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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 AfricaAn 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. -
The Use of Roots to Test N, P and K Deficiencies in Eucalyptus Nutrition
Item type: Journal Article • Journal: South African Forestry Journal • Authors: John Dighton --- , HelenE. Jones --- ,Bioassays have been developed which can provide diagnostics of the nutritional status of trees. They measure the flux of N, P or Rb for K into roots from standard solutions where the rate of influx is inversely related to nutrient... -
Veld burning in giant's castle game reserve, natal Drakensberg
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: M.T. Mentis --- , M.J. Meiklejohn --- , J.S.B. Scotcher --- ,A basic aim in the management of a wildlife reserve is to maintain ecological diversity. In the Giant's Castle Game Reserve the vegetation is largely composed of fire sub‐climax grasslands. Under the natural fire‐regime, before man influenced the system much,... -
Forty‐five years ago and forty‐five onward
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: John Phillips --- Hon. Senior Research Fellow: Applied Ecology, -
Soil-water conservation as affected by primary tillage practices
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W. A.J. Berry --- Summer Grain Sub-Centre, J.B. Mallett --- Summer Grain Sub-Centre, M.A. Johnston --- ,An investigation of water conservation as affected by different primary tillage methods was conducted on a soil of the Doveton series (fine-loamy, mixed, thermic family of Rhodic Paleudults), where a direct sampling technique was used to monitor the soil-water profiles... -
Soil-water conservation as affected by primary tillage practices
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W. A.J. Berry --- Summer Grain Sub-Centre, J.B. Mallett --- Summer Grain Sub-Centre, M.A. Johnston --- ,An investigation of water conservation as affected by different primary tillage methods was conducted on a soil of the Doveton series (fine-loamy, mixed, thermic family of Rhodic Paleudults), where a direct sampling technique was used to monitor the soil-water profiles... -
Physical and clay mineralogical properties of some Natal and eastern Transvaal soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A. Cass --- , Australia M.A. Johnston --- Department of Agriculture and Water Supply,Soils, collected from the south-eastern Transvaal, Natal north coast and the more arid areas of the Natal interior, were examined using physical, chemical and mineralogical methods. Most of the soils were associated with particular management problems such as poor internal... -
Haploids in barley breeding
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: GailM. Littlejohn --- Department of Genetics, Republic of South Africa R. de V. Pienaar --- Department of Genetics, Republic of South AfricaHaploids are organisms which possess the gametic chromosome number in their somatic tissues. They may arise spontaneously or be induced in a number of ways. Since 1970 haploids have been used as a method of producing pure lines in barley... -
A vacuum filtration and leaching method for the colorimetric determination of ammonium and nitrate nitrogen in soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A. D.P. Botha --- , Republic of South Africa J.C. Johnson --- , Republic of South AfricaThe extracting solution and soil were separated by using vacuum filtration, followed by continuous leaching. The procedure was evaluated by spiking five different topsoil samples (having a wide range of physical and chemical properties) with ammonium nitrate and determining the... -
Quantities of phosphorus fertilizer required to raise the soil test value
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.A. Johnston --- Department of Agronomy, Republic of South Africa N. Miles --- , Republic of South Africa G.R. Thibaud --- Summer Grain Sub-Centre, Republic of South AfricaTo calculate nutrient requirement it is necessary to know how much of that nutrient must be applied to overcome any buffering effects and raise the test value to a desired level. A glasshouse study was conducted on a wide range... -
The effectiveness of Langebaan rock phosphate and superphosphate in two acid, phosphate-deficient soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.R. Thibaud --- Summer Grain Sub-Centre, Republic of South Africa M. P.W. Farina --- Summer Grain Sub-Centre, Republic of South Africa J.C. Hughes --- Summer Grain Sub-Centre, Republic of South Africa M.A. Johnston --- Summer Grain Sub-Centre, Republic of South AfricaAcid, P-deficient soils with a large capacity to immobilize P favour the rapid decomposition of apatite. Such soils are widespread in the east of South Africa and the possibility exists that Langebaan rock phosphate (Langfos) may be a more cost-effective... -
Utilization of initially-applied labelled ammonium nitrate by three successive crops
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A. D.P. Botha --- , Republic of South Africa D.C. Pretorius --- , Republic of South Africa J.C. Johnson --- , Republic of South Africa M.V. Kidson --- , Republic of South AfricaThe aim of the study was to compare N uptake from initially-applied NH4 + and NO3- ions and to compile a balance sheet for applied fertilizer N. In a pot experiment, maize, sorghum and sunflower plants were grown in succession,... -
Maize response to Langebaan rock phosphate—superphosphate mixtures under glasshouse conditions
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.R. Thibaud --- Summer Grain Sub-Centre, Republic of South Africa M. P.W. Farina --- Summer Grain Sub-Centre, Republic of South Africa J.C. Hughes --- Department of Agronomy, Republic of South Africa M.A. Johnston --- Department of Agronomy, Republic of South AfricaA previous investigation showed that Langebaan rock phosphate (Langfos) was not an effective substitute for superphosphate. However, in the light of reports that P availability is enhanced when phosphate rock (PR) and monocalcium phosphate are combined, an improvement in Langfos... -
Assessment of phosphorus availability in soils fertilized with Langebaan rock phosphate or superphosphate
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.R. Thibaud --- , Republic of South Africa M. P.W. Farina --- , Republic of South Africa J.C. Hughes --- Department of Agronomy, Republic of South Africa M.A. Johnston --- Department of Agronomy, Republic of South AfricaProblems currently exist in the interpretation of soil test values for soils fertilized with rock phosphate. This study was undertaken to compare the ability of four extradants (Ambic, Bray 1, Mehlich 3 and modified Truog) to assess plant available phosphorus... -
Phosphorus sorption in Natal soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S.H. Bainbridge --- Department of Agriculture, Republic of South Africa N. Miles --- Department of Agriculture, Republic of South Africa R. Praan --- Department of Agriculture, Republic of South Africa M.A. Johnston --- Department of Agronomy, Republic of South AfricaPhosphorus (P) sorption poses a severe constraint on the ability of many soils to supply adequate amounts of P to plants. In an effort to quantify the P sorption capacities of soils in Natal, P sorption isotherms of 50 topsoils... -
Calibration models for interpretation of soil salinity measurements using an electromagnetic induction technique
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.A. Johnston --- Department of Agronomy, Republic of South Africa M.J. Savage --- Department of Agronomy, Republic of South Africa J.H. Moolman --- Department of Soil and Agricultural Water Science, Republic of South Africa H.M. du Plessis --- , Republic of South AfricaA commercially available salinity sensor (model EM-38 of Geonics Ltd., Canada) has been developed for diagnosing and quantifying soil salinity in the field. There is a need, however, to calibrate the instrument reading against a more commonly used measure of... -
The effect of soil compaction on the water retention characteristics of soils in forest plantations
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: CW Smith --- , MA Johnston --- , SA Lorentz --- ,A study was carried out to evaluate the relative effects of soil compaction on the water retention characteristics of a range of soils in forest plantations in the summer rainfall regions of South Africa. In all cases compaction resulted in... -
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, USAIrrigation 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... -
Development of a doubled haploid mapping population and linkage map for the bread wheat cross Kariega × Avocet S
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: R. Prins --- , South Africa V.P. Ramburan --- , South Africa Z.A. Pretorius --- Department of Plant Sciences, South Africa L.A. Boyd --- Department of Disease and Stress Biology, John Innes Centre, UK W. H.P. Boshoff --- , South Africa P.H. Smith --- Department of Disease and Stress Biology, John Innes Centre, UK J.H. Louw --- Department of Genetics, South AfricaA doubled haploid wheat population of 150 lines was constructed from the F1 of a cross between cultivars Kariega and Avocet S using the wheat-maize technique. Segregation and linkage analysis of 203 DNA markers, two storage protein markers and the... -
Effect of timing and concentration of rest breaking agents on budburst in ‘Bing’ sweet cherry under conditions of inadequate winter chilling in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.G. Sheard --- Department of Horticultural Science, South Africa S.D. Johnson --- , South Africa N.C. Cook --- , South AfricaThe effect of timing of various rest breaking agents (RBAs) on vegetative and floral budburst, and production efficiency was investigated on 4-year-old ‘Bing’ sweet cherry trees on ‘Gisela® 5’ rootstock. Two experiments were conducted, near Clarens (28°28’S; 28°19’E, 1860 m.a.s.l)... -
Effects of soil surface management practices on soil and tree parameters in a ‘Cripps Pink’/M7 apple orchard 1. Mineral nutrition
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: John Wooldridge --- Soil and Water Science, South Africa Johan Fourie --- Soil and Water Science, South Africa Marlise E Joubert --- Soil and Water Science, South AfricaEffects on soil, leaf and fruit element concentrations of organic (compost, straw mulch and hand weeding) and integrated (inorganic fertilisers and herbicide usage; IP) soil surface management practices in the tree rows, in combination with weed covers, cover crops and... -
Effects of soil surface management practices on soil and tree parameters in a ‘Cripps Pink’/M7 apple orchard 2. Tree performance and root distribution
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: John Wooldridge --- Soil and Water Science, South Africa Johan Fourie --- Soil and Water Science, South Africa Marlise E Joubert --- Soil and Water Science, South AfricaEffects of integrated production (IP) and organic-acceptable soil surface management practices were investigated in a ‘Cripps Pink’/M7 apple orchard in the Elgin area, South Africa. Work row treatments included cover crops, weeds and straw mulch. In the IP tree rows,... -
Soils of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: John PC Tolmay --- Yield Enhancing Systems, Kynoch Fertiliser, South Africa -
Monitoring of harmful algal blooms along the Norwegian Coast using bio-optical methods
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: G. Johnsen E. SakshaugA Norwegian monitoring system for harmful algal blooms, consisting of an Observer Network, the State Food Hygiene Control Agency, the Oceanographic Company of Norway, the Institute of Marine Research and the Directorate for Fisheries, is reviewed. Potentially harmful algae on... -
Fish response to the annual flooding regime in the Kavango River along the Angola/Namibian border
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: C. H. Hocutt P. N. JohnsonThe results of the first seasonal survey of the fish of the Kavango River flood-plain along the Angola/Namibia border are reported. The river experiences peak flooding from February through June, with the 375-km long floodplain extending up to 5 km... -
Dynamics of the pelagic component of Namibian hake stocks
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: T. Iilende T. Strømme E. JohnsenA study was undertaken to investigate the spatial, diurnal and interannual dynamics of the pelagic component of Namibian hake stocks. Data were derived from trawl surveys conducted on board the R.V. Dr Fridtjof Nansen during the period 1991–1999. In addition... -
Recommendations for the management of subsistence fisheries in South Africa
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. M. Harris G. M. Branch B. M. Clark A. C. Cockcroft C. Coetzee A. H. Dye M. Hauck A. Johnson L. Kati-Kati Z. Maseko K. Salo W. H. H. Sauer N. Siqwana-Ndulo M. SowmanThis paper summarizes recommendations for the management of previously marginalized and neglected subsistence fisheries in South Africa. The recommendations stem from the activities and analyses of a task group appointed by Government and mandated to provide advice about management of... -
The process of developing a management system for subsistence fisheries in South Africa: recognizing and formalizing a marginalized fishing sector in South Africa
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. M. Harris M. Sowman G. M. Branch B. M. Clark A. C. Cockcroft C. Coetzee A. H. Dye M. Hauck A. Johnston L. Kati-Kati Z. Maseko K. Salo W. H. H. Sauer N. Siqwana-Ndulo J. BeaumontSubsistence fishers were first recognized as a formal fishing sector in South Africa when new fishing legislation, aimed at redressing past inequalities, was enacted in 1998. Little information was available about these fishers, their activities, and the resources upon which... -
Southward extension of the reproductive range of Macroramphosus scolopax in the upwelling area off North-West Africa
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: S. Ehrich H.-Ch. John P. Westhaus-EkauIchthyological literature gives the distribution of M. scolopax as along the whole coast of West Africa. However, analysis of this literature and the results of trawling surveys in the North-East Atlantic suggest only exceptional occurrences in the tropics. Plankton surveys... -
Postflexion and transforming larvae of Gonorynchus gonorynchus (Linnaeus, 1766)
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: M.-P. Olivar H.-Ch. JohnPostflexion larvae of Gonorynchus gonorynchus, previously undocumented, are described from the South-East Atlantic. Comparisons with descriptions of larval G. abbreviatus and larvae of another, still unidentified, species of Gonorynchus suggest slight to conspicuous differences in pigmentation between species. -
Identification of and distinction between the scales of South African pilchard Sardinops ocellatus and Cape anchovy Engraulis capensis
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: L. Y. Shackleton R. F. JohnsonFossil fish scales hold potential for elucidating past fluctuations in fish populations. Only certain pilchard Sardinops ocellatus and anchovy Engraulis capensis scales can be distinguished easily from each other. Misidentification of the less-typical scales of the two species can introduce... -
A size-structured model for renewable resource management, with application to resources of rock lobster in the South-East Atlantic
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: M. O. Bergh S. J. JohnstonIt is currently not possible to determine the age of individuals of the South-East Atlantic spiny lobsters Jasus lalandii and J. tristani. Use of classical age-structured techniques for investigating population dynamics and resource exploitation potential cannot therefore be considered. Elsewhere,... -
The vertical distribution of eggs of Maurolicus muelleri
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: H-Ch. John M. KloppmannThe vertical distribution of eggs of the sternoptychid Maurolicus muelleri from different localities worldwide was analysed on the basis of apparently conflicting literature and new data. Although the vertical distribution has been classified as "variable", most data from hydrographically comparable... -
Ekman estimates of upwelling at Cape Columbine based on measurements of longshore wind from a 35-year time-series
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: A. S. Johnson G. NelsonCape Columbine is a prominent headland on the south-west coast of Africa at approximately 32°50′S, where there is a substantial upwelling tongue, enhancing the ambient upwelling on the shelf, produced by wind-stress curl. From hourly records of wind measured there,... -
Rawls’s Principle of Justice as Fairness and Its Application to the Issue of Same-Sex Marriage
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Scott Gray --- Philosophy Southeastern Illinois College 3575 College Road, United States of AmericaThis essay applies the principle of justice as fairness to the issue of same-sex marriage. I will outline Rawls’s theory of justice, including the original position and the veil of ignorance as the means by which choosers craft a just... -
Is Theism a Simple, and hence Probable, Explanation for the Universe?
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Ostrowick --- Philosophy Department, University of Cape Town,Richard Swinburne, in his The Existence of God (2004), presents a cosmological argument in defence of theism (Swinburne 1991: 119, 135). God, Swinburne argues, is more likely to bring about an ordered universe than other states (ibid.: 144, 299). To... -
Can Bayes' Theorem, given the evidence of this universe, be used to support theism?
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John M Ostrowick --- Philosophy Department, South AfricaGiven ht as the hypothesis of theism, hm as the hypothesis of materialism, and e as the evidence of a complex life-bearing universe, Richard Swinburne presents these arguments in The Existence of God: (1) that this ordered universe is a... -
Marxism as a science of interpretation: beyond Louis Althusser
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: M John Lamola --- Department of Philosophy, South AfricaInspired by Louis Althusser's polemic that Marxism is a science and not a philosophy, we enquire about the nature of this ‘scientificity’ of Marxism. The result is a clarification that Marxism is a social theory within the discourse of hermeneutics... -
THE INFLUENCE OF AGE ON SUMMERWOOD RATIO IN PINE TIMBER
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULL --- Division of Forestry, -
INDEX
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULL -
INHOUDSOPGAWE
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULL -
AN IMPROVISED POLE TESTING MACHINE
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULL --- , P. M. D. KROGH --- , -
CROSS—SECTION DIMENSIONAL ADJUSTMENT OF SUBSTITUTE TIMBERS
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULL -
FIBRIL BEHAVIOUR AS DISCLOSED BY SHRINKAGE OBSERVATIONS
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULL --- , -
THE RELATIONSHIP BETWEEN MODULUS OF RUPTURE AND WEIGHT IN SOUTH AFRICAN GROWN PINE TIMBER
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULL --- , -
A PRELIMINARY INVESTIGATION INTO THE CAUSES OF TORSION IN PINE STEMS
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULL -
SOME SIDELIGHTS ON THE RATE OF GROWTH BOGEY
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULL --- , C.P. DU PLESSIS --- , -
A NOTE ON THE REACTION OF WOOD IN STRENGTH TO STRESSES BEYOND THE PROPORTIONAL LIMIT
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULL --- , -
END-COATING CONTROL OF WOOD PRESERVAVATIVE PENETRATION
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: P. M. D. KROGH --- , JOHNM. TURNBULL --- , -
SOME FACTORS AFFECTING WOOD DENSITY IN PINE STEMS
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULLThis paper was presented to the Fifth British Empire Forestry Conference in London, 1947, and is reprinted here with the kind permission of the Director of Forestry. -
THE HOUW HOEK BLUE GUM
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHNM. TURNBULL -
GROWING WATTLE
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHN BEARD --- , -
KEUSE VAN TAAL
Item type: Journal Article • Journal: Journal of the South African Forestry Association • Authors: JOHN BEARD --- , -
WOLF PAPROTTE & RENE DIRVEN (EDS.), THE UBIQUITY OF METAPHOR. AMSTERDAM: JOHN BENJAMINS (1985)
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: JohnR. Taylor --- , -
Possessive genitives in English: a discourse perspective
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: JohnR. Taylor --- Language Laboratory, Republic of South Africa'n Diskoersperspektief oor possessiewe uitdrukkings (soos John's car, the president's assassination, last year's election, ensovoorts) in Engels is aangebied. Daar is geredeneer dat die genitiewe nominaal soos 'n soort topic fungeer deurdat die konstruksie se hoofnaamwoord ‘gegrondeer’ word deur die... -
A problem with synonyms (and a way to a solution)
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: JohnR. Taylor --- Language Laboratory, Republic of South AfricaDie ‘probleem’ wat in hierdie artikel ondersoek word, is die verskynsel dat woorde wat dikwels as sinonieme beskou word, nogtans verskil ten opsigte van hulle distribusie. Die fenomeen word geïllustreer deur die Engelse woorde high en tall. Korpusdata wys daarop... -
Language, thought and culture
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: JohnR. Taylor --- , -
Polisemisasiepatrone in die Engelse voorstelsels
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: JohnR. Taylor --- Language Laboratory, Republic of South AfricaVoorsetsels in Engels is van die leksikale items wat die meeste polisemiese waardes bevat. In hierdie artikel hanteer ek nie die spektrum van betekeniswaardes van 'n enkele voorsetsel nie, maar fokus op die uitbreiding van betekenis wat voorsetsels as 'n... -
Possessives and the Learnability Problem
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: JohnR. Taylor --- Language Laboratory, Rep. of South AfricaGeneraliewe taalkundiges verwys dikwels na die sogenaamde “leerbaarheids-paradoks”. Die beginsels wat deur generaliewe grammatika gepostuleer word, word veronderstel om 'n aspek van 'n moederspreker se linguistiese kennis te verteenwoordig. Tog is die beginsels so abstrak, dot daar nie na regie... -
The development of phonological awareness in children at an English-medium school: a cross-sectional study
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: Kate Cockcroft --- Department of Psychology, South Africa Yvonne Broom --- Department of Psychology, South Africa Kirston Greenop --- Department of Psychology, South Africa Peter Fridjohn --- Department of Statistics and Actuarial Science, South Africa -
THE DIURNAL MIXED LAYER IN LAKES AND OCEANS
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: JohnL. Largier --- Division of Earth, Marine and Atmospheric Science and Technology, South AfricaIn this review the current ideas on diurnal mixed layers are discussed with reference to several observations. Essentially, solar heating sets up a shallow thermocline which traps and concentrates further influx of heat and momentum in the top few metres... -
Assignment writing in mainstream courses: getting a better product
Item type: Journal Article • Journal: Southern African Journal of Applied Language Studies • Authors: John Boughey --- Academic Development Centre,Principally, University lecturers try to assist students with their writing in two ways: telling them beforehand how a particular piece of writing should look, and, afterwards, giving written feedback. Unfortunately, neither of these practices has significant effects. We know from... -
Maasai Mara — an ecosystem under siege: an African case study on the societal dimension of rangeland conservation
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: John Waithaka'Let me assure you all that our commitment to the preservation of wildlife and the habitat in the Maasai Mara reserve is total. We do not deny that the reserve is of vital economic importance to us, but we also... -
Scale, heterogeneity and secondary production in tropical rangelands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Andrew Ash John Gross Mark Stafford SmithTropical rangelands across the world are experiencing land use intensification pressures which are reducing the spatial scale of grazing management units. There are implications of a reduction in scale on environmental heterogeneity and its relationship with secondary production of large... -
Use and availability of tree and shrub resources on Maasai communal rangelands near Amboseli, Kenya
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: John Warui Kiringe Moses Makonjio OkelloUse of plant resources is critical in understanding resource dependence among poor rural communities. This study investigated use of tree and shrub resources by a local Maasai community, through discussions and a questionnaire. Twenty-four tree and shrub species were utilised... -
In vitro organic matter disappearance of tanniferous browse using rumen liquid from goats ingesting grass versus browse
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Caroline C Wambui --- Egerton University, Kenya James P Muir --- Texas A&M AgriLife Research, USA John Githiori --- International Livestock Research Institute, Kenya Barry D Lambert --- Texas A&M AgriLife Research, USAIn vitro organic matter disappearance (IVOMD) of African browse species often indicates artificially low nutritive value due to the presence of condensed tannins (CT). Diet of the rumen liquor donor may change this if it contains CT. Leaves from 11... -
Plantation Forestry in South Africa and its Impact on Biodiversity
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: A.J. Armstrong --- , South Africa G. Benn --- , South Africa A.E. Bowland --- , South Africa P.S. Goodman --- , South Africa D.N. Johnson --- , South Africa A.H. Maddock --- , South Africa C.R. Scott-Shaw --- , South AfricaEmpirical studies and other evidence indicate that tree farming has had a marked impact on biodiversity in some areas of South Africa, Plant and animal species have been made extinct or are threatened by afforestation, and afforestation is largely responsible... -
Community Psychology in Zimbabwe: Past, Present and Future
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Regis Chireshe --- Masvingo State University, Zimbabwe Joseph M. Kasayira --- Midlands State University, Zimbabwe Pilot Mudhovozi --- Masvingo State University, Zimbabwe John Mapfumo --- Africa University, Zimbabwe Calvin Gwandure --- University of the Witwatersrand, South AfricaThe study describes and evaluates community psychology in Zimbabwe. We distinguish between a professional with the title ‘community psychologist’ and the practice of the field of community psychology in Zimbabwe. Community psychology services in Zimbabwe include the provision of education... -
The Role of Schools in Building the Resilience of Youth Faced with Adversity
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Bridget Johnson --- University of Western Cape, South Africa Sandy Lazarus --- University of Western Cape, South AfricaThis study explored factors related to risk, resilience and health amongst South African teenagers. Grade nine students (N = 472; males = 210, females = 262, age range = 12 to 18 years) at seven schools in the Western Cape... -
Lived Experiences of Informal Settlers in Peri-Urban Districts in Zimbabwe
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Excellent Chireshe --- Great Zimbabwe University, Zimbabwe Takupiwa Nyanga --- Great Zimbabwe University, Zimbabwe John S. Mapfumo --- Africa University, Zimbabwe Regis Chireshe --- University of South Africa,The study explored the lived experiences of informal settlers in two peri-urban cities of Zimbabwe (n=53, males=19, females=34; Age range 18 to 76 years). The settlers self-reported on aspects of wellbeing, including perceived neighborliness of habitats. Data were thematically analyzed... -
The Meaning of Emotion in the White Afrikaans Language Group: A Componential Emotion Theory Approach
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Cara Jonker --- North-West University, Potchefstroom Campus, South Africa Althea van der Merwe --- North-West University, Potchefstroom Campus, South Africa Johnny Fontaine --- Gent University, Belgium Deon Meiring --- University of Pretoria, South AfricaThis study determined the meaning of emotion in a sample of white Afrikaans-speaking adults (n=120; males =32, females=88, age range =18–48+ years). Data were collected using the Meaning Grid (Scherer, 2005). The analysis examined the factor loadings of emotion words... -
Exploring the Factor Structure of the Proactive Coping Inventory: A Southern African Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Michelle Renard --- Nelson Mandela Metropolitan University, Robin John Snelgar --- Nelson Mandela Metropolitan University,This study explored the factor structure of the Proactive Coping Inventory (PCI) to determine whether its six-factor structure holds within the Southern African context. Data on proactive coping were collected from students attending three universities, one each in Botswana (n=88,... -
On the convergence in mean of martingale difference sequenceS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Paul Abraham John Alexopoulos S.J. DilworthIn [6] Freniche proved that any weakly null martingale difference sequence in L 1 [0, 1] has arithmetic means that converge in norm to 0. We show any weakly null martingale difference sequence in an Orlicz space whose N-function belongs... -
Some Criteria For Determining When A Walsh Series is a Walsh-Fourier Series
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: John Alexopoulos EmilyH. SpragueWe show that a general Walsh series is the Walsh-Fourier series of a function fεLp [0, 1] for 1 ≤ p < ∞ if and only if its sequence of partial sums contains a relatively weakly compact subsequence. Several other... -
Quasi-orthogonality and zeros of some 3 F 2 hypergeometric polynomials
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: K.A. Driver S.J. JohnstonThe location of the zeros of general hypergeometric polynomials are linked with those of the classical orthogonal polynomials in some cases, notably 2 F 1 and 1 F 1 hypergeometric polynomials which have been extensively studied. In the case of... -
Asymptotic zero distribution of a class of hypergeometric polynomials
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: K.A. Driver S.J. JohnstonWe prove that the zeros of 2 F 1 (−n, n+1/2; n+3/2; z asymptotically approach the section of the lemniscate {z : |z(1 − z)2&verbar = 4/27; Re(z) > 1/3} as n → ∞. In recent papers (cf. [8], [10]),... -
Upper total domination versus upper paired-domination
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Paul Dorbec MichaelA. Henning John McCoyLet G be a graph with no isolated vertices. A set S of vertices in G is a total dominating set of G if every vertex of G is adjacent to some vertex in S, while a paired-dominating set of... -
SOME PROPERTIES OF CONNECTING MAPS FOR SUGAWARA TYPE FIBRATIONS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: JohnW. Rutter --- Department of Pure Mathematics, England -
COMPONENT SUBCATEGORIES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: JohnA. Tiller --- Department of Mathematics, CanadaThe aim of this paper is to study the properties of component subcategories and related constructions. Component subcategories of the category of topological spaces have been defined by Herrlich and Strecker ([6]. [7], and [17]). In this paper a categorical... -
THE KRALL POLYNOMIALS: A NEW CLASS OF ORTHOGONAL POLYNOMIALS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: LanceL. Littiejohn --- Department of Mathematics,A new set of orthogonal polynomials is found that are solutions to a sixth order formally self adjoint differential equation. These polynomials are shown to generalize the Legendre and Legendre type polynomials. We also show that these polynomials satisfy many... -
AN APPLICATION OF A NEW THEOREM ON ORTHOGONAL POLYNOMIALS AND DIFFERENTIAL EQUATIONS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: LanceL. Littlejohn --- Department of Mathematics, USARecently this author proved that if an OPS satisfies a differential equation of the form -
ESSENTIALLY FINITELY INDECOMPOSABLE ABELIAN p-GROUPS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Doyle Cutler --- Department of Mathematics, United States of America John Irwin --- Department of Mathematics, United States of AmericaAn abelian p-group C is said to be essentially finitely indecomposable (efi) if given any decomposition of G as the direct sum of a family of subgroups, there exists a positive integer n such that all but at moat a... -
HOMOTOPY CLASSIFICATION OF MAPS BETWEEN PSEUDO-PROJECTIVE PLANES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: JohnW. Rutter --- Department of Pure Mathematics, EnglandThe pseudo-projective plane M(q) is obtained by attaching a two cell to a circle by a map of degree q. We here determine the homotopy classes (M(q), M(w)) and some of their properties in the unbased, based and cellular-preserving cases... -
HOMOTOPY SELF-EQUIVALENCE GROUPS OF UNIONS OF SPACES: INCLUDING MOORE-SPACES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: JOHNW. RUTIER --- Department of Pure Mathematics, EnglandThe group ϵ(Mm(A) v Mn(π)) of homotopy self-equivalence classes of two Moore spaces is faithfully represented onto a (multiplicative) group of matrices for n≥m≥3. We consider, in this note, related representations of ϵ(Mm(Λ)vMn(π)), for finitely generated Λ and π in... -
SOME RESULTS ON BUDS, STEMS AND FAULT TOLERANCE IN HYPERCUBES OF DIMENSION ⋚ 5
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Karen Anne Johnson --- , U.S.A.We determine the minimum number of faulty links in a 5-dimensional hypercube so that no 2-dimensional subcube is fault free. The degree sequences of some related extremal graphs are also determined. -
ON SOME PROPERTIES OF THE LEGENDRE TYPE DIFFERENTIAL EXPRESSION
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: W.N. Everitt --- Department of Mathematics, England A.M. Krall --- Department of Mathematics, U.S.A. L.L. Littlejohn --- Department of Mathematics, U.S.A.The fourth-order Legendre type differential expression Mk is studied in the spaces L2(-1,1) and L2 μ[-1,1], where μ is the orthogonalizing weight for the Legendre type polynomials. In L2(-1,1), Mk is found to be limit-8 at both endpoints. Consequently, limiting... -
PASCALIAN RECTANGLES MODULO m
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Karen Anne Johnson --- Department of Mathematics, USA Richard Grassl --- Department of Mathematics, Joseph McCanna --- Department of Mathematics and Statistics, USA L.A. Székely --- Department of Comp Sci, HUNGARYWe develop a recursive technique for optimizing the sums and as a by-product produce two new proofs of the Ramus formula -
THE LEGENDRE TYPE OPERATOR IN A LEFT DEFINITE HILBERT SPACE
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: AllanM. Krall --- Department of Mathematics, USA W.N. Everitt --- Department of Mathematics, England L.L. Littlejohn --- Department OF MATHEMATICS,The techniques for discussing linear differential operators in left definite spaces, developed earlier for regular fourth order and singular second order operators, are applied the Legendre type operator. It is shown that the operator, with its domain merely restricted to... -
MAXIMUM INDEPENDENT, MINIMALLY REDUNDANT SETS IN SERIES-PARALLEL GRAPHS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: T.W. Johnson --- Department of Mathematical Sciences, P.J. Slater --- Department of Mathematical Sciences,We introduce a new type of graph-theoretic parameter, namely, “single set, prioritized multi-property” parameters. The example described here uses independence as the priority property and redundance as the secondary property, and we consider the problem of minimizing (total) redundance for... -
THE LEGENDRE POLYNOMIALS UNDER A LEFT DEFINITE ENERGY NORM
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: AllanM. Krall --- McAllister Building, LanceL. Littlejohn --- Department of Mathematics,The Legendre operator ly = -((1—x 2)y′)′ + ¼y, under boundary constraints lim x→±1 (1—x 2)y′(x) = 0 is shown to be self-adjoint in a space with inner product -
TORSION PRERADICALS—A TOOL FOR ANALYSING RINGS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: JohnE. van den Berg --- , South AfricaThis paper surveys a selection of results in the literature on torsion preradicals; these are left exact preradical functors on the category of unital right modules over an associative ring with identity. Various well known classes of rings such as... -
RECENT DEVELOPMENTS AND APPLICATIONS OF ABSTRACT ANALYTIC NUMBER THEORY
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: John Knopfmacher --- Centre for Applicable Analysis and Number Theory, South AfricaThe aim of this survey is to outline some basic concepts and results of “abstract” analytic number theory, with an emphasis on applications to concrete systems arising in a variety of mathematical fields. Some remarks on more recent investigations are... -
Quasi-nearnesses on biframes and their completions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: John Frith --- Department of Mathematics and Applied Mathematics, South Africa Anneliese Schauerte --- Department of Mathematics and Applied Mathematics, South AfricaWe introduce quasi-nearness biframes. They provide a generalization of both nearness frames [5] and quasi-uniform biframes [12]. Quasi-nearness biframes are regular; they are normal if and only if the standard binary quasi-nearness is in fact a quasi-uniformity. Further, we introduce... -
Inversions in compositions of integers
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: S. Heubach* --- Department of Mathematics, A. Knopfmacher* --- The John Knopfmacher Center for Applicable Analysis and Number Theory, South Africa M.E. Mays* --- , USA A. Munagi* --- The John Knopfmacher Center for Applicable Analysis and Number Theory, South AfricaA composition of the positive integer n is a representation of n as an ordered sum of positive integers n = a1 + a2 + … + am. It is well known that there are 2 n −1 compositions... -
Variational approaches to conservation laws for a nonlinear evolution equation with time dependent coefficients
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A.G. Johnpillai --- Department of Mathematics, Sri Lanka C.M. Khalique --- International Institute for Symmetry Analysis and Mathematical Modelling, Department of Mathematical Sciences, South AfricaThe conservation laws of a nonlinear evolution equation of time dependent variable coefficients of damping and dispersion is studied. The equation under consideration is not derivable from a variational principle which means that one cannot appeal to the Noether theorem... -
Self-adjoint fourth order differential operators with eigenvalue parameter dependent boundary conditions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Manfred Möller --- The John Knopfmacher Centre for Applicable Analysis and Number Theory, South Africa Bertin Zlnsou --- The John Knopfmacher Centre for Applicable Analysis and Number Theory, South AfricaWe consider the eigenvalue problem y (4)(λ,x) − (gy′)′(λ,x) = λ 2 y(λ,x) with separated boundary conditions B j (λ)y = 0 for j = 1,…,4, where g ∈ C 1[0, a] is a real valued function, B... -
Quasi-nearness biframes: unique completions and related covering properties
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: John Frith --- Department of Mathematics and Applied Mathematics, South Africa Anneliese Schauerte --- Department of Mathematics and Applied Mathematics, South AfricaQuasi-completeness was considered in [16], where a quasi-completion was constructed for any quasi-nearness biframe. In this paper, we compare the familiar notions of compactness and total boundedness with quasi-completeness. We investigate the uniqueness of quasi-completions, using the full and balanced... -
Asymmetric filter convergence and completeness
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: John Frith --- Department of Mathematics and Applied Mathematics, South Africa Anneliese Schauerte --- Department of Mathematics and Applied Mathematics, South AfricaCompleteness for metric spaces is traditionally presented in terms of convergence of Cauchy sequences, and for uniform spaces in terms of Cauchy filters. Somewhat more abstractly, a uniform space is complete if and only if it is closed in every... -
Phonological awareness and learning to read in Afrikaans
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Kate Cockroft Yvonne Broom Kirston Greenop Peter FridjohnIn this study, the issue of whether phonological awareness is a precursor to learning to read in Afrikaans or a consequence of literacy was explored. It appears that, for children learning to read in Afrikaans, certain aspects of phonological awareness... -
The Language for Learning project: Developing language-sensitive subject-teaching in South African secondary schools
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Beverley Burkett John Clegg John Landon Tony Reilly Cheron VersterThe Language for Learning project is an initiative in the Eastern Cape and KwaZulu-Natal which aims to help secondary school subject teachers to take account of language and learning. It operates in schools with varied patterns of intake and in... -
Using an undertaker's data to assess changing patterns of mortality and their consequences in Swaziland
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Christopher Desmond John King Jane Tomlinson Conway Sithungo Nina Veenstra Alan WhitesideThis paper measures AIDS mortality using routinely collected data from one of two nationally operating undertakers in Swaziland. The business recorded a marked increase in the number of deaths it handled between 1998 and 2002, most obvious in the 0–4... -
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 MubangiziAn 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... -
Psychosocial disadvantage: preparation, grieving, remembrance and recovery for orphans in eastern Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Brian Howard Nelia Matinhure SherylA McCurdy Cary Alan JohnsonFew programmes for sub-Saharan Africa's 12.3 million children orphaned by AIDS have focused on their high risk for psychosocial problems. As groundwork for supporting orphans' healthy development, this study describes the preparation, grief, and memorial experiences and the physical and... -
Talking about sex in Botswana: social desirability bias and possible implications for HIV-prevention research
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kata Chillag Greg Guest Arwen Bunce Laura Johnson PeterH Kilmarx DawnK SmithEvaluations of the safety, effectiveness, and feasibility of HIV prevention interventions rely on self-reported sexual behaviour data. The accuracy of such data has sometimes been questioned. The absence of a so-called objective measure of sexual behaviour complicates this. Social desirability... -
Evidence of AIDS mortality from an alternative source: A Swaziland case study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Alan Whiteside --- Health Economics and HIV/AIDS Research Division, South Africa Chris Desmond --- Health Economics and HIV/AIDS Research Division, South Africa John King --- , Swaziland Jane Tomlinson --- , Swaziland Conway Sithungo --- , SwazilandThis paper explores a way of measuring AIDS mortality in the absence of vital registration. It looks at the death notices in the major daily newspaper in Swaziland, The Times of Swaziland, and asks if these can be analysed to... -
The [in]visibility of HIV/AIDS in the Malawi public sphere
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: John Lwanda --- , ScotlandThis paper argues that, far from being invisible, issues of sexuality are omnipresent in the African public sphere. However, this presence is not usually found in the medical nor overtly gender/sexual arenas but in general social contexts. Western derived research... -
HIV/AIDS and mental health research in sub-Saharan Africa: a systematic review
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Erica Breuer --- , South Africa Landon Myer --- , South Africa Helen Struthers --- , South Africa JohnA Joska --- Department of Psychiatry and Mental Health, South AfricaThe relationship between mental illness and HIV/AIDS is complex and bidirectional. A significant amount of research has been performed in high-income countries but less is known about HIV and mental health in sub-Saharan Africa. The objectives of the review were... -
Patterns of disclosure and antiretroviral treatment adherence in a South African mining workplace programme and implications for HIV prevention
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Anil Bhagwanjee --- , South Africa Kaymarlin Govender --- , South Africa Olagoke Akintola --- , South Africa Inge Petersen --- , South Africa Gavin George --- , South Africa Leigh Johnstone --- , South Africa Kerisha Naidoo --- , South AfricaSocial and psychological barriers to the disclosure of one's seropositive HIV status to significant others and poor adherence to taking medications pose significant challenges to the scaling-up of access to antiretroviral treatment (ART) in the workplace. Such barriers are predictive... -
Does accessibility to antiretroviral care improve after down-referral of patients from hospitals to health centres in rural South Africa?
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mosa Moshabela --- , Helen Schneider --- , South Africa SusanM Cleary --- Health Economics Unit, South Africa PaulM Pronyk --- , John Eyles --- School of Geography and Earth Sciences, CanadaWe conducted an evaluation of healthcare accessibility among patients taking antiretroviral treatment (ART) after they were ‘down-referred’ from hospital-based programmes to primary healthcare (PHC) centres in a rural South African setting. A cross-sectional design was used to study 109 PHC... -
Factors associated with HIV infection among sexually experienced adolescents in Africa: a pooled data analysis
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Stella Babalola --- Johns Hopkins Bloomberg School of Public Health, United StatesThe article examines the factors associated with HIV status among adolescents aged 15–19 years in 13 African countries: Côte d'Ivoire, Democratic Republic of Congo, Guinea, Kenya, Liberia, Mali, Malawi, Rwanda, Sierra Leone, Swaziland, Tanzania, Zambia and Zimbabwe. The data were... -
The distribution and feeding ecology of the characid Brycinus sadleri in Lake Nabugabo, Uganda: implications for persistence with Nile perch (Lates niloticus)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JohnP Olowo LaurenJ Chapman ColinA Chapman Richard Ogutu-OhwayoCoincident with a rapid increase in numbers of introduced predatory Nile perch (Lates niloticus) in lakes Victoria, Kyoga, and Nabugabo of East Africa was a dramatic decline in populations of many native fishes. However, a few species, including the characid... -
The effect of water hyacinth, Eichhornia crassipes (Martius) SolmsLaubach (Pontederiaceae), on benthic biodiversity in two impoundments on the New Year's River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JohnM Midgley MartinP Hill MartinH VilletWater hyacinth, Eichhornia crassipes (Martius) Solms-Laubach (Pontederiaceae), forms thick mats that affect water resource utilisation, but little is known about its impacts on biodiversity in aquatic ecosystems. The benthic invertebrate community and algal biomass were sampled under water hyacinth mats... -
Translocation of marbled African lungfish, Protopterus aethiopicus (Telostei: Protopteridae), and its fishery in Lake Baringo, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ChrisestomM Mlewa JohnM GreenThe translocation of the marbled African lungfish Protopterus aethiopicus into Lake Baringo created a new fishery for the local community, who capture them primarily in a bottom-set long line fishery. Its introduction, development and current fishery status in the lake... -
Occurrence of Barbus profundus Greenwood 1970 (Telostei: Cyprinidae) in mid-water in Lake Victoria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Denis Tweddle John Balirwa Dave Maclennan John Okaronon Rhoda Tumwebaze Albert Getabu Sam Bassa -
Copper, zinc and iron concentrations in water, sediment and Cynothrissa mento (Regan 1917) from Ologe Lagoon, Lagos, Nigeria: a preliminary survey
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CA Kumolu-Johnson --- Department of Fisheries, Faculty of Science, Nigeria PE Ndimele --- Department of Fisheries, Faculty of Science, Nigeria SL Akintola --- Department of Fisheries, Faculty of Science, Nigeria CC Jibuike --- Department of Microbiology and Botany, Faculty of Science, NigeriaThe levels of Cu, Fe and Zn in water, sediment and Cynothrissa mento, a commercially important fish species, were investigated from April 2007 to March 2008 at three sites in Ologe Lagoon. Metal levels in the water column and C... -
DISPLAY AND MATE SELECTION IN THE WHYDAHS AND BISHOP BIRDS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Emlen --- Department of Zoology, University of Wisconsin,, -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Blignaut --- , C. H. B. Grant --- , C.W. Mackworth-Praed --- , J. Paterson --- , S. Rhodesia J. Paterson --- , S. Rhodesia J.M. Winterbottom --- , J. Blignaut --- , R.C. Long --- , Nyasaland Francis Hemming --- Managing Director and Secretary, -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: R.C. Long --- , R.C. Long --- , J. M. E. Took --- , D. Blaker --- , J.M. Winterbottom --- , Allan Connell --- , John Blignaut --- , -
Short Notes
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: R.K. Schmidt --- , R.K. Schmidt --- , Gray Ranger --- , John Martin --- , Robert Martin --- , D.M. Comins --- , C. Jacot-GUILLARMOD --- , J.H. Hosken --- , D. R. C. Buchanan --- College House, W.J. Lawson --- , J.M. Winterbottom --- Percy FitzPatrick Institute of African Ornithology, R.K. Brooke --- , Rhodesia P.A. Clancey --- , T.N. Pocock --- , P.A. Clancey --- , MilesB. Markus --- Department of Zoology, MilesB. Markus --- Department of Zoology, MilesB. Markus --- Department of Zoology, A.J. Tree --- , Zambia B.G. Donnelly --- , B.G. Donnelly --- , W.R. Siegfried --- Cape Dept. Nature Conservation, W.R. Siegfried --- Cape Dept. Nature Conservation, W.R. Siegfried --- Cape Dept. Nature Conservation, A. Morris --- , E. Middlemiss --- , (Cape) D. Blaker --- , D. Blaker --- , J.M. Winterbottom --- , C.J. Skead --- , J.M. Huiton --- , J.M. Hutton --- , H. J. v. D. Doel --- , -
SOME QUANTITATIVE REPRESENTATIONS OF ECOLOGICAL DISTRIBUTION AND FAUNAL STRUCTURE APPLIED TO AFRICAN BIRDS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JohnT. Emlen --- , -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: S.G. Lees --- , Lancashire P.A. Clancey --- , P.G. Johnson --- , W.R. Siegfried --- Percy FitzPatrick Institute, S. Bruins --- Percy FitzPatrick Institute, W.R. Siegfried --- Formerly Dept. Nature Conservation, C.W. Benson --- , U.K R.K. Brooke --- , Rhodesia R.J. Dowsett --- , Nigesia M.P. Stuart Irwin --- , Rhodesia W.R. Siegfried --- Percy FitzPatrick Institute of African Ornithology, w.R. Siegfried --- Percy FitzPatrick Institute of African Ornithology, W.R. Siegfried --- Percy FitzPatrick Institute of African Ornithology, R. Liversidge --- , A.J. Tree --- , A. van Reenen --- , Tvl P.A. Clancey --- , D.M. Skead --- , K.B. Newman --- , B.E. Marshall --- , J. Cooper --- , J.V. Groves --- , J. E. W. Dixon --- , -
SOME OBSERVATIONS ON MACCOA DUCK BEHAVIOUR
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: PaulA. Johnsgard -
Short Notes
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: A.B. Daneel --- , C. Niven --- , J. Niven --- , Peter Johnson --- , Ernst Schüz --- , P.A. Clancey --- , H.E. Wolters --- , C.J. Skead --- , C.P. J.H. Oosthuizen --- Department of Zoology, MilesB. Markus --- Department of Zoology, R.K. Brooke --- , Rhodesia J. Cooper --- Dept. of Agriculture, J.V. Groves --- , Salisbury W. R. S. Dean --- , A.C. Kemp --- , W. R. J. Dean --- , A.C. Kemp --- , R. A. C. Jensen --- , U.S.A. M.K. Jensen --- , U.S.A. A.C. Pooley --- , T.P. Dutton --- , G.W. Schutte --- , H.E. Evans --- , Nico Myburgh --- , C. J. O. Harrison --- , England D.H. Eccles --- , R. A. C. Jensen --- , M.K. Jensen --- , J.M. Winterbottom --- , -
SOME INFORMATION OBTAINED FROM MARKING LARGE RAPTORS IN THE KRUGER NATIONAL PARK, REPUBLIC OF SOUTH AFRICA
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JohnC. Snelling --- , U.S.A. -
LETTER
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Cooper -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: J.M. WINTERBOTTOM --- , C.J. SKEAD --- , JohnA. HART --- , N. MYBURGH --- Klawervlei, Faure, Cape, Dept. of Zoology, G.J. BROEKHUYSEN --- , J.E. MARTIN --- c/o Dept. of Zoology, R. MARTIN --- c/o Dept. of Zoology, N. MYBURGH --- c/o Dept. of Zoology, E. MYBURGH --- c/o Dept. of Zoology, G.J. BROEKHUYSEN --- c/o Dept. of Zoology, E.W. LOWDEN STOOLE --- , Rhodesia R.J. DOWSETT --- , Zambia R.J. DOWSETT --- , Zambia R.J. DOWSETT --- , Zambia C.J. VERNON --- , Rhodesia C.J. VERNON --- , Rhodesia R.K. BROOKE --- , Rhodesia S.G. BRAINE --- , South West Africa J. W.S. BRAINE --- , South West Africa R.J. DOWSETT --- , Zambia E.W. LOWDEN STOOLE --- , Rhodesia P.F. WOODALL --- , Rhodesia P.A. CLANCEY --- , -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: P.A. Clancey --- , P.A. Clancey --- , P.A. Clancey --- , R.P. Borrett --- , A.C. Kemp --- , W. R. J. Dean --- , I. A. W. McDonald --- , Peter Johnson --- , C.D. Quickelberge --- , C.J. Vernon --- Dept. of National Parks, J.A. Scott --- , -
OBITUARY
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Martin -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: R.K. Brooke --- , T.S. Wallett --- , MelvilleG. Roberts --- , A.C. Kemp --- , South Aftica M.I. Kemp --- , South Aftica JohnL. Harcus --- , South Africa W.R. Siegfried --- , South Africa P. G. H. Frost --- , South Africa C.W. Heÿl --- Department of Nature and Environmental Conservation for the Cape Province, South Africa P.A. Clancey --- , A.V. Milewski --- , C.J. Vernon --- , E. F. J. Garcia --- , E.H. Penry --- , Zambia J.N. Geldenhuys --- Division Nature Conservation, South Africa DavidB. Peakall --- , Canada A.C. Kemp --- , South Africa A. Clark --- , A. Clark --- , R.M. Harwin --- , Rhodesia J. F. R. Colebrook-Robjent --- , Zambia C.J. Vernon --- , -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Valerie Gargett --- , Rhodesia A. Craig --- Department of Zoology, P.A. Clancey --- , John Hart --- Dept. of Geography, U.S.A. A. Clark --- , RevC. Thorpe --- , A.D. Boddam-Whetham --- , A.E. Burger --- , South Africa A. Berruti --- , South Africa -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Joanna Burger --- Department of Biology, U.S.A. Michael Gochfeld --- , USA C.J. Stutterheim --- Department of Zoology, IreneM. Stutterheim --- Department of Zoology, JohnJ. Tucker --- Ecology and Conservation Unit, Dept. of Botany and Microbiology, J.C. Sinclair --- , B.D. Colahan --- , A. Craig --- Dept. of Zoology, RichardL. Bruggers --- Ministry of Agriculture, Plant Protection Department, Somalia AliA. Murshid --- Ministry of Agriculture, Plant Protection Department, Somalia John Miskell --- Ministry of Agriculture, Plant Protection Department, Somalia H.T. Laycock --- , B.L. Penzhorn --- , Pretoria A.J. Tree --- , Zimbabwe -
REVIEWS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: P.A. Clancey Alan Kemp P.A. Clancey John Mendelsohri P.A. Clancey -
SOCIAL BEHAVIOUR AND DISPERSION OF THE BLACKSHOULDERED KITE
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JohnM. Mendelsohn --- , South AfricaMendelsohn, J. M. 1983. Social behaviour and dispersion of the Blackshouldered Kite. Ostrich 54: l–18. Colour-marked Blackshouldered Kites Elanus caeruleus were studied at Settlers in the Springbok Flats, South Africa. Males usually established territories where females joined them as mates... -
REVIEWS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: M. Waltner R.K. Brooke John Mendelsohn H.C. Biggs R.K. Brooke -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: J.A. Cambray --- , A.F. Boshoff --- , South Africa A.S. Robertson --- Department of Zoology, South Africa P.J. Haarhoff --- , P.J. Mundy --- Vulture Study Group, South Africa A.C. Roberts --- Vulture Study Group, South Africa B.S. Steel --- Vulture Study Group, South Africa G.R. McLachlan --- , R.P. Wilson --- Percy FitzPatrick Institute of African Ornithology, South Africa R.K. Brooke --- Percy FitzPatrick Institute of African Ornithology, South Africa DavidW. Johnston --- Dept. of Biology, U.S.A. P.G. Ryan --- FitzPatrick Institute, South Africa B. Rose --- , South Africa -
REVIEWS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: GordonL. Maclean M. P. S. Irwin André Boshoff John Mendelsohn Roy Earlé David Cameron Duffy G.D. La Cock David Cameron Duffy C.J. Vernon -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: R.T. Wilson --- , UK John Mendelsohn --- , South Africa W. R. J. Dean --- , South Africa R.K. Brooke --- , South Africa -
HABITAT PREFERENCES, POPULATION SIZE, FOOD AND BREEDING OF SIX OWL SPECIES IN THE SPRINGBOK FLATS, SOUTH AFRICA
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JohnM. Mendelsohn --- , NamibiaMENDELSOHN, J. M. 1989. Habitat preferences, population size, food and breeding of six owl species in the Springbok Flats, South Africa. Ostrich 60:183-190. -
HUNTING BEHAVIOUR OF BLACKSHOULDERED KITES IN THE AMERICAS, EUROPE, AFRICA AND AUSTRALIA
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JohnM. Mendelsohn --- , South Africa FabianM. Jaksić --- Departamento de Biologia Ambiental,Mendelsohn, J. M. & Jaksić, F. M. 1989. Hunting behaviour of Blackshouldered Kites in the Americas, Europe, Africa and Australia. Ostrich 60:1-12. -
THE FEEDING HABITS OF SOME AFROTROPICAL FOREST BULBULS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: D.N. Johnson --- , South AfricaJohnson, D.N. 1989. The feeding habits of some Afrotropical forest bulbuls. Ostrich suppl. 14:49-56. -
NOTICE
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JOHNE. COOPER --- , East Africa -
REVIEW
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Cooper -
Reviews
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: AnthonyJ. van Zyl T.B. Oatley John Cooper R.K. Brooke John Cooper Alan Kemp -
ALTITUDINAL MIGRATION IN NATAL
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: D.N. Johnson --- , South Africa G.L. Maclean --- Department of Zoology & Entomology, South AfricaJohnson, D.N. & Maclean, G.L. 1994. Altitudinal migration in Natal. Ostrich 65: 86–94. -
ESTABLISHMENT, GROWTH AND CONSERVATION OF A MAINLAND COLONY OF JACKASS PENGUINS SPHENISCUS DEMERSUS AT STONY POINT, BETTY'S BAY, SOUTH AFRICA
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: PhilipA. Whittington --- Avian Demography Unit Department of Statistical Sciences, South Africa JanH. Hofmeyr --- , South Africa John Cooper --- , South AfricaWhittington, P.A., Hofmeyr, J.H. & Cooper, J. 1996. Establishment, growth and conservation of a mainland colony of Jackass Penguins Spheniscus demersus at Stony Point, Betty's Bay, South Africa. Ostrich 67: 144–150. -
Short Notes
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Russell Thorstrom --- , USA Lily Arison Rene de Roland --- , Madagascar StephanieJ. Tyler --- Room 106, Department of Animal Health and Production, Botswana Jerry M.S. Lewis --- , UK Lindsay Tyler --- Room 106, Department of Animal Health and Production, Botswana A. Wood --- KwaZulu Department of Nature Conservation, South Africa D.N. Johnson --- , South Africa -
Description of a new taxon brookei of Levaillant's Cisticola Cisticola tinniens from the Western Cape, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: M. Herremans D. Philogene G.D. Underhill J.M.H Raijmakers L.G. Underhill D. Johnson H. Bernitz Z. Bernitz M.B. Bowker S.J. De BeerHerremans, M., Philogene, D., Underhill, G.D., Raijmakers, J.M.H., Underhill, L.G., Johnson, D., Bemitz, H., Bernitz, Z., Bowker, M.B. & De Beer, S.J. 1999. Description of a new taxon brookei of Levaillant's Cisticola Cisticola tinniens from the Western Cape, South Africa... -
Short Notes
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Gary Voelker --- , United States of America T.B. Oatley --- Avian Demography Unit, South Africa W. R. J. Dean --- , South Africa Peter Steyn --- , South Africa Onno Huyser --- , South Africa W. R. J. Dean --- , South Africa J.B. Williams --- , South Africa Joris Komen --- , Namibia John Paterson --- Department of Conservation, Forestry Faculty, South Africa S.J. Milton --- , South Africa W. R.J. Dean --- , Malawi Kvan Zegeren --- , Malawi J. G.M. Wilson --- , Malawi -
Book Review
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: P. A. Johnsgard --- Department of Zoology and Entomology, University of Natal, Pietermaritzburg, Mike Lawes --- Department of Zoology and Entomology, University of Natal, Pietermaritzburg, -
Obituary
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Terry Oatley John Vincent -
Food of the Little Swift Apus affinis and African Black Swift Apus barbatus in South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: CharlesT Collins --- Department of Biological Sciences, USA MarkD Anderson --- , South Africa DavidN Johnson --- , South AfricaThe food habits of the Little Swift Apus affinis and African Black Swift Apus barbatus were quantified at Kimberley, Northern Cape province and Makapansgat, Limpopo province, South Africa. As previously documented for other species, both of these swifts took a... -
First record of the association of Cattle Egret Bubulcus ibis with Shoebill Balaeniceps rex
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JassonRM John --- Department of Zoology and Wildlife Conservation, College of Natural and Applied Sciences, Tanzania WooS Lee --- Department of Forest Sciences and Research Institute for Agriculture and Life Sciences, College of Agriculture and Life Sciences, South KoreaAssociation of Cattle Egrets Bubulcus ibis with large herbivores is well documented, but there are few records of their association with large birds. Here we describe the first-known records of foraging interactions between Shoebill Balaeniceps rex and Cattle Egrets. The... -
Effects of crop diversity on bird species richness and abundance in a highland East African agricultural landscape
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: P Kariuki Ndang'ang'a --- , Kenya JohnBM Njoroge --- , Kenya Kamau Ngamau --- , Kenya Wariara Kariuki --- , Kenya PhilipW Atkinson --- British Trust for Ornithology, UK Juliet Vickery --- The Royal Society for the Protection of Birds, UKWe examined the effects of crop diversity on avian species richness and abundance in the highland farmlands of Nyandarua, Kenya. We surveyed birds using point counts and recorded habitat data at the same locations estimating cover and growth stage of... -
Moa: the Life and Death of New Zealand's Legendary Bird
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JohnM Heydinger --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute, South Africa -
Vegetation composition and structure influences bird species community assemblages in the highland agricultural landscape of Nyandarua, Kenya
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: P Kariuki Ndang'ang'a --- BirdLife International – Africa Partnership Secretariat, Kenya John BM Njoroge --- Jomo Kenyatta University of Agriculture and Technology, Kenya Mwangi Githiru --- Ornithology Section, KenyaWe examined the effects of vegetation composition and structure on bird species diversity and richness of foraging guilds in the highland agricultural landscape of Nyandarua, Kenya. Bird point counts and vegetation surveys were undertaken during four sampling periods. Linear mixed... -
Habitat use pattern of three species of egrets in a small coastal lagoon in Ghana
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Francis Gbogbo --- Department of Animal Biology and Conservation Science, Ghana Gideon Kwarteng Acheampong --- Department of Animal Biology and Conservation Science, Ghana John-Mark Yaw Atiemo --- Department of Animal Biology and Conservation Science, Ghana Quist Elorm Crepindale --- Department of Animal Biology and Conservation Science, GhanaThe foraging and pattern of habitat use of Western Reef Heron Egretta gularis, Little Egret Egretta garzetta and Great Egret Egretta alba were studied in Sakumo II Lagoon in Ghana to determine the extent of utilisation of non-fish resources by... -
The Relation of Forests and Forestry to Water Resources
Item type: Journal Article • Journal: South African Forestry Journal • Authors: JohnD. Hewlett --- , -
Fuel and Pole Supplies for Rural Populations
Item type: Journal Article • Journal: South African Forestry Journal • Authors: JOHN CASEY --- ,Lesotho has a land area of some 32 000 km2 with altitudes ranging from 1 500 to 3 500 m above sea level. The climate is rigorous with winter snows and subzero temperatures. -
Fifth-year Performance of Progenies of Selected South African Slash and Loblolly Pine Clones
Item type: Journal Article • Journal: South African Forestry Journal • Authors: JohnF. Kraus --- , Georgia EarlR. Sluder --- , GeorgiaControl-pollinated polymix progenies of nine slash pine (P. elliottii Engelm.) and 10 loblolly (Pinus taeda L.) pine from some of the best clones in a South African tree improvement programme were tested in Georgia. Overall, the progenies of the South... -
A Comparison of Census Techniques of Common Duiker and Bushbuck in Timber Plantations
Item type: Journal Article • Journal: South African Forestry Journal • Authors: JohnL. Schmidt --- ,Common duiker (Sylvicapra grimmia) and bushbuck (Tragelaphus scriptus) may have the greatest potential for management of any antelope in southern Africa. Both species are relatively common and their populations continue to flourish under conditions which have caused many species to... -
Increased self-efficacy following a ten-day developmental voyage
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: JohnA Hunter --- Department of Psychology, New Zealand Sarah Kafka --- Department of Psychology, New Zealand Jill Hayhurst --- Department of Psychology, New Zealand Hayley Clark --- Department of Psychology, New Zealand Desiree Dickerson --- Department of Psychology, New Zealand Gordon Harold --- Department of Psychology, New Zealand Mike Boyes --- Department of Physical Education, Kerry O’Brien --- Department of Psychology, England Maurice Stringer --- Department of Psychology, Northern Ireland -
Stefans Grové: winds of change
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: John HinchIn 1981 the South African composer Stefans Grové was commissioned to compose 13 pieces for specifically selected wind instruments for inclusion in Unisa's Music Examinations syllabi. This article investigates these works and determines both their compositional characteristics – especially his... -
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-JohnsonThe 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... -
A robust method for generating separate catch time-series for each of the hake species caught in the Namibian trawl fishery
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: E Johnsen --- , Norway J Kathena --- Ministry of Fisheries and Marine Resources, NamibiaMerluccius capensis and M. paradoxus are morphologically very similar and cannot be registered separately by species in the Namibian commercial hake catches. This prevents a biologically plausible single-species stock assessment from being carried out. Here, species-separated data from an observer... -
Introduction by the Guest Editor
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Trimble [d858040e18] -
The Historical Development of the International Network on Appropriate Technology (INAT)
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Trimble [d858048e18] -
Review of sustainable forest management Criteria and indicators
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: John Scotcher David Everard -
Book reviews
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: John Scotcher --- , Diek van der Zel --- , DennisL. Owen --- , -
Southern Africa: Woodbasket of the future
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: JohnL Job --- ,With increasing political and economic stability in prospect, the region's potential as a grower of plantations is explored. Along with the potential afforestation, the region's ability to exploit the resources so generated is considered across a variety of manufacturing industries... -
Relative success of self and outcross pollen after mixed- and single-donor pollinations in Eucalyptus grandis
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: TN Horsley --- School of Biological and Conservation Sciences, South Africa SD Johnson --- School of Biological and Conservation Sciences, South AfricaA previous observation that self-pollen tubes traversed the style at a slower rate than cross-pollen tubes in Eucalyptus grandis and E. urophylla suggested the presence of cryptic self-incompatibility (CSI) in these species. The aim of the present study was, with... -
Pinus saw timber tree optimisation in South Africa: a comparison of mechanised tree optimisation (harvester/processor) versus current manual methods
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: John Eggers --- , South Africa Andrew McEwan --- , South Africa Beatrice Conradie --- , South AfricaBoth Cut to Length (CTL) and Full Tree/Tree Length (FT/TL) ground-based systems are used to harvest pine in South Africa. The fully mechanised CTL system is the most recently introduced system in South Africa. One of the reasons for the... -
Experiences of collaboration, coordination and efficiency in the delivery of HIV/AIDS home-based care in Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: John Mazzeo --- Department of Anthropology, United States Loveness Makonese --- Department of Sociology and Anthropology, South AfricaThe difficulties of achieving successful collaboration between stakeholders can lead to uncoordinated and fragmented outcomes for HIV/AIDS programming, which has consequences for the immediate health and livelihood security of the intended beneficiaries. This article examines the collaboration between local, national... -
Heavy metal pollution levels in water and oysters, Saccostrea cucullata, from Mzinga Creek and Ras Dege mangrove ecosystems, Tanzania
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Augustina Mtanga JohnF MachiwaHeavy metal (cadmium, chromium, copper, mercury, lead and zinc) concentrations in mangrove forests were investigated in water, suspended particulate matter (SPM) and oyster samples from the Mzinga Creek and Ras Dege mangrove stands, Tanzania, using Inductively Coupled Plasma–Atomic Emission Spectroscopy... -
Dry season fish survival in isolated pools and within sand-beds in the Mzingwane River, Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JohnL MinshullFour isolated pools in the otherwise dry Mzingwane River, Zimbabwe, were sampled in December 1985 and a total of 4 547 specimens of 23 species were collected. The dominant species, by number, were Chiloglanis paratus, followed by Barbus toppini, Mesobola... -
Effect of garlic, black seed and Biogen as immunostimulants on the growth and survival of Nile tilapia, Oreochromis niloticus (Teleostei: Cichlidae), and their response to artificial infection with Pseudomonas fluorescens
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AhmedS Diab SalahM Aly George John Yasser Abde-Hadi MohamedF MohammedThree dosage levels of black seed, garlic and commercial Biogen were administered for three months in summer and six months in winter to test their stimulation effect on growth, survival and response to challenge infection in Oreochromis niloticus. At the... -
A preliminary assessment of the health status of feral populations of Chrysichthys nigrodigitatus in Lagos lagoon complex, Nigeria, using a modified Health Assessment Index protocol
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OluwatosinM Olarinmoye EdwinO Clarke ChristopherA Kumolu-Johnson OluwatoyinJ AderinolaA 'snapshot' evaluation of the health status of feral populations of the brackish water catfish, Chrysichthys nigrodigitatus, was carried out in 2006 at four locations in the Lagos lagoon complex, with varying levels of anthropogenic impacts, using a modified Health... -
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, IndiaGoldfish, 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... -
Escapement of Cape hakes under the fishing line of the Namibian demersal sampling trawl
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Jørgensen A Engås E Johnsen T Iilende P Kainge P SchneiderSwept area surveys in Namibian waters provide input data to the stock assessment model. To evaluate the model's predictions, it is important to understand the catch efficiency of sampling trawls. The objective of this study was to establish whether Cape... -
Impact of the invader Ipomoea hildebrandtii on grass biomass, nitrogen mineralisation and determinants of its seedling establishment in Kajiado, Kenya
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JK Mworia JI Kinyamario EA JohnThe invasive coloniser Ipomoea hildebrandtii aggravates the problem of inadequate grass forage in Kajiado district, Kenya. To test its impact on grass biomass, nitrogen (N) mineralisation and seedling establishment, grazing and coloniser density were controlled using experimental exclosures and weeding... -
Personality disturbance in adolescents living with HIV/AIDS: a review
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Emma Rebecca JohnstonThis paper presents a review of theoretical and empirical research on personality disturbance in adolescents living with HIV/AIDS. First we discuss the relationship between mental health in adolescents and HIV/AIDS, and second we provide an overview of personality disturbance in... -
Effects of habitat fragmentation on bird communities of sand forests in southern Mozambique
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JohnW Wilson RudiJ van Aarde BerndtJ van RensburgWe investigated the influence of forest fragment size and isolation on the bird assemblages in the species- and endemic-rich sand forests of the Maputaland Centre of Endemism, southern Mozambique. Point-centre surveys were conducted across 12 sand forest patches that varied... -
Objectifs et priorités pour la conservation des oiseaux et de la biodiversité d'Afrique
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Thomas Brooks Luciano Andriamaro Roy Gereau Frank Hawkins Kim Howell David Knox Penny Langhammer JohnF Lamoreux PorterP Lowry Quentin Luke Paul Matiku MeghanW McKnight Charles Msuya Robinson Mugo Harison Rabarison Zo Lalaina Rakotobe Harison RandrianasoloBiodiversity is facing an extinction crisis, with rates of species loss three orders of magnitude higher than average throughout geological history. However, neither biodiversity nor threats are randomly distributed around the planet, and so it is extremely important to target... -
Abundance, movements and habitat use by African Grey Parrots (Psittacus erithacus) in Budongo and Mabira forest reserves, Uganda
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JohnB Amuno Renato Massa Christine DranzoaPopulations of African Grey Parrots are threatened by increased forest loss and the pet trade. Budongo forest reserve has, for over 60 years, been subjected to selective logging. Mabira forest reserve faces human pressures characterised by extractive disturbances, and agricultural... -
Impact of Eucalyptus plantations on the avian breeding community in the East Usambaras, Tanzania
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JassonRM John JonathanDL KabigumilaThe nesting bird species in natural forests and Eucalyptus plantations on the Amani Plateau, East Usambara, were studied during the breeding season of September 2003 to March 2004. Some forest birds — like barbets, batis, broadbills, doves, flycatchers, greenbuls, hornbills,... -
The third international workshop on Greater Flamingos in the Mediterranean region and north-west Africa: summary of main outputs
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan Johnson Arnaud BéchetThe third international workshop on Mediterranean and West African flamingos was held at Djerba, Tunisia, on 26 November 2004. The workshop, organised by Arnaud Béchet from Tour du Valat, was attended by 33 participants from 10 countries. Twelve communications facilitated... -
Primary moult patterns and morphometrics in the Green-winged Pytilia Pytilia melba
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: CraigT Symes JohnW WilsonWe investigated primary moult and morphometrics in the Green-winged Pytilia Pytilia melba during a six-month period (May–October) in central South Africa. A total of 157 pytilias were captured; 80 (51.0%) of these were in active primary moult during all months... -
Terms of address usage by police officers at Mbare Police Station, Harare, in conversation with complainants
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Partson Kufakunesu --- Department of Linguistics, Zimbabwe John Mutambwa --- Department of Linguistics, Zimbabwe George Mavunga --- Academic Development Centre, South AfricaThis article describes terms of address usage by police officers at Mbare Police Station, Harare, in conversation with members of the public who came to report cases from 3 June 2010 to 12 October 2010. The researchers visited the police... -
The Kihema causative construction within Baker's theory of incorporation
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: John Mwesigwa MugisaBaker (1988) states that the causative verb is a morpheme that needs to be attached to a host. A base verb must move cyclically and fuses with the causative verb in a higher clause. By the projection principle, this movement... -
First brushstrokes: initial comparative results on the Additive Bilingual Education Project (ABLE)
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Elize Koch John Landon MJ Jackson Cordelia FoliThe ABLE project was started in 2003 at a school of mainly first language speakers of isiXhosa in the rural areas of the Eastern Cape, South Africa with the purpose of (i) assessing the long term effect of additive (late-exit... -
Problems with Theory, Problems with Practice: Wide Reflective Equilibrium and Bioethics
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Jeremy St John --- The Centre for Applied Philosophy and Public Ethics, The University of Melbourne,In A Theoiy of Justice, John Rawls devised the method of reflective equilibrium in an attempt to broker consensus between ethical approaches emphasising individual moral judgements, and those emphasising moral principles, expanding this method in the later paper; “The Independence... -
In Defense of Classical Foundationalism: A Critical Evaluation of Plantinga’s Argument that Classical Foundationalism is Self-Refuting
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John M DePoe --- Department of Philosophy University of Iowa, USAIn numerous works, Alvin Plantinga argues that classical foundationalism is a failed theory of knowledge because of its self-referential incoherence. Plantinga’s argument, however, fails to demonstrate that classical foundationalism is self-refuting. To bring this to light, I will review the... -
The Timing Experiments of Libet and Grey Walter
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John M Ostrowick --- School of Computer Science, University of the Witwatersrand Wits 2050, South AfricaThe neurological experiments conducted by Benjamin Libet (1985) and Grey Walter (1993, in Dennett) provide evidence that our actions are caused by non-conscious brain events beyond our conscious awareness. Normally, we assume that our conscious choices lead us to do... -
Prospects for Reconciling Sellars’ World Images
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Collier --- School of Philosophy and Ethics,Almost fifty years ago Wilfrid Sellars described two competing ways of imagining the world, the Manifest Image and the Scientific Image. The Manifest Image is an idealization of common sense aided by critical philosophy, whereas the Scientific Image is the... -
Explaining Biological Functionality: Is Control Theory Enough?
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Collier --- Philosophy and Ethics University of KwaZulu-Natal,It is generally agreed that organisms are Complex Adaptive Systems. Since the rise of Cybernetics in the middle of the last century ideas from information theory and control theory have been applied to the adaptations of biological organisms in order... -
Holism and Emergence: Dynamical Complexity Defeats Laplace’s Demon
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Collier --- School of Philosophy and Ethics, University of KwaZulu-Natal, South AfricaThe paradigm of Laplacean determinism combines three regulative principles: determinism, predictability, and the explanatory adequacy of universal laws together with purely local conditions. Historically, it applied to celestial mechanics, but it has been expanded into an ideal for scientific theories... -
Waterbird populations at the Orange River mouth from 1980–2001: a re-assessment of its Ramsar status
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: MarkD Anderson Holger Kolberg P Corné Anderson John Dini Abe AbrahamsThe Orange River mouth (ORM), at the end of the longest river in South Africa, is one of few perennial wetlands on the arid south-west African coast. The ORM supports a large number of waterbirds, with a maximum of 20... -
A need for continued collecting of avian voucher specimens in Africa: why blood is not enough
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JohnM Bates RauriCK Bowie DavidE Willard Gary Voelker Charles Kahindo -
The Chinspot Batis (Batis molitor) mimics the Woodward's Batis (Batis fratrum):
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JohnW Wilson Michael Scantlebury -
A NOTE ON THE MATTER OF NAMES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Hewitt -
BIRD PROTECTION AND SPORTSMANSHIP
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: K.C. Johnson -
1. BIRD SANCTUARIES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: K.C. Johnson -
John William McCallum
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Hewett -
2. THE DIKKOPS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: K.C. Johnson -
6. NOTES BY CORRESPONDENTS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: AmbroseA. Lane --- , W.V. Morony --- , C.D. Priest --- , K.C. Johnson --- , Zosterops CecilD. Priest --- , -
2. HERONS IN HISTORY AND AT WESTMINSTER, O.F.S
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: K.C. Johnson -
3. SOME CRITICAL REMARKS ON BIRD PROTECTION LEGISLATION
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: K.C. Johnson -
NOTES ON SOME BIRDS IN THE ALBANY MUSEUM
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Hewitt -
NOTES ON NESTING BIRDS OF THE ORANGE FREE STATE
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: K.C. Johnson -
3. NOTES ON OSPREY, EGYPTIAN COOSE AND SPECKLED PICEON
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: K.C. Johnson -
OBITUARY
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Edward Healey -
6. SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: J.S. Watt --- , S.W. Africa J.S. Watt --- , C.W. Benson --- , JohnJ. Cable --- , -
7. SHORT NOTES FROM MEMBERS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: R.C. Wood J.C. Knobel C.W. Benson John Simpson Chas. Wyndham --- , GeorgeF. Talent -
6. SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: C.K. Niven Wilhelm Gilges W.W. Roberts W.W. Roberts M. F. N. Meikeljohn --- , G.J. Broekhuysen --- -
1. AFRIKAANS BIRD-NAMES IN RIVERSDALE, C.P.
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JOHN MUIR -
3. NOTES ON MIGRATORY BIRDS FROM THE SOUTHERN SHORES OF LAKE VICTORIA, &c. DECEMBER 22, 1939, TO FEBRUARY 28, 1940
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: M. F. M. MEIKLEJOHN -
CORRECTION
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: M. F. M. MEIKLEJOHN --- , -
1. AN APPEAL BY OUR PRESIDENT
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JOHN VOELCKER -
2. PALAEARCTIC WADERS IN SOUTH AND MIDDLE AFRICA
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: G.J. Broekhuysen M. F. M. Meiklejohn -
CORRESPONDENCE
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Owen Crosby --- Central Command Headquarters, Fergus Rennie --- , A.B. Jenner --- , E.R. Roberts --- , John Hewitt -
8. PROCEEDINGS OF THE EIGHTEENTH ANNUAL GENERAL MEETING OF THE SA ORNITHOLOGICAL SOCIETY HELD IN THE COMMITTEE ROOM OF THE PUBL
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JOHN VOELCKER --- , -
PRESIDENT'S LETTER
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JOHN VOELCKER -
PRESIDENTIAL ADDRESS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Voelcker --- , -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Kennedy --- , JamesP. Chapin --- , Dean Amadon --- , R.M. Harwin --- , F. Haverschmidt --- , Surinam R.A. Ju -
Post-mortem examination and sampling of African flamingos (Phoenicopteridae) under field conditions
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John E Cooper --- Faculty of Veterinary Medicine, Kenya Amy E Deacon --- Centre for Biological Diversity, UK Thomas Nyariki --- African Union–Interafrican Bureau for Animal Resources, KenyaRecent largely unexplained deaths in African flamingos have prompted the need for standard, reproducible methods for the post-mortem examination of these birds, for the taking of samples and for the recording of findings. Here we describe suitable techniques and present... -
Genetic diversity of maize germplasm lines and implications for breeding Maize streak virus resistant hybrids
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Nothando Mafu --- Plant Pathology, School of Agricultural, Earth and Environmental Sciences, South Africa Roobavathie Naidoo --- Plant Pathology, School of Agricultural, Earth and Environmental Sciences, South Africa Pedro Fato --- African Centre of Crop Improvement, School of Agricultural, Earth and Environmental Sciences, South Africa Jedidah Danson --- African Centre of Crop Improvement, School of Agricultural, Earth and Environmental Sciences, South Africa John Derera --- African Centre of Crop Improvement, School of Agricultural, Earth and Environmental Sciences, South Africa Mark D Laing --- Plant Pathology, School of Agricultural, Earth and Environmental Sciences, South AfricaEvaluation of genetic distances between maize inbred lines can be used to maximise heterosis in hybrids. This study was conducted to determine genetic distances among 25 maize inbred lines in the Maize streak virus disease (MSVD) QTL region to develop... -
Health risks associated with obesity
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Aus Tariq Ali --- Department of Chemical Pathology, National Health Laboratory Service, Nigel John Crowther --- Department of Chemical Pathology, National Health Laboratory Service, -
Barriers to initiating insulin therapy in patients with type 2 diabetes mellitus in public-sector primary health care centres in Cape Town
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Monirul Haque --- Primary Health Care, Department of Public Health, Maryam Navsa --- Primary Health Care, Department of Public Health, Sonja Hayden Emerson --- School of Nursing, Johns Hopkins University, USA Cheryl R Dennison --- School of Nursing, Johns Hopkins University, USA Naomi S Levitt --- Division of Endocrinology and Diabetic Medicine, Department of Medicine,Background. The majority of patients with type 2 diabetes mellitus in Cape Town who attend primary care community health centres (CHCs) have unsatisfactory glycaemic control. Insulin is rarely prescribed despite its being indicated for type 2 diabetic patients with inadequate... -
NOFSA Guideline for the Diagnosis and Management of Osteoporosis
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Stephen Hough --- National Osteoporosis Foundation of South Africa (NOFSA), Brynne H Ascott-Evans --- National Osteoporosis Foundation of South Africa (NOFSA), Susan L Brown --- National Osteoporosis Foundation of South Africa (NOFSA), Bilkish Cassim --- National Osteoporosis Foundation of South Africa (NOFSA), Tobie J de Villiers --- National Osteoporosis Foundation of South Africa (NOFSA), Stan Lipschitz --- National Osteoporosis Foundation of South Africa (NOFSA), John M Pettifor --- National Osteoporosis Foundation of South Africa (NOFSA), Ernst WW Sonnendecker --- National Osteoporosis Foundation of South Africa (NOFSA), -
Herbal medications—harmless or harmful?
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: SJB Johnston --- University of Cape Town, -
Ilio inguinal block: do we know the correct dose?
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A Bosenberg --- Department of Anaesthesia, H Willschke --- Department of Anaesthesia, S Johnson --- Department of Anaesthesia, P Marhofer --- Department of Anaesthesia, S Kapral --- Department of Anaesthesia, -
Fanconi's anaemia and anaesthesia
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: SJB Johnston --- Department of Anaesthesia, Faculty of Health Sciences, South Africa AT Bösenberg --- Department of Anaesthesia, Faculty of Health Sciences, South Africa -
A case of vulval schistosomiasis
Item type: Journal Article • Journal: South African Family Practice • Authors: D O'Mahony --- Bridge Street, Port St Johns, L Banach --- Department of Pathology, Faculty of Medicine & Health Sciences, LL La Grange --- East London Hospital Complex,While schistosomiasis is endemic in South Africa, cutaneous manifestations are relatively uncommon. This case report describes the clinical findings in a patient with vulval schistosomiasis. Schistosomiasis should be considered in the differential diagnosis of genital lesions in residents in endemic... -
Infant formulas explained
Item type: Journal Article • Journal: South African Family Practice • Authors: L Johnston -
Keratoconjunctivitis sicca (dry eye)
Item type: Journal Article • Journal: South African Family Practice • Authors: Leilani Johnston --- Amayeza Info Centre,Keratoconjuctivitis sicca, more commonly known as dry eye, or dry eye disease, is common. It results from improper functioning of the lacrimal functional unit. First-line treatment with tear substitutes, such as eye drops, gels and ointments, have an essential role... -
The promise and limitations of cash transfer programs for HIV prevention
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: John Fieno --- Regional HIV/AIDS Program, US Agency for International Development, South Africa Suzanne Leclerc-Madlala --- Office of HIV/AIDS, US Agency for International Development, USAAs the search for more effective HIV prevention strategies continues, increased attention is being paid to the potential role of cash transfers in prevention programming in sub-Saharan Africa. To date, studies testing the impact of both conditional and unconditional cash... -
Informal pragmatics and linguistic creativity
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Collier --- Philosophy, South AfricaExamples of successful linguistic communication give rise to two important insights: (1) it should be understood most fundamentally in terms of the pragmatic success of each individual utterance, and (2) linguistic conventions need to be understood as on a par... -
Resilience and coping experiences among master's professional psychology students in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: David John Edwards --- Department of Psychology, South Africa Humphrey Siphiwe B. Ngcobo --- Department of Psychology, South Africa Stephen David Edwards --- Department of Psychology, South AfricaA longitudinal, five year study, with a qualitative, phenomenological approach, investigated resilience and coping experiences of 47 professional psychology master's degree students in their first year of training in South Africa. There were 12 men and 31 women, with a... -
Relationship between soil alteration index three (AI3), soil organic matter and tree performance in a ‘Cripps Pink’/M7 apple orchard
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: André H Meyer --- Agricultural Research Council–Infruitec-Nietvoorbij, South Africa John Wooldridge --- Agricultural Research Council–Infruitec-Nietvoorbij, South Africa Joanna F Dames --- Department of Biochemistry and Microbiology, South AfricaAlteration index three (AI3), which calculates the balances between three microbially-secreted enzymes, potentially enables differences between soils due to contrasting management practices to be quantified in relative terms. The ability of AI3 to distinguish between apple orchard soils under conventional... -
The Human Economy Project: first steps
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: John Sharp --- The Human Economy Project, Faculty of Humanities, South Africa Theodore Powers --- The Human Economy Project, Faculty of Humanities, South Africa Vito Laterza --- The Human Economy Project, Faculty of Humanities, South AfricaThe Human Economy Project is interdisciplinary in scope, but relies extensively on anthropological research methods. These methods are an appropriate counter to the methods adopted in mainstream economics, which has been criticised for its isolation from ‘the ordinary business of... -
Towards a human economy: reflections on a new project
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: John Sharp --- Department of Anthropology and Archaeology, South AfricaThe University of Pretoria's Human Economy project began at the end of 2010. To date it has involved eighteen post-doctoral fellows, drawn from around the world, and eight doctoral candidates, all from Africa. This paper reviews the project's progress, drawing... -
Performance of simple irrigation scheduling calendars based on average weather data for annual ryegrass
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Melake K Fessehazion --- Plant Production and Soil Science, South Africa John G Annandale --- Plant Production and Soil Science, South Africa Colin S Everson --- Plant Production and Soil Science, South Africa Richard J Stirzaker --- Plant Production and Soil Science, South Africa Michael van der Laan --- Plant Production and Soil Science, South Africa Wayne F Truter --- Plant Production and Soil Science, South Africa Amanuel B Abraha --- Plant Production and Soil Science, South AfricaPoor irrigation management in pastures can lead to yield and quality reduction as well as loss of income through extra pumping and leaching of nitrate fertiliser. A number of irrigation scheduling techniques of varying levels of sophistication have been developed... -
Effect of production site, storage duration, and hot water and molybdenum dips on bioactive compounds with antioxidant properties in lemon flavedo during cold storage
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Nhlanhla Mathaba --- School of Agricultural, Earth and Environmental Sciences, South Africa John P Bower --- School of Agricultural, Earth and Environmental Sciences, South Africa Isa Bertling --- School of Agricultural, Earth and Environmental Sciences, South AfricaCertain bioactive compounds, such as vitamin E (α-tocopherol), vitamin C (ascorbic acid), β-carotene, polyphenols (e.g. flavonoids and flavonones, viz. hesperidin and naringin) have antioxidant properties and their presence in the citrus flavedo plays a significant role in mitigating oxidative stress,... -
Impact of soil amendments and weather factors on bacterial wilt and yield of two tomato cultivars in Abeokuta, Nigeria
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Akinola R Popoola --- Department of Crop Protection, Nigeria Sikiru A Ganiyu --- Department of Crop Protection, Nigeria Oluwatoyin A Babalola --- Department of Soil Science and Land Management, Nigeria Emily I Ayo-John --- Department of Crop Protection, Nigeria Ayodele A Fajinmi --- Department of Crop Protection, Nigeria Iyabo A Kehinde --- Department of Biological Sciences, Nigeria Taiwo H Adegboye --- IFSERAR, NigeriaTomato bacterial wilt, caused by Ralstonia solanacearum, leads to tomato yield losses of up to 80% in south-western Nigeria. Soil amendments and weather conditions are important in the management of the disease. Field experiments were conducted at the Research Farm... -
Effect of organic and conventional practices on carbon-substrate utilisation by the soil microbial community in a ‘Cripps Pink’/M7 apple orchard
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: André H Meyer --- Agricultural Research Council–Infruitec/Nietvoorbij, South Africa John Wooldridge --- Agricultural Research Council–Infruitec/Nietvoorbij, South Africa Joanna F Dames --- Department of Biochemistry and Microbiology, South AfricaChanges in microbial community metabolic profiles potentially can be used to identify differences in soil characteristics caused by dissimilar orchard floor management practices. The impacts of orchard floor management practices on the microbial community metabolic diversity (CMD) were examined in... -
The knowledge and beliefs of hypertensive patients attending Katleho District Hospital in Free State province, South Africa, about their illness
Item type: Journal Article • Journal: South African Family Practice • Authors: Justin Mpinda --- Katleho District Hospital, South Africa John Tumbo --- Department of Family Medicine and Primary Health Care, South Africa Indiran Govender --- Department of Family Medicine and Primary Health Care, South Africa Benjamin Mills --- Department of Family Medicine and Primary Health Care, South AfricaIntroduction: Hypertension is a common chronic condition. A sound understanding of people’s beliefs is required in this regard. Usually, poor compliance and decisions by patients to stop taking conventional treatment and to use complementary remedies and traditional remedies arise from... -
Socially relevant computing curriculum innovation
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Trimble --- Systems and Computer Science Department, USA Harry Keeling --- Systems and Computer Science Department, USAThis paper is based on curriculum development over the past ten years that includes work at Howard University as well as universities in Zimbabwe, South Africa and Rwanda. The focus is the development of the computing discipline in a people-centered... -
Eating attitudes, body image satisfaction and self-esteem of South African Black and White male adolescents and their perception of female body silhouettes
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Tabither M Gitau --- Medical Research Council (MRC)/Wits Developmental Pathways for Health Research Unit, South Africa Lisa K Micklesfield --- Medical Research Council (MRC)/Wits Developmental Pathways for Health Research Unit, South Africa John M Pettifor --- Medical Research Council (MRC)/Wits Developmental Pathways for Health Research Unit, South Africa Shane A Norris --- Medical Research Council (MRC)/Wits Developmental Pathways for Health Research Unit, South AfricaThis cross-sectional study of urban high schools in Johannesburg, South Africa, sought to examine eating attitudes, body image and self-esteem among male adolescents (n = 391). Anthropometric measurements, Eating Attitudes Test-26 (EAT-26), Rosenberg self-esteem, body image satisfaction and perception of... -
Spatial and seasonal patterns in sighting rate and life-history composition of the white shark Carcharodon carcharias at Mossel Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Ryklief --- Department of Zoology, South Africa PA Pistorius --- Department of Zoology, South Africa R Johnson --- Oceans Research, South AfricaWhite sharks Carcharodon carcharias aggregate at specific times of the year at localities along the South African coast. At Mossel Bay, on the southern Cape coast, four sites were sampled (Seal Island, Hartenbos, Kleinbrak and Grootbrak) to investigate spatial and... -
The confounding influence of urban informality on innovation and production specialisation in production clusters: evidence from Nairobi
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John C. Harris --- Division of Regional and City Planning, College of Architecture, USAThis paper investigates two agglomeration economies, innovation and production specialisation, within Nairobi's handicraft sector. The paper asks if and by what mechanics urban informality might interfere with these important potential outcomes of clustered production. A hundred and two semi-structured interviews... -
Test anxiety: contributions of gender, age, parent's occupation and self-esteem among secondary school students in Nigeria
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: JohnBosco Chika Chukwuorji --- Department of Psychology, Sampson Kelechi Nwonyi --- Department of Psychology,Most of the previous studies on test anxiety have focused on students in higher institutions with little research on test anxiety in secondary school students. The present study examined the contributions of gender, age, parent's occupation and self-esteem on test... -
Indigenous knowledge systems – a rich appropriate technology resource
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Tharakan --- Department of Chemical Engineering, United States of AmericaIndigenous knowledge systems (IKS) comprise knowledge systems that have developed within various societies’ independent of, and prior to, the advent of the modern scientific knowledge system. IKS from various cultures evolved into broad and comprehensive knowledge systems, such as those... -
Australian acacias as invasive species: lessons to be learnt from regions with long planting histories
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: David M Richardson --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa Johannes J Le Roux --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa John RU Wilson --- Centre for Invasion Biology, Department of Botany and Zoology, South AfricaProblems associated with invasiveness of non-native tree species used in forestry are increasing rapidly worldwide and are most severe in areas with a long history of plantings. Lessons learnt in areas with long histories of plantings and invasions may be... -
Acacia mearnsii industry overview: current status, key research and development issues
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Julian Moreno Chan --- Institute for Commercial Forestry Research, South Africa Philip Day --- NTE Company (Pty) Ltd, South Africa John Feely --- Forestry consultant, South Africa Rob Thompson --- NCT Forestry Co-operative Ltd, South Africa Keith M Little --- School of Natural Resource Management, South Africa Craig H Norris --- NCT Forestry Co-operative Ltd, South AfricaAcacia mearnsii De Wild (black wattle) is an important plantation species for tannin production and woodchip exports in South Africa and Brazil. This study provides an updated overview of the black wattle industries in both countries, including planted areas and... -
Wildlife roadkill patterns on a major highway in northern Tanzania
Item type: Journal Article • Journal: African Zoology • Authors: John Kioko --- School for Field Studies, Tanzania Christian Kiffner --- School for Field Studies, Tanzania Nicole Jenkins --- Department of Environmental Studies, Davidson College, USA Wendy J Collinson --- Endangered Wildlife Trust, South AfricaDespite expanding road networks, there is limited understanding of the effects of roads on wildlife in East Africa. We present a baseline survey and describe the patterns of roadkill in the Tarangire–Manyara ecosystem of Tanzania. A 75 km stretch of... -
Intraspecific prey choice of bushmeat hunters outside the Serengeti National Park, Tanzania: a preliminary analysis
Item type: Journal Article • Journal: African Zoology • Authors: Tomas Holmern --- Department of Biology, Norway Samson Mkama --- Serengeti Regional Conservation Project, Tanzania John Muya --- Serengeti Regional Conservation Project, Tanzania Eivin Røskaft --- Department of Biology, NorwayIn this study we investigated intraspecific prey choice of illegal bushmeat hunters outside the Serengeti National Park, Tanzania. During the study 151 animals belonging to 12 species were reported killed. The majority, 76%, of prey species were migratory herbivores. Night... -
Quantification of shell banding polymorphism in the East African tree snail Sitala jenynsi (Pulmonata: Ariophantidae)
Item type: Journal Article • Journal: African Zoology • Authors: Peter F. Kasigwa --- Department of Zoology, Tanzania John A. Allen --- School of Biological Sciences, University of Southampton, U.K.In eastern Africa, populations of the tree snail Sitala jenynsi are monomorphic, dimorphic or trimorphic for the width of the upper brown band on their shells.We measured the variation in the width of this band in several populations and analysed... -
Lion predation on elephants in the Savuti, Chobe National Park, Botswana
Item type: Journal Article • Journal: African Zoology • Authors: R. John Power --- Carnivore Conservation Group, Endangered Wildlife Trust, De Beers Venetia Limpopo Nature Reserve, South Africa R. X. Shem Compion --- Carnivore Conservation Group, Endangered Wildlife Trust, De Beers Venetia Limpopo Nature Reserve, South AfricaLions rarely prey on elephants. Botswana‘s Savuti lions, however, switch to preying on elephants during the late dry season (August–November), and the frequency of this has increased in the last two decades (1985–2005). An opportunity to document this phenomenon was... -
Cryptic lineages of little free-tailed bats, Chaerephon pumilus (Chiroptera: Molossidae) from southern Africa and the western Indian Ocean islands
Item type: Journal Article • Journal: African Zoology • Authors: Peter John Taylor --- Durban Natural Science Museum, South Africa Jennifer Lamb --- University of KwaZulu-Natal, South Africa Devendran Reddy --- University of KwaZulu-Natal, South Africa Theshnie Naidoo --- University of KwaZulu-Natal, South Africa Fanja Ratrimomanarivo --- Vahatra, Madagascar Steven M. Goodman --- Vahatra, MadagascarWe investigate mitochondrial DNA and craniometric variation in southern African and Malagasy populations of the small and morphologically variable, house-roosting molossid bat, Chaerephon pumilus in relation to Malagasy populations of the related, smaller-sized species, C. leucogaster. Both cytochrome b and... -
Rediscovery of Boulengerula denhardti Nieden 1912 (Amphibia: Gymnophiona: Caeciliidae) in Meru County, Kenya
Item type: Journal Article • Journal: African Zoology • Authors: G. John Measey --- Department of Zoology, South Africa Vincent Muchai --- Section of Herpetology, National Museums of Kenya, Kenya Stephen Spawls --- 7 Crostwick Lane, Spixworth, U.K.The dearth of information on caecilian amphibians is most likely due to a lack of directed field studies. Here we report the rediscovery of a population of Boulengerula denhardti nearly a century after its description by Nieden in 1912. Morphological... -
The occurrence of taste buds in adults of the terrestrial ceacilian Boulengerula boulengeri Tornier, 1898 (Lissamphibia: Gymnophiona: Herpelidae)
Item type: Journal Article • Journal: African Zoology • Authors: Karolina A. Budzik --- Department of Comparative Anatomy, Poland Krystyna Żuwała --- Department of Comparative Anatomy, Poland G. John Measey --- Department of Zoology, South AfricaTwo generations of gustatory organs occur during amphibian ontogeny in frogs and salamanders (Anura and Caudata), and are classified as taste buds or taste discs. Taste buds are present in larval forms, whereas taste discs are typical for adults. The... -
Family accommodation mediates the association between anxiety symptoms in mothers and children
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Johnna D Jones --- Texas Child Study Center, USA Eli R Lebowitz --- Child Study Center, USA Carla E Marin --- Child Study Center, USA Kevin D Stark --- Texas Child Study Center, USA -
Movement ecology of five Afrotropical waterfowl species from Malawi, Mali and Nigeria
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Y Takekawa --- US Geological Survey, USA Shane R Heath --- US Geological Survey, USA Samuel A Iverson --- US Geological Survey, USA Nicolas Gaidet --- CIRAD, UPR AGIRs, Campus international de Baillarguet, France Julien Cappelle --- CIRAD, UPR AGIRs, Campus international de Baillarguet, France Tim Dodman --- Hundland, UK Ward Hagemeijer --- Wetlands International, The Netherlands William D Eldridge --- US Fish and Wildlife Service, USA Scott A Petrie --- Long Point Waterfowl, Canada Gregory S Yarris --- US Geological Survey, USA Shiiwua Manu --- AP Levantis Ornithological Research Institute, Nigeria Glenn H Olsen --- US Geological Survey, USA Diann J Prosser --- US Geological Survey, USA Kyle A Spragens --- US Geological Survey, USA David C Douglas --- US Geological Survey, USA Scott H Newman --- Food and Agriculture Organization of the United Nations, VietnamHabitat availability for Afrotropical waterbirds is highly dynamic with unpredictable rainfall patterns and ephemeral wetlands resulting in diverse movement strategies among different species. Movement strategies among waterfowl encompass resident, regional and intercontinental migrants, but little quantitative information exists on their... -
Effect of conventional and organic orchard floor management practices on enzyme activities and microbial counts in a ‘Cripp's Pink’/M7 apple orchard
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: André H Meyer --- Agricultural Research Council–Infruitec-Nietvoorbij, South Africa John Wooldridge --- Agricultural Research Council–Infruitec-Nietvoorbij, South Africa Joanna F Dames --- Department of Biochemistry and Microbiology, South AfricaOrganic (ORG) production practices are increasingly being used in South African apple orchards. Whether ORG orchard floor management practices differ in their effects on soil enzyme activities and microbial populations from conventional (CON) practices have not been adequately investigated, particularly... -
Aspects of the short-term money market in South Africa
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: John P. Wall --- The Ryan Nigel Corporation Limited, -
Rational expectations
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: John D. Paulus -
A graphical solution to the lease evaluation problem
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Stephen Goddard [AN0001] Steven Michener [AN0001] John Rickard [AN0001] -
The efficient market hypothesis and a change to LIFO: An empirical study on the JSE
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Rory F. Knight [AN0001] John F. Affleck-Graves [AN0001] -
Bond immunisation in South Africa
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Trevor Blench --- University of Cape Town, Graduate School of Business, John F. Affleck-Graves --- University of Cape Town, Graduate School of Business, -
The true cost of loans with rests between adjustment of principal
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: John A Rickard [AN0001] Neville J Hathaway [AN0001] Allen M Russel [AN0002]In a rested interest loan, the frequency of adjustment of the outstanding principal is different to the repayment frequency. In this paper, the structure of rested interest loans is investigated and compared to more conventional loans in which the frequencies... -
Professor Ronnie Bethlehem: An obituary
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: John Rogers -
Accounting for Experience: Phenomenological Argots and Sportive Life-Worlds
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: John Hughson David EnglisAccording a to a certain position formulated within the philosophical school of post-structuralism, attempts to reconstruct forms of consciousness are themselves textual fabrications, and should be relinquished in favour of other, more ‘textual’ forms of analysis. This paper argues that... -
The use of neural networks in predicting company failure
Item type: Journal Article • Journal: De Ratione • Authors: John Arron --- Graduate School Of Business Administration University of the Witwatersrand, South Africa Merle Sandler --- Graduate School Of Business Administration University of the Witwatersrand, South AfricaThis study investigated the use of neural networks as a tool for predicting company failure. The predictive power of neural networks was compared with more established methodologies in the field of company failure, namely multiple discriminant analysis and logistic regression... -
A postmodern perspective on the scientific status of accounting: A research note
Item type: Journal Article • Journal: De Ratione • Authors: Arline A Savage --- Faculty of Business of the University of New Brunswick Saint John,This research note contributes to the discussion about the scientific status of accounting by contrasting Thomas Kuhn’s modem approach to science with Jean-Francois Lyotard’s postmodern perspective for the current situation regarding knowledge in advanced societies, which he describes as language... -
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 AfricaWater 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... -
The impact of the global economic crisis on HIV and AIDS programmes directed at women and children in Zambia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: John Serieux --- Department of Economics, Mwansa Njelesani --- Sexual and Reproductive Health and Rights (SRHR) at UNESCO, South Africa Abson Chompolola --- Department of Economics, Zambia Ardeshir Sepehri --- Department of Economics, Harminder Guliani --- University of Regina, CanadaThis investigation sought to ascertain the extent to which the global economic crisis of 2008–2009 affected the delivery of HIV/AIDS-related services directed at pregnant and lactating mothers, children living with HIV and children orphaned through HIV in Zambia. Using a... -
Adoption of East Coast Fever Vaccine among Smallholder Dairy Farmers in Kenya: The Case of North Rift Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Tabby Karanja-Lumumba --- Kenya Agricultural and Livestock Research Organisation, Kenya John Mugambi --- Kenya Agricultural and Livestock Research Organisation, Kenya Fred Wesonga --- Kenya Agricultural and Livestock Research Organisation, KenyaDiseases are a major constraint limiting dairy cattle production, with East Coast Fever (ECF) ranking among those of high economic importance. The high cost of ECF control and treatment led to the development of the ECF vaccine, which is envisaged... -
What is chaos and how is it relevant for philosophy of mind?
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John M. Ostrowick --- Philosophy Department, South AfricaThis paper argues, in agreement with Neuringer, Beggs and others, that if we wish to scientifically characterise human choice, we have to work with a probabilistic or chaos-derived model. This has a number of implications for philosophy of mind. Firstly,... -
Grasses of the Kruger National Park and Surrounding Bushveld
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Mike Peel --- Agricultural Research Council–Animal Production Institute (ARC-API), South Africa John Peel --- Agricultural Research Council–Animal Production Institute (ARC-API), South Africa Lucas Manaka --- Agricultural Research Council–Animal Production Institute (ARC-API), South Africa -
Catchment and River Basin Management: Integrating Science and Governance
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: John P Simaika --- Department of Conservation Ecology and Entomology, South Africa -
Aspects of tourism in Kenya
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: John Middleton --- Yale University, USATourism in Kenya dates back to the colonial era. Tourists have invented a map of Kenya that comprises mainly the Rift Valley and the Indian Ocean coast; and they divide the population into ‘noble’ pastoralists and less noble agriculturalists and... -
The end of culture? Some directions for anthropology at the University of Pretoria
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: John Sharp --- Department of Anthropology and Archaeology,This is the text of on inaugural lecture as Professor of Anthropology and Head of the Department of Anthropology and Archaeology at the University of Pretoria delivered on 19 October 2004. Several changes have been made to the text to... -
The Human Economy Project: first steps
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: John Sharp --- The Human Economy Project, Faculty of Humanities, South Africa Theodore Powers --- The Human Economy Project, Faculty of Humanities, South Africa Vito Laterza --- The Human Economy Project, Faculty of Humanities, South AfricaThe Human Economy Project is interdisciplinary in scope, but relies extensively on anthropological research methods. These methods are an appropriate counter to the methods adopted in mainstream economics, which has been criticised for its isolation from ‘the ordinary business of... -
Towards a human economy: reflections on a new project
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: John Sharp --- Department of Anthropology and Archaeology, South AfricaThe University of Pretoria's Human Economy project began at the end of 2010. To date it has involved eighteen post-doctoral fellows, drawn from around the world, and eight doctoral candidates, all from Africa. This paper reviews the project's progress, drawing... -
Some Inplace Identities for Integer Compositions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Augustine O. Munagi --- The John Knopfmacher Centre for Applicable Analysis and Number Theory, South Africa James A. Sellers --- Department of Mathematics, USAIn this paper, we give two new identities for compositions, or ordered partitions, of integers. These two identities are based on closely-related integer partition functions which have recently been studied. Thanks to the structure inherent in integer compositions, we are... -
A review of the assessments of the major fisheries resources in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CL de Moor --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South Africa SJ Johnston --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South Africa A Brandão --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South Africa RA Rademeyer --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South Africa JP Glazer --- Branch: Fisheries Management, Department of Agriculture, South Africa LB Furman --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South Africa DS Butterworth --- Marine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, South AfricaThe waters off South Africa's coastline boast a rich mix of commercially fished species. Quantitative assessments of these marine resources have developed from simple methods first applied in the 1970s, to models that encompass a wide range of methodologies. The... -
Urban Schistosomiasis Transmission In Pietermaritzburg, South Africa
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: C L Johnson --- School of Botany and Zoology, Pietermaritzburg Campus, University of KwaZulu-Natal., C C Appleton --- School of life & Environmental Sciences, Howard College Campus, University of KwaZulu-Natal,Schistosomiasis is endemic in South Africa and continues to pose public health challenges especiallyindynamicallychangingareas, eg. informal settlements. Asurvey was conductedin the central Pieter maritzburg area, KwaZulu-Natal, to determine the prevalence, distribution and intensity of urinary schistosomiasis (Schistosoma haematobium) amongst occupants... -
Fever and skin lesion in a traveller: what is the diagnosis?
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Lucille H Blumberg --- University of Stellenbosch, John A Frean --- National Institute for Communicable Diseases of the National Health Laboratory Service and University of the Witwatersrand, -
Validation of a rapid tuberculosis PCR assay for detection of MDR-TB patients in Gauteng, South Africa
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Limenako G Matsoso --- National Tuberculosis Reference Laboratory, National Institute for Communicable Diseases (NICD), National Health Laboratory Service (NHLS) and Division of Virology and Communicable Disease Surveillance, University of the Witwatersrand, Hendrik J Koornhof --- National Tuberculosis Reference Laboratory, National Institute for Communicable Diseases (NICD), National Health Laboratory Service (NHLS) and Division of Virology and Communicable Disease Surveillance, University of the Witwatersrand, Yosuf Veriava --- Department of Internal Medicine, Xoliswa Poswa --- Gauteng Mycobacteriology Referral Laboratory, Violet Gabashane --- Gauteng Mycobacteriology Referral Laboratory, John Ratabane --- Gauteng Mycobacteriology Referral Laboratory, Gerrit J Coetzee --- National Tuberculosis Reference Laboratory, NICD, NHLS,Nucleic acid amplifcation tests offer shorter turnaround times for diagnosis of tuberculosis (TB) and drug resistance of isolates compared to conventional culture methods. The rapid molecular-based multidrug-resistant (MDR)-TB assay, GenoType® MTBDRplus (Hain Lifescience) was evaluated in Gauteng, South Africa, as... -
Self-reported hypertension in eMbalenhle, Mpumalanga, South Africa: findings from a vulnerability to air pollution assessment
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: M Matooane --- Natural Resources and the Environment, Council for Scientifc and Industrial Research., R Oosthuizen --- Natural Resources and the Environment, Council for Scientifc and Industrial Research., J John --- Natural Resources and the Environment, Council for Scientifc and Industrial Research.,The study determined the prevalence of self-reported hypertension and evaluated the relationship between self-reported hypertension and associated risk factors among adults who participated in the 2006 vulnerability to air pollution study in eMbalenhle, Mpumalanga, South Africa. Face-to-face interviews were conducted... -
Multidrug-resistant nosocomial infections among private hospital patients in the North West province
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Thejane Motladiile --- Data Quality Mentor, Bojanala District, Department of Health, North West John Tumbo --- Department of Family Medicine and Primary Health Care, North West Hundson Zvinavhashe --- Former Director Health (Service Support), North West Calvinia Sebekedi --- Director (Communicable Diseases), Department of Health, North West Mmule Rakau --- Master of Management: Public Management/Enterprise Chief Director, North WestThis article reports on severe clinical cases of nosocomial infections that were caused by multidrug-resistant (MDR) isolates of Acinetobacter baumannii and Pseudomonas aeruginosa in an intensive care unit (ICU). Globally, patients in ICUs have encountered an increasing emergence and spread... -
Rotaviruses and emerging picornaviruses as aetiological agents of acute gastroenteritis
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Caroline Knox --- Department of Biochemistry, Garry Luke --- Centre for Biomolecular Sciences, School of Biology, Biomolecular Sciences Building, University of St Andrews, United Kingdom John Dewar --- Department of Life and Consumer Sciences, Pablo de Felipe --- Agencia Española de Medicamentosy Productos Sanitarios (AEMPS) Calle Campezo 1, Edifcio 8, Spain Brittany Williams --- Department of Biochemistry,It is estimated that up to 40% of acute gastroenteritis cases are undiagnosed. Rotavirus is a primary aetiological agent, so the introduction of vaccines into the national immunisation programmes of many countries, including South Africa, has shown promise in reducing... -
Colour Change in Leptotyphlops Scutifrons (Peters) and Notes on its Defensive Behaviour
Item type: Journal Article • Journal: Zoologica Africana • Authors: John Visser --- c/o Zoology Department, -
First Report of Ovoviviparity in a Southern African Amphisbaenid, Monopeltis C. Capensis
Item type: Journal Article • Journal: Zoologica Africana • Authors: John Visser --- c/o Department of Zoology, -
Ecology, Osmoregulation and Reproductive Biology of the White Steenbras, Lithognathus Lithognathus (Teleostei: Sparidae)
Item type: Journal Article • Journal: Zoologica Africana • Authors: John A.P. Mehl --- Cape Provincial Department of Nature Conservation and Zoological Institute,Over a one-year period 437 steenbras, Lithognathus lithognathus, ranging from 8-39 cm fork length were sampled from the Heuningnes River Estuary. The length-weight relationship was linear and there was no fluctuation in the modal size range throughout the year. Steenbras... -
Oviparity in Two South African Skinks of the Genus Mabuya, With Notes on Hatching
Item type: Journal Article • Journal: Zoologica Africana • Authors: John Visser --- C/o Department of Zoology, -
Patterns in the Distribution of Southern African Terrestrial Tortoises (Cryptodira: Testudinidae)
Item type: Journal Article • Journal: Zoologica Africana • Authors: John Comrie Greig --- Cape Department of Nature and Environmental Conservation, Peter D. Burdett --- Cape Department of Nature and Environmental Conservation,Distribution maps for the ten southern African species of land tortoise have been prepared using published sources and recent museum records. Three hundred and thirty-six new records have been added to these maps by a recent Cape Province tortoise survey,... -
A Laboratory Study of Caching in Desmodillus Auricularis
Item type: Journal Article • Journal: Zoologica Africana • Authors: Donald P Christian --- The Museum and Department of Zoology, John E Enders --- The Museum and Department of Zoology, Karl A Shump --- The Museum and Department of Zoology, -
Chameleons on the move: survival and movement of the Cape dwarf chameleon, Bradypodion pumilum, within a fragmented urban habitat
Item type: Journal Article • Journal: African Zoology • Authors: Krystal A. Tolley --- Applied Biodiversity Research Division, South African National Biodiversity Institute, South Africa Robert N.V. Raw --- Applied Biodiversity Research Division, South African National Biodiversity Institute, South Africa Res Altwegg --- Applied Biodiversity Research Division, South African National Biodiversity Institute, South Africa John G. Measey --- Applied Biodiversity Research Division, South African National Biodiversity Institute, South AfricaReptiles have an amazing diversity of life-history attributes ranging from the shortest- to longest-lived of vertebrate species. Estimating survival in wild populations is of key importance when understanding population dynamics and life-history evolution. However, data are lacking for a large... -
Variation in urease and β-glucosidase activities with soil depth and root density in a ‘Cripp's Pink’/M7 apple orchard under conventional and organic management
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: André H Meyer --- Agricultural Research Council Infruitec–Nietvoorbij, South Africa John Wooldridge --- Agricultural Research Council Infruitec–Nietvoorbij, South Africa Joanna F Dames --- Department of Biochemistry and Microbiology, South AfricaThe effects of conventional (CON; utilising synthetic fertiliser and herbicide) and organic (ORG; nutrients supplied in compost, weeds controlled with straw mulch) orchard floor management practices on depth-wise variation in urease and β-glucosidase activities in tree-row soils were compared in... -
A Differential Thermistor Thermometer for Measuring Temperature Gradients in the Vicinity of the Ground
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: D. R. Johnstone --- Centre for Overseas Pest Research, Division of Chemical Control Research, England -
The Use of Motorized Knapsack Sprayers for Coffee Pest Control in Uganda
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: John Bowden --- Research Division, Department of Agriculture, Uganda T. R. Jones --- Research Division, Department of Agriculture, Uganda K. E. Woodcock --- Research Division, Department of Agriculture, Uganda -
Preliminary Observations on Gestation Length and Birth Weight of Ethiopian Cattle
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: John C. Glenn [AN0001] Shankute Tessema [AN0002] Randolph Larsen [AN0003] -
Preliminary Observations on the Milk Production of Boran Type Cattle in Ethiopia
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: John C. Glen [AN0001] Shankute Tessema [AN0002] Peter Mziray [AN0003] Leon Holland [AN0004] -
Effect of Lindane on the Liquor of ArabicaCoffee as Evaluated by Different Liquorers Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: John Bowden --- Department of Agriculture, Uganda D. N. McNutt --- Department of Agriculture, Uganda B. D. Rennison --- Department of Agriculture, Uganda -
Boosting Milk Production and Income for Farm Families: The Adoption of Calliandra Calothyrsus as a Fodder Tree in Embu District, Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Steven Franzel --- International Centre for Research in Agroforestry, Kenya Hellen Arimi --- International Centre for Research in Agroforestry, Kenya John Karanja --- International Centre for Research in Agroforestry, Kenya Festus Mureithi --- International Centre for Research in Agroforestry, KenyaThe paper highlights the importance of accounting for socio-economic issues in agroforestry extension. It raises questions about how socio-economic issues can be institutionalised into forestry extension approaches. Forestry extension aims to assist people to improve their socio-economic livelihoods and welfare,... -
Managing in the East African Aviation Sector: Challenges, Opportunities, and the Drive Toward a Regional Airspace
Item type: Journal Article • Journal: Africa Journal of Management • Authors: John Mirenge --- RwandAir, Rwanda -
Martin Elgar West 1946–2015
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Emile Boonzaier --- , South Africa John Sharp --- Anthropology, South Africa Andrew Spiegel --- Department of Anthropology and Archaeology, South Africa -
A meta-review of school-based disaster interventions for child and adolescent survivors
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Christine Fu --- World Vision, USA Carol Underwood --- Johns Hopkins Bloomberg School of Public Health, USABackground: Children and adolescents are among the most vulnerable groups affected by natural and man-made disaster. To better understand research and practice concerning mental health and psychosocial support efforts in humanitarian settings, the authors conducted a comprehensive review of all... -
Repertoire performed in Anglican parishes in the Diocese of Cape Town: congregational music and local developments, 2009–2012
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Andrew-John Bethke --- Cathedral Director of Music, PO Box 2052, Grahamstown, 6140. South African College of Music, University of Cape Town,This essay explores the congregational repertoire of hymnody in the Anglican parishes of the Diocese of Cape Town, South Africa. This research was conducted over three years (2009–2012) using various media, including a survey, parish visits, interviews and archival visits... -
An ontology-based framework for mobile learning in rural secondary schools
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sibangiso Ngwenya --- Department of Computer Science, Zimbabwe Sikhulumani Bayeza Mangena --- Department of Computer Science, Zimbabwe John Trimble --- Department of Computer Science, Zimbabwe John Dumisani Hlatywayo --- Department of Computer Science, Zimbabwe Khesani Richard Chilumani --- Department of Computer Science, ZimbabweIn some countries mobile learning is becoming an important issue in academic institutions, as teachers and students get connected to networks through smart phones that combine telephony, computing, messaging and multimedia. However, in rural areas the process of designing, communicating... -
Strategies for community focused postal service development
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Trimble --- Computer Science Department, Zimbabwe Khesani R. Chilumani --- Computer Science Department, Zimbabwe Ngwenya Sibangiso --- Computer Science Department, ZimbabweTo maintain its relevance, the postal system must look at ways to innovate and optimize. It must optimize its use of resources and delivery of current services. It must employ innovation to develop new opportunities and services. The key will... -
Integrating indigenous knowledge into appropriate technology development and implementation
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Tharakan --- Department of Chemical Engineering, USAAppropriate Technology (AT) implementation should foster community empowerment and sustainability. Successful implementation requires community engagement throughout - technology conceptualization, development, implementation, assessment and impact evaluation. Development professionals should be sensitive to socio-cultural context and respect local knowledge, part of the... -
Editors' note
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Trimble --- International Network on Appropriate Technology (INAT), Industrial Engineering Department, Fulbright Professor, South Africa Mammo Muchie --- DST/NRF South African Research Professor on Innovation and Development, South Africa -
The salience of socially engaging and disengaging emotions among Black and White South Africans
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Tselane Rose Kgantsi --- Department of Personnel Management, Work and Organisational Psychology, South Africa Johnny R. J. Fontaine --- Department of Personnel Management, Work and Organisational Psychology, South Africa Michael Temane --- Office of the Registrar, South AfricaThis study investigated the experience of disengaging and engaging emotions among Black and White South African university students. In total 351 Black and White students attending a large North Western province university in South Africa (45% Black students, 69% female... -
Birds of the Serengeti and Ngorongoro Conservation Area
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jasson RM John --- Department of Zoology and Wildlife Conservation, Tanzania -
Developing and Utilizing Efficient Ties in Entrepreneurial Networks in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Sean Lux --- University of South Florida College of Business, USA Bruce T. Lamont --- Florida State University, USA Kimberly M. Ellis --- Florida Atlantic University, USA Gerald R. Ferris --- Florida State University, USA John Muchira --- Florida State University, USAHow do an entrepreneur's capabilities affect social network development? What characteristics of the African context make network dynamics different than in more Westernized and developed markets? A theoretical model that links social effectiveness to effective relationship building and network development... -
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 AfricaBackground: We aimed to establish the characteristics of patients with confirmed Pneumocystis jirovecii pneumonia recruited by passive, sentinel laboratory-based surveillance. -
The Stone-Čech compactification of a partial frame via ideals and cozero elements
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: John Frith --- Department of Mathematics and Applied Mathematics, South Africa Anneliese Schauerte --- Department of Mathematics and Applied Mathematics, South AfricaA partial frame is a meet-semilattice in which certain designated subsets are required to have joins, and finite meets distribute over these. The designated subsets are specified by means of a so-called selection function, denoted by S ; these partial... -
A first-level evaluation of a family intervention for adolescent social, emotional and behavioural difficulties in Child and Adolescent Mental Health Services
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Ciara Wynne --- Parents Plus Charity, Ireland Caoimhe Doyle --- Parents Plus Charity, Ireland Rachel Kenny --- University College Dublin, Ireland Eileen Brosnan --- Parents Plus Charity, Ireland John Sharry --- Parents Plus Charity, IrelandThis study is a first-level evaluation of a family intervention targeted at adolescents with social, emotional and behavioural difficulties (SEBD) attending Child and Adolescent Mental Health Services (CAMHS) in Ireland. It is a combined implementation of the Working Things Out... -
Therapist experiences of equine-assisted psychotherapy in South Africa: A qualitative study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lucinda Johns --- School of Applied Human Sciences, Shaida Bobat --- School of Applied Human Sciences, Juanita Holder --- School of Applied Human Sciences,This study examined therapists’ perceptions and experiences of equine-assisted psychotherapy (EAP). Participants were 14 practising EAP therapists (females = 86%; male = 14%; age range 20 to 69 years) from across South Africa. They were interviewed utilising electronic interview media... -
‘Big is beautiful’ – an exploration with urban black community health workers in a South African township
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: T Puoane --- Chronic Diseases of Lifestyle Unit, Medical Research Council, J M Fourie --- Johns Hopkins University School of Nursing and Bloomberg School of Public Health, USA M Shapiro --- South African Christian Leadership Association (SACLA) (now known as Zanempilo Health Trust), L Rosling --- JCan Am Medical Centre, People’s Republic of China N C Tshaka --- , A Oelefse --- Nutritional Interventional Research Unit, -
Using biodiversity for food, dietary diversity, better nutrition and health
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: E Frison --- International Plant Genetic Resources Institute, Italy I F Smith --- International Plant Genetic Resources Institute, Italy J Cherfas --- International Plant Genetic Resources Institute, Italy P Eyzaguirre --- School of Dietetics and Human Nutrition, Canada T Johns --- School of Dietetics and Human Nutrition, Canada -
The nutrition transition in India
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: M Vaz --- 1St John’s Institute of Population Health and Clinical Research, India S Yusuf --- Population Health Research Institute, McMaster University, Canada A V Bharathi --- 1St John’s Institute of Population Health and Clinical Research, India A V Kurpad --- 1St John’s Institute of Population Health and Clinical Research, India S Swaminathan --- 1St John’s Institute of Population Health and Clinical Research, India -
Eating attitudes in a group of 11-year-old urban South African girls
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Carmen Petersen --- Medical Research Council Mineral Metabolism Research Unit and Department of Paediatrics, Shane Norris --- Medical Research Council Mineral Metabolism Research Unit and Department of Paediatrics, John Pettifor --- Medical Research Council Mineral Metabolism Research Unit and Department of Paediatrics, Jenny MacKeown --- Medical Research Council/University of the Witwatersrand,Objectives. To explore and describe eating attitudes in early pubertal 11-year-old black and white South African girls in an urban environment undergoing transition. -
Combined stunting and overweight in young childern - a paradox?
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: John Pettifor [AN0001] -
Are we achieving the Millennium Development Goals?
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: John M Pettifor --- Department of Paediatrics, -
WHO 2010 infant feeding guidelines in resource-limited settings: attitudes of human immunodeficiency virus-infected women and other role players in Kampala, Uganda
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Jn Matovu --- Makerere University-Johns Hopkins Research Collaboration (MU-JHU)/Mulago Hospital PMTCT Program Coordinator/Investigator of Record;, Uganda C. Onyango-Makumbi --- Clinical Research Site Coordinator/Investigator, Uganda Pe. Namuli --- Nurse Study Coordinator, Uganda Eo Tanga --- Makerere School of Public Health, Uganda Mn Kagawa --- Department of Obstetrics and Gynaecology, Uganda Gk Nalwadda --- Department of Nursing, Uganda M. Motevalli --- John Hopkins School of Medicine, USA Fc Semitala --- Department of Internal Medicine, Uganda Et O’Gara --- National Institute of Allergy and Infectious Diseases Medical Officer, Henry M Jackson Foundation, USA Mg Fowler --- Johns Hopkins Clinical Trials Unit Principal Investigator and Executive Director MU-JHU, USAObjective: The objective of the study was to describe the attitudes of human immunodeficiency virus (HIV)-infected women and other role players towards the World Health Organization (WHO) 2010 infant feeding guidelines. -
Minimising instability on manufacturing systems after random disruption
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John M. Ikome --- Department of Industrial Engineering, South Africa Sesan P. Ayodeji --- Department of Industrial Engineering, South Africa Grace M. Kanakana --- Department of Industrial Engineering, South AfricaOne of the major issues in manufacturing systems is to determine how to deal effectively with unexpected disruption during production operation, (e.g. material unavailability, machine breakdown, employee absenteeism, power failure and additional resources, etc.). This paper presents a comprehensive literature... -
The Pareto principle and a hazard model as tools for appropriate scheduled maintenance in a manufacturing firm
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Johnson A. Fadeyi --- Industrial and Systems Engineering, USA Modestus O. Okwu --- Department of Mechanical Engineering, Nigeria Chinedum O. Mgbemena --- Department of Mechanical Engineering, Nigeria Kingsley C. Ezekiel --- Department of Maintenance Engineering and Asset Management, School of Mechanical, United KingdomThis study relates to a manufacturing firm that produces sanitary towels in Nigeria. The firm was confronted with operational challenge of high production downtime occasioned by frequent breakdown of the subsystems of the production system. This situation thus threatened its... -
Does the exclusion of meiofauna affect the estimation of biotic indices using stream invertebrates?
Item type: Journal Article • Journal: African Zoology • Authors: John G Mbaka --- Biological Sciences Department, Kenya Charles M M’Erimba --- Biological Sciences Department, Kenya Henry T Karanja --- Natural Resources Department, Kenya Jude M Mathooko --- Global Research Akademic and Mentoring Services, Kenya Mercy W Mwaniki --- Department of Geomatic Engineering and Geospatial Information Sciences, KenyaBiomonitoring of rivers is usually undertaken using information based on macroinvertebrate assemblages. However, exclusion of meiofauna (i.e. invertebrates less than 0.5 mm in size) when sorting benthic invertebrates can affect the estimation of densities and other biotic indices. In the present... -
Abdominal compartment syndrome complicating peptic ulcer disease
Item type: Journal Article • Journal: South African Family Practice • Authors: Ni Ni Sein --- Department of Family Medicine and Primary Health Care, South Africa John Tumbo --- Department of Family Medicine and Primary Health Care, South AfricaBackground: Abdominal compartment syndrome is a severe condition of tension generated within the closed abdominal cavity from perforation of peptic ulcer. Due to the chemical reaction and pressure consequences it has poor prognosis with very high mortality > 80%. -
A scientific model of pantheism
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Ostrowick --- Philosophy, South AfricaGiven the scientific possibility of Boltzmann Brains, and the theory from philosophy of mind known as Functionalism, it is quite possible to construct a model of pantheism which is not as implausible as restricted theism or traditional models of pantheism... -
Combinatorial parameters in bargraphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Aubrey Blecher --- The John Knopfmacher Centre for Applicable Analysis and Number Theory, School of Mathematics, South Africa Charlotte Brennan --- The John Knopfmacher Centre for Applicable Analysis and Number Theory, School of Mathematics, South Africa Arnold Knopfmacher --- The John Knopfmacher Centre for Applicable Analysis and Number Theory, School of Mathematics, South AfricaBargraphs are non-intersecting lattice paths in with 3 allowed types of steps; up (0, 1), down (0, −1) and horizontal (1, 0). They start at the origin with an up step and terminate immediately upon return to the x-axis. We... -
Sensitivity of selected dry bean (Phaseolus vulgaris L.) cultivars to mesotrione in a simulated carry-over trial
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: James Allemann --- Department of Soil, Crop and Climate Sciences, South Africa Johnny M Molomo --- Department of Soil, Crop and Climate Sciences, South AfricaMesotrione is used to control annual broadleaf weeds and grasses in maize, with waiting periods up to 24 months recommended prior to planting sensitive crops. The objectives of this study were to determine if selected dry bean cultivars exhibited differences... -
The effect of yield curve shape and level on bond immunisation effectiveness
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Brendan Prettejohn --- Department of Economics, South Africa Gary van Vuuren --- School of Economics, South AfricaThe effect of different-shaped yield curves on the effectiveness of bond immunisation was investigated. Bonds were priced using historical yield curves of various shapes and simulated interest rate shocks applied. The resulting end-values of these bonds were calculated and compared... -
Knowledge and practice of the prevention of mother-to-child transmission of HIV guidelines amongst doctors and nurses at Odi Hospital, Tshwane District
Item type: Journal Article • Journal: South African Family Practice • Authors: Kingsley Ogbonna --- Department of Family Medicine and Primary Health Care, South Africa Indiran Govender --- Department of Family Medicine and Primary Health Care, South Africa John Tumbo --- Department of Family Medicine and Primary Health Care, South AfricaBackground: Almost 60 million people are infected with and 25 million people have already died from HIV/AIDS. Sub-Saharan Africa is the region most affected, with 67% of all people living with HIV and 91% of all new infections amongst children... -
Efavirenz challenge in patients with nevirapine induced Stevens-Johnson Syndrome
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Thandekile Cecilia Manzini --- Department of Infectious Diseases, South Africa Bernadett Isabel Gosnell --- Department of Infectious Diseases, South Africa Melanie-Anne Amanda John --- Enhancing Care Foundation, South Africa, Department of Infectious Diseases, South Africa Mahomed Yunus Suleman Moosa --- Department of Infectious Diseases, South AfricaBackground: Non-nucleoside reverse transcriptase inhibitors (NNRTI) are recommended as part of first-line treatment by the World Health Organisation (WHO) for antiretroviral treatment (ART) naïve subjects. Due to reports of cross-toxicity between nevirapine (NVP) and efavirenz (EFV), there is reluctance to... -
On Africanising the philosophy curricula: Challenges and prospects
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Mweshi --- Philosophy and Applied Ethics, ZambiaAgainst a background of the predominance of Western philosophy in Africa, and the marginalisation of African philosophy (real or perceived), it is, or at least it should be, evident that the quest to Africanise the philosophy curricula in universities in... -
On a contextual South African philosophy curriculum: Towards an option for the excluded
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: M. John Lamola --- Department of Philosophy, South AfricaGoing beyond the contention that a radical methodological overhaul of doing and presenting philosophy in postcolonial Africa is required, we turn attention to the methodological complications and a possible ethical imperative this, in the South African national geo-cultural context, entails... -
The relationship between HIV and AIDS and water scarcity in Nyamakate resettlements land, north-central Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Alexio Mbereko --- University of KwaZulu-Natal, South Africa Dianne Scott --- University of KwaZulu-Natal, South Africa Moses John Chimbari --- University of KwaZulu-Natal, South AfricaHIV and AIDS and water variability have been studied separately, yet, they impact on rural households simultaneously in an interactive manner. The study provide narratives on various realities from a study in the Nyamakate community that illustrates the dialectical relationship... -
A tale from the field: Reflexivity during management research in an African-based development organisation
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Loice Natukunda --- Management, University of Sheffield, United Kingdom Phil Johnson --- Management, University of Sheffield, United Kingdom Pauline Dibben --- Management, University of Sheffield, United KingdomThis article is a product of the reflexive experience of data collection and analysis in a development organisation in Uganda. Several studies provide helpful debates about managing people in Africa. However, existent literature seldom covers pertinent issues related to collecting... -
A new species of Zygaspis (Reptilia: Squamata: Amphisbaenidae) from north-eastern Mozambique
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Donald G. Broadley --- , , Zimbabwe G. John Measey --- , , South AfricaWe describe a new species of Zygaspis based on a single specimen collected in north-eastern Mozambique and deposited in the Natural History Museum of Zimbabwe, Bulawayo. The new species is characterised by its extensively black pigmentation, 191 body annuli, discrete... -
Music fan personality stereotyping in a sample of South African young adults
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gerhard Helmut Schwär --- Department of Psychology, South Africa John Richard Middleton --- Department of Psychology, South AfricaThis study aimed to elicit stereotypes about personality characteristics of young adults residing in South Africa, based solely on music genres. Participants were 941 undergraduate students at a South African university. They responded to a number of surveys about music... -
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, USAHIV 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... -
HIV risk and prevention among men who have sex with men in rural South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kabelo Maleke --- Anova Health Institute, South Africa Nosipho Makhakhe --- Anova Health Institute, South Africa Remco PH Peters --- Anova Health Institute, South Africa Geoffrey Jobson --- Anova Health Institute, South Africa Glenn De Swardt --- Anova Health Institute, South Africa Joseph Daniels --- Program in Global Health, Division of Infectious Diseases, David Geffen School of Medicine, USA Timothy Lane --- Center for AIDS Prevention Studies, USA James A McIntyre --- Anova Health Institute, South Africa John Imrie --- Anova Health Institute, South Africa Helen Struthers --- Anova Health Institute, South AfricaRural South African men who have sex with men (MSM) are likely to be underserved in terms of access to relevant healthcare and HIV prevention services. While research in urban and peri-urban MSM populations has identified a range of factors... -
Improving voluntary medical male circumcision standards adherence and post-procedure follow-up in Uganda: A mixed methods study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sarah Smith Lunsford --- EnCompass LLC, USA John Byabagambi --- University Research Co., LLC, Uganda Zachariah Falconer-Stout --- EnCompass LLC, USA Esther Karamagi --- University Research Co., LLC, UgandaVoluntary medical male circumcision (VMMC) has been demonstrated to reduce the transmission of HIV by 60%. Scaling up VMMC services requires that they be of high quality, socially accepted, and effective. We evaluated an intervention aimed at improving VMMC standards... -
Metal accumulation in House Sparrow (Passer domesticus) from Thohoyandou, Limpopo province, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Nathan J Baker --- Department of Zoology, South Africa Simone Dahms --- Department of Zoology, South Africa Ruan Gerber --- Department of Zoology, South Africa John Maina --- Department of Zoology, South Africa Richard Greenfield --- Department of Zoology, South AfricaStudies on metal pollution (cadmium, cobalt, chromium, copper, manganese and nickel) in South African terrestrial environments are severely lacking. Due to being relatively unaffected by industrialisation, the Thohoyandou region may provide data on natural levels of metals for use as... -
Migration flyway of the Mediterranean breeding Lesser Crested Tern Thalasseus bengalensis emigratus
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Abdulmaula Hamza --- School of Marine and Environmental Sciences, Malaysia Nicola Baccetti --- Istituto Superiore per la Protezione e la Ricerca Ambientale, Italy Joe Sultana --- BirdLife Malta, Malta Jaber Yahia --- Zoology Department, Faculty of Science, Libya Marco Zantello --- Istituto Superiore per la Protezione e la Ricerca Ambientale, Italy Adriano de Faveri --- Istituto Superiore per la Protezione e la Ricerca Ambientale, Italy Nick Cutts --- Institute of Estuarine and Coastal Studies, UK John Borg --- BirdLife Malta, Malta Hichem Azafzaf --- Regional Activity Centre for Specially Protected Areas, Tunisia Pierre Defos du Rau --- Office National de la Chasse et de la Faune Sauvage, France Esam Bourass --- Nature Conservation Department, Libya Khaled Etayeb --- Zoology Department, Faculty of Sciences, Libya Michael Elliott --- Institute of Estuarine and Coastal Studies, UKThe Lesser Crested Tern Thalasseus bengalensis emigratus breeding population in the Mediterranean is found exclusively in Libya, on the two coastal islands of Gara and Elba and one wetland on the mainland coast at Benghazi. In order to improve knowledge... -
Nitrogen leakages and vegetable dry matter yield in a subtropical wetland soil amended with cattle manure and mineral nitrogen fertiliser
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Johnson Masaka --- Department of Land and Water Resources Management, Faculty of Natural Resources Management and Agriculture, Zimbabwe Eliton Chivandi --- School of Physiology, Faculty of Health Sciences, South AfricaThe response of nitrous oxide emission and nitrate leaching to increased nitrogen (N) fertiliser and cattle manure applications to wetland vegetable cropping in subtropical Africa have significant impacts on the atmospheric and terrestrial environments. Two field experiments were carried out... -
Does mid upper arm circumference identify all acute malnourished 6–59 month old children, in field and clinical settings in Nigeria?
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: C John --- Department of Paediatrics, Nigeria IE Ocheke --- Department of Paediatrics, Nigeria U Diala --- Department of Paediatrics, Nigeria RO Adah --- Department of Paediatrics, Nigeria EA Envuladu --- Department of Community Health, NigeriaObjectives: To determine the utility of mid-upper arm circumference (MUAC) in identifying acutely malnourished children compared with weight-for-height (WHZ), body mass index (BMI) for age (BAZ) and MUAC z-score (MUACZ) in clinical and field practice. -
Schistosomiasis risk factors based on the infection status among school-going children in the Ndumo area, uMkhanyakude district, South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Muhubiri Kabuyaya --- School of Nursing and Public Health, Department of Public Health Medicine, South Africa Moses John Chimbari --- School of Nursing and Public Health, Department of Public Health Medicine, South Africa Tawanda Manyangadze --- School of Nursing and Public Health, Department of Public Health Medicine, South Africa Samson Mukaratirwa --- School of Life Sciences, South AfricaBackground: Schistosomiasis remains a public health burden in South Africa, particularly in KwaZulu-Natal. The study aimed to identify the risk factors for transmission of Schistosoma haematobium among school-going children in the Ndumo area of uMkhanyakude district, KwaZulu-Natal. -
Combining Ability and Molecular Genetic Distances in Tropical Maize Lines for Grain Yield and Agronomic Traits
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Lilian Gichuru --- Kenya Agricultural and Livestock Research Organization, Kenya John Derera --- African Centre for Crop Improvement, South Africa Pangirayi Tongoona --- African Centre for Crop Improvement, South Africa Mwimali Murenga --- Kenya Agricultural and Livestock Research Organization, KenyaAscertaining the relationship of genetic diversity and combining ability would aid the design of a breeding strategy for maize hybrids. Twelve tropical maize inbreds were crossed in a half-diallel to study gene action for yield and other traits and also... -
Genetic diversity and differentiation of the Western Leopard Toad (Sclerophrys pantherina) based on mitochondrial and microsatellite markers
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jessica M. da Silva --- , , South Africa Kevin A. Feldheim --- , , USA G. John Measey --- , , South Africa Stephen Doucette-Riise --- , , South Africa Ryan J. Daniels --- , , South Africa Lucas F. Chauke --- , , South Africa Krystal A. Tolley --- , , South AfricaIntraspecific genetic diversity provides the basis for evolutionary change and is therefore considered the most fundamental level of biodiversity. Mitochondrial DNA (mtDNA) and microsatellite loci are the markers most typically used in population-level studies; however, their patterns of genetic variation... -
Assessment of water quality in selected shallow wells of Keiyo Highlands, Kenya
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Peter K. Mbaka --- Department of Civil, Construction and Environmental Engineering, Kenya John K. Mwangi --- Department of Civil, Construction and Environmental Engineering, Kenya Clement K. Kiptum --- Department of Civil and Structural Engineering, KenyaA supply of potable water is important for the sustenance of a healthy population. This study was conducted in the Keiyo Highlands, Elgeyo Marakwet County, in Kenya. The aim was to assess seasonal variation in physico-chemical and microbiological water quality... -
Removal (and attempted removal) of material from a Hooded Vulture Necrosyrtes monachus nest by a starling and a Hooded Vulture
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Lindy J Thompson --- School of Life Sciences, South Africa John P Davies --- Lawson’s Birding, Wildlife and Custom Safaris, South Africa Keith L Bildstein --- Acopian Centre for Conservation Learning, Hawk Mountain Sanctuary, USA Colleen T Downs --- School of Life Sciences, South AfricaRelatively little is documented about nest material theft in vultures. We used camera traps to monitor Hooded Vulture Necrosyrtes monachus nests for a year. We report camera trap photographs of a starling Lamprotornis sp. removing what appeared to be dung... -
Visitors to nests of Hooded Vultures Necrosyrtes monachus in northeastern South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Lindy J Thompson --- School of Life Sciences, South Africa John P Davies --- Lawson’s Birding, Wildlife and Custom Safaris, South Africa Maja Gudehus --- Selati Private Game Reserve, South Africa André J Botha --- Endangered Wildlife Trust, South Africa Keith L Bildstein --- Acopian Centre for Conservation Learning, Hawk Mountain Sanctuary, USA Campbell Murn --- Hawk Conservancy Trust, UK Colleen T Downs --- School of Life Sciences, South AfricaHooded Vultures Necrosyrtes monachus are critically endangered but little is known of their year-round use of nests or whether other species usurp Hooded Vulture nest sites. We investigated visitation rates by Hooded Vultures and other species (including potential nest predators... -
Interaction of small-scale supplemental irrigation, sawah preparation intensity and soil amendment type on productivity of lowland sawah-rice system
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: John C Nwite --- Department of Crop Production Technology, Nigeria Sunday E Obalum --- Department of Soil Science, Nigeria Charles A Igwe --- Department of Soil Science, Nigeria Toshiyuki Wakatsuki --- Faculty of Life and Environmental Sciences, JapanSole dependence on rainfall, poor water management and low soil fertility largely explain the fluctuations in agricultural productivity in West Africa. Lowlands for sawah-based rice farming often offer opportunities for small-scale supplemental irrigation but these are rarely explored and their... -
A personal memorial: Peter Zoutendyk (born 23 April 1934; died 15 June 2017)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: John Field --- Marine Research Institute and Department of Oceanography, South Africa Charles Griffiths --- Marine Research Institute and Department of Biological Sciences, South Africa -
The development of reforestation options for dryland farmland in south-western Australia: a review
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Richard J Harper --- School of Veterinary and Life Sciences, Australia Stanley J Sochacki --- School of Veterinary and Life Sciences, Australia John F McGrath --- School of Veterinary and Life Sciences, AustraliaCurrent forest industries in south-western Australia are based on regrowth natural eucalypt forests and Pinus and Eucalyptus spp. plantations, and restricted to areas with >600 mm y−1 annual rainfall. Dryland farming systems have been developed across 20 million ha in... -
Determining the optimal phenological stage for predicting common dry bean (Phaseolus vulgaris) yield using field spectroscopy
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Perushan Rajah --- Discipline of Geography, School of Agricultural, Earth and Environmental Sciences, South Africa John Odindi --- Discipline of Geography, School of Agricultural, Earth and Environmental Sciences, South Africa Elfatih Abdel-Rahman --- Discipline of Geography, School of Agricultural, Earth and Environmental Sciences, South Africa Onisimo Mutanga --- Discipline of Geography, School of Agricultural, Earth and Environmental Sciences, South AfricaOn-farm crop productivity and yield prediction are valuable for, among others, designing food policies, on-farm and after-farm planning and pricing, and marketing. Whereas existing prediction approaches are generally reliable, these require extensive and tedious field surveys and adequate ancillary agrometeorological... -
Incidence of hypoglycaemia among insulin-treated patients with type 1 or type 2 diabetes mellitus: South African cohort of International Operations Hypoglycaemia Assessment Tool (IO HAT) study
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Mahomed AK Omar --- Department of Diabetes and Endocrinology, South Africa Adri Kok --- Specialist Physician, South Africa Duma Khutsoane --- Physician, Medi-Clinic, South Africa Shaifali Joshi --- General Physician, South Africa Michael Ramaboea --- Physician, Louis Pasteur Hospital, South Africa Makepisi Lesiba Isaac Mashitisho --- Physician, Legae Medi Clinic, South Africa Verushka Chetty --- Novo Nordisk A/S, South Africa Levi John Koopman --- Novo Nordisk A/S, South Africa Louise Johnson --- Physician, Montana Hospital, South AfricaObjectives: To assess the incidence and rates of hypoglycaemia in patients with type 1 diabetes mellitus (T1DM) or type 2 diabetes mellitus (T2DM) in the South African cohort of the International Operations Hypoglycaemia Assessment Tool (IO HAT) study. -
A practical guide to the interpretation of PK/PD profiles of longer-acting analogue insulins. Part one: The principles of glucose clamp studies
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Oppel BW Greeff --- Department of Pharmacology, South Africa Jacob John van Tonder --- Triclinium Clinical Development (Pty) Ltd, South Africa Kershlin Naidu --- Department of Internal Medicine, South Africa Alicia McMaster --- Sanofi-Aventis South Africa (Pty) Ltd, South Africa Alet van Tonder --- Sanofi-Aventis South Africa (Pty) Ltd, South Africa Rashem Mothilal --- Sanofi-Aventis South Africa (Pty) Ltd, South AfricaGlucose clamp studies are used to determine pharmacokinetics (PK) and pharmacodynamics (PD) of analogue insulins. With the development of longer-acting basal analogue insulins, including glargine 300 (Gla-300) and insulin degludec (IDeg), results from numerous glucose clamp studies are readily available... -
Linguistic construct of songs of the Ham of Nigeria: A genre analysis
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Philip Hayab John --- Department of English, Nigeria Marianna W. Visser --- Department of African Languages, South AfricaThe article examines the texts of songs of the Ham of Nigeria, a minority group, whose social links originate from kinship with a commonly held ancestry, to establish how such a relationship could be explicated in the content of the... -
Self-employability Initiative: Developing a Practical Model of Disabled Students' Self-employment Careers
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Reuel Johnmark Dakung --- Faculty of Management Sciences, Department of Business Administration, Nigeria John C. Munene --- Faculty of Graduate Studies and Research, Uganda Waswa Balunywa --- Department of Entrepreneurship, Uganda Laura Orobia --- Department of Accounting and Finance, Uganda Mohammed Ngoma --- Faculty of Graduate Studies and Research, UgandaThis study investigated the self-employability initiatives of disabled university students by presenting a model that would allow the concept to be explained and used easily as a framework for working with students to develop their self-employment careers. A cross-sectional survey... -
Musics of the Free State: Reflections on a Musical Past, Present, and Future
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Erin Johnson-Williams --- Trinity Laban Conservatoire of Music and Dance, -
Assessment of genetic diversity of rice based on SNP markers for selection of parents for sheath rot (Sarocladium oryzae) resistance breeding
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Simon M Mvuyekure --- African Centre for Crop Improvement, School of Agricultural, Earth and Environmental Sciences, South Africa Julia Sibiya --- African Centre for Crop Improvement, School of Agricultural, Earth and Environmental Sciences, South Africa John Derera --- African Centre for Crop Improvement, School of Agricultural, Earth and Environmental Sciences, South Africa John Nzungize --- Rwanda Agriculture Board, Rwanda Germain Nkima --- Rwanda Agriculture Board, RwandaSheath rot of rice, caused by Sarocladium oryzae, is an important emerging rice disease not only in Rwanda, but also in other rice-growing countries. Given that cultivar resistance is a sustainable management strategy for small-scale farmers, the aim of this... -
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, UKPopulations 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... -
Generalizing inplace multiplicity identities for integer compositions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Augustine O. Munagi --- The John Knopfmacher Centre for Applicable Analysis and Number Theory, South Africa James A. Sellers --- Department of Mathematics, USAIn a recent paper, the authors gave two new identities for compositions, or ordered partitions, of integers. These identities were based on closely-related integer partition functions which have recently been studied. In the process, we also extensively generalized both of... -
Perceptions of why Malawians engage in concurrent sexual partnerships among a select population of radio listeners: findings from an exploratory study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rupali J Limaye --- Johns Hopkins Center for Communication Programs, Maryland Amanda Berman --- Johns Hopkins Center for Communication Programs, Maryland Jane Brown --- Johns Hopkins Center for Communication Programs, Maryland Triza Kakhobwe --- Johns Hopkins Center for Communication Programs, MalawiConcurrent sexual partnerships have been identified as a potential driver in the HIV epidemic in Southern Africa. This study utilised an innovative approach to explore perceptions of why Malawians may engage in these relationships, and their suggestions for reducing the... -
An exploration of the reasons women give for choosing legal termination of pregnancy at Soshanguve Community Health Centre, Pretoria, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: Carrien Steyn Indiran Govender --- Department of Family Medicine and Primary Health Care, South Africa John Velaphi NdimandeBackground: Termination of pregnancy (TOP) is one of the most commonly performed gynaecological procedures in the world and was legalised in South Africa in 1996 with the passing of the Choice on Termination of Pregnancy Act, 1996 (Act No. 29... -
A practical guide to the interpretation of PK/PD profiles of longer-acting analogue insulins. Part two: Insulin degludec vs. insulin glargine U300
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Oppel Bw Greeff --- Department of Pharmacology, South Africa Jacob John van Tonder --- Triclinium Clinical Development (Pty) Ltd, South Africa Kershlin Naidu --- Department of Internal Medicine, South Africa Alicia McMaster --- Sanofi-Aventis South Africa (Pty) Ltd, South Africa Alet van Tonder --- Sanofi-Aventis South Africa (Pty) Ltd, South Africa Rashem Mothilal --- Sanofi-Aventis South Africa (Pty) Ltd, South AfricaGlucose clamp studies form an integral part of the early development of insulin therapies. Data generated in these studies are used to establish pharmacokinetic (PK) and pharmacodynamic (PD) profiles of the agents, but methodological differences confound comparison of results from... -
Effects of exposure to an intensive HIV-prevention programme on behavioural changes among female sex workers in Nairobi, Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ravi Prakash --- Karnataka Health Promotion Trust (KHPT), India Parinita Bhattacharjee --- Department of Community Health Sciences, Canada Andrea Blanchard --- Department of Community Health Sciences, Canada Helgar Musyoki --- National AIDS and STI Control Programme (NASCOP), Ministry of Health, Kenya John Anthony --- Department of Community Health Sciences, Canada Joshua Kimani --- Department of Community Health Sciences, Canada Gloria Gakii --- Partners for Health and Development in Africa (PHDA), Kenya Martin Sirengo --- National AIDS and STI Control Programme (NASCOP), Ministry of Health, Kenya Nicholas Muraguri --- Ministry of Health (MoH), Kenya Elizabeth Mziray --- The World Bank, USA Lombe Kasonde --- The World Bank, USA James Blanchard --- Department of Community Health Sciences, Canada Shajy Isac --- Department of Community Health Sciences, Canada Stephen Moses --- Department of Community Health Sciences, CanadaWhile Kenya has had a long-standing national HIV-prevention programme, evidence on the level of exposure to its interventions and related effects on behavioural changes among female sex workers (FSWs) is limited. Using cross-sectional behavioural data collected in 2013 from 1... -
Late entry to HIV and AIDS care and treatment, Juba Teaching Hospital, Juba, South Sudan, 2013–2016
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Muki Johnson --- Immunization and Field Epidemiology Training Project, South Sudan Benjamin L Lemi --- Juba Teaching Hospital, South Sudan Hillary L Tonny --- Juba Teaching Hospital, South Sudan Adelina D David --- Juba Teaching Hospital, South Sudan Waqo Boru --- Field Epidemiology and Laboratory Training Program, Kenya James Ransom --- Field Epidemiology and Laboratory Training Program, KenyaLate diagnosis of HIV and enrolment to care are global public health challenges. This study aimed to characterise late HIV diagnoses and initiation of treatment among patients at Juba Teaching Hospital (JTH) in South Sudan. We conducted a retrospective review... -
Invertebrate drift densities in the Njoro and Kamweti Rivers in the Kenyan highlands that differ in the level of anthropogenic disturbances
Item type: Journal Article • Journal: African Zoology • Authors: Charles M M’Erimba --- Department of Biological Sciences, Kenya John G Mbaka --- Department of Land and Water Management, Kenya Priscilla W Mureithi --- Department of Biological Sciences, Kenya Ken O Ouma --- Department of Biological Sciences, KenyaInvertebrate drift is one of several fundamental ecological processes in streams. However, little is known about the dynamics of invertebrate drift in Kenyan streams. In this study, we assessed invertebrate drift in two rivers, i.e. Njoro and Kamweti, that differ... -
Usage of antibiotics in the intensive care units of an academic tertiary-level hospital
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Deanne Johnston --- Department of Pharmacy and Pharmacology, South Africa Razeeya Khan --- Department of Pharmacy and Pharmacology, South Africa Jacqui Miot --- Department of Pharmacy and Pharmacology, South Africa Shirra Moch --- Critical Care Infection Collaboration, South Africa Yolande van Deventer --- Department of Pharmacy and Pharmacology, South Africa Guy Richards --- Division of Critical Care, South AfricaBackground: The post-antibiotic era is approaching fast as multidrug-resistant bacteria emerge and the antibiotic pipeline slows to a trickle. Antibiotic stewardship requires that antibiotics be used appropriately and as such this study reviewed the utilisation of antibiotics in five adult... -
Soil taxonomy proposals for acid sulfate soils and subaqueous soils raised by the 8th International Acid Sulfate Soils Conference
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Barret M Wessel --- Department of Environmental Science and Technology, USA John M Galbraith --- Department of Crop and Soil Environmental Sciences, USA Mark H Stolt --- Department of Natural Resources Science, USA Martin C Rabenhorst --- Department of Environmental Science and Technology, USA Delvin S Fanning --- Department of Environmental Science and Technology, USA Maxine J Levin --- USDA-Natural Resources Conservation Service, USAThe 8th International Acid Sulfate Soils Conference presented examples and discussions for classification of ‘acid sulfate soils’ and related issues for ‘subaqueous soils’. When these soils are disturbed or exposed, the sulfides (predominantly pyrite) react with oxygen to produce sulfuric... -
Impacts of fundamental changes to Soil Taxonomy
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: John M Galbraith --- Department of Crop and Soil Environmental Sciences, USA Mark H Stolt --- Department of Natural Resources Science, USA Martin C Rabenhorst --- Department of Environmental Science and Technology, USA Michel D Ransom --- Department of Agronomy, USASoil Taxonomy is one of the dominant soil classification systems in the world, but has undergone revisions on a regular basis since 1983. It is larger and some parts have become difficult to apply without considerable experience. Some pedologists that... -
Prevalence of HIV and other infections and injection behaviours among people who inject drugs in Addis Ababa, Ethiopia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Minilik Demissie --- Ethiopian Public Health Institute, Ethiopia Lisa G. Johnston --- United Nations Office on Drug and Crime, USA Mekonnen Muleta --- United Nations Office on Drug and Crime, USA Dires Desyebelew --- United Nations Office on Drug and Crime, USA Wudinesh Belete --- Ethiopian Public Health Institute, Ethiopia Atsbeha G/Egxiabehre --- Ethiopian Public Health Institute, Ethiopia Nigussie Gezahegn --- Ethiopian Public Health Institute, Ethiopia Desta Kassa --- Ethiopian Public Health Institute, Ethiopia Yibeltal Aseffa --- Ethiopian Public Health Institute, EthiopiaBackground: Ethiopia is one of the sub-Saharan African countries most affected by HIV/AIDS. However, the country lacks data describing the extent of the epidemic among people who inject drugs (PWID). Thus, a bio-behavioural study was conducted in 2015 to generate... -
Courage and confidence to stop lying: caregiver perspectives on a video to support paediatric HIV disclosure in Kampala, Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sonja Klingberg --- Medical Research Council Epidemiology Unit & UK Clinical Research Collaboration Centre for Diet and Activity Research, United Kingdom Rachel King --- Global Health Sciences, Uganda Janet Seeley --- Department of Global Health and Development, United Kingdom Resty Lubwama --- Makerere University–Johns Hopkins University Research Collaboration, Uganda Margaret Namuganga --- Makerere University–Johns Hopkins University Research Collaboration, Uganda Barbara Nabiryo --- Makerere University–Johns Hopkins University Research Collaboration, Uganda Monica Etima --- Makerere University–Johns Hopkins University Research Collaboration, Uganda Philippa Musoke --- Makerere University–Johns Hopkins University Research Collaboration, Uganda Lisa M. Butler --- Institute for Collaboration on Health, Intervention and Policy, ConnecticutThe World Health Organization (WHO) recommends that HIV-positive children are told their diagnosis by age 12 years. However, most perinatally-infected children reach adolescence without being told their HIV status. Effective strategies are needed to promote disclosure, and optimise children’s health... -
Mapping tree aboveground biomass and carbon in Omo Forest Reserve Nigeria using Landsat 8 OLI data
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Iveren B Chenge --- Department of Forest Resources Management, Nigeria Johnson SA Osho --- Department of Forest Resources Management, NigeriaProtected areas in Nigeria are important ecosystems for carbon storage. The aim of this study was to estimate and map tree aboveground biomass (TAGB) and carbon (TAGC) within a tropical forest in Nigeria. Stepwise regression analysis was implemented to develop... -
Yields of Green Grams and Pigeonpeas under Smallholder Conditions in Machakos County, Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: John Mulwa Wambua --- Department of Agricultural Economics and Agribusiness, Kenya Margaret Ngigi --- Department of Agricultural Economics and Agribusiness, Kenya Muhammad Lutta --- Kenya Agricultural and Livestock Research Organization, KenyaGreen grams and pigeonpeas have multiple benefits to the rural poor as food security, fodder for livestock and fuel for small-scale farmers, despite low smallholder yields in Kenya. However, little is known about the factors between different farmers that influence... -
Family planning desires of older adults (50 years and over) in Botswana
Item type: Journal Article • Journal: South African Family Practice • Authors: Njoku Ola Ama --- Department of Statistics, John O Olaomi --- Department of Statistics,Background: This study analysed the views of a stratified sample of 444 older adult women from selected health districts in Botswana on their family planning (FP) use, knowledge, accessibility and availability. -
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. LamontThis 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... -
Rhythm and connection on Rissik Street: Reflecting on public space research in inner-city Johannesburg
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Temba John Dawson Middelmann --- Town and Regional Planning, South AfricaThis paper explores how entangled layers of use and contingencies of open spaces in downtown Johannesburg, South Africa, relate to their structural, material and symbolic aspects. Reflecting on research at Pieter Roos Park, Constitution Hill and Gandhi Square, this paper... -
Disconnect between policy and practice in developing countries: Evidence of managing e-waste from Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Johnson Ojiyovwi Okorhi --- Institute of Engineering, Technology, and Innovation Management, Nigeria Joe E. Amadi-Echendu --- Institute of Engineering, Technology, and Innovation Management, Nigeria Helen Olubunmi Aderemi --- Department of Management and Accounting, Nigeria Roland Uhunmwangho --- Electrical/Engineering Department, Nigeria Anthony Chukwudi Okwubunne --- National Centre for Technology Management (NACETEM), NigeriaThere are insufficient management functions that begin with planning, institutional arrangements and technical handling of e-waste materials in Nigeria. Modern trends in recycling still fall short of global practices. This study examined Waste Electrical and Electronic Equipment (WEEE) management strategies... -
Assessment of Differences in Small Farmer Uses of Produce and Determinants of Marketed Surplus of Green Grams and Pigeon Peas in Semi-arid Machakos County, Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: John Mulwa Wambua --- Department of Agricultural Economics and agribusiness, Kenya Margaret Ngigi --- Department of Agricultural Economics and agribusiness, Kenya Lutta Muhammad --- Kenya Agricultural and Livestock Research Organization, KenyaSmall farmers in semi-arid areas of eastern Kenya produce green grams and pigeon peas for both subsistence and income. Because of this, it was important for a detailed investigation on the difficulty of raising marketed surplus (produce) of green grams... -
Functional Diversity and Performance of Direct Marketing Outlets for Smallholder Farmers of Green Gram and Pigeon Pea Commodities in Machakos County, Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: John Mulwa Wambua --- Department of Agricultural Economics and Agribusiness, Kenya Margaret Ngigi --- Department of Agricultural Economics and Agribusiness, Kenya Lutta Muhammad --- Kenya Agricultural and Livestock Research Organization, KenyaThe smallholder direct marketing outlets (private grain traders) serve the smallholder farmers poorly in the rural areas of Kenya, making local markets thin and less competitive. The purpose of this study is to evaluate the diversity and the determinant factors... -
A comparative analysis of risk measures: A portfolio optimisation approach
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Evan Gilbert --- University of Stellenbosch Business School, South Africa Luke Meiklejohn --- Department of Actuarial Science, South AfricaInvestment portfolios are typically created to minimise the level of risk for a required level of return. This paper highlights the importance of the choice of risk metric in this process. The theoretical nature of volatility as a risk measure... -
On the connectedness of the complement of the zero-divisor graph of a poset
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sarika Devhare --- Department of Mathematics, India Vinayak Joshi --- Department of Mathematics, India John LaGrange --- Division of Natural Science and Mathematics, USAIn this paper, connectedness is completely characterized for the complements of the zero-divisor graphs of partially ordered sets. These results are applied to annihilating ideal graphs and intersection graphs of submodules, generalizing some of the work that has recently appeared... -
The socioeconomic impact of rural-origin graduates working as healthcare professionals in South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: Richard Gavin McGregor --- Umthombo Youth Development Foundation, South Africa Andrew John Ross --- College of Health Sciences Discipline of Family Medicine, South Africa Ganzamungu Zihindula --- Umthombo Youth Development Foundation, South AfricaBackground: Studies documenting the socioeconomic impact of education leading to employment of rural youth, specifically in the healthcare professions, are lacking. The Umthombo Youth Development Foundation (UYDF) is an NGO that provides financial support for rural students to train as... -
An effective learning culture: Using high performance work systems to strengthen the relationship between communities of practice and knowledge creation in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Florence Nansubuga --- School of Psychology, Makerere University, Uganda John C Munene --- School of Psychology, Makerere University, Uganda Julius Kikooma --- School of Psychology, Makerere University, Uganda Joyce Nansamba --- School of Psychology, Makerere University, Uganda Khamis Musanje --- School of Psychology, Makerere University, UgandaThis paper sought to demonstrate how communities of practice can coalesce with high performance work systems to develop an Africanized learning culture that promotes interaction among employees and empowers them to create innovative knowledge for competitive performance. A total of... -
What is the future of foreign food experiences?
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Erwin Losekoot --- Stenden Hotel Management School, The Netherlands John Hornby --- Stenden Hotel Management School, The NetherlandsThis article considers the impact foreign food experiences can have on an individual. Food can be transported across the globe and be a catalyst for understanding and integration, but it can also be used to emphasise the “otherness” that sets... -
Obligations of motherhood in shaping sex work, condom use, and HIV care among Swazi female sex workers living with HIV
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lauren Parmley --- Department of International Health, Johns Hopkins Bloomberg School of Public Health, USA Rebecca Fielding-Miller --- Center on Gender Equity and Health, Division of Global Public Health, USA Zandile Mnisi --- Health Research Department, Strategic Information Division, Ministry of Health eSwatini, eSwatini Caitlin E Kennedy --- Department of International Health, Johns Hopkins Bloomberg School of Public Health, USAParental obligations influence sexual behaviour among female sex workers (FSW) and may serve as a risk or protective factor for HIV acquisition. How these obligations affect behaviours beyond HIV prevention, including HIV care, is understudied. We analysed 25 interviews conducted... -
Rotational grazing approaches reduces external and internal parasite loads in cattle
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Monde Rapiya --- Department of Livestock and Pasture Science, South Africa Heidi-Jayne Hawkins --- Department Biological Sciences, South Africa Voster Muchenje --- Department of Livestock and Pasture Science, South Africa John F Mupangwa --- Department of Animal Sciences, Namibia Munyaradzi C Marufu --- Department of Production Animal Studies, South Africa Kennedy Dzama --- Department of Animal Sciences, South Africa Cletos Mapiye --- Department of Animal Sciences, South AfricaWe tested whether holistic planned grazing (HPG) and four-camp grazing (FCG) rotational grazing approaches influence beef cattle parasites counts compared with continuous, season-long (SLG) grazing. We expected that parasite counts would increase linearly with increasing camp occupancy by cattle from... -
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 StatesThe 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... -
A review of the use of birds’ nests by Egyptian geese, including a breeding attempt in a hooded vulture nest
Item type: Journal Article • Journal: African Zoology • Authors: Lindy J Thompson --- Centre for Functional Biodiversity, School of Life Sciences, South Africa Carrie J Hickman --- School of Environment, Earth and Ecosystem Sciences, United Kingdom John P Davies --- Birds of Prey Programme, Endangered Wildlife Trust, South Africa Fiona Fern --- Independent researcher, United Kingdom Colleen T Downs --- Centre for Functional Biodiversity, School of Life Sciences, South AfricaEgyptian geese Alopochen aegyptiaca are widely reported to be territorial and aggressive. They are known to attack and sometimes kill other birds and they may attempt to usurp their nests. Here information is collated on the bird species whose nests... -
Ingoma and St Matthew’s Tune Book: two South African missionary tonic sol-fa hymn-tune collections
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Andrew-John Bethke --- School of Arts, University of KwaZulu-Natal, South AfricaChristopher Birkett’s Ingoma (1871) and Cyrill Wyche’s St Matthew’s Tune Book (1902), both collections of hymn tunes assembled in South Africa, have proven influential in contemporary Xhosa Anglican hymnody. This article provides the first detailed commentary on the contents of... -
Game domination numbers of a disjoint union of paths and cycles
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Watcharintorn Ruksasakchai --- , Thailand Kritkhajohn Onphaeng --- , Thailand Chalermpong Worawannotai --- , ThailandThe domination game is played on a graph G by two players, Dominator and Staller, who alternately chooses a vertex of G in such a way that at least one new vertex is dominated. The game ends when all vertices... -
The inner site-perimeter of compositions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Aubrey Blecher --- The John Knopfmacher Centre for Applicable Analysis and Number Theory, School of Mathematics, South Africa Charlotte Brennan --- The John Knopfmacher Centre for Applicable Analysis and Number Theory, School of Mathematics, South Africa Arnold Knopfmacher --- The John Knopfmacher Centre for Applicable Analysis and Number Theory, School of Mathematics, South AfricaCompositions of n are finite sequences of positive integers Such that -
The relationship between female adiposity and physical attractiveness amongst adults in rural Ranaka village, Botswana
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: H Salome Kruger --- Centre of Excellence for Nutrition, South Africa Tumelo Seru --- Centre of Excellence for Nutrition, South Africa Zandile J Mchiza --- School of Public Health, University of the Western Cape, South Africa John R Speakman --- Institute of Biological and Environmental Sciences, UKObjective: The aim was to assess the relationship between female adiposity and physical attractiveness among men and women in Botswana. -
Name as a designate of culture in traditional and contemporary Yorùbá society of Nigeria
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: John Olubunmi Faloju --- Department of European Languages, Nigeria Opeyemi Yusuf Fadairo --- Department of Linguistics, African and Asian Studies, NigeriaNames are cultural indicators used to identify or designate a person or an object. There is an abundance of literature on the naming culture of the Yorùbá society. However, to the best of our knowledge, none of these works have... -
The charismatic praying mantid: A gateway for insect conservation
Item type: Journal Article • Journal: African Zoology • Authors: Bianca Greyvenstein --- Unit for Environmental Sciences and Management, South Africa Hannalene du Plessis --- Unit for Environmental Sciences and Management, South Africa Johnnie van den Berg --- Unit for Environmental Sciences and Management, South AfricaPraying mantids (Mantodea) are not only apex predators with a ‘mystical’ status, but are also regarded as a kind of oracle and, in some cultures, as omens associated with good or bad. In the future, the cultural, mystical and religious... -
‘Living shores: interacting with southern Africa’s marine ecosystems’ by George Branch and Margo Branch
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: John Hanks --- Formerly CEO at WWF South Africa, and CEO at Peace Parks Foundation, -
Value co-creation effects on transaction cost, relational capital, and loyalty of hair salon customers: Results and implications of a Ghanaian study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Wen Xiao --- , China Christian Narh Opata --- , China Stephen Tetteh --- , China Tettey-Wayo John Narh --- , Ghana Robert E. Hinson --- , GhanaThis study aimed to examine customer relational capital, transaction cost, and loyalty with value co-creation in the Ghanaian hair-dressing business sector. Participants were 455 female hair-dressing customers (mean age = 2.56 years, SD = 1.07 years, age range 22 to... -
Ethnic and racial valorisations in Nigeria and South Africa: How ubuntu may harm or help
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Minka Woermann --- , South Africa John S. Sanni --- , South AfricaDiversity is a fact of the social world; however, it can also be a problem if it leads to the valorisation of ethnic or racial identities. The social structures that inform the problems that arise from differences are based on... -
Expansion of HIV testing in Eswatini: stakeholder perspectives on reaching the first 90
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Philip J Kitchen --- , Germany Kate Bärnighausen --- , Germany Lenhle Dube --- , Eswatini Zandi Mnisi --- , Eswatini Sithembile Dlamini-Nqeketo --- , Eswatini Cheryl C Johnson --- , Switzerland Till Bärnighausen --- , Germany Jan Walter De Neve --- , Germany Shannon A McMahon --- , GermanyAchieving the United Nations’ 90-90-90 goals has proven challenging in most settings and the ambitious 95-95-95 goals seem even more elusive. However, in Eswatini – a lower-middle-income country in sub-Saharan Africa with the highest HIV prevalence in the world –... -
Distribution and abundance of African elephants in Ngorongoro Crater, northern Tanzania
Item type: Journal Article • Journal: African Zoology • Authors: John Kioko --- , Tanzania Alanna Horton --- , United States Margo Libre --- , United States Jennifer Vickers --- , United States Emma Dressel --- , United States Heather Kasey --- , United States Pastory M Ndegeya --- , Tanzania Donatus Gadiye --- , Tanzania Bernard Kissui --- , Tanzania Christian Kiffner --- , TanzaniaWe studied the distribution and abundance of African elephants in Ngorongoro Crater (NC), northern Tanzania to test whether male and female elephants select different habitats and to assess whether elephant abundance was related to monthly precipitation. From 2016 to 2017,... -
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 --- , GhanaAim: 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... -
Obituary: Boet Kotzé, a radical and prophetic Afrikaans anthropologist (March 4, 1943–July 8, 2020)
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: C.S. (Kees) van der Waal --- , South Africa John Sharp --- , South Africa -
Effects of voiced consonants and speaker gender on the acoustic characteristics of preceding vowels in Ika
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Joy O Uguru --- , Nigeria John Beerends --- , The NetherlandsThis article examines if the voicing of a consonant in Ika has any influence on the acoustic features of a preceding vowel. Ika (ISO 639-3 ikk) has nine vowels and this work centres on them. Nine pairs of words beginning... -
Women’s perspectives on relationship dynamics with their partners and their role in HIV acquisition, HIV disclosure, hormonal contraceptive uptake, and condom use
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: John C Chapola --- , Malawi Kendra Hatfield-Timajchy --- , USA Agatha K Bula --- , Malawi Stacey Hurst --- , USA Lameck Chinula --- , Malawi Athena P Kourtis --- , USA Jennifer H Tang --- , MalawiBackground: Limited information exists about relationship dynamics and their role in HIV acquisition, HIV disclosure, hormonal contraceptive uptake, and condom use among women in Malawi. -
‘I just want to live’: A case study exploring separation abuse among women in heterosexual relationships
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Samantha-Sue Johnson --- , South Africa Duane D. Booysen --- , South AfricaIntimate partner violence is a public health and human rights concern. We aimed to explore the lived experiences of women survivors of separation abuse. Our informants were four South African women who experienced separation abuse by a partner. The women... -
Double-brooding in Southern Yellow-billed Hornbills Tockus leucomelas
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Mark Stanback --- , United States David Millican --- , United States William Versfeld --- , Namibia Matti Nghikembua --- , Namibia Laurie Marker --- , Namibia John Mendelsohn --- , NamibiaDouble-brooding is an avian breeding strategy where birds produce at least two successful nests in a single season. Double-brooding is seen most frequently in small passerines for which the breeding season is lengthy enough that they can easily fit in... -
Moral risks and government policy in South Africa in the context of 4IR
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Ostrowick [cor1]South Africa, among other nations in Africa, most notably Kenya, Nigeria and Rwanda, is aiming to take a lead in the implementation of policy intended to address the challenges represented by the fourth Industrial Revolution. We take the South African... -
Magnitude, patterns and composition of wildlife roadkill in the Serengeti ecosystem, northern Tanzania
Item type: Journal Article • Journal: African Zoology • Authors: Richard D Lyamuya --- , Tanzania Kwaslema M Hariohay --- , Tanzania Emmanuel H Masenga --- , Tanzania John K Bukombe --- , Tanzania Grayson G Mwakalebe --- , Tanzania Maulid L Mdaki --- , Tanzania Ally K Nkwabi --- , Tanzania Robert D Fyumagwa --- , Tanzania Eivin Røskaft --- , NorwayGlobally, traffic associated with roads that pass through protected areas are the cause of many negative impacts on wildlife, such as wildlife roadkill, which has occurred within the Serengeti ecosystem. A 200 km stretch of gravel road networks that passes... -
A critical review of macroinvertebrate-based bioassessment approaches in Africa’s lotic systems: developments, challenges, and legal requirements
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: John Peter Obubu --- , Ethiopia Seyoum Mengistou --- , Ethiopia Tadesse Fetahi --- , Ethiopia Wolfram Graf --- , Austria Robinson Odong --- , UgandaWorldwide, water resources have an impact on all forms of life as lotic systems are networks that interconnect water resources and land. They are important for navigation, water supplies, agriculture, recreation, and industrial development and help to regulate changes in... -
‘Time is Money’: Dar es Salaam’s Daladala Inscriptions and the Ethics of Everyday
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: John Wakota --- , TanzaniaIn Dar es Salaam, privately-owned minibuses, known as daladalas, are the most popular means of commuting. Their routes crisscross the city and the minibuses themselves are adorned with messages and inscriptions on their rear bumpers. These inscriptions comment on aspects... -
Comparison of seed germination and vigour in low and high phytic acid maize synthetic populations and commercially available hybrids
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Mohammed A Elgorashi Bakhite --- , South Africa Nkanyiso J Sithole --- , South Africa Lembe S Magwaza --- , South Africa Alfred O Odindo --- , South Africa John Derera --- , South AfricaPlant breeders have focused on reducing phytic acid in maize seeds to improve grain nutritional quality. However, this could have negative effects on seed quality. The objective of this study was to compare seed performance of low and high phytic... -
African phenomenology and ontological absolutism in politics: The complex postcolonial situation of Cameroon
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: John Sodiq Sanni --- , South AfricaIn an attempt to formulate an African phenomenological method, this article engages with existing African philosophical schools, namely particularism, universalism and eclecticism. I will explore how the positions advanced in these schools, valid in their own rights, are at the... -
Sounding the woods: the significance of gyil music in Dagara funeral ceremonies
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: John Wesley Dankwa --- , United States of AmericaThis article examines the musical meaning and role that the gyil (a pentatonic xylophone) plays during Dagara funeral ceremonies in north-west Ghana. It is based on several months of ethnographic fieldwork in the Nandom traditional area in Ghana’s upper western... -
Teaching and learning strategies used by basic school band instructors in Accra, Ghana
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: John-Doe Dordzro --- , GhanaGhanaian scholarship in the field of instrumental music pedagogy is minimal. This article aims to examine the teaching and learning strategies demonstrated by basic school band instructors in the Accra metropolis of Ghana. Ten basic school bands and five school... -
Recasting the ontological foundation of ubuntu: Addressing the problem of gender-based violence in South Africa
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Sodiq Sanni --- , South Africa Diana Ekor Ofana --- , South AfricaThis article addresses the persistent reality of gender-based violence in South Africa. It does this by approaching the issue of gender from the African philosophical position of ubuntu. The concept of ubuntu is one that is readily used by most... -
Mountain refugia limit anthropogenic suppression in a re-established felid population: the case of the Magaliesberg leopard population in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: R John Power --- , South Africa Matt S Rogan --- , South Africa Vincent N Naude --- , South AfricaAlthough highly adaptable, leopards incur substantial mortality in human-modified landscapes and generally subsist at lower densities than in protected areas. Leopard populations are difficult to enumerate across any landscapes, though there have been strides to improve upon this, particularly in... -
Influence of phosphorus fertiliser blends on grain yield, nutrient concentration, and profitability of soyabeans in the southern Guinea Savannah of Ghana
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Samuel Adjei-Nsiah --- , Ghana John K Ahiakpa --- , Ghana Kwesi Gyan --- , Ghana Fred Kanampiu --- , KenyaWe conducted on-farm trials in the southern Guinea savannah of Ghana in 2016 and 2017 to evaluate soyabean response to three fertiliser blends to guide farmers towards profitable adoption of appropriate phosphorus fertiliser blend for improved soyabean production. Old Yara... -
Parenting style, social interaction anxiety, and problematic internet use among students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Blessing Nneka Onyekachi --- , Nigeria Francisca Oluchukwu Egboluche --- , Nigeria JohnBosco Chika Chukwuorji --- , NigeriaOur study examined the roles of parenting styles and social interaction anxiety in problematic internet use (PIU) in a sample of Nigerian undergraduate students (n = 300; female = 63.3%; mean age = 19.66 years, SD = 2.64 years). The... -
Structural assemblages of plant species in the Owabi Ramsar Wetland in the Ashanti Region of Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Collins A Nsor --- , Ghana Rockson Acolatse --- , Ghana John N Mensah --- , Ghana Samuel K Oppong --- , Ghana Daniel Dompreh --- , Ghana Louis Addai-Wireko --- , GhanaAnthropogenic activities as predictors of species assemblages in the Owabi Ramsar Wetland were investigated between May and September 2019. Data were collected in 154 plots at five different sites. The prevalence index method was used to categorise the species into... -
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 AfricaWe 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... -
Contribution of temperate germplasm to the performance of maize hybrids under stress and non-stress environments in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sphiwokuhle Shandu --- , South Africa Edmore Gasura --- , Zimbabwe Kingstone Mashingaidze --- , South Africa John Derera --- , South AfricaIncreases in genetic gains are crucial to maize breeding programmes. The objectives of this study were to identify higher-yielding and stable maize hybrids across stress and non-stress environments, to identify representative test environments for testing and selection of superior maize... -
Moderate communitarianism and the prospect of an African political philosophy of needs
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Sodiq Sanni --- , South AfricaThe social, cultural and economic history of Africa informs the various political narratives on the continent. Among these narratives birthing various intellectual discourses are the questions of personhood and communitarianism, socialism, independence, decolonisation and ubuntu. Implicit in these discourses, yet... -
Introduction: Themes and discourses in African philosophy
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: John Sodiq Sanni --- , South Africa Mary Carman --- , South Africa Edwin Etieyibo --- , South AfricaMore recent discussions in African philosophy have focused on substantive issues than the largely meta-philosophical discussions that African philosophers engaged in between the 1960s and 1990s. This makes this special issue very important. Collectively the articles in the issue, among... -
Is vitamin D status associated with non-communicable disease risk in children? A cohort study
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Machuene A Poopedi --- , South Africa; Shane A Norris --- , South Africa; John M Pettifor --- , South Africa; -
Forage legumes from the Mediterranean Fynbos biome of South Africa with potential for domestication: slope aspect affects tissue fibre and mineral composition
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Samson BM Chimphango --- , South Africa Luke H Gallant --- , South Africa M Igshaan Samuels --- , South Africa Odette E Curtis-Scott --- , South Africa A Muthama Muasya --- , South Africa Clement Cupido --- , South Africa James S Boatwright --- , South Africa John Howieson --- , AustraliaFabaceae plants contribute greatly to a high quality of pasture in rangelands, because of high levels of protein in their tissues. Despite this established importance, only a few southern African legumes have been evaluated for nutritional value and domestication. The... -
Long-term reference evapotranspiration trend and causative factors analysis in the sugarbelt area of the midlands of KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Zoleka Ncoyini-Manciya --- , South Africa Michael John Savage --- , South Africa Sheldon Strydom --- , South Africa Alistair David Clulow --- , South AfricaGlobal warming is widely recognised, and its effects are becoming apparent throughout the world. Evaporation and evapotranspiration, the key components of the hydrological cycle, are generally expected to increase due to the rise in air and surface temperatures. However, previous... -
Thirty years of amphibian surveys in the Ukagurus Mountains of Tanzania reveal new species, yet others are in decline
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: H Christoph Liedtke --- Estación Biológica de Doñana (CSIC), Spain John V Lyakurwa --- University of Dar es Salaam, Tanzania Lucinda P Lawson --- University of Cincinnati, USA Michele Menegon --- Manchester Metropolitan University, UK Marina Garrido-Priego --- Estación Biológica de Doñana (CSIC), Spain Jean Mariaux --- Natural History Museum of Geneva, Switzerland Wilirk Ngalason --- University of Dar es Salaam, Tanzania Alan Channing --- North-West University, South Africa Nisha R Owen --- On the EDGE Conservation, UK Gabriela B Bittencourt-Silva --- Estación Biológica de Doñana (CSIC), Spain Mark Wilkinson --- Natural History Museum, UK Joanna G Larson --- University of Notre Dame, USA Václav Gvoždík --- Institute of Vertebrate Biology of the Czech Academy of Sciences, Czech Republic Simon P Loader --- Natural History Museum, UKRecords of biodiversity over time are important resources for assessing conservation priorities. However, such baseline data are missing for regions of key biodiversity importance. The Eastern Arc Mountains of Tanzania are known for their species richness and endemism, but not... -
Names of Contemporary Wooden Boats of Coastal East Africa: Origins and Meanings
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Elgidius B. Ichumbaki --- , Tanzania Gastor Mapunda --- , Tanzania John P. Cooper --- , United Kingdom Sinyati R. Mark --- , Tanzania Elinaza A. Mjema --- , Tanzania Lucy Blue --- , Thomas J. Biginagwa --- , TanzaniaThe coast of eastern Africa, commonly referred to as the Swahili coast, has a rich artisanal heritage of boats — both in their building and use. This iconic history is marked by the presence of various boat types that have... -
Analysts’ stock ratings and the predictive value of news and Twitter sentiment
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: John Garcia --- , USAThis study investigates the relationship between the stock ratings of professional analysts and company-level sentiment. I find that investor sentiment expressed in tweets and news articles displays a positive relationship with professional analysts’ stock ratings and that the sentiment conveyed... -
Disrupted dining: decline of the premium food services segment in India due to the COVID-19 pandemic
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Kishore Thomas John --- Indian Institute of Technology, India Rejikumar Gopalakrishnan --- , IndiaThis review article analyses the premium “fine dining” segment of the Indian food services sector, examining trends during the COVID-19 pandemic. Specifically, we discuss the challenges encountered and initiatives taken in response to the global coronavirus outbreak. Using secondary data... -
The extent of hybridisation between largemouth bass and Florida bass across two river systems in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Dumisani Khosa --- , South Africa John S Hargrove --- , South Africa Eric Peatman --- , United States Olaf LF Weyl --- , South AfricaNative to North America, largemouth bass Micropterus salmoides (Lacepède, 1802) were introduced in South Africa in 1928. Florida bass Micropterus floridanus (Lesueur, 1822) were introduced to enhance existing largemouth bass fisheries in 1980. While largemouth bass and Florida bass readily... -
Only in Africa: The Ecology of Human Evolution
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: John Compton --- , South Africa -
Closed-form solutions via the invariant approach for one-factor commodity models
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A.G. Johnpillai --- Eastern University, Sri Lanka F.M. Mahomed --- University of the Witwatersrand, South AfricaWe utilise the invariant method for scalar linear (1+1) parabolic partial differential equations so as to effect reductions via invertible transformations to Lie canonical forms of the first and third types. This is performed for the one-factor commodity models that... -
A look at the structure of congruence frames by means of Heyting congruences
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: John Frith --- University of Cape Town, South Africa Anneliese Schauerte --- University of Cape Town, South AfricaThis paper concerns the congruence frame in the setting of partial frames, which, in contrast to full frames, do not necessarily have all joins. Examples of these include bounded distributive lattices, σ- and κ-frames. A new class of congruences, called... -
Understanding the role of men in women's use of the vaginal ring and oral PrEP during pregnancy and breastfeeding: multi-stakeholder perspectives
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Petina Musara --- University of Zimbabwe, Zimbabwe Miriam Hartmann --- , USA Julia H Ryan --- , USA Krishnaveni Reddy --- Wits Reproductive Health and HIV Institute, University of the Witwatersrand, South Africa Joseph Ggita --- Johns Hopkins University Research Collaboration, Makerere University, Uganda Prisca Mutero --- University of Zimbabwe, Zimbabwe Nicole Macagna --- , USA Frank Taulo --- University of Malawi, Malawi Nyaradzo M Mgodi --- University of Zimbabwe, Zimbabwe Jeanna Piper --- , USA Ariane van der Straten --- University of California San Francisco, USAWe examined men’s influence on women’s interest in biomedical HIV prevention during pregnancy and breastfeeding through structured questionnaires and focus group discussions with currently or recently pregnant and breastfeeding (P/BF) women (n = 65), men with P/BF partners (n =... -
Psychosocial coping mechanisms among uncircumcised Pokot women in North-Eastern Uganda
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Noah Kalengo --- Makerere University, Uganda Alone Isabirye --- Kyambogo University, Uganda John Bukusuba --- Makerere University, Uganda Laban K Musinguzi --- Makerere University, Uganda Janestic Mwende Twikirize --- Makerere University, UgandaUncircumcised women continue to be stigmatised with their rights and social status contested in communities where the practice is cherished. This study explored the circumcision refusal coping skills of women from the Pokot community, North-Eastern Uganda. Informants were 25 uncircumcised... -
Food insecurity, HIV/AIDS pandemic and sexual behaviour of female commercial sex workers in Lagos metropolis, Nigeria
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: John Lekan Oyefara --- Obafemi Awolowo University, NigeriaThis study examined the role of hunger and food insecurity in the sexual behaviour of female commercial sex workers in Lagos metropolis, Nigeria within the context of HIV/AIDS. In addition, the study investigated the prevalence of sexually transmitted infections (STIs)... -
Using VCT statistics from Kenya in understanding the association between gender and HIV
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kennedy Otwombe --- University of the Witwatersrand, Ndindi Mutisya --- Policy and Performance Department, Liverpool VCT, Care & Treatment (LVCT), Kenya Carolyne Ajema --- Liverpool VCT, Care & Treatment (LVCT), Kenya John Wanyungu --- National HIV/AIDS and STI Control Program, Ministry of Health, KenyaThis paper demonstrates the importance of utilising official statistics from the voluntary counselling and testing centres (VCT) to determine the association between gender and HIV infection rates in Kenya. The study design adopted was a record based survey of data... -
Book Reviews
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: John Seager --- Social Aspects of HIV/AIDS and Health, Human Sciences Research Council, South AfricaLiving with AIDS in Uganda: Impacts on Banana-Farming Households in Two Districts By Monica Karuhanga Beraho, African women leaders in agriculture and the environment (AWLAE) Series No. 6, Wageningen: Wageningen Academic Publishers. 2008. 371pp. ISBN 978-90-8686-064-7 Reviewed by John Seager. -
‘Triangulating’ AMPATH: Demonstration of a multi-perspective strategic programme evaluation method
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Thomas S Inui --- Regenstrief Institute, Inc., John E Sidle Winstone M Nyandiko Violet N Yebei Richard M Frankel David L Mossbarger David Ayuku Joyce Ballidawa Rose AyikukweiClinical programmes are typically evaluated on operational performance metrics of cost, quality and outcomes. Measures of patient satisfaction are used to assess the experience of receiving care, but other perspectives, including those of staff and communities, are not often sought... -
Barriers and facilitators to antiretroviral medication adherence among HIV-infected paediatric patients in Ethiopia: A qualitative study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Sibhatu Biadgilign --- John Hopkins University's Technical Support for the Ethiopian HIV/AIDS ART Initiative, Amare Deribew --- Department of Epidemiology, Jimma University, Alemayehu Amberbir --- Division of Epidemiology and Public Health, University of Nottingham, Kebede Deribe --- FIDA, EthiopiaMedication adherence is a complex behaviour with multiple determinants. Understanding the barriers and facilitators of adherence is invaluable for programme improvement, which assists the foundation of adherence intervention strategies. A qualitative study was conducted in six selected hospitals of Addis... -
Gender differences regarding barriers and motivators of HIV status disclosure among HIV-positive service users
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kebede Deribe --- , Ethiopia Kifle Woldemichael --- Department of Epidemiology, Jimma University, Bernard Joseph Njau --- Department of Community Health, Kilimanjaro Christian Medical College, Bereket Yakob --- NASTAD Global Programme, Ethiopia Sibhatu Biadgilign --- John Hopkins University-Technical Support for the Ethiopian HIV/AIDS ART Initiative, Alemayehu Amberbir --- Division of Epidemiology and Public Health, University of Nottingham,There are inconsistent findings about the relation between gender and HIV status disclosure. We conducted a facility-based cross-sectional study, using qualitative and quantitative data collection methods, to explore gender differences in HIV-positive status disclosure among service users in south-west Ethiopia... -
HIV protective strategies among college students in Durban, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Pranitha Maharaj --- School of Development Studies, University of KwaZulu-Natal, John Cleland --- London School of Hygiene and Tropical Medicine,There is growing concern about the high level of HIV infection among young people in South Africa. The aim of the study is to examine the HIV protective strategies used by college students with specific emphasis on variations by race... -
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... -
Demand for programs for key populations in Africa from countries receiving international donor assistance
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Owen Ryan [d181e18] John Macom Michelle Moses-EisensteinThere has been increasing attention in recent years to the HIV prevention, treatment, and care needs of key populations in Africa, in particular men who have sex with men (MSM), injection drug users (IDU), and female sex workers (FSW). While... -
Disclosure of HIV status between parents and children in Uganda in the context of greater access to treatment
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: David Kyaddondo [d332e18] Rhoda K. Wanyenze John Kinsman Anita HardonWhile disclosure of HIV sero-status is encouraged in the management of the HIV and AIDS epidemic, it remains a challenge, especially among family members. This article examines the moral dilemmas and pragmatic incentives surrounding disclosure of HIV status in contemporary... -
Rwandan young people's perceptions on sexuality and relationships: Results from a qualitative study using the ‘mailbox technique’
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Kristien Michielsen --- , , Belgium Pieter Remes --- , Burkina Faso John Rugabo --- , Rwanda Ronan Van Rossem --- , , Belgium Marleen Temmerman --- , BelgiumThis study aimed to gain more insight into young Rwandans’ perceptions on sex and relationships, which is essential for formulating effective sexual and reproductive health (SRH) promotion interventions. Using a ‘mailbox technique’, this paper studies the spontaneous thoughts of Rwandan... -
Early infant male circumcision for human immunodeficiency virus prevention: knowledge and attitudes of women attending a rural hospital in Swaziland, Southern Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Prudence Jarrett --- , , UK Merav Kliner --- , , UK John Walley --- , , UKSwaziland has the highest prevalence of human immunodeficiency virus (HIV) in the world at 26% of the adult population. Medical male circumcision (MMC) has been shown to reduce the risk of acquiring HIV from heterosexual sex by up to 60%... -
Third-world realities in a first-world setting: A study of the HIV/AIDS-related conditions and risk behaviors of sex trade workers in Saskatoon, Saskatchewan, Canada
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Yelena Bird --- at the , Canada Mark Lemstra --- at the , Canada Marla Rogers --- at the , Canada John Moraros --- at the , CanadaThe transmission and prevalence of Human Immunodeficiency Virus (HIV) among those employed as sex trade workers (STW) is a major public health concern. The present study describes the self-reported responses of 340 STW, at-risk for contracting HIV. The participants were... -
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 --- , , BelgiumAs 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... -
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... -
A SUCCESSFUL HATCHING OF
CROTAPHOPELTIS HOTAMBOEIA EGGSItem type: Journal Article • Journal: Journal of the Herpetological Association of Rhodesia • Authors: John Boughey -
ANOTHER SUCCESSFUL HATCHING OF SNAKE EGGS
Item type: Journal Article • Journal: Journal of the Herpetological Association of Rhodesia • Authors: A. John Boughey -
COLLECTING IN LITTLE NAMAQUALAND, NORTH-WESTERN AND CENTRAL CAPE PROVINCE, AUGUST 23–30, 1966
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: John Visser C. R.S. Pitman -
NOTES ON CAPTIVE EGG)EATEES (
DASYPELTIS SCABRA )Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER -
UNUSUALLY LARGE SKAAPSTEKER EGGS FROM THE CAPE PENINSULA
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER -
CORDYLUS CORDYLUS AND ITS RACES IN THE CAPE PROVINCE—A GENERAL DISCUSSIONItem type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER -
ATRACTASPIS —HOW DOES IT BITE?Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER --- , South Africa -
SNAKES OF RHODESIA
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: John Visser --- , -
NOTES ON A GABOON ADDER BITE
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER GARTH CARPENTER -
COMMON NAMES FOR COMMON PEOPLE!
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER --- , -
NOTES ON TWO RARE HOUSE SNAKES—1
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER --- , -
IS THE MALE THE STICKY PARTNER DURING BREVICEPS MATING?Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER --- , -
COMMENT
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER --- , -
THE DISTRIBUTION OF
CORDYLUS MACHOPHOLIS Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER --- , -
CALLING AND SPAWNING DATES OF THE SOUTH-WESTERN CAPE FROGS
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER --- , South Africa -
NOTES ON TWO RARE HOUSE SNAKES—PART 2 THE GENERIC STATUS OF
LAMPROPHIS FISKII BOULENGER (1887) ANDLAMPROPHIS SWAZICUS SCHAEFER (1970)Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER -
NEW AND RECONFIRMED RECORDS FOR THE CAPE PROVINCE WITH NOTES ON SOME “RARE” SPECIES (SAURIA, SERPENTES AND ANURA)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER --- , -
ADDITIONAL RECORDS AND CORRECTIONS FOR THE CAPE PROVINCE
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER --- , RSA -
TOOTH COUNTS FOR DASYPELTIS (SERPENTES: DASYPELTINAE)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER --- , South Africa -
A NUMERICAL SYNOPSIS OF THE AFRICAN HOLDINGS OF THE DEPARTMENT OF HERPETOLOGY, CALIFORNIA ACADEMY OF SCIENCES
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: ROBERTC. DREWES --- California Academy of Sciences, JOHNE. SIMMONS --- California Academy of Sciences, ALANE. LEVITON --- California Academy of Sciences, -
THE HERPETOFAUNA OF SUGARCANE FIELDS AND THEIR ENVIRONS ON THE NORTH COAST OF NATAL
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: P.A. JOHNSON --- Institute of Natural Resources University of Natal, L. R. G. RAW --- Institute of Natural Resources University of Natal,A survey of the herpetofauna of the Natal North Coast between the Tugela River and Sheffield Beach was conducted by means of trapping and active field collecting. Most work was undertaken in areas of sugarcane cultivation, where the fauna was... -
THE SIGNIFICANCE OF MULTI-NOTE ADVERTISEMENT CALLS IN A REED FROG, HYPEROLIUS TUBERILINGUIS
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHNR. PALLETT --- University of the Witwatersrand, South Africa NEVILLEI. PASSMORE --- University of the Witwatersrand, South Africa -
SPERMATOZOA OF SOME AFRICAN AMPHIBIANS
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: G. VAN DER HORST --- University of the Western Cape, JOHN VISSER --- University of the Western Cape, -
INTERSPECIFIC DIFFERENCES IN SPERM MORPHOLOGY IN HELEOPHRYNE
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JOHN VISSER --- , -
On Bufo pantherinus A. Smith, 1828 (Anura: Bufonidae), the leopard toad of the southwestern Cape, South Africa, with the designation of a neotype
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: JohnC. Poynton --- , UK Angelo J.L. Lambiris --- University of Durban-Westville, South AfricaThe leopard toad of the southwestern tip of Africa has appeared under the names Bufo pantherinus, Bufo cruciger, Bufo regularis and Bufo pardalis. This paper examines the nomenclatural confusion and proposes a neotype of B. pantherinus A. Smith, 1828, to... -
A critically endangered new species of Nectophrynoides (Anura: Bufonidae) from the Kihansi Gorge, Udzungwa Mountains, Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: JohnC. Poynton --- , England KimM. Howell --- University of Dar es Salaam, Tanzania BarryT. Clarke --- , England JonC. Lovett --- University of York, EnglandA new species of the Tanzanian ovoviviparous dwarf toad Nectophrynoides is described from the Kihansi River Gorge in the Udzungwa Mountains, and a key to the genus provided. The new species, currently known only from small patches of spray-dependent wetland... -
Two new species of Stephopaedes (Anura: Bufonidae) from Tanzania, with a review of the genus
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: JohnC. Poynton --- , U.K. BarryT. Clarke --- , U.K.Two new species of Stephopaedes are described from Mafia Island and the Usambara foothills, castern Tanzania. The four species now recognized in this eastern African forest-associated genus are diagnosed and discussed. Osteological details are included. As with other small-sized African... -
How to make measurements in thermoregulatory studies: the heating debate continues
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Shelley Currin --- University of the Witwatersrand, South Africa Graham John Alexander --- University of the Witwatersrand, South Africa -
A respone to Hertz, Huey and Stevenson
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Graham John Alexander --- University of the Witwatersrand, South Africa Shelley Currin --- University of the Witwatersrand, South Africa -
Evidence for an Afrotemperate amphibian fauna
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: JohnC. Poynton --- , UKLatitudinal and altitudinal changes in composition of the African amphibian fauna is analysed to test the standard zoogeographical division of the continent into Palaearctic and Afrotropical Regions. A comparably high faunal change north and south of the. tropical savannas suggests... -
Foam‐nest treefrogs in eastern Africa (Anura Rhacophoridae Chiromantis): Taxonomic complexities
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JohnC. Poynton --- Natural History Museum, UKParker's (1932) relegation of Chiromantis kelleri to subspecific status as C. petersii kelleri is investigated. Examination of the holotypes of C. petersii and C. kelleri shows subspecific status for these taxa to be inappropriate. Available data leave an open question... -
Arthroleptis troglodytes and the content of schoutedenella (Amphibia: Anura: Arthroleptidae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JohnC. Poynton --- Natural History Museum, UKLaurent (1954) transferred a large number of species then in Arthroleptis to the genus Schoutedenella, which up to that time was a monotypic genus distinguished by de Witte (1921) from Arthroleptis on the grounds of lacking maxillary teeth. Laurent's concept... -
A new giant species of Arthroleptis (Amphibia: Anura) from the Rubeho Mountains, Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: JohnC. Poynton --- The Natural History Museum, UKTwo giant specimens of Arthroleptis attaining a snout‐vent length of 57 mm, from the Rubeho Mountains in southern Tanzania are described as a new species. They are distinguished from the giant species A. tanneri of the West Usambara Mountains by... -
Stream frogs in Tanzania (Ranidae: Strongylopus): The case of S. Merumontanus and S. Fuelleborni
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JohnC. Poynton --- The Natural History Museum, UKExamination of the holotype of Strongylopus merumontanus (Lönnberg) points to Barbour & Loveridge (1928) being unjustified in referring Stream Frogs from northeastern Tanzania to this species. Their material is here assigned to the widespread S. fuelleborni, a species shown to... -
A new species of stream frog, genus Strongylopus (Anura: Ranidae) from Mount Kilimanjaro, Tanzania, with comments on a ‘northern volcanic mountains group’ within the genus
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: BarryT. Clarke --- The Natural History Museum, England JohnC. Poynton --- The Natural History Museum, EnglandA new species of Stream frog, genus Strongylopus, is described. The new species is similar to its northern Tanzanian congener S. kitumbeine, but may be distinguished from that species by its facial markings, smaller tympanum, minor differences in head and... -
Population structure of the African Clawed Frog (Xenopus laevis) in maize‐growing areas with atrazine application versus non‐maize‐growing areas in South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: LouisH. Du Preez --- North‐West University, South Africa KeithR. Solomon --- University of Guelph, Canada JimA. Carr --- Texas Tech University, JohnP. Giesy --- Michigan State University, USA TimothyS. Gross --- Florida Caribbean Science Center‐USGS‐BRD, USA RonaldJ. Kendall --- Texas Tech University, USA ErnestE. Smith --- Texas Tech University, USA GlenL. Van der Kraak --- University of Guelph, Canada Ché Weldon --- North‐West University, South AfricaThe herbicide atrazine has been suggested to cause gonadal deformities in frogs and could possibly impact on reproduction. Since the early 1960s, atrazine has been used in large amounts in maize production areas of South Africa. These areas overlap with... -
Assessment of laryngeal muscle and testicular cell types in Xenopus laevis (Anura Pipidae) inhabiting maize and non‐maize growing areas of South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: ErnestE. Smith --- Texas Tech University, LouisH. Du Preez --- North‐West University, South Africa Angella Gentles --- Texas Tech University, KeithR. Solomon --- University of Guelph, Canada Bernard Tandler --- Case Reserve University, JamesA. Carr --- Texas Tech University, GlenL. Van Der Kraak --- University of Guelph, Canada RonaldJ. Kendall --- Texas Tech University, JohnP. Giesy --- Michigan State University, TimothyS. Gross --- Florida Caribbean Science Center‐USGS‐BRD,We tested the hypothesis that adult African clawed frogs (Xenopus laevis) inhabiting water bodies in maize‐growing areas (MGA) of South Africa would exhibit differences in testicular structure compared to frogs from water bodies in non‐maize‐growing areas (NMGA) in the same... -
Bufo uzunguensis of southern Tanzania (Amphibia: Anura): A history of confusion
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: JohnC. Poynton --- The Natural History Museum, UK Michele Menegon --- Museo Tridentino di Scienze Naturali, Italy Sebastiano Salvidio --- DIP.TE.RIS Corso Europa 26, ItalyType and more recently‐collected material of Bufo uzunguensis Loveridge, is compared with members of the "B. lonnbergi complex” of east African highland dwarf toads. It is concluded that B. uzunguensis is not a member of this complex despite many similarities... -
On dwarf spiny reedfrogs in Tanzanian eastern lowlands (Anura: Afrixalus)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: John Poynton --- Natural History Museum,Some of Pickersgill's (2005) taxonomic proposals regarding an “A. stuhlmanni group” are reviewed; it is considered that Afrixalus delicatus, A. stuhlmanni, A. brachycnemis and A. sylvestris are better treated as separate species. New localities are provided. -
Chameleons and vineyards in the Western Cape of South Africa: Is automated grape harvesting a threat to the Cape Dwarf Chameleon (Bradypodion pumilum)?
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: KrystalA. Tolley --- South African National Biodiversity Institute, South Africa G. John Measey --- University of the Western Cape, South AfricaThe use of automated grape harvesters in the Cape Wine Growing region has resulted in controversy regarding their effect on the chameleon Bradypodion pumilum. We investigated densities of B. pumilum during harvesting at a vineyard near Stellenbosch, South Africa. During... -
A new giant species of Arthroleptis (Amphibia: Anura) from the forests of the Nguru Mountains, Tanzania
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: John Poynton --- Natural History Museum, UK SimonP. Loader --- University of Basel, Switzerland Michele Menegon --- Museo Tridentino di Scienze Naturali, ItalySpecimens of Arthroleptis attaining a body length of nearly 58 mm have been collected above 1790 m a.s.l. on the Nguru Mountains, part of the Eastern Arc mountain chain of Tanzania. In body size this material slightly surpasses the other... -
Observations on the breeding behaviour of the Taita dwarf toad Mertensophryne taitana on Mt. Mbololo, Taita Hills, Kenya
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jacob Mueti Ngwava --- National Museums of Kenya, PatrickK. Malonza --- South African National Biodiversity Institute, South Africa G. JohnMeasey --- National Museums of Kenya,Very little life‐history information is available regarding the 13 species of earless dwarf toads from the genus Mertensophryne. We report our observations on the breeding behaviour of M. taitana from Mount Mbololo in the Taita Hills, Kenya. Empirical data from... -
Rediscovery of Boulengerula fischeri, with notes on its morphology and habitat
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: G. John Measey --- Applied Biodiversity Research, Kirstenbosch Research Centre, South African National Biodiversity Institute, South Africa HaraldH. Hinkel --- The World Bank Country Office Kigali, Rwanda Bonny Dumbo --- University of Koblenz-Landau, Germany Eberhard Fischer --- University of Koblenz-Landau, GermanyCaecilians remain an enigmatic component of the tropical terrestrial fauna due in part to their cryptic life-history but also to a lack of directed effort towards their study. Many species are known from single specimens associated with poor collection data,... -
The past, present and future of African herpetology
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: John Measey --- University of the Western Cape, South AfricaAfter 47 years and 60 volumes, editorial policy in the scholarly journal of the Herpetological Association of Africa has changed from largely unscientific to strictly scientific. I investigate the causes for this by examining the changes in editorial policy throughout... -
The ‘peer’ in ‘Peer Review’
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Gad Perry --- Texas Tech University, USA Jaime Bertoluci --- Universidade de São Paulo, Brazil Bruce Bury --- USGS, USA RobertW. Hansen --- , USA Robert Jehle --- University of Salford, UK John Measey --- University of the Western Cape, South Africa BradR. Moon --- University of Louisiana at Lafayette, USA Erin Muths --- USGS, USA MarcoA. L. Zuffi --- Museum Natural History, University of Pisa, Italy -
Revised phylogeny of African sand lizards (Pedioplanis), with the description of two new species from south-western Angola
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Werner Conradie --- , South Africa G. John Measey --- South African National Biodiversity Institute, South Africa WilliamR. Branch --- , South Africa KrystalA. Tolley --- South African National Biodiversity Institute, South AfricaAlthough reptile diversity in Africa is high, it is poorly represented in Angola, with just 257 species known. Despite its greater surface area and habitat diversity Angola has significantly lower lacertid lizard diversity than adjacent Namibia. This is particularly notable... -
Using modern models to test Poynton's predictions
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Clemens Schreiner --- Zoologisches Forschungmuseum Alexander Koenig, Germany Dennis Rödder --- Zoologisches Forschungmuseum Alexander Koenig, Germany G. John Measey --- Nelson Mandela Metropolitan University, South AfricaIn his seminal work ‘The Amphibia of southern Africa: a faunal study’, Poynton identified and contrasted two centres of amphibian importance, the temperate south-western Cape (“Cape”) and tropical northeast (“Tropical”). With reference to the dominant role of climate fluctuations resulting... -
Afrotemperate Amphibians in southern and eastern Africa: a critical review
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: JohnC. Poynton --- Natural History Museum, UKThe term ‘Afrotemperate’ is taken to cover the area and fauna of the southern Cape, eastern highlands of South Africa, and intertropical highlands. A feature of Afrotemperate distribution is that it conforms to climatic zones rather than to latitudinal zonation... -
A molecular phylogeny for sub-Saharan amphisbaenians
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: G. John Measey --- , , South Africa Krystal A. Tolley --- , , South AfricaAmphisbaenians are enigmatic members of the subterranean herpetofauna with the majority of their diversity concentrated in South America and Africa. The largest family, Amphisbaenidae, occurs in South America and Africa, but the phylogenetic relationships among the genera are not clearly... -
Information Communication technology governance practices in universities: A case study of a university of technology in Durban, South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Mangundu --- Durban University of Technology, South AfricaInformation communication technologies (ICTs) have become an indispensable asset in the university environment. However, processes regarding ICT acquisition have become complicated as adoption of ICTs brings with it ICT risks, requiring ICT governance. ICT governance in a developing economy university... -
Do smaller businesses pay more bribes? Firm size, informal payments and mitigating strategies in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: George Acheampong --- University of Ghana, Legon-Accra, Ghana John Rand --- University of Copenhagen, Denmark,In this paper, we sought to understand the effect of firm size on demand for and payment of bribes by African firms and the strategies needed to overcome them. We argued that size represents a selectionist pressure on firms to... -
Lessons from Plants
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: John Roff --- , South Africa -
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, AustraliaThe 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... -
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 --- , NamibiaMany 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... -
Vocabulary size and comprehension of academic texts by Tanzanian university students: An exploratory study
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: John Misana Biseko --- University of Dodoma, TanzaniaThis study aimed at determining the influence of vocabulary size on comprehension of academic texts among 256 university entrants to whom English was a foreign language (EFL) and a medium of instruction. The study was carried out at the University... -
Community involvement in the mass capture of Red-billed Queleas Quelea quelea adjacent to protected areas: the case of Chemba District, Dodoma, Tanzania
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Naza Emanuel Mmbaga --- The University of Dodoma, Tanzania Richard John Mongi --- The University of Dodoma, Tanzania Mhuji Bukheti Kilonzo --- The University of Dodoma, Tanzania Leonard Kamanga Katalambula --- The University of Dodoma, TanzaniaThe mass capture and utilisation of Red-billed Queleas Quelea quelea as a source of food is practiced in different African countries. The current study sought information on the trapping methods and techniques used by local communities in Chemba District, Tanzania,... -
The avifauna of Niokolo-Koba National Park, Senegal: a review of historical and recent ornithological records
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John B Rose --- , France Oliver JL Fox --- , The Gambia Bram Piot --- , Laos Philippe Delaporte --- , FranceWe present the results of a review of the bird species historically observed in Niokolo-Koba National Park, a World Heritage Site and 913 000 ha natural protected area in southeastern Senegal. In carrying out this work we consulted both formal... -
Identifying HIV-exposed uninfected children and adolescents in resource-limited settings: the HOPE study experience
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Hellen Moraa --- , Kenya Maureen Kinge --- University of Nairobi, Kenya Alvin Onyango --- , Kenya Daniel Matemo --- , Kenya Grace John-Stewart --- University of Washington, USA Dalton Wamalwa --- University of Nairobi, Kenya Irene Njuguna --- , KenyaHIV-exposed uninfected (HEU) children and adolescents are at higher risk of poor outcomes compared to HIV-unexposed children (HUU). In program settings, it is critical to understand how to identify HEU for screening services. We describe our experience identifying HEU for... -
Editorial Introduction
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: John Goodwin --- , -
Teachers’ views and experiences of student mental health and well-being programmes: A systematic review
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: John Goodwin --- University College Cork, Ireland Laura Behan --- , Ireland Niamh O’Brien --- South East Technological University, IrelandBackground: In schools, teachers are often tasked with implementing mental health and well-being programmes. However, little is known about teachers’ views on and experiences with implementing these programmes. -
Family violence during COVID-19 and its impact on mental health of children: A systematic review
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Eslavath Rajkumar --- Indian Institute of Technology Bhilai, India Jayashree Mitra --- Central University of Karnataka, India Reethika Yadav --- Central University of Karnataka, India P. V. Hareesh --- Central University of Karnataka, India Alakananda Gangadharan --- Central University of Karnataka, India M. C. Gopika --- Central University of Karnataka, India Anamika Ben Christa --- Central University of Karnataka, India Allen Joshua George --- Indian Institute of Management, India Aswathy Gopi --- Central University of Karnataka, India Romate John --- Central University of Karnataka, India S. Arya --- Amity Institute of English Studies & Research, India John Abraham --- St. Johns National Academy of Health Sciences, India L. Rajashekaran --- Central University of Karnataka, IndiaPurpose: The COVID-19 pandemic posed unanticipated challenges that could impact how the family system operates across the world. Restrictions imposed to control the rapid spread of the virus substantially increased violence in families. The current study aims to review violence... -
C’ing is believing: What types of characteristics are found on bottles of wine? Do more characteristics mean more online presence?
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Gregory Charles Zetzsche --- IAE, Université de Bordeaux, France John Dunning --- Sheffield Business School, Sheffield Hallam University, United KingdomWine bottles feature various textual and visual elements. Aside from necessary legal information, wine-branding decision-makers choose what goes on the bottle. They may also choose a bottle shape that is out of the ordinary to draw more attention. Rather than... -
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 AfricaThe 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... -
A systematic review of remote sensing and machine learning approaches for accurate carbon storage estimation in natural forests
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Collins Matiza --- University of KwaZulu-Natal, South Africa Onisimo Mutanga --- University of KwaZulu-Natal, South Africa Kabir Peerbhay --- University of KwaZulu-Natal, South Africa John Odindi --- University of KwaZulu-Natal, South Africa Romano Lottering --- University of KwaZulu-Natal, South AfricaThe assessment of carbon storage in natural forests is paramount in the ongoing efforts against climate change. While traditional field-based methods for quantifying carbon storage pose challenges, recent advancements in remote sensing and machine learning offer efficient and innovative alternatives... -
Farm operation injuries among cocoa famers in Ghana: Investigating the causes, choice of treatment and compliance to safety standards
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Gifty-Maria Sangber-Dery --- KNUST-Kumasi, Ghana Enoch Kwame Tham-Agyekum --- KNUST-Kumasi, Ghana Fred Ankuyi --- KNUST-Kumasi, Ghana John-Eudes Andivi Bakang --- KNUST-Kumasi, Ghana Nathaniel Nii Lartey Lartey --- University of Michigan, USA Ernest Laryea Okorley --- University of Cape Coast, Ghana Ebenezer Osei Jones --- Akenten Appiah-Menka University of Skills Training and Entrepreneurship Development, Ghana David Boansi --- KNUST-Kumasi, GhanaThis study investigated the socioeconomic factors that predispose cocoa farmers to farm operation injuries, their choice of treatment and compliance with recommended safety standards. It used the multi-stage sampling technique to collect data from 400 cocoa farmers. Descriptive statistics, the... -
Agricultural credit guarantee scheme fund and oil palm production in Nigeria: A vector autoregressive (VAR) approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Elaigwu Christopher Ogbanje --- Nasarawa State University, Nigeria Eberechukwu Johnpaul Ihemezie --- University of Nigeria, NigeriaOil palm has been identified as one of the key agricultural products that can diversify Nigeria’s economy. However, its production and export have been hampered by capital constraints. Consequently, the Agricultural Credit Guarantee Scheme Fund (ACGSF) was introduced to encourage... -
Distribution and site fidelity of four endemic catshark species in Walker Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TL Johnson --- , South Africa JC de Bresser --- , South Africa E Cottrant --- , South Africa NJ Drobniewska --- , South Africa TG Paulet --- , South Africa LG Underhill --- University of Cape Town, South AfricaCatsharks (family Scyliorhinidae) and the recently reclassified deepwater catsharks (family Pentanchidae) are two of the largest families of elasmobranchs and include species that function as important mesopredators in almost all marine ecosystems. This study focuses on four species endemic to... -
The first description of the nest and egg of the Long-billed Forest-warbler Artisornis moreaui with additional notes on the breeding of the Red-capped Forest-warbler A. metopias
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jasson John --- University of Dar es Salaam, Tanzania Edigar Apolinary --- , Tanzania Emmanuel Mgimwa --- , TanzaniaWe present the first description of the nest and egg of the Long-billed Forest-warbler Artisornis moreaui recently discovered in Nilo Nature Forest Reserve, Tanzania. Two subspecies are recognised: the nominate one, endemic to East Usambara Mountains in northeastern Tanzania, and... -
Geographic distribution of the scorpion fauna in the central Moroccan region of Souss-Massa with potential implications for public health
Item type: Journal Article • Journal: African Zoology • Authors: Fouad Salhi --- Ibn Zohr University, Morocco John P Dunbar --- Institute, University of Galway, Ireland Colin Lawton --- Animal Ecology & Conservation Unit, Ryan Institute, University of Galway, Ireland Jamila Hermas --- Ibn Zohr University, Morocco Jaouad Abou Oualid --- Ibn Zohr University, Morocco Michel M Dugon --- Institute, University of Galway, IrelandDespite the medical importance of North African scorpions, many aspects of their ecology which may be important to understand envenoming patterns throughout their range, remain understudied. The region of Souss-Massa in central Morocco exhibits a high incidence of scorpion envenomings,... -
Innovation research in and on Africa: A literature analysis in 2015–2021
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Jussi S. Jauhiainen --- University of Turku, Finland John Ouma Mugabe --- University of Pretoria, South AfricaInnovation scholars disseminate their significant findings through international scientific journals. We conducted content analysis of 2,869 peer-reviewed articles on innovation in Africa, examining their origins, themes, collaborative networks, and scholarly influence. These articles, spanning the years 2015–2021, were curated from... -
Influence of optimal room occupancy strategies on revenue maximisation during slack periods in selected 3- to 5-star hotels in Ghana
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: John Adanse --- School of Business, Economics and Tourism Management, Kenyatta University, Kenya Rosemarie Khayiya --- School of Business, Economics and Tourism Management, Kenyatta University, Kenya Vincent Maranga --- School of Business, Economics and Tourism Management, Kenyatta University, KenyaAn organisation’s inability to generate adequate income to sustain its business activities poses a significant challenge to maintaining profitability. Employing revenue-maximisation strategies is crucial to securing necessary resources and ensuring the continued success and stability of organisations. The purpose of... -
Evaluating resistance drilling and NIR spectroscopy for quantifying wood quality of young eucalypts grown in Guangxi province in southern China
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Y Cheng --- , China GM Downes --- , Australia C Johnsson --- , Sweden B Sundberg --- , Sweden RJ Arnold --- Research Institute for Fast-growing Trees, ChinaCost-effective, non-destructive means of estimating wood properties of eucalypts grown in Guangxi, China, were evaluated using near infrared (NIR) spectroscopy and resistance drilling. For this evaluation, wood samples for NIR analysis and resistance drill measurements were collected from 581 trees,... -
Mapping the contextual mental health interventions for perinatal adolescent mothers with self-reported common mental symptoms (anxiety and depression) in sub-Saharan African countries: a scoping review
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Chimwemwe Pindani Tembo --- Saint John of God College of Health Sciences, Malawi Linda Portsmouth --- Curtin University, Australia Sharyn K Burns --- Curtin University, AustraliaIntroduction: Early preventive interventions may support adolescent mothers’ mental health during the perinatal period. However, adolescent maternal mental health interventions have received little empirical research attention. This scoping review maps the evidence on interventions appropriate for adolescent mothers during the... -
Editorial
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: John Goodwin --- , -
A systematic literature review and mapping of systemic barriers to digital learning innovation in Africa in the context of changing global value chains
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Martin Mbaya* --- University of Pretoria, South Africa John Ouma-Mugabe --- University of Pretoria, South AfricaIn the context of COVID-19, universities, national innovation systems (NIS) and global value chains (GVCs), this paper explores systemic barriers (trends and factors) that influence digital learning innovation (DLI) in Africa. The study used the PRISMA framework and Scopus data... -
Investigating drivers of information technology governance in South African public healthcare sector
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Mangundu --- University of the Witwatersrand, South Africa Osden Jokonya --- University of the Western Cape, South AfricaAs organizations continue to heavily invest in Information Technology (IT), effective information technology governance is critical to make sure that IT spending leads to the fulfilment of organizational goals and delivery of expected value. The purpose of this study is... -
Catalysts of social change and innovation: Mediating role of social self-efficacy and social support on social entrepreneurial intentions
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abin John --- Bharathidasan University, India Vanitha Selvaraj --- Bharathidasan University, India Muhammed Jisham --- Bharathidasan University, IndiaThere has been a recent surge in social entrepreneurship to address pressing social problems. Social ventures drive positive change and reshape traditional business norms by providing innovative solutions and fostering inclusive growth. Social entrepreneurial intention (SEI) is crucial to studying... -
Contribution of R&D grants and investment to the commercialization of innovations in Uganda: Lessons from UNCST a science granting council
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ronald Jjagwe --- Makerere University, Uganda John Baptist Kirabira --- Makerere University, Uganda Norbert Mukasa --- Makerere University, UgandaThe Government of Uganda (GoU) has prioritized Science, Technology, and Innovation (STI) in its pursuit of a knowledge-based economy. While scholars have identified a positive association between innovation investment and performance, the role of R&D grants and investment in the... -
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 --- , USAGhanaians 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,... -
Addressing Issues of Mental Health in Schools Through the Arts: Teachers and Music Therapists Working Together
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: John Bhurekeni --- Rhodes University, South Africa -
Synergies of dark tourism, future trends and tourism education: a dialogue with Professors John Lennon and Ian Yeoman
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Rodney Westerlaken --- Hotel Management School Leeuwarden, NHL Stenden University of Applied Sciences, The Netherlands John Lennon --- Glasgow Caledonian University, United Kingdom Ian Yeoman --- Hotel Management School Leeuwarden, NHL Stenden University of Applied Sciences, The NetherlandsThis edited transcript documents a dialogue between Rodney Westerlaken, Editor-in-Chief of Research in Hospitality Management, and Professors John Lennon and Ian Yeoman, which took place as part of the Hotel Management School Leeuwarden’s celebration of World Tourism Day. The conversation... -
Risk spillovers among global oil & gas firms
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Oluwasegun B. Adekoya --- University of Maine, USA Johnson A. Oliyide --- University of Maine, USA Ademola B. Akinseye --- Tai Solarin University of Education, Nigeria Mamdouh Abdulaziz Saleh Al-Faryan --- University of Portsmouth, UKThis study examines the risk spillovers among the world’s top oil & gas firms, accounting for the role of environmental fiscal policies, economic policy uncertainty (EPU), and regulatory quality. We find evidence of high risk spillovers among the oil &... -
Influence of spatio-temporal variations in precipitation and temperature on the productivity of Eastern Lake Kyoga, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: John Peter Obubu --- African Centre of Excellence for Water Management, Addis Ababa University, Ethiopia Robinson Odong --- Entomology and Fisheries Sciences, Makerere University, Uganda Seyoum Mengistou --- African Centre of Excellence for Water Management, Addis Ababa University, Ethiopia Tadesse Fetahi --- African Centre of Excellence for Water Management, Addis Ababa University, Ethiopia Tena Alamerew --- Ethiopian Institute of Water Resource, Addis Ababa University, Ethiopia Ekwacu Samuel --- Uganda National Meteorological Authority, UgandaSpatio-temporal variations in precipitation and temperature affect productivity in aquatic systems, mainly through nutrient dynamics. Shallow lakes are more vulnerable to spatio-temporal variations, yet they are an important resource for biodiversity conservation, water supply and fisheries. The eastern arm of... -
Stabilization of a coupled bridge system with past history and gurtin-pipkin’s heat conduction
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Soh Edwin Mukiawa --- University of Hafr Al Batin, Saudi Arabia Johnson D. Audu --- King Fahd University of Petroleum and Minerals, Saudi Arabia Salim A. Messaoudi --- University of Sharjah, United Arab EmiratesThe asymptotic stability of the vertical vibrations of a suspension bridge and the main cables from which the bridge is suspended by the cables is investigated. The history of the materials of the bridge and the effect of heat governed... -
Unemployment in Nigeria: The significance of optimizing benefits of innovation
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Fisayo Fagbemi --- Obafemi Awolowo University, Nigeria John Oluwasegun Ajibike --- The Polytechnic, Nigeria Teniola Abosede Adesanya --- The Polytechnic, NigeriaReflections on the problems facing the labour market in Nigeria and the need to proffer solutions to the high unemployment rate in the country call for an assessment of the possible relationship between innovation and unemployment between 1990 and 2020... -
Spillover effects of tree-planting programmes on household tree planting for fuelwood and livelihoods in non-urban areas of Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Yusuph John Kulindwa --- Moshi Co-operative University, TanzaniaA spillover effect of tree planting programmes (TPs) and of the independent planting of trees for fuelwood by forest-dependent households is that deforested areas in developing countries have not been restored due to the high demand for fuelwood, which outstrips... -
When and how does creativity influence performance? An examination of SMEs in an emerging economy
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Ahmed Agyapong --- Kwame Nkrumah University of Science and Technology, Ghana Felicity Asiedu Appiah --- Kwame Nkrumah University of Science and Technology, Ghana Hannah Vivian Osei --- Kwame Nkrumah University of Science and Technology, Ghana Suzzie Aidoo --- York St John University, UKUnderpinned by the resource-based view and social capital theories, this study examines the mediating role of innovation in the relationship between creativity and the performance of SMEs in an emerging economy. We propose additionally that the innovation created through the... -
HIV incidence and prevalence projections for Zimbabwe: Findings from five mathematical models
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Isaac Taramusi --- UNAIDS UCO Zimbabwe, Zimbabwe John Stover --- , United States of America Robert Glaubius --- , United States of America Tsitsi Apollo --- Ministry of Health and Child Care, Zimbabwe Getrude Ncube --- Ministry of Health and Child Care, Zimbabwe Owen Mugurungi --- Ministry of Health and Child Care, Zimbabwe Ngwarai Sithole --- Ministry of Health and Child Care, Zimbabwe Loveleen Bansi-Matharu --- Institute for Global Health, University College London, United Kingdom Jenny Smith --- Institute for Global Health, University College London, United Kingdom Andrew Phillips --- Institute for Global Health, University College London, United Kingdom Valentina Cambiano --- Institute for Global Health, University College London, United Kingdom Daniel T Citron --- New York University Grossman School of Medicine, United States of America Anna Bershteyn --- New York University Grossman School of Medicine, United States of America Debra ten Brink --- Burnet Institute, Australia Rowan Martin-Hughes --- Burnet Institute, Australia Michael Pickles --- Medical Research Council Centre for Global Infectious Disease Analysis, Imperial College London, United Kingdom Paul Revill --- University of York, United Kingdom Amon Mpofu --- National AIDS Council of Zimbabwe, Zimbabwe Jeffrey Imai-Eaton --- Chan School of Public Health, Center for Communicable Diseases Dynamics, Harvard University, United States of America Richard Makurumidze --- Faculty of Medicine and Health Sciences, University of Zimbabwe, Zimbabwe Simbarashe Rusakaniko --- Faculty of Medicine and Health Sciences, University of Zimbabwe, ZimbabweIntroduction: Understanding how HIV epidemics are likely to behave in the future is key to informing HIV response strategies in low-income countries. Up-to-date HIV epidemiological estimates are important for policy decision- making, but surveillance data can be out of date... -
Evaluating the implementation of prevention of mother-to-child transmission of HIV in Mwanza district hospital, Malawi
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: John Bester Kalumbi --- Peking University, ChinaIntroduction: Globally, mother-to-child transmission (MTCT) of HIV significantly contributes to paediatric HIV infections. Effective prevention of mother-to-child transmission (PMTCT) programs aim to achieve the World Health Organization’s target of less than 5% transmission rates. This study evaluated the implementation of... -
On the determinants of derivatives disclosure – an emerging markets perspective
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Franz Eduard Toerien --- University of Pretoria, South Africa John Hall --- University of Pretoria, South Africa Leon Brümmer --- University of Pretoria, South Africa -
Introducing Volume 36 of the Journal of Child & Adolescent Mental Health
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: John Goodwin --- Journal of Child & Adolescent Mental Health, -
Modelling users’ intention to migrate from free to premium personal cloud storage in freemium business models: A machine learning approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Oredo --- Department of Library and Information Science, University of Nairobi,Extant technology post-adoption studies focus on effective and continued use. The current study models the features that explain and predict users’ intention to migrate from free to premium cloud storage services. Data were collected from 122 postgraduate students on perceived... -
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 AfricaMany 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... -
Factors influencing participation in the planting for food and jobs programme: Empirical evidence from maize farmers in Ejura Sekyedumase, Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Addison Kwasi Akowuah --- Kwame Nkrumah University of Science and Technology (KNUST), Ghana John-Eudes Andivi Bakang --- Kwame Nkrumah University of Science and Technology (KNUST), Ghana Enoch Kwame Tham-Agyekum --- Kwame Nkrumah University of Science and Technology (KNUST), Ghana Fred Ankuyi --- Kwame Nkrumah University of Science and Technology (KNUST), Ghana Akua Yeboah Oduro-Owusu --- Ghana Cocoa Board (COCOBOD), Ghana Collins Osei --- Kwame Nkrumah University of Science and Technology (KNUST), Ghana Solomon Asirifi --- Ghana Cocoa Board (COCOBOD), Ghana Pascal Benson Atiglah --- St Francis’ College of Education, GhanaPlanting for Food and Jobs (PFJ) as a development intervention has come with many successes. However, the recent concerns about its gradually dwindling prospects call for academics to study farmers’ participation and motivation, focusing on the Ejura Sekyedumase Municipality in... -
Exploring the strategies shaping application programming interface development and integration in digital music platforms: A qualitative case study
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Joshua Ofoeda --- University of Professions Studies, Ghana Richard Boateng --- University of Ghana, Ghana Choudrie Jyoti --- University of Hertfordshire, UK John Effah --- University of Ghana, GhanaApplication Programming Interfaces (APIs) have become essential to contemporary software development, supporting the growth of digital platforms and ecosystems. APIs enable developers to create applications by providing functionalities that facilitate communication. Despite their importance in supporting digital platforms and ecosystems,... -
Wine stewards: future professionalism in a rapidly changing hospitality world
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: John Dunning --- Sheffield Hallam University, United Kingdom Gregory Charles Zetzsche --- OMNES Education INSEEC, FranceThe hospitality industry is diverse, with restaurants forming a significant sub-sector. Within these, the sale of wine and other drinks is not only a potential source of profit, but also an integral part of the dining experience. Wine stewards, or... -
“A is for Aircháelán”: the case for compiling a compendium of food in Ireland
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: John D. Mulcahy --- , IrelandSimilar to any geography, food and beverages have been an integral part of Ireland’s cultural fabric. Yet, in Ireland, despite a growing body of publications, a lacuna exists. Until now, no one has undertaken the compilation of an overarching reference... -
The exploration of compensation in English literal translation of Sesotho proverbs
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Relebohile Margrett Molulela --- National University of Lesotho, Lesotho Rethabile Possa --- University of Cape Town, South Africa Mape John Mohlomi --- Durban University of Technology, South AfricaThis study explores how Mokitimi employed compensation in producing literal translations of Sesotho proverbs in her book The Voice of the People (1997). The impetus for this study was our observation that generally, researchers tend to provide literal translations of... -
J. K. Hart (1943-2025)—Keith Hart and the Human Economy Research Programme
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: John Sharp --- University of Pretoria, South Africa -
Large bird collision mortality on power lines in southern Namibia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Pallett --- University of Cape Town, South Africa Peter G Ryan --- University of Cape Town, South AfricaGlobally, power lines cause significant mortalities of birds through collisions and electrocutions, yet this problem has received only sporadic attention in Namibia. Vehicle-based surveys were undertaken every three months for one year to record mortalities of large birds along 349... -
‘The mountain has a story to tell’: transhumant production systems in the US Intermountain West
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Hailey Wilmer --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Jonathan Spiess --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Katherine D White --- Department of Ecosystem Science and Management, University of Wyoming, USA Amira Burns --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Steven Cox --- Former Dubois Ranger District, Caribou-Targhee National Forest, USA John Derek Scasta --- Laramie Research and Extension Center, Department of Ecosystem Science and Management, University of Wyoming, USA Devan Allen McGranahan --- Livestock and Range Research Laboratory, USDA Agricultural Research Service, USA Carrie S Wilson --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA Will Munger --- USDA-ARS Range Sheep Production Efficiency Research Unit, USA J Bret Taylor --- USDA-ARS Range Sheep Production Efficiency Research Unit, USAGrazing systems research has taken a notable social-ecological turn in response to recent debates, and integrative work is still needed to address gaps in our understanding of multiscalar dynamics in transhumant systems. Transhumance encompasses diverse cultures, ecological relationships, and traditions... -
From data to decisions: the potential of real-time precision technologies to enhance adaptive grazing management for livestock ranchers
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Justin D Derner --- USDA-Agricultural Research Service, Center for Agricultural Resources Research, Rangeland Resources and Systems Research Unit, USA J Gonzalo Irisarri --- University of Wyoming, Department of Ecosystem Science and Management, USA Edward J Raynor --- Colorado State University, AgNext, USA John P Ritten --- Colorado State University, AgNext, USA Clay A Lents --- USDA-Agricultural Research Service, Meat Animal Research Center, Livestock Biosystems Research Unit, USA Kaiyu Guan --- University of Illinois Urbana-Champaign, Agroecosystem Sustainability Center and College of Agricultural, Consumer, and Environmental Sciences, USA Bin Peng --- University of Illinois Urbana-Champaign, Agroecosystem Sustainability Center and College of Agricultural, Consumer, and Environmental Sciences, USA Lexuan Ye --- University of Illinois Urbana-Champaign, Agroecosystem Sustainability Center and College of Agricultural, Consumer, and Environmental Sciences, USA Greg Thoma --- Colorado State University, AgNext, USA Lauren M Porensky --- USDA-Agricultural Research Service, Center for Agricultural Resources Research, Rangeland Resources and Systems Research Unit, USA David J Augustine --- USDA-Agricultural Research Service, Center for Agricultural Resources Research, Rangeland Resources and Systems Research Unit, USAAdvances in on-animal sensors and remote sensing have generated vast data streams, but their impact on rancher decision-making remains limited due to fragmented and uncoordinated efforts. Integration of on-animal monitoring with remote sensing of the grazing resource base offers synergistic... -
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, IndiaThe 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...
