourt, Nigeria was studied between April and June 2018 at three stations. The data was used to assess the health of the system for supporting local communities. Compared to...

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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 Africa

The 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...

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Proactive personality and academic procrastination in graduate students: Their chain-mediation by research self-efficacy and learning adaptability

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Hang Zhang --- Henan University, China Zhaoyang Xin --- Henan University, China Qinglin Wang --- Henan University, China Qianfeng Li --- Institute of Advanced Studies in Humanities and Social Sciences, Beijing Normal University, China Jing Du --- Henan University, China Minghui Wang --- Henan University, China

This study explored the relationship between graduate students’ proactive personality and academic procrastination, and the chain-mediation by research self-efficacy and learning adaptability. Participants were 905 postgraduates in China (female =70%; first year =56%; humanities and social sciences =54%). They completed...

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Trait anger and aggression among male violent offenders: The mediating effect of sadistic impulse and the moderating effect of emotion regulation

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Qinhong Xie --- Zunyi Medical University, China Bingtao Zhou --- China University of Political Science and Law, China Taiyong Bi --- Zunyi Medical University, China Bo Yang --- China University of Political Science and Law, China Hui Kou --- Zunyi Medical University, China

We investigated the mediating role of sadistic impulse and the moderating role of emotion regulation strategy in the relationship between trait anger and aggressive behaviour in violent offenders. A total of 492 male violent offenders (mean age = 34.06 years,...

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A circular economy approach to plastics in hospitality: a Frisian case study

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Livia Westgeest --- University of Groningen, The Netherlands

Despite its importance and influence on global plastic consumption, plastic management in the hospitality industry remains largely under-researched. This study aimed to investigate the perceived opportunities and barriers to reducing, reusing and recycling single-use plastics among a group of Frisian...

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The value relevance of mandatory sustainability reporting assurance

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Maher Jeriji --- IHEC – University of Carthage, Tunisia Ala Nasfi --- Montpellier University, France

Sustainability reporting assurance (SRA) ensures the credibility of sustainability information disclosed by companies. This practice has continued to evolve, particularly within regulatory frameworks. The SRA is widespread among the largest French and South African companies because of the requirements of...

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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 Africa

Shore-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...

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Call repertoire of Ptychadena uzungwensis (Anura: Ptychadenidae) to complement molecular and morphological identification of the species from the Soutpansberg, South Africa.

Item type: Journal Article • Journal: Treading a Delicate Tightrope: A principal balancing between education and political change during turbulent times • Authors: Ferdi De Lange --- , South Africa Edward C Netherlands --- , South Africa Louis H Du Preez --- , South Africa

The identity of adults and tadpoles of Ptychadena uzungwensis from the Soutpansberg range in northern South Africa was confirmed using a combination of morphological characters and molecular analysis. Detailed vocalisation analysis was made and used to complement existing species identification...

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Genetic diversity of the mantellid frog Blommersia blommersae, and description of a new anuran species from south-eastern Madagascar

Item type: Journal Article • Journal: Treading a Delicate Tightrope: A principal balancing between education and political change during turbulent times • Authors: Miguel Vences --- , Germany Moritz Armerding --- , Germany Jörn Köhler --- , Germany Frank Glaw --- , Germany

A range-wide assessment of genetic variation in one mitochondrial (16S rRNA) and one nuclear-encoded (Rag-1) gene fragment of the widespread Madagascar frog Blommersia blommersae revealed the presence of up to 12 deep genetic lineages. Many of these differed by genetic...

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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, Zimbabwe

A 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...

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Ekeland, Takahashi and Caristi principles in preordered quasi-metric spaces

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: S. Cobzaş --- Babeş-Bolyai University, Romania

We prove versions of Ekeland, Takahashi and Caristi principles in pre-ordered quasi-metric spaces, the equivalence between these principles, as well as their equivalence to some completeness results for the underlying quasi-metric space. These extend the results proved in S. Cobzaş,...

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Evolution of innovation systems, economic growth, and sustainable competitiveness in Africa

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Bernadin Géraud Comlan Ahodode --- University of Abomey-Calavi, Benin Republic

This paper examines the systemic relationship between triple helix innovation systems and the gross domestic product per capita growth (GDPPC) in terms of sustainable competitiveness in Africa. To do this, the Generalized Moment Method on the panel vector autoregressive model...

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Some further remarks on characterized subgroups generated by modular simple density

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ayan Ghosh --- Jadavpur University, India

In 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.

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Forage yield and quality response of Napier grass (Cenchrus purpureus) to different dry season harvesting management under the subhumid agroecology of western Ethiopia

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Abuye Tulu --- Oromia Agricultural Research Institute, Ethiopia Mekonnen Diribsa --- Oromia Agricultural Research Institute, Ethiopia Worku Temesgen --- Oromia Agricultural Research Institute, Ethiopia

A 3 × 2 factorial study was conducted in 2015, 2016 and 2017, to assess the impact of dry season cutting management on fodder yield and quality of Napier grass. Three harvesting times (November, January and March) and two stubble-...

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Cadmium exposure induces testicular oxidative damage and histopathological changes in the freshwater leech Limnatis nilotica (Savigny, 1822): the protective role of salicylic acid

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Ichrak Khaled --- University of Gafsa, Tunisia Issam Saidi --- University of Gafsa, Tunisia Raja Ben Ahmed --- Université de Tunis El Manar, Tunisia Ramzi Amari --- University of Gafsa, Tunisia Waleed Aldahmash --- King Saud University, Saudi Arabia Octavian Pacioglu --- National Institute of Research and Development for Biological Sciences, Romania Najla Hfaiedh --- University of Gafsa, Tunisia Abdel Halim Harrath --- King Saud University, Saudi Arabia

The present study examined the histopathological changes and some parameters of oxidative stress in the testes of the freshwater leech Limnatis nilotica, following their exposure to 50 µg l−1 of cadmium (Cd). The protective effects of salicylic acid (SA) in...

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Explicating the adoption of an innovation Fintech Value Chain Financing from Aarti (Middlemen) perspective in Pakistan

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sayeda Zeenat Maryam --- University of the Punjab, Pakistan Ashfaq Ahmed --- University of the Punjab, Pakistan Syed Waqar Haider --- Govt. College for Women University, Pakistan Tasneem Akhter --- University of Central Punjab, Pakistan

In the wake of the 2008 global financial crisis, the Fintech industry and Islamic banking were striving to fill the existing void through innovation and different business approaches. Losing trust in conventional banking, advancement of technology and internet globally, and...

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Materials selection and installation decisions for sustainable upgrade of existing structures: Case study of Ghana

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Dadzie --- Kumasi Technical University, Ghana Goitseone Buccah Sebitla --- University of Technology Sydney, Australia Goran Runeson --- University of Technology Sydney, Australia

The negative effects of construction on the environment have been acknowledged all over the world. Materials and technologies are developed regularly to help address challenges posed by rising populations and related energy demands and emissions. The purpose of this study...

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Status of gender equality in ocean research, conservation and management institutions and organisations in Kenya

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RA Ojwala --- WMU–Sasakawa Global Ocean Institute, World Maritime University, Sweden

Gender equality is key to achieving the objectives of the United Nation’s Decade of Ocean Science for Sustainable Development. In patriarchal societies, men’s dominance has long overshadowed women’s participation in science-related fields, including ocean science. The lack of gender-disaggregated data...

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On uniform f −statistical convergence of sequences of functions

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: M.C. Listán-García --- Universidad de Cádiz, Spain

We introduce the notions of uniform f −statistical convergence of sequences and uniform f −statistical Cauchy sequences of functions. The natural equivalence between these two notions, in Banach spaces, is proved. In doing so, we generalize and improve results of...

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The nonlocal solvability conditions in original coordinates for a system with constant terms

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: M.V. Dontsova --- Lobachevsky State University of Nizhny Novgorod, Russia

Conditions of a nonlocal solvability of the Cauchy problem in original coordinates are obtained for a system of two quasilinear first-order partial diﬀerential equations with constant terms. The investigation is based on the method of an additional argument. The proof...

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I’m betrayed and I’m gone – unless organizational leaders convince me otherwise: Perceived contract breaches, quitting intentions, and leader-related resources

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Dirk De Clercq --- Brock University, Canada Renato Pereira --- ISCTE Instituto Universitário de Lisboa, Portugal

Employees’ perceptions that their organization has not met its promises toward them (i.e., perceived contract breaches) might inform their turnover intentions, in a link that also could be moderated by four relevant leader-related resources – two that reflect how organizational...

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Host communities’ infrastructural development expectations of multinational mining companies in Ghana’s mining industry

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Stanford Nartey --- Ghana Institute of Management and Public Administration, Ghana Franklyn A. Manu --- Ghana Institute of Management and Public Administration, Ghana

This paper, through an ethnographic research approach, examines the infrastructural development expectations that host communities have of multinational mining companies (MNMCs) and how these expectations influence corporate-community relationships in two of Ghana’s mining districts. Using data triangulation from multiple stakeholder...

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Rainfed-based production of Megathyrsus maximus in sub-Saharan Africa: the case of the semi-arid environment of Sudan

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Hussein I Mohamed --- , Sudan Shamseddin M Ahmed --- Water Management and Irrigation Institute, University of Gezira, Sudan Adil D Mohamed --- Water Management and Irrigation Institute, University of Gezira, Sudan

The performance of rainfed-based Megathyrsus maximus (syn. Urochloa maxima and Panicum maximum) was investigated in the semi-arid pastures of Sudan. Split-plot complete design experiments with three replications were applied for two consecutive seasons (2020–2021). The treatments were two in situ...

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Do native grasses emerge and establish in areas rehabilitated using vetiver grass?

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Lindokuhle X Dlamini --- University of KwaZulu-Natal, South Africa Michelle J Tedder --- University of KwaZulu-Natal, South Africa Kevin P Kirkman --- University of KwaZulu-Natal, South Africa

Species-rich grasslands provide important ecosystem services, and in South Africa, approximately 40% of these grasslands are degraded. Vetiver grass (from India) is often used during rehabilitation efforts to restore soil function without a thorough understanding of the potential negative ecological...

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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, China

For a simple graph G, the ABC-index is a degree based topological index and is defined as

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Status and density of the threatened Kori Bustard Ardeotis kori in a woodland savanna

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kathan Bandyopadhyay --- University of Wyoming, United States Bogdan Cristescu --- , Namibia Jeffrey L Beck --- University of Wyoming, United States John L Koprowski --- University of Wyoming, United States Laurie Marker --- , Namibia

Many grassland habitats have disappeared or undergone substantial change worldwide and many obligatory grassland animal species have populations that are at risk of extinction. The Kori Bustard Ardeotis kori is the largest flying bird native to Africa and an open...

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Sector exposures in factor portfolios: Why neutralise when you can optimise?

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Andrew Paskaramoorthy --- University of Cape Town, South Africa Emlyn Flint --- University of Cape Town, South Africa

Managing sector risk within factor portfolios has traditionally been viewed as a binary decision problem: to neutralise sector risk or not. Challenging this view, we introduce a novel conceptual framework that allows a continuum of choices, thus reframing the problem...

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Analysing the socioeconomic characteristics of fisheries-dependent communities in the context of the blue economy in Ghana

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Alhassan Abdul-Wakeel Karakara --- University of Cape Coast, Ghana James Atta Peprah --- University of Cape Coast, Ghana Isaac Dasmani --- University of Cape Coast, Ghana

For centuries resource economists have persistently debated and discussed the potential of the green economy and how it should be protected and used sustainably. Most studies to date on the economic value of natural resources have thus concentrated on the...

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How college students’ social media information overload affects sleep quality: The mediating effect of social fatigue and irrational procrastination

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jing Li --- Zhejiang University, China Tingting Gao --- Zhejiang University, China Yinghua Ye --- Zhejiang University, China

Information overload is a pervasive phenomenon in the information age and has a negative impact on personal psychological experiences and behavioural performance. The relationship between WeChat information overload and sleep quality was examined, as well as the mediating effects of...

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Linking servant leadership to work strains: The mediating effect of strengths use

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nan Wang --- Renmin University of China, China Yuxiang Luan --- Renmin University of China, China Rui Ma --- North Minzu University, China

The current study examined the relationship between servant leadership and employees’ work strain, as well as the mediating role of strengths use in that relationship. Participants were 179 Chinese employees (female = 49%; mean age = 27 years; mean tenure...

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Gradient estimates of a nonlinear Lichnerowicz equation under the Finsler-geometric flow

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Shahroud Azami --- Imam Khomeini International University, Iran

Let (Mn , F(t), m), t ∈ [0, T], be a compact Finsler manifold with F(t) evolving by the Finsler-geometric flow , where g(t) is the symmetric metric tensor associated with F, and h(t) is a symmetric (0, 2)-tensor. In...

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Personalisation of Moodle Learning Management System for Effective Teaching and Learning in Higher Learning Institutions: A Case of the State University of Zanzibar

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abdalla Shaame --- The State University of Zanzibar, SUZA, Tanzania Umayra El Nabahany --- The State University of Zanzibar, SUZA, Tanzania Said Yunus --- The State University of Zanzibar, SUZA, Tanzania Tabu Kondo --- The University of Dodoma, UDOM, Tanzania Wadrine Maro --- University of Dar es Salaam, UDSM, Tanzania

The Learning Management System (LMS) continues to persuade instructors and students that the use of the Moodle platform is the correct choice to meet their educational needs. This study presents the personalization of the Moodle LMS based on students’ needs...

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PrEP retention predictors among key populations in urban areas of Zimbabwe — a machine learning approach

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Bridgette Bero --- National University of Science and Technology, Zimbabwe Chipo Zidana --- Botswana International University of Science and Technology, Botswana Sarudzai Portia Showa --- National University of Science and Technology, Zimbabwe

Pre-exposure prophylaxis (PrEP) success depends on adherence and hence retention in care. It is vital to find factors that affect PrEP retention to make this HIV-prevention method successful. The main objectives of this study were to identify the major determinants...

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“I don’t know if you have searched through the scriptures to find a reference on HIV/AIDS. I mean there isn’t going to be one, right?”: HIV stigma solutions from dialogues between faith leaders and health care workers

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Germari Kruger --- Vrije Universiteit, The Netherlands Eduardus AJG van der Borght --- Vrije Universiteit, The Netherlands Martha T Teijema --- Amsterdam University Medical Center, Vrije Universiteit, The Netherlands Marceline Tutu van Furth --- Amsterdam University Medical Center, Vrije Universiteit, The Netherlands

In South African communities, both faith leaders and health care workers play a vital role in supporting the health of community members and people living with HIV in particular. This study describes HIV stigma when faith leaders and health care...

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“We will tell when we are ready”: perinatally HIV-infected adolescents and self-disclosure of their status in Eswatini

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Baliwe P. Dlamini --- University of KwaZulu-Natal, South Africa Ntombifikile G. Mtshali --- University of KwaZulu-Natal, South Africa

Access to antiretroviral therapy (ART) has promoted a significant decrease in mortality of vertically HIV-infected children. As a result, there has been an increasing growth of this population that reaches adolescence. These adolescents face problems such as self-disclosure and the...

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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, Canada

Past 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...

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Resilience in Iranian adolescents during the COVID-19 pandemic: Psychometric Evaluation of the Connor-Davidson Resilience Scale

Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Hamid Sharif-Nia --- Addiction Institute, Mazandaran University of Medical Sciences, Iran Long She --- Sunway University, Malaysia Erika Sivarajan Froelicher --- University of California San Francisco, USA Gökmen Arslan --- Mehmet Akif Ersoy University, Turkey Sima Hejazi --- North Khorasan University of Medical Sciences, Iran Fatemeh Khoshnavay Fomani --- Tehran University of Medical Sciences, Iran Daniyal Kohestani --- Iran University of Medical Science, Iran Elham Akhlaghi --- Iran University of Medical Sciences, Iran

Background: Resilience is a measure of the ability to cope with stress and the accurate measurement of it is critical. This study aimed to translate and evaluate the psychometric properties of the Connor-Davidson Resilience Scale in Iranian adolescents during the...

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Regenerative economy: A pathway to a future-ready, sustainable Africa

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Judith L. Walls --- Institute for Economy and the Environment, University of St.Gallen, Switzerland Leo Luca Vogel --- University of St.Gallen, Switzerland

Africa is experiencing a period of rapid economic growth, booming population, and migration as biodiversity is deteriorating and the climate is warming. Together, these represent grand societal and environmental challenges. The African Union and the United Nations both promote sustainable...

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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 Africa

South 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...

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Effect of rotational harvesting on the size composition of Cape rock oysters Striostrea margaritacea on the east coast of South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: E Steyn --- Oceanographic Research Institute, South Africa JC Groeneveld --- Oceanographic Research Institute, South Africa J Santos --- Norwegian College of Fishery Science, Uit – The Arctic University of Norway, Norway

A commercial fishery for the Cape rock oyster Striostrea margaritacea along the north coast of KwaZulu-Natal, South Africa (western Indian Ocean), follows a 4-year rotational cycle, with each harvest year followed by 3 fallow years across four harvest zones. We...

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Network analysis of the endemic spotted gully shark Triakis megalopterus reveals spatial vulnerability to exploitation in the Western Cape, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: E Cottrant --- , South Africa NJ Drobniewska --- , South Africa TL Johnson --- , South Africa LG Underhill --- University of Cape Town, South Africa TS Murray --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa N Hammerschlag --- University of Miami, United States PS Albano --- University of Miami, United States C Elston --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa ME McCord --- , South Africa PD Cowley --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa C Fallows --- , South Africa TG Paulet --- , South Africa

The spotted gully shark Triakis megalopterus (Triakidae) is a mesopredatory species endemic to southern Africa. It is currently listed as Least Concern on the IUCN Red List in accordance with an estimated increase in population size, general release by recreational...

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Histological arrangements of plant tissue of different elephant grasses as influenced by their genotypes

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: --- Universidade Federal Rural de Pernambuco, Brazil --- Universidade Federal Rural de Pernambuco, Brazil --- Universidade Federal Rural de Pernambuco, Brazil --- Universidade Federal Rural de Pernambuco, Brazil --- Universidade Federal Rural de Pernambuco, Brazil --- Universidade Federal Rural de Pernambuco, Brazil --- Universidade Federal Rural de Pernambuco, Brazil --- Universidade Federal Rural de Pernambuco, Brazil

Elephant grass genotypes display a variety of morphological differences, influencing the nutritive value of the forage. This study evaluated the histological arrangements of the leaves and stems of different elephant-grass genotypes, two tall-sized (Elephant B and IRI-381) and two dwarfs...

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Influence of groups of points on estimates of the parameters of moult

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Les G Underhill --- University of Cape Town, South Africa Tanya Scott --- University of Cape Town, South Africa

The Underhill–Zucchini model of avian moult is a statistical simplification for the analysis of primary moult, a complex biological system in birds. As with all such models, conclusions can be biased if a subset of the data used to fit...

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Interventions to improve young men’s utilisation of HIV-testing services in KwaZulu-Natal, South Africa: perspectives of young men and health care providers

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sithembiso Ndlovu --- University of KwaZulu-Natal, South Africa Andrew Ross --- University of KwaZulu-Natal, South Africa Mutshidzi Mulondo --- University of the Free State, South Africa

Introduction: HIV-testing services (HTS) are an important point of entry to prevention and treatment of HIV in South Africa. Despite the availability of HTS across the region and in SA, the uptake among men remains low, especially young men residing...

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“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 States

Scholars 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...

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Effect of plant spacing and cutting intensity on the morphology and productivity of forage cactus [Opuntia stricta (Haw.) Haw.]

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Claudia Maciel Ferreira --- Universidade Federal Rural de Pernambuco, Brazil Marcio Vieira da Cunha --- Universidade Federal Rural de Pernambuco, Brazil Mércia Virginia Ferreira dos Santos --- Universidade Federal Rural de Pernambuco, Brazil Alexandre Carneiro Leão de Mello --- Universidade Federal Rural de Pernambuco, Brazil Djalma Cordeiro dos Santos --- Instituto Agronômico de Pernambuco, Brazil Maria da Conceição Silva --- Instituto Agronômico de Pernambuco, Brazil Janerson José Coelho --- Universidade Federal Rural de Pernambuco, Brazil

The forage cactus cultivar Mexican elephant ear (MEE) [Opuntia stricta (Haw.) Haw.] has been widely used in the semi-arid of Brazil because of its resistance to carmine mealybug. Therefore, it is necessary to establish planting and harvesting management strategies for...

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Does the presence of tall or dwarf elephant grass genotypes change the nutritive value of butterfly pea in grass–legume intercrops?

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Tafnes Bernardo Sales-Silva --- Federal Rural University of Pernambuco, Brazil Mércia Virginia Ferreira dos Santos --- Federal Rural University of Pernambuco, Brazil Osniel Faria de Oliveira --- Federal Rural University of Pernambuco, Brazil Pedro Henrique Ferreira da Silva --- Federal Rural University of Pernambuco, Brazil Alexandre Carneiro Leão de Mello --- Federal Rural University of Pernambuco, Brazil Evaristo Jorge Oliveira de Souza --- Federal Rural University of Pernambuco, Brazil Márcio Vieira da Cunha --- Federal Rural University of Pernambuco, Brazil

Adding tropical legumes into grass-based forage systems may increase the nutritive fodder value, but competition may decrease legume quality. We evaluated the nutritional values and agronomic responses of tall and dwarf elephant grass genotypes (Cenchrus purpureus (Schumach.) Morrone.) and butterfly...

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ESG performance and firm value in the Chinese market

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Rui Cheng --- Yeungnam University, Korea Hyeongjun Kim --- Yeungnam University, Korea Doojin Ryu --- Sungkyunkwan University, Korea

While the recent COVID-19 pandemic has accelerated environmental, social, and governance (ESG) investing, there remains a growing sense of uncertainty in this sector. This study investigates the impacts of ESG-related information disclosures on firm value and tests the relationship between...

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The influence of crises on the financial position of multinationals in emerging markets

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Peter Vaz da Fonseca --- Mackenzie Presbyterian University, Brazil Michele Nascimento Jucá --- Mackenzie Presbyterian University, Brazil João Paulo da Torre Vieito --- Polytechnic Institute of Viana do Castelo, Portugal

This investigation is one of the first to analyse the relationships between leverage and bankruptcy costs, interest expenses, tax benefits and firm value, in multinational and domestic companies, during periods of crisis and financial stability. The analysed data are related...

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Exponential stability of a laminated beam system with thermoelasticity of type III and distributed delay

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Kassimu Mpungu --- Mountains of the Moon University, Uganda

In this work, we consider a one-dimensional laminated Timoshenko beam system with thermoelasticity of type III and distributed delay. Our concern is to investigate the exponential stability of the vibrations in the system without structural damping. By exploiting the perturbed...

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Hospitality in volunteer engagement: navigating complexities in residential care facilities for children

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Rodney Westerlaken --- NHL Stenden University of Applied Sciences, The Netherlands

This study investigates the multifaceted realm of volunteer engagement in orphanages and residential care facilities for children, as places of hospitality towards volunteers, in low- and middle-income countries. While the positive outcomes of such engagements, including assistance, economic contributions and...

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Motivating Generation Z — the volunteers of the future

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Henrik Pahus --- , Denmark Tina Knuth --- , Denmark

In this article, we present the results of an ongoing research project from 2020 to 2023 on volunteerism and Generation Z. The purpose of the overall project is to examine which elements are motivating or demotivating to volunteers from Generation...

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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 Africa

Environmental 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...

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Impact of interactions between common bottlenose dolphins and purse-seiners in the Moroccan Mediterranean region: case study in the Al Hoceima fishing grounds

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Keznine --- Abdelmalek Essaâdi University, Morocco B Mghili --- Abdelmalek Essaâdi University, Morocco H Awadh --- Abdelmalek Essaâdi University, Morocco M Analla --- Abdelmalek Essaâdi University, Morocco M Aksissou --- Abdelmalek Essaâdi University, Morocco

This study examines the effect of common bottlenose dolphins Tursiops truncatus on the purse-seine fishery for small pelagic fishes in the Mediterranean Sea and the economic consequences thereof. The investigation focused on the fleet registered at the port of Al...

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Adoption of mobile application for enhancing learning in higher education: Students’ views from the State University of Zanzibar, Tanzania

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mwanajuma Suleiman Mgeni --- The State University of Zanzibar, Haji Ali Haji --- The State University of Zanzibar, Said Ali Yunus --- The State University of Zanzibar, Ali Abdulla Abdulla --- The State University of Zanzibar,

Mobile (m)-learning is a technology-enhanced learning approach utilizing mobile technologies to facilitate learning. Despite significant attention from previous researchers, there is a lack of adequate studies about student’s usage and perceptions of m-learning in Zanzibar’s’ higher learning institutions (HLIs). In...

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Advertisement call description of the exceedingly rare Phrynomantis affinis (Anura: Microhylidae), with comparisons to P. bifasciatus and range extensions for both species

Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Francois S Becker --- National Museum of Namibia, Namibia Alan Channing --- North-West University, South Africa

Despite a relatively broad distribution in Africa, the Spotted Rubber Frog, Phrynomantis affinis, is extremely rarely encountered. Only 18 specimens from 12 localities have been collected with a few additional observations recorded. Virtually nothing of the species’ natural history is...

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Agreement between measured energy expenditure and predictive energy equations in paediatric oncology

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: I Kellerman --- Stellenbosch University, South Africa M Kruger --- Stellenbosch University, South Africa J Schoeman --- Stellenbosch University, South Africa R Blaauw --- Stellenbosch University, South Africa

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Building hope for the poor with digital services: Providing prosperity, justice, and dignity for ALL

Item type: Journal Article • Journal: Africa Journal of Management • Authors: M. Barrett --- University of Cambridge, UK S. Liyala --- Jaramogi Oginga Odinga University of Science and Technology, Kenya E. Oborn --- University of Warwick, UK K. Prince --- University of Cambridge, UK

Digital technologies offer hope for societal change, with the potential to improve the lives of those in poverty. Avoiding utopian and dystopian views, we offer a more dynamic perspective of ‘realistic hope' where hope can be aspired to and achieved,...

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Difference in acoustic responses to urbanisation in two African passerines

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Dickson Anobie Matthew --- AP Leventis Ornithological Research Institute (APLORI), Nigeria Samuel Tertse Ivande --- AP Leventis Ornithological Research Institute (APLORI), Nigeria Ulf Ottosson --- AP Leventis Ornithological Research Institute (APLORI), Nigeria Samuel Temidayo Osinubi --- University of Cape Town, South Africa

Modification of ecosystems as a consequence of urbanisation alters natural habitat structures and soundscapes, creating constraints for vocal communication in animals. Birds are able to adjust their vocalisation to the prevailing acoustic features of their habitat. As such, their sounds...

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General decay and blow up of solutions for a plate viscoelastic p(x)-Kirchhoff type equation with variable exponent nonlinearities and boundary feedback

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jorge Ferreira --- Federal Fluminense University, Brazil Erhan Pişkin --- Dicle University, Turkey Mohammad Shahrouzi --- Jahrom University, Iran

In this paper, we consider a plate viscoelastic p(x)–Kirchhoff type equation with variable-exponent nonlinearities of the form

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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, Iran

A 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...

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Beyond the “single story” of vaccine hesitancy: “studying up” a public health response to vaccine-associated polio in South Africa

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Lehlohonolo Kekana --- University of Cape Town, South Africa

Vaccine hesitancy is a widely noted challenge in the struggle against communicable diseases. This was clearly demonstrated in the Covid-19 vaccine drives in South Africa and the world over. While social responses to vaccines are well documented, the literature tells...

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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, Nigeria

Research 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...

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Pairs trading in cryptocurrency markets: A comparative study of statistical methods

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Po-Chang Ko --- National Kaohsiung University of Science and Technology, Taiwan Ping-Chen Lin --- National Kaohsiung University of Science and Technology, Taiwan Hoang-Thu Do --- National Kaohsiung University of Science and Technology, Taiwan Yuan-Heng Kuo --- National Kaohsiung University of Science and Technology, Taiwan Linh My Mai --- National Kaohsiung University of Science and Technology, Taiwan You-Fu Huang --- National Kaohsiung University of Science and Technology, Taiwan

This study aims to identify a secure and efficient trading approach for investors in highly volatile cryptocurrency markets. While pairs trading is a promising strategy, the available literature on this topic in cryptocurrency markets is limited and primarily based on...

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Under- or -overreaction: Investors’ response to black swan events

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Luu Thu Quang --- Ho Chi Minh University of Banking, Ho Chi Minh City,

The objective of this study is to explore whether four categories of investors overreact or underreact to specific black swan events in the Vietnam Stock Exchange (HSX) and whether their trading patterns can predict stock returns. We find evidence of...

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Argument estimates associated with meromorphic close-to-starlike and Bazilević functions

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Nak Eun Cho --- Pukyong National University, Republic of Korea Inhwa Kim --- Harris-Stowe State University, U.S.A H.M. Srivastava --- University of Victoria, Canada

The object of the present paper is to derive some argument properties associated with meromorphic close-to-starlike and Bazilević functions in the punctured open unit disk. Furthermore, we investigate integral-preserving properties in a sector with some special cases of the main...

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Assessment of surface water quality in a highly anthropised semi-arid catchment (Case of Wadi El Hatab Basin, Tunisia, North Africa)

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: W Hayouni --- University of Sfax, Tunisia N Chkir --- University of Sfax, Tunisia S Pistre --- Université Montpellier, France K Zouari --- University of Sfax, Tunisia

Anthropogenic contamination of surface waters is a critical issue in urbanised catchments, especially in Mediterranean environments with scarce water resources and intermittent rivers. A combined hydro-geochemical and multivariate statistical methodology has been applied to evaluate the surface water quality of...

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Factors that impact the implementation of blockchain in logistics in the United Arab Emirates

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mohamad Bleik --- Independent researcher, Switzerland

This study investigates the factors influencing the implementation of blockchain in logistics in the United Arab Emirates (UAE), including security, privacy, end-user benefits, quality control, technology infrastructure, and lack of general awareness. A mixed-methods approach was used, with data collected...

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Information and communication technology and poverty alleviation in Nigeria

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Freeman Munisi Mateko --- University of Johannesburg, South Africa

There is a disconnect between the abundant resources at the national level and the severe poverty at individual and household levels in Nigeria. Information and communication technology is an efficient tool that the Asian economies have used to alleviate poverty...

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Public information disclosure practices and civic participation: The roles of social justice perceptions and internet use

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yongjiang Wu --- Chongqing University, China Zhi Li --- Chongqing University, China

This study examined the relationship between public information disclosure practices and civic participation and the roles of social justice perceptions and internet use in that relationship. Our data comes from the 2019 Chinese Social Survey (CSS, 2019), a large nationwide...

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How perspective taking influences obesity stereotypes: The mediating effect of intergroup contact

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yunlong Wu --- Inner Mongolia Normal University, China Yuzhu Zhang --- Hulunbuir University, China

Obesity is stigmatised and associated with adverse health, psychological, and social consequences. This study examined contact influences on the relationship between perspective taking and obesity stereotypes in young adults. The sample comprised 411 Chinese university students (female = 73.97%; mean...

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Orbit spaces of free involutions on the product of three spheres

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Dimpi --- University of Delhi, India Hemant Kumar Singh --- University of Delhi, India

In this paper, we have determined the orbit spaces of free involutions on a finitistic space having mod 2 cohomology of the product of three spheres . This paper generalizes the results proved by Dotzel et al. [7] for free...

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Exponential decay of solutions to an inertial model for a wave equation with viscoelastic damping and time varying delay

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mohamed Berbiche --- Biskra University, Algeria

In the present work, we study the global existence and uniform decay rates of solutions to the initial-boundary value problem related to the dynamic behavior of evolution equations accounting for rotational inertial forces along with a linear time-nonlocal Kelvin-Voigt damping...

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Use and management of seagrass ecosystems in southwestern Madagascar

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: F Rakotonjanahary --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar C Rakotomahazo --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar J Nirinamamiko --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar T Razakarisoa --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar GGB Todinanahary --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar T Lavitra --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar G Lepoint --- UR FOCUS, University of Liège, Belgium MA Vanderklift --- CSIRO Environment, Indian Ocean Marine Research Centre, Australia L Ranivoarivelo --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar

Madagascar’s seagrass meadows are among the least-studied ecosystems in the western Indian Ocean region. To facilitate sustainable management, understanding the traditional uses of seagrass areas in relation to current management policies is necessary. This study assessed the uses of, and...

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Long-term changes in petrel populations on Inaccessible Island, Tristan da Cunha, inferred from the diet of Brown Skuas Stercorarius antarcticus

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Peter G Ryan --- University of Cape Town, South Africa

Petrels that breed in burrows and return to their colonies after dark are among the most poorly studied seabirds. Brown Skuas Stercorarius antarcticus (family Stercorariidae) are major predators of burrowing petrels at many seabird breeding islands in the Southern Ocean,...

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Highly variable breeding phenology in an arid region colonial cooperative breeder, the Sociable Weaver Philetairus socius

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Pietro B D’Amelio --- Université Paris-Saclay and Centre National de la Recherche Scientifique (CNRS), Institut des Neurosciences Paris-Saclay, France Nicolas J Silva --- , France Liliana R Silva --- University of Porto, Portugal André C Ferreira --- University of Zurich, Switzerland Franck Theron --- University of Porto, Portugal Claire Doutrelant --- , France Rita Covas --- University of Porto, Portugal

Describing breeding phenology (the timings of reproductive events) is central for studying individual fitness and population dynamics. While fundamental differences in breeding strategies between different biomes (e.g. tropics and temperate regions) have long been identified, detailed descriptions based on long-term...

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Exponential stability results for second-order impulsive neutral stochastic differential equations

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Dongdong Gao --- Tongling University, P.R. China Daipeng Kuang --- Hunan Normal University, P.R. China Jianli Li --- Hunan Normal University, P.R. China

This paper is aimed to discuss the existence and exponential stability of mild solutions for second-order impulsive neutral stochastic differential equations (INSDEs). Firstly, we derive the existence of mild solutions for INSDEs by using the Banach fixed point theorem. Then,...

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Conditional indicators

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Dorsaf Cherif --- , Tunisia Emmanuel Lepinette --- Paris Dauphine University, France

In this paper, we introduce a large class of (so-called) conditional indicators, on a complete probability space with respect to a sub σ-algebra. A conditional indicator is a positive mapping, which is not necessary linear, but may share common features...

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Cultivation of honeybush (Cyclopia spp.) in neo-colonial and multispecies landscapes of South Africa

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Sthembile Ndwandwe --- University of Cape Town, South Africa Roderick Juba --- , South Africa Matthew Sephton --- , South Africa

The indigenous wild plants of Southern Africa are intertwined with human cultures, histories and livelihoods. By focusing on commercial cultivation of a wild plant, honeybush (Cyclopia spp.), an indigenous plant that is endemic to parts of South Africa, we discuss...

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Do we have the tools for achieving distributive tax justice?

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: James Alm --- Tulane University, USA

Purpose: How can tax policies serve as a tool to promote distributive tax justice? The purpose of this study is to discuss several policies that research shows are both feasible and effective in achieving distributive tax justice.

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Parasitoid guild of the citrus leafminer, Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae) in Tunisian citrus orchards and a new report of Cirrospilus ingenuus Gahan (Hymenoptera: Eulophidae)

Item type: Journal Article • Journal: African Zoology • Authors: Dorra Mansour --- University of Sousse, Regional Research Centre on Horticulture and Organic Agriculture at Chott Meriem, Institut Supérieur Agronomique de Chott-Mariem, Tunisia Mohamed Braham --- University of Sousse, Regional Research Centre on Horticulture and Organic Agriculture at Chott Meriem, Institut Supérieur Agronomique de Chott-Mariem, Tunisia

A survey of the parasitoid species of the citrus leafminer (CLM), Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae), a cosmopolitan pest of citrus, was carried out in 2019 and 2020 in the major citrus production area of Tunisia. Four different Eulophidae species...

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Uniqueness of second-order elliptic operators with unbounded and degenerate coefficients in L ₁-spaces

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Tan Duc Do --- University of Economics Ho Chi Minh City, Vietnam Le Xuan Truong --- University of Economics Ho Chi Minh City, Vietnam

Let . Let and . Consider the formal second-order differential operator

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Estimation accuracy of bean bags as portion size estimation aids for amorphous foods

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Friedeburg Anna Maria Wenhold --- University of Pretoria, South Africa Una Elizabeth MacIntyre --- University of Pretoria, South Africa

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Evaluating the role of combustible renewable and waste in reducing greenhouse gas emissions in the long run in Malaysia

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Jayanthi R Alaganthiran --- Universiti Malaya, Malaysia Santha Chenayah --- Universiti Malaya, Malaysia Rajah Rasiah --- Universiti Malaya, Malaysia

Malaysia has been struggling to effectively manage waste which accounts for a substantial amount of greenhouse gases. Thus, the objective of this study was to identify whether renewable energy from combustible renewable and waste could significantly reduce the total greenhouse...

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Spatial and seasonal variation of microplastics and surface water quality of the Njoro River and Lake Nakuru ecosystems, Kenya

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Petra Kienyiy Chui --- Egerton University, Kenya Bernard Kibet Kirui --- Egerton University, Kenya Meshack Amos Obonyo --- Egerton University, Kenya

High levels of plastic pollutants threaten aquatic habitats as the plastic materials are ingested by aquatic organisms as food. This study assessed seasonal variations of microplastics and the water quality of the Njoro River and Lake Nakuru, Kenya. Selected water...

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The impact of printing industry effluent on the growth and antioxidant response of the freshwater green microalga Chlorella sorokiniana

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: IY Okpanachi --- Nigerian Army University Biu, Nigeria U Aminu --- Ahmadu Bello University, Nigeria AO Jolaoso --- University of Lagos, Nigeria WN Yusufu --- Ahmadu Bello University, Nigeria E Abdulmalik --- Ahmadu Bello University, Nigeria MA Chia --- Ahmadu Bello University, Nigeria

Contamination of aquatic ecosystems with printing industry wastewater is a serious concern because of the toxicity associated with the effluent components and a tendency to create cascading ecological effects. The influence of printing-press effluent on the freshwater microalga Chlorella sorokiniana...

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Comparison of the acute toxicity and behavioural effects of two pyrethroids on African catfish Clarias gariepinus fingerlings

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: EO Ogueji --- Alex Ekwueme Federal University, Nigeria JJ Ekpenyong --- Alex Ekwueme Federal University, Nigeria GU Amana --- Kogi State University, Nigeria EB Tabi --- Alex Ekwueme Federal University, Nigeria IB Okey --- Cross River University of Technology, Nigeria MO Olaolu --- Alex Ekwueme Federal University, Nigeria JN Nwakpa --- Ebonyi State University, Nigeria

Two of the most-commonly used pyrethroid insecticides were subjected to static bioassays to determine their acute toxicity to Clarias gariepinus fingerlings, followed by comparisons of their impact on mortality and behavioural changes in the fish. The LC50 values for deltamethrin...

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Local knowledge, utilisation and consumption of seaweed in coastal communities of southwestern Madagascar

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Rodine --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar A Rakotoarimanana --- University of Toamasina, Madagascar AB Ramamonjisoa --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar LN Ranivoarivelo --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar C Rakotomahazo --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar GBG Todinanahary --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar G Tsiresy --- University of Toamasina, ISTRCE [East Coast Regional Higher Institute of Technology], Madagascar H Jaonalison --- University of Liège, Belgium AL Nomenisoa --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar I Eeckhaut --- University of Mons, Belgium ME Remanevy --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar JS Obe --- , Madagascar R Rasolofonirina --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar T Lavitra --- Institut Halieutique et des Sciences Marines (IH.SM), University of Toliara, Madagascar

This study explored the local knowledge, utilisation and consumption of seaweeds (lomotsy in Malagasy) among coastal communities in southwestern Madagascar. Primary data were collected in eight villages, through a survey questionnaire (with a total of 629 respondents) and daily focus...

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The use of image classification to estimate flamingo abundance from aerial, drone and satellite imagery

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: RB Colyn --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, South Africa TA Anderson --- BirdLife South Africa, South Africa MD Anderson --- BirdLife South Africa, South Africa EF Retief --- BirdLife South Africa, South Africa EJ Van der Westhuizen-Coetzer --- , South Africa H Smit-Robinson --- BirdLife South Africa, South Africa

The Lesser Flamingo Phoeniconaias minor is a Near Threatened species known to be highly gregarious and that can concentrate in large numbers at core foraging and breeding sites, yet is also known to disperse widely in search of suitable foraging...

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Diet of a Maghreb Owl Strix mauritanica individual at Kahf Lakhal cave on Jbel Moussa, northern Morocco

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Abdeslam Rihane --- , Morocco Abdelmottalib Nahli --- University of Hassan II Casablanca, Morocco EL-Mustapha Laghzaoui --- , Morocco Youssef Dbiba --- , Morocco Mohamed Radi --- , Morocco Mohamed Dakki --- , Morocco El Hassan El Mouden --- , Morocco Rhimou El Hamoumi --- University of Hassan II Casablanca, Morocco

The diet of a single Maghreb Owl Strix mauritanica (family Strigidae) was examined within its natural habitat at Kahf Lakhal cave on Jbel Moussa, a mountain in northern Morocco. The two distinct batches of pellets collected contained a total of...

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Observations on the breeding biology of D’Arnaud’s Barbet Trachyphonus darnaudii

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Henrik Brumm --- Max Planck Institute for Ornithology, Germany Poyo Makomba --- , Tanzania Wolfgang Goymann --- , Tanzania

Breeding behaviour is a key process for avian fitness and evolution, but the basic natural histories of many species are unknown. We studied the breeding biology of D’Arnaud’s Barbet Trachyphonus darnaudii (family Lybiidae) on the Usangu Plains in southwestern Tanzania...

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Adapting Altman Z-score models for early warning signals: Evidence from delisted mining stocks on the Johannesburg Stock Exchange

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Nigel Matanga --- University of Cape Town, South Africa Glen Holman --- University of Cape Town, South Africa

The aim of the study is to measure the predictive prowess of adapting the Altman’s Z-score models when used to predict financial health and subsequent delisting of mining companies listed on the Johannesburg Stock Exchange between 1994 and 2021. The...

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Data utilisation among employees in SMEs in Destination Limfjorden, Denmark

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Henrik S. Pahus --- Dania Academy, Denmark Lars Falk --- International Sales and Marketing, University College of Northern Denmark, Denmark

This article explores the efforts of Destination Limfjorden in Denmark to enhance employees’ competencies and skills in small and medium-sized tourism enterprises (SMEs) through the strategic use of data. The study employs a mixed-method approach, integrating digital questionnaires and semi-structured...

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Assessment of regenerative hospitality

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Jannah Kreb --- Stenden University of Applied Sciences, The Netherlands Wichard Zwaal --- Stenden University of Applied Sciences, The Netherlands

This article addresses the lack of practical tools for assessing regenerative hospitality in hotels. The study provides a systematic approach to developing a practical tool to assess and promote regenerative practices in the hospitality industry. The literature review identified seven...

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Tax policies with a human rights perspective: towards greater tax justice

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Benjamín Sevilla-Bernabéu --- University of Valencia, Spain Estrella Del-Valle-Calzada --- University of Valencia, Spain

Purpose: The main objective of this study is to analyse tax policies from a human rights perspective.

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Measure pseudo S -asymptotically ω-periodic solution in distribution for some stochastic differential equations with Stepanov pseudo S -asymptotically ω-periodic coefficients

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mondher Damak --- Faculty of Sciences, Sfax University, Tunisia Ekar Sidi Abdalla --- Faculty of Sciences, Sfax University, Tunisia

In this research paper, a mathematical concept known as the ω-periodic process is discussed, and a new type of processes called the doubly measure pseudo -asymptotically ω-periodic in distribution process is set forward. Additionally, the properties of these processes are...

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Social support mediates job demands, and burnout relation among public senior high school teachers, Ghana

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Richard Akutey --- University of Cape Coast, Ghana Daniel Apaak --- University of Cape Coast, Ghana Edward Wilson Ansah --- University of Cape Coast, Ghana

We investigated the extent to which job resources mediated the relationship between job demands and burnout among public senior high school teachers in Ghana. Participants included 1028 public senior high school teachers (female = 491) who have been teaching between...

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Occurrence of contaminants of emerging concern in the uMhlathuze and uThukela river systems, KwaZulu-Natal, South Africa

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LR Nsibande --- University of Zululand, South Africa RF Lehutso --- Water Centre, Council for Scientific and Industrial Research, South Africa M Thwala --- Academy of Science of South Africa, South Africa HMM Mzimela --- University of Zululand, South Africa M Seopela --- University of Johannesburg, South Africa NF Masikane --- University of Zululand, South Africa

Contaminants of emerging concern (CECs), which include inorganic substances, exhibit potential adverse effects on aquatic life even though they commonly occur at very low concentrations in aquatic resources. The lack of data available about the risk of CECs to the...

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Provision of HIV testing services and its impact on the HIV positivity rate in the public health sector in KwaZulu-Natal: a ten-year review

Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Rizwana Desai --- Health Services Planning, Monitoring & Evaluation, South Africa Stanley Onwubu --- Durban University of Technology, South Africa Elizabeth Lutge --- University of KwaZulu-Natal, South Africa Nondumiso Patience Buthelezi --- Health Services Planning, Monitoring & Evaluation, South Africa Nirvasha Moodley --- Health Services Planning, Monitoring & Evaluation, South Africa Firoza Haffejee --- Durban University of Technology, South Africa Bontle Segobe --- Health Services Planning, Monitoring & Evaluation, South Africa Suresh Babu Naidu Krishna --- Durban University of Technology, South Africa Maureen Nokuthula Sibiya --- Durban University of Technology, South Africa Champaklal Chhaganlal Jinabhai --- Durban University of Technology, South Africa

South Africa has been rated as having the most severe HIV epidemic in the world since it has one of the largest populations of people living with HIV (PLHIV). KwaZulu-Natal (KZN) is the epicentre of the HIV epidemic. The HIV...

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Learning and capability building in firms of a developing economy: A study of Ludhiana machine tools manufacturing cluster

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Manpreet Kaur --- Guru Nanak Dev University, India Swati Mehta --- Guru Nanak Dev University, India

Frontier and laggard firms are always engaged in the process of building capabilities through continuous ‘learning’ to compete in the technologically driven world. Firms focus on ‘learning by Doing, Using and Interacting’ (DUI) and/ or ‘learning by Science, Technology, and...

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Understanding depression, anxiety and stress in young people living with HIV in Ghana

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: John-Paul Omuojine --- , Ghana Charles Martyn-Dickens --- , Ghana Sheila Agyiewaa Owusu --- , Ghana Allysa Warling --- , USA Ruth Charlotte Sackey --- , Ghana Gustav Nettey --- , Ghana Evans Otieku --- University of Ghana, Ghana Anthony Enimil --- Kwame Nkrumah University of Science and Technology, Leah Ratner --- , USA

Ghanaians with perinatally acquired human immunodeficiency virus (HIV) infection now live into adulthood. It is known that adolescents and young adults living with HIV have a high risk of mental health comorbidity. Despite increasing global attention on HIV–mental health interactions,...

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Factors associated with uptake of HIV testing among clients diagnosed with sexually transmitted infections in Chegutu District, Zimbabwe, 2021

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Memory Chimsimbe --- University of Zimbabwe, Zimbabwe Pride Mucheto --- University of Zimbabwe, Zimbabwe Tsitsi P Juru --- University of Zimbabwe, Zimbabwe Addmore Chadambuka --- University of Zimbabwe, Zimbabwe Notion T Gombe --- University of Zimbabwe, Zimbabwe Gerald Shambira --- University of Zimbabwe, Zimbabwe Mufuta Tshimanga --- University of Zimbabwe, Zimbabwe

HIV testing services (HTS) enable early linkage to HIV prevention, treatment and care. A review of Chegutu District Health Information System 2 sexually transmitted infection (STI)/HIV data revealed HIV testing rates among those infected with STIs were 41%, 48%, 50%,...

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A systematic literature review of blockchain technology and accounting issues: Is it a hype or hope?

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Aisa Tri Agustini --- University of Jember, Indonesia Jogiyanto Hartono Mustakini --- University of Gadjah Mada, Indonesia

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Do changes in star selection criteria affect analyst behaviour?

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Karam Kim --- Sungkyunkwan University, Republic of Korea Doojin Ryu --- Sungkyunkwan University, Republic of Korea Jinyoung Yu --- Xi'an Jiaotong-Liverpool University, China

This study examines whether the star analyst selection criteria affect analysts’ coverage decisions and the informativeness of their reports. We focus on a change to the star evaluation criteria that increased the importance of quantitative standards. After the reform, analysts...

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The quest for social justice through ICT access and inclusion for rural schools and communities: The South African case of Urglobal

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Luleka Mkuzo --- , Ivan Govender --- Durban University of Technology (DUT), South Africa

Mobile technology has been recognized as a tool in reducing the inequality gap, especially for those in developing communities. With a Gini score of 63 in 2014, South Africa is regarded as one of the most unequal countries in the...

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Inclusive STEM education to fight poverty and inequality: The case of South Africa

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Getachew T. Sedebo --- Tshwane University of Technology, Republic of South Africa Ajebush A. Shafi --- Tshwane University of Technology, Republic of South Africa Mammo Muchie --- Tshwane University of Technology, Republic of South Africa Michael Y. Shatalov --- Tshwane University of Technology, Republic of South Africa

Public higher education institutions (PHEIs) are considered public resources, yet equity in Science, Technology, Engineering, and Mathematics (STEM) fields within these institutions remains a global concern. The South African government acknowledges the importance of STEM education for all, yet its...

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Factors affect the technical efficiency of micro and small enterprises in Ethiopia

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Adamu Mulu Ketema --- Former lecturer at Salale University at the Department of Economics, and Research and Development Officer at the Cooperative Bank of Oromia, Ethiopia

Micro and small enterprises (MSEs) play a crucial role in Ethiopia's economy. Measuring the technical efficiency of enterprises is thus of interest to various stakeholders. This study measured and estimated technical efficiency using a stochastic frontier and a maximum-likelihood approach...

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Considering risk associated with leisure time physical activity (LTPA) at craft breweries: overlooking dangers in the name of fun

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Alana N Seaman --- Tourism, Recreation, & Sport, University of North Carolina Wilmington, USA Lindsey Schroeder --- Athletic Training, University of North Carolina Wilmington, USA Madison Peace --- Athletic Training, University of North Carolina Wilmington, USA Michele Abee --- Bellarmine University, USA Laura Morris --- Tourism, Recreation, & Sport, University of North Carolina Wilmington, USA

Many breweries in the US have become popular settings for leisure time physical activity (LTPA). While risk is widely accepted as an inherent part of sport and physical activity (PA), breweries are places of increased risk due to the nature...

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Concentration and cavitation in the Riemann solution for the relativistic Euler equations with non-ideal isothermal dusty gas

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bencui Shan --- Yunnan Normal University, P.R. China Yanyan Zhang --- Xinyang Normal University, P.R. China Yu Zhang --- Yunnan Normal University, P.R. China

The phenomena of concentration and cavitation in the Riemann solutions of the relativistic Euler equations with non-ideal isothermal dusty gas are considered. The Riemann problem is solved first, and the solutions consisting of rarefaction waves and shock waves are obtained...

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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, China

The 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...

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Bayesian forecasting of stock returns on the JSE using simultaneous graphical dynamic linear models

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Nelson Kyakutwika --- Stellenbosch University, South Africa Bruce Bartlett --- Stellenbosch University, South Africa

Cross-series dependencies are crucial in obtaining accurate forecasts when forecasting a multivariate time series. Simultaneous Graphical Dynamic Linear Models (SGDLMs) are Bayesian models that elegantly capture cross-series dependencies. This study forecasts returns of a 40...

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Momentum trading: How it differs among investor segments

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Baki Cem Şahin --- Central Bank of Türkiye, Türkiye

This study explores the momentum trading behaviours across different investor segments in the Turkish stock market. The empirical analysis confirms the positive return of the momentum strategy both in absolute terms and relative to the market benchmark, and the results...

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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 Africa

The 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...

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Reconceptualising success in hospitality internships: a new perspective on students’ achievement factors

Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Nicole Vermolen --- NHL Stenden University of Applied Sciences, The Netherlands

This viewpoint article examines the challenges and factors influencing student success during hospitality internships, particularly those organised by a hotel management school in collaboration with international host companies. A previous study on the topic highlights that only 21% of students...

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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 Africa

Recent 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...

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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, Kenya

Quinoa (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...

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Childhood Trauma and Remembrance: Weaponised PTSD in Glaydah Namukasa’s The Deadly Ambition

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Gabriel Kosiso Okonkwo --- Rhodes University, South Africa

Defining crime within the prism of personal responsibility without recourse to its triggers engenders post-traumatic stress disorder (PTSD) in victims of unfair hearings. While literary studies interrogating blame for traumatic reactions on the basis of personal responsibility or choice abound,...

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Does parental education moderate the association between personal growth initiative, purpose in life and subjective well-being among Chinese college students?

Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xiaoxia Huang --- Huzhou Vocational and Technical College, China Hong Li --- Zhoukou Vocational and Technical College, China Yungui Guo --- Hunan University of Science and Technology, China

We investigated the moderating effect of parental education on the relationship between personal growth initiative, purpose in life, and subjective well-being. Two-wave time-lagged data with an interval of three months were collected from 491 students (mean age = 19.58 years,...

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Eunicid polychaete worms used as bait with particular reference to Australia, South Africa and France; the need for development of management plans based on their biology and ecology

Item type: Journal Article • Journal: African Zoology • Authors: Pat Hutchings --- Australian Museum Research Institute, Australia Jyothi Kara --- , South Africa Nicolas Lavesque --- CNRS, Université de Bordeaux, Bordeaux INP, EPOC,

Worldwide, bait worms are collected for recreational and subsistence fishing, and fetch high prices in bait shops. While a variety of polychaete families are collected, we focus only on the “Marphysa” group (Family Eunicidae) occurring in rivers, estuaries and protected...

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The mediating role of transformational leadership in the relationship between institutional pressures and collaboration with commercialization of university research output: A pilot study

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Gregory Tweheyo --- Bustema University, Uganda Ernest Abaho --- Makerere University Business School, Uganda Anju M. Verma --- Texila American University, Guyana Ibrahim Musenze --- Bustema University, Uganda

The purpose of this study is to lay emphasis on Uganda’s universities in light of the examination of how institutional pressures and collaboration influence the commercialization of university research output with the mediating role of transformational leadership. Data were collected...

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An investigation into the innovation-economic growth nexus in Mauritius

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Harris Neeliah --- Independent Researcher, Mauritius Boopen Seetanah --- University of Mauritius, Mauritius Lomendra Vencataya --- University of Mauritius, Mauritius

This paper extends the existing strand of research, delving into the link between innovation and economic growth for the small island developing state of Mauritius. The innovation-growth relationship is analyzed within a multivariate endogenous growth model, spanning the period 1970...

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Factors influencing the adoption and usage of blockchain in e-commerce: A systematic literature review

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mishir Roopnarain --- University of Witwatersrand, South Africa Samwel Dick Mwapwele --- University of Witwatersrand, South Africa

Businesses using e-commerce are worried about their databases and client’s data security. Researchers have suggested businesses should adopt and use blockchain technology to address the security challenges in e-commerce. However, blockchain technology has flaws that inhibit acceptance, adoption, and usage...

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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

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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 Africa

The 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...

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Value-chain analysis of Kenya’s artisanal tuna fishery focusing on skipjack tuna Katsuwonus pelamis and kawakawa Euthynnus affinis

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: FA Mzingirwa --- Rhodes University, South Africa GM Okemwa --- Kenya Marine and Fisheries Research Institute (KMFRI), Kenya O Marcone --- , United Kingdom CS Bova --- Rhodes University, South Africa S Viana --- Rhodes University, South Africa WHH Sauer --- Rhodes University, South Africa

This study investigates the value chain of Kenya’s artisanal tuna fishery targeting skipjack tuna Katsuwonus pelamis and kawakawa Euthynnus affinis. The study used an integrated approach combining a questionnaire survey and catch assessment data at four landing sites along the...

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The grazer Cymbula oculus (Patellogastropoda: Patellidae) serves as an important settlement substrate for several of its macroalgal prey

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: W Moosa --- University of the Western Cape, South Africa J Phillips --- University of the Western Cape, South Africa GW Maneveldt --- University of the Western Cape, South Africa

Intertidal communities are predictably affected by both physical and biological factors, with herbivory as a particularly important factor. Instead of dense beds of macroalgae, which typically characterise the mid-eulittoral zone along the south coast of South Africa, at Kalk Bay...

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Exploratory characterisation of recreational fishing for skipjack tuna Katsuwonus pelamis and eastern little tuna Euthynnus affinis in South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Viana --- University of Cape Town, South Africa MW Farthing --- Rhodes University, South Africa C Bova --- Rhodes University, South Africa O Marcone --- , United Kingdom WHH Sauer --- Rhodes University, South Africa

Despite being important to artisanal and industrial fisheries, little is known about the role of skipjack tuna Katsuwonus pelamis and the eastern little tuna (or kawakawa) Euthynnus affinis in recreational fisheries. This study used a banner-recruited, online questionnaire of recreational...

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Assessing the socio-economic value of shark diving in the Protea Banks Marine Protected Area, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ML Dicken --- , South Africa AV Towner --- Rhodes University, South Africa B Mauz --- , South Africa R Mauz --- , South Africa

Protea Banks, a reef off the east coast of South Africa and a renowned dive destination, attained marine protected area (MPA) status in 2019. This study investigates the economic significance of the shark diving industry at this MPA and examines...

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Antagonistic aria: vocalisations of the male slender feather-tailed leaf-toed gecko (Gekkonidae: Kolekanos plumicaudus)

Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Francois S Becker --- National Museum of Namibia, Ministry of Education, Arts and Culture, Namibia Pedro Vaz Pinto --- CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Laboratório Associado, Universidade do Porto, Portugal Javier Lobón-Rovira --- CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Laboratório Associado, Universidade do Porto, Portugal

Kolekanos plumicaudus is a gecko endemic to the Namib Desert in south-western Angola. It is distantly related to all other geckos in the region, except for its one congener, K. spinicaudus. There have been no scientific accounts on the social...

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Breeding ecology of the Madagascar Grebe Tachybaptus pelzelnii in Bemanevika Protected Area in the northern highlands of Madagascar

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Delphin Rasolonjatovo --- The Peregrine Fund Madagascar Project, Madagascar Lily-Arison Rene De Roland --- The Peregrine Fund Madagascar Project, Madagascar Tolojanahary Andriamalala --- The Peregrine Fund Madagascar Project, Madagascar Marius Rakotondratsima --- The Peregrine Fund Madagascar Project, Madagascar Séraphin Fabrice --- The Peregrine Fund Madagascar Project, Madagascar Stéphanie Razakaratrimo --- The Peregrine Fund Madagascar Project, Madagascar Yverlin ZM Pruvot --- The Peregrine Fund Madagascar Project, Madagascar Russell Thorstrom --- The Peregrine Fund, United States

We studied the breeding ecology of the endangered Madagascar Grebe Tachybaptus pelzelnii (family Podicipedidae) at Bemanevika Protected Area, during two consecutive years (October 2020–September 2022). Two breeding units were observed: pairs and trios made up of one male and two...

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Trends and population size of White-necked Rockfowl Picathartes gymnocephalus within the Nyamibe Bepo Forest Reserve in Ghana

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Joseph Kwasi Afrifa --- Ghana Wildlife Society, Accra Conservation Education Centre, Ghana Ernestina Ahema --- Ghana Wildlife Society, Accra Conservation Education Centre, Ghana Winston Kanyi --- Ghana Wildlife Society, Accra Conservation Education Centre, Ghana Gideon Nyamekye Osei --- Ghana Wildlife Society, Accra Conservation Education Centre, Ghana Darkwah Yaw Amoateng --- Ghana Wildlife Society, Accra Conservation Education Centre, Ghana Augustus Asamoah --- Proforest Africa Regional Office, Ghana

The White-necked Rockfowl Picathartes gymnocephalus (family Picathartidae) is endemic to the Upper Guinea forest and has a global population of <10 000 mature individuals. This species is listed as Vulnerable on the IUCN Red List owing to its declining population,...

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Re-storying Nature: An Eco-critical Reading of Parkes’s Tail of the Blue Bird

Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Samuel Kwesi Nkansah --- University of Cape Coast, Ghana

This paper applies African eco-criticism to analyse human-nature relationships in Nii Ayikwei Parkes’s Tail of the Blue Bird. From the discussions, vivid depictions of rivers, forests, animals and spirits showcase profound connections through which nature shapes cultural identities. Specifically, Parkes’s...

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Forecasting oil futures markets using machine learning and seasonal trend decomposition

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Ahhyun Kim --- Sungkyunkwan University, Korea Doojin Ryu --- Sungkyunkwan University, Korea Alexander Webb --- University of Wollongong, Australia

Can machine learning improve prediction for seasonal commodity prices? We explore the effectiveness of a combined method that integrates seasonal trend decomposition using LOESS (STL) with machine learning (ML), referred to as STL-ML. We apply Extreme Gradient Boosting and Random...

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$On the analysis and integrability of the time-fractional stochastic potential-KdV equation$

On the analysis and integrability of the time-fractional stochastic potential-KdV equation

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Nida Zinat --- Government College University, Pakistan Akhtar Hussain --- The University of Lahore, Pakistan A.H. Kara --- University of the Witwatersrand, South Africa F.D. Zaman --- Government College University, Pakistan

This study investigates the invariance properties of the time-fractional stochastic potential-KdV (FSP-KdV) equation, intending to enhance our understanding of the dynamics associated with nonlinear photon and optical soliton propagation. The application of the Lie group analysis method enables the derivation...

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Dietary behaviour among adults in Northern Ghana: a polytomous logistic regression model approach

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Kwame Opare-Asamoah --- University for Development Studies, Ghana Daniel Edem Kpewou --- University for Development Studies, Ghana Jerry Xola Sosu --- University for Development Studies, Ghana Vicentia Esinam Degbey --- University for Development Studies, Ghana Ezekiel Kofi Vicar --- University for Development Studies, Ghana Julius T Dongdem --- University for Development Studies, Ghana Saeed F. Majeed --- University for Development Studies, Ghana Kwadwo Fosu Antwi --- University for Development Studies, Ghana

Objectives: This study determined the predictors of dietary behaviour among adults living in an urban and rural location in northern Ghana.

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Understanding the factors associated with child malnutrition in rural Burundi: experiences from the Muyinga and Ngozi provinces

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Willy Désiré Emera --- Ghent University, Belgium Marijke D’Haese --- Ghent University, Belgium Wannes Slosse --- Ghent University, Belgium Carl Lachat --- Ghent University, Belgium

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An approach to timber monitoring in the Brazilian Amazon through transport elements

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Vinicius Otavio Benoit Costa --- Federal University of Paraná (UFPR), Brazil Matheus Speranceta Fernandes --- Federal University of Paraná (UFPR), Brazil Fábio Guerra Santos --- Federal University of Paraná (UFPR), Brazil Henrique Soares Koehler --- Federal University of Paraná (UFPR), Brazil Renato Cesar Gonçalves Robert --- Federal University of Paraná (UFPR), Brazil

Sustainable forest management plans (SFMP) are important tools for the proper use of forest resources in the Brazilian Amazon and reliability in the timber chain of custody is one of the premises to guarantee legal origin. However, in disagreement with...

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Quality characteristics of forage in the sowing year of a standard perennial pasture established with annual ryegrass, barley, and berseem clover as companion crops

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Hasan Beytullah Dönmez --- Çukurova University, Turkey Rustu Hatipoglu --- Kırşehir Ahi Evran University, Turkey

This study was conducted to determine the effect of different seed sowing rates (25%, 50%, 75%, 100% of the recommended pure stand of the species) and harvesting stages (early harvest, late harvest) of annual ryegrass, barley, and berseem clover used...

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f-rough Cauchy sequences

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Tamim Aziz --- University of North Bengal, India Sanjoy Ghosal --- University of North Bengal, India

In this article, we narrated the new notion of rough f-statistical convergence and rough f-statistical Cauchy sequences, successively becoming a more generalized version of rough statistical convergence and rough statistical Cauchy sequences. Consecutively, compare the following important theorems with those...

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Institutional scaffolding: MNEs responses to institutional weakness in contexts of violent conflict

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Emmanuel Ekpenyong --- Nyenrode Business University, The Netherlands Diana Santistevan --- EM Normandie, Laboratoire Métis, France Yasmina Khadir --- Nyenrode Business University, The Netherlands Rob Blomme --- Nyenrode Business University, The Netherlands

Multinational enterprises (MNEs) use a variety of strategic responses to navigate weak institutional contexts. Scholars of MNE responses general focus on relatively stable regions. This paper examines how MNEs navigate institutional weaknesses in contexts of violent conflict by examining the...

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Type 2 diabetes mellitus but not overweight/obesity reduces testicular volume and endocrine function in men

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: E Musa --- Kaduna State University, Nigeria GC Musa --- University of Cape Town, South Africa E Salazar-Petres --- Universidad San Sebastián, Carrera de Obstetricia, Chile F Bello --- Ahmadu Bello University, Nigeria AG Bakari --- Ahmadu Bello University, Nigeria

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Influence of actors’ interactions under agricultural innovation system lens on the adoption of rice innovations in Mvomero district and Ifakara Town council

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sospeter Jibunge Charles --- University of Dar es Salaam, Tanzania

This study addresses the gap in empirical evidence on how and to what extent interactions among numerous actors within the Agricultural Innovation System (AIS) can influence smallholder farmers’ adoption of rice innovations. The study employed a mixed-methods embedded design to...

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Adoption of orange-fleshed sweet potato and technical efficiency nexus in Nigeria: An endogeneity corrected stochastic production frontier approach

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Adetomiwa Kolapo --- Obafemi Awolowo University, Nigeria Akeem Abiade Tijani --- Obafemi Awolowo University, Nigeria

Due to low productivity and lack of essential nutrients like vitamin A in the traditional white and yellow potato, orange-fleshed sweet potato (OFSP) was introduced to the farmers in Nigeria through a programmed tagged Jumpstarting Project. However, empirical data about...

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Population growth of Daphnia magna cultured in manure-fertilised water under laboratory conditions

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Adamneh Dagne --- Ethiopian Institute of Agricultural Research (EIAR), National Fishery and other Aquatic Life Research Center, Ethiopia Getacher Beyene --- Ethiopian Institute of Agricultural Research (EIAR), National Fishery and other Aquatic Life Research Center, Ethiopia Alemayehu Wubie --- Ethiopian Institute of Agricultural Research (EIAR), National Fishery and other Aquatic Life Research Center, Ethiopia

In developing countries, mass production of Daphnia magna, used as a food in freshwater aquaculture, is a challenge. A fifteen-day laboratory experiment was conducted to examine the population growth and reproductive parameters for D. magna reared in green water fertilised...

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The Common Hermitian Solutions of the matrix equations B 2 X B 2 * = A 2 and B 3 X B 3 * = A 3 subject to inequality restrictions

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Zhanshan Wang --- Northeastern University, P.R. China Huiting Zhang --- Northeastern University, P.R. China Honglin Zou --- Zhejiang Shuren University, P.R. China

Problem CHS: Given , find such that X ≥ 0 (> 0), where is given by

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Probabilistic bivariate Bell polynomials

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Dae San Kim --- Sogang University, Republic of Korea Taekyun Kim --- Kwangwoon University, Republic of Korea

Let Y be a random variable whose moment generating function exists in some neighborhood of the origin. We consider the probabilistic bivariate Bell polynomials associated with Y and the probabilistic bivariate r-Bell polynomials associated with Y. For those polynomials, we...

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Occurrence and persistence of Blacksmith Lapwings Vanellus armatus and Crowned Lapwings V. coronatus and their reproductive success in an urban mosaic landscape

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Feziwe Phoswa --- School of Life Sciences, University of KwaZulu-Natal, South Africa S Thobeka Gumede --- School of Life Sciences, University of KwaZulu-Natal, South Africa Colleen T Downs --- School of Life Sciences, University of KwaZulu-Natal, South Africa

Urbanised landscapes continue to expand globally, leading to increased habitat fragmentation, which creates a mosaic of natural and managed landscapes. These environmental changes have an impact on bird populations, and are reflected in the declining populations of open-habitat species. Despite...

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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, Uganda

The 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...

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Rapid assessment of the Seychelles octopus (Octopus cyanea) fishery value chain: insights for sustainable management

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J McCafferty --- Rhodes University, South Africa A Ebrahim --- , Seychelles WHH Sauer --- Rhodes University, South Africa R Wright --- , South Africa A Vidot --- , Seychelles V Schmidt --- Food and Agriculture Organization of the United Nations (FAO), Italy

The octopus fishery for Octopus cyanea in Seychelles plays an important role in local cuisine, culture and tourism, yet it is unmanaged unlike other octopus fisheries in the western Indian Ocean region. We conducted a rapid assessment of the octopus...

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HIV stigma in faith communities in South Africa: A cross-sectional study

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Germari Kruger --- North-West University, South Africa Eduardus A. J. G van der Borght --- Vrije Universiteit, The Netherlands Martha T Teijema --- Vrije Universiteit Medical Centre, The Netherlands Sabine L van Elsland --- School of Public Health, Imperial College London, United Kingdom Stella L. E Münninghoff --- Vrije Universiteit, The Netherlands Marceline Tutu van Furth --- Amsterdam University Center, Emma’s Children’s Hospital, Amsterdam Institute for Infectious Diseases and Immunology, The Netherlands

Background: The role of religion and faith in the context of HIV stigma is complex. It is important to recognise the diversity of religious beliefs and practices and to work with faith communities to promote a compassionate, non-stigmatising response to...

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Influence of self-compassion on HIV-related stigma, health-related quality of life, and depression among HIV/AIDS patients

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Chinenye Joseph Aliche --- North West University, South Africa Erhabor Sunday Idemudia --- North West University, South Africa Michael O. Ezenwa --- Nnamdi Azikiwe University, Nigeria

Background: People living with HIV/AIDS (PLWHA) may experience HIV-related stigma, which could negatively impact health-related quality of life (HRQoL) and increase symptoms of depression. Self-compassion is a positive personality attribute that may protect PLWHA against stigmatisation. Previous studies have not...

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Stigma reduction Interventions for adolescents and young adults living with HIV in Sub-Saharan African countries: The state of the evidence

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Dorothy Serwaa Boakye --- University of Education, Ghana Samuel Adjorlolo --- School of Nursing and Midwifery, College of Health Sciences, University of Ghana, Ghana

Background: HIV-related stigma remains a significant barrier to well-being and access to healthcare for adolescents and young adults living with HIV in Sub-Saharan Africa. Stigma reduction interventions have been developed to address this challenge, but the effectiveness of these interventions...

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The roadblocks to progress: A comprehensive study on the relationship between regional institutional quality and firms’ innovation of sub-Saharan African nations

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abel Dula Wedajo --- University of Sanya, People’s Republic of China Xiao Huilin --- University of International Business and Economics (UIBE), People’s Republic of China

This study examines the impact of regional institutional quality (level two) on firm-level innovation (level one) in Sub-Saharan Africa (SSA), where cultural and institutional diversity challenges frameworks derived from homogeneous contexts. Analyzing 7,578 firms across Ethiopia, Kenya, Rwanda, Tanzania, Uganda,...

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The role of academic institutions in leveraging innovation through patenting activities: A diagnostic of the Moroccan experience focusing on the agricultural sector

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sanaa Zebakh --- Ibn Tofail University, Morocco Jaouad Anissi --- EUORMED Research Centre EI-BIOMEDTECH, EUROMED University of Fes, Morocco, Salim Bounou --- EUORMED Research Centre EI-BIOMEDTECH, EUROMED University of Fes, Morocco, Mohammed Sadiki --- Rabat-Instituts, Morocco

In the late 2000s, Morocco implemented various actions and programmes to establish a National Innovation System, which has helped to bolster innovation and patenting activities within higher education and research institutions. This article investigates the Moroccan innovation framework that facilitated...

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Chemical composition and in-vitro dry matter degradability of Eragrostis curvula grass hay supplemented with Raphanus sativus

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Lwando Mbambalala --- School of Agricultural, Earth and Environmental Science, University of KwaZulu-Natal, South Africa Ntuthuko Raphael Mkhize --- School of Agricultural, Earth and Environmental Science, University of KwaZulu-Natal, South Africa Thamsanqa Doctor Empire Mpanza --- Agricultural Research Council-Animal Production: Animal Nutrition Section, South Africa Zikhona Theodora Rani-Kamwendo --- School of Agricultural, Earth and Environmental Science, University of KwaZulu-Natal, South Africa Sphesihle Mkhungo --- Department of Agriculture and Rural Development, South Africa Lucky Sithole --- Department of Agriculture and Rural Development, South Africa Mutshidzi Given Musekwa --- School of Agricultural Sciences, Faculty of Natural and Agricultural Sciences, South Africa Lusanda Ncisana --- School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, South Africa Khuliso Ravhuhali --- School of Agricultural Sciences, Faculty of Natural and Agricultural Sciences, South Africa Tlou Julius Tjelele --- University of South Africa, South Africa

In developing countries, smallholder livestock farmers face significant challenges due to inadequate feed availability and poor-quality forage. This study investigated the potential of fodder radish (Raphanus sativus) as a protein supplement for low-quality grass hay. Specifically, it examined the effects...

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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 Africa

Translanguaging 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...

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Congruences modulo powers of 5 for partitions into odd and distinct parts

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Dazhao Tang --- Chongqing Normal University, P.R. China

Let Q 0(n) denote the number of partitions of n into odd and distinct parts. In 1969, Rødseth proved an infinite family of congruences modulo high powers of 5 for Q 0(n) by employing the theory of modular forms. In...

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Height–diameter allometric models for commercial species in the south-western region of the Brazilian Amazon

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Lucas Dalmolin Ciarnoschi --- Federal University of Paraná, Brazil Sylvio Péllico Netto --- Federal University of Paraná, Brazil Allan Libanio Pelissari --- Federal University of Paraná, Brazil Marcus Vinicio Neves d’Oliveira --- , Brazil Alexandre Behling --- Federal University of Paraná, Brazil Claiton Nardini --- Federal University of Paraná, Brazil João Paulo Sardo Madi --- Federal University of Paraná, Brazil

Accurate total height estimates in Brazilian Amazon forests are still scarce. This study aimed to (1) evaluate a method for stratifying data by potential height (quasi-asymptotic heights) to group the species; (2) fit a regression model using potential heights (quasi-asymptotic...

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The bias of IID resampled backtests for rolling window mean-variance portfolios

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Andrew Paskaramoorthy --- Department of Statistical Sciences, University of Cape Town, South Africa Terence van Zyl --- University of Johannesburg, South Africa Tim Gebbie --- Department of Statistical Sciences, University of Cape Town, South Africa

Backtests on historical data are fundamental for evaluating portfolio selection rules, but their reliability is often limited by reliance on a single sample path. This reliance can lead to high estimation variance. IID resampling offers a potential solution by increasing...

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The influence of selected non-financial and macroeconomic determinants on delistings in South Africa

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Peter Lansdell --- University of Johannesburg, South Africa Ilse Botha --- University of Johannesburg, South Africa Ben Marx --- University of Johannesburg, South Africa

This study explores the factors possibly driving delisting from the Johannesburg Stock Exchange (JSE) in South Africa, focusing on selected non-financial and macroeconomic determinants. Using data from 2010 to 2023, the analysis covers 302 delisted companies and a matched control...

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Risk and protective factors of suicide ideation and attempts among justice-involved black girls: A latent profile analysis

Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Lin Liu --- University of Florida, United States of America

Background: Justice-involved female youth from minority racial groups are a hard-to-reach youth population that are removed from schools, families, and communities. They are under-represented in school survey data. The present study aimed to utilise the Interpersonal-Psychological Theory of Suicide to...

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Who will be more likely to seek help? The relationship between suicidal ideation, suicide literacy, attitudes toward suicide and help-seeking intention in male and female adolescents

Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Bich-Phuong Vu --- RMIT University Vietnam, Vietnam Ha-Giang Nguyen --- University of Education, Vietnam National University Hanoi, Vietnam Hoang-Minh Dang --- University of Education, Vietnam National University Hanoi, Vietnam

Objectives: Among adolescents, suicide is a critical global concern, yet research is limited in low- and middle-income countries. The primary aim of this study is to investigate the interrelations among suicide-related factors (specifically, suicidal ideation, suicide literacy, attitudes toward suicide,...

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Epidemiology, spectrum, and pathology of surgical thyroid resections in a metropolitan South African setting

Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: M van der Merwe --- Chris Hani Baragwanath Academic Hospital, South Africa AR Botha --- Chris Hani Baragwanath Academic Hospital, South Africa D van der Byl --- Chris Hani Baragwanath Academic Hospital, South Africa

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Izingqinamba ezibhekene nabalingiswa abathandana nobulili obufanayo emibhalweni yesiZulu: Kugxilwe enovelini ethi Bengithi lizokuna nethi Mthathe Ungowakho!

Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Melusi Ernest Msomi --- University of KwaZulu Natal, South Africa Phindile Dorothy Dlamini --- University of KwaZulu Natal, South Africa

Leli phepha lihlose ukuhlaziya nokucubungula izingqinamba nokungemukeleki kwabalingiswa abathandana nobulili obufana nobabo enovelini ethi Bengithi Lizokuna kanye nethi Mthathe Ungowakho! Inoveli ethi Bengithi Lizokuna ibhalwe nguNakanjani Sibiya, yashicilelwa ngowezi-2008 kanti inoveli ethi Mthathe Ungowakho ilotshwe nguScelo Ntshangase kanti ishicilelwe ngonyaka...

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ChiShona lexical interference in Zimbabwean isiNdebele: A case of selected schools in Gweru

Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Cordial Bhebe --- University of the Free State, Martha Khosa --- University of the Free State,

The study explores syntactic interference involving isiNdebele and ChiShona in the teaching and learning of isiNdebele in a dominant ChiShona-speaking environment. The study was undertaken in secondary schools in Gweru in Zimbabwe. The investigation adopted a qualitative paradigm, while the...

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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 Africa

This 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...

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A new Rain Frog (Anura: Brevicipitidae; Breviceps) from the KwaZulu-Natal Midlands, South Africa

Item type: Journal Article • Journal: African Journal of Herpetology • Authors: LH du Preez --- North-West University, South Africa EC Netherlands --- North-West University, South Africa LR Minter --- North-West University, South Africa

Breviceps, an African genus of fossorial frogs, comprises 20 species most of which occur in South Africa. In this study we describe a new species that differs morphologically from its closest congener Breviceps verrucosus, in the position of the mouth...

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Call description and extended range of Phrynobatrachus mayokoensis in Gabon

Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Ryan van Huyssteen --- Ecological Services Ltd, British Virgin Islands Melissa Petford --- Ecological Services Ltd, British Virgin Islands Marius Burger --- Ecological Services Ltd, British Virgin Islands Mark-Oliver Rödel --- , Germany Joris Ngoulou --- Ecological Services Ltd, British Virgin Islands Abraham Bamba Kaya --- Ecological Services Ltd, British Virgin Islands Etienne Akomo Okoue --- Ecological Services Ltd, British Virgin Islands Jerome Gaugris --- Ecological Services Ltd, British Virgin Islands

This study presents the first description of the advertisement call of Phrynobatrachus mayokoensis and reports a new locality record for this species in Gabon. During June 2022, two specimens were found in the Baniaka region, Haut-Ogooué Province, Gabon. The call...

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Fintech predictive modelling using machine learning: An empirical investigation of South Africa

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abraham Emuron --- Tshwane University of Technology, South Africa Abraham Dimitri Kapim Kenfack --- Tshwane University of Technology, South Africa Mandla Msimanga --- Tshwane University of Technology, South Africa

A significant change in the financial industry has been brought about by technological advancements and shifting consumer behaviour. The result has been the emergence of fintech. Consequently, this paper constructs predictive models to forecast the adoption of fintech in South...

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Ghost gear crisis: the threat of ‘abandoned, lost or otherwise discarded fishing gear’ (ALDFG)

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LA Odhiambo --- Directorate of Research and Innovation, Kenya F Kawaka --- Jaramogi Oginga Odinga University of Science and Technology, Kenya J Sande --- , Kenya

Abandoned, lost or otherwise discarded fishing gear (ALDFG), also known as ghost gear, represents one of the most under-addressed environmental threats. ALDFG is a problem because it is often non-biodegradable and continues to trap marine life long after the gear...

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Comparing seismic survey mitigation regulations: lessons for South Africa from international frameworks

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Purdon --- Tshwane University of Technology, South Africa MJ Somers --- University of Pretoria, South Africa FW Shabangu --- University of Pretoria, South Africa Y Doh --- , France J Scheun --- Tshwane University of Technology, South Africa

Underwater seismic surveys generate high-intensity, low-frequency noise that can negatively affect a range of marine fauna. As a result, countries have implemented mitigation regulations to reduce the potential impacts of this activity. This study examines seismic survey mitigation regulations from...

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Too cold to sing: Warbler dawn chorus affected by environmental factors in a high-elevation wetland

Item type: Journal Article • Journal: African Zoology • Authors: Toka Mosikidi --- University of the Free State, South Africa Nicholas R Friedman --- Leibniz Institute for the Study of Biodiversity Change, Germany Nicholas Le Maitre --- University of the Free State, South Africa Sandy-Lynn Steenhuisen --- University of the Free State, South Africa Vincent Ralph Clark --- University of the Free State, South Africa Kyle John Lloyd --- University of the Free State, South Africa Aliza le Roux --- University of the Free State, South Africa

Many bird species take part in a dawn chorus, the phenomenon in which the community of songbirds in a particular habitat, show a peak of vocal activity around dawn. Understanding the species-specific extrinsic factors affecting this intensive singing activity is...

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Prediction of ambient air pollution with regression approach using machine learning

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Bachandeep Singh Bhathal --- University Institute of Computing, Chandigarh University, India Gaurav Gupta --- Punjabi University, India Brahmaleen Kaur Sidhu --- Punjabi University, India

Accurate air quality prediction is vital for managing pollution and protecting public health. This study evaluates the performance of three machine learning models – Decision Tree Regression (DTR), Linear Regression (LR), and Random Forest Regression (RFR) – to forecast the...

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Nutritional management of a patient with acute myeloid leukaemia complicated by gastrointestinal symptoms and typhlitis

Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Zelda Hugo --- Pretoria East Hospital,

Leukaemia is the 11th most prevalent cancer worldwide, with acute myeloid leukaemia (AML) representing an acute and highly aggressive subtype that requires urgent medical intervention. Although national data on incidence and mortality in South Africa remain limited, an epidemiological study...

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The mediating effect of individual beliefs between self-testing knowledge and HIV self-testing use

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gerald Mukisa Nsereko --- Makerere University, Uganda Khamisi Musanje --- Makerere University, Uganda Loyce Kiiza Kobusingye --- Makerere University, Uganda Martin Mabunda Baluku --- Makerere University, Uganda

Background: HIV self-testing has been introduced as a secondary mode of testing in most countries as a way of counteracting the barriers associated with the traditional clinic-based method of testing. As the entry point into the HIV care cascade, testing...

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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,...

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Sublethal agrochemical residues in South African birds, 1969–2024

Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Lorinda A Hart --- BirdLife South Africa, South Africa Linda van den Heever --- BirdLife South Africa, South Africa Jan-Dieter Ludwigs --- , Germany

Avian species serve as a barometer of ecosystem health and have been used to determine the presence of chemicals in the South African environment. We conducted a literature review to determine which sublethal agrochemical active ingredient residues have been tested...

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Quality assessment of groundwater in a crystalline semi-urbanised environment (Lefock watershed, Cameroon)

Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Lauric Tontsa --- University of Dschang, Cameroon Emile Temgoua --- University of Dschang, Cameroon Obina Chigoziem Akakuru --- Federal University of Technology, Nigeria Hara Toukou --- University of Dschang, Cameroon Guillaume Bertrand --- Univerité de Bourgogne Franche-Comté, France Patrick Lachassagne --- Université de Montpellier, France

This study provides an assessment of the hydrogeochemical processes influencing shallow groundwater quality in the Lefock watershed (crystalline area, Cameroon). Seventeen groundwater samples were collected in May 2021 during the rainy season. These samples were analysed for their physical characteristics...

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The flexural and sawn timber properties of Pinus patula × tecunumanii (low elevation) from the southern Cape, South Africa

Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: C Brand Wessels --- Stellenbosch University, South Africa Christel Malek --- MTO Group, South Africa Gary R Hodge --- North Carolina State University, USA Bruno Monteiro Balboni --- Stellenbosch University, South Africa

Pinus species currently planted for saw log production in the southern Cape, South Africa, present various challenges for growers and processors, including susceptibility to Fusarium circinatum, poor stem form, and various wood quality concerns. In this study P. patula ×...

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“We wait to become”: The politics of selfhood, culture and control in waiting mothers’ shelters

Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Brenda Muchabveyo --- University of Free State, South Africa

In this article, I explore how cultural norms, bodily autonomy and institutional control intersect in shaping maternal care in a waiting mothers’ shelter (WMS) in Mawadza, a rural community in Mutasa District, Zimbabwe. Looking through a symbolic interactionist lens, I...

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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, Namibia

In 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...

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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 Africa

The 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...

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Comparing the activity of exploited and unexploited populations of a reef-dwelling seabream, Chrysoblephus laticeps, during an extreme upwelling and cold-spell event

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NT Mlotshwa --- Rhodes University, South Africa MR Skeeles --- Rhodes University, South Africa MI Duncan --- Rhodes University, South Africa C Muller --- Rhodes University, South Africa WM Potts --- Rhodes University, South Africa AC Winkler --- Rhodes University, South Africa A-R Childs --- Rhodes University, South Africa

Along the south coast of South Africa, extreme upwelling events lead to rapid temperature declines and prolonged marine cold-spells, which have, on occasion, led to large-scale mortalities of coastal fishes. In a somewhat antagonistic process, fishing exploitation has been shown...

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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 Africa

The 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...

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Unravelling the mystery of a unique giant trevally Caranx ignobilis aggregation in the Mtentu Estuary, Pondoland Marine Protected Area, South Africa

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RB Dixon --- Rhodes University, South Africa BQ Mann --- Rhodes University, South Africa TS Murray --- Rhodes University, South Africa PD Cowley --- Rhodes University, South Africa R Daly --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa

The giant trevally Caranx ignobilis (family Carangidae) is an iconic apex predatory fish valued by recreational and commercial fisheries globally. A seasonal but episodic aggregation of up to ∼1 000 individuals takes place in the Mtentu Estuary in the Eastern...

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Methane emission and performance indicators of sheep fed Super Napier grass, sodium hydroxide-treated rice straw and leaves of two browse species (Leucaena leucocephala and Albizia lebbek)

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: FO Sarkwa --- College of Basic and Applied Sciences, University of Ghana, Ghana V Antwi --- College of Basic and Applied Sciences, University of Ghana, Ghana EC Timpong-Jones --- College of Basic and Applied Sciences, University of Ghana, Ghana FY Obese --- College of Basic and Applied Sciences, University of Ghana, Ghana T Adogla-Bessa --- Evangelical Presbyterian University College, Ghana DY Osei --- Animal Research Institute, Ghana F Adu Boahene --- College of Basic and Applied Sciences, University of Ghana, Ghana S Andoh --- College of Basic and Applied Sciences, University of Ghana, Ghana

Methane produced during enteric fermentation in ruminants is influenced by dietary factors. To lower enteric methane emissions without lowering overall production performance, appropriate diets are needed. Thus, the performance and methane emission of sheep fed Super Napier grass (SN), sodium...

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Management entrenchment: Determinants and impact on firm performance of French listed companies

Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Mounir Jaouadi --- Arab Open University, Kingdom of Saudi Arabia Amira Feidi --- University of Tunis El-Manar, Tunisia

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Comparison of three methods to assess pre-harvest sprouting in wheat

Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: SI Hull --- Stellenbosch University, South Africa PA Swanepoel --- Stellenbosch University, South Africa WC Botes --- Stellenbosch University, South Africa C Mutengwa --- University of Fort Hare, South Africa

Pre-harvest sprouting (PHS) in wheat (Triticum aestivum L.) is an increasing concern, as climate variability alters rainfall patterns and air temperatures during harvest, intensifying risk in many cereal-producing regions. The untimely germination of the grain, PHS, is caused by germination...

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Arbitrage opportunities in no-arbitrage portfolios: The case of Bitcoin and Treasury Bills

Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Wing-Keung Wong --- Asia University, Taiwan Zhenzhen Zhu --- School of Statistics and Mathematics, Shandong University of Finance and Economics, China I-Ming Jiang --- College of Management, Yuan Ze University, Taiwan Elie Bouri --- Lebanese American University, Lebanon

Employing both mean-variance portfolio optimization and stochastic dominance analysis, we examine whether including Bitcoin and 3-month US Treasury Bills could generate arbitrage opportunities and lead to better investment choices. The results show, independent of whether short sales are allowed, that:...

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A sociolinguistic inquiry into code-switching in Tshivenḓa in beerhall environments

Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Matodzi Godfrey Sikhwari --- University of Venda, South Africa

This research article explores code-switching practices in Tshivenḓa-speaking beerhall environments, focusing on the sociolinguistic factors that influence language use. Code-switching, the alternation between languages during conversations, is common in multilingual settings. Beerhalls provide a unique, informal space to observe how...

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Exploration of a sociocultural, ubuntu intervention strategy to enhance first-year students’ academic writing skills at a South African university

Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Hlaviso Motlhaka --- School of Education, University of Limpopo, South Africa Khashane S Malatji --- University of Mpumalanga, South Africa

This qualitative research explores how to enhance the academic writing skills of first-year students at a South African university using a sociocultural intervention based on the ubuntu philosophy. It collects data through interviews, focus groups, and reflective diaries from students...

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Isihloko: “Yintoni esegameni?” Uhlalutyo lwamagama athiywe abalinganiswa abangamanina kwiincwadi ezikhethiweyo zesiXhosa

Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Nompumelelo Kapa --- University of Fort Hare Alice, South Africa Lukhanyo Elvis Makhenyane --- University of Johannesburg, South Africa

Ukuthiywa igama kwabalinganiswa kuncwadi yinxalenye yokubunjwa kwabalinganiswa. Igama umbhali alithiyayo liba yinxalenye yengqiqo yombhali noko anqwenela ukudlulisa ngencwadi ayibhalileyo, kuba amagama anentsingiselo enzulu yaye abhekiselele kwimiba ebalulekileyo. Amagama abantu kumaXhosa akhelwa kumnombo weziduko, kubuKrestu, amava osapho umntwana azalelwe kulo, okulindelwe...

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General decay results for a nonlinear Viscoelastic Timoshenko system

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ibtissam Fekrache --- Higher Normal School of Technological Education (ENSET), Algeria Djalal Boucenna --- Higher Normal School of Technological Education (ENSET), Algeria Amar Chidouh --- Chadli Bendjedid University, Algeria Djamel Ouchenane --- Amar teledji University Laghouat, Algeria Salah Boulaaras --- College of Sciences, Qassim University, Saudi Arabia Rashid Jan --- College of Sciences, Qassim University, Saudi Arabia

In this paper, we focus on the Timoshenko viscoelastic system associated with a nonlinear term. The general stability is established by means of the energy method under the assumption of equal speeds, leading to an energy decay rate that includes...

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The role of STI governance in increasing the efficiency of the University of Tehran Science and Technology Park with an emphasis on its internationalization

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Bahareh Heidary --- Governance Faculty, University of Tehran, Tehran, Iran, Maryam Afkhami --- Governance Faculty, University of Tehran, Tehran, Iran,

The governance of science, technology, and innovation (STI) is increasingly recognized as a key driver for international collaboration and competitiveness. To ensure effective STI governance, it is essential to understand internationalization parameters, their impact, and the strategic frameworks that enable...

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Ubuciko bokwethiwa kwamagama abalingiswa emanovelini abhalwa ngemuva konyaka wezi-2000: kubhekwa ukwethiwa kwabalingiswa ukuthi kuyafana nokwetha jikelele

Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Lindani Sthembele Maphumulo --- University of Western Cape, South Africa Mzamo Hlengwa --- University of Free State, South Africa

Ngokwevamile igama liqukathe izinto ezithile ezihambisana nokwethiwa kwalo (Lubisi, 2002; De Klerk and Bosch, 1995: 69). Igama liqukethe ubuntu kanye nobunjalo bakhe lowo owethiwe lelo gama kepha ezinye izinhlanga zilibuka njengelebuli esetshenziswa ukwetha ukuze izinto zikwazi ukuhlukaniseka. Isifundo sokwethiwa kwamagama...

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Sustainable intensification in rangelands of the southernmost region of Chile

Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Raúl J Lira Fernandez --- Instituto de Investigaciones Agropecuarias, Centro Regional de Investigación Kampenaike, Chile Andres F Cibils --- Livestock, Forage and Pasture Management Research Unit, USDA ARS OCPARC, USA

Rangeland-based sheep ranching has shaped the agricultural economy of Chile’s southernmost grasslands for over a century and a half. Ranching systems in the region, established in the late 1800s, transitioned from large European corporate enterprises, common until the mid-20th century,...

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Residency, site affinity and coastal movements of the southern African endemic spotted gully shark Triakis megalopterus

Item type: Journal Article • Journal: African Journal of Marine Science • Authors: E Cottrant --- South African Shark Conservancy, South Africa JH Morrison --- South African Shark Conservancy, South Africa C Elston --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa TS Murray --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa NJ Drobniewska --- South African Shark Conservancy, South Africa LG Underhill --- Department of Biological Sciences, University of Cape Town, South Africa N Hammerschlag --- Rosenstiel School of Marine, Atmospheric, and Earth Science, University of Miami, United States PS Albano --- Rosenstiel School of Marine, Atmospheric, and Earth Science, University of Miami, United States ME McCord --- South African Shark Conservancy, South Africa PD Cowley --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa C Fallows --- Apex Shark Expeditions, South Africa TG Paulet --- South African Shark Conservancy, South Africa

Rising global concern regarding the conservation and management of shark species makes it essential to identify key ecological species to guide conservation efforts, especially species with more restricted distributions such as endemic species. The southern African endemic spotted gully shark...

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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, Ghana

Entrepreneurial 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...

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Exploring the effects of historical legacies and patronage politics on human resource management in Ghana’s local government

Item type: Journal Article • Journal: Africa Journal of Management • Authors: Mohammed Ibrahim --- Global Development Institute, The University of Manchester, UK Farhad Hossain --- Global Development Institute, The University of Manchester, UK

This paper examines human resource management (HRM) practices in Ghana's local government and advances a twofold argument. First, it shows that decentralization reforms introduced in the 1980s and 1990s locked the system into a path-dependent governance trajectory. This has narrowed...

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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 Africa

Historic 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,...

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Barriers and facilitators influencing the use of HIV self-testing amongst adolescent girls and young women in South Africa

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mimi Eve Teffo --- School of Built Environment and Development Studies, University of KwaZulu-Natal, South Africa Mbongeleni Thembalihle Mgwaba --- School of Built Environment and Development Studies, University of KwaZulu-Natal, South Africa

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Hidden no more: A fifteen-year epidemiological assessment of HIV/AIDS in Libya and the urgent need for national action

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Hamza Saad --- University of Central Missouri, United States of America

Background: In Libya, the HIV/AIDS epidemic has worsened over the past 10 years because of political instability, dilapidated health infrastructure, social stigma, and limited access to testing and treatment. While public health has a growing interest in addressing HIV issues,...

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Systematic scoping review on HIV services for males in Sub-Saharan Africa: Access, barriers, and research gaps

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Patience Manjengwa --- School of Health Systems and Public Health, University of Pretoria, South Africa Clarence Yah --- School of Health Systems and Public Health, University of Pretoria, South Africa Nozipho Musakwa --- Health Economics and Epidemiology Research Office, South Africa Alfred Musekiwa --- School of Health Systems and Public Health, University of Pretoria, South Africa

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HIVST in the presence of a partner among fishermen in Western Kenya: A qualitative study

Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Peter Abade --- Impact Research and Development Organization, Kenya Phoebe Olugo --- Impact Research and Development Organization, Kenya Sarah A. Gutin --- Department of Community Health Systems, School of Nursing, University of California San Francisco, USA Holly Nishimura --- Department of Medicine, Division of Prevention Sciences, University of California San Francisco, USA Jayne Lewis-Kulzer --- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, USA Marguerite Thorp --- Division of Infectious Diseases, University of California, USA Benard Ayieko --- Impact Research and Development Organization, Kenya Lennah Oluoch --- Impact Research and Development Organization, Kenya David Angawa --- Impact Research and Development Organization, Kenya Carol S. Camlin --- Department of Medicine, Division of Prevention Sciences, University of California San Francisco, USA Zachary A. Kwena --- Kenya Medical Research Institute, Kenya

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Hybrid k-means–kNN approach for predicting student performance based on library usage behaviours: A case study in Tanzanian higher education

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Hussein Bakiri --- The Institute of Finance Management (IFM), Tanzania Rose Tinabo --- The Institute of Finance Management (IFM), Tanzania

The complex relationship between student participation and resource usage is frequently missed by traditional predictors of academic performance, such as past academic records and demographic data. These predictors have limited insight into real-time learning behaviours and often act as lagging...

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Industry 4.0 application framework for sustainable reverse logistics: A systematic literature review

Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Reji John --- Galgotias University, India Mujibur Rahman --- Galgotias University, India

The significance of sustainability necessitates organizations to implement technological solutions in their business practices. Integrating Industry 4.0 with current business practices enables the organization to enhance forward logistics sustainability. However, its integration is complex and unpredictable in reverse logistics due...

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On asymptotically almost periodic mild solutions of chemotaxis-fluid systems on bounded domains

Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Dam Thi Ngoc Van --- Division of Mathematics, Banking Academy of Vietnam, Vietnam Tran Minh Nguyet --- Department of Mathematics, Thang Long University, Vietnam Pham Truong Xuan --- Thang Long University, Vietnam

We study the well-posedness and exponential stability of almost periodic (AP-) and asymptotically almost periodic (AAP-) mild solutions for the chemotaxis-Navier-Stokes systems on a bounded domain Ω ⊂ ℝd (d ⩾ 2) with the smooth boundary. Our strategy is: we...

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