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A Stand Table Projection Approach to Yield Prediction in Plantations
Item type: Journal Article • Journal: South African Forestry Journal • Authors: L.V. Pienaar --- , USAA procedure is presented whereby an initial stand table is projected to a future age. Application of the procedure requires the availability of a survival prediction, as well as a total basal area projection equation. Relative tree size is defined... -
Simultaneous Growth and Yield Prediction Equations for Pinus elliottii Plantations in Zululand
Item type: Journal Article • Journal: South African Forestry Journal • Authors: L.V. Pienaar --- , USA W.M. Harrison --- , USALong-term remeasurements of spacing and thinning (CCT) experimental plots are used to formulate stand basal area and stem volume prediction and projection equations, consistent with observed growth trends. Logically consistent yield prediction and projection equations are thus derived for unthinned... -
Comparison of Eucalyptus grandis Provenances and Seed Orchards in a Frost Frequent Environment
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D.L. Rockwood --- Department of Forestry, USA G.F. Meskimen --- , USAAn international provenance trial of Eucalyptus grandis was established in southern Florida in 1980 and measured for growth and frost-tolerance through 8,8 years. The trial compared 20 Australian provenances 1) among themselves and 2) with seed orchard stock from Florida... -
Incorporating Risk into Eucalyptus Species—Site Selection Decisions
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.P. Caulfleld --- , USA A. P.G. Schönau --- Institute for Commercial Forestry Research, South Africa D. G.M. Donald --- Faculty of Forestry, South AfricaThe mean-variance and expected value rules, along with stochastic dominance analysis are used to show how risk can be included in species-site selection decisions. Fourth-year volumes from a Eucalyptus species comparison trial in the south-eastern Transvaal were compared on different... -
Potential for Mechanised Logging Systems in the Republic of South Africa
Item type: Journal Article • Journal: South African Forestry Journal • Authors: AmyasL. Player --- , USA W. Dale Greene --- , USACompany crew harvesting operations on Mondi Paper Company Ltd land in the highveld region, Transvaal, RSA, were studied from June to September 1990. Time studies were conducted to estimate production rates on the three operational phases: felling, skidding, and stacking... -
Sustainable Forestry: The Role of Eucalypts and Lessons from Natural and Artificial Monoculture Systems
Item type: Journal Article • Journal: South African Forestry Journal • Authors: Dieter Mueller-Dombois --- Department of Botany, USAThroughout much of the world's subtropics, eucalypts have become favoured plantation trees for commercial forestry. The reasons for their popularity are similar to those that made Norway spruce the favoured plantation tree in Central Europe. As is well known, however,... -
Assessing Rhizina Root Disease Hazard: A Case Study
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.E. Lundquist --- Rocky Mountain Forest and Range Experiment Station, USAPine seedlings were sequentially planted on small observation plots used to monitor the potential for Rhizina root disease at one recently burned plantation in the Transvaal. The results indicated that seedlings could be planted without delay on sites that were... -
An Experimental Design for Outplanting Nursery Trials on Heterogeneous Sites
Item type: Journal Article • Journal: South African Forestry Journal • Authors: DavidB. South --- , USA G. Sam Foster --- USDA Forest Service, USAThe selection of the field design for outplanting a nursery study is determined by the researcher's objectives and, to some extent, the heterogeneity of the outplanting site. Square (or almost square), multiple-tree plots are recommended for long-term studies, but owing... -
Effect of Nursery Culture and Bud Status on Freeze Injury to Pinus taeda and P elliottii Seedlings
Item type: Journal Article • Journal: South African Forestry Journal • Authors: DavidB. South --- , USA D. G.M. Donald --- Forestry Faculty, J.L. Rakestraw --- Union Camp Corporation, USAThe effects of nursery practices on freeze tolerance of P. taeda and P. elliottii seedlings were examined by placing the seedlings in a freezing chamber and lowering the temperature to -10°C. Injury was evaluated 10 days after the freeze treatment... -
Regeneration Procedures of Pinus radiata in the Southern Cape Province
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.B. Zwolinski --- , USA D. G.M. Donald --- Forestry Faculty, A. van Laar --- Forestry Faculty,The present paper, which discusses the regeneration of Pinus radiata, represents Part 1 of a series of publications based on experimental studies of the subject. It provides information about the background of the trials and discusses the modification of soil... -
Regeneration Procedures of Pinus radiata in the Southern Cape Province
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.B. Zwolinski --- , USA D. G.M. Donald --- Forestry Faculty, A. van Laar --- Forestry Faculty,Part 2 of the series of papers dealing with the regeneration ofPinus radiata in the Southern Cape discusses the effect of the experimental treatments on the distribution of nutrient elements, more particularly to estimate the impact of treatments on changes... -
Regeneration Procedures of Pinus radiata in the Southern Cape Province
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.B. Zwolinski --- , USA D. G.M. Donald --- Forestry Faculty, A. van Laar --- Forestry Faculty,The present paper is part 3 in the series of publications dealing with the regeneration of Pinus radiata in the Southern Cape Province. The objective of the study was to compare the organic carbon contents in the soils and the... -
Relative Growth Rates: a Critique
Item type: Journal Article • Journal: South African Forestry Journal • Authors: DavidB. South --- , USAForest researchers frequently use mean relative growth rates to compare growth of seedlings that differ in initial size. Reasons for using the technique include: 1) to eliminate any size-related growth differences, and 2) to determine which seedlings are inherently more... -
Early Performance of CAMCORE Introductions of Pinus patula in Brazil, Colombia and South Africa
Item type: Journal Article • Journal: South African Forestry Journal • Authors: W.S. Dvorak --- Grinnells Laboratory, USA J.K. Donahue --- Grinnells Laboratory, USA J.A. Vasquez --- Grinnells Laboratory, USASeeds were collected from 13 provenances and 282 mother trees of Pinus patula Schiede & Deppe across a 900 km transect from Tamaulipas to Oaxaca, Mexico by the CAMCORE Cooperative, North Carolina State University, USA. Thirty-three provenance/progeny tests were established... -
Realised and Predicted Genetic Gain in the Pinus patula Breeding Program of Smurfit Carton de Colombia
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.A. Wright --- , Colombia L.F. Osorio --- , Colombia W.S. Dvorak --- , USANarrow sense individual (h2), family (h2 f) and within family (h2 w) heritability values for Pinus patula from three CAMCORE trials in Colombia were calculated for height, diameter at breast height and volume per tree at eight years of age... -
Bush control in grassland by aerial spraying
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: F. Sousa de Almeida --- , PortugalThe results are reported of three trials in which chemicals were applied from an aircraft to control bush on severely infested natural grassland in Moçambique. Acacia nilotica, A. borleae and Dichrostachys cinerea were killed by a mixture of 2,4‐D and... -
The comparative feeding behaviour of‐goats and impalas die vergelykende voedingsgedrag van boerbokke en rooibokke
Item type: Journal Article • Journal: Proceedings of the Annual Congresses of the Grassland Society of Southern Africa • Authors: SusanM. Cooper --- Savanna Ecosystem Project, TransvaalThe feeding behaviour of goats and impalas was compared in terms of the allocation of feeding time to different food sources, the species of plants favoured and the feeding rates obtained from them. -
Influence of climatic and edaphic factors on the distribution of eragrostis lehmanniana nees in Arizona, USA
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J R Cox --- US Department of Agriculture, USA G B Ruyle --- Renewable Natural Resources, USALehmann lovegrass (Eragrostis lehmanniana Nees) was introduced into Arizona, USA, from South Africa in 1932 and has since been sown throughout the southwestern USA and Northern Mexico. The species is well adapted in southeastern Arizona where it has been sown... -
Yield and morphological responses of a forage sorghum to mefluidide
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: D I Bransby --- , A G Matches --- , USA C R Richardson --- , USADue to rapid growth, stem build‐up in forage sorghum crops often leads to considerable wastage by animals and consequent loss of production. In this study the potential of the chemical plant growth regulator, mefluidide, for modifying the morphology of forage... -
Production of plantlets from tissue cultures of Lotononis, a southern African veld legume1
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: A.M. Thro --- Agronomy Department, Louisiana Agricultural Experimental Station, USA A.T. Wier --- Agronomy Department, Louisiana Agricultural Experimental Station, USA K.C. Torres --- , USA H.E. Flores --- Plant Pathology and Crop Physiology Department, College of Agriculture, USA M. Pillay --- Biology Department, USAA simple procedure is described for the production of large numbers of rooted plantlets from callus cultures of Lotononis bainesii Baker. Highest frequency of shoots was obtained from somatic embryos formed in initiation cultures on Murashige & Skoog medium plus... -
Climatic and edaphic conditions at eragrostis lehmanniana nees sites in Arizona, USA and the cape province, RSA and potential seeding sites in Southern Africa
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: JerryR. Cox --- U.S. Department of Agriculture, USA J.L. Stroehlein --- Soil and Water Department, USA J.H. Fourie --- , Republic of South AfricaClimatic and edaphic conditions at Eragrostis lehmanniana Nees sites in southeastern Arizona, USA were compared with those in the Cape Province, RSA to determine a range of conditions under which the species might be expected to establish and persist in... -
Field reactions of lucerne genotypes to anthracnose and crown rot caused by Colletotrichum trifolii
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: SusanH. Koch --- Department of Plant Pathology, Republic of South Africa P.S. Knox-Davies --- Department of Plant Pathology, Republic of South AfricaNineteen different cultivars and experimental lines of lucerne (Medicago sativa L.) were inoculated with sand-bran cultures of Colletotrichum trifolii Bain & Essary and evaluated for resistance to anthracnose and crown rot under local conditions. The various genotypes differed significantly in... -
Germination of Pterocarpus angolensis DC. and evaluation of the possible antimicrobial action of the phloem sap
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: K. van der Riet --- Department of Plant and Soil Sciences, Republic of South Africa L. van Rensburg --- , R.I. De Sousa Correia --- , L.J. Mienie --- Department of Biochemistry and Microbiology, G. H.J. Krüger --- Department of Plant and Soil Sciences, Republic of South AfricaThe Transvaal teak (Pterocarpus angolensis) is being over utilised in its natural habitat, although it is a protected tree in South Africa, Swaziland and Namibia. The phloem sap of this species has several traditional, medicinal uses and the wood is... -
Biology of Cicadulina leafhoppers and epidemiology of maize streak virus disease in West Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: NilsaA. Bosque-Pérez --- Department of Plant, Soil and Entomological Sciences, USA I.W. Buddenhagen --- Department of Agronomy and Range Science, USAStudies have been conducted in Nigeria on biology of Cicadulina leafhopper vectors of maize streak virus (MSV), the role of indigenous grasses as reservoirs of virus and vectors, and on incidence and severity of MSV in relation to maize varietal... -
Historical overview of breeding for durable resistance to maize streak virus for tropical Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: I.W. Buddenhagen --- Department of Agronomy and Range Science, USA NilsaA. Bosque-Perez --- Department of Plant, USAMaize streak virus (MSV) was first studied by Storey in Kenya in the 1920s and resistance transferred into East African maize in the 1960's. Yet the majority of farmers of East Africa are still growing streak-susceptible maize. At the International... -
CLIMGEN-UP: A user-friendly weather data generator
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N.Z. Jovanovic --- Department of Earth Sciences, South Africa J.G. Annandale --- Department Plant Production and Soil Science, South Africa N. Benadè --- , South Africa G.S. Campbell --- , USAUser-friendly Windows software, CLIMGEN-UP, was developed based on the CLIMGEN weather data generator. CLIMGEN-UP calculates and stores monthly statistical parameters, based on historic data of daily rainfall, minimum and maximum temperature. It can then generate and store long-series of daily... -
Globalization of agriculture
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: K. Whigham --- Department of Agronomy, USA D. Acker --- , USA -
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... -
Effects of liming on microbial activity and N mineralization in broiler manure-amended soils from Bizana, Eastern Cape, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.G. Jezile --- Department of Soil and Crop Sciences, USA D.G. Westfall --- Department of Soil and Crop Sciences, USA G. Peterson --- Department of Soil and Crop Sciences, USA D.R. Child --- Department of Rangeland Ecosystem Sciences, USA D.P. Turner --- , RSA W. Van Averbeke --- , RSAA laboratory incubation study was conducted to determine the effects of liming on microbial activity and N mineralization in two Bizana soils amended with broiler manure. The experimental layout was a 4 x 3 complete factorial experiment with three replicates,... -
The antifungal activity of potassium silicate and the role of pH against selected plant pathogenic fungi in vitro
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: T. F. Bekker --- Department of Plant Production and Soil Science, South Africa C. Kaiser --- , USA N. Labuschagne --- Department of Microbiology and Plant Pathology, South AfricaIn-vitro inhibition of mycelial growth of phytopathogenic fungi grown on potassium silicate amended media has been demonstrated. In the current study the respective effects on fungal growth of changes in the pH of growth medium with increased concentrations of potassium... -
‘Water and fertilizer influence on yield of grain sorghum varieties produced in Burkina Faso
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S. Palé --- , Burkina Faso S.C. Mason --- , USA S.J.B. Taonda --- , Burkina FasoGrain sorghum [Sorghum bicolor (L.) Moench] is the major cereal crop used in the Central Plateau of Burkina Faso to produce the traditional beer called “dolo”. Experiments combining five water management techniques (WMT) and four fertilizer treatments (FT) in a... -
Maize–planting date interaction and effect of Bt maize on European corn borer (Ostrinia nubilalis (Hubner) (Coleoptera: Crambidae) damage
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M Obopile --- Department of Entomology, Ohio Agricultural Research and Development Center, USA RB Hammond --- Department of Entomology, Ohio Agricultural Research and Development Center, USA PR Thomison --- Department of Horticulture and Crop Science, USAA study was conducted to determine the influence of planting date and transgenic maize on maize yield following stalk injury by European corn borer, Ostrinia nubilalis (Hubner). Transgenic and non-transgenic maize hybrids with short- and full-season maturity were planted in... -
STRATEGIES FOR ACQUIRING ZULU CONCORD
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: SusanM. Suzman --- ,Transcripts of the speech of four two-year old Zulu children were analysed for insights they provided about the strategies children use to acquire the concord system. It was found that all children initially used a small subset of subject-verb-agreement (SVA)... -
Africanization and the curriculum in linguistics
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: SusanM. Suzman --- Department of Linguistics, Republic of South Africa R.K. Herbert --- Department of Linguistics, Republic of South AfricaThis paper considers the links between the study of linguistics and the field of African languages research. It is argued that the context of the southern African university, including socio-political realities, dictate a greater co-operation between the disciplines. A curriculum... -
SOCIOLINGUISTICS: AN OVERVIEW
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: C. Myers-Scotton --- , USAThis paper surveys the main concerns and main tenets of sociolinguistics, as seen by the author. It begins by discussing the three main types of linguistic, varieties (languages, dialects and styles/registers) and how they may be differentiated. Specifically in regard... -
LANGUAGE PLANNING AS A BRANCH OF SOCIOLINGUISTICS
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: C.M. Eastman --- , USAThis transcript of a talk on language planning as a branch of sociolinguistics reviews various ways linguists define language and seek lo account for its appropriate use. For a language planner, at issue is language use in context. Planners need... -
LANGUAGE FUNCTION AND LANGUAGE VARIATION: ANALYTIC MODELS FOR THE SOUTH AFRICAN CONTEXT
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: T.G. Reagan --- , USAThis article presents two typologies (or those interested in the study of language in its social context, focusing first on the functions of language and second on the nature and analysis of language variation. In the discussion of the functions... -
An account of vowel lengthening in Cilubà
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Stephen T.M. Lukusa --- Department of Foreign Languages and Linguistics, TanzaniaThis article offers an autosegmental explanation of vowel lengthening processes in Cilubà, one of the major Bantu languages of Zaire. It uses X elements of the skeletal tier as timing units equivalent to the single beat duration of a short... -
Learn Zulu the way children do
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: SusanM. Suzman --- Linguistics Department,In order to master Bantu languages, learners have to acquire pervasive morphology, including a complex noun class and agreement system. First and second language learners of Zulu reflect different degrees of accessibility of complex morphology in the language. First language... -
The Changing Fortunes of Kiswahili in Tanzania
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Deo Ngonyani --- Department of Linguistics and Germanic, Slavic, Asian and African Languages, USAKiswahili in Tanzania is in conflict with vernacular African languages as well as with English. Data presented in this paper shows that there is a gradual shift to Kiswahili even in domains that were served by indigenous vernaculars. Some aspects... -
Mother-tongue education in primary schools in Malawi: From policy to implementation
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Grace Chiuye --- , USA Themba Moyo --- , South AfricaThis article argues that it is one thing to pronounce language-in-education policy statements and yet another to implement such pronounced policies. In the context of Malawi, the language policy has remained fragmented since 1996 when five indigenous languages were elevated... -
Circumfixes as emergent linguistic structures
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Rusandré Hendrikse --- Department of Linguistics, South Africa Mmemezi Mfusi --- Department of Linguistics, South AfricaOne of the manifestations of linguistic complexity is what Dahl (2004:2) describes as ‘grammatical constructions whose expression is longer than apparently necessary from a cross-linguistic perspective’. In the morphological system of Nguni languages there is a range of co-occurring affixes... -
Kiswahili riddles: Parallelism and social functions
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: DeoS Ngonyani --- Department of Linguistics and Germanic, Slavic, Asian and African Languages, USAKiswahili riddles (vitendawili) are children's puzzles presented in the form of precedent statements, queries or propositions eliciting responses, solutions or sequent (Harries, 1971, 1976; Gowlett, 1979; Okpewho, 1992). This article examines the linguistic structure of precedents in Kiswahili riddles. It... -
A review of the Angolan House snakes, genus Boaedon Duméril, Bibron and Duméril (1854) (Serpentes: Lamprophiidae), with description of three new species in the Boaedon fuliginosus (Boie, 1827) species complex
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jakob Hallermann --- Center of Natural History (CeNak), Zoologisches Museum, Universität Hamburg, Germany Luis MP Ceríaco --- Museu de História Natural e da Ciência da Universidade do Porto, Portugal Andreas Schmitz --- Natural History Museum of Geneva, Department of Herpetology and Ichthyology, Switzerland Raffael Ernst --- Museum of Zoology, Senckenberg Natural History Collections Dresden, Germany Werner Conradie --- Port Elizabeth Museum (Bayworld), South Africa Luke Verburgt --- National Geographic Okavango Wilderness Project, Wild Bird Trust, South Africa Mariana P Marques --- Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO), Rede de Investigação em Biodiversidade e Biologia Evolutiva (InBIO), Universidade do Porto, Portugal Aaron M Bauer --- Department of Biology and Center for Biodiversity and Ecosystem Stewardship, Villanova University, USAAn integrative taxonomic review of the genus Boaedon in Angola is provided. A molecular phylogeny, based on 99 genetic samples for which the mitochondrial markers 16S rRNA have been sequenced, reveals 23 monophyletic species-level groups in Africa and indicates the... -
Artificial neural networks and non-linear regression for quantifying the wood volume in Eucalyptus species
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tays Silva Batista --- , Brazil Larissa Pereira Ribeiro Teodoro --- , Brazil Gileno Brito de Azevedo --- , Brazil Glauce Taís de Oliveira Sousa Azevedo --- , Brazil Nerison Luis Poersch --- , Brazil Marcus Vinicius Vieira Borges --- , Brazil Paulo Eduardo Teodoro --- , BrazilWood volume is the variable that best represents the yield of planted forests, and several regression models are used in its estimation. Artificial neural networks (ANNs) are recognised for their accuracy and generalisation capacity associated with the quality and quantity... -
Sick and Healthy: Benatar on the Logic of Value
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Skott Brill --- Department of Philosophy, USADavid Benatar, in Better Never to Have Been, sets out two arguments in support of the view that coming into existence is always a net harm. Remarkably, the first argument seems to imply that coming into existence would be a... -
How Best to Prevent Future Persons From Suffering: A Reply to Benatar
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Brooke Alan Trisel --- P.O. Box 876 Hilliard, Ohio USA, 43026,David Benatar claims that everyone was seriously harmed by coming into existence. To spare future persons from this suffering, we should cease having children, Benatar argues, with the result that humanity would gradually go extinct. Benatar’s claim of universal serious... -
Distributive Justice in the State of Nature: An Egalitarian View
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Timothy Hinton --- Department of Philosophy and Religious Studies, USAThis paper proposes a novel egalitarian answer to the question: what initial distribution of the world’s resources could possibly count as just? Like many writers in the natural rights tradition, I take for granted that distributive justice consists in conformity... -
Is the Choice on Termination of Pregnancy Act Guilty of Disability Discrimination?
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Susan Hall --- Department of Philosophy, South AfricaSouth Africa's Choice on Termination of Pregnancy Act of 1996 implicitly expresses the attitude that the prenatal detection of foetal abnormality justifies selective abortion, even at a stage when abortion is in general morally prohibited. It will be argued that... -
Redrawing Kant's philosophy of mathematics
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Joshua M Hall --- , USAThis essay offers a strategic reinterpretation of Kant's philosophy of mathemat- ics in Critique of Pure Reason via a broad, empirically based reconception of Kant's conception of drawing. It begins with a general overview of Kant's philosophy of mathematics, observing... -
Taylor, Paul C. 2013. Race: A Philosophical Introduction. 2nd edition. Malden, MA: Polity Press
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Michael J. Monahan --- Philosophy Department, USA -
The opening of the future: Heidegger's interpretation of Rilke1
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Daniel Dahlstrom --- Department of Philosophy, USAThe aim of this paper is to revisit Heidegger's phenomenological reading of Rilke with a view to eliciting its implications for our future and that of phenomenology. The paper focuses on how Heidegger, despite regarding Rilke as a much-needed poet... -
Welcome to the phenomenological tradition!
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Lester Embree> --- Schmidt College of Arts and Letters, USAThis essay was written on the basis of what I call a ‘happy misunderstanding’, which is already conspicuous in the first paragraph below. Most misunderstandings have negative consequences. But in this case I was delighted to learn that I was... -
Neurophenomenology: an integrated approach to exploring awe and wonder1
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Lauren Reinerman-Jones --- Institute for Simulation and Training, University of Central Florida, USA Brandon Sollins --- Institute for Simulation and Training, University of Central Florida, USA Shaun Gallagher --- Department of Philosophy, USA Bruce Janz --- Department of Philosophy, USAAstronauts often report experiences of awe and wonder while traveling in space. This paper addresses the question of whether awe and wonder can be scientifically investigated in a simulated space travel scenario using a neurophenomenological method. To answer this question,... -
The concept of privilege: a critical appraisal
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Michael J. Monahan --- Department of Philosophy, USAIn this essay, I examine the use of the concept of privilege within the critical theoretical discourse on oppression and liberation (with a particular focus on white privilege and antiracism in the USA). In order to fulfill the rhetorical aims... -
FORECASTING: THE CHALLENGE TO THE AQUATIC SCIENCES. 1975–2000
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: KARLF. LAGLER --- Professor of Natural Resources and of Zoology, USA -
LOUISIANA'S ERODING COASTAL ZONE: MANAGEMENT ALTERNATIVES
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: IrvingA. Mendelssohn --- Center for Wetland Resources, USA R. Eugene Turner --- Center for Wetland Resources, USA KarenL. McKee --- Center for Wetland Resources, USAThe wetlands and protective barrier islands of coastal Louisiana are deteriorating and eroding at rates of crisis proportions. Annually Louisiana loses 130 km2 of wetlands. This high rate of coastal land loss is due to both natural and man-induced causes... -
Responding to linguistic diversity in South Africa: The contribution of language planning
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: T.G. Reagan --- , USATaalbeplanning as 'n toegepaste sosiolinguistiese aktiwiteit word bespreek, met klemplasing op die uitdaging wat die taalverskeidenheid in Suid-Afrika bied. Die bespreking handel onder meer oor taalbeleid in die Suid-Afrikaanse konteks, etnisiteit en taalbeplanning, en alternatiewe taalbeleidsrigtinge vir Suid-Afrika. -
Anaforiek in substandaardafrikaans
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: Susan Prinsloo --- Departement Afrikaans,In Afrikaans bestaan daar baie min ontledings van anaforiek soos wat dit voorkom in taal-in-gebruik. In hierdie studie word van die standpunt uitgegaan dat verwysing situasiegebonde is, daarom word anaforiek binne konteks bestudeer. Anaforiese verbande is in die tekste Houd-den-Bek... -
Die rol van anaforiek in die spontane mondelinge vertelling in Afrikaans
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: Susan Prinsloo --- Departement Afrikaans, Republiek van Suid-AfrikaIn die spontane mondelinge vertelling word sekere items gebruik wat 'n verwysende funksie het. Sommige van hierdie items, die anafore, kan ten opsigte van hul verwysende funksie nie los gesien word van ander items nie, naamlik die antesedente, wat 'n... -
Lexical Cohesion Between An Examination Question Prompt and its Answers
Item type: Journal Article • Journal: South African Journal of Linguistics • Authors: SusanL Tonder --- ,In hierdie artikel word verslag gedoen van 'n gedeelte van 'n navorsingstudie wat ondemeem is om die verband tussen die leksikale kohesie in akademiese skryfwerk van studeme en die koherensiemetings asook die akademiese vlakke van sodanige tekste te ondersoek. Tydens... -
CIRCULATION IN HIGHLY STRATIFIED SOUTHERN AFRICAN ESTUARIES
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: J.L. Largier --- , USA J.H. Slinger --- Council for Scientific and Industrial Research, South AfricaThe nature of estuarine circulation under highly stratified conditions is reviewed in the context of southern African estuaries that are small and have a constricted connection to the ocean. While the focus is on the generic hydrodynamic processes and features,... -
BOOK REVIEWS
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: JeffreyA. Thornton --- Southeastern Wisconsin Regional Planning Commission, USA Jenny Day --- Freshwater Research Unit Zoology Department, -
Systematics of the Thirteen-scaled Green Snake Philothamnus carinatus (Squamata: Colubridae), with the description of a cryptic new species from Central and East Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Eli Greenbaum --- University of Texas, USA Olivier S. G. Pauwels --- Royal Belgian Institute of Natural Sciences, Belgium Václav Gvoždík --- Institute of Vertebrate Biology of the Czech Academy of Sciences, Czech Republic Eugene R. Vaughan --- University of Texas, USA Teslin Chaney --- University of Texas, USA Michael Buontempo --- University of Texas, USA Mwenebatu M. Aristote --- Institut Supérieur d’Ecologie pour la Conservation de la Nature, Wandege M. Muninga --- Centre de Recherche en Sciences Naturelles, Democratic Republic of the Congo Hanlie M. Engelbrecht --- University of the Witwatersrand, South AfricaRecent molecular phylogenies of African Green Snakes suggested the geographically widespread species Philothamnus carinatus includes at least two distinct lineages. We utilised an integrative taxonomic approach with morphological and genetic data to reconcile the taxonomic status of these cryptic lineages,... -
Reader's perception of importance: What ASP readers think is important and why
Item type: Journal Article • Journal: Southern African Journal of Applied Language Studies • Authors: Susan Manson --- Academic Support Programme, Suellen Shay --- Academic Support Programme,The authors conducted a study with Psychology I Academic Support Programme (ASP) students and tutors which explored readers' perception of importance in reading a Psychology I text. They explored a) what readers think is important and b) what strategies readers... -
Ecology of African Pastoralist Societies
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: KathleenA Galvin --- Department of Anthropology, USA2008, James Currey Publishers, Box 242, 266 Banbury Road, Oxford OX2 7DL, UK -
Dry Times: Blueprint for a Red Land
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: MaríaE Fernández-Giménez --- Department of Forest, Rangeland and Watershed Stewardship, USA2009, CSIRO Publishing, PO Box 1139, Collingwood, Victoria 3066, Australia -
Biomass production and water use efficiency of grassland in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: AR Palmer --- , South Africa A Short --- , South Africa IAM Yunusa --- , AustraliaUsing the results from a long-term grazing trial in the Dry Highland Sourveld of the KwaZulu-Natal province, we prepared a water use efficiency value (the ratio of the increment in annual biomass to total annual evapotranspiration) for this rangeland type... -
Development and sustainable management of rangeland commons – aligning policy with the realities of South Africa's rural landscape
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Susanne Vetter --- Department of Botany, South AfricaPolicy affecting the rangeland commons in South Africa has been based largely on management models developed for large-scale commercial farming. This paper examines the current policy situation and discusses some of the most pervasive ecological and economic assumptions that have... -
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... -
Soil characteristics under legume and non-legume tree canopies in signalgrass (Brachiaria decumbens) pastures
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Jose CB Dubeux --- North Florida Research and Education Center, USA Mario de Andrade Lira --- Instituto Agronômico de Pernambuco (IPA), Brazil Mercia V Ferreira dos Santos --- Zootecnia, Brazil Jim Muir --- Borlaug Institute, South Africa Monica A da Silva --- Zootecnia, Brazil Vicente I Teixeira --- Zootecnia, Brazil Alexandre C Leão de Mello --- Zootecnia, BrazilTree canopies can change soil environments. Our study looked at soils 10%, 50%, 100% and 150% the distance from tree trunk to canopy edge of leguminous sabiá (Mimosa caesalpiniifolia Benth.) and espinheiro (Machaerium aculeatum Raddi) and non-legume cajueiro (Anacardium occidentale... -
Silviculture and Genetics of Pinus kesiya for Planting Degraded Pasture Land
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: J.A. Wright --- , USA N. Isaza --- , USAThe conifer species, Pinus kesiya Royle ex Gordon, is an important part of the ecology within the indigenous range of South-east Asia as well as in sustainably managed plantations in a number of countries. Planting with the species in Colombia... -
Commercial Harvesting of Pinestraw in the South-Eastern United States
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Janusz Zwolinski --- , RSA Harold Quicke --- , USAPinestraw is a name used in the USA for pine needlefall or pine litterfall. Harvesting of pinestraw from stands of Pinus taeda, P. elliottii and P. palustris has become a US $150 million business in the southeastern USA. Pinestraw is... -
Staining roots to determine root growth potential of Pinus taeda
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Janusz Zwolinski --- Forestry Programme, South Africa CurtM. Peterson --- Department of Botany and Microbiology, USA Colin Dyer --- , South AfricaRoot growth potential (RGP) consists of two components: elongation of existing roots and initiation of new roots. Currently, RGP is determined on planting stock from which any “white roots” present at the start of the test are removed. This study... -
Addressing Urgent Community Mental Health Needs in Rwanda: Culturally Sensitive Training Interventions
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lisa Lopez Levers --- Duquesne University, USA Desire Kamanzi --- Kigali Health Institute, Rwanda Donatilla Mukamana --- Kigali Health Institute, Rwanda Kirrily Pells --- Institute of Commonwealth Studies, University of London, Dan-Bush Bhusumane --- Duquesne University and University of Botswana,Rwandan leaders in the health and educational sectors have begun to discuss the necessity for establishing culturally appropriate community-based mental health counselling services in Rwanda, especially trauma counselling. The need for a community psychology approach is anchored in the lingering... -
Learning from Narratives: Understanding the Impact of Childhood Abuse on Interpersonal Functioning Later in Life
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gwen Vogel --- , USA Sharon Gschaider-Kassahun --- , USAThis study used a survey and narrative approach to understand the link between childhood abuse experiences and interpersonal functioning later in life. Participants for the children's survey were 88 children (males = 43; females = 45; age range 5 to... -
A Violent Heritage: Non-Governmental Organizations as an Arena for the Reproduction of Childhood Violence in the Context of HIV/AIDS
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Susan de la Porte --- University of KwaZulu-Natal,This article used ethnographic fieldwork to explore the overt and covert patterns of childhood violence experienced in a community on the north of Durban, South Africa. Participants included nine female teachers, two hundred pre-school children (age range 6 months to... -
Racial/Ethnic Identity among Creole Peoples in Mauritius
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Christin M. Jungers --- Franciscan University of Steubenville, USA Jocelyn Gregoire --- Duquesne University, USA Leslie Slagel --- Women's Center & Shelter of Greater Pittsburgh, USAThis article provides the findings of qualitative research into the perceptions of racial/ethnic identity among the Creole community of Mauritius. Participants were 24 Creole Mauritians (males = 16, females = 8, age range = 22–69 years). Interview data were collected... -
Community Counselling: Values and Practices
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sandy Lazarus --- University of South Africa and University of Western Cape, South Africa Donna Baptiste --- University of Illinois at Chicago, USA Mohamed Seedat --- University of South Africa, South AfricaThis article focuses on community counselling, specifically in African contexts. A community psychology approach is used as a framework for this discussion. This approach, linked to a critical perspective, highlights the importance of going beyond individualist assessments and interventions towards... -
Community Counselling in African Contexts
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sandy Lazarus --- University of South Africa & University of Western Cape, South Africa Donna Baptiste --- University of Illinois at Chicago, USA Mohamed Seedat --- University of South Africa, South AfricaThis article explores community counselling as a form of professional practice for psychologists, with a particular focus on practices that are relevant in African contexts. The discussion identifies and discusses various models of practice identified in community psychology, including an... -
Child Abuse and Neglect: Counseling and Healing Practices with People of African Ancestry
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nareadi Phasha --- University of South Africa, Almon Shumba --- Central University of Technology, South Africa Ngozi Okose --- Private Practice, USA Pilot Mudhovozi --- University of Venda, South Africa Seter Siziya --- University of Zambia,Communities worldwide condemn child abuse and agree that any form of harm should be mitigated by culturally sensitive methods. In African settings such methods are underrepresented in the literature. This article sought to identify and highlight the healing practices that... -
Voices of African Traditional Healers: Cultural Context and Implications for the Practice of Counselling in Sub-Saharan Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lisa Lopez Levers --- Duquesne University, USA Lynne Radomsky --- University of the Western Cape, South Africa Tamara Shefer --- University of the Western Cape, South AfricaThe healing paradigm implicit in many sub-Saharan African cultures is embedded in African cosmology, and thus the recognition of this is essential for understanding Traditional African Healing practices and implementing collaborative counselling practices. To this end, this article focuses on... -
A Meta-Theoretical Framework for Counselling People of African Ancestry: An Ecologically Oriented Response to the Special Section Articles
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lisa Lopez Levers --- Duquesne University, USAThis article is a review of the preceding six articles included in the Special Section related to the subject of counselling people of African ancestry. The major objective was to ascertain whether any recurring themes might be identified, and whether... -
Psychometric Properties and Factorial Structure of the State Trait Anxiety Inventory-Trait Version (STAI-T) in Caribbean University Students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Donna-Maria B. Maynard --- University of the West Indies, Michael H. Campbell --- University of the West Indies, Dwayne Devonish --- University of the West Indies, Teddy Leon --- University of the West Indies, Maisha K. Emmanuel --- University of the West Indies, Jonathan W. Roberti --- New College of Florida, USAThe study investigated the psychometric properties of the State Trait Anxiety Inventory—Trait Scale (STAI-T: Spielberger, 1983) in a Caribbean university student sample. Participants were 415 undergraduate students (75% female) who completed the State-Trait Anxiety Inventory-Trait Version (STAI-T; Spielberger, 1983), Beck... -
Exploring the Intersecting Health Risks of Substance Abuse, Sexual Risk, and Violence for Female South African Teen Dropouts
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kyla Marie Sawyer-Kurian --- North Carolina Central University, USA Felicia A. Browne --- RTI International, USA Tara Carney --- Medical Research Council, South Africa Petal Petersen --- Medical Research Council, South Africa Wendee M. Wechsberg --- RTI International, USAThe study sought to better understand the cultural contexts of the risks for adolescent females who have dropped out of school. Focus groups were conducted with 37 Black and Coloured females aged 13 to 17 in Cape Town, South Africa... -
Ethnic Identification as Contributor to the Development of Moral Identity in Child-Headed Households
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacqueline Pretorius --- Private Practice, Piet Retief, Susanne Jacobs --- North West University, South Africa Marie van Reenen --- North West University, South AfricaThis study explored whether ethnic membership was a core construct in the moral identity development of adolescents in Zulu child-headed households. A convenience sample of 60 participants (31 male and 29 female) were recruited for the study from a mixed... -
Research Agenda to Facilitate Community Participation In HIV Vaccine Research: A Participatory Approach
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Anthea Lesch --- Stellenbosch University, South Africa Sagri Singh --- International AIDS Vaccine Initiative Country and Regional Programmes, USA Zuhayr Kafaar --- Stellenbosch University, South Africa Leslie Swartz --- Stellenbosch University, South Africa Alexandre Menezes --- International AIDS Vaccine Initiative Country and Regional Programmes, USAThis article reports on a participatory process to generating a research agenda to guide research on community participation in HIV vaccine research. Community members representing stakeholder parties involved in the HIV vaccine research enterprise were invited to participate in the... -
Evaluation of the Effectiveness of Protection Orders for Female Victims of Intimate Partner Violence in Vhembe District of South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council, South Africa Supa Pengpid --- University of Limpopo, South Africa Judith McFarlane --- Texas Woman's University, USA Mercy Banyini --- University of Venda, South AfricaThe aim of this study was to assess the value of protection orders in reducing intimate partner violence against women in the Vhemba district of South Africa. In a one-group pre-post test study design 118 women who had received a... -
NORMAL NEARNESS SPACES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H.L. Bentley --- Department of Mathematics, USAA concept of normality for nearness spaces is introduced which agrees with the usual normality in the case of topological spaces, is hereditary, and is preserved under the taking of the nearness completion. It is proved that the nearness product... -
GRAPHIC EXTENSIONS OF MAPPINGS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: F.A. Delahan --- , USA G.E. Strecker --- , USAGiven a mapping f: X → Y and an extension e: X → [Xtilde] of X, the restriction of the projection Π: [Xtilde] X Y → Y to the closure of the graph of f in [Xtilde] X Y is... -
EULER-LAGRANGE EQUATIONS AS DIVERGENCE CONDITIONS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Hanno Rund --- Department of Mathematics, USAAny multiple integral problem in the calculus of variations gives rise to a pair of distributions on the configuration space. Whenever these distributions are integrable, the Euler-Lagrange equations are equivalent to the condition that the divergences of a set of... -
THE CONSTRUCTION OF THE COMPLETE FIGURE IN THE CALCULUS OF VARIATIONS OF MULTIPLE INTEGRALS: A DIRECT APPROACH
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Hanno Rund --- Department of Mathematics The, USAThe field-theoretic approach to the calculus of variations of multiple integrals, as initiated by Carathéodory, is based on the systematic use of certain field components that exist if and only if a determinant whose entries are defined uniquely in terms... -
HOMOLOGY AND COHOMOLOGY FOR MEROTOPIC AND NEARNESS SPACES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H.L. Bentley --- , USAIt is shown that the Alexander cohomology groups for merotopic spaces satisfy certain variants of the Eilenberg—Steenrod axioms for a cohomology theory. Furthermore, for a nearness space, the homology and cohomology groups coincide with the corresponding groups of its completion. -
GAUGE TRANSFORMATIONS OF TYPE (0,2) TENSOR FIELDS AND ASSOCIATED VARIATIONAL PRINCIPLES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Hanno Rund --- Department of Mathematics The, USAThis article is concerned with variational problems whose field variables are functions on a product manifold M x G of two manifolds M and G. These field variables are denoted by ψhαj in local coordinates (h, j = 1,…,n =... -
GEODETIC GAMES FOR GRAPHS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Fred Buckley --- , USA Frank Harary --- , USALet S be a subset of the vertex set V(G) of a nontrivial connected graph G. The geodetic closure (S) of S is the set of all vertices on geodesics between two vertices in S. The first player A chooses... -
ADDENDUM TO MY PAPER “GAUGE TRANSFORMATIONS OF TYPE (0,2) TENSOR FIELDS AND ASSOCIATED VARIATIONAL PRINCIPLES”
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Hanno Rund --- Program in Applied Mathematics, USAIt is shown that the theory presented in the paper cited in the title can be extended almost effortlessly to encompass a class of gauge transformations that is considerably more general than that treated originally. -
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 -
SELF-ADJOINTNESS IN THE WEYL LIMIT CASES. THE ROLE OF BOUNDARY CONDITIONS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: AllanM. Krall --- Department of Mathematics, USAThe role of boundary conditions in assuring self-adjointness for the singular second order Sturm-Liouville operator -yn + qy is discussed, both in the limit circle and limit point cases. -
BIVARIANT LONG EXACT SEQUENCES I
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: TempleH Fay --- Department of Mathematics, USA KeithA Hardie --- Department of Mathematics, R S AGiven a pair of short exact sequences -
A CHARACTERIZATION OF STRICTLY CONVEX LINEAR 2-NOBMED SPACES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sizwe Mabizela --- Dept of Mathematics, USAIn this note we extend the concept of best approximation to linear 2-normed spaces. We define proxi-minal, semi-Chebyshev, and Chebyshev sets in linear 2-normed spaces. A linear 2-normed space X is said to be strictly convex if for all X,Y,Z,... -
A NOTE ON RADICALS FOR HEMIRINGS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: D.M. Olson --- , USA A.C. Nance --- , USAThe concept of upper radicals for hemirings is developed and used to establish results similar to those in ring theory for special class of hemirings. The class of all nil hemirings is shown to be a radical class. -
ESSENTIALLY ALGEBRAIC CATEGORIES OF PARTIAL ALGEBRAS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H.L. Bentley --- , USA N. Murthy --- , USAWe consider categories of partial algebras satisfying given identities and such that the domain of each operation is given by equations in the earlier operations. Without using formal logic, we make all of the above concepts precise. We then show... -
REPRESENTABILITY OF PARTIAL MORPHISMS IN TOPOLOGICAL AND MONOTOPOLOGICAL CONSTRUCTS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Friedhelm Schwarz --- Department of Mathematics, USAThe paper continues recent research on the representability of partial morphisms in topological constructs with constants. It contains new characterizations for the fact that this property is inherited by bireflective subcategories. Possibilities and limitations of generalization to topological and monotopological... -
TORSION-FREE ABELIAN GROUPS WITH FINITE RANK ENDOMORPHISM RINGS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H. Pat Goeters --- Department of Algebra, Combinatorics And Analysis, 120 Mathematics Annex, USAWe show that if A and C are torsion-free abelian groups with ∩{ker f|f: A → C} = 0 = ∩{ker g|g: C → A}, and if A has a left Artinian quasi-endomorphism ring then A and C share a... -
COMPUTING HOMOTOPY GROUPS OF A HOMOTOPY PULLBACK
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: K.A. Hardie --- Department of Mathematics, South Africa K.H. Kamps --- , Germany H. Marcum --- , USASecondary structure of an exact sequence of Maya-Vietoris type associated to a simply-connected homotopy pullback is exploited to yield a technique for computing its higher homotopy groups. The information required consists of the homotopy groups of the original spaces, the... -
A WEAKER FORM OF BAER'S SPLITTING PROBLEM OVER VALUATION DOMAINS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: L. Fuchs --- Department of Mathematics, USA G. Viljoen --- Department of Mathematics, RSAEklof-Fuchs [3] have shown that over an arbitrary valuation domain R, the modules B which satisfy Ext 1/R (B,T) = 0 for all torsion R-modules T are precisely the free R-modules. Here we modify the problem and describe all R-modules... -
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 -
COPURE INJECTIVE MODULES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: EdgarE. Enochs --- Department of Mathematics, USA Overtoun M. G. Jenda --- Department of Algebra, USAA module is said to be copure injective if it is injective with respect to all modules A ⊂ B with B/A injective. We first characterize submodules that have the extension property with respect to copure injective modules. Then we... -
REGULAR LEFT DEFINITE BOUNDARY VALUE PROBLEMS OF EVEN ORDER
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: AllanM. Krall --- McAllister Building, USAThe differential operator -
A WEIGHTED HARDY'S INEQUALITY AND NONOSCILLATORY DIFFERENTIAL EQUATIONS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: R.C. Brown --- Department of Mathematics, USA D.B. Hinton --- Department of Mathematics, USAIn this paper we determine the exponents α0, α, β0, β for which the Hardy inequality -
ORDER STARS AND THE MAXIMAL ACCURACY OF STABLE DIFFERENCE SCHEMES FOR THE WAVE EQUATION
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Rosemary Renaut --- Department of Mathematics, USA J.H. Smit --- Department of Mathematics, South AfricaThe wave equation utt = c2uxx is solved by means of a three-time-level difference scheme, symmetric in time and space, of the form -
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... -
ON THE STRUCTURE OF MINIMAL R n ACTIONS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H.B. Keynes --- , USA N.G. Markley --- Department of Mathematics, USA M. Sears --- Department of Computational and Applied Mathematics, RSAIn this paper we study several concepts and models which are relevant in describing both the topological and dynamical structure of a typical R n flow. Some of these ideas originated in our earlier papers, and those of other... -
ON CUP-ONE AND TODA BRACKET
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: K.A. Hardie --- Department of Mathematics, South Africa M.E. Mahowald --- Department of Mathematics, USAThe definition of the cup-one construction in various cases is recalled. A variation expressible in terms of the Toda bracket is given, enabling nontriviality of Toda brackets of a certain type to be established in a rather simple way from... -
WELL-COVERED GRAPHS: A SURVEY
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: MichaelD. Plummer --- Department of Mathematics, USAA graph G is well-covered (or w-c) if every maximal independent set of points in G is also maximum. Clearly, this is equivalent to the property that the greedy algorithm for constructing a maximal independent set always results in a... -
SUBLINEAR OPERATORS BETWEEN BANACH LATTICES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: W.A. Feldman --- Department of Mathematical Sciences, USAA class of sublinear operators between Banach lattices E and F are characterized when E and F have representations as extended real-valued functions on X and Y, respectively. It is shown that T is M-sublinear if and only if T... -
Functional Calculus, Integral Representations, and Banach Space Geometry
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ian Doust --- School of Mathematics, Australia Ralph deLaubenfels --- Department of Mathematics, USAOn suitable Banach spaces, the existence of a certain functional calculus for an operator is equivalent to that operator having a certain integral repreaentation with respect to some family of projections. In this paper we consider the problem of identifying... -
EXTREME POINTS IN LARGE SUBSPACES OF l1
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: RobertH. Lohman --- Department of Mathematics and Computer Science, USAIf Y is a closed, finite-codimensional subspace of l1 the extreme points of the closed unit ball BY have finite support. This is used to show that every member of BY is expressible as an infinite convex series of extreme... -
COMPLETIONS AND CATEGORICAL COMPACTNESS FOR NILPOTENT GROUPS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: TempleH. Fay --- , Republic of South Africa GaryL. Walls --- , USAWe consider reflection functors in the category of nilpotent groups satisfying certain exactness properties for which the Mal'cev completion functor and the p-cotorsion completion functors are prototypical examples. Each of these functors defines a generalized torsion theory, which in turn... -
CONSTRAINED CONTROLLABILITY IN NON REFLEXIVE BANACH SPACES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Diomedes Barcenas --- , Venezuela Joe Diestel --- , USAThroughout the literature on optimal control in Banach spaces, hypotheses like “separable and reflexive” are frequently encountered. In this note we consider one such case, studied by Peichl and Schappacher. Using techniques from Banach space theory and the theory of... -
SOME PROBLEMS IN THE INTERFACE BETWEEN NUMBER THEORY, HARMONIC ANALYSIS AND GEOMETRY OF EUCLIDEAN SPACE
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Per Enflo --- Department of Math Sciences., USA -
CONVERGENCE OF THE HEAT KERNEL AND THE RESOLVENT KERNEL ON DEGENERATING HYPERBOLIC RIEMANN SURFACES OF FINITE VOLUME
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jay Jorgenson --- Department of Mathematics, Usa Rolf Lundelius --- Department of Mathematics, Republic of South AfricaDegeneration of an hyperbolic surface of finite volume (compact or non-compact) is precisely defined. Briefly, such a surface is continuously deformed so that the lengths of one or more simple, closed geodesics (called pinching geodesics) approach zero. In the limit,... -
ON THE DICHROMATIC INDEX OF A DIGRAPH
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Frank Harary --- Department of Computer Science, USA PaulC. Kainen --- Department of Computer Science, USALet D be a digraph. The arc (u, v) is adjacent to the arc (w, x) if v = w. Let r(D) be the smallest number of arc colors so that no two adjacent arcs have the same color. Let... -
FLATNESS AND THE RING OF QUASI-ENDOMORPHISMS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ulrich Albrecht --- Department of Mathematics, USA H. Pat Goeters --- Department of Mathematics, USAThis paper investigates torsion-free abelian groups A which are Q E-flat, i.e. for which Q A is flat as an Q E(A)-module. It is shown that a torsion-free A has this property iff Tor1 (M, A) is torsion for all... -
*—BI—IDEALS IN RADICAL THEORY OF INVOLUTION RINGS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: UsamaA. Aburawash --- Department of Mathematics, Faculty of Science,If a radical class is closed under involution in every ring with involution then the radical theoretic conditions involving *-bi-ideals are equivalent to the corresponding conditions concerning bi-ideals without involution. -
FUNCTORIAL PROPERTIES OF THE HOPF INVARIANT I
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: HowardJ. Marcum --- , USAHomotopy operations Θ: [ΣY, U] → [ΣY, V] which are natural in Y are considered. In particular a technique used in the definition of the Hopf invariant (as treated by Berstein-Hilton) shows that any fibration p: E → B with... -
ON THE UPPER MAJORANT PROPERTY
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Inna Chervoneva --- Mathematics Department, USA Vladimir Kadets --- Mathematics Department, USA Michael Yampolsky --- Mathematics Department, USAWe prove that the characters of an infinite metrizable compact abelian group G form a strictly conditional (SC) system if and only if the system fails the upper majorant property (UMP). Then we show that a homogeneous system is either... -
HEREDITARY SOBRIETY AND THE CARDINALITY OF T 1 TOPOLOGIES ON COUNTABLE SETS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: S.F. Barger --- Department of Mathematics, USAA T 0 space is called sober provided the only irreducibly closed sets are the closures of singletons; a closed set is irreducibly closed if it cannot be written as a union of two of its proper closed subsets. The... -
POWERSET OPERATOR BASED FOUNDATION FORPOINT-SET LATTICE-THEORETIC (POSLAT) FUZZY SET THEORIES and TOPOLOGIES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Stephen Ernest Rodabaugh --- Department of Mathematics & Statistics, USAThis paper sets forth in detail point-set lattice-theoretic or poslat foundations of all mathematical and fuzzy set disciplines in which the operations of taking the image and pre-image of (fuzzy) subsets play a fundamental role; such disciplines include algebra, measure... -
CONNECTEDNESS, DISCONNECTEDNESS AND CLOSURE OPERATORS: FURTHER RESULTS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: G. Castellini --- Department of Mathematics, USALet X be an arbitrary category with an (E, M)-factorization structure for sinks. A notion of constant morphism that depends on a chosen class of monomorphisms was previously used to provide a generalization of the connectedness-disconnectedness Galois connection (also called... -
SMYTH COMPLETENESS IN TERMS OF NETS: THE GENERAL CASE
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Philipp Sünderhauf --- Department of Mathematics and Statistics, USASmyth completeness is the appropriate notion of completeness for quasi-uniform spaces carrying an additional topology to serve as domains of computation [2, 3]. The goal of this paper is to provide a better understanding of Smyth completeness by giving a... -
ON Subspaces OF NON-Reflexive Orlicz Spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: J. Alexopoulos --- Department of Mathematics, USAKadec and Pelczýnski have shown that every non-reflexive subspace of L 1 (μ) contains a copy of l 1 complemented in L 1(μ). On the other hand Rosenthal investigated the structure of reflexive subspaces of L 1(μ) and proved that... -
HOMOGENEOUS FUNCTIONS DETERMINED BY CYCLIC SUBMODULES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: C.J. Maxson --- Department of Mathematics, USA J.H. Meyer --- Department of Mathematics, Republic of South AfricaFor a unital module V over a commutative ring R, let C denote the collection of cyclic submodules. The ring ϵR(V;C) = {f ε EndR V |f(C) ⊆C, ∀C εR (V;C) has been the object of several recent studies in... -
DOUGLAS BARKER SEARS: HIS WORK IN DIFFERENTIAL EQUATIONS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: P.J. Browne --- Department of Mathematics and Statistics, Canada W.N. Everitt --- Department of Mathematics and Statistics, UK I.W. Knowles --- Department of Mathematics, USA -
THE BAILEY TRANSFORM AND D.B. SEARS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: GeorgeE. Andrews --- Department of Mathematics, Eberly College of Science, Usa Douglas Bowman --- Department of Mathematics, UsaIn recent years, the pioneering q-series methods initiated by Rogers and extended by Bailey have found extensive applications in number theory and physics. In this paper we show how some of the work of D.B. Sears can be understood and... -
COMBINATORICS OF OPEN COVERS VI: SELECTORS FOR SEQUENCES OF DENSE SETS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Marion Scheepers --- Department of Mathematics, UsaWe consider the following two selection principles for topological spaces: -
A HILBERT C*-MODULE VIEW OF SOME SPACES RELATED TO PROBABILISTIC CONDITIONAL EXPECTATION
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Alan Lambert --- Department of Mathematics, USAMeasure theoretic conditional expectation is used to construct certain operator spaces. The conditional expectation induces a Hilbert module structure on these spaces. Application is made of Kasparov's theorem to examine certain multiplier and compact operator algebras associated with the module... -
RELATION OF THE PRIME RADICAL and THE RADICAL OF A SUBRING GENERATED BY THE SYMMETRIC ELEMENTS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Leonard Casciotti --- Mathematics and Computer Science Department, USAA new radical called the j-radical is defined for S, the symmetric elements, determined by the Jordan multiplication rather than on the quadratic multiplication for prime radicals. If the ring is 2-torsion free then these two notions are seen to... -
MULTIPLIERS OF MATRIX SPACES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: JamesC. Magee --- Department of Mathematics, USA WilliamH. Ruckle --- , USASuppose X and Y are FK spaces in which ϕ the span of the coordinate vectors (en) is dense. Let L(X,Y) denote the space of all matrices of the form Ei(T(ej)) as T ranges over all continuous linear operators from... -
WELL-BOUNDED OPERATORS ON NON-REFLEXIVE BANACH SPACES II
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Qingping Cheng --- Institute of Mathematics, Hebrew University of Jerusalem, Givat-Ram, Jerusalem, Israel, Ian Doust --- School of Mathematics, University of New South Wales, Sydney, NSW, Australia,In this paper we examine the relationship between the various subclasses of well-bounded operators. Although some of these subclasses have been shown to coincide on certain families of Banach spaces, we show here that apart from these previously known cases,... -
BOUNDED SUBSETS AND WEAK REALCOMPACTNESS CONDITIONS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: S. Kundu --- Department Of Mathematics, Indian Institute of Technology, Delhi, New Delhi, India, A. B. Raha --- Stat-Math Division, Indian Statistical Institute, Calcutta, India, M. A. Swardson --- Department of Mathematics, Ohio University, Athens, Ohio, USA,A subset A of X is bounded if every continuous real-valued function on X is bounded on A. A completely regular Hausdorff space X is said to have the bz-property if every bounded subset of X is contained in a... -
ANALYTIC AND PROBABILISTIC THEORY OF ADDITIVE ARITHMETICAL SEMIGROUPS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Wen-Bin Zhang --- Department of Mathematics, USAThis is a short survey of the forthcoming book Number Theory Arising From Finite Fields—analytic and probabilistic theory. We give details of a number of the main theorems in the book. These are abstract prime number theorems, mean-value theorems of... -
NORM ONE PROJECTIONS ON BANACH SPACES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A.K. Gaur --- Department of Mathematics, USAThis note deals with a small but an important observation of hermitian operators on Banach spaces. It is known that if A is a complex Banach space, B(A) is the set of all operators on A, and H(B(A)) is the... -
OBSERVATIONS ABOUT THE PROJECTIVE TENSOR PRODUCT OF BANACH SPACES, I—
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Qingying Bu --- Department of Mathematics, USA Joe Diestel --- Banach Center, Department of Mathematical Sciences, USAA sequential description of the projective tensor product lp⊗X, is given. This description allows us to show the inclusion lp⊗X, into lp⊗X, is a semi-embedding. As a consequence, if X has the Radon-Nikodym property so does lp⊗X, A discussion of... -
GRADED MATLIS DUALITY AND APPLICATIONS TO COVERS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: EdgarE. Enochs --- Department of Mathematics, USA J.A. López-Ramos --- Department of Mathematics, USAWe study homological properties of graded Matlis duality and apply them to get covers by Gorenstein gr-projective modules. We show that these covers are minimal graded maximal Cohen-Macaulay approximations in some cases. -
ON THE STRICT COMPLETION OF A NEARNESS SPACE
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H.L. Bentley --- , USA H. Herrlich --- , GermanyThe strict completion of a nearness space was constructed in 1974 in Herrlich's original paper on nearness. We present an external characterization of this completion. Among the consequences of this result is the fact that for nearness spaces X and... -
DISCONNECTEDNESS CLASSES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: G. Castellini --- Department of Mathematics, USALet X be an (E, M)-category for sinks. A notion of disconnectedness with respect to a closure operator C on X and to a class of X-monomorphisms N is introduced. This gives rise to the notion of N-disconnectedness class, a... -
A Wilf-Zeilberger Approach to Sums of Choi, Zörnig and Rathie
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Samantha Dahlberg --- Department of Mathematics, USA Timothy Ferdinands --- Department of Mathematics and Statistics, USA Akalu Tefera --- Department of Mathematics, USAIn this paper we present elegant and elementary proofs of identities that involve sums of the type in the title using Zeilberger's algorithm and the Wilf-Zeilberger proof style. -
Operators on the
∞-spaces of Bourgain and Delbaen Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Kevin Beanland --- Department of Mathematics and Applied Mathematics, USA Lon Mitchell --- Department of Mathematics and Applied Mathematics, USAIn 1980, J. Bourgain and F. Delbaen constructed two classes and of ∞-spaces each exhibiting many surprising properties. In particular, the members of each possess the Schur property and the members of are somewhat reflexive. In this paper, for... -
The cardinal inequality α2 < 2α
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Horst Herrlich --- , Germany Paul Howard --- Department of Mathematics, USA Eleftherios Tachtsis --- Department of Statistics and Actuarial-Financial Mathematics, GreeceIn ZFC set theory (i.e., Zermelo-Fraenkel set theory with the Axiom of Choice (AC)) any two cardinal numbers are comparable. However, this may not be valid in ZF (i.e., Zermelo-Fraenkel set theory modulo AC). In this paper, we study the... -
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... -
Shifts on products of banach spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: S. P. Moshokoa --- Department of Mathematical Sciences, South Africa M. Rajagopalan --- Department of Mathematics, USA K. Sundaresan --- Department of Mathematics, USAIt is well-known in the literature that the product of two Banach spaces does not necessarily admit a shift even with the case where each factor has a shift. The purpose of this paper is to explicitly construct a complex... -
Spectral synthesis and other results in some topological algebras of vector-valued functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Terje Hõim --- Dept. of Mathematics, USA D. A. Robbins --- Dept. of Mathematics, USAUsing results from theory of bundles of topological vector spaces, we prove some spectral synthesis and other results in certain topological algebras of vector-valued functions. In particular, we extend and generalize results of J.W. Kitchen and the second-named author (1996)... -
Copies of ℓ 1 in positive tensor products of Orlicz sequence spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Qingying Bu* --- Department of Mathematics, USA Donghai Ji --- Department of Mathematics, China Yongjin Li† --- Department of Mathematics, ChinaLet X be a Banach lattice and ℓ ϕ be an Orlicz sequence space associated to an Orlicz function ϕ with the Δ2-condition. In this paper, we prove that (i) the positive injective tensor product of ℓ ϕ... -
On the Urysohn number of a topological space
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Maddalena Bonanzinga --- Dipartimento di Matematica, Italia Filippo Cammaroto --- Dipartimento di Matematica, Italia Mikhail Matveev* --- Department of Mathematical Sciences, USAThe Urysohn number of a space X is U(X) = min{τ: for every subset A ⊂ X such that |A| ≥ τ one can pick neighborhoods U a ∋ a for all a ∈ A so that Some known... -
Geometric properties on non-complete spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: FranciscoJ. García-Pacheco --- Department of Mathematics, Spain Bentuo Zheng* --- Department of Mathematical Sciences, USAThe purpose of this paper is to study certain geometrical properties for non-complete normed spaces. We show the existence of a non-rotund Banach space with a rotund dense maximal subspace. As a consequence, we prove that every separable Banach space... -
Domination edge lift critical trees
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: WyattJ. Desormeaux --- Department of Mathematics, South Africa TeresaW. Haynes --- Department of Mathematics, USA MichaelA. Henning* --- Department of Mathematics, South AfricaLet uxv be an induced path with center x in a graph G. The edge lifting of uv off x is defined as the action of removing edges ux and vx from the edge set of G, while adding the... -
On H-closed and U-closed functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Filippo Cammaroto --- Dipartimento di Matematica, Italy Andrei Catalioto --- Dipartimento di Matematica, Italy Jack Porter --- Department of Mathematics, USAIn this article, we extend the work on H-closed functions started by Cammaroto, Fedorchuk and Porter in 1998. Also, U-closed functions are introduced and characterized in terms of filters and adherence. The hereditary and productivity properties are examined and developed... -
Cavalieri integration
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: E.R. Ackermann --- Computational and Applied Mathematics Department, USA T.L. Grobler --- Department of Electrical, Electronic and Computer Engineering, South Africa W. Kleynhans --- Department of Electrical, Electronic and Computer Engineering, South Africa J.C. Olivier --- School of Engineering, Australia B.P. Salmon --- Department of Electrical, Electronic and Computer Engineering, South Africa A.J. van Zyl --- Department of Mathematics and Applied Mathematics, South AfricaWe use Cavalieri's principle to develop a novel integration technique which we call Cavalieri integration. Cavalieri integrals differ from Riemann integrals in that non-rectangular integration strips are used. In this way we can use single Cavalieri integrals to find the... -
On the solutions of the exponential Diophantine equation a x + b y = (m 2 + 1) z
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bo He --- Department of Mathematics, P.R. China Alain Togbé --- Mathematics Department, USA Shichun Yang --- Department of Mathematics, P.R. ChinaIn this paper, we consider the Diophantine equation a x + b y = c z . Combining Laurent's result on lower bounds for linear forms in two logarithms, Bugeaud's result on upper bounds for the p-adic... -
Equivalence domination in graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: S. Arumugam --- Core Group Research Facility (CGRF), National Centre for Advanced Research in Discrete Mathematics (n-CARDMATH), India Mustapha Chellali --- LAMDA-RO Laboratory, Department of Mathematics, Algeria TeresaW. Haynes --- Department of Mathematics, USAFor a graph G = (V, E), a subset S ⊆ V (G) is an equivalence dominating set if for every vertex v ∈ V (G) \ S, there exist two vertices u, w ∈ S such that the subgraph... -
(ϕ, ψ)-Mutations of commutative monoids with maximal endomorphism semirings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: K-T Howell --- Department of Mathematical Sciences, South Africa C.J. Maxson --- Department of Mathematics, USAWe use commuting idempotent endomorphisms of a commutative monoid 〈S, ·, e〉 to define a new operation, ⊙, on S to obtain a medial semigroup 〈S, ⊙〉. We investigate the maximality of the semiring 〈End〈S, ⊙〉, ⊙, ◦〉 as a... -
The sequential organisation of South African business-news interview openings
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: SusanI BrokenshaThe principal aim of this research article is to explore whether the discourse features of news interview openings identified by Clayman (1991) are replicated in opening segments of South African business-news interview talk. An important justification for this discourse-based study... -
South African news interview talk: The interviewer's maintenance of a position of neutrality
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: SusanI BrokenshaOne of the aspects Heritage and Greatbatch (1991) highlight in their Conversation Analytic (CA) study of the sequential organisation of British news interview discourse is the maintenance of interviewer (IR) neutrality. This aspect of news interview talk is also the... -
Gendering politeness: Zulu-speaker identities at the University of Natal, Durban
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Busayo Ige Elizabeth de KadtThis paper investigates politeness, with special focus on the speech act of apologies, in the discourse of some male and female Zulu students at the University of Natal, Durban, in order to explore ways in which language and gender are... -
Language Practice — one profession, multiple applications
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: JacobusA Naudé -
The translation of biblical texts into South African Sign Language
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Susan Lombaard JacobusA NaudéThis article aims to prove that biblical texts in South African Sign Language (SASL) are more accessible than written or printed biblical texts for deaf-born South African people who use sign language as their first language. The study made use... -
Collocations in popular religious literature: an analysis in corpus-based translation studies
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Jacobus Marais JacobusA NaudéThe aim of the paper is to investigate a particular register of language. This register is, broadly speaking, language for special purposes (LSP) and, more particularly, popular religious literature as an instance of LSP. The analysis therefore aims to describe... -
Development of the EtsaTrans translation system prototype and its integration into the Parnassus meeting administration system
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Cobus Snyman Leandra Ehlers JacobusA NaudéThe issue of multilingualism at the University of the Free State (UFS) gained momentum with the development of the EtsaTrans translation system which is being developed according to the principles of example-based machine translation. In this article the development of... -
Evaluation of the Cummins theoretical framework for higher education in South Africa
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Susan Coetzee-Van Rooy --- Faculty of Humanities,In the context of the successful bilingual education of children, the value of the theoretical framework of Jim Cummins is acknowledged by educators and researchers worldwide. This framework is also used extensively in South Africa to provide a structure for... -
A phylogenetic and cognitive perspective on linguistic complexity
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Rusandré Hendrikse --- Department of Linguistics, South Africa Hildegard van Zweel --- Department of Linguistics, South AfricaIn recent years a growing interest in the nature of linguistic complexity has emerged in linguistic circles. A striking feature of this interest is that linguistic complexity is taken to be a phenomenon in its own right. In fact, an... -
Complex systems, multilingualism and academic success in South African higher education
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Susan Coetzee-Van Rooy --- Faculty of Humanities, South AfricaScholars of academic success in higher education in South Africa struggle to find an integrated framework that can explain the interplay between heterogeneous elements that combine in dynamic ways to influence the academic success of students. Language of teaching and... -
From submissiveness to agency: An overview of developments in translation studies and some implications for language practice in Africa
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: JacobusA Naudé --- Department of Classical and Near Eastern Studies, South AfricaSince the 1980s, discourses about translation have broadened steadily. Beginning with a discussion of the name and content of the discipline, an overview of some translation approaches focusing on the source text, the process of translation, the reception of the... -
Colonial and postcolonial encounters with the indigenous: The case of religious translation in Africa
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: JacobusA Naudé --- Department of Classical and Near Eastern Studies, South Africa CynthiaL Miller-Naudé --- Department of Classical and Near Eastern Studies, South AfricaTranslation in the African context is mainly associated with religious translation, especially the Bible but also the Qur’ān. In this paper, selected aspects of the translation of the Bible and the Qur’ān, each a vast field in itself, are used... -
Nation, language, and the ethics of translation. Edited by Sandra Bermann and Michael Wood
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: JacobusA Naudé --- Department of Classical and Near Eastern Studies, South Africa -
Information structure constraints on object marking in Manyika
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Anna Bax --- Department of Linguistics and Cognitive Science, USA Michael Diercks --- Department of Linguistics and Cognitive Science, USAObject markers in Bantu languages have commonly been analysed as either agreement morphemes or incorporated pronouns. This paper documents a number of empirical facts concerning object marking in Manyika (chiShona), showing that the distribution of object marking does not fit... -
The applicative construction and object symmetry as a parameter of variation in Kiswahili and Maragoli
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Paul Murrell --- , USAOver the last 20 years there has been much debate concerning double objects in applicative constructions in Bantu languages and the symmetry, or lack of it, in the behaviour of objects. It would appear that object symmetry depends to some... -
Locative object marking and the argument-adjunct distinction
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Kristina Riedel --- Department of Linguistics, USA Lutz Marten --- Departments of the Languages and Cultures of Africa and Linguistics, UKThis paper examines the status of locative phrases in Bantu and the argument-adjunct distinction. We look at verbal locative agreement and at other morphosyntactic patterns related to locative phrases in different Bantu languages including Kiswahili, Sambaa, Haya, and several Nguni... -
Preface
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Lutz Marten --- Departments of the Languages and Cultures of Africa and Linguistics, School of Oriental and African Studies, UK Kristina Riedel --- Department of Linguistics, USA Silvester Ron Simango --- Department of English Language and Linguistics, South Africa Jochen Zeller --- Linguistics Programme, School of Arts, South Africa -
The complexity of language change: The case of Ancient Hebrew
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: JacobusA Naudé --- Department of Classical and Near Eastern Studies, South AfricaThis article develops a theory of language change and diffusion in the light of new developments in contemporary linguistics on the themes of language evolution and the rise of linguistic complexity. The core assumptions of this article are, first, the... -
Applying Google Translate in a higher education environment: Translation products assessed
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Alta van Rensburg --- Language Centre, South Africa Cobus Snyman --- Language Centre, South Africa Susan Lotz --- Language Centre, South AfricaIn some South African higher education environments, a significant number of documents are translated in order to help facilitate successful learning. However, in an attempt to reduce the cost of translation, lecturers and students often explore avenues other than professional... -
Perceptions of the benefits and affordability of antiretrovirals among HIV-positive persons in a rural area of South-West Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: PaulS Ogunro AdeniyiK Adeneye TitusO Ogungbamigbe TaiwoA Adewole AdesolaZ Musa JoyI IsikweiTo assess the affordability of antiretroviral drugs (ARVs) and accessibility to treatment for opportunistic infections (OIs) among HIV-1 seropositive persons, we used semi-structured interviewer-administered questionnaires to interview 154 individuals seeking ARV treatment at the Daughter of Charity German Leprosy and... -
Epidemiological and demographic HIV/AIDS projections: South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: ThomasM. Rehle --- , USA Olive Shisana --- , South AfricaThe Epidemic Projection Package (EPP) recently developed by the UNAIDS Reference Group on Estimates, Models and Projections and the Spectrum model program developed by the Futures Group were used to model the South African HIV epidemic, project future trends in... -
Perceived social context of AIDS in a Black township in Cape Town
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: SethC Kalichman --- Department of Psychology, USA Leickness Simbayi --- , South AfricaAIDS is only one of several life threatening social problems facing people living in poverty. HIV/AIDS prevention messages and prevention programmes should be framed within the context of relevant social problems. The current study examined public perceptions of AIDS as... -
Positive care? HIV and residential care for children in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Susan Moses --- , South Africa Helen Meintjes --- , South AfricaResponses to the HIV epidemic leading to an increase in the number of residential care facilities for children across sub-Saharan Africa have prompted concerns that large numbers of orphaned children are being placed in institutional care. There is little empirical... -
Islamic perspectives on HIV/AIDS and antiretroviral treatment: the case of Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Amusa Saheed Balogun --- Department of History, NigeriaSome religious reactions to the HIV epidemic in Africa unwittingly contributed to the expansion of the epidemic in its early years. This was because many religious people regarded the emergence of HIV and AIDS as divine punishment for man's sins... -
Socioeconomic status and barriers to the use of free antiretroviral treatment for HIV/AIDS in Enugu State, south-eastern Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: ChijiokeI Okoli --- , Enugu, Nigeria SusanM Cleary --- , South AfricaWith about 3 million people living with HIV, Nigeria has approximately 8% of the global burden of HIV cases. In 2009, only about 34% of those in need of antiretroviral treatment (ART) were able to access care, which means that... -
Does accessibility to antiretroviral care improve after down-referral of patients from hospitals to health centres in rural South Africa?
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mosa Moshabela --- , Helen Schneider --- , South Africa SusanM Cleary --- Health Economics Unit, South Africa PaulM Pronyk --- , John Eyles --- School of Geography and Earth Sciences, CanadaWe conducted an evaluation of healthcare accessibility among patients taking antiretroviral treatment (ART) after they were ‘down-referred’ from hospital-based programmes to primary healthcare (PHC) centres in a rural South African setting. A cross-sectional design was used to study 109 PHC... -
The Madikwe Forum: a comprehensive partnership for supporting governance of Botswana's HIV and AIDS response
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gavin George --- Health Economics and HIV and AIDS Division (HEARD), South Africa Candice Reardon --- Health Economics and HIV and AIDS Division (HEARD), South Africa Jonathan Gunthorp --- Health Economics and HIV and AIDS Division (HEARD), South Africa Themba Moeti --- African Comprehensive HIV/AIDS Partnerships (ACHAP), Botswana Innocent Chingombe --- African Comprehensive HIV/AIDS Partnerships (ACHAP), Botswana Lesego Busang --- African Comprehensive HIV/AIDS Partnerships (ACHAP), Botswana Godfrey Musuka --- African Comprehensive HIV/AIDS Partnerships (ACHAP), BotswanaThere is a need for actors within the philanthropic sector to pursue collaborative partnerships with developing nations which could result in sustainable country-led responses to HIV and AIDS. There is also a need to evaluate the structures governing these partnerships... -
Transactional sex in the fishing communities along Lake Victoria, Kenya: a catalyst for the spread of HIV
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: ZacharyA Kwena --- Centre for Microbiology Research, Kenya Elizabeth Bukusi --- Centre for Microbiology Research, Kenya Enos Omondi --- Centre for Microbiology Research, Kenya Musa Ng'ayo --- Centre for Microbiology Research, Kenya KingK Holmes --- Department of Global Health, United StatesThe study describes the nature, context and implications of a unique form of transactional sexual relationships in the fishing communities along Lake Victoria in Kisumu County, Kenya. We conducted 12 focus group discussions and 17 key informant interviews among fishermen,... -
Predictors of sexual behaviour among church-going youths in Nairobi, Kenya: a cross-denominational study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ann Neville Miller --- Nicholson School of Communication, United States Kyalo wa Ngula --- Nicholson School of Communication, United States George Musambira --- Nicholson School of Communication, United StatesWe surveyed church-going youths in Nairobi, Kenya, to investigate denominational differences in their sexual behaviour and to identify factors related to those differences. In comparison with youths attending mainline churches, the youths surveyed at Pentecostal/evangelical churches were less likely to... -
‘If the doctors see that they don't know how to cure the disease, they say it's AIDS’: How older women in rural South Africa make sense of the HIV/AIDS epidemic
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Enid Schatz --- Department of Health Sciences/Department of Women's & Gender Studies, 535 Clark Hall, Leah Gilbert --- Department of Sociology, South Africa Courtney McDonald --- Department of Psychology and Sociology, USASouth Africa, like other sub-Saharan African countries, is in the midst of the AIDS epidemic. Older women, here defined as aged 60 years and older, while at lower risk of infection than those aged 20–50, are amongst those deeply ‘affected’... -
The impact of church contextual factors on church-going youth's HIV prevention behaviour in Nairobi, Kenya: A cross-denominational study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ann Neville Miller --- University of Central Florida, USA Kyalo Wa Ngula --- Africa Nazarene University, KenyaChurch doctrine about sexual behaviour has long been assumed to have an impact on aspects of the sub-Saharan AIDS epidemic, and evidence suggests that Pentecostal churches have a stronger influence THAN? on the sexual behaviour of their adherents. However, few... -
HIV testing is associated with increased knowledge and reductions in sexual risk behaviours among men in Cape Town, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lori AJ Scott-Sheldon --- Centers for Behavioral and Preventive Medicine, USA Michael P Carey --- Centers for Behavioral and Preventive Medicine, USA Kate B Carey --- Department of Behavioral and Social Sciences, School of Public Health, USA Demetria Cain --- Department of Psychology, USA Leickness C Simbayi --- Human Sciences Research Council, South Africa Vuyelwa Mehlomakhulu --- Human Sciences Research Council, South Africa Seth C Kalichman --- Department of Psychology, USAHIV testing benefits those who test positive, allowing them to receive treatment, but the benefits for those who test negative remain controversial. We evaluated the impact of testing on HIV knowledge and sexual risk among men in South Africa. Men... -
Patient and provider perspectives on improving the linkage of HIV-positive pregnant women to long-term HIV care and treatment in eastern Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Haneefa Saleem --- Department of International Health, USA Robert Kyeyagalire --- Nuffield Department of Population Health, United Kingdom Sarah Smith Lunsford --- EnCompass, LLC, USADespite strong evidence that antiretroviral therapy (ART) reduces the risk of mother-to-child transmission of HIV and improves the health of HIV-positive mothers, many HIV-positive pregnant women do not enrol into long-term HIV care and treatment. This study examined barriers and... -
Freshwater scaled chrysophytes, heliozoa and thaumatomonad flagellates from Edo State, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DE Wujek --- Department of Biology, USA MO Kadiri --- Department of Plant Biology and Biotechnology, Nigeria RM Dziedzic --- Department of Biology, USAA total of nine silica-scaled chrysophytes (Chrysophyceae: two species each in Spiniferomonas and Paraphysomonas; Synurophyceae: five Mallomonas species), 16 heliozoa, and two scaled flagellates were recorded from 19 samples collected from Edo State, Nigeria, over a period covering both dry... -
A vegetation-based hierarchical classification for seasonally pulsed floodplains in the Okavango Delta, Botswana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Murray-Hudson --- , Botswana F Combs --- , Botswana P Wolski --- , Botswana MT Brown --- , USAA classification scheme is presented for seasonal floodplains of the Boro-Xudum distributary of the Okavango Delta, Botswana. This distributary is subject to an annual flood-pulse, the inundated area varying from a mean low of 3 600 km2 to a mean... -
Ecophysiological responses of the salt marsh grass Spartina maritima to salinity
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: G Naidoo --- School of Biological and Conservation Sciences, South Africa Y Naidoo --- School of Biological and Conservation Sciences, South Africa P Achar --- Department of Biological and Physical Sciences, USAThe effects of salinity on growth and productivity of Spartina maritima (Curtis) Fernald were investigated in glasshouse and field experiments in 2008. In the glasshouse study, plants were subjected to 2%, 10%, 20%, 40% and 80% sea water, with tidal... -
The influence of pool size on species diversity and water chemistry in temporary rock pools on Domboshawa Mountain, northern Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Anusa --- Tropical Resources Ecology Programme (TREP), Department of Biological Sciences, Zimbabwe HGT Ndagurwa --- Tropical Resources Ecology Programme (TREP), Department of Biological Sciences, Zimbabwe CHD Magadza --- Tropical Resources Ecology Programme (TREP), Department of Biological Sciences, ZimbabweThe effect of pool size (area and depth) on species diversity and physicochemical characteristics of rock pool habitats on Domboshawa Mountain, northern Zimbabwe, was studied from December 2006 to May 2007. Pools were categorised based on maximum depth. Pool duration... -
The burrowing behaviour of Bulinus nyassanus, intermediate host of Schistosoma haematobium, in Lake Malaŵi
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: H Madsen --- DBL Centre for Health Research and Development, Faculty of Life Sciences, JR Stauffer --- School of Forest Resources, USAThere is evidence that transmission of Schistosoma haematobium has increased in some areas in the southern part of Lake Malaŵi, where transmission occurs both along open shorelines and at inland sites. Transmission along open shores in the lake is via... -
Characterisation of potential aquaculture pond effluents, and physico-chemical and microbial assessment of effluent-receiving waters in central Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: YB Ansah --- Department of Fish and Wildlife Conservation, USA EA Frimpong --- Department of Fish and Wildlife Conservation, USA S Amisah --- Department of Fisheries and Watershed Management, GhanaAn understanding of specific aquaculture systems and the impacts of their management practices leads to sound and cost-effective policies to protect the aquatic environment. Water samples were collected in 2009 from fish ponds, streams that receive effluents directly from ponds... -
Effects of water quality changes on phytoplankton and lesser flamingo Phoeniconaias minor populations at Kamfers Dam, a saline wetland near Kimberley, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LM Hill --- School of Agricultural, Forest and Environmental Sciences, USA WW Bowerman --- University of Maryland, USA JC Roos --- Water Quality Consultants, South Africa WC Bridges --- Department of Mathematical Sciences, USA MD Anderson --- BirdLife South Africa, South AfricaKamfers Dam, a wetland near Kimberley, South Africa, supports a population of Near Threatened lesser flamingos Phoeniconaias minor. The cyanobacterium Arthrospira fusiformis (Voronikhin) Komarek and Lund 1990, the flamingos’ food source, was in bloom in April 2009. The city's wastewater... -
NOTICE
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jeff Lincer --- , USA -
OBSERVATIONS ON THE DIETARY CHOICE OF FREE-RANGING JUVENILE OSTRICHES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: SusanM. Cooper --- , USA Todd Palmer --- , USACooper, S.M. & Palmer, T. 1994. Observations on the dietary choice of free-ranging juvenile Ostriches. Ostrich 65:251-255. -
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 -
BREEDING HABITS AND NESTING SUCCESS OF THE REDCHEEKED CORDON BLEU
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Dawi Musa Hamed --- , Sudan S.M. Evans --- Department of Zoology, U.K.Hamed, D. M. & Evans, S. M. 1983. Breeding habits and nesting success of the Redcheeked Cordon-bleu Ostrich 54:41-49. -
FORAGING BEHAVIOUR OF THE DUNE LARK
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: GeorgeW. Cox --- Department of Biology, USACox, George W. 1983. Foraging behaviour of the Dune Lark. Ostrich 54:113-120. -
LETTER
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: L.L. Short --- , USA J. F.M. Horne --- , USA -
BREEDING BIOLOGY AND INTER-TERRITORY MOVEMENTS IN A FISCAL SHRIKE POPULATION IN KENYA
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Steve Zack --- Department of Biology, USAZack, S. 1986. Breeding biology and inter-territory movements in a Fiscal Shrike population in Kenya. Ostrich 57: 65–74. -
EGG VARIABILITY AND CONSPECIFIC NEST PARASITISM IN THE PLOCEUS WEAVERBIRDS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Scott Freeman --- Department of Zoology, NJ-15, USAFreeman, S. 1988. Egg variability and conspecific nest parasitism in the Ploceus weaverbirds. Ostrich 59: 49–53. -
A COMPARISON OF STRUCTURES RELATED TO FORAGING IN TWO CLOSELY RELATED GULLS: LARUS LEUCOPHTHALMUS AND L. HEMPRICHII
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: RobekiW. Storer --- , USA StevenM. Goodman --- Department of Biology, USAStorer, R. W. & Goodman, S. M. 1988. A comparison of structures related to foraging in two closely related gulls: Larus leucophthalmus and L. hemprichii. Ostrich 59: 145–149. -
EFFECTS OF GROUP SIZE AND SEX ON VIGILANCE IN OSTRICHES (STRUTHIO CAMELUS): ANTIPREDATOR STRATEGY OR MATE COMPETITION?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Joanna Burger --- Department of Biological Sciences, USA Michael Gochfeld --- Department of Environmental & Community Medicine, USABurger, J. & Gochfeld, M. 1988. Effects of group size and sex on vigilance in Ostriches (Struthio camelus): Antipredator Strategy or Mate Competition? Ostrich 59:14-20. -
SHORT NOTES
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: C.J. Vernon --- , South Africa W. R. J. Dean --- , South Africa W. R.J. Dean --- , C.J. Vernon --- , A.F. Boshoff --- Cape Department of Nature and Environmental Conservation, A.C. De Kock --- , H.D. Oschadleus --- , StevenM. Goodman --- Museum of Zoology and Department of Biology, USA RobertW. Storer --- Museum of Zoology and Department of Biology, USA William Clark --- , USA Yossi Leshem --- , Israel G.V. Haagner --- Manyeleti Game Reserve, D.S. Reynolds --- Manyeleti Game Reserve, G.L. Maclean --- Department of Zoology, South Africa R.P. Prys-Jones --- Percy FitzPatrick Institute of African Ornithology, South Africa J.J. Herholdt --- , South Africa N.J. Grobler --- , South Africa -
THE EFFECTS OF FOREST FRAGMENTATION ON UNDERSTORY BIRDS IN CENTRAL AMAZONIAN RAINFORESTS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: RichardO. Bierregaard --- , USADuring the past 8 years a multidisciplinary study of the effect of habitat fragmentation on Amazonian forest ecosystems has been carried out under the auspices of the World Wildlife Fund and Brazil's National Institute for Amazonian Research (INPA). A wide... -
SPATIAL AND TEMPORAL PATTERNS AND PROCESSES IN COMMUNITIES OF FOREST BIRDS
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: RobertE. Ricklefs --- Department of Biology, USARiclefs, R.E. 1989. Spatial and temporal patterns and processes in communities of forest birds. Ostrich Suppl. 14: 85–95. -
THE TIMING OF BREEDING AND MOULT OF THE YELLOWMANTLED WIDOWBIRD EUPLECTES MACROURUS IN WESTERN KENYA
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: UdoM. Savalli --- Department of Integrative Biology, USASavalli, U.M. 1993. The timing of breeding and moult of the Yellowmantled Widowbird Euplectes mac-rourus in western Kenya. Ostrich 64:49-56. -
THE BEHAVIOUR OF MALE YELLOWMANTLED WIDOWBIRDS EUPLECTES MACROURUS IN WESTERN KENYA
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: UdoM. Savalli --- Department of Integrative Biology, USASavalli, U. M. 1993. The behaviour of male Yellowmantled Widowbirds Euplectes macrourus in western Kenya. Ostrich 64: 57–62. -
FOOD HABITS OF THE MADAGASCAR LONG-EARED OWL ASIO MADAGASCARIENSIS IN TWO HABITATS IN SOUTHERN MADAGASCAR
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: StevenM. Goodman --- , USA Olivier Langrand --- , Madagascar ChristopherJ. Raxworthy --- Division of Herpetology, USAGoodman, S. M., Langrand, O. & Raxworthy, C. J. 1993. Food habits of the Madagascar Long-eared Owl Asio madagascariensis in two habitats in southern Madagascar. Ostrich 64:79-85. -
ORGANOCHLORINE RESIDUES AND EGGSHELL THINNING IN THE PEREGRINE FALCON FALCO PEREGRINUS MINOR IN ZIMBABWE
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: R.R. Hartley --- , Zimbabwe I. Newton --- Institute of Terrestrial Ecology, UK M. Robertson --- , USAHartley, R.R., Newton, I., & Robertson, M. 1995. Organochlorine residues and eggshell thinning in the Peregrine Falcon Falco peregrinus minor in Zimbabwe. Ostrich 66: 69–73. -
CURRENT DISTRIBUTION AND STATUS OF BENSON'S ROCKTHRUSH PSEUDOCOSSYPHUS BENSONI, A MADAGASCAR ENDEMIC
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Olivier Langrand --- , Madagascar StevenM. Goodman --- , USALangrand, O. & Goodman, S.M. 1996. Current distribution and status of Benson's Rockthrush Pseudocossyphus bensoni. a Madagascar endemic. Ostrich 67:49-54. -
Short Notes
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Marc Herremans --- Department of Wildlife and National Parks—Research Division, Mark Joos-Vandewalle --- , Botswana WendyD. Borello --- , Botswana Marc Herremans --- Department of Wildlife and National Parks, Botswana Diane Herremans-Tonnoeyr --- Department of Wildlife and National Parks, Botswana P.J. Mundy --- Dept. National Parks, Zimbabwe G. Haynes --- Dept. Anthropology, U.S.A. F. Dowsett-Lemaire --- , Belgium ThomasM. Butynski --- , C. Dietrich Schaaf --- , USA GailW Hearn --- Department of Biology, USA Jef Dupain --- University, Dept. of Biology, Belgium Ellen Van Krunkelsven Antwerp --- University, Dept. of Biology, Belgium Linda Van Elsacker --- , Belgium -
MORPHOLOGICAL DISPERSION OF THE INTRODUCED LAND-BIRDS OF SAINT HELENA
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JulieL. Lockwood --- Department of Ecology and Evolutionary Biology, USA MichaelP. Moulton --- Department of Wildlife Ecology and Conservation, USA RichardK. Brooke --- , South AfricaLockwood, J.L., Moulton, M.P. & Brooke, R.K. 1996. Morphological dispersion of the introduced land-birds of Saint Helena. Ostrich 67: 111–117. -
Short Notes
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: O.B. Kok --- Departments of Zoology-Entomology and Mathematical Statistics respectively, South Africa J.M. van Zyl --- Departments of Zoology-Entomology and Mathematical Statistics respectively, South Africa Philip A.R. Hockey --- , South Africa G.R. Cunningham-van Someren --- , Kenya Peter Köhler --- , Germany Ursula Köhler --- , Germany Lily-Arison René de Roland --- , Madagascar Russell Thorstrom --- , USA RichardT. Watson --- , USA Peter Njoroge --- Dept. of Ornithology, Kenya David Mutinda --- , Kenya -
Status of the Madagascar Fish Eagle Haliaeetus vociferoides in 1995
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Rivo Rabarisoa --- , Madagascar RichardT. Watson --- , USA Russell Thorstrom --- , USA James Berkelman --- Department of Fisheries and Wildlife Sciences, USARabarisoa, R., Watson, R.T., Thorstrom, R., & Berkelman, J. 1997. Status of the Madagascar Fish Eagle Haliaeetus vociferoides in 1995. Ostrich 68 (1): 8–12. -
Observations at a nest of the Madagascar Wagtail Motacilla flaviventris
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: DonnaL. O'Daniel --- , USAO'Daniel, D.L. 1997. Observations at a nest of the Madagascar Wagtail. Ostrich 68 (2): 19–22. -
Fossil Storks (Ciconiidae) from the Late Eocene and Early Miocene of Egypt
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: EllenR. Miller --- , USA D. Tab Rasmussen --- Department of Anthropology CB 1114, USA ElwynL. Simons --- , USAMiller, E.R., Tab Rasmussen, D. & Simons, E.L. 1997. Fossil Storks (Ciconiidae) from the Late Eocene and Early Miocene of Egypt. Ostrich 68 (1): 23–26. -
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 -
Short Notes
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: StevenM. Goodman --- , USA Phillip Parrillo --- , USA A. J.F.K. Craig --- Department of Zoology and Entomology, South Africa StephanieJ. Tyler --- Department of Animal Health, Botswana Lindsay Tyler --- Department of Animal Health, Botswana A.I. Akinpelu --- Department of Zoology, Nigeria Marc Herremans --- , South Africa Robert Kyle --- KwaZulu Department of Nature Conservation, PeterG. Ryan --- , South Africa -
Functional and evolutionary morphology of woodpeckers
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: WalterJ. Bock --- Department of Biological Sciences, USABock, W.J. 1999. Functional and evolutionary morphology of woodpeckers. In: Adams, N.J. & Slotow, R.H. (eds) Proc. 22 Int. Ornithol. Congr., Durban. Ostrich 70 (1): 23–31. -
Experiments on competition between Great and Blue Tit: Effects on Blue Tit reproductive success and population processes
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: AndréA. Dhondt --- Laboratory of Ornithology, USA Frank Adriaensen --- Department of Biology, UIA, BelgiumDhondt, A.A. & Adriaensen, F. 1999. Experiments on competition between Great and Blue Tit: Effects on Blue Tit reproductive success and population processes. In: Adams, N.J. & Slotow, R.H. (eds) Proc. 22 Int. Ornithol. Congr., Durban. Ostrich 70 (1): 39–48. -
Taxon cycles in the Lesser Antillean avifauna
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: R.E. Ricklefs --- Department of Biology, USA E. Bermingham --- , USARicklefs, R.E. & Bermingham, E. 1999. Taxon cycles in the Lesser Antillean avifauna. In: Adams, N.J. & Slotow, R.H. (eds) Roc. 22 Int. Ornithol. Congr., Durban. Ostrich 70 (1): 49–59. -
Biogeography on the eve of the twenty-first century: Towards an epistemology of biogeography
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: François Vuilleumier --- Department of Ornithology, USAVuilleumier, F. 1999. Biogeography on the eve of the twenty-first century: Towards an epistemology of biogeography. In: Adams, N.J. & Slotow, R.H. (eds) Proc. 22 Int. Ornithol. Congr., Durban. Ostrich 70 (1): 89–103. -
Heuristics in systematics
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: WalterJ. Bock --- Department of Biological Sciences, USABock, W. 2000. Heuristics in systematics. Ostrich 71 (1 & 2): 41–44. -
Time budgets for captive Wattled Cranes Bugeranus carunculatus
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: L.B. Davenport --- Department of Biology, USA EmilK. Urban --- Department of Biology, USADavenport, L.B.Jr. & Urban, E.K. 2000. Time budgets for Captive Wattled Cranes Bugeranus carunculatus. Ostrich 71 (1 & 2):136-138. -
Water repellency and feather structure of the Blue Swallow Hirundo atrocaerulea
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: A.M. Rijke --- Department of Materials Science-SEAS, USA W.A. Jesser --- Department of Materials Science-SEAS, USA S.W. Evans --- BirdLife South Africa, South Africa H. Bouwman --- School for Environmental Sciences and Development (Zoology), South AfricaRijke, A.M., Jesser, W.A., Evans, S.W & Bouwman, H. 2000. Water repellency and feather structure of the Blue Swallow Hirundo atrocaerulea. Ostrich 71 (1 & 2): 143–145. -
Conservation in the community: the Kilum-Ijim Forest Project, Cameroon
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: David H.L. Thomas --- , UK Susan Anders --- , Cameroon Nkengla Jeremiah Penn --- , CameroonThomas, D.H.L., Anders, S. & Penn, N.J. 2000. Conservation in the community: the Kilum-Ijim Forest Project, Cameroon. Ostrich 71 (1 & 2): 157–161. -
Comparative avian biodiversity of five mountains in northern Cameroon and Bioko
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Brenda Larison --- Centre for Tropical Research and Department of Biology, USA ThomasB. Smith --- Centre for Tropical Research and Department of Biology, USA Roger Fotso --- , Yaounde Duncan McNiven --- , UKLarison, B., Smith, T.B., Fotso, R. & McNiven, D. 2000. Comparative avian biodiversity of five mountains in northem Cameroon and Bioko. Ostrich 71 (1 & 2): 269–276. -
A description of a new species of Brachypteracias (Family Brachypteraciidae) from the Holocene of Madagascar
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: StevenM. Goodman --- , USAGoodman, S.M. 2000. A description of a new species of Brachypteracias (Family Brachypteraciidae) from the Holocene of Madagascar. Ostrich 71 (1 & 2): 318–322. -
Description of nesting and foraging habitat of the Madagascar Fish-eagle Haliaeetus vociferoides: a conservation initiative
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: RichardT. Watson --- , USA James Berkelman --- Department of Fisheries and Wldlife Sciences, USA Rivo Rabarisoa --- , Madagascar Russell Thorstrom --- , USA Christine R.B. Watson --- , USAWatson R.T., Berkelman J., Rabarisoa R., Thorstrom R., & Watson C.R.B. 2000. Description of nesting and foraging habitat of the Madagascar Fish-Eagle Haliaeetus vociferoides: a conservation initiative. Ostrich 71 (1 & 2): 336–340. -
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... -
Repeated observations of a Cape Gannet Morus capensis on the coast of Patagonia, Argentina
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: GingerA Rebstock --- Department of Biology, USA María Laura Agüero --- Biología y Manejo de Recursos Acuáticos, Argentina P Dee Boersma --- Department of Biology, USA Luis Augusto Ebert --- , Brazil Agustina Gómez Laich --- Biología y Manejo de Recursos Acuáticos, Argentina Nora Lisnizer --- Biología y Manejo de Recursos Acuáticos, Argentina WalterS Svagelj --- Biología y Manejo de Recursos Acuáticos, Argentina M Magdalena Trivellini --- , Argentina -
Disconcerting trends in populations of the endangered Sokoke Scops OwlOtus ireneae in the Arabuko-Sokoke Forest, Kenya
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: MunirZ Virani --- , USA Peter Njoroge --- Ornithology Section, Department of Zoology, Kenya Ian Gordon --- , Kenya -
Using stable isotopes to trace resource acquisition and trophic position in four Afrotropical birds with different diets
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Petr Procházka --- , Czech Republic Jiří Reif --- Department of Zoology and Laboratory of Ornithology, Faculty of Science, Czech Republic David Hořák --- Department of Ecology, Faculty of Science, Czech Republic Petr Klvaňa --- , Czech Republic RaymondW Lee --- School of Biological Sciences, USA Elizabeth Yohannes --- , Germany -
Nesting status of African White-backed Vultures Gyps africanus in the Masai Mara National Reserve, Kenya
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Munir Virani --- , USA Paul Kirui --- , Kenya Ara Monadjem --- All Out Africa Research Unit, Department of Biological Sciences, Swaziland Simon Thomsett --- Ornithology Section, Department of Zoology, Kenya Mwangi Githiru --- Ornithology Section, Department of Zoology, KenyaVulture populations have declined globally as well as regionally within Africa. Little is known about the status of the African White-backed Vulture Gyps africanus in Kenya, but ongoing studies indicate that its population has declined over the last two decades... -
Large declines of the Hooded Vulture Necrosyrtes monachus across its African range
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: DL Ogada --- , USA R Buij --- , The NetherlandsThe Hooded Vulture Necrosyrtes monachus is not currently listed on the IUCN Red List of threatened species, yet recent email discussions amongst a group of African raptor experts suggests this species may be in rapid decline. Information was solicited from... -
Seasonal fluctuations in population size and habitat segregation of Kittlitz's Plover Charadrius pecuarius at Barberspan Bird Sanctuary, North West province, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sara Lipshutz --- Biology Department, USA Magdalena Remisiewicz --- Avian Ecophysiology Unit, Department of Vertebrate Ecology and Zoology, Poland LesG Underhill --- Animal Demography Unit, Department of Zoology, South Africa Joel Avni --- , South AfricaSeasonal fluctuations in population size reflect breeding patterns and movements of birds, but distinguishing residents from itinerant birds is difficult with partially migratory species such as Kittlitz's Plover. We determined changes in the size of Kittlitz's Plover populations in two... -
Are Southern Black Flycatchers Melaenornis pammelaina associated with Fork-tailed Drongos Dicrurus adsimilis?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: TC Morgan --- Department of Wildlife Ecology and Conservation, USA RA McCleery --- Department of Wildlife Ecology and Conservation, USA MP Moulton --- Department of Wildlife Ecology and Conservation, USA A Monadjem --- All Out Africa Research Unit, Department of Biological Sciences, Swaziland -
Forest-type preference of an Afrotropical thrush (East Coast Akalat Sheppardia gunningi sokokensis) in Arabuko-Sokoke Forest, Kenya
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JE Banks --- Environmental Science, Interdisciplinary Arts and Sciences, USA C Jackson --- , Kenya A Baya --- , Kenya H Minnella --- Environmental Science, Interdisciplinary Arts and Sciences, USA M Nitz --- Environmental Science, Interdisciplinary Arts and Sciences, USA J Hitchcock --- Environmental Science, Interdisciplinary Arts and Sciences, USA D Bruinsma --- , Kenya -
Nest characteristics of Yellow-billed Kites Milvus aegyptius in the Manambolomaty Lakes Complex, western Madagascar
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tolojanahary Andriamalala --- , Madagascar Lily-Arison Rene de Roland --- , Madagascar Marius Rakotondratsima --- , Madagascar Gilbert Razafimanjato --- , Madagascar Russell Thorstrom --- , USAWe studied the nesting biology of Yellow-billed Kites Milvus aegyptius in the Manambolomaty Lakes Complex of western Madagascar during 2002 and 2003. We recorded 64 nesting attempts. In 2003, 33% (n = 39 nests) of the occupied nests were from... -
Avian fossils from the Early Miocene Moghra Formation of Egypt
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: N Adam Smith --- National Evolutionary Synthesis Center, USAAvian remains from the Early Miocene (∼17 Ma) Moghra Formation of Egypt include new records of ‘waterbirds’ (storks, herons, pelicans and allies) and a ratite. Only a single avian fossil has been previously reported from Wadi Moghra and, thus, additional... -
The sociality of nesting in Rüppell's Weaver Ploceus galbula and the Lesser Masked Weaver Ploceus intermedius in an Ethiopian acacia woodland
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: David C Lahti --- Department of Biology, Queens College, USARüppell's Weaver Ploceus galbula and the Lesser Masked Weaver Ploceus intermedius nest prominently in the Awash National Park, Ethiopia. In both species the sociality or degree of aggregation of their nesting is varied. Rüppell's Weaver can nest singly or in... -
Adaptation of the United States Fire Danger Rating System to Fynbos Conditions.
Item type: Journal Article • Journal: South African Forestry Journal • Authors: B.W. van Wilgen --- Jonkershoek Forestry Research Centre, South Africa R.E. Burgan --- , USAFire danger indices from nine weather stations in the Fynbos Biome were obtained using historic weather data and a fynbos fuel model as inputs for the United States National Fire Danger Rating System. The indices produced were compared with the... -
Variation in Seedbed Moisture Correlated with Growth of Pinus taeda Seedlings
Item type: Journal Article • Journal: South African Forestry Journal • Authors: WilliamA. Retzlaff --- , USA DavidB. South --- , USASeedlings of P. taeda were grown in a seedbed under the open-rooted system to obtain growth data to regress against variations in soil moisture tension. From July through October, frequent rains kept soil moisture levels high and made irrigation unnecesary... -
Carrying Capacity and Thinning Response of Pinus taeda in the CCT Experiments
Item type: Journal Article • Journal: South African Forestry Journal • Authors: MikeR. Strub --- , USA BrianV. Bredenkamp --- , RSALong-term thinning studies replicated on low, medium and high quality sites in South Africa indicate that high quality sites have a higher basal area carrying capacity that low quality sites. High quality sites also produce a higher maximum stand density... -
Effects of Fall Irrigation on Morphology and Root Growth Potential of Loblolly Pine Seedlings Growing in Sand
Item type: Journal Article • Journal: South African Forestry Journal • Authors: HansM. Williams --- , USA DavidB. South --- , USA Alan Webb --- , USATwo studies (conducted in 1984 and 1985) tested the effects of irrigation during mid-September to mid-November on the morphology and root growth potential (RGP) of 1-0 bare-root loblolly pine (Pinus taeda L.) seedlings. For both studies, fall irrigation (131 to... -
Hybridisation between native Oreochromis species and introduced Nile tilapia O. niloticus in the Kafue River, Zambia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AM Deines --- Notre Dame Environmental Change Initiative, and Department of Biological Sciences, USA I Bbole --- The Copperbelt University, Zambia C Katongo --- The Copperbelt University, Zambia JL Feder --- Notre Dame Environmental Change Initiative, and Department of Biological Sciences, USA DM Lodge --- Notre Dame Environmental Change Initiative, and Department of Biological Sciences, USAThe Nile tilapia Oreochromis niloticus has been introduced throughout Africa outside its native range for aquaculture purposes. Hybridisation between escaped O. niloticus and native Oreochromis species is of concern due to potential negative effects on wild genetic resources for conservation,... -
Predictors Of Developmental Outcomes For Infants Who Are Medically Fragile
Item type: Journal Article • Journal: Southern African Journal of Child and Adolescent Mental Health • Authors: T.B. Smith --- Psychology Department, G.C. Boyce --- , USA -
Smoking Habits Among Secondary School Students In Selected Districts In Zimbabwe. Gender, Urban/Rural And Social Class Differences
Item type: Journal Article • Journal: Southern African Journal of Child and Adolescent Mental Health • Authors: LelfE. Aarø --- Department of Psychosocial Science, ArneH. Eide --- Research Center for Health Promotion and SINTEF Unlmed (Oslo) Department for Health, Technology and Usability, StanleyW. Acuda --- Department of Psychiatry, Zimbabwe Tecla Butau --- Department of Psychiatry, ZimbabweObjective To examine the relationship between smoking habits and indicators of socioeconomic status, the urban/rural dimension and gender among secondary school students from selected districts in Zimbabwe. -
Challenges in international collaboration in child and adolescent psychiatry
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: HeshamM Hamoda --- , USA MyronL Belfer --- , USAInternational collaboration in child and adolescent psychiatry has historically been weak and fragmented. The field has also lagged in developing remedies for improving collaboration. This article identifies barriers to successful collaboration and examines problems in the areas of finance, professional... -
Bullying boys: the traumatic effects of bullying in male adolescent learners
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Susan Louise Penning --- Department of Psychology, South Africa Anil Bhagwanjee --- Department of Psychology, South Africa Kaymarlin Govender --- Department of Psychology, South AfricaObjective: This study investigated the nature and extent of the relationship between bullying and trauma among male adolescent learners. Trauma was operationalised through the multiple constructs of post-traumatic stress, anxiety, depression, dissociation and anger. Method: In this quantitative study, two... -
Validation of the Pediatric Symptom Checklist in HIV-infected Batswana
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Elizabeth Lowenthal --- , USA Kathy Lawler --- , USA Nurit Harari --- , USA Lesedi Moamogwe --- , Botswana Japhter Masunge --- , Botswana Motshodi Masedi --- , Botswana Bolefela Matome --- , Botswana Esther Seloilwe --- , Botswana Michael Jellinek --- , USA Michael Murphy --- , USA Robert Gross --- , USAObjective: To determine the validity of the Pediatric Symptom Checklist (PSC), a brief measure of psychosocial health, for screening HIV+ Batswana children. -
Development and preliminary validation of a screen for interpersonal childhood trauma experiences among school-going youth in Durban, South Africa
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: StevenJ Collings --- School of Applied Human Sciences, Howard College Campus, South Africa SachetR Valjee --- School of Applied Human Sciences, Howard College Campus, South Africa SusanL Penning --- School of Applied Human Sciences, Howard College Campus, South AfricaThis paper describes the development and preliminary validation of the Developmental Trauma Inventory (DTI), which is a 36-item, retrospective, self-administered screen for interpersonal childhood trauma experiences developed specifically for the South African context. Preliminary validation of the inventory was conducted... -
Prevalence and factors associated with depressive symptoms among young women and men in the Eastern Cape Province, South Africa
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Mzikazi Nduna --- Department of Psychology, South Africa RachelK Jewkes --- Gender and Health Research Unit, South Africa KristinL Dunkle --- Department of Behavioral Sciences and Health Education & Center for AIDS Research, Rollins School of Public Health, USA NwabisaP Jama Shai --- Gender and Health Research Unit, South Africa Ian Colman --- Department of Epidemiology and Community Medicine, School of Public Health, CanadaPurpose: There is little research on prevalence of depressive symptoms and associated factors among youth in sub-Saharan Africa. This paper explores factors associated with depressive symptomatology in South Africa. -
Cradling bias is absent in children with autism spectrum disorders
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Lea-Ann Pileggi --- Applied Cognitive Science and Experimental Neuropsychology Team Laboratory (ACSENT Laboratory), Department of Psychology, South Africa Susan Malcolm-Smith --- Applied Cognitive Science and Experimental Neuropsychology Team Laboratory (ACSENT Laboratory), Department of Psychology, South Africa Michelle Hoogenhout --- Applied Cognitive Science and Experimental Neuropsychology Team Laboratory (ACSENT Laboratory), Department of Psychology, South Africa KevinGF Thomas --- Applied Cognitive Science and Experimental Neuropsychology Team Laboratory (ACSENT Laboratory), Department of Psychology, South Africa Mark Solms --- Applied Cognitive Science and Experimental Neuropsychology Team Laboratory (ACSENT Laboratory), Department of Psychology, South AfricaObjective: This study investigated relations among empathy and cradling bias in children diagnosed with autism spectrum disorders (ASDs). -
Cannabis use and family history in adolescent first episode psychosis in Durban, South Africa
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Saeeda Paruk --- Nelson R Mandela School of Medicine, South Africa JonathanK Burns --- Nelson R Mandela School of Medicine, South Africa Rochelle Caplan --- Semel Institute of Neuroscience and Human Behavior, David Geffen School of Medicine, USAObjectives: To investigate the clinical correlates of cannabis use in adolescents with first episode psychosis (FEP). -
Autism spectrum disorders—Global challenges and local opportunities
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Susan Malcolm-Smith --- ACSENT Laboratory Department of Psychology, South Africa Michelle Hoogenhout --- ACSENT Laboratory Department of Psychology, South Africa Natalia Ing --- ACSENT Laboratory Department of Psychology, South Africa KevinGF Thomas --- ACSENT Laboratory Department of Psychology, South Africa Petrus de Vries --- Division Child and Adolescent Psychiatry, South Africa -
Will you leave me too?: The impact of father absence on the treatment of a 10-year-old girl
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: David Strauss --- LCSW, USAThis paper addresses the impact father absence has on child development and the nature of the transference between father absent, child and therapist. A review of psychoanalytic concepts and theories that relate to this topic are applied to a case... -
Non-medical prescription opioid use and violent behaviour among adolescents
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Sean M Murphy --- Department of Health Policy and Administration, USA Sterling McPherson --- College of Nursing, USA Kent Robinson --- Department of Health Policy and Administration, USA -
The orchestration of life, Part 1: the music of the genes
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: SusanH KidsonA new synthesis between genetics, embryology and music is explored in this article. Words, lyrics, molecular biology, embryology, art and composition have been intermingled with the intention of creating atmosphere, while at the same time being informative and maintaining the... -
Protest Music in France: Production, Identity and Audiences
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Eric Martin Usner --- Lancaster, USA -
Migration redefined? Seasonality, movements and group composition of humpback whales Megaptera novaeangliae off the west coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Barendse --- , South Africa PB Best --- , South Africa M Thornton --- , South Africa C Pomilla --- , USA I Carvalho --- , USA HC Rosenbaum --- , USAThe migration of Southern Hemisphere humpback whales Megaptera novaeangliae between their feeding and breeding areas has thus far been considered a highly predictable and seasonal event. However, previous observations on the humpbacks that pass through the nearshore waters of the... -
First report of Phoronis ovalis from Africa and its effect on mussel hosts
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JL Ruesink --- Department of Biology, USA AC Trimble --- Department of Biology, USAPhoronis ovalis is a cosmopolitan, shell-boring phoronid worm reported from 24 locations worldwide in temperate latitudes, but not previously from Africa. We identified a shell-boring phoronid in Namibia that is morphologically similar to P. ovalis and subsequently surveyed its latitudinal... -
Few data but many fish: marine small-scale fisheries catches for Mozambique and Tanzania
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Jacquet --- Sea Around Us Project, Fisheries Centre, Canada H Fox --- Conservation Science Program, USA H Motta --- WWF Mozambique Coordination Office, Mozambique A Ngusaru --- EAME Programme, WWF-Tanzania Programme Office, Tanzania D Zeller --- Sea Around Us Project, Fisheries Centre, CanadaThe fisheries data supplied to the Food and Agriculture Organization of the United Nations (FAO) by national agencies have served as the primary tool for many global and regional studies. However, it is recognised that these data are incomplete and... -
Structure of a toothed cetacean community around a tropical island (Mayotte, Mozambique Channel)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Kiszka --- Observatoire des Mammifères Marins, Mayotte PJ Ersts --- , USA V Ridoux --- Observatoire des Mammifères Marins, MayotteWe describe the structure of a toothed cetacean community around the island of Mayotte (South-West Indian Ocean, 45°10′ E, 12°50′ S), using data collected from small boat-based surveys conducted between July 2004 and June 2006. In all, 16 odontocete species... -
The waters of São Tomé: a calving ground for West African humpback whales?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: I Carvalho --- Faculdade de Ciências do Mar e Ambiente, Portugal C Brito --- Centro de História de Além-Mar, Faculdade de Ciências Sociais e Humanas, Portugal ME dos Santos --- Eco-Ethology Research Unit, ISPA, Portugal HC Rosenbaum --- Sackler Institute for Comparative Genomics, USAIn the Southern Hemisphere, humpback whales Megaptera novaeangliae feed in Antarctic waters during the austral summer and migrate to their breeding grounds in subtropical and tropical waters during the winter. Historical whaling records suggest that the Archipelago of São Tomé... -
Tube-forming polychaetes enhance invertebrate diversity and abundance in sandy sediments of Mozambique, Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MS Thomsen --- Marine Department, National Environmental Research Institute, Denmark MF Muth --- Department of Environmental Sciences, USA KJ McGlathery --- Department of Environmental Sciences, USAIn marine soft-bottom systems, polychaetes can increase habitat complexity by constructing rigid tubes (e.g. several onuphid species) that contrast with surrounding topographically flat sediments. These structures can provide predation refuges and increase larval settlement and thereby increase the richness and... -
Observations of individual humpback whales utilising multiple migratory destinations in the south-western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PJ Ersts --- Center for Biodiversity and Conservation, USA C Pomilla --- Sackler Institute for Comparative Genomics, USA J Kiszka --- Observatoire des Mammifères Marins, France S Cerchio --- Sackler Institute for Comparative Genomics, USA HC Rosenbaum --- Center for Biodiversity and Conservation, USA M Vély --- , France Y Razafindrakoto --- Madagascar Country Program, Madagascar JA Loo --- Sackler Institute for Comparative Genomics, USA MS Leslie --- Sackler Institute for Comparative Genomics, USA M Avolio --- Barnard College, USAMovements of humpback whales Megaptera novaeangliae among breeding regions within the southwestern Indian Ocean are poorly understood. Understanding the relationships among breeding regions is critical for effective conservation and management strategies. Through systematic comparisons of molecular genotypes and both systematic... -
Transit station or destination? Attendance patterns, movements and abundance estimate of humpback whales off west South Africa from photographic and genotypic matching
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Barendse --- , South Africa PB Best --- , South Africa M Thornton --- , South Africa SH Elwen --- , South Africa HC Rosenbaum --- , USA I Carvalho --- , USA C Pomilla --- , USA TJQ Collins --- , USA MA Meÿer --- , South Africa RH Leeney --- , UKHumpback whales Megaptera novaeangliae found off west South Africa (WSA) are known to display an atypical migration that may include temporary residency and feeding during spring and summer. At a regional scale there is uncertainty about how these whales relate... -
Plant traits and spread of the invasive salt marsh grass, Spartina alterniflora Loisel., in the Great Brak Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JB Adams --- Department of Botany, South Africa A Grobler --- Department of Botany, South Africa C Rowe --- Department of Botany, South Africa T Riddin --- Department of Botany, South Africa TG Bornman --- , South Africa DR Ayres --- Evolution and Ecology, USASpartina alterniflora Loisel., widely recognised as an aggressive invader of estuaries and salt marshes around the world, was discovered growing in the temporarily open/closed Great Brak Estuary on the southern Cape coast of South Africa in 2004. This is the... -
Composition of macrobenthos in the Wouri River estuary mangrove, Douala, Cameroon
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: VM Ngo-Massou --- Department of Botany, Faculty of Science, Cameroon GL Essome-Koum --- Department of Botany, Faculty of Science, Cameroon E Ngollo-Dina --- , USA N Din --- Department of Botany, Faculty of Science, CameroonThe macrobenthos of mangroves is dominated by crabs and molluscs, which have a significant ecological role in terms of the structure and function of mangroves. The aim of this study was to determine the abundance and biological diversity of these... -
Identifying management preferences, institutional organisational rules, and their capacity to improve fisheries management in Pemba, Mozambique
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TR McClanahan --- , USA JE Cinner --- ARC Centre of Excellence for Coral Reef Studies, Australia C Abunge --- , USAThe potential to improve the management of fisheries in Pemba, Mozambique, were explored by evaluating stakeholder's preferences for management and the key institutional design elements of the fisheries organisations or community councils of fisheries (CCPs). We interviewed fishers, community leaders... -
Validation of aerosol products derived from ocean colour in East African coastal waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: F Mélin --- European Commission – Joint Research Centre, Italy B N Holben --- Goddard Space Flight Center, Biospheric Sciences Branch, USA Y Courcoux --- Observatoire de Physique de l'Atmosphère de la Réunion, FranceThe aerosol products derived from the ocean colour missions SeaWiFS and MODIS (Aqua and Terra) were assessed with AERONET field measurements collected at sites in Mozambique (Inhaca) and Kenya (Malindi). The median of absolute relative differences between satellite and AERONET... -
A novel categorisation system to organise a large photo identification database for white sharks Carcharodon carcharias
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Andreotti --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa M Rutzen --- Shark Diving Unlimited, Klein Bay, South Africa PL Wesche --- Department of Zoology, South Africa CP O'Connell --- School of Marine Science and Technology, USA M Meÿer --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa H Oosthuizen --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa CA Matthee --- Evolutionary Genomics Group, Department of Botany and Zoology, South AfricaThe white shark Carcharodon carcharias was one of the first elasmobranch species where photo identification was used to identify unique individuals. In this study, we propose guidelines that improve the current photo identification technique for white sharks by presenting a... -
Intellectual Property Rights: A Focus on Medicinal Plant Products from Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Fekadu Fullas --- , USA Mammo Muchie --- , South AfricaIntellectual Property Rights (IPRs) has been the subject of voluminous literature. Much has been written about its origin, implications and dispositions. Yet, the subject of IPRs is fraught with murky issues, especially as it applies to developing countries. This paper... -
A Rapid Solar Transition is not only Possible, it is Imperative!
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: David Schwartzman --- Department of Biology, USA Peter Schwartzman --- Department of Environmental Studies, USACatastrophic climate change (C3) is inevitable if carbon emissions to the atmosphere are not rapidly reduced and the now unsafe atmospheric level (400 ppm) CO2 (and rising) is not brought down by sequestration technologies to below 350 ppm. C3 prevention is possible... -
Solar Energy Industry Future Uncertainty – An Opportunity for New Markets and Refocusing
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Hattie Carwell --- , USAThe 2012 solar panel pricing war between manufacturers in China, Europe and the USA, accompanied by the sales market slowdown due to government subsidy cuts, has produced uncertainty in the future of the growth of the solar industry. A solar... -
On the Links between Sustainable Wellbeing and Electric Energy Consumption
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Marcel J. Castro-Sitiriche --- Department of Electrical and Computer Engineering, Puerto Rico Mandoye Ndoye --- Electrical and Computer Engineering Department, USAAccess to electric energy is one of the drivers of wellbeing and universal access to energy has recently been identified as an important goal in the international community. A data-driven analysis of electric energy consumption and subjective wellbeing indicators is... -
A Disruptive Innovation Model for Indigenous Medicine Research: A Nigerian Perspective
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Michael O.S. Afolabi --- Centre for Healthcare Ethics, USANon-availability of affordable medicines remains a recurring theme in the healthcare sector of countries in the South where it hampers drug compliance and creates an ambience for continued morbidity and mortality. Countries in sub-Saharan Africa have attempted to remedy this... -
The Mobile Phone as the Tool to Redefine Savings for the Poor: Evidence from Kenya
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Tonny K. Omwansa --- School of Computing and informatics, Kenya Timothy M. Waema --- School of Computing and Informatics, Kenya Charlene Chen --- KickStart, Kenya Nicholas P. Sullivan --- The Fletcher School's Center for Emerging Market Enterprises, USAResearch conducted on the poor and their finances indicate that there is a need to develop financial instruments that specifically fit their needs. However, banks have not been able to provide such services, because the returns do not justify the... -
Mobile Money Technology and the Fast Disappearing African Digital Divide
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Joseph M. Kizza --- Department of Computer Science and Engineering, USAAfrica had a late start in the race to acquire most technologies and more so the information communication technologies (ICT). This last place in the race, compared to other continents, created the largest and deepest digital divide ever recorded in... -
Evolutionary relationships of Slash Pine (Pinus elliottii) with its temperate and tropical relatives
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: R C Schmidtling --- USDA Forest Service, SRS, USA V Hipkins --- USDA Forest Service, USAAllozymes in bud tissue and monoterpene contents in xylem oleoresin of slash pine (Pinus elliottii) were analyzed from populations across the natural distribution, as well as those from other species in the AUSTRALES pines. Allozyme diversity measures of slash pine... -
Quantifying the geographic range of Pinus patula var longipedunculata in Southern Mexico using morphologic and RAPD marker data
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: W.B. Dvorak --- Grinnells Laboratory, NCSU, Raleigh, NC., USA A.P. Jordan --- Grinnells Laboratory, NCSU, Raleigh, NC., USA J.L. Romero --- Grinnells Laboratory, NCSU, Raleigh, NC., USA G.R. Hodge --- Grinnells Laboratory, NCSU, Raleigh, NC., USA B.J. Furman --- Department of Biology, USAPinus patula var. longipedunculata occurs in southern Mexico, but the extent of its geographic range is poorly defined. Trees from some populations are morphologically similar to P. tecunumanii, which adds to the confusion over the variety's geographic range. Recent field... -
Mechanical Feller-buncher felling: An example study on timber value recovery in South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Steven Kewley --- , Loren Kollegg --- , USATimber breakage during felling reduced the value of timber harvested from a stand. This is especially evidentin thelarger saw timber stands where large trees are being harvested. Afield study was completed withthe objectiveofquantifying and comparingthe timber value recovery betweenconventional chainsaw... -
Interspecific hybrids in Zimbabwe: status review and future challenges
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: D.P. Gwaze --- , USASeveral F1 eucalypt and pine interspecific hybrids have been tested in Zimbabwe. The first hybrids tests were of pine species, and these were established in 1973. The results from these early tests were not spectacular and interest in hybrids was... -
Genetic improvement of Eucalyptus grandis using breeding seedling orchards and multiple population breeding strategy in Zimbabwe
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: W. J. Gapare --- Forest Sciences Centre, Canada R. D. Barnes --- Department of Plant Sciences, University of Oxford, United Kingdom D. P. Gwaze --- Forest Science Laboratory, College Station, USA B. I. Nyoka --- Forest Research Centre, ZimbabweEucalyptus grandis is commercially important in Zimbabwe and a breeding program has been in progress since 1962. A classical breeding strategy was used initially but, in 1981, the Multiple Population Breeding Strategy (MPBS) was implemented and the concept of the... -
Genotype by environment interaction for volume growth at 6 years of age in a series of five Pinus patula progeny trials in southern Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Arnulf Kanzler --- Sappi Forest Research, South Africa Sieg F. Hagedorn --- , South Africa Gary R. Hodge --- CAMCORE, USA William S. Dvorak --- CAMCORE, USAGenotype x environment interaction was investigated in a series of 5 Pinus patula progeny trials planted by the Institute for Commercial Forestry Research in southern Africa. The trials were established from Mpumalanga to the North-eastern Cape in a balanced 7x7... -
Effect of planting depth on growth of open-rooted Pinus elliottii and Pinus taeda seedlings in the United States
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Curtis L. VanderSchaaf --- School of Forestry and Wildlife Sciences, and Alabama Agricultural Experiment Station, USA David B. South --- School of Forestry and Wildlife Sciences, and Alabama Agricultural Experiment Station, USAThree studies in the Coastal Plain of Georgia were remeasured 7 or 8 years after planting to determine the effects of planting depth on field performance of open-rooted seedlings [root-collar diameter (RCD) ≤ 5 mm]. Average planting depth (i.e, shoot... -
The effect of the colonisation extent of arbuscular mycorrhizal fungi on the growth of pot grown Pterocarpus angolensis seedlings
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: S.N. Hengar --- Department of Forest Science, USA A.J. Valentine --- Department of Environmental Science, USA J.M. Theron --- Department of Forest Science, USAThe effect of the level of arbuscular mycorrhizal fungi (AMF) colonisation on the growth of Pterocarpus angolensis was studied. Mycorrhizal infected seedlings, showing either good or poor growth, under the same environmental conditions (temperature, humidity, light level) were analyzed for... -
Organic matter fuel briquettes as a forest conservation tool in Lake Malawi National Park
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: S. Rantala --- WWF Finland, Finland T. Tyynelä --- MTT Agrifood Research, Finland M. Vickers --- , USAEnvironmental degradation including deforestation is of great concern in the whole of sub-Saharan Africa, even in many protected areas. One of them is Lake Malawi National Park (LMNP), which encases the most populated village in Malawi, Chembe. The rise in... -
Insights from full-rotation Nelder spacing trials with Eucalyptus in São Paulo, Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: JL Stape --- Department of Forestry and Environmental Resources, USA D Binkley --- Natural Resource Ecology Laboratory, USAThe choice of spacing among trees for operational plantations is typically based on one or more experimental plantations that test for the response of tree and stand growth to a range of tree-to-tree distances. The most common design for spacing... -
Biomass harvesting in Eucalyptus plantations in Western Australia
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: MR Ghaffariyan --- CRC for Forestry, Australia M Brown --- CRC for Forestry, Australia M Acuna --- CRC for Forestry, Australia J Sessions --- Department of Forest Engineering, Resources and Management, USA M Kuehmaier --- Institute of Forest Engineering, Austria J Wiedemann --- CRC for Forestry, AustraliaAustralia is at an early stage of exploring the use of forest biomass to generate energy. This study evaluated the biomass yield and the productivity rates of equipment for harvesting biomass in a poor-quality eucalypt plantation. The operation consisted of... -
Lasiodiplodia species associated with dying Euphorbia ingens in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: JA van der Linde --- Department of Microbiology and Plant Pathology, DST/NRF Centre of Excellence in Tree Health Biotechnology, Forestry and Agricultural Biotechnology Institute, South Africa DL Six --- College of Forestry and Conservation, Department of Ecosystem and Conservation Sciences, USA MJ Wingfield --- Department of Microbiology and Plant Pathology, DST/NRF Centre of Excellence in Tree Health Biotechnology, Forestry and Agricultural Biotechnology Institute, South Africa J Roux --- Department of Microbiology and Plant Pathology, DST/NRF Centre of Excellence in Tree Health Biotechnology, Forestry and Agricultural Biotechnology Institute, South AfricaVarious species of Euphorbia occur in South Africa, including herbaceous, succulent and woody types. The largest of the succulent Euphorbia spp. in South Africa is Euphorbia ingens. These trees have been dying at an alarming rate in the Limpopo province... -
The strategic importance of applied tree conservation programs to the forest industry in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: WS Dvorak --- College of Natural Resources, Department of Forestry and Environmental Resources, USABecause of anticipated adverse climatic change and resulting increases in disease and insect attacks in forest plantations in the future, forest industries must maintain broad genetic bases for adaptability and pest resistance. Since the early 1980s, the South African forest... -
Comparisons between laboratory and field results of frost tolerance of pines from the southern USA and Mesoamerica planted as exotics
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: GR Hodge --- Department of Forestry and Natural Resources, USA WS Dvorak --- Department of Forestry and Natural Resources, USA ME Tighe --- Department of Forestry and Natural Resources, USAAn artificial freezing study was conducted with 14 pine species and varieties from Mexico and Central America, and the southern and western USA. The pines chosen represented major commercial plantation species in the Southern Hemisphere such as Pinus caribaea var... -
The Camcore program at North Carolina State University
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Barry Goldfarb --- Department of Forestry and Environmental Resources, USA -
Growth potential and genetic parameters of four Mesoamerican pines planted in the Southern Hemisphere
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: GR Hodge --- Department of Forestry and Natural Resources, USA WS Dvorak --- Department of Forestry and Natural Resources, USASummary results are reported from a total of 319 provenance/progeny tests of Pinus tecunumanii, P. maximinoi, P. patula and P. greggii that were established on sites in Brazil, Colombia and South Africa. Tests were measured for the growth traits height,... -
Machine productivity and residual harvesting residues associated with a cut-to-length harvest system in southern Tasmania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: MR Ghaffariyan --- , Australia J Sessions --- Department of Forest Engineering, Resources and Management, USA M Brown --- Office of PVC Research, AustraliaThe cut-to-length method is a preferred method for harvest of pine plantations in Australia. The cut-to-length method studied in southern Tasmania consists of a feller-buncher, processor, forwarder, grapple loader and tractortrailers that were producing only pulp logs for the plantation... -
Mixed-effects height–diameter models for ten conifers in the inland Northwest, USA
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Curtis L VanderSchaaf --- Minnesota Department of Natural Resources, USATo demonstrate the utility of mixed-effects height–diameter models when conducting forest inventories, mixed-effects height–diameter models are presented for several commercially and ecologically important conifers in the inland Northwest of the USA. After obtaining height–diameter measurements from a plot/stand of interest,... -
Conceptions of mental health among Ugandan youth orphaned by AIDS
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sheila Harms Ruth Kizza Joshua Sebunnya Susan JackThe AIDS epidemic has disproportionately affected developing or low-income sub-Saharan African countries. Within the context of the epidemic, children and youth are at risk of losing their parents at an early age. The experience of orphanhood due to AIDS has... -
Artistic activities and cultural activism as responses to HIV/AIDS in Harare, Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Susan Pietrzyk --- Department of Anthropology, United StatesOver the last two decades both the number and types of civil-society-led organisations involved in addressing HIV and AIDS have increased dramatically. In many cases, the work undertaken is thoughtfully researched, appropriately focused, and as a result produces positive outcomes... -
Interactions between Bulinus globosus and B. tropicus (Gastropoda: Planorbidae) in a pond experiment in Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Busani Ndlela MosesJ Chimbari Henry MadsenBulinus tropicus, which does not transmit Schistosoma haematobium, has been suggested for biological control of the schistosome intermediate host Bulinus globosus in Zimbabwe. The possible competition between B. tropicus and B. globosus was evaluated under semi-natural conditions in an enclosure... -
Water quality in South African temporarily open/closed estuaries: a conceptual model
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GavinC Snow Susan TaljaardOf the five types of estuaries found in South Africa, temporarily open/closed estuaries comprise approximately 70% of the total. This paper provides an overview and a simple conceptual model of the water quality features and characteristics of temporarily open/closed estuaries... -
Teachers' perspectives of mental health needs in Nigerian schools
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Patricia Ibeziako --- Department of Psychiatry, USA Tolulope Bella --- Department of Psychiatry, Nigeria Olayinka Omigbodun --- Department of Psychiatry, Nigeria Myron Belfer --- Department of Psychiatry, USAObjective: This study assessed teachers' perspectives on children's mental health needs and the development of school-based mental health programmes in South-West Nigeria. -
The contribution of the Important Bird Areas programme to the conservation of birds in Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JuliusA Arinaitwe PaulinusC Ngeh HazellS ThompsonThe Important Bird Areas (IBA) programme aims to identify and protect a network of sites of global importance for the conservation of birds in perpetuity. Sites are identified at national level through applying internationally-agreed criteria concerned with the vulnerability and... -
The capture of a large number of Red-billed Oxpeckers Buphagus erythrorhynchus and their subsequent maintenance and behaviour
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: TiffanyB Plantan --- Department of Biology, USA MarkJ Howitt --- , South Africa Arnaud le Roux --- , South Africa JosephA Heymans --- Department of Economic Development, South Africa Antoinette Kotzé --- , South Africa MichaelS Gaines --- Department of Biology, USAThe capture and relocation of oxpeckers Buphagus spp. has been previously documented on several occasions. However, the issue of capturing, transporting and holding, both temporarily and permanently, a large number (n > 100) of oxpeckers has yet to be addressed... -
A re-evaluation of morphological differences in the Karoo Thrush Turdus smithi – Olive Thrush Turdus olivaceus species complex
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: JW Wilson --- Department of Zoology, USA CT Symes --- School of Animal, Plant and Environmental Sciences, South Africa M Brown --- School of Biological and Conservation Sciences, South Africa BT Bonnevie --- Information Technology Division, South Africa DH de Swardt --- Department of Ornithology, South Africa D Hanmer --- , ZimbabweThere is confusion in the literature concerning the taxonomic status of the Turdus smithi—T. olivaceus species complex. Here we attempt to clarify morphological differences within this complex. In addition, we attempt to clarify identification of the respective taxa. Although mean... -
Reflexivity and the Grothendieck property for positive tensor products of Banach lattices-II
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Qingying Bu* --- Department of Mathematics, USA Michelle Craddock --- Department of Mathematics, USA Donghai Ji --- Department of Mathematics, P.R. ChinaLet ϕ be an Orlicz function such that ϕ and its complementary function ϕ* satisfy the Δ2-condition, let ℓϕ be an Orlicz sequence space associated to ϕ, and let X be a Banach lattice. Then ℓϕ ⊗F X (respectively, ℓϕ... -
Feynman's Electromagnetic Fields Induced by Moving Charges and the Existence and Uniqueness of Solutions to the N-Body Problem of Electrodynamics
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: VictorM. Bogdan --- Department of Mathematics, USAGiven n charges interacting with each other according to Feynman's law. Let (r j (t), v j (t)) denote the position and velocity of the charge q j . The list y(t) of all such vectors is... -
Convolution Operators on Spaces of Vector-Valued Functions that are Completely Continuous
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Paulette Saab --- Department of Mathematics, USALet X be a Banach space and let G be a compact abelian group. We study when convolution operators that are induced by a regular Borel scalar measure v on G are Completely Continuous (or Dunford-Pettis) operators (respectively, Weak-Dunford-Pettis) when... -
The role of pseudo-translations in early Afrikaans travel writing
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: JacobusA NaudéThe Afrikaans travel novel, Di Koningin fan Skeba (The Queen of Sheba) (1898a) is analysed within the framework of corpus-based translation studies. The pseudo-translations are compared to the rest of the narrative text of the Di Koningin fan Skeba, as... -
The culture-specific nature of headlines in Finansies & Tegniek and Finance Week
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: EricaS du Preez JacobusA NaudéFinansies & Tegniek and Finance Week, two South African financial magazines, offer the ideal research opportunity for a comparative study of English and Afrikaans texts. The fact that the magazines can be read internationally lends an interesting dimension to the... -
Acquiring academic literacy: a case of first-year extended degree programme students
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Susan van Schalkwyk --- Centre for Teaching and Learning, South Africa Eli Bitzer --- Department of Curriculum Studies, South Africa Christa van der Walt --- Department of Curriculum Studies, South AfricaThe way in which academic literacy is acquired is described in the work of many researchers, some of whom speak of students in higher education serving an apprenticeship during which they become acculturated into the discourse of the discipline. But... -
Results from six Pinus taeda nursery trials with the herbicide pendimethalin in the USA
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: DB South --- School of Forestry and Wildlife Sciences and Alabama Agricultural Experiment Station, USA TE Hill --- School of Forestry and Wildlife Sciences and Alabama Agricultural Experiment Station, USAPendimethalin is used by some nursery managers to control weeds in Eucalyptus and Pinus seedbeds and cutting beds of Pinus. Six trials were implemented in open-rooted seedbeds to test the response of Pinus taeda to postemergence (to the crop) applications... -
Productivity gains by fertilisation in Eucalyptus urophylla clonal plantations across gradients in site and stand conditions
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: JM de Aguiar Ferreira --- , Brazil JL Stape --- Department of Forestry and Environmental Resources, USANutrition management in Eucalyptus plantations is fundamental for sustaining high production. Fertilisation is routinely used to improve tree nutrition, providing profitable returns on large investments. Growth responses to fertilisation differ dramatically among sites, however, so efficient investment decisions in fertilisation... -
Image-based reflectance conversion of ASTER and IKONOS imagery as precursor to structural assessment of plantation forests in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: MT Gebreslasie --- School of Environmental Sciences, South Africa FB Ahmed --- School of Environmental Sciences, South Africa JAN van Aardt --- Laboratory for Imaging Algorithms and Systems, Center for Imaging Science, USAReflectance-converted imagery is a requirement for establishing temporally robust remote sensing algorithms, given the reduction of time-specific atmospheric effects. Thus, in this study image-based atmospheric correction methods for ASTER and IKONOS imagery for retrieving surface reflectance of plantation forests in... -
Toward sustainable harvesting of Africa's largest medicinal plant export (Prunus africana): a case study in Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: JR Maximillian --- College of Natural Resources, USA J O'Laughlin --- College of Natural Resources, USAGlobal demand for treating prostate disorders with Prunus africana bark extract has made P. africana Africa's largest medicinal plant export. Unsustainable harvesting practices can lead to local extirpations of this multipurpose tree. Survey research targeting P. africana harvesters in a... -
Bargaining for Truth and Reconciliation in South Africa: A Game-Theoretic Analysis
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Jerrob Duffy --- Arkin, Kaplan and Cohen LLP 570 Madison Ave., USA Don Ross --- School of Economics, University of Cape Town Private Bag, South AfricaAs regimes move from illiberal to liberal, post-transition justice methodology has been employed to engender truth and reconciliation. These normative concepts have evolved into a policy of creating truth and reconciliation commissions that trade civil and criminal amnesty with applicants... -
A defense of peace as a human right
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Patrick Hayden --- Louisiana Scholars’ College Northwestern State University, USARecent years have seen increased debate about the contributions that human rights make to the creation of conditions of peace. However, less attention has been paid to the claim that peace itself is a genuine human right. Whereas some critics... -
Methodological Naturalism Under Attack
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Michael Ruse --- Department of Philosophy Florida State University Tallahassee, USAMethodological naturalism is the assumption or working hypothesis that understanding nature (the physical world including humans and their thoughts and actions) can be understood in terms of unguided laws. There is no need to suppose interventions (miracles) from outside. It... -
Technology and the Time-Image: Deleuze and Postmodern Subjectivity
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Clayton Crockett --- Department of Philosophy and Religion, USAThis article develops an argument about the time-image in the thought of Gilles Deleuze, and relates it to a broader Continental philosophy of technology and culture, including Kant, Heidegger, Walter Benjamin, Jean Baudrillard, Paul Virilio and Antonio Negri. After grounding... -
Torturers and the Tortured
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Nancy Sherman --- Philosophy Department Georgetown University 215 New North 37 and O Streets, USAPatrick Lenta and Jessica Wolfendale have written two very thoughtful discussions on torture. A central question that arises in responding to these essays in terms of my recent book, Stoic Warriors, is whether ancient Stoicism affords any insights into both... -
Nietzsche and Ubuntu
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Rebecca Bamford --- Department of Philosophy, USAHere I argue that aspects of Nietzsche’s thought may be productively compared with the role played by the concept of ubuntu in talk of cultural renaissance in South Africa. I show that Nietzsche respects and writes for humanity conceived of... -
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... -
Reason and Rationality in Eze’s On Reason
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Bruce B. Janz --- Department of Philosophy University of CenRal Florida, USAThe title of Emmanuel Eze’s fmal, posthumously published book uses the words “reason” and “rationality” in a maimer that might suggest they are interchangeable. I would like to suggest that we not Reat them as the same, but rather tease... -
Social Philosophy in Postcolonial Africa: Some Preliminaries Concerning Communalism and Communitarianism
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Kwasi Wiredu --- Department of Philosophy University of South Florida, USA -
Philosophy and Porous Imagination: Between Coral Reefs
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Jeffner Allen --- Philosophy, Interpretation, Culture Binghamton University Binghamton, USADiving into the life of the Ropical coral reefs and Amadou Hampâté Ba’s reflections on the person conjoin in this work, which is at once philosophical and poetic. The permeable parameters of philosophy, which enable thought to hover between unstable... -
The Propositional vs. Hermeneutic Models of Cross-Cultural Understanding
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Xinli Wang --- Philosophy Department, USA Ling Xu --- Nagoya University of Commerce and Business Nagoya, JapanWhat the authors attempts to address in this paper is a Kantian question: not whether, but how is cross-cultural understanding possible? And specifically, what is a more effective approach for cross-cultural understanding? The answer lies in an analysis of two... -
Plato’s Cave
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: T. F. Morris --- Department of Philosophy George Washington University, USACurrent interpretations of Plato’s cave are obviously incorrect because they do not explain how what we hear does not come from what we see. I argue that Plato is saying that the colors we receive from our faculty of vision... -
The Power of Description in Manufacturing Insecurity: From Women’s Insecurity to Human Insecurity
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Farhana Loonat --- Political Science Department, USAThe use of descriptive language wields great power in defining women and men’s identities. When gendered language is used to construct women’s identities, it becomes one of the key contributing factors to women’s insecurity. This is all the more so... -
A Presuppositional Approach to Conceptual Schemes
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Xinli Wang --- Philosophy Department, USA Ling Xu --- Nagoya University of Commerce and Business, JapanThe current discussions of conceptual schemes and related topics are misguided; for they have been focused too much on the truth-conditional notions of meaning/concepts and translation/interpretation in Tarski’s style. It is exactly due to such a Quinean interpretation of the... -
An Empiricist Criterion of Meaning
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Yann Benétreau-Dupin --- Center for Philosophy and History of Science Boston University, USAThe meaning of scientific propositions is not always expressible in terms of observable phenomena. Such propositions involve generalizations, and also terms that are theoretical constructs. I study here how to assess the meaning of scientific propositions, that is, the specific... -
Robert Nozick, Libertarian?
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Paul Boaheng --- Department of Government and History, USA Wesley Cooper --- University of Alberta, CanadaWe set out a variety of material from Nozick’s work after -Anarchy, State, and Utopia- that tends to show that, despite his protestations of fidelity to libertarianism in-Invariances- and interviews before his death, his thought took directions inconsistent with the... -
Bodies as open projects: reflections on gender and sexuality
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Maria Elizabeth Susanna (Elbie) van den Berg --- Department of Philosophy & Systematic Theology,This article argues that the social constructivist paradigm falls into the same dualistic trap as biological essentialism when attempting to respond to questions of gender and sexuality. I argue that social constructivism, like biological determinism, presumes a ‘split’ world, where... -
Vice’s Vicious Virtues: The Supererogatory as Obligatory
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Charles W. Mills --- Dept. of Philosophy, Kresge Hall 2–335, USASamantha Vice’s essay, ‘How Do I Live in This Strange Place?’, is a sensitive and subtle exploration of the difficult moral terrain of the issues of white responsibility and white moral self-reform in a South Africa that is formally post-apartheid,... -
Antiracist Moral Identities, or Iris Murdoch in South Africa
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Lawrence Blum --- Department of Philosophy, USAI argue that Samantha Vice understates the moral resources white people have available to them to minimize their falling into distorted ways of perceiving and responding to the world caused by bare white advantage. In doing so, she paints an... -
First records in Guinea Bissau of Adamawa Turtle Dove Streptopelia hypopyrrha (Columbidae), with data on m
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Mariana Carvalho Susana DiasThere are no confirmed records of the Adamawa Turtle Dove Streptopelia hypopyrrha in north-eastern Guinea Bissau and there is very little information available on the biology of the species. Eight individuals of the Adamawa Turtle Dove were identified from the... -
Steven Edward Piper (28 February 1945-15 March 2009)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Michael Lawes --- School for Environmental Research, Australia Dale Schultz --- , USA Craig Hilton-Taylor --- , UK Harrie -
3. THE CROWNED CRANE (Balearica regulorum)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: E.B. Cusack -
1. A BRIEF SURVEY OF THE BIRDS OF BLOEMHOF DISTRICT
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: D. C.H. PLOWES E. CUSACK -
Nitrogen uptake dynamics of a persistent cyanobacterium Cyanothece sp. bloom in Lake St Lucia, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SJ du Plooy --- DST/NRF Research Chair in Shallow Water Ecosystems, South Africa AJ Smit --- School of Life Sciences, South Africa R Perissinotto --- DST/NRF Research Chair in Shallow Water Ecosystems, South Africa DG Muir --- Department of Biology, Medgar Evers College, USAWorldwide, persistent cyanobacterial blooms are becoming more frequent and are often associated with effects of global climate change. In June 2009, a widespread bloom of the unicellular cyanobacterium, Cyanothece sp., appeared in North Lake and False Bay of Lake St... -
Notes on African Crowned Eagle Stephanoaetus coronatus diet in savanna and forest in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Craig T Symes --- School of Animal, Plant and Environmental Sciences, South Africa Annie R Antonites --- Anthropology Department, USAOur study reports on contrasts in prey items from African Crowned Eagle Stephanoaetus coronatus nesting in forest (n = 1) and savanna (n = 2) biomes in KwaZulu-Natal, South Africa. At least 12 taxa were identified at a forest nest,... -
The phylogenetic affinities of the Socotra Bunting Emberiza socotrana
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Manuel Schweizer --- Naturhistorisches Museum der Burgergemeinde Bern, Switzerland Guy M Kirwan --- Field Museum of Natural History, USAThe monophyly of the African ‘brown bunting’ complex was corroborated by a recent molecular study. However, the little-known Socotran endemic Emberiza socotrana, which is morphologically similar to the other taxa in this complex, was not included. Here we present a... -
Birds in a Changing Environment: Report on the 13th Pan-African Ornithological Congress in Arusha, Tanzania
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Colleen Downs --- School of Life Sciences, South Africa Doug Harebottle --- Animal Demography Unit, South Africa Tim Dodman --- Wetlands International, The Netherlands Abdoulaye Ndiaye --- Wetlands International, The Netherlands Phoebe Barnard --- South African National Biodiversity Institute, South Africa Brian Huntley --- School of Biological and Biomedical Sciences, UK Darcy Ogada --- The Peregrine Fund, USA Andre Botha --- Endangered Wildlife Trust, South Africa Fleur Ng'weno --- Nature Kenya (East Africa Natural History Society), Kenya -
Structural matrix algebras related to finite distributive lattices
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: E. Akkurt --- Gebze Institute of Technology, Turkey M. Akkurt --- Gebze Institute of Technology, Turkey G.P. Barker --- University of Missouri, Kansas City, USAIn this paper, we investigate the relation between a structural matrix algebra and the lattice properties of its lattice of invariant subspaces, and reprove known results in a fresh and an explanatory way. Moreover, we also prove the theorem which... -
Topology without the union axiom (revisited)
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H.L. Bentley --- Department of Mathematics, USA R.G. Ori --- University of Zululand, South AfricaThree papers, [2], [3], and [4], written by H.L. Bentley and P. Slepian in 1967 were concerned with bases of a topological space, but with little mention of the corresponding topology. Morphisms considered then were continuous maps with respect to... -
On the existence and approximation of fixed points for Ćirić type contractive mappings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: B. Djafari-Rouhani --- Department of Mathematical Sciences, USA Sirous Moradi --- Department of Mathematics, IranLet (X, d) be a complete convex metric space, and C be a nonempty, closed and convex subset of X. We consider Ćirić type contractive self-mappings T of C satisfying: for all x, y ∈ C, where 0 < a... -
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... -
Ability to manage diabetes—community health workers' knowledge, attitudes and beliefs
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Gail D Hughes --- Department of Preventive Medicine and Division of General Internal Medicine, USA Thandi Puoane --- School of Public Health, University of the Western Cape, Hazel Bradley --- School of Public Health, University of the Western Cape,Background. Diabetes constitutes a significant health problem in South Africa. Early detection and good management can prevent or delay complications, with national guidelines for diabetes treatment now available to facilitate this. However, problems are being encountered with their implementation and... -
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), -
Pain management in the outpatient surgical setting
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Robert S Wolf --- American Sports Medicine Institute, USA -
Ethanol and tobacco abuse in pregnancy: Anaesthetic considerations
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: K M Kuczkowski --- Departments of Anesthesiology and Reproductive Medicine, USA -
Clinical challenges in the co-management of diabetes mellitus and tuberculosis in southern Africa
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: MJA Reid --- Perleman School of Medicine, University of Pennsylvania, USA N McFadden --- Perleman School of Medicine, University of Pennsylvania, USA BM Tsima --- School of Medicine, University of Botswana, BotswanaOver the past 20 years, tuberculosis incidence in southern Africa has increased at an alarming rate, fuelled primarily by the human immunodeficiency virus epidemic. The emerging prevalence of diabetes mellitus in the region represents a new threat to tuberculosis control... -
How deep is the sleep? Looking into anesthesia depths
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: P Foster --- Department of Anesthesia, Penn State, USA -
Case report: Awake insertion of the intubating laryngeal mask airway using dexmedetomidine sedation
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Panchali Dhar --- Department of Anesthesiology, USA Tiffany R. Tedore --- Department of Anesthesiology, USA -
Perioperative care of a pregnant trauma victim: a review of anesthetic considerations
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: KM Kuczkowski --- Departments of Anesthesiology and Reproductive Medicine, USA -
Advances in obstetric anesthesia: ambulation during labor with combined spinal-epidural analgesia
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: KM Kuczkowski --- Departments of Anesthesiology and Reproductive Medicine, USAEpidural analgesia is widely considered as the most effective method of providing pain relief in labor. However, epidural labor analgesia is not a generic procedure and many technical modifications have been invented over time. Continuous search for a balanced labor... -
Post-operative symptoms at home in children following day case surgery
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: AF Faponle --- Department of Anaesthesia, Nigeria UEd Usang --- Department of Surgery, NigeriaBackground: This prospective questionnaire-based study examined the post-operative symptoms encountered by children who underwent day case surgery at a dedicated day case surgery unit. The study evaluated the post-operative symptoms that occurred at home. The parents evaluated the instructions given... -
Anaesthesia for the “syndromic” child
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A Bösenberg --- ProfessorPediatric Anesthesia, Seattle Children's Hospital and University of Washington, USA -
Chronic pain in the community: a survey in a township in Mthatha, Eastern Cape, South Africa
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: EU Igumbor --- School of Public Health, University of the Western Cape, South Africa TR Puoane --- School of Public Health, University of the Western Cape, South Africa SA Gansky --- Division of Oral Epidemiology, USA O Plesh --- Department of Preventive and Restorative Dental Science, USABackground: Comprehensive information is needed on the epidemiology and burden of chronic pain in the population for the development of appropriate health interventions. This study aimed to determine the prevalence, severity, risk indicators and responses of chronic pain among adults... -
The difficult paediatric airway
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: CJ Coté --- Harvard Medical School, USA -
Anaesthetic safety of the Macintosh® oral laryngeal spray device
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: RJ Ing --- School of Medicine, University of Colorado Associate Director of Clinical Research, USA DM Craig --- Department of Surgery, USA A Nowosad --- , MD Twite --- Department of Anaesthesiology, USA AT Bósenberg --- Department of Anesthesiology, USAPrimary hypothesis: A single, maximal hand squeeze of the Macintosh® laryngeal spray atomiser bulb may deliver a toxic dose of local anaesthetic to the oral mucosa of small infants. -
Regional anaesthesia in children: an update
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: AT Bosenberg --- Department Anesthesiology and Pain Management, Faculty Health Sciences, USARegional anaesthesia for children continues to grow in popularity. The potential benefits of regional anaesthesia over more conventional methods are well recognised, but the level of evidence is small since there are few well designed randomised controlled studies on infants... -
Avoiding adverse outcomes in anaesthesia. The relevant As: allergy, asthma airway and anaphylaxis
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A Bosenberg --- Department Anesthesiology and Pain Management, Faculty Health Sciences, USAThe perioperative preparation of children presenting for surgery aims to identify medical problems that might influence the outcome and to institute management strategies to reduce those risks. Adverse respiratory events remain a significant cause of morbidity and mortality in modern... -
Temperature monitoring: the consequences and prevention of mild perioperative hypothermia
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: DI Sessler --- Department of Outcomes Research, USA -
Running the rat race
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: W Pearce --- Department of Anesthesia, Penn State Milton S Hershey Medical Center, USA -
Field anaesthesia of the African elephant (Loxodonta africana)
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: GF Stegmann --- Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, D Grobler --- Catchco Africa, J Zuba --- San Diego Wild Animal Park, USA -
Patient and practitioner perspectives on postoperative pain control in Kumasi, Ghana
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: S Murthy --- Department of Anesthesia, Critical Care and Pain Medicine, USA A Antwi-Kusi --- Department of Anaesthesia and Intensive Care, Ghana AR Jabir --- Department of Pediatrics, Division of Pediatric Critical Care Medicine, USA G Ofori-Amanfo --- Department of Pediatrics, Division of Pediatric Critical Care Medicine, USAObjective: The treatment of pain has gained momentum in health care around the world. Nevertheless, pain is undertreated, particularly in the developing world. We sought to compare patient and healthcare practitioner perspectives of postoperative pain and assess perioperative analgesia utilisation... -
Myths of anterior mediastinal masses
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: M Castillo --- Mt. Sinai Hospital, USA P Slinger --- University of Toronto, CanadaThis lecture will discuss the risks that are associated with the management of patients with anterior mediastinal masses. A plan for risk stratification and preoperative evaluation of such patients will be developed. The indications and available options for anaesthetic management... -
Perioperative care of a child with Ullrich congenital muscular dystrophy during posterior spinal fusion
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: DP Martin --- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, USA JD Tobias --- Department of Anesthesiology and Pain Medicine, USA S Warhadpande --- The Ohio State University School of Medicine, USA A Beebe --- Department of Orthopedic Surgery, USA J Klamar --- Department of Orthopedic Surgery, USAUllrich congenital muscular dystrophy (UCMD) is one of a group of disorders known as congenital muscular dystrophies. Severe hypotonia and early diaphragmatic involvement may lead to respiratory failure early in the disease process. We present the case of a nine-year-old... -
A “Last Lecture” programme for medical schools and teaching hospitals
Item type: Journal Article • Journal: South African Family Practice • Authors: EP Laabes --- Department of Family Medicine, Nigeria J Sibeko --- Reproductive Health Research Unit, Department of Obstetrics and Gynaecology, South Africa RH Glew --- Department of Biochemistry and Molecular Biology, USA -
Pain as a reason for primary care visits: cross-sectional survey in a rural and periurban health clinic in the Eastern Cape, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: EU Igumbor --- School of Public Health, University of the Western Cape, South Africa T Puoane --- School of Public Health, University of the Western Cape, South Africa SA Gansky --- School of Dentistry, University of California, USA O Plesh --- School of Dentistry, University of California, USABackground: The burden of pain in primary care has not been described for South Africa. This study aimed to determine the prevalence of pain in primary care and to characterise pain among adult patients attending a rural and a periurban... -
Does health-related quality of life in asthma patients correlate with the clinical indices?
Item type: Journal Article • Journal: South African Family Practice • Authors: OA Oni --- McNeal PL, USA GE Erhabor --- Faculty of Clinical Sciences, Nigeria PO Oluboyo --- Department of Pulmonary Medicine, Faculty of Health Sciences, South AfricaBackground: Assessment of health-related quality of life (HRQOL) has been shown to be more relevant to patients who have chronic diseases such as asthma, as achieving the best possible quality of life is the paramount objective in the management of... -
Love, lust and the emotional context of multiple and concurrent sexual partnerships among young Swazi adults
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Allison Ruark --- Department of International Health, USA Lunga Dlamini --- Department of International Health, USA Nonhlanhla Mazibuko --- Department of International Health, USA Edward C Green --- Department of Population, Family and Reproductive Health, USA Caitlin Kennedy --- Department of International Health, USA Amy Nunn --- Division of Infectious Diseases, USA Timothy Flanigan --- Division of Infectious Diseases, USA Pamela J Surkan --- Department of International Health, USAMen and women in Swaziland who are engaged in multiple or concurrent sexual partnerships, or who have sexual partners with concurrent partners, face a very high risk of HIV infection. Ninety-four in-depth interviews were conducted with 28 Swazi men and... -
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... -
The economics, financing and implementation of HIV treatment as prevention: What will it take to get there?
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: David Wilson --- The World Bank Group, USA Jessica Taaffe --- The World Bank Group, USA Nicole Fraser-Hurt --- The World Bank Group, USA Marelize Gorgens --- The World Bank Group, USAThe 2013 Lancet Commission Report, Global Health 2035, rightly pointed out that we are at a unique place in history where a “grand convergence” of health initiatives to reduce both infectious diseases, and child and maternal mortality – diseases that... -
Domains of H tone spreading and the noun class prefix in Xitsonga
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Seunghun J Lee --- English Department, USAThis article reports results from an investigation of domains of H tone spreading in Xitsonga, a southern Bantu language. High (H) tone spreads into toneless syllables but it spreads only to the first syllable if a nominal root has an... -
Headed tone spans: Binarity and minimal overlap
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Micheal Key --- Department of Linguistics, USA Lee Bickmore --- Department of Anthropology, AS 238, USAWe present a theoretical framework for tone that builds on the Headed Spans theory of assimilation. We propose that spans have two important properties, which we term binarity and minimal overlap. Cilungu (Bantu, Zambia) exhibits a process of binary H... -
Letters
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: LW Retief --- , South Africa Pat Foster --- , USA Hannah Brand --- , -
What to do if no blood is available but the patient is bleeding?
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: CF Mackenzie --- National Study Center for Trauma and Emergency Medical Systems, A Shander --- Chief Department of Anesthesiology, Critical Care and Hyperbaric Medicine, Englewood Hospital and Medical Center, USABackground -
A situation pregnant with danger: Trauma in pregnancy
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: KM Kuczkowski --- Professor of Anaesthesiology and Reproductive Medicine, Director of Obstetric Anaesthesia Departments of Anaesthesiology and Reproductive Medicine, USATrauma in pregnancy is currently a leading cause of non-pregnancy-related maternal death, and maternal death remains the most common cause of foetal demise. The most common aetiologies of trauma in pregnancy include transportation accidents, falls, violent assaults and burn injuries... -
Anaesthesia in the radiological suite (remote location) on an outpatient basis
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: RS Hannallah --- Professor of Anesthesiology and Pediatrics, George Washington University, USA -
Anesthesia for non-cardiac surgery in children with congenital heart disease
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: ST Verghese --- Children's National Medical Center, USA RS Hannallah --- Children's National Medical Center, USA -
The world we live in —how should simulation be part of continuing professional education?Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: WB Murray --- Pennsylvania State University College of Medicine, USA -
Anaesthesia and the brain
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: MF Newman --- Department of Anesthesiology, USAThe brain is often a window to early changes in blood flow, tissue perfusion, or early neural damage manifested by a decline in higher cortical functions including recall memory and cognitive processing. The elderly population is particularly at risk of... -
The Eudaimonic Turn: Well-being in Literary Studies
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jeremy. D. W. Clifton --- University of Pennsylvania, USA -
Association of the pitch canker pathogen Fusarium circinatum with grass hosts in commercial pine production areas of South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Cassandra L Swett --- Department of Plant Pathology, USA Bernice Porter --- Forestry and Agricultural Biotechnology Institute, Department of Microbiology and Plant Pathology, South Africa Gerda Fourie --- Forestry and Agricultural Biotechnology Institute, Department of Microbiology and Plant Pathology, South Africa Emma T Steenkamp --- Forestry and Agricultural Biotechnology Institute, Department of Microbiology and Plant Pathology, South Africa Thomas R Gordon --- Department of Plant Pathology, USA Michael J Wingfield --- Forestry and Agricultural Biotechnology Institute, Department of Microbiology and Plant Pathology, South AfricaThe pitch canker pathogen, Fusarium circinatum, has major impacts on production in pine nurseries and plantations in South Africa. Thus far, efforts to reduce local spread have focused on rouging of infected pines and sanitation to eliminate local sources of... -
Genetic parameters for Fusarium circinatum tolerance within openpollinated families of Pinus patula tested at screening facilities in South Africa and the USA
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Andre Nel --- Sappi Forest Research, South Africa Gary R Hodge --- Department of Forestry and Natural Resources, USA Kgosi E Mongwaketsi --- Sappi Forest Research, South Africa Arnulf Kanzler --- Sappi Forest Research, South AfricaThe pine pitch canker fungus, Fusarium circinatum, has caused large-scale mortality of Pinus patula Schiede & Deppe ex Schltdl. & Cham. crops in South African nurseries. This disease is now managed with strict hygiene practices and mortality in commercial nurseries... -
Rationing and children's constitutional health-care rights
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Willem A. Landman --- Department of Medical Humanities, USA Lesley D. Henley --- Institute of Child Health, South AfricaA commitment to equality of basic opportunities, or equality and equity respectively in the Bill of Rights and the White Paper on Health, provides the legal and moral foundation for future health-care for children in South Africa. In reality, extreme... -
Book Reviews
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Andrea Hurst --- , USA Andrea Hurst --- , USA Andrea Hurst --- , USA -
Clinical challenges in the co-management of diabetes mellitus and tuberculosis in southern Africa
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: MJA Reid --- Perleman School of Medicine, University of Pennsylvania, USA N McFadden --- Perleman School of Medicine, University of Pennsylvania, USA BM Tsima --- School of Medicine, University of Botswana, BotswanaOver the past 20 years, tuberculosis incidence in southern Africa has increased at an alarming rate, fuelled primarily by the human immunodeficiency virus epidemic. The emerging prevalence of diabetes mellitus in the region represents a new threat to tuberculosis control... -
The future of warm-season, tropical and subtropical forage legumes in sustainable pastures and rangelands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: James P Muir --- Borlaug Institute, South Africa William D Pitman --- Hill Farm Research Station, USA Jose C Dubeux --- Universidade Federal Rural de Pernambuco, Brazil Jamie L Foster --- Texas A&M AgriLife Research, USAForage legumes have the potential to contribute substantially to warm-season, subtropical and tropical pastures and rangelands. Compared to grasses, they have advantages in accessing subsoil nutrients and moisture; legumes typically concentrate protein in forage, even in infertile soils, and they... -
The miracle workers: obstacles and opportunities for restoring sight to children in KwaZulu-Natal
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Susan Levine --- Department of Social Anthropology, South Africa Lene Øverland --- Orbis Africa, Kings Cross Corner, South Africa Prasidh Ramson --- Orbis Africa, Kings Cross Corner, South AfricaThe case studies presented in this paper reflect on the experiences of parents and the caregivers of children from the province of KwaZulu-Natal who overcame multiple obstacles to prevent childhood blindness due to cataract. Borrowing Sarah Franklin's metaphor of an... -
The highest poverty: monastic rules and form-of-life
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Kerry Chance --- W.E.B. Du Bois Research Institute, The Hutchins Center for African and African American Research, USA -
African philosophy: a key to African innovation and development
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: C. Verharen --- Department of Philosophy, USA B. Gutema --- Department of Philosophy, Ethiopia J. Tharakan --- Department of Chemical Engineering, F. Bugarin --- Department of Sociology and Anthropology, J. Fortunak --- Department of Chemistry and Pharmaceutical Sciences, G. Kadoda --- Department of Computer Science, Sudan M. Liu --- School of Social Work, G. Middendorf --- Department of Biology,This essay demonstrates how African philosophy can be a key to African innovation and development. Its first section illustrates how philosophy as a discipline drives innovation in science and technology. The second part proposes a new discipline linking science, engineering... -
Analysis of the impact of production technology and gender on under-utilised indigenous vegetables production in south-western Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Oluwagbenga T Alao --- College of Agriculture, Nigeria Odunayo C Adebooye --- College of Agriculture, Nigeria Olanike F Deji --- Faculty of Agriculture, Nigeria Kaothar M Idris-Adeniyi --- College of Agriculture, Nigeria Oluwafemi Agbola --- College of Agriculture, Nigeria Ahmed O Busari --- College of Agriculture, NigeriaWe quantified the impact of new production technologies on total land area allocated to production of six (ugu, igbagba, tete atetedaye, woorowo, ogunmo and odu) selected high-premium under-utilised indigenous vegetables (UIVs) in south-western Nigeria. Leaf yields and accruable returns were... -
First-year course experience and college adjustment: a case study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Tumani Malinga–Musamba --- Department of Social Work, BotswanaThis is a study on first year students’ experiences to adjusting to university life. Secondary data analysis was carried out on 49 cases, where students were required to record how they view university life and how they have adjusted. Thematic... -
Developing and implementing global gender policy to reduce HIV and AIDS in low- and middle -income countries: Policy makers’ perspectives
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Shannon Olinyk --- University of Michigan Columbus, USA Andrew Gibbs --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Catherine Campbell --- Institute of Social Psychology, London School of Economics and Political Science, UKGender inequalities have been recognised as central to the HIV epidemic for many years. In response, a range of gender policies have been developed in attempts to mitigate the impact and transform gender relations. However, the effects of these policies... -
Reproductive behaviour among women on antiretroviral therapy in Botswana: mismatched pregnancy plans and contraceptive use
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Michelle M Schaan --- University of Kwazulu-Natal, South Africa Myra Taylor --- University of Kwazulu-Natal, South Africa Richard Marlink --- Harvard School of Public Health AIDS Initiative, USAUnderstanding pregnancy planning and contraceptive use is important in preventing unplanned/unwanted pregnancies among women on antiretroviral therapy (ART). Through a cross-sectional survey of 155 women living with HIV on ART in Botswana (mean age = 36), bivariate/multivariate analyses were used... -
A critical engagement with the DSM-5 and psychiatric diagnosis
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Susan Kriegler --- Department of Educational Psychology, South Africa Suzanne E Bester --- Department of Educational Psychology, South AfricaClassifications in psychiatry can result in the reification of hypothetical approaches, arbitrary categorisation and social injustice. This article applies a social constructivist approach to critique the DSM-5 as a neurobiological model of psychiatric diagnosis which ignores psychosocial factors such as... -
Cardinal functions Fθ(X) and tθ(X) for H-closed spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Filippo Cammaroto --- Dipartimento di Matematica, Italy Andrei Catalioto --- Dipartimento di Matematica, Italy Jack Porter --- Department of Mathematics, USAThis article extends the results proved by Cammaroto and Kočinac in 1993 by showing that tθ(X) = tθ(Xs) = t(Xs) = Fθ(X) = Fθ(Xs) = F(Xs) for every H-closed and Urysohn space. Examples are developed to study all of the... -
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... -
Anaesthesia and the developing brain
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Jansie Prozesky --- Department of Pediatric Anesthesia, USAIncreasing concern about the effect of anaesthesia on the infant and young child is being raised by healthcare practitioners, as well as the public. Immature neurons exposed to anaesthesia may lead to apoptosis and long-term neurobehavioural deficits in animals. The... -
Effects of an exercise programme with people living with HIV: research in a disadvantaged setting
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Clemens Ley --- Universität Wien, Institut für Sportwissenschaft, Austria Lloyd Leach --- University of the Western Cape, Department of Sport, Recreation and Exercise Science, South Africa María Rato Barrio --- Palacky University Olomouc, Department of Development Studies, Czech Republic Susan Bassett --- University of the Western Cape, Department of Sport, Recreation and Exercise Science, South AfricaThis study aimed to analyse the physical health effects of a community based 10-week physical activity programme with people living with HIV. It was developed, implemented and evaluated in a disadvantaged community in South Africa. A pre-post research design was... -
Willingness to participate in future HIV prevention trials in Beira, Mozambique
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ivete Meque --- Universidade Católica de Moçambique/Catholic University of Mozambique (UCM), Centro de Investigação de Doenças Infecciosas/Research Center for Infectious Diseases (CIDI), Mozambique Karine Dubé --- FHI 360, USA Lotte Bierhuizen --- Amsterdam Institute of Global Health and Development (AIGHD), The Netherlands Arlinda Zango --- Universidade Católica de Moçambique/Catholic University of Mozambique (UCM), Centro de Investigação de Doenças Infecciosas/Research Center for Infectious Diseases (CIDI), Mozambique Nienke Veldhuijzen --- Amsterdam Institute of Global Health and Development (AIGHD), The Netherlands Fidelina Cumbe --- Universidade Católica de Moçambique/Catholic University of Mozambique (UCM), Centro de Investigação de Doenças Infecciosas/Research Center for Infectious Diseases (CIDI), Mozambique Paul J Feldblum --- FHI 360, USA Janneke van de Wijgert --- Amsterdam Institute of Global Health and Development (AIGHD), The NetherlandsIn preparation for trials of new HIV prevention methods, willingness to participate (WTP) was assessed in Beira, Mozambique. A totla of 1 019 women participating in an HIV incidence study, and 97 men participating in a separate WTP survey, were... -
Innovation Policy Reforms, Emerging Role Models and Bridge Institutions: Evidence from North African Economies
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abdelkader Djeflat --- Department of Economics, Labo Clerse UMR 8019-Maghtech Network, France Yevgeny Kuznetsov --- Economic Policy and Debt Department, Wolrd Bank, USAThis article focuses on role models of modern innovation based development and public interventions to diffuse and scale up these role models. It discusses the so-called bridge institutions of innovation, which transform skills into knowledge valued by markets. It shows... -
Foreign direct investment and local technological capabilities in least developed countries: some evidence from the Tanzanian manufacturing sector
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Bitrina Diyamett --- Science, Technology and Innovation Policy Research Organisation (STIPRO), Tanzania Musambya Mutambla --- Science, Technology and Innovation Policy Research Organisation (STIPRO), TanzaniaForeign direct investment has been found to be one of the very important ways of building local technological capabilities for developing countries, and an important channel through which international diffusion of knowledge and technology takes place. While this has been... -
Anti-crisis
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jude Fokwang --- Department of Sociology, USA -
The impact of a mental health teaching programme on rural and urban secondary school students’ perceptions of mental illness in southwest Nigeria
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Tolulope Bella-Awusah --- Department of Psychiatry, College of Medicine, Nigeria Babatunde Adedokun --- Department of Epidemiology and Medical Statistics, College of Medicine, Nigeria Nisha Dogra --- Greenwood Institute for Child Health, United Kingdom Olayinka Omigbodun --- Department of Psychiatry, College of Medicine, Nigeria -
Performance Poetry and Political Conscientization in the Horn of Africa: Examples from the Somali Bantu Jareer Community
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Mohamed A. Eno --- Dept. of African Studies, St Clements University Somalia; & Center for Research and Development, Omar A. Eno --- College of Urban and Public Affairs, Portland State University, Oregon, USA; & Faculty of Interdisciplinary Studies,Ever since the arrival of colonialism gained momentum in the country, Somali literature has been approached narrowly from the tutelage of the pastoral culture. Colonial as well as early Somali writers have taken the comfort of disdaining the study of... -
Home range and diving behaviour of Heaviside's dolphins monitored by satellite off the west coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RW Davis --- Department of Marine Biology, USA JHM David --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa MA Meÿer --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa K Sekiguchi --- International Christian University, Japan PB Best --- Mammal Research Institute, South Africa M Dassis --- Instituto de Investigaciones Marinas y Costeras, Facultad de Ciencias Exactas y Naturales, Argentina DH Rodríguez --- Instituto de Investigaciones Marinas y Costeras, Facultad de Ciencias Exactas y Naturales, ArgentinaThree Heaviside's dolphins Cephalorhynchus heavisidii were fitted with satellite depth recorders off the west coast of South Africa during February–April 1997 and monitored for 51, 73 and 130 days, respectively. In total, 345 locations were received from the three animals,... -
Research and conservation of the larger parrots of Africa and Madagascar: a review of knowledge gaps and opportunities
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Rowan O Martin --- Percy FitzPatrick Institute of African Ornithology, South Africa Michael R Perrin --- Research Centre for African Parrot Conservation, South Africa Rutledge S Boyes --- Percy FitzPatrick Institute of African Ornithology, South Africa Yilma D Abebe --- Ethiopian Wildlife and Natural History Society, Ethiopia Nathaniel D Annorbah --- Division of Biology and Conservation Ecology, UK Augustus Asamoah --- Environmental Sustainability Project, Accra Dieudonné Bizimana --- Association Burundaise pour la protection des Oiseaux, Burundi Kadiri S Bobo --- Department of Forestry, Faculty of Agronomy and Agricultural Sciences, Cameroon Nancy Bunbury --- Seychelles Islands Foundation, Seychelles Joost Brouwer --- Niger Bird Database, The Netherlands Moussa S Diop --- AfriWet Consultants, Senegal Mihret Ewnetu --- Ethiopian Wildlife Conservation Authority, Ethiopia Roger C Fotso --- Wildlife Conservation Society, Cameroon Jerry Garteh --- Society for the Conservation of Nature of Liberia, Liberia Philip Hall --- AP Leventis Ornithological Research Institute, Nigeria Lars H Holbech --- Department of Animal Biology and Conservation Science, Ghana Ireene R Madindou --- Ornithology Section, Kenya Fiona Maisels --- Global Conservation Program, USA Jérôme Mokoko --- Wildlife Conservation Society, Republic of Congo Ronald Mulwa --- Ornithology Section, Kenya Anna Reuleaux --- Seychelles Islands Foundation, Seychelles Craig Symes --- School of Animal, Plant and Environmental Sciences, South Africa Simon Tamungang --- Wildlife Ecology and Management Group, Cameroon Stuart Taylor --- School of Science, Faculty of Science and Engineering, New Zealand Simon Valle --- Division of Biology and Conservation Ecology, UK Matthias Waltert --- Conservation Biology/Workgroup on Endangered Species, Germany Mengistu Wondafrash --- Ethiopian Wildlife and Natural History Society, EthiopiaParrot populations in Africa and Madagascar are declining and the need for conservation actions to address threats is increasingly recognised. Effective conservation requires a robust knowledge base on which decisions over appropriate actions can be made, yet at present there... -
The disjunctive domination number of a graph
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Wayne Goddard --- Department of Mathematical Sciences, USA Michael A. Henning --- Department of Mathematics, South Africa Charles A. McPillan --- Department of Mathematical Sciences, USAFor a positive integer b, we define a set S of vertices in a graph G as a b-disjunctive dominating set if every vertex not in S is adjacent to a vertex of S or has at least b vertices... -
Einstein half lightlike submanifolds of a Lorentzian space form with a semi-symmetric metric connection
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: D.H. Jin --- Department of Mathematics, Republic of Korea J.W. Lee --- Department of Mathematics, USA.In this paper, we prove a classification theorem for Einstein half lightlike sbmanifolds M of a Lorentzian space form (M (c), g) of constant curvature c equipped with a semi-symmetric metric connection subject such that the second fundamental forms of... -
Determinants of blood pressure control in rural KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: Polly Duncan --- School of Social and Community Medicine, United Kingdom Laura Howe --- School of Social and Community Medicine, United Kingdom Zibonele Manakusa --- Manguzi Hospital, South Africa Sarah Purdy --- School of Social and Community Medicine, United KingdomBackground: Hypertension is a common problem in South Africa and is known to be inadequately treated and poorly controlled. -
Bana etlong retlobapala: examining children's musical games on a Soweto playground
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Susan Harrop-Allin --- The Wits School of Arts, Private Bag 3, University of the Witwatersrand,This article reports on research that investigated the rich tradition of South African urban township children's games. Based on ethnographic observations and documentation of Soweto children's playground games over a period of six months, this study examines musical games children... -
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... -
Applied disease screening and selection program for resistance to vascular wilt in Hawaiian Acacia koa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Nicklos S Dudley --- Hawai'i Agriculture Research Center, USA Tyler C Jones --- Hawai'i Agriculture Research Center, USA Robert L James --- Plant Disease Consulting Northwest, USA Richard A Sniezko --- United States Department of Agriculture Forest Service, USA Phil Cannon --- United States Department of Agriculture, USA Dulal Borthakur --- University of Hawai'i at Manoa, USAAcacia koa is a valuable tree species economically, ecologically and culturally in Hawai'i. A vascular wilt disease of A. koa resulting from infection by the fungal pathogen Fusarium oxysporum f. sp. koae (FOXY) causes high rates of mortality in field... -
The language issue and academic performance at a South African University
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Bertus van Rooy --- Research Focus Area: Understanding and Processing Language in Complex Settings (UPSET), Susan Coetzee-Van Rooy --- Research Focus Area: Understanding and Processing Language in Complex Settings (UPSET),Academic performance at universities in South Africa is a cause of concern. It is widely acknowledged that there are a variety of factors that contribute to poor academic performance, but language is regarded as one of the most important issues... -
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... -
On Gaussian Lipschitz spaces and the boundedness of fractional integrals and fractional derivatives on them
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Eduardo Gatto --- Department of Mathematical Sciences, USA Wilfredo O. Urbina R. --- Department of Mathematics and Actuarial Sciences, USAThe main purpose of this paper is to study the boundedness of Gaussian fractional integrals and derivatives associated to Hermite polynomial expansions on Gaussian Lipschitz spaces Lipα (γ). To get these results we introduce formulas for these operators in terms... -
Bee food: the chemistry and nutritional value of nectar, pollen and mixtures of the two
Item type: Journal Article • Journal: African Zoology • Authors: Susan W. Nicolson --- Department of Zoology and Entomology, South AfricaBees are herbivorous insects, consuming nectar and pollen throughout their life cycles. This paper is a brief review of the chemistry of these two floral resources and the implications for bee nutrition. Nectar is primarily an energy source, but in... -
Rapid assessment of montane anuran communities in the Albertine Rift: Hyperolius castaneus Ahl, 1931 as an umbrella species for conservation
Item type: Journal Article • Journal: African Zoology • Authors: Ulrich Sinsch --- Institute of Integrated Sciences, Department of Biology, Germany Eli Greenbaum --- Department of Biological Sciences, U.S.A. Chifundera Kusamba --- Laboratoire d’Herpétologie, Département de Biologie, Democratic Republic of Congo Edgar Lehr --- Institute of Integrated Sciences, Department of Biology, GermanyThe species richness of seven montane anuran communities of the Albertine Rift was assessed with visual and acoustic transects. A total of 28 anuran species were detected. The highland anuran communities at (2000–2800 m) were dominated by up to nine... -
Phylogeography of Buthus Leach, 1815 (Scorpiones: Buthidae): a multigene molecular approach reveals a further complex evolutionary history in the Maghreb
Item type: Journal Article • Journal: African Zoology • Authors: Diana Pedroso --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, Portugal Pedro Sousa --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, Portugal D. James Harris --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, Portugal Arie Van der Meijden --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, PortugalThe distribution of the scorpion genus Buthus Leach, 1815 includes southwestern Europe, North and Central Africa and extends east towards the Arabian Peninsula. Phylogenetic relationships within the genus are complex and remain partially unresolved despite several previous assessments. A set... -
A report of symbiotic Siphonostomatoida (Copepoda) infecting mobulids (Rajiformes: Mobulidae) off the KwaZulu-Natal coast, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Modjadji C. Lebepe --- Department of Biodiversity, South Africa Susan M. Dippenaar --- Department of Biodiversity, South AfricaThough South Africa is rich in aquatic species, little is known about the diversity and distribution of copepods that parasitize different hosts ranging from invertebrates to marine mammals. A total of 43 mobulids (34 Mobula kuhlii; two Mobula eregoodootenkee and... -
High population connectivity and Pleistocene range expansion in the direct-developing plough shell Bullia rhodostoma along the South African coast
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Muteveri --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa CA Matthee --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa RCK Bowie --- Museum of Vertebrate Zoology and Department of Integrative Biology, USA S von der Heyden --- Evolutionary Genomics Group, Department of Botany and Zoology, South AfricaPleistocene climatic and oceanographic changes have influenced the distribution of marine biodiversity in southern Africa. Most evidence, however, has been derived from rocky shore or demersal taxa; data on sandy shore species are limited, despite severe threats to many sandy... -
Intraguild predation and partial consumption of blue sharks Prionace glauca by Cape fur seals Arctocephalus pusillus pusillus
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Fallows --- Apex Expeditions, South Africa HP Benoît --- Fisheries and Oceans Canada, Canada N Hammerschlag --- Rosenstiel School of Marine and Atmospheric Science, USAThe top-down effects of predators on ecosystem structure and dynamics have been studied increasingly. However, the nature and consequence of trophic interactions between upper-trophic-level predators have received considerably less attention. This is especially the case in marine systems due to... -
Attitudes of women and men living with HIV and their healthcare providers towards pregnancy and abortion by HIV-positive women in Nigeria and Zambia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ann M Moore --- The Guttmacher Institute, USA Akinrinola Bankole --- The Guttmacher Institute, USA Olutoin Awolude --- Department of Obstetrics and Gynaecology, College of Medicine, Nigeria Suzette Audam --- The Guttmacher Institute, USA Adesina Oladokun --- Department of Obstetrics and Gynaecology, College of Medicine, Nigeria Isaac Adewole --- Department of Obstetrics and Gynaecology, College of Medicine, NigeriaFertility decisions among people living with HIV/AIDS (PLWHA) are complicated by disease progression, the health of their existing children and possible antiretroviral therapy (ART) use, among other factors. Using a sample of HIV-positive women (n = 353) and men (n... -
Re-imagining decision making: addressing a discrete social driver of HIV/AIDS through the lens of complexity science
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Christopher J Burman --- The Development Facilitation and Training Institute (DevFTI), South Africa Linda Moerschell --- State University of New York at Potsdam, USA Robert Mamabolo --- The Development Facilitation and Training Institute (DevFTI), South Africa Marota Aphane --- The Development Facilitation and Training Institute (DevFTI), South Africa Peter Delobelle --- School of Public Health, South AfricaThis article argues that decision making is a discrete social driver that can be associated with the HIV/AIDS epidemic in the Limpopo province in South Africa. The authors argue that complexity science can inform future research and interventions by presenting... -
Gender and HIV infection in the context of alcoholism in Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nancy Muturi --- AQ Miller School of Journalism and Mass Communications, USAWomen in sub-Saharan Africa account for more than half (58%) of people living with the HIV and it is the only continent where HIV prevalence is higher for women than for men. Studies have attributed alcoholism with the high rates... -
HIV-related stigma: implications for symptoms of anxiety and depression among Malawian women
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Charles Kamen --- Behavioral Medicine Unit, USA Jill Arganbright --- Center for AIDS Intervention Research, USA Eliza Kienitz --- PGSP-Stanford PsyD Consortium, USA Melissa Weller --- PGSP-Stanford PsyD Consortium, USA Anna Khaylis --- British Columbia Operational Stress Injury Clinic, Canada Tammy Shenkman --- PGSP-Stanford PsyD Consortium, USA Sarah Smith --- Center for AIDS Intervention Research, USA Cheryl Koopman --- Department of Psychiatry & Behavioral Sciences, USA Cheryl Gore-Felton --- Department of Psychiatry & Behavioral Sciences, USAAn estimated 11% of the adult population in Malawi, Africa, is living with HIV/AIDS. The disease has taken a toll on communities, resulting in high morbidity and mortality. Malawian women carry the burden of being caretakers for individuals infected with... -
Why Africa Journal of Management and Why Now?
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Stella M. Nkomo --- Department of Human Resource Management, South Africa David Zoogah --- Earl Graves School of Business, USA Moses Acquaah --- Department of Management, Bryan School of Business and Economics, USAIn this article, we provide the background as well as the rationale for the decision to establish the Africa Journal of Management. We begin by telling the story of the genesis of AFAM and its aspirational mission. Next, we discuss... -
Riding the Tide: Management in Africa and the Role of High-Impact Research
Item type: Journal Article • Journal: Africa Journal of Management • Authors: David B. Zoogah --- Earl Graves School of Business and Management, USA Richard B. Zoogah --- Department of Sociology and Anthropology, Ghana Faustina Dalaba-Roohi --- One to One International Consulting, GhanaThe increased interest in the potential of African countries to rise from their current states of underdevelopment is matched by concern about the lack of scientific and technical knowledge. Given the role of management in national development and the contribution... -
The Challenge of Management Scholarship in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Constant D. Beugré --- College of Business, USAIn her speech marking the opening of the second biannual meeting of the Africa Academy of Management (AFAM) in Gabarone, Bostwana, in January 2014, the Honorable Linah K. Mohohlo, Governor of the Bank of Bostwana, raised three important issues that... -
Keynote Address to the Africa Academy of Management 2nd Biennial Conference January 7, 2014: Sustainable Development in Africa Through Management Theory, Research and Practice: A Commentary
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Eileen Kwesiga --- Department of Management, USA -
Structural traits of elephant grass (Pennisetum purpureum Schum.) genotypes under rotational stocking strategies
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Carlos AM Gomide --- Embrapa Gado de Leite, Brazil Carla S Chaves --- Universidade Federal dos Vales do Jequitinhonha e Mucuri, Brazil Karina G Ribeiro --- Universidade Federal de Viçosa, Brazil Lynn E Sollenberger --- University of Florida, USA Domingos SC Paciullo --- Embrapa Gado de Leite, Brazil Tatiana P Pereira --- Universidade Federal Rural do Rio de Janeiro, Brazil Mirton JF Morenz --- Embrapa Gado de Leite, BrazilDespite the forage potential of elephant grass, controlling canopy structure during grazing has limited its use in pasture. This study was conducted to determine the effect of grazing frequency and post-grazing height on canopy structural characteristics of elephant grass genotypes... -
Modelling annual evapotranspiration in a semi-arid, African savanna: functional convergence theory, MODIS LAI and the Penman–Monteith equation
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Anthony R Palmer --- Centre for African Conservation Ecology, South Africa Craig Weideman --- Department of Environmental Science, South Africa Andiswa Finca --- Agricultural Research Council–Animal Production Institute, South Africa Colin S Everson --- Bioresources Engineering and Environmental Hydrology, South Africa Niall Hanan --- Geospatial Science Center of Excellence, USA William Ellery --- Department of Environmental Science, South AfricaAccurately measuring evapotranspiration (ET) is essential if we are to derive reasonable estimates of production and water use for semi-arid savannas. Estimates of ET are also important in defining the health of an ecosystem and the quantity of water used... -
Environmental Conservation through Ubuntu and other Emerging Perspectives
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Michael Sheridan --- Sociology/Anthropology, USA -
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 -
Exploring the bullying behaviours experienced by South African domestic workers
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yolo-loyolo Maboyana --- Department of Industrial Psychology and People Management, South Africa Lusanda Sekaja --- Department of Industrial Psychology and People Management, South AfricaThis article phenomenologically explores the nature of bullying behaviours as experienced by domestic workers in South Africa. Participants were a convenience sample of 10 black female domestic workers (age range = 27 to 53 years, work experience = 3 to... -
Psychosocial issues among children and adolescents in an integrated paediatric HIV psychology service in Botswana
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lindsay E. Mullan --- Fielding Graduate University, USA Paul C. Mullan --- Children's National Health System, USA Gabriel M. Anabwani --- Botswana-Baylor Children's Clinical Centre of Excellence, BotswanaThis study explored the psychosocial issues faced by children and adolescents with HIV in Botswana. Data on psychosocial issues were collected from 27 young children aged 5–9 years and 128 adolescents aged 10–19 years (n = 155). Data were analysed... -
Can behaviour buffer the impacts of climate change on an arid-zone bird?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Susan J Cunningham --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Rowan O Martin --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South AfricaBehavioural thermoregulation, particularly the use of cool microclimates, is one method by which organisms could avoid the worst effects of climate warming. However, retreat into cool microsites, e.g. shady vegetation or burrows, may carry important lost-opportunity costs. These could include... -
Elevated temperatures drive fine-scale patterns of habitat use in a savanna bird community
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Rowan O Martin --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Susan J Cunningham --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- ,Many animals use thermally buffered microhabitats, e.g. patches of shade within trees, to avoid temperature extremes. These ‘thermal refugia’ may mediate the impact of climate change on animals. Predicting how species and communities will respond to rising temperatures therefore requires... -
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... -
Hospitality and prosumption
Item type: Journal Article • Journal: • Authors: George Ritzer --- Department of Sociology, University of Maryland, Baltimore, USAHospitality and the hospitality industry need to be reevaluated in the era of the new prosumer and smart prosuming machines. Traditional notions of hospitality hearken back to an earlier era and ongoing changes are forcing us to reconsider them. Among those changes... -
Effects of the market factor on portfolio diversification: the case of market crashes
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Cheoljun Eom --- School of Business, Korea Jong Won Park --- College of Business Administration, Korea Yong H. Kim --- Carl H. Lindner College of Business, USA Taisei Kaizoji --- Graduate School of Arts and Sciences, JapanThis paper investigates empirically the effects of the market factor on the degree of portfolio diversification extracted from Markowitz's mean-variance (MV) model to explore an alternative method for improving the practical usefulness of the model. It controls for various properties... -
On the Hausdorff distance and some openings between Banach spaces as Borel functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: B.M. Braga --- Department of Mathematics, USAIn these notes we show that the infinite valued Hausdorff distance δH: F (X)2 → [0, 8] is Borel. Also, it is shown that the spherical opening, the geometric opening and the ball opening are Borel functions from SB2 to... -
Dynamics of predator-prey models with refuge, harvesting and dispersal
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Hare --- Department of Mathematics, USA J. Rebaza --- Department of Mathematics, USAThe dynamics of predator-prey models with different prey harvesting functions and prey refuge is studied. This study includes a three-dimensional model to account for the dispersal of prey to a habitat where it is unavailable to the predator. Besides local... -
An investigation in purchasing practices of small F&B operators
Item type: Journal Article • Journal: • Authors: Michel Altan --- Academy of Hospitality and Facility Management, NHTV Breda, The Netherlands Christine Demen-Meier --- Ecole Hôtelière de Lausanne, Le Chalet-à-Gobet, SwitzerlandThe food and beverage (F&B) purchasing function is operating in a rapidly changing environment, whereby professionalisation and efficiency become key. This paper aims to identify generic skills that are most important for small F&B operators when it comes down to purchasing and... -
The role of employee wellness programme in the hospitality industry: a review of concepts, research, and practice
Item type: Journal Article • Journal: • Authors: Tingting (Christina) Zhang --- Department of Human Sciences, Ohio State University, Columbus, Ohio, USA Jay Kandampully --- Department of Human Sciences, Ohio State University, Columbus, Ohio, USA Hye Yoon Choi --- Department of Human Sciences, Ohio State University, Columbus, Ohio, USAIn the hospitality industry, employees are critical to firm success, through their intimate interactions with customers to create memorable experiences and relationships. A nascent strategy adopted by many hospitality firms seeks to increase employee engagement and commitment through employee wellness programmes. Despite... -
Sustainable intensification of cultivated pastures using multiple herbivore species
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: James P Muir --- Texas A&M AgriLife Research, USA William D Pitman --- Louisiana State University Agricultural Center, USA Jamie L Foster --- Texas A&M AgriLife Research, USA José C Dubeux --- North Florida Research and Education Center, USADemand for animal products is growing faster than for any other agricultural product. As a result, pressure for greater output from cultivated pastures is expected to increase. Assuming cultivated pasture area will decrease with land degradation, conversion to grain crops... -
Southern African pasture science in the 21st century
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Pieter A Swanepoel --- Department of Agronomy, South Africa Matt A Sanderson --- Northern Great Plains Research Laboratory, US Department of Agriculture–Agricultural Research Service, USA Lindsay W Bell --- CSIRO Sustainable Agriculture Flagship, Australia Dean T Thomas --- CSIRO Sustainable Agriculture Flagship, Australia James E Bennett --- Department of Geography, Environment and Disaster Management and Centre for Agroecology Water and Resilience, UK -
Alfarabi's imaginative critique: overflowing materialism in Virtuous Community
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Joshua M. Hall --- Visiting Assistant Professor of Philosophy, USAThough currently marginalised in Western philosophy, tenth-century Arabic philosopher Abu Nasr Alfarabi is one of the most important thinkers of the medieval era. In fact, he was known as the ‘second teacher’ (after Aristotle) to philosophers such as Avicenna and... -
The role of community health workers in the re-engineering of primary health care in rural Eastern Cape
Item type: Journal Article • Journal: South African Family Practice • Authors: Karl le Roux --- Zithulele Hospital, South Africa Ingrid M le Roux --- Philani Maternal, South Africa Nokwanele Mbewu --- Philani Maternal, South Africa Emily Davis --- Semel Institute and the Department of Psychiatry, USABackground: Primary Health Care in South Africa is being re-engineered to create a model of integrated care across different levels of the health care system. From hospitals to clinics, in the community and in the home, health care will focus... -
Communicative challenges of interpreting in cross-border languages in South African courtrooms
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Sam Erevbenagie Usadolo --- Department of Communication, South Africa Ernst Kotzé --- Department of Communication, South AfricaThis article presents some of the challenges encountered by court interpreters who interpret in cross-border languages, i.e. languages spoken across the borders of two neighbouring countries. Data used in the article were collected from participants by adopting a qualitative approach,... -
Socio-ecological influences of attitudes toward disability among Kenyan undergraduate students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: George I. Mamboleo --- Department of Counseling, Rehabilitation & Counseling Psychology, USA Abdoulaye Diallo --- Department of Rehabilitation, USA Robinson M. Ocharo --- Sociology Department, Kenya Spalatin N. Oire --- Department of Counseling, Higher Education, & Special Education, USA Charlene M. Kampfe --- Department of Disability & Psychoeducational Studies, USAThis study examined personal and contextual variables as predictors of attitudes toward disability at a Kenyan higher education setting. Participants were a convenience sample of 309 undergraduate students at a Kenyan university enrolled in Sociology, Social Work, Psychology, Political Science,... -
Reports of Kroyeria species collected from South African waters with notes on the host–parasite associations
Item type: Journal Article • Journal: African Zoology • Authors: Peter J Mokumo --- Department of Biodiversity, University of Limpopo, South Africa Susan M Dippenaar --- Department of Biodiversity, University of Limpopo, South AfricaThere are 21 species in the genus Kroyeria of which nine have been reported from hosts caught off South Africa. Host–parasite associations were reported for K. dispar, K. papillipes and K. sphyrnae. Kroyeria specimens were collected from the gill filaments... -
Household Enterprise in Base-of-the-Pyramid Markets: the Influence of Institutions and Family Embeddedness
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Justin W. Webb --- University of North Carolina at Charlotte, USA Christopher G. Pryor --- High Point University, USA Franz W. Kellermanns --- University of North Carolina at Charlotte, USANearly half of the population in Africa lives on less than $1.25 per day in what scholars refer to as base-of-the-pyramid (BOP) markets. More broadly, BOP markets account for two billion of the world's population living in extreme poverty. Household... -
The Relationship between Competitive Strategy and Firm Performance in Micro and Small Businesses in Ghana: The Moderating Role of Managerial and Marketing Capabilities
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Moses Acquaah --- Bryan School of Business and Economics, USA Ahmed Agyapong --- KNUST Business School, GhanaThis study investigates the role of managerial and marketing capabilities in moderating the relationship between competitive strategy and firm performance using data from 581 micro and small businesses (MSBs) in Ghana. Using a hierarchical multiple regression analysis the findings indicate... -
Mergers and Acquisitions in Africa: A Review and an Emerging Research Agenda
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Kimberly M. Ellis --- Florida Atlantic University, Management Programs, USA Bruce T. Lamont --- Florida State University, Entrepreneurship, Strategy, and Information Systems, USA Taco H. Reus --- Erasmus University, Strategic Management and Entrepreneurship, the Netherlands Leon Faifman --- Florida Atlantic University, Management Programs, USAThis article identifies and reviews existing merger and acquisition (M&A) studies focused on African markets. In this review, the factors mentioned directly or alluded to in the existing studies that distinguish African countries as target nations from other countries traditionally... -
Parental mediation of adolescent media use and demographic factors as predictors of Kenyan high school students’ exposure to sexual content in television
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kyalo wa Ngula --- Department of Mass Communication, Hellen K. Mberia --- Department of Social Sciences and Humanities, Ann Neville Miller --- Nicholson School of Communication, USAResearch in Western nations suggests that parents’ involvement in their children's media use can make a difference in how adolescents select, process and respond to sexual television messages. Little or no published research has investigated this issue in sub-Saharan Africa,... -
Technological capacity and other determinants of economic performance in African countries: Panel data evidence
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Albert A. Okunade --- Department of Economics, USAThe determinants of aggregate economic performance in African countries are economic, institutional and political. To date, rarely has research included a specific conceptual measure of technological index among the core determinants. Consequently, for the first time in the economic development... -
Hooking mortality of scalloped hammerhead Sphyrna lewini and great hammerhead Sphyrna mokarran sharks caught on bottom longlines
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SJB Gulak --- Riverside Technology Inc., National Marine Fisheries Service, Panama City Laboratory, USA AJ de Ron Santiago --- Riverside Technology Inc., National Marine Fisheries Service, Panama City Laboratory, USA JK Carlson --- National Marine Fisheries Service, Panama City Laboratory, USAThe scalloped hammerhead Sphyrna lewini and the great hammerhead S. mokarran are typically caught as bycatch in a variety of fisheries and are listed as globally Endangered by the International Union for the Conservation of Nature. Due to very high... -
Redescription of Hydrolagus africanus (Gilchrist, 1922) (Chimaeriformes: Chimaeridae), with a review of southern African chimaeroids and a key to their identification
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: KA Walovich --- Pacific Shark Research Center, USA DA Ebert --- Pacific Shark Research Center, USA DJ Long --- Department of Ichthyology, USA DA Didier --- Department of Biological Sciences, USAHydrolagus africanus (Gilchrist, 1922) is a little‑known chimaeroid species, originally described from the KwaZulu‑ Natal coast of South Africa, with a range spanning the western Indian Ocean from Kenya, south to Mozambique and South Africa, and extending into the south‑eastern... -
The evolution of chondrichthyan research through a metadata analysis of dedicated international conferences between 1991 and 2014
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Huveneers --- School of Biological Sciences, Flinders University, Australia DA Ebert --- Pacific Shark Research Center, Moss Landing Marine Laboratories, USA SFJ Dudley --- Branch: Fisheries Management, Department of Agriculture, South AfricaScience is continually evolving, with recent developments in some fields, such as conservation biology, leading to shifts in priorities and needs. Recent international conferences focused on chondrichthyan research provide an opportunity to assess how the research environment of chondrichthyan science... -
Beyond Jaws: rediscovering the ‘lost sharks’ of southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DA Ebert --- Pacific Shark Research Center, USA KE van Hees --- Pacific Shark Research Center, USASouthern Africa has one of the richest and most diverse chondrichthyan faunas in the world, comprising all 13 orders, 49 families, 111 genera and approximately 204 species. This represents nearly 20% of all known chondrichthyans, and includes 117 shark, 79... -
Advances in Shark Research
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DA Ebert --- Pacific Shark Research Center, Moss Landing Marine Laboratories, USA C Huveneers --- School of Biological Sciences, Australia SFJ Dudley --- Branch: Fisheries management, South Africa -
Gender perspectives in care provision and care receipt among older people infected and affected by HIV in Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joseph O Mugisha --- Medical Research Council/Uganda Virus Research Institute (MRC/UVRI), Uganda Research Unit on AIDS, E Schatz --- Department of Health Sciences, USA J Seeley --- Medical Research Council/Uganda Virus Research Institute (MRC/UVRI), Uganda Research Unit on AIDS, P Kowal --- World Health Organization Study on Global AGEing and Adult Health, SwitzerlandThe objective of this study was to examine gender roles in the provision and receipt of care among older Ugandans. Survey data on care work were collected in 2009–2010 from 510 older people infected or affected by HIV/AIDS, at one... -
Antibiotic use in Namibia: prescriber practices for common community infections
Item type: Journal Article • Journal: South African Family Practice • Authors: Dawn D Pereko --- Medicine Usage in South Africa, Faculty of Health Sciences, School of Pharmacy, South Africa Martie S Lubbe --- Medicine Usage in South Africa, Faculty of Health Sciences, School of Pharmacy, South Africa Sabiha Y Essack --- School of Health Sciences, South AfricaBackground: Despite the threat of resistance, the use of antibiotics globally is high and continues to increase. Much of this use is attributed to overprescribing by physicians. The objective of this study was to assess doctors’ management of common community-acquired... -
Spatial pattern and determinants of unmet need of family planning in Nigeria
Item type: Journal Article • Journal: South African Family Practice • Authors: Oluwayemisi Oyeronke Alaba --- Department of Statistics, Nigeria JO Olaomi --- Department of Statistics, South Africa Olusanya E. Olubusoye --- Department of Statistics, NigeriaBackground: Nigeria still grapples with low family planning (FP) use and a high fertility rate. This study explores the factors associated with the unmet need for FP and the coldspots of unmet need for FP in Nigeria. -
Examining empathy and its association with aggression in young Western Cape children
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Susan Malcolm-Smith --- Applied Cognitive Science and Experimental Neuropsychology Team, Department of Psychology, South Africa Danielle Woolley --- Department of Psychology, South Africa Catherine L Ward --- Safety and Violence Initiative, Department of Psychology, South AfricaObjective: In a context of disturbing rates of violent crime, this pilot study initiated examination of the association between empathy and aggressive behaviour in young Western Cape children. Establishing which empathy measures are appropriate for our context was a primary... -
Agronomic performance of new cream to yellow-orange sweetpotato cultivars in diverse environments across South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sunette M Laurie --- Agricultural Research Council–Roodeplaat Vegetable and Ornamental Plant Institute (ARC-VOPI), South Africa Sidwell S Tjale --- Agricultural Research Council–Roodeplaat Vegetable and Ornamental Plant Institute (ARC-VOPI), South Africa Andre A van den Berg --- Agricultural Research Council–Roodeplaat Vegetable and Ornamental Plant Institute (ARC-VOPI), South Africa Musa M Mtileni --- Agricultural Research Council–Roodeplaat Vegetable and Ornamental Plant Institute (ARC-VOPI), South Africa Maryke T Labuschagne --- Department of Plant Sciences, South AfricaSweetpotato is grown in diverse environments of South Africa by both commercial and subsistence farmers. The aim of the present study was to assess the stability, agronomic performance and palatability of new ARC cultivars bred for the informal market, and... -
Visual obstruction as a method to quantify herbaceous biomass in southern African semi-arid savannas
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Dave Joubert --- Polytechnic of Namibia, Namibia Larkin A Powell --- School of Natural Resources, USA Walter H Schacht --- Department of Agronomy and Horticulture, USABiomass of aboveground vegetation is a useful descriptor for studies of grazing, fire and wildlife habitat use in grassland systems. The traditional method to estimate biomass, hand-clipping, is time intensive and other indices of biomass have been used successfully. In... -
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... -
Imfobe: self-knowledge and the reach for ethics among former, young, anti-apartheid activists
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Pamela Reynolds --- Department of Anthropology, USAThe paper explores the reach for ethics among young people engaged in opposition to the apartheid state in the 1980s. Structured around the Xhosa concept imfobe, variously translated as morality, virtue, goodness, grace, the paper seeks to locate young peoples'... -
Grief-stricken: Zimbabwean children in everyday extremity and the ethics of research
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Ross Parsons --- Dept. Anthropology, USAThe essay approaches ethics and research through a description of the beginnings of a study of children's lives under extreme adversity in the Manicaland province of contemporary Zimbabwe. An encounter with an orphaned child is described, highlighting the presence of... -
Bounds on the Global Domination Number
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Wyatt J. Desormeaux --- Department of Mathematics, South Africa Philip E. Gibson --- Department of Mathematics and Statistics, USA Teresa W. Haynes --- Department of Mathematics, South AfricaA set S of vertices in a graph G is a global dominating set of G if S simultaneously dominates both G and its complement Ḡ. The minimum cardinality of a global dominating set of G is the global domination... -
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... -
Social models of HIV risk among young adults in Lesotho
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nicola L. Bulled --- Center for Global Health, USAExtensive research over the past 30 years has revealed that individual and social determinants impact HIV risk. Even so, prevention efforts focus primarily on individual behaviour change, with little recognition of the dynamic interplay of individual and social environment factors... -
Reckoning HIV/AIDS care: A longitudinal study of community home-based caregivers and clients in Swaziland
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Robin Root --- Department of Sociology & Anthropology, USA Arnau Van Wyngaard --- Department of Science of Religion and Missiology, South Africa Alan Whiteside --- CIGI Chair in Global Health Policy, CanadaThe article is a descriptive case study of a community home-based care (CHBC) organisation in Swaziland that depicts the convergence of CHBC expansion with substantially improved health outcomes. Comprised of 993 care supporters who tend to 3 839 clients in... -
Kelp gulls prey on the eyes of juvenile Cape fur seals in Namibia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AJ Gallagher --- Leonard and Jayne Abess Center for Ecosystem Science and Policy, USA ER Staaterman --- Rosenstiel School of Marine and Atmospheric Sciences, USA N Dreyer --- Sandwich Harbour 4×4, NamibiaThe kelp gull Larus dominicanus is an abundant and highly successful avian predator and scavenger that breeds along the coastline in the Southern Hemisphere, ranging from Antarctica to the tropics. On account of its dietary breadth, wide-ranging foraging strategies, and... -
The effects of stock size and environmental variability on Cape hake recruitment in Namibia: an unsolved puzzle (a comment on Kainge et al. 2013)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J-P Roux --- Lüderitz Marine Research, Namibia MR Wilhelm --- Marine Science Institute, USAMeasuring and forecasting recruitment are central to the understanding and management of fish stocks. Kainge et al. (2013) studied the effect of spawning stock size and environmental fluctuations on the recruitment levels of the Cape hake Merluccius capensis in Namibia... -
Psychobiography in psychology: Past, present, and future
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joseph G. Ponterotto --- Division of Psychological and Educational Services, USAThe present article reviews the history and emerging trends in the field of psychobiography. Five historical periods are highlighted: hagiography and pre-19th century study of lives; Freud and applied psychoanalysis; psychodynamic extensions and personology; modern multi-theoretical models; and psychobiography as... -
The New Politics of Afrikaans
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Andrew Nash --- Monthly Review Press, USAThe “new politics of Afrikaans” is primarily concerned with defending Afrikaans language and culture in the new South Africa. In contrast to Afrikaner nationalism, it seeks to ensure a vital and viable future for Afrikaans, which does not depend on... -
Analytical construction of peaked solutions for the nonlinear evolution of an electromagnetic pulse propagating through a plasma
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mathew Baxter --- Department of Mathematics, USA Robert A. van Gorder --- Department of Mathematics, USA Kuppalapalle Vajravelu --- Department of Mathematics, USAWe obtain analytical solutions, by way of the homotopy analysis method, to a nonlinear wave equation describing the nonlinear evolution of a vector potential of an electromagnetic pulse propagating in an arbitrary pair plasma with temperature asymmetry. As the method... -
Tutte polynomial of some multigraphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Julian A. Allagan --- Department of Mathematics, USA Eunice Mphako-Banda --- University of the Witwatersrand, RSAUsing two related parameters, ζ and γ, we extend the recursion for com- puting the Tutte polynomial of any graph to the computation of the Tutte polynomial of any multigraph. With this recursion, we found explicit formulae for several fami-... -
The comparative in vitro activities of three quinolones against clinical Streptococcus pneumoniae isolates
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: G J J Moolman --- Lancet Laboratories, South Africa H Kuun --- Lancet Laboratories, South Africa C Heney --- Lancet Laboratories, South Africa J J Schentag --- School of Pharmacy, University of Buffalo, USA -
Respiratory syncytial virus infection and congenital heart disease
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Philip Zachariah --- Department of Pediatrics, Section: Infectious Diseases, USA Eric Af Simoes --- Department of Pediatrics, Section: Infectious Diseases, USAThe association of congenital heart disease with severe respiratory syncytial virus (RSV) lower respiratory tract infection is examined in this review. Current perspectives on prophylaxis for RSV in this patient subgroup are also discussed. -
A 31-year-old diamond miner with chronic and relapsing skin ulcers. What is the diagnosis?
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: N Beylis --- Natalie Beylis, Mycobacteriology Referral Laboratory, National Health Laboratory Service, Johannesburg., S Glassman --- Department of Medicine, H Koornhof --- National TB Reference Centre, National Health Laboratory Service, Johannesburg., W M Meyers --- Armed Forces Institute of Pathology, USA. F Portaels --- Institute of Tropical Medicine, L Blumberg --- Epidemiology and Surveillance Division, National Institute for Communicable Diseases, Johannesburg.,A previously healthy 31-year-old man presented in September 2007 to his doctor with a recurrence of painless ulcers on his left leg. He had traveled into Angola over 10 years for work involving diamond alluvial mining. He stayed mainly in... -
Spatial epidemiology risk assessment for rehabilitated former asbestos mining areas in Limpopo Province, South Africa, using remote sensing and conventional analytical methods
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: B M Petja --- Department of Geography and Environmental Studies, South Africa G T Tengbeh --- Department of Geography and Environmental Studies, South Africa Y A Twumasi --- Department of Advanced Technologies, USA M Atanasova --- Mineralogy Laboratory, Council for Geoscience, South AfricaThe aim of this study was to conduct a comparative analysis using remote sensing and conventional sample analysis to assess asbestos pollution in rehabilitated former asbestos mining areas. The study focused on the Mafefe and Mathabatha areas of Limpopo Province,... -
Rotavirus in South Africa: From discovery to vaccine introduction
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: A D Steele --- Vaccines and Immunization, PATH, USA R Glass --- Fogarty International Center, National Institutes of Health, USARotavirus was frst detected by electron microscopy in young children with diarrhoea in South Africa in 1976, and 25 years later rotavirus vaccine was introduced into the routine childhood immunisation schedule in the country. Prof Barry Schoub played a role... -
Genital herpes and HIV infection: Can we still exploit the intimate relationship?
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: R C Ballard --- Center for Global Health, Centers for Disease Control and Prevention, USASouth Africa is suffering the most severe HIV epidemic on earth. Prior to emergence of HIV/AIDS, conventional sexually transmitted infections (STIs) were endemic in many underprivileged communities as a result of many social factors. Since conventional STIs may act as... -
Evidence that prevention of carriage by pneumococcal capsular vaccines may be the mechanism of protection from pneumococcal pneumonia
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: K P Klugman --- Rollins School of Public Health, Emory University, USA S W Hayden Smith --- former Department of Medical Microbiology, South African Institute for Medical Research, H J Koornhof --- National Tuberculosis Reference Laboratory, National Institute for Communicable Diseases and Division of Virology and Communicable Diseases Surveillance, University of the Witwatersrand,During the 1970s, a hexavalent pneumococcal polysaccharide vaccine (PPV-6) and a 13-valent (PPV-13) trial involving ˜ 12,000 Witwatersrand gold miners showed effcacy against pneumonia caused by vaccine types (VTs). The effect of PPV-6 and PPV-13 on nasopharyngeal carriage of pneumococcal... -
Gender differences in characteristics, occupational exposure, and infection control practices among dental professionals in Edo State, Nigeria
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Nosayaba Osazuwa-Peters --- Public Health Program, George Warren Brown School of Social Work, Washington University, USA Clement Chinedu Azodo --- Department of Periodontics, Nigeria Adebola Oluyemisi Ehizele --- Department of Periodontics, Nigeria Ozoemene Ndubuisi Obuekwe --- Department of Oral and Maxillofacial Surgery, NigeriaThe objective of this study was to assess the gender differences in the characteristics of dental professionals in Edo State, Nigeria, their occupational exposure to percutaneous injuries, and their infection control practices. A cross-sectional survey was conducted among dental professionals... -
GSTM1, GSTP1 and NQO1 polymorphisms and susceptibility to asthma among South African children
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Poovendhree Reddy --- Department of Community Health Studies, Durban Rajen N Naidoo --- Department of Occupational and Environmental Health, Thomas G Robins --- Department of Environmental Health Sciences, USA Graciela Mentz --- Department of Environmental Health Sciences, USA Huiling Li --- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, USA Stephanie J London --- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, USAGluthathione-S-transferase (GSTM1 and GSTP1) and nicotinamide quinone oxidoreductase (NQO1) genes play an important role in cellular protection against oxidative stress, which has been linked to asthma pathogenesis. We investigated whether common, functional polymorphisms in GSTM1, GSTP1, and NQO1 infuence susceptibility... -
Outcome of cholera admissions in Bauchi, Nigeria
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: Philip Kolo --- Department of Medicine, Nigeria Yusaf Jibrin --- Department of Medicine, Nigeria Emmanuel Sanya --- Department of Medicine, Nigeria Muhammad Alkali --- Department of Medicine, Nigeria Alakija Salami --- Department of Medicine, Nigeria Ayodele Omotoso --- Department of Medicine, Nigeria Abdulrahman Tahir --- Department of Medicine, NigeriaIn 2007, the World Health Organization Regional Committee for Africa officially noted the resurgence of cholera in the Africa subregion, and called for strengthening of policies on water supply and sanitation. We study the mortality profile of patients admitted for... -
The benefits of using a community-engaged research approach to promote a healthy lifestyle in three Nigerian urban slums
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: O P Akinwale --- Nigerian Institute of Medical Research, Nigeria J O Oyefara --- Faculty of Social Sciences, University of Lagos, Nigeria P E Adejoh --- Faculty of Social Sciences, University of Lagos, Nigeria A A Adeneye --- Faculty of Basic Medical Sciences, Lagos State University College of Medicine, Nigeria A K Adeneye --- Nigerian Institute of Medical Research, Nigeria Z A Musa --- Nigerian Institute of Medical Research, Nigeria K S Oyedeji --- Nigerian Institute of Medical Research, Nigeria M A Sulyman --- Nigerian Institute of Medical Research, NigeriaSlums are a wide range of low-income settlements with poor living conditions. The quality of the dwellings varies from simple shacks to permanent structures, while access to water, electricity, sanitation and other basic services and infrastructure tends to be limited... -
Note on Sleep in Captive Giraffes (Giraffa Camelopardalis Reticulata)
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: M.B. Kristal --- Department of Psychology, State University of New York at Buffalo, USA M. Noonan --- Department of Psychology, State University of New York at Buffalo, USA -
Early Postnatal Development, Parental Care and Interaction in the Banded Mongoose Mungos Mungo
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: Susan Viljoen --- Mammal Research Institute, University of Pretoria, South Africa -
Energetics and Water Relations of Namib Desert Rodents
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: P.C. Withers --- Present address: Biology Department, USA G.N. Louw --- Zoology Department, J. Henschel --- Zoology Department,All the Namib rodents investigated, except Petromus, can survive without water on a diet of air-dried seed. Water turnover rates of these animals in the laboratory confirmed their low water requirements. Field water turnover rates were remarkably low, probably because... -
Metabolic rate and body temperature of an African sunbird, Nectarinia Chalybea: daily rhythm and the effect of ambient temperature
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: Belle Leon --- Department of Physiology, South Africa W. Susan Nicolson --- Department of Zoology, South AfricaThe oxygen consumption (VO2) of the lesser double-collared sunbird, Nectarinia chalybea. was measured at ambient temperatures (Ta) from 7 to 35°C. The diel variation in body temperature (Tb) and wet thermal conductance (C) was also determined. The sunbirds (mean mass... -
The larynx and trachea of the barking gecko, Ptenopus garrulus maculatus (Reptilia: Gekkonidae) and their relation to vocalization
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: David R. Rittenhouse --- Vertebrate Morphology Research Group,, Anthony P. Russell --- Vertebrate Morphology Research Group,, Aaron M. Bauer --- Department of Biology, Villa nova University, USASince its discovery by science almost 150 years ago, Ptenopus garrulus has been recognized as a highly vocal gekkonid. While this ability has been the subject of ecological and ethological investigations, and while its call has been sonographically analysed, the... -
Papers from the International Conference on Comparative Physiology and Biochemistry, Kruger National Park, South Africa, 31 August to 5 September 1997 : Introduction
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: M.S. Gordon --- Department of Biology, USA W.J. Van Aardt --- Department of Zoology, RSA A. Vosloo --- Department of Zoology, RSA -
Description of a papillate tactile organ in the Typhlopidae
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: Bruce A. Young --- Department of Biology, USA Van Wallach --- Center for Vertebrate Studies,In a unique specimen of Rhinotyphlops, the rostrum supports approximately 250 elongate, flexible papillae. Each papilla consists of a tubular shaft and an expanded hair-like bulb weakly embedded in the epidermis. Immediately deep to the base of each papilla is... -
Seasonal and daily variation in blood and urine concentrations of free-ranging Angolan free-tailed bats (Mops condylurus) in hot roosts in southern Africa
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: Rochelle Buffenstein --- Department of Physiology, South Africa Shane K. Maloney --- Department of Biology, USA Gary N. Bronner --- School of Biological Science, The University of New South Wales, AustraliaUrine and plasma concentrations and haematocrits were measured in free-ranging Angolan free-tailed bats (Mops condylurus) inhabiting thermally-challenging roosts in the Komatipoort region of South Africa. Samples were collected in both autumn and summer, from bats caught emerging from roosts before... -
Praomys degraaffi, a new species of Muridae (Mammalia) from central Africa
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: Erik van der Straeten --- Departement Biologie, België Julian C. Kerbis Peterhans --- University College, Roosevelt University, USAA new Praomys species from Burundi, Rwanda and Uganda, Praomys degraaffi n. sp., is described in the P. jacksoni species-complex. It occurs at high elevations in montane forests of the Albertine Rift. The new species is compared with P. jacksoni... -
Kidney structure of a euryhaline mammal, the Cape clawless otter (Aonyx capensis)
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: Carol A. Beuchat --- Department of Physiology, USAThe Cape clawless otter (Aonyx capensis) is one of the few species of mammals that occur in both freshwater and marine habitats, and it therefore must be able to tolerate the high rates of water flux typical of aquatic animals... -
The heart of the cheetah: Biography, identity and social change in north-western Namibia
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Joëlle Chesselet --- Doxa Productions, Susan Levine --- Department of Social Anthropology, Cornelius Mukuena TjiumaThis ethnographic collaboration between filmmaker, anthropologist and translator aims to make visible the often unacknowledged life-story of the translator whose particular positioning as ‘cultural broker’ between ethnographers and indigenous communities is unmapped. By micro-mapping the interaction between place and personhood,... -
Kroyeria deetsi n.sp. (Kroyeriidae: Siphonostomatoida), a parasitic copepod infecting gills of spinner sharks, Carcharhinus brevipinna (Müller & Henle, 1839), in the Indian Ocean
Item type: Journal Article • Journal: African Zoology • Authors: Susan M. Dippenaar --- Department of ZoologyandBiology, South Africa George W. Benz --- Tennessee Aquarium and Southeast Aquatic Research Institute, U.S.A. Pieter A.S. Olivier --- Department of ZoologyandBiology, South AfricaKroyeria deetsi n.sp. (Kroyeriidae: Siphonostomatoida) is described from both sexes collected from the gills of spinner sharks, Carcharhinus brevipinna (Müller & Henle, 1839), captured in the Indian Ocean off the coast of South Africa. Kroyeriadeetsi n.sp. can easily be distinguished... -
Relative merits of using purified proteins and natural foods in studies of wildlife nutrition: the nitrogen requirements of a rodent pollinator
Item type: Journal Article • Journal: African Zoology • Authors: Ian G. Van Tets --- Department of Zoology, South Africa Ken Hutchings --- Department of Zoology, South Africa Susan Nicolson --- Department of Zoology, South AfricaAethomys namaquensis is a 60 g murid rodent that is an important pollinator of several Protea species in South Africa. We compared the nitrogen requirements of this species on two different protein sources: pollen and casein. Pollen is an important... -
Consumer patronage and willingness-to-pay at different levels of restaurant attributes: A study from Kenya
Item type: Journal Article • Journal: • Authors: David Njite --- The Lester E. Kabacoff School of Hotel, Restaurant and Tourism Administration, University of New Orleans, New Orleans, Louisiana, USA Joyce Njoroge --- School of Accounting, Drake University, Des Moines, Iowa, USA Haragopal Parsa --- School of Accounting, Drake University, Des Moines, Iowa, USA Rahul Parsa --- Department of Supply Chain and Information Systems, College of Business, Iowa State University, Ames, Iowa, USA Jean-Pierre van der Rest --- Department of Business Studies, Institute of Tax Law and Economics, Leiden Law School, Leiden University, Leiden, The NetherlandsThis study investigates the effect of three key restaurant attributes – food quality, service quality and ambiance – on consumers’ (i) willingness-to-pay (WTP) and (ii) intentions to patronage (ITP) for limited service and upscale restaurants in Kenya. A full-profile 2 (types of... -
Digestibility and Feed Intake Investigations at Different Stages of Growth of Brachiaria Ruziziensis, Chloris Cayanaand Setaria SphacelataUsing Corriedale Wether Sheep Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: S. Y. Soneji --- Makerere University, Uganda R. S. Musangi --- University of Nairobi, Kenya F. J. Olsen --- Makerere University, Uganda -
Digestibility and Feed Intake Investigations at Different Stages of Growth of Brachiaria Ruziziensis, Chloris Gayanaand Setaria SphacelataUsing Corriedale Wether Sheep Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: S. V. Soneji --- University of Nairobi, Kenya R. S. Musangi --- University of Nairobi, Kenya F. J. Olsen [AN0001] -
Aerial Spray Trial on Kenaf Insect Pests at Kahe, Tanzania
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: M. E. A. Materu --- Tropical Pesticides Research Institute, Tanzania J. M. Kahumbura --- Tropical Pesticides Research Institute, Tanzania M. M. Lwanga --- Tropical Pesticides Research Institute, Tanzania W. W. Luhanga --- Tropical Pesticides Research Institute, Tanzania E. N. Shikony --- Tropical Pesticides Research Institute, Tanzania I. M. Lusasi --- Tropical Pesticides Research Institute, Tanzania R. A. Makusi --- Tropical Pesticides Research Institute, Tanzania J. Francis --- Tropical Pesticides Research Institute, Tanzania -
Photosynthetic Response of Tomatoes to Fruit Removal, Stem Girdling and Deflowering.
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: J.O. Nyabundi --- Land, Air, and Water Resources Department, USA. T.C. Hsiao --- Land, Air, and Water Resources Department, USA. -
Effect of Green Manure and Maize Crop Residue on Phosphate Availability and Fixation in Kenyan Soils
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: A.A.O. Musandu --- Agronomy Department, Kenya -
Importance of Plant Colour and Modifier Genes in Grain Mould Resistance in Sorghum
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: J.P. Esele --- Department of Plant Pathology and Microbiology, USA R.A. Frederiksen --- Department of Plant Pathology and Microbiology, USA F.R. Miller --- Department of Plant Pathology and Microbiology, USA -
The Influence of Supplementary Feeding and Grazing Restriction on the Voluntary Intake of Roughages and Liveweight Gain by Beef Cattle
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: R. S. Musangi --- Faculty of Agriculture, -
Feeding Groundnut (Arachis Hypogaea L.)Haulms to Dairy Cows in Uganda Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Richard S. Musangi --- Faculty of Agriculture, Uganda S. V. Soneji --- Faculty of Agriculture, Uganda -
The Utilization of Improved Pastures in Uganda: I. Beef Steers
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: R. S. Musangi --- Makerere University College, Uganda -
Application of Nitrogen and Irrigation to Pasture to Enhance Cattle Production During the Dry Seasons in Uganda
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: E. R. Tiharuhondi --- Faculty of Agriculture, Uganda F. J. Olsen --- Faculty of Agriculture, Uganda R. S. Musangi --- Faculty of Agriculture, Uganda -
Toxicity of 40 Per Cent ULV Gardona to Glossina Pallidipes Aust.
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: C. S. Tarimo --- Tropical Pesticides Research Institute, Tanzania J. M. Kahumbura --- Tropical Pesticides Research Institute, Tanzania J. Francis --- Tropical Pesticides Research Institute, Tanzania I. M. Lusasi --- Tropical Pesticides Research Institute, Tanzania E. N. Shikony --- Tropical Pesticides Research Institute, Tanzania D. N. Maeda --- Tropical Pesticides Research Institute, Tanzania H. Kissio --- Tropical Pesticides Research Institute, Tanzania -
Manure and Fertiliser Requirements of Potatoes on Acid Soils
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Susan M. Mugambi --- Coffee Research Station, Kenya -
A Case of Septicaemic Salmonellosis in a Colony of Guinea Pigs (Cavia Porcellus) in Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: H.O. Wesonga --- Kenya Agricultural Research Institute, Kenya Evalyn M. Wakhusama --- Kenya Agricultural Research Institute, Kenya S. W. Wanyangu --- Kenya Agricultural Research Institute, Kenya -
Examining the evidence for ecologically sustainable ostrich breeding practices on natural veld in the Little Karoo, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Anita Wheeler --- Department of Botany, South Africa Andrew T Knight --- Department of Life Sciences, UK Susanne Vetter --- Department of Botany, South AfricaLand degradation in the Little Karoo is extensive. Overstocking of breeding ostriches on natural veld has been among the main causes of this. The National Department of Agriculture has set a general stocking rate of 60 ha LSU−1 as a... -
The influence of family characteristics on glycaemic control among adult patients with type 2 diabetes mellitus attending the general outpatient clinic, National Hospital, Abuja, Nigeria
Item type: Journal Article • Journal: South African Family Practice • Authors: Bethrand Brian Odume --- Department of Family Medicine, Nigeria Onyebuchi Stephanie Ofoegbu --- Department of Family Medicine, Nigeria Elias Chike Aniwada --- Department of Community Medicine, Nigeria Emeka Franklin Okechukwu --- United States Agency for International Development, USAID, NigeriaBackground: There is an increasing epidemic of diabetes worldwide with many patients not achieving set treatment targets. Family interventions in diabetes patient management, a proven adjunct, have not been fully integrated to patient care. -
For Cosmetics Manufacturing Firms in the EAC “Localizing” is the Key to Regional Relevance
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Richard Musani --- Movit Products Ltd, Uganda -
Regional Integration: Review of the Management Literature and Implications for Theory, Policy, and Practice
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Moses N. Kiggundu --- Sprott School of Business, Carleton University, Canada Kaitlyn DeGhetto --- Department of Management, College of Business Administration, USARegional integration is increasingly occurring in all corners of the world, and both domestic and multinational firms are facing the challenges and opportunities that accompany integration. In this article, we undertake a review of regional integration management literature and provide... -
A Profile of the East African Community
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Frederick Onyango Ogola --- Strathmore University Business School, Kenya George N. Njenga --- Strathmore University Business School, Kenya Peter C. Mhando --- The Pennsylvania State University, USA Moses N. Kiggundu --- Carleton University Sprott School of Business, CanadaRegional integration in East Africa dates back more than a hundred years. This article provides a general synopsis of the East African Community (EAC) and traces the evolution of regional integration in Eastern Africa from colonial times to the present... -
Institutional Factors Affecting Expansion within the East African Community: An Analysis of Managers’ Personal Stories
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Trey Sutton --- Robins School of Business, USA Jeremy C. Short --- Michael F. Price College of Business, USA Aaron F. McKenny --- College of Business Administration, USA Rebecca Namatovu --- Makerere University Business School, UgandaThis study investigates the roles of the regulative, normative, and cognitive institutional pillars as perceived obstacles and facilitators of internationalization within an integrated region. Integrated regions involve efforts to create institutional similarities among member nations and encourage intra-regional trade. These... -
Phenomenology Without Correlationism: Husserl's Hyletic Material
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Patrick Whitehead --- Faculty of Social Science, Darton State College, USAThe thrust of the argument presented in this paper is that phenomenological ontology survives the criticism of “correlationism” as advanced by speculative realism, a movement that has evolved in continental philosophy over the past decade. Correlationism is the position, allegedly... -
Decolonisation and its discontents: Thoughts on the postcolonial African moral self
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Chielozona Eze --- English Department, USADecades after the end of colonialism, Africa seems well positioned to evaluate the successes or failures of Africa as a continent of liberated people. Nearly all analyses of African liberation movements have rightly highlighted the glories of decolonisation; very few... -
Genetic Structure and Population Diversity of Mummy Berry (Monilinia) Collections from the United States of America and Canada
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: L.A. Wasilwa --- University Philip Marucci Blueberry Cranberry Research Centre, USA P.V. Oudemans --- University Philip Marucci Blueberry Cranberry Research Centre, USA J.S. Lehman --- University Philip Marucci Blueberry Cranberry Research Centre, USA -
Making meaning in the time of AIDS: longitudinal narratives from the Malawi Journals Project
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Amy Kaler --- Department of Sociology and School of Public Health, Canada Susan Cotts Watkins --- California Center for Population Research, USA Nicole Angotti --- Department of Sociology and Center on Health, Risk and Society, USAThe Malawi Journals Project is one of the longest-running observational field studies in rural sub-Saharan Africa, ongoing since 1999. The journals provide real-time accounts of the unfolding epidemic, from the days when AIDS was considered by rural Malawians to be... -
The relationship between collective action and serious illness in western Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jane K Njuguna --- Save The Children, USA Andrew M Muriuki --- Save The Children, USABy 2012 HIV had infected about 1.6 million Kenyans and an estimated 58 000 had died due to HIV/AIDS. HIV/AIDS rates in western Kenya are disproportionately high compared to the rate in Kenya as a whole. This study aimed to... -
Vowel length (in)sensitivity in Luyia morphophonology
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Kristopher J Ebarb --- Department of English, USA Michael R Marlo --- Department of English, USAThis paper provides an original description and analysis of processes in the morphophonology of several Luyia languages of western Kenya, focusing on the differential behaviour of long vowels across and within languages. We discuss patterns of allomorphy of the perfective... -
“Wine you get every day, but a child you can't replace”: The perceived impact of parental drinking on child outcomes in a South African township
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Karmel W Choi --- Duke University, USA Melissa H Watt --- Duke University, USA Donald Skinner --- Stellenbosch University, South Africa Seth C Kalichman --- University of Connecticut, USA Kathleen J Sikkema --- Duke University, USAObjective: This study explored the perceived impact of parental drinking on children in a South African township where alcohol abuse is prevalent and high levels of existing poverty and violence may exacerbate potential consequences on children. -
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... -
Occurrence, abundance and distribution of benthic macroinvertebrates in the Nyando River catchment, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DA Abong'o --- Department of Chemistry, School of Physical Sciences, Kenya SO Wandiga --- Department of Chemistry, School of Physical Sciences, Kenya IO Jumba --- Department of Chemistry, School of Physical Sciences, Kenya PJ Van den Brink --- Aquatic Ecology and Water Quality Management Group, The Netherlands BB Naziriwo --- Department of Chemistry, Uganda VO Madadi --- Department of Chemistry, School of Physical Sciences, Kenya GA Wafula --- Department of Chemistry, School of Physical Sciences, Kenya P Nkedi-Kizza --- Soil and Water Science Department, USA H Kylin --- Department of Water and Environmental Studies, SwedenA baseline study was conducted of the occurrence of macroinvertebrates at 26 sites in the Nyando River catchment in 2005–2006. A total of 13 orders and 16 families of Arthropoda, Mollusca, Platyhelminthes and Annelida were collected, with the order Ephemeroptera... -
Connected Domination Stable Graphs Upon Edge Addition
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Wyatt J. Desormeaux --- Department of Mathematics, South Africa Teresa W. Haynes --- Department of Mathematics and Statistics, USA Lucas van der Merwe --- Department of Mathematics, USAA set S of vertices in a graph G is a connected dominating set of G if S dominates G and the subgraph induced by S is connected. We study the graphs for which adding any edge does not change... -
Roman and Total Domination
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mustapha Chellali --- LAMDA-RO Laboratory, Department of Mathematics, Algeria Teresa W. Haynes --- Department of Mathematics and Statistics, South Africa Stephen T. Hedetniemi --- Professor Emeritus, School of Computing, Clemson University, USAA set S of vertices is a total dominating set of a graph G if every vertex of G is adjacent to some vertex in S. The minimum cardinality of a total dominating set is the total domination number γt(G)... -
Open Source as a viable technical resource for Nigeria's developing health system
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ogochukwu Eburuoh --- Department of Computer Science, USAThis article provides an in-depth analysis into the usefulness of Open Source Electronic Health Recording Systems for Nigeria's struggling health care system. It critiques the present quality of care received by patients, while advocating a revised education and management infrastructure... -
Integrating indigenous knowledge into appropriate technology development and implementation
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Tharakan --- Department of Chemical Engineering, USAAppropriate Technology (AT) implementation should foster community empowerment and sustainability. Successful implementation requires community engagement throughout - technology conceptualization, development, implementation, assessment and impact evaluation. Development professionals should be sensitive to socio-cultural context and respect local knowledge, part of the... -
Ethics and extinction: Micro versus macro appropriate technology
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: C. Verharen --- Department of Philosophy, F. Bugarin --- African Studies Department, D. Schwartzman --- Department of Biology (ret.), J. Tharakan --- Department of Chemical Engineering, B. Gutema --- Department of Philosophy, Ethiopia J. Fortunak --- Department of Chemistry & Pharmaceutical Sciences, G. Middendorf --- Department of Biology, USAEthical theory and technology practice raise two primary questions. First, what are the ethical principles driving sustainable appropriate technology? Second, what are the viable applications of those principles with respect to alternative appropriate technologies? The hypothesis of this study is... -
School adjustment of adolescents affected by HIV and AIDS: A case study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Olubusayo Aduke Asikhia --- Department of Psychology of Education, South Africa Kesh Mohangi --- Department of Psychology of Education, South AfricaThe study examined the school adjustment of South African adolescents affected by HIV and AIDS . Participants were a convenient sample of 60 adolescents from a secondary school in a major South African city (females = 73 .33%, 50% affected... -
Use of low cost pest exclusion nets can boost cabbage yield
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: J. Kiptoo --- Department of Biological Science, Kenya M. Kasina --- National Sericulture Research Center (KALRO), Kenya F. Wanjala --- Department of Biological Science, Kenya P. Kipyab --- Kenya Plant Health Inspectorate Service, Kenya L.A. Wasilwa --- Kenya Agricultural Research Institute, Kenya M. Ngouajio --- Michigan State University, USA T. Martin --- Cirad UR Hortsys, FranceIn this study, low-cost pest exclusion nets (lcPENs) were evaluated to determine their efficacy in reducing pest infestation and enhancing yields of cabbage at KALRO Kabete and PTC (Practical Training Centre) Thika, Kenya, from March to September 2011 both at... -
An analysis of Bat Hawk Macheiramphus alcinus diet in the Melaky Region of lowland western Madagascar
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Steven M Goodman --- Field Museum of Natural History, USA Stéphanie VJ Razakaratrimo --- Peregrine Fund Madagascar, Madagascar Lily-Arison Réné de Roland --- Peregrine Fund Madagascar, MadagascarWe present information on the prey taken by the Bat Hawk Macheiramphus alcinus in two different areas of lowland western central Madagascar. These are the first dietary data from Madagascar for this widespread Old World species. The recovered remains were... -
Diet of the Silvery-cheeked Hornbill Bycanistes brevis during the breeding season in the East Usambara Mountains, Tanzania
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Norbert J Cordeiro --- Department of Biological, Chemical, and Physical Sciences, USA Joshua T Campbell --- Department of Biological, Chemical, and Physical Sciences, USA Henry J Ndangalasi --- Department of Botany, TanzaniaThe breeding season diet and nesting characteristics of the Silvery-cheeked Hornbill Bycanistes brevis are poorly known. To further understand these aspects of the breeding biology of this hornbill species, 14 nests were studied in and around Amani Nature Reserve located... -
Strengthening Capacity for Agribusiness Development and Management in Sub-Saharan Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Suresh Chandra Babu --- Capacity Strengthening Program, USA Rupak Manvatkar --- World Food Programme, Italy Shashidhara Kolavalli --- Ghana Strategy Support Program, GhanaIn sub-Saharan Africa, agribusiness has a major role to play in the transformation of the agricultural sector. The demand for high-value food products is increasing, creating an opportunity for the production and export of these goods. To capture the benefits... -
The African Union's Agenda 2063: Aspirations, Challenges, and Opportunities for Management Research
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Kaitlyn DeGhetto --- Department of Management, USA Jacob R. Gray --- Department of Entrepreneurship, Strategy, and Information Systems, USA Moses N. Kiggundu --- Sprott School of Business, Carleton University, CanadaAs Africa emerges, rises, and begins to forge a more positive outlook ahead, scholars, business executives, community leaders, and policymakers are increasingly calling for concerted efforts to rethink the future and come up with big ideas for the 21st century... -
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... -
Against the conditional correctness of scepticism
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Kaplan Hasanoglu --- Philosophy Department, USAStroud has argued for many years that scepticism is conditionally correct. We cannot, he claims, both undergo a Cartesian-style examination of the extent of our knowledge as well as avoid scepticism. One reason Stroud's position appears quite plausible is the... -
Involving parents from the start: formative evaluation for a large randomised controlled trial with Botswana Junior Secondary School students
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jessica Vig --- Association of Schools and Programs of Public Health, Kim S. Miller --- Centers for Disease Control and Prevention, USA Catherine Chirwa-Motswere --- Centers for Disease Control and Prevention, Botswana Kate Winskell --- Emory University Rollins School of Public Health, Georgia Elizabeth Stallcup --- Centers for Disease Control and Prevention, USAWhile HIV prevention research conducted among adolescent populations may encounter parental resistance, the active engagement of parents from inception to trial completion may alleviate opposition. In preparation for implementing a large randomised controlled trial (RCT) examining the efficacy of a... -
The use of cash transfers for HIV prevention — are we there yet?
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jessica Taaffe --- The World Bank Group, USA Nejma Cheikh --- The World Bank Group, USA David Wilson --- The World Bank Group, USAPoverty and social inequality are significant drivers of the HIV epidemic and are risk factors for acquiring HIV. As such, many individuals worldwide are at risk for new HIV infection, especially young women in East and Southern Africa. By addressing... -
HIV/AIDS among pastoralists and refugees in north-east Africa: a neglected problem
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mirgissa Kaba Serbessa --- School of Public Health, College of Health Sciences, Damen Haile Mariam --- School of Public Health, College of Health Sciences, Afework Kassa --- IGAD Regional HIV/AIDS Partnership Program-Programme Facilitation Office (IRAPP-PFO), Uganda Fathia Alwan --- Intergovernmental Authority for Development (IGAD) Secretariat, Djibouti Helmut Kloos --- Department of Epidemiology and Biostatistics, USAThe eight member states (Djibouti, Eritrea, Ethiopia, Kenya, Somalia, South Sudan, Sudan and Uganda) of the Intergovernmental Authority for Development (IGAD) have the largest proportions of cross-border mobile pastoralists and refugees in Africa. Although all IGAD countries have had national... -
Aboveground biomass production of a semi-arid southern African savanna: towards a new model
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Anthony R Palmer --- Agricultural Research Council–Animal Production Institute, South Africa Igshaan Samuels --- Agricultural Research Council–Animal Production Institute, South Africa Clement Cupido --- Agricultural Research Council–Animal Production Institute, South Africa Andiswa Finca --- Agricultural Research Council–Animal Production Institute, South Africa W Fransiska Kangombe --- Department of Biological Sciences, Namibia Isa AM Yunusa --- School of Environmental and Rural Sciences, Australia Susanne Vetter --- Department of Botany, South Africa Isaac Mapaure --- Department of Biological Sciences, NamibiaFollowing a field campaign to determine the species composition, canopy cover, aboveground annual production and leaf area index (LAI) of the semi-arid savanna of north-western Namibia, we present a production model that can be used by graziers to determine the... -
The Governance of Rangelands: Collective Action for Sustainable Pastoralism
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Maria Fernandez-Gimenez --- Department of Forest and Rangeland Stewardship, USA -
Studying the Logone floodplain, Cameroon, as a coupled human and natural system
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Moritz --- Department of Anthropology, USA S Laborde --- Department of Anthropology, USA SC Phang --- Department of Evolution, Ecology, and Organismal Biology, USA M Ahmadou --- University of Maroua, Cameroon M Durand --- Byrd Polar Research Center, USA A Fernandez --- Byrd Polar Research Center, USA IM Hamilton --- Department of Evolution, Ecology, and Organismal Biology, USA S Kari --- Centre d'Appui a la Recherche et au Pastoralisme (CARPA), Cameroon B Mark --- Byrd Polar Research Center, USA P Scholte --- Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ), Cameroon N Xiao --- Department of Geography, USA R Ziebe --- University of Maroua, CameroonAfrican floodplains are an excellent example of coupled human–natural systems because they exhibit strong interactions among multiple social, ecological, and hydrological systems. The intra-annual and interannual variations in seasonal flooding have direct and indirect impacts on ecosystems and human lives... -
Essential extensions with the
-extending property Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Gary F. Birkenmeier --- Department of Mathematics, USA Adnan Tercan --- Hacettepe University, Turkey Canan C Yücel --- Department of Mathematics, TurkeyLet be a nonempty subset of the set of submodules of a module M . Then M is called a -extending module if for each X in there exists a direct summand D of M such that X is essential... -
Finitely based finite involution semigroups with non-finitely based reducts
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Edmond W.H. Lee --- Division of Math, Science, and Technology, USASince the study of the finite basis problem for finite semigroups began in the 1960s, it has been unknown if there exists any finite involution semigroup that is finitely based but the reduct of which is non-finitely based. The present... -
Using an unbaited stationary video system to investigate the behaviour and interactions of bull sharks Carcharhinus leucas under an aquaculture farm
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: N Loiseau --- Institut de Recherche pour le Développement [IRD], UMR ENTROPIE (IRD, Universite de La Réunion, CNRS), Laboratoire d'Excellence [LABEX] CORAIL, France JJ Kiszka --- Marine Sciences Program, Department of Biological Sciences, USA T Bouveroux --- Coastal and Marine Research Institute, Nelson Mandela Metropolitan University, South Africa MR Heithaus --- Marine Sciences Program, Department of Biological Sciences, USA M Soria --- IRD – UMR EME, France P Chabanet --- Institut de Recherche pour le Développement [IRD], UMR ENTROPIE (IRD, Universite de La Réunion, CNRS), Laboratoire d'Excellence [LABEX] CORAIL, FranceBull sharks Carcharhinus leucas are common along the coast of Reunion Island (South-West Indian Ocean) and were suspected to aggregate in the vicinity of an aquaculture farm in Saint-Paul Bay on the west coast. In order to understand the behaviour... -
DNA fingerprinting of open-pollinated maize seed lots to establish genetic purity using simple sequence repeat markers
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Peter S Setimela --- Maize Program, International Maize and Wheat Improvement Center (CIMMYT), Zimbabwe Marilyn L Warburton --- Corn Host Plant Resistance Research Unit, United States Department of Agriculture, USA Tertia Erasmus --- INCOTEC South Africa (Pty) Ltd, South AfricaMaize (Zea mays L.) plays a dominant role in farming systems in sub-Saharan Africa (SSA). There has been a four-to-five-fold increase in the number of seed companies in SSA in the last decade, and yet more than half of small-holder... -
Correlates of bacterial ulcers and acute HSV-2 infection among men with genital ulcer disease in South Africa: age, recent sexual behaviours, and HIV
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Jami S. Leichliter --- Division of STD Prevention, USA David A. Lewis --- Centre for HIV and STIs, National Institute for Communicable Diseases, South Africa Gabriela Paz-Bailey --- Division of HIV/AIDS Prevention, USAData from baseline surveys and STI/HIV laboratory tests (n=615 men) were used to examine correlates of bacterial ulcers (Treponema pallidum, Haemophilus ducreyi, or Chlamydia trachomatis L1-L3 detected in ulcers) and acute HSV-2 ulcers (HSV-2 positive ulcer specimen, HSV-2 sero-negative, and... -
Nostalgia in the post-apartheid state
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Amber R. Reed --- Anthropology and Africana Studies Departments, USAIn this article, I join recent theorists in furthering an “anthropology of nostalgia,” seeking connections between disparate parts of the globe through a shared sense of loss in the face of global capitalism and liberal democracy. Highlighting contemporary work, I... -
Training and development for career management and talent development in wholesale and retail industry in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ngirande Hlanganipai --- Department of Human Resource Management and Labour Relations, South Africa Mazanai Musara --- School of Business and Economics,The study investigated ways to achieve sustainable career management as well as talent management for employees of a wholesale and retail industry operating in the city of Polokwane, South Africa. Employees (n = 85; females = 47%) completed a questionnaire... -
On Order Bounded Subsets of Locally Solid Riesz Spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Liang Hong --- , , USAIn a topological Riesz space there are two types of bounded subsets: order bounded subsets and topologically bounded subsets. It is natural to ask (1) whether an order bounded subset is topologically bounded and (2) whether a topologically bounded subset... -
Fats and oils — towards more specific quantitative and qualitative guidelines for South Africans?
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: H.H. Vorster --- School of Physiology, Nutrition and Consumer Sciences, North West T.A. Nell --- School of Physiology, Nutrition and Consumer Sciences, North West S. Kumanyika --- School of Medicine, USA E.S. Tee --- Institute for Medical Research, MalaysiaThis paper briefly reviews the role of dietary fats (lipids) in human nutrition, summarises the contribution to the symposium on fats and oils during the 2000 South African Nutrition Congress, and examines the present recommendations and controversies regarding fat intake,... -
Impact of dietary iron intake on anaemia in Tanzanian schoolchildren
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Simon Tatala --- Department of Food Science and Nutrition, Godwin Ndossi --- Department of Food Science and Nutrition, Ulf Svanberg --- Department of Public Health and Nutrition, USA Deborah Ash --- Department of Food Science, SwedenObjective. To investigate the nutritional relationship between dietary intake and prevalence of anaemia among Tanzanian schoolchildren. Methods. Dietary intakes of 101 schoolchildren aged 7 - 12 years were assessed using a pre-tested food frequency questionnaire. Haemoglobin (Hb), haematocrit, erythrocyte protoporphyrin... -
‘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, -
Global dimensions and dynamics of the nutrition transition
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: B M Popkin --- Department of Nutrition, School of Public Health, USA -
Community intervention for the emerging epidemic of non-communicable diseases
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Thandi Puoane --- School of Public Health, Hazel Bradley --- School of Public Health, Gail Hughes --- University of Mississippi Medical Center, USABackground. Community health workers (CHWs) are lay people trained to assist with health care in their communities. This study took place at two sites in Khayelitsha, a township in the Cape Peninsula, from 2000 to 2002. -
Determinants of obesity in an urban township of South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: R Malhotra --- Department of Community and Family Medicine, USA C Hoyo --- Department of Community and Family Medicine, USA T Østbye --- Department of Community and Family Medicine, USA G Hughes --- Departments of Family Medicine and Surgery, Brody School of Medicine, USA D Schwartz --- Department of Community and Family Medicine, USA L Tsolekile --- School of Public Health, South Africa J Zulu --- School of Public Health, South Africa T Puoane --- School of Public Health, South AfricaObjective: To estimate the prevalence of overweight and obesity, and identify factors associated with Body Mass Index (BMI) and waist circumference (WC) among adults residing in an urban township in South Africa. -
Optimal composition of intravenous lipids
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: G. Kreymann --- Baxter Healthcare, USAThe provision of energy from a lipid source is an essential component of any parenteral nutrition (PN) therapeutic regimen in the appropriate clinical setting. All available sources of intravenous lipid emulsions have a low osmolarity but they strongly differ in... -
New developments in clinical practice guidelines
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: G. Kreymann --- Baxter Healthcare, USADuring the last four years revised clinical practice guidelines on nutritional support have been published by the major nutritional societies worldwide. The aim of these guidelines is to promote the safe and effective care of patients who need nutritional support... -
Nutrition education to improve dietary intake and micronutrient nutriture among children in less-resourced areas: a randomised controlled intervention in Kabarole district, western Uganda
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: M Kabahenda --- Department of Food Science and Technology, Rm Mullis --- Department of Foods and Nutrition, USA Jg Erhardt --- Seameo-Tropmed RCCN, C Northrop-Clewes --- Gain, Sy Nickols --- University of Georgia, USAObjective: To determine whether nutrition education targeting the child-feeding practices of low-income rural caregivers will reduce anaemia and improve vitamin A nutriture of the young children in their care. -
The impact of morbidity on food intake in rural Kenyan children
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Cg Neumann --- Departments of Community Health Sciences and Pediatrics, USA M. Marquardt --- Emergency Medicine, USA No Bwibo --- Department of Pediatrics, KenyaObjective: To quantify the effect of common illnesses on energy intake in rural Kenyan children. -
An investigation into utilising gestational body mass index as a screening tool for adverse birth outcomes and maternal morbidities in a group of pregnant women in Khayelitsha
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Hr Davies --- Division of Human Nutrition, J Visser --- Division of Human Nutrition, M Tomlinson --- Department of Psychology, Mj Rotheram-Borus --- Semel Institute and the Department of Psychiatry University of California, USA C Gissane --- School of Human and Applied Science, UK J Harwood --- Semel Institute and the Department of Psychiatry University of California, USA I LeRoux --- Philani Child Health and Nutrition Centre,Objective: The aim of this study was to investigate the ability of the gestational body mass index (BMI) method to screen for adverse birth outcomes and maternal morbidities. -
Determinants of obesity and perception of weight in hypertensive patients in rural South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Pr Duncan --- Academic Clinical Fellow and General Practice Trainee, Bristol Ld Howe --- MRC Integrative Epidemiology Unit University of Bristol, Bristol Z. Manukusa --- Manguzi Hospital, Durban S. Purdy --- Academic Clinical Fellow and General Practice Trainee, BristolObjective: The objective of the study was to identify factors associated with being overweight or obese, and perceptions of weight by hypertensive patients living in rural South Africa. -
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. -
Serum cholesterol as a risk factor for coronary heart disease revisited
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Je Rossouw --- Chief Women’s Health Initiative Branch, Program for Population Science and Prevention Division of Cardiovascular Sciences, USAThe biology of lipoproteins and lipoprotein particles as mediators of atherosclerosis has been documented extensively. Numerous prospective epidemiological studies have shown a robust relationship between low-density lipoprotein (LDL) cholesterol, or particles bearing apolipoprotein B, and increased risk of coronary heart... -
The diet-heart hypothesis, obesity and diabetes
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Je Rossouw --- Women’s Health Initiative Branch, Program for Population Science and Prevention Division of Cardiovascular Sciences, USAHuman feeding studies show that dietary fat quality, but not total fat intake, influences levels of low-density lipoprotein (LDL) cholesterol. Meta-analyses indicate an association with reduced coronary heart disease (CHD) risk when saturated fatty acid is replaced with polyunsaturated fatty... -
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... -
Inequalities in scholarly knowledge: Public value failures and their impact on global science
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Thema Monroe-White --- SageFox Consulting Group, USA Thomas S. Woodson --- Department of Technology and Society, USAThere is a growing body of literature that acknowledges the overall trends in publication patterns in the least economically advantaged countries. The pattern shows that there are disparities between the Global North and Global South with regard to indexed publication... -
HIV-related knowledge and practices: a cross-sectional study among adults aged 50 years and above in Botswana
Item type: Journal Article • Journal: South African Family Practice • Authors: Njoku Ola Ama --- Department of Statistics, Botswana Sheila Shaibu --- School of Nursing, Botswana Jacqueline Denise Burnette --- School of Social Work, USABackground: Older adults in Botswana have been shown to be sexually active and engage in risky sexual activities that make them vulnerable to HIV infection. In order to implement meaningful interventions to address older adults’ HIV and AIDS concerns it... -
Soil carbon dioxide effluxes from different vegetation environments in semi-arid Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Rebecca Zengeni --- Soil Sciences Department, South Africa Vincent Kakembo --- Department of Geosciences, South Africa Nsalambi Nkongolo --- Centre of Excellence for Geospatial Information Science, USAThough important, CO2 effluxes from non-agricultural ecosystems are poorly characterised. Given that thicket vegetation is prevalent in Eastern Cape, South Africa, we monitored soil CO2 effluxes from an intact thicket, degraded thicket (DT) and grassland (G) over 10 months, as... -
Decomposition of cattle dung on grazed signalgrass (Brachiaria decumbens Stapf) pastures in monoculture or intercropped with tree legumes
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Hugo NB Lima --- Animal Science, Brazil Jose C Dubeux Jr --- North Florida Research and Education Center, USA Mercia VF dos Santos --- Animal Science, Brazil Alexandre CL de Mello --- Animal Science, Brazil Mario A Lira --- Animal Science, Brazil Marcio V Cunha --- Animal Science, BrazilLivestock excreta is one of the major nutrient sources in natural grasslands. Understanding how livestock diet and season affects the decomposition dynamics is critical to nutrient cycling models. We hypothesised that livestock diet and season of the year affect dung... -
Different drivers create spatial vegetation cover and vertical structure in semi-arid African savannas
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Rheinhardt Scholtz --- Scientific Services, South African National Parks, South Africa Gregory A Kiker --- Department of Agricultural and Biological Engineering, USA Gregory D Duckworth --- Department of Statistics, South Africa Ursula M Scharler --- School of Life Sciences, South Africa Henry G Mwambi --- School of Mathematics, Statistics and Computer Science, South Africa Frederick J Venter --- Conservation Management, South AfricaImportant drivers of woody cover in African savannas are rainfall, soil and nutrients, and disturbance factors, such as fire and herbivory. However, very little is known about how these drivers influence woody cover at specific height classes. The main aim... -
Psychometric properties of beliefs about relationship violence against women and gender stereotypes scale
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sunday B. Fakunmoju --- Department of Social Work, USA Funmi O. Bammeke --- Department of Sociology, Nigeria Felicia A. D. Oyekanmi --- Department of Sociology, Nigeria Segun Temilola --- Department of Sociology, Nigeria Bukola George --- Department of Sociology, NigeriaThis article describes psychometric properties of the Gender-Based Relationship Violence Beliefs Scale (BEREVIWOS) and the Gender Stereotypes and Beliefs (GESTABE) scale in a Nigerian setting. Analysis was based on a convenience sample of 202 respondents. Confirmatory factor analysis (CFA) was... -
Intimate partner violence among HIV positive pregnant women in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Gladys Matseke --- HIV/AIDS/STI and TB (HAST), Human Sciences Research Council, South Africa Violeta J Rodriguez --- Department of Psychiatry & Behavioral Sciences, USA Karl Peltzer --- HIV/AIDS/STI and TB (HAST), Human Sciences Research Council, South Africa Deborah Jones --- Department of Psychiatry & Behavioral Sciences, USAThe aim of the study was to determine the prevalence of intimate partner violence (IPV) and associated factors among pregnant HIV-infected women in primary health care facilities in Nkangala and Gert Sibande districts, Mpumalanga, South Africa. Participants were 673 women... -
Current distribution, breeding population and habitat use of the globally threatened Grey-necked Picathartes Picathartes oreas in south-eastern Nigeria: a call for conservation action
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Fidelis Akunke Atuo --- Department of Natural Resource Ecology and Management, USA Samuel T Ivande --- AP Leventis Ornithological Research Institute (APLORI), Nigeria Zingfa J Wala --- AP Leventis Ornithological Research Institute (APLORI), Nigeria Shiiwa Manu --- AP Leventis Ornithological Research Institute (APLORI), Nigeria Timothy J O’Connell --- Department of Natural Resource Ecology and Management, USAThe Grey-necked Picathartes Picathartes oreas is a globally threatened bird species in Africa with a wild population of less than 10,000 individuals. The Nigerian population, which has been poorly studied, is restricted to the forest of Cross River. This study... -
Hooded Vulture Necrosyrtes monachus and African White-backed Vulture Gyps africanus nesting at the Olifants River Private Nature Reserve, Limpopo province, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ara Monadjem --- Department of Biological Sciences, Swaziland Kerri Wolter --- VulPro NPC, South Africa Walter Neser --- VulPro NPC, South Africa Keith Bildstein --- Acopian Center for Conservation Learning, USABasic ecological information is still lacking for many species of African vultures. The Hooded Vulture Necrosyrtes monachus is known as a rare breeding resident in north-eastern South Africa. This study set out to monitor the nests of Hooded Vultures and,... -
Diet of nesting African Crowned Eagles Stephanoaetus coronatus in emerging and forest–savanna habitats in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Gerard Malan --- Department of Nature Conservation, South Africa Eleen Strydom --- Department of Nature Conservation, South Africa Susanne Shultz --- Faculty of Life Sciences, UK Graham Avery --- Natural History Collections Department, South AfricaThe aim of this study was to investigate the species composition of prey caught in the forest, savanna and emerging habitats in which African Crowned Eagles Stephanoaetus coronatus breed in KwaZulu-Natal province, South Africa. At the 17 nest sites, the... -
Habitat selection of the Black-shouldered Kite Elanus caeruleus in agroecosystems of Swaziland
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Katharine A Howard --- Department of Wildlife, Sustainability, and Ecosystem Sciences, USA Thomas W Schwertner --- Department of Wildlife, Sustainability, and Ecosystem Sciences, USA James P Muir --- Department of Wildlife, Sustainability, and Ecosystem Sciences, USA Ara Monadjem --- All Out Africa Research Unit, Department of Biological Sciences, SwazilandA decline in many African raptor populations may contribute to loss of ecosystem services such as pest control. The Black-shouldered Kite Elanus caeruleus stands out as an exception, experiencing range expansions due to its proclivity for agricultural landscapes. We surveyed... -
Choice in HIV testing: the acceptability and anticipated use of a self-administered at-home oral HIV test among South Africans
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Elizabeth A Kelvin --- City University New York Graduate School of Public Health and Health Policy, City University of New York, USA Sonia Cheruvillil --- City University New York Graduate School of Public Health and Health Policy, City University of New York, USA Stephanie Christian --- City University New York Graduate School of Public Health and Health Policy, City University of New York, USA Joanne E Mantell --- Division of Gender, Health and Sexuality, HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Department of Psychiatry, USA Cecilia Milford --- MatCH Research (Maternal, Adolescent and Child Health Research), Department of Obstetrics and Gynaecology, South Africa Letitia Rambally-Greener --- MatCH Research (Maternal, Adolescent and Child Health Research), Department of Obstetrics and Gynaecology, South Africa Nzwakie Mosery --- MatCH Research (Maternal, Adolescent and Child Health Research), Department of Obstetrics and Gynaecology, South Africa Ross Greener --- MatCH Research (Maternal, Adolescent and Child Health Research), Department of Obstetrics and Gynaecology, South Africa Jennifer A Smit --- MatCH Research (Maternal, Adolescent and Child Health Research), Department of Obstetrics and Gynaecology, South AfricaCombination HIV prevention is being widely promoted by funders. This strategy aims to offer HIV prevention choices that can be selected and combined to decrease HIV risk in ways that fit with each individual’s situation. Treatment as prevention and pre-exposure... -
Strengthening HIV surveillance: measurements to track the epidemic in real time
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Usangiphile E Buthelezi --- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, South Africa Candace L Davidson --- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, South Africa Ayesha BM Kharsany --- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R Mandela School of Medicine, South AfricaSurveillance for HIV as a public health initiative requires timely, detailed and robust data to systematically understand burden of infection, transmission patterns, direct prevention efforts, guide funding, identify new infections and predict future trends in the epidemic. The methods for... -
Traditional healers and the “Fast-Track” HIV response: is success possible without them?
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Suzanne Leclerc-Madlala --- Office of HIV and AIDS, Global Health Bureau, USA Edward Green --- Department of Anthropology, USA Mary Hallin --- College of Business Administration, USAThe rapid scale-up of effective HIV prevention strategies is a central theme of the post-2015 health and development agenda. All major global HIV and AIDS funders have aligned their policies and plans to achieve sharp reductions in new HIV infections... -
Directed partial orders on real quaternions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jingjing Ma --- Department of Mathematics, USAIt is shown that a division ring of real quaternions can be made into a partially ordered ring with a directed partial order. -
Destructive and Transformational Leadership in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Manfred F. R. Kets de Vries --- INSEAD, France Jennifer C. Sexton --- College of Business and Economics, USA B. Parker Ellen --- D’Amore-McKim School of Business, USAThe continent of Africa presents a unique context of study for leadership scholars. A vast expanse of land encompassing over 50 countries, territories, and states with over 1.1 billion people, Africa’s diversity of ethnicities, cultures, and languages are both sources... -
The economics of the carbon sequestration potential of plantation forestry in south-western Uganda
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Isaac Kiyingi --- National Forestry Resources Research Institute, Uganda Abdi-Khalil Edriss --- Department of Agricultural and Applied Economics, Faculty of Development Studies, Malawi Alexander MR Phiri --- Department of Agricultural and Applied Economics, Faculty of Development Studies, Malawi Buyinza Mukadasi --- School of Postgraduate Studies, Uganda Susan Tumwebaze --- School of Forestry, Environment and Geographical Sciences, Uganda Hillary Agaba --- National Forestry Resources Research Institute, UgandaThis study assessed the amount of carbon stored and the economic viability of the small-scale Clean Development Mechanism (CDM) carbon offsets in Pinus caribaea and Eucalyptus grandis plantations under varying rotations. Volume equations were used to estimate carbon stocks and... -
Consuming the daily recommended amounts of dairy products would reduce the prevalence of inadequate micronutrient intakes in the United States: diet modelling study based on NHANES 2007–2010
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Erin E Quann --- Dairy Management Inc., USA Victor L Fulgoni --- Nutrition Impact, LLC, USA Nancy Auestad --- Nutrition Insights, LLC, USABackground: A large portion of Americans are not meeting the Dietary Reference Intakes (DRI) for several essential vitamins and minerals due to poor dietary choices. Dairy products are a key source of many of the nutrients that are under consumed,... -
True height and variability in estimates thereof across race and gender
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Christen Lahner --- Discipline of Dietetics and Human Nutrition, School of Agricultural Sciences and Agribusiness, Faculty of Science and Agriculture, Susanna Kassier --- Discipline of Dietetics and Human Nutrition, School of Agricultural Sciences and Agribusiness, Faculty of Science and Agriculture,Although standing height is the ideal indicator of a subject’s true height, numerous internal and external factors can have an effect on its accuracy. These factors include measurement error, the clinical environment, growth and a secular change in growth, and... -
Mitochondrial DNA sequence variation in Hippopotamus amphibius from Kruger National Park, Republic of South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Richard Beckwitt --- Department of Biology, USA Jessica Barbagallo --- Department of Biology, USA Nickolas Breen --- Department of Biology, USA Julia Hettinger --- Department of Biology, USA Angelo Liquori --- Department of Biology, USA Cesar Sanchez --- Department of Biology, USA Nathalia Vieira --- Department of Biology, USA William Barklow --- Department of Biology, USAPopulations of Hippopotamus amphibius have declined throughout Africa in recent years, and are expected to decline further. An understanding of the population genetics of individual populations of hippos is necessary for effective management. To that end, we sequenced a portion... -
Species composition, abundance and biomass of microphytoplankton in the KwaZulu-Natal Bight on the east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JS van der Molen --- Council for Scientific and Industrial Research, South Africa UM Scharler --- School of Life Sciences, South Africa D Muir --- Medgar Evers College, City University of New York, USANearshore marine environments are influenced by an array of variables that can either be land-derived or of marine origin, and nearshore phytoplankton communities may differ in their taxonomic composition and biomass in response to such variables. The KwaZulu-Natal Bight (hereafter... -
A seasonal comparison of prokaryote numbers, biomass and heterotrophic productivity in waters of the KwaZulu-Natal Bight, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Muir --- Medgar Evers College, USA T Kunnen --- School of Life Sciences, South Africa UM Scharler --- School of Life Sciences, South AfricaThe KwaZulu-Natal Bight is a shallow indentation of the eastern seaboard of South Africa, characterised by a narrow (45 km wide) extension of the continental shelf, with a shelf break at about 100 m. It has a complex hydrography: the... -
Riverine influence determines nearshore heterogeneity of nutrient (C, N, P) content and stoichiometry in the KwaZulu-Natal Bight, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: UM Scharler --- School of Life Sciences, South Africa MJ Ayers --- School of Life Sciences, South Africa AM de Lecea --- School of Life Sciences, South Africa M Pretorius --- Department of Biodiversity and Conservation Biology, South Africa ST Fennessy --- Oceanographic Research Institute, South Africa JA Huggett --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa CF MacKay --- Oceanographic Research Institute, South Africa D Muir --- Medgar Evers College, USARiverine influences on nearshore oceanic habitats often have detrimental consequences leading to algal blooms and hypoxia. In oligo- to mesotrophic systems, however, nutrient delivery via rivers may stimulate production and even be a vital source of nutrients, as may nutrient... -
Arm-associated measurements as estimates of true height in black and white young adults of both genders: an exploratory study, Pietermaritzburg, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Christen R Lahner --- Dietetics and Human Nutrition, School of Agricultural, Earth and Environmental Sciences, South Africa Susanna M Kassier --- Dietetics and Human Nutrition, School of Agricultural, Earth and Environmental Sciences, South Africa Frederick J Veldman --- Dietetics and Human Nutrition, School of Agricultural, Earth and Environmental Sciences, South AfricaObjective: To determine the accuracy of arm-associated anthropometric measurements as estimates of true height. -
Anti-epileptic prescribing patterns in the South African private health sector (2008–2013)
Item type: Journal Article • Journal: South African Family Practice • Authors: Karen Jacobs --- Medicine Usage in South Africa, Faculty of Health Sciences, South Africa Marlene Julyan --- Medicine Usage in South Africa, Faculty of Health Sciences, South Africa Martie S Lubbe --- Medicine Usage in South Africa, Faculty of Health Sciences, South Africa Johanita R Burger --- Medicine Usage in South Africa, Faculty of Health Sciences, South Africa Marike Cockeran --- Medicine Usage in South Africa, Faculty of Health Sciences, South AfricaBackground: Little is known about longitudinal prescribing practices for anti-epileptic drugs (AEDs) in South Africa. The prescribing patterns and associated direct medicine costs of AEDs in the private health sector were investigated, using claims data from January 1, 2008 to... -
Investigation of the coexistence of CKD and non-communicable chronic diseases in a PBM company in South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: WP Meuwesen --- Medicine Usage in South Africa (MUSA), South Africa JM du Plessis --- Medicine Usage in South Africa (MUSA), South Africa JR Burger --- Medicine Usage in South Africa (MUSA), South Africa MS Lubbe --- Medicine Usage in South Africa (MUSA), South Africa M Cockeran --- Medicine Usage in South Africa (MUSA), South AfricaBackground: Chronic kidney disease (CKD) is a public health problem, with increasing global prevalence. Several factors could influence the prognosis of CKD, including comorbid chronic conditions. This study investigated the coexistence of CKD and non-communicable chronic diseases in the private... -
Efficacy of antimicrobial lock solutions in preventing catheter-related blood stream infection in haemodialysis patients: a systematic review and meta-analysis of prospective randomised controlled trials
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Ahmad Maifada Yakasai --- Infectious and Tropical Diseases Unit, Department of Medicine, Public Health and Diagnostic Institute, College of Medical Sciences, Nigeria Hamza Muhammad --- Infectious and Tropical Diseases Unit, Department of Medicine, Nigeria Garba Iliyasu --- Infectious and Tropical Diseases Unit, Department of Medicine, Nigeria Aisha Muhammad Nalado --- Aminu Kano Teaching Hospital, Nigeria Mahmood Muhammad Dalhat --- Infectious and Tropical Diseases Unit, Department of Medicine, Nigeria Zaiyad Garba Habib --- Department of Medicine, Nigeria Farouk Daiyabu --- Infectious and Tropical Diseases Unit, Department of Medicine, Nigeria Chinagozi Precious Edwin --- Department of Microbiology, Nigeria Musa Baba Maiyaki --- Aminu Kano Teaching Hospital, Nigeria Daiyabu Alhaji Ibrahim --- Aminu Kano Teaching Hospital, NigeriaBackground: Catheter-related blood stream infection (CRBSI) contributes to morbidity and mortality among patients on haemodialysis (HD). We carried out a systematic review and meta-analysis to assess the efficacy of antimicrobial lock solutions (ALS) in preventing CRBSI. Method: Electronic search of... -
Tobacco and alcohol use among adolescents in South Africa: shared and unshared risks
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Neo K Morojele --- Alcohol, Tobacco and Other Drug Research Unit, South Africa Judith S Brook --- Department of Psychiatry, USA David W Brook --- Department of Psychiatry, USAObjective: Tobacco and alcohol use by adolescents are major public health concerns in South Africa. However, the extent to which key psychosocial risk factors for tobacco use and alcohol use by adolescents in South Africa are shared or unshared is... -
“Every time that month comes, I remember”: using cognitive interviews to adapt grief measures for use with bereaved adolescents in South Africa
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Tory M Taylor --- Highly Vulnerable Children Research Center, School of Social Work, USA Tonya R Thurman --- Highly Vulnerable Children Research Center, School of Social Work, USA Lineo Nogela --- UNFURL Human Capital Development, South AfricaObjective: To assess standard grief measures through cognitive interviews with bereaved adolescents in Free State, South Africa, and make recommendations designed to improve the measurement of grief in this and similar populations. -
Parental HIV/AIDS and psychological health of younger children in South Africa
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Comfort Asanbe --- Department of Psychology, USA Anne-Gloria Moleko --- Department of Psychology, South Africa Maretha Visser --- Department of Psychology, South Africa Angela Thomas --- Department of Psychology, South Africa Catherine Makwakwa --- Lefika OVC Program, Lefika La Botshabelo Centre, South Africa Waleska Salgado --- Department of Psychology, USA Alexandra Tesnakis --- Department of Psychology, USAObjective: We examined several indicators of psychological health in a sample of orphans and vulnerable children (OVC) to determine if there were significant differences between those orphaned by AIDS and those orphaned by other causes, and if there were gender... -
Advanced training in child psychology: Key elements in offering a Doctor of Psychology (DPsych) programme in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ronél van der Watt --- Department of Psychology, South Africa Carla Sharp --- Developmental Psychopathology Lab, Clinical Psychology, USAThe aim of this article is to propose some benchmarks for a Doctor of Psychology (DPsych) in advanced training in Child Psychology in South Africa, and to highlight key elements in offering such a programme. In doing so, we use... -
Multiple sexual partnerships and their correlates among Facebook users in Swaziland: an online cross-sectional study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Bhekumusa Wellington Lukhele --- Department of Global Health and Socio-Epidemiology, Japan Teeranee Techasrivichien --- Department of Global Health and Socio-Epidemiology, Japan Patou Masika Musumari --- Department of Global Health and Socio-Epidemiology, Japan Christina El-saaidi --- Department of Global Health and Socio-Epidemiology, Japan S. Pilar Suguimoto --- Department of Global Health and Socio-Epidemiology, Japan Masako Ono-Kihara --- Department of Global Health and Socio-Epidemiology, Japan Masahiro Kihara --- Department of Global Health and Socio-Epidemiology, JapanSocial networking sites (SNSs) have been suggested to facilitate risky sexual activities. However, it is unknown and of concern how SNSs such as Facebook shape risky sexual activities in developing settings such as Swaziland, the country hardest hit by HIV... -
A qualitative study of migrant-related stressors, psychosocial outcomes and HIV risk behaviour among truck drivers in Zambia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lynn Murphy Michalopoulos --- School of Social Work, USA Nomagugu Ncube --- International Organization for Migration, Zambia Simona J. Simona --- Department of Social Development Studies, Zambia Brian Kansankala --- International Organization for Migration, Zambia Emmanuel Sinkala --- International Organization for Migration, Zambia Jasmin Raidoo --- School of Social Work, USATruck drivers are part of mobile populations which have been noted as a key population at risk of HIV in Zambia. This study was aimed at: (1) determining potentially traumatic events (PTEs), labour migrant-related stressors, psychosocial problems and HIV risk... -
Morbidity and nutrition status of rural drug-naïve Kenyan women living with HIV
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Charlotte G Neumann --- David Geffen School of Medicine, USA Winstone Nyandiko --- USAID – Academic Model Providing Access to Healthcare (AMPATH) Partnership, Kenya Abraham Siika --- USAID – Academic Model Providing Access to Healthcare (AMPATH) Partnership, Kenya Natalie Drorbaugh --- Jonathan and Karin Fielding School of Public Health, USA Goleen Samari --- Jonathan and Karin Fielding School of Public Health, USA Grace Ettyang --- School of Public Health, College of Health Sciences, Kenya Judith A Ernst --- Indiana University School of Health & Rehabilitation Sciences, USAThis paper describes morbidity in a group of HIV-positive drug-naïve rural women in western Kenya. A total of 226 drug-naïve HIV-positive women were evaluated for baseline morbidity, immune function, and anthropometry before a food-based nutrition intervention. Kenyan nurses visited women... -
Keeping kids in care: virological failure in a paediatric antiretroviral clinic and suggestions for improving treatment outcomes
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Susan Purchase --- HOPE Cape Town Association and Trust, South Africa Jayne Cunningham --- HOPE Cape Town Association and Trust, South Africa Monika Esser --- Immunology Unit, Division of Medical Microbiology, Department of Pathology, South Africa Donald Skinner --- Faculty of Medicine and Health Sciences, South AfricaThe burden of paediatric HIV in South Africa is extremely high. Antiretrovirals (ARVs) are now widely accessible in the country and the clinical emphasis has shifted from initiation of treatment to retention in care. This study describes the cumulative virological... -
Etmopterus alphus n. sp.: a new lanternshark (Squaliformes: Etmopteridae) from the south-western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DA Ebert --- Pacific Shark Research Center, USA N Straube --- Bavarian State Collection of Zoology, Germany RW Leslie --- Branch: Fisheries Management, South Africa S Weigmann --- University of Hamburg, GermanyA new species of lanternshark, Etmopterus alphus (Squaliformes: Etmopteridae), is described from the south-western Indian Ocean. The new species resembles other members of the ‘Etmopterus lucifer’ clade in having linear rows of dermal denticles and most closely resembles E. molleri... -
Determining the correct identity of South African Marthasterias (Echinodermata: Asteroidea)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AG Wright --- Department of Biological Sciences, South Africa R Pérez-Portela --- Center for Advanced Studies of Blanes (CEAB-CSIC), USA CL Griffiths --- Department of Biological Sciences, South AfricaMarthasterias glacialis are found in the cool-temperate waters of the north-eastern Atlantic Ocean, in the subtropical waters of the Mediterranean Sea and along the south-western tip of Africa. The South African Marthasterias population includes two morphotypes, a smooth, spineless rarispina... -
Bounds on cost effective domination numbers
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Teresa W. Haynes --- Department of Mathematics and Statistics, USA Stephen T. Hedetniemi --- School of Computing, USA Tabitha L. McCoy --- Department of Mathematics and Statistics, USA Tony K. Rodriguez --- Department of Mathematics and Statistics, USAA vertex υ in a set S is said to be cost effective if it is adjacent to at least as many vertices in V\S as it is in S and is very cost effective if it is adjacent to... -
Straight nearness spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H.L. Bentley --- Department of Mathematics, USA R.G. Ori --- Durban University of Technology, South AfricaStraight spaces are spaces for which a continuous map defined on the space which is uniformly continuous on each set of a finite closed cover is then uniformly continuous on the whole space. Previously, straight spaces have been studied in... -
Entrepreneurship in Africa: Identifying the Frontier of Impactful Research
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Richard A. Devine --- Florida State University, USA Moses N. Kiggundu --- Carleton University, CanadaThis review summarizes literature covering entrepreneurship research in Africa, examining 121 articles published in prominent entrepreneurship and management journals from 2002 to 2015. To do so, this research organizes the work done along three broad themes describing: the African entrepreneur,... -
Leaving a Social Venture: Social Entrepreneurial Exit among the Maasai in Northern Tanzania
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Alexander Tetteh Kwasi Nuer --- Social Sciences Department, The Netherlands Miguel Rivera-Santos --- Babson College, USA Carlos Rufín --- Sawyer School of Business, Suffolk University, Gert Van Dijk --- Social Sciences Department, The NetherlandsArguing that the exit of social ventures is likely to follow specific patterns, due the uniqueness of a social entrepreneur’s goals, the social venture’s emphasis on the provision of public goods, and its relationship to stakeholders, we conduct a qualitative... -
Public-Private Partnerships in Africa: Challenges and Opportunities for Future Management Research
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Bernadine J. Dykes --- Alfred Lerner College of Business & Economics, USA Carla D. Jones --- College of Business Administration, USAPublic-private partnerships (PPPs) are cooperative arrangements between governments and multinational corporations (MNCs) that are created to finance, construct and manage infrastructure projects. PPPs are a means for governments to gain much-needed private sector investment and expertise for economic development. Historically,... -
Prevention of mother-to-child transmission (PMTCT) implementation in rural community health centres in Mpumalanga province, South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Guillermo Prado --- Center for Prevention Implementation Methodology (CePIM) for Drug Abuse and Sexual Risk Behavior, USA Viviana Horigian --- Florida Node Alliance of the National Drug Abuse Treatment Clinical Trials Network, USA Stephen Weiss --- Department of Psychiatry and Behavioral Sciences, USA Ryan Cook --- Department of Psychiatry and Behavioral Sciences, USA Sibusiso Sifunda --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Deborah Jones --- Department of Psychiatry and Behavioral Sciences, USAThis study explores organisational and individual provider influences on prevention of mother-to-child transmission (PMTCT) implementation at 12 community health centres (CHCs) in a rural South African setting. Clinic staff members (N = 103; females = 86%, nurse managers = 9.7%,... -
A new galago species for South Africa (Primates: Strepsirhini: Galagidae)
Item type: Journal Article • Journal: African Zoology • Authors: Fabien Génin --- African Primate Initiative for Ecology and Speciation, Department of Zoology and Entomology, South Africa Ayabulela Yokwana --- African Primate Initiative for Ecology and Speciation, Department of Zoology and Entomology, South Africa Nokuthula Kom --- African Primate Initiative for Ecology and Speciation, Department of Zoology and Entomology, South Africa Sébastien Couette --- Ecole Pratique des Hautes Etudes, Laboratoire Paléobiodiversité et Evolution and UMR uB CNRS 6282 “Biogéosciences”, France Thibault Dieuleveut --- Emirates Center for Wildlife Propagation, Morocco Stephen D Nash --- , USA Judith C Masters --- African Primate Initiative for Ecology and Speciation, Department of Zoology and Entomology, South AfricaThe primate fauna of South Africa has historically been viewed as comprising three diurnal cercopithecoid taxa – chacma baboons (Papio ursinus), vervet (Chlorocebus pygerythrus) and samango monkeys (Cercopithecus albogularis) – and two nocturnal lorisoid species – the thick-tailed greater galago... -
Geographically widespread mitochondrial lineages of the African saw-wings inconsistent with species boundaries
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Lisa N Barrow --- Department of Biological Science, USA Desiré L Dalton --- National Zoological Gardens of South Africa, South Africa Antoinette Kotzé --- National Zoological Gardens of South Africa, South Africa Steven W Evans --- SARCHI Chair on Biodiversity Value and Change, School of Mathematical and Natural Sciences, South AfricaThe African saw-wings (genus Psalidoprocne) are a group of swallows endemic to sub-Saharan Africa. Although currently described as five species with several subspecies, the taxonomy of the saw-wings is unclear. We sequenced two mitochondrial genes (ND2 and cytb; 1 717... -
The influence of food abundance, food dispersion and habitat structure on territory selection and size of an Afrotropical terrestrial insectivore
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: William D Newmark --- Natural History Museum of Utah, USA Thomas R Stanley --- US Geological Survey, USAMost tropical insectivorous birds, unlike their temperate counterparts, hold and defend a feeding and breeding territory year-around. However, our understanding of ecological factors influencing territory selection and size in tropical insectivores is limited. Here we examine three prominent hypotheses relating... -
Of robins and Rachmaninov: a tribute to Terry Oatley
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jenny Freeman --- SelfDesign Graduate Institute, Western Washington University, USA -
Partitioning the Vertices of a Graph into Two Total Dominating Sets
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Pamela Delgado --- Department of Mathematics and Statistics, USA Wyatt J. Desormeaux --- Department of Mathematics, South Africa Teresa W. Haynes --- Department of Mathematics and Statistics, USAA total dominating set in a graph G is a set S of vertices of G such that every vertex in G is adjacent to a vertex of S. We study graphs whose vertex set can be partitioned into two... -
A cyclic iterative method for solving Multiple Sets Split Feasibility Problems in Banach Spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: O.S. Iyiola --- Department of Mathematical Sciences, USA Y. Shehu --- Department of Mathematics, NigeriaIn this paper, we construct an iterative scheme and prove strong convergence theorem of the sequence generated to an approximate solution to a multiple sets split feasibility problem in a p-uniformly convex and uniformly smooth real Banach space. Some numerical... -
Implementation of a postoperative handoff protocol
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: JJN Van Der Walt --- Department of Anaesthesia, South Africa AT Scholl --- Business Professional, USA IA Joubert --- Department of Anaesthesia and Perioperative Medicine, South Africa MA Petrovic --- Department of Anesthesiology and Critical Care Medicine, USABackground: Standardised handoff protocols have become necessary patient safety tools in the perioperative venue. In this study, the authors took a validated standardised perioperative handoff protocol and implemented it into their institution to improve the perioperative handoff communications from the... -
Validation of an efficient visual method for estimating leaf area index in clonal Eucalyptus plantations
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Rodrigo Hakamada --- Forest Resources Graduate Program, Brazil Carmeni Giunti Neto --- Fibria, Brazil Cristiane CZ de Lemos --- International Paper do Brasil, Brazil Sérgio R Silva --- National Wheat Research Center, Brazilian Agricultural Research Corporation (Embrapa), Brazil Marina SG Otto --- Department of Plant Physiology and Biochemistry, Brazil Kevin B Hall --- Department of Forestry and Environmental Resources, USA José L Stape --- Suzano Company, BrazilLeaf area index (LAI) is a key ecophysiological parameter in forest stands because it characterises the interface between atmospheric processes and plant physiology. Several indirect methods for estimating LAI have been developed. However, these methods have limitations that can affect... -
The intersection of antiretroviral therapy, peer support programmes, and economic empowerment with HIV stigma among HIV-positive women in West Nile Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nicole Coffey Kellett --- Department of Anthropology, USA Katherine Gnauck --- University of New Mexico Health Sciences Center, University of New Mexico, USAHIV stigma remains a major problem of the AIDS epidemic in sub-Saharan Africa. Women fear impending social stigma including blame, isolation and abuse. HIV infection and HIV stigma interact cyclically, creating and reinforcing economic and social exclusion for individuals living... -
Ensuring an optimal environment for peer education in South African schools: Goals, systems, standards and policy options for effective learning
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sharlene Swartz --- Human Sciences Research Council, South Africa Charles Deutsch --- Harvard Catalyst Population Health Research Program, USA Benita Moolman --- Human Sciences Research Council, South Africa Emma Arogundade --- Human Sciences Research Council, South Africa Dane Isaacs --- Human Sciences Research Council, South Africa Barbara Michel --- Centre for the Support of Peer Education, South AfricaPeer education has long been seen as a key health promotion strategy and an important tool in preventing HIV infection. In South African schools, it is currently one of the strategies employed to do so. Based on both a recent... -
AIDS at 35: A midlife crisis
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: David Wilson --- Global AIDS Program, World Bank, USA Alan Whiteside --- Global Health Policy, Balsillie School of International Affairs, Canada -
HIV care and treatment experiences among female sex workers living with HIV in sub-Saharan Africa: A systematic review
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kathryn E. Lancaster --- Division of Infectious Diseases, School of Medicine, USA Dana Cernigliaro --- Department of Health, Behavior and Society, USA Rose Zulliger --- Department of Health, Behavior and Society, USA Paul F. Fleming --- Department of Health Behavior & Health Education, USAFemale sex workers (FSW) living with HIV in sub-Saharan Africa have poor engagement to HIV care and treatment. Understanding the HIV care and treatment engagement experiences of FSW has important implications for interventions to enhance care and treatment outcomes. We... -
Dealing with disclosure: Perspectives from HIV-positive children and their older carers living in rural south-western Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Esther Dusabe-Richards --- Department of International Public Health, United Kingdom Rwamahe Rutakumwa --- Medical Research Council, Uganda Flavia Zalwango --- Medical Research Council, Uganda Allen Asiimwe --- Medical Research Council, Uganda Elvis Kintu --- Medical Research Council, Uganda Fatuma Ssembajja --- Medical Research Council, Uganda Janet Seeley --- Medical Research Council, UgandaThere are limited data on the challenges faced by carers, in particular older carers, in managing the difficult task of status disclosure for HIV-positive children. We report findings from qualitative interviews with 18 care dyads of older people and HIV-positive... -
A Review of “Entrepreneurial Intentions: A Cultural Perspective”, (Ian K. Alexander and Benson Honig)
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Anastacia Mamabolo --- Gordon Institute of Business Science, South Africa Ekaete Benedict --- University of the Free State, South Africa Hermann Ndofor --- Kelly School of Business, USAThis review of Ian Alexander and Benson Honig’s paper “Entrepreneurial intentions: A cultural perspective” highlights the importance of examining ethnicity based culture in entrepreneurship and the practical implications of Alexander and Honig’s findings. In their paper, Alexander and Honig propose... -
African Managers’ Stories and Cultural Awareness: An Exploratory Classroom Exercise
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Carol Brunt --- University of Wisconsin Whitewater College of Business and Economics, USACross-cultural awareness is an essential skill for managers of multinational corporations. In an increasingly globalized world, global awareness is a key proficiency that is essential to include in the curriculum of business schools (Ang, Van Dyne, & Koh, 2006). Recognizing... -
Dynamic Tensions from Management Control Systems and Performance in a Sub-Saharan African Economy: Mediating Effects of Competitive Strategy
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Moses Acquaah --- Department of Management, USA Ahmed Agyapong --- Department of Marketing and Corporate Strategy, GhanaThis study examines how the dynamic tension created as a result of the simultaneous and balanced use of controlling and innovative forces of management control systems indirectly influences firm performance through competitive strategy. Using data from 106 firms from Ghana,... -
Suicidal ideation among suburban adolescents: The influence of school bullying and other mediating risk factors
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: David T. Lardier --- Department of Family Science and Human Development, USA Veronica R. Barrios --- Department of Family Science and Human Development, USA Pauline Garcia-Reid --- Department of Family Science and Human Development, USA Robert J. Reid --- Department of Family Science and Human Development, USAObjective: Prior research has identified multiple factors that influence suicidal ideation (SI) among bullied youth. The effects of school bullying on SI cannot be considered in isolation. In this study, we examined the influence of school bullying on SI, through... -
Neurocognitive considerations when assessing Theory of Mind in Autism Spectrum Disorder
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Katie Hamilton --- Department of Psychology, South Africa Michelle Hoogenhout --- Department of Psychology, South Africa Susan Malcolm-Smith --- Department of Psychology, South AfricaAutism Spectrum Disorder (ASD) is characterised by poor social competence; and since Theory of Mind (ToM) is a building block for social-communicative skills and successful social integration, these skills are important to assess when preparing and monitoring educational and therapeutic... -
Role of Brycinus lateralis (Teleostei: Alestidae) in dispersal and germination of Nymphaea nouchali (Angiospermae: Nymphaeaceae) seeds on a seasonal floodplain of the Okavango Delta, Botswana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Mmusi --- Okavango Research Institute, Botswana K Mosepele --- Okavango Research Institute, Botswana M Murray-Hudson --- Okavango Research Institute, Botswana D Teketay --- Department of Crop Science and Production, Botswana M Horn --- Department of Biological Science, USASeed passage through the gut of vertebrates can be important for seed dispersal, but might influence seed viability. The ability of seeds to germinate after ingestion by seed-eating fish is important for the population dynamics of some plant species, and... -
Effect Of Replacing Fish Meal With Blood Meal On Chemical Composition Of Supplement For Nile Tilapia (Oreochromis Niloticus)
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: J. G. Kirimi --- State Department of Fisheries, Kenya L. M. Musalia --- Department of Animal Sciences, Kenya J. M. Munguti --- Kenya Marine and Fisheries Research Institute (KMFRI)-Sagana, KenyaThe objective of the work was to evaluate the effect on the nutrient content of replacing fish meal (FM) with blood meal (BM) in fish supplement. Three isonitrogenous diets (35% crude protein) were formulated using FM as the main source... -
Nonlinear *-Lie derivations of standard operator algebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Wu Jing --- Department of Mathematics & Computer Science, USALet ℋ be an infinite dimensional complex Hilbert space and ???? be a standard operator algebra on ℋ which is closed under the adjoint operation. We prove that every nonlinear *-Lie derivation δ of ???? is automatically linear. Moreover, δ... -
Comments on monoreflections in unital archimedean lattice-ordered groups and rings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Anthony W. Hager --- Department of Mathematics and Computer Science, USA James J. Madden --- Department of Mathematics, USAIn quite general concrete categories, the monoreflections which are H-closed (closed under homomorphic image) are the “naturally occuring” ones, since each is comprised of objects closed under some family of functorial implicit operations. In the specific categories under consideration here,... -
Skimmed milk as a determinant of vitamin A deficiency
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Colin Musara --- Department of Preclinical Veterinary Studies, Zimbabwe Mudavanhu Nyagura --- Department of Preclinical Veterinary Studies, ZimbabweObjective: To compare the levels of vitamin A in ultra-high temperature treated (UHT) whole milk (3.5% fat) and UHT skimmed milk (0.5% fat) using UV-visible light spectrophotometry and to compare the contribution of whole milk and skimmed milk to the... -
Nutrient addition increases biomass of soil fungi: evidence from a South African grassland
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Zivanai Tsvuura --- School of Life Sciences, South Africa Meghan L Avolio --- National Socio-Environmental Synthesis Center, USA Kevin P Kirkman --- School of Life Sciences, South AfricaTheory predicts that nutrient addition to soil reduces the benefit of mycorrhizal associations to plants. This study sought to determine how long-term management of soil fertility influences the abundance of fungal mycelium. Ingrowth mesh bags were used to measure mycelial... -
An investigation in purchasing practices of small F&B operators
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Michel Altan --- Academy of Hospitality and Facility Management, NHTV Breda, The Netherlands Christine Demen-Meier --- Ecole Hôtelière de Lausanne, Le Chalet-à-Gobet, SwitzerlandThe food and beverage (F&B) purchasing function is operating in a rapidly changing environment, whereby professionalisation and efficiency become key. This paper aims to identify generic skills that are most important for small F&B operators when it comes down to... -
The role of employee wellness programme in the hospitality industry: a review of concepts, research, and practice
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Tingting (Christina) Zhang --- Department of Human Sciences, USA Jay Kandampully --- Department of Human Sciences, USA Hye Yoon Choi --- Department of Human Sciences, USAIn the hospitality industry, employees are critical to firm success, through their intimate interactions with customers to create memorable experiences and relationships. A nascent strategy adopted by many hospitality firms seeks to increase employee engagement and commitment through employee wellness... -
Hospitality and prosumption
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: George Ritzer --- Department of Sociology, USAHospitality and the hospitality industry need to be reevaluated in the era of the new prosumer and smart prosuming machines. Traditional notions of hospitality hearken back to an earlier era and ongoing changes are forcing us to reconsider them. Among... -
Consumer patronage and willingness-to-pay at different levels of restaurant attributes: A study from Kenya
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: David Njite --- The Lester E. Kabacoff School of Hotel, Restaurant and Tourism Administration, University of New Orleans, USA Joyce Njoroge --- School of Accounting, Drake University, USA Haragopal Parsa --- Fritz Knoebel School of Hospitality Management, University of Denver, USA Rahul Parsa --- Department of Supply Chain and Information Systems, USA Jean-Pierre van der Rest --- Department of Business Studies, The NetherlandsThis study investigates the effect of three key restaurant attributes—food quality, service quality and ambiance—on consumers' (i) willingness-to-pay (WTP) and (ii) intentions to patronage (ITP) for limited service and upscale restaurants in Kenya. A full-profile 2 (types of restaurants) x... -
What drives customers to use access-based sharing options in the hospitality industry?
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Can Lu --- Department of Human Sciences, USA Jay Kandampully --- Department of Human Sciences, USAAccess-based sharing businesses have gained popularity in the hospitality industry. The recent shift of customers’ willingness to share accommodation with a host as opposed to using a private hotel room has many implications for the traditional lodging sector. Sharing firms... -
Characterisation of microsatellite markers in the Spotted Sand Lizard (Pedioplanis lineoocellata) shows low levels of inbreeding and moderate genetic diversity on a small spatial scale
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Krystal A. Tolley --- , , South Africa Ryan J. Daniels --- , , South Africa Kevin A. Feldheim --- , , USAPopulation genetic methods can be useful for understanding spatial genetic patterns, gene flow and diversity. While genetic markers such as gene sequences are useful for understanding broad scale phylogeographic patterns, microsatellite markers allow for inferences within species and on smaller... -
A review of the genus Homopholis Boulenger (Reptilia: Squamata: Gekkonidae) in southern Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Donald G. Broadley --- , Zimbabwe Todd R. Jackman --- , , USA Aaron M. Bauer --- , , USAOn the basis of molecular data, the gekkonid lizard Homopholis arnoldi Loveridge is revived as a full species. Morphologically it is usually distinguishable from H. wahlbergii on the basis of its striped dorsal colour pattern. Homopholis arnoldi has a wide... -
Laryngotracheal and cervical muscular anatomy in the genus Uroplatus (Gekkota: Gekkonidae) in relation to distress call emission
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Anthony P. Russell --- , , Canada Heather A. Hood --- , , Canada Aaron M. Bauer --- , , USAThe gekkonid Uroplatus exhibits many autapomorphic features. The laryngotracheal region has long been noted to display unusual characteristics, with a widely expanded and membrane-roofed anterior portion of the trachea being prominent among these. It has been proposed that this tracheal... -
The phylogenetic position of Ethiopia's sole endemic and biogeographically enigmatic cordylid lizard, Cordylus rivae (Squamata: Cordylidae), and a discussion of its conservation status
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Stuart V. Nielsen --- , , USA Timothy J. Colston --- , , USAAlthough the genus Cordylus has received much recent attention, previous studies have failed to include all known species, particularly for biogeographically important taxa. Recent fieldwork targeted a previously known population of Cordylus rivae from the southeast of Ethiopia's Oromia region... -
A phylogeny of Central African Boaedon (Serpentes: Lamprophiidae), with the description of a new cryptic species from the Albertine Rift
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Eli Greenbaum --- , , USA Frank Portillo --- , , USA Kate Jackson --- , , USA Chifundera Kusamba --- , , République Démocratique du CongoThe Central African house snake Boaedon olivaceus has a large distribution from the forests of West Africa to Mabira Forest in Uganda. We sequenced two mitochondrial (cyt b and ND4) and two nuclear (c-mos and RAG1) genes from several populations... -
Intraspecific behavioural variation in the lacertid lizard Meroles cuneirostris (Strauch, 1867) (Sauria:Lacertidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jackie L. Childers --- , , USA Douglas A. Eifler --- , USAWe characterised behavioural variation between adult male, adult female and juvenile Meroles cuneirostris, a diurnal lacertid lizard endemic to the Namib Desert. Variation in microhabitat preference was significant between age classes, as adults spent more time underneath vegetative cover than... -
Two new species of long-fingered frogs of the genus Cardioglossa (Anura: Arthroleptidae) from Central African rainforests
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Mareike Hirschfeld --- , , Germany David C. Blackburn --- , USA Marius Burger --- , , South Africa Eli Greenbaum --- , , USA Ange-Ghislain Zassi-Boulou --- , République du Congo Mark-Oliver Rödel --- , , GermanyWe describe two new frog species of Cardioglossa (Family Arthroleptidae) from Central Africa. The new species are found in the rainforests of western-central Democratic Republic of the Congo and the Republic of the Congo near the Gabonese border, respectively. We... -
A comparison of DNA barcoding markers in West African frogs
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Heidi J. Rockney --- , , USA Caleb Ofori-Boateng --- , Ghana Natsuko Porcino --- , , USA Adam D. Leaché --- , , USADNA barcoding has been proposed as a means of quick species identification using a short standardised segment of DNA. The established barcode gene for animals—the mitochondrial gene cytochrome oxidase one (CO1)—has been plagued by primer failure and low species identification... -
Vestigial appendicular skeletons in the African and Malagasy skink species Feylinia grandisquamis, Melanoseps ater, Grandidierina lineata and Voeltzkowia mira
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Rachel Liniewski --- , , USA Shane Stanley --- , USA Julia Andrade --- , , USA Phil Senter --- , , USAVestigial appendicular skeletons are present but have not previously been described and illustrated in the skink species Feylinia grandisquamis and Melanoseps ater. Vestigial appendicular skeletons have been described and illustrated in only one specimen of Grandidierina lineata and in a... -
On the taxonomic status of two enigmatic southern African fossorial skinks, Scelotes bicolor and S. schebeni
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Aaron M. Bauer --- , , USAThe nominal taxa Scelotes bicolor and Scelotes schebeni are known only from their respective type specimens, both now lost, and they have been regarded as species inquirendae. A review of available data confirms that earlier synonymisations with S. arenicola and... -
Analysis of genetic diversity in Rose’s mountain toadlet (Capensibufo rosei) using novel microsatellite markers
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jessica M. da Silva --- , South Africa Kevin A. Feldheim --- , USA Ryan J. Daniels --- , South Africa Shelley Edwards --- , South Africa Krystal A. Tolley --- , South AfricaOn the Cape Peninsula, Capensibufo rosei is known from only two isolated breeding populations within Table Mountain National Park. Because of its declining state, there is an urgent need to understand the genetic diversity, population structure and patterns of movement... -
Appendicular skeleton of the vestigial-limbed African skink Eumecia anchietae
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Shane G. Stanley --- , , USA Rachel M. Liniewski --- , , USA Philip J. Senter --- , , USAWithin the lizard family Scincidae (the skinks) are numerous examples of species with vestigial limbs and girdles, but these vestigial structures remain undescribed for many such species. Here we seek to partially fill this gap in knowledge by describing the... -
Dilated cardiomyopathy in a child with abdominal neuroblastoma and normal serum catecholamine levels: anaesthetic management and review of literature
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Anuradha Ganigara --- Department of Pediatric Anesthesiology, India Chandrika Yabagodu Ramavakoda --- Department of Pediatric Anesthesiology, India Chandana M Srinivasan --- Department of Pediatric Anesthesiology, India Madhusudan Ganigara --- Department of Pediatrics, USANeuroblastoma is the most common extracranial solid tumour of childhood. Dilated cardiomyopathy as an initial presentation of neuroblastoma is rare. We report the case of a three-year-old child with giant abdominal neuroblastoma encasing the abdominal aorta who presented with dilated... -
Agamben at Legon, or, Teaching “Theory” in an African University
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Akin Adesokan --- Department of Comparative Literature, Department of Cinema and Media Studies, The Media School, USACritical theory, especially the poststructuralist variant from which postcolonial studies draws its institutional support in US academia, is unthinkable outside of a philosophical tradition that goes back to Plato and is assumed to be Western. African studies, in and out... -
Things Fall Apart and the Pedagogy of Adichie’s Single Story
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Eve Eisenberg --- English Department, USAThis essay undertakes a critical examination of the epistemological and pedagogical risks and rewards of teaching Chinua Achebe’s Things Fall Apart in American secondary schools. I consider these issues from several different viewpoints. Recent research suggests that American students receive... -
Converting Achebe’s Africa for the New Tanzanian: Things Fall Apart in Swahili Translation
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Meg Arenberg --- Princeton Institute of International and Regional Studies, USAGiven the centrality of Chinua Achebe’s work in the early debates surrounding language choice in African fiction and Achebe’s own claims about the necessary transformation of English in representing African reality, what happens when his most acclaimed and archetypal novel... -
Locations, Epistemologies and Pedagogies
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: James Ogude --- Centre for the Advancement of Scholarship, South Africa Eileen Julien --- Institute for Advanced Study, Comparative Literature, French and Italian, African Studies, USA -
In defence of departure: Justice and the right to leave
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Michael Blake --- Philosophy, Public Policy, and Governance, USAI have previously argued that liberal states are limited in the means by which they can respond to the emigration of skilled professionals. In particular, the right to leave is a right of sufficient strength that it must be defended... -
Guest editors' introduction: Justice, the brain drain, and Africa: Introduction to a symposium on Debating Brain Drain
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Gillian Brock --- Philosophy, University of Auckland, New Zealand Michael Blake --- Philosophy, Public Policy, and Governance, USA -
An infinite family of cubics with emergent reducibility at depth 1
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jason I. Preszler --- Learning Centers and Department of Mathematics and Statistics, USAA polynomial f (x) has emergent reducibility at depth n if f◦k (x) is irreducible for 0 ≤ k ≤ n − 1 but f◦n(x) is reducible. In this paper we prove that there are infinitely many irreducible cubics f... -
Maps generating the same primal space
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sami Lazaar --- Department of Mathematics, Faculty of Sciences of Tunis, Tunisia Tom Richmond --- Department of Mathematics, USA Tarek Turki --- Department of Mathematics, Faculty of Sciences of Tunis, TunisiaAlexandroff topologies play an enigmatic role in topology. An important family of Alexandroff topologies are the functional Alexandroff spaces introduced by Shirazi and Golestani, and called primal topologies by O. Echi. The primal topology (f ) on X determined by... -
The Yosida space and representation of the projectable hull of an archimedean ℓ-group with weak unit
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Anthony W. Hager --- Department of Mathematics and CS, USA Warren Wm. McGovern --- H.L. Wilkes Honors College, USAW is the category of archimedean ℓ-groups with designated weak order unit. The full subcategory of W of objects for which the unit is strong unit is denoted by W∗; such ℓ-groups are called bounded. Thus arises a coreflection ... -
Sexual and reproductive health risk behaviours among South African university students: results from a representative campus-wide survey
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Susie Hoffman --- HIV Center for Clinical and Behavioral Studies, USA Michael Levasseur --- Department of Epidemiology, USA Joanne E. Mantell --- HIV Center for Clinical and Behavioral Studies, USA Mags Beksinska --- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Maternal, Adolescent and Child Health Research Unit (MatCH Research Unit), South Africa Zonke Mabude --- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Maternal, Adolescent and Child Health Research Unit (MatCH Research Unit), South Africa Claudia Ngoloyi --- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Maternal, Adolescent and Child Health Research Unit (MatCH Research Unit), South Africa Elizabeth A. Kelvin --- Epidemiology and Biostatistics Program, School of Urban Public Health, Hunter College & The CUNY School of Public Health, USA Theresa Exner --- HIV Center for Clinical and Behavioral Studies, USA Cheng-Shiun Leu --- HIV Center for Clinical and Behavioral Studies, USA Lavanya Pillay --- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Maternal, Adolescent and Child Health Research Unit (MatCH Research Unit), South Africa Jennifer A. Smit --- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Maternal, Adolescent and Child Health Research Unit (MatCH Research Unit), South AfricaAmong South African university students, HIV prevalence is lower than in age-peers, but at 3.8% it is not negligible. We examined prevalence of factors potentially associated with HIV risk, focusing on partnership characteristics and consistent condom use. We hypothesised that... -
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... -
Delivery of isoniazid preventive therapy to reduce occupational TB among healthcare workers in Swaziland
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Marianne Calnan --- University Research Co., LLC, Swaziland Samson Haumba --- University Research Co., LLC, Swaziland Makhosazana Matsebula --- University Research Co., LLC, Swaziland Ntombifuthi Shongwe --- University Research Co., LLC, Swaziland Munyaradzi Pasipamire --- Swaziland National AIDS Program, Swaziland Natalie Kruse Levy --- USAID/PEPFAR, Swaziland Munamato Mirira --- USAID/PEPFAR, Swaziland Peter Preko --- CDC, Swaziland Alisha Smith-Arthur --- University Research Co., LLC, USA Varduhi Ghazaryan --- University Research Co., LLC, USAHealthcare workers (HCWs) in Swaziland are at increased risk of acquiring tuberculosis (TB), but existing infection control and occupational health policies often fall short of mitigating the risk of acquiring TB in the workplace. Health service failure to systematically offer... -
Genotypic variation and correlations between yield system traits and yield components in African landraces of bambara groundnut
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Olusanya C Alake --- Department of Plant Breeding and Seed Technology, Nigeria Moninuola A Ayo-Vaughan --- Department of Plant Breeding and Seed Technology, NigeriaGenetic information on a variety of traits contributing to grain yield is required to improve many crops. However, this information is lacking in bambara groundnut (Vigna subterranea (L.) Verdc.). To this end, 24 African bambara groundnut landraces were investigated for... -
Managing Global Innovation: Frameworks for Integrating Capabilities around the World
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Thomas Woodson --- Technology and Society, USA -
Identity integration across cultural transitions: Bridging individual and societal change
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Moin Syed --- Department of Psychology, USAIdentity research has proliferated in recent years creating a great need for theoretical clarity about the identity concept, and how to use this clarity to understand identities within specific contexts. The present article addresses this need by discussing theoretical aspects... -
“I am Malawian, Multicultural or British”: Remote acculturation and identity formation among urban adolescents in Malawi
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kim T. Ferguson --- Psychology Faculty, USA Yuna L. Ferguson --- Department of Psychology, USA Gail M. Ferguson --- Department of Human Development and Family Studies, USAWe aimed to better understand multidimensional remote acculturation to South African, United States of America (US), and United Kingdom (UK) cultures among 144 thirteen- to seventeen-year-old (M = 15 0.28, SD = 1.06; 43.1% female; 36.6% Black African, 23.9% Southeast... -
Identity experiences of black people in the Netherlands
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Renée Zonneveld --- Tilburg University, The Netherlands Susanne B. E. Brand --- Tilburg University and University of Groningen, The Netherlands Byron G. Adams --- Tilburg University, The Netherlands, and University of Johannesburg, South AfricaIn this study, we used the tri-dimensional model of identity and acculturation strategies to explore how black people living in the Netherlands define themselves. We used a qualitative survey design in which 14 participants (females = 8; age range 21... -
Obesity and kidney disease: hidden consequences of the epidemic
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Csaba P Kovesdy --- Division of Nephrology, Department of Medicine, United States Susan Furth --- Department of Pediatrics, United States Carmine Zoccali --- CNR – IFC Clinical Epidemiology and Pathophysiology of Renal Diseases and Hypertension, Italy [FN0001]Obesity has become a worldwide epidemic, and its prevalence has been projected to grow by 40% in the next decade. This increasing prevalence has implications for the risk of diabetes, cardiovascular disease and also for chronic kidney disease. A high... -
The Internationalization of African Small and Medium Enterprises (SMEs): A South-North Pattern
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Everlyne Misati --- Florida International University, USA Fred O. Walumbwa --- Florida International University, USA Somnath Lahiri --- Illinois State University, USA Sumit K. Kundu --- Florida International University, USADespite the growing internationalization of small and medium enterprises (SMEs) from Africa, related research remains limited. Adopting a qualitative approach, this study investigates three SMEs in the African coffee subsector that internationalized rapidly beyond the continent. The case studies, based... -
Combating Corruption with Care: Developing Ethical Leaders in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Paresh Mishra --- Indiana University–Purdue University, USA Saneta Maiko --- Indiana University Health, USA -
Experiences and Challenges of Women Leaders in Sub-Saharan Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Angela Titi Amayah --- Business Management Economics, USA MD Haque --- Managing Director, USAThere is little research on non-Western women managers and leaders in general, and on African women in particular. More attention could be given to influences that shape leadership experiences in order to better understand African women leadership practices. The purpose... -
Prospects and Challenges in Managing Africa’s Future: An Introduction
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Moses Acquaah --- Joseph M. Bryan School of Business and Economics, USA Moses N. Kiggundu --- Sprott School of Business, Canada -
Portfolio performance under reference-day risk
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Marcelo Gonzalez --- Universidad de Chile, Chile Arturo Rodriguez --- Universidad de Chile, Chile Roberto Stein --- College of Business Administration, USAReference-day risk has been previously identified as a type of sampling variation phenomenon, and its effect on the estimation of stock returns and their volatility and market betas has been documented. Using a dataset of daily equity mutual fund returns,... -
Socio-economic factors influencing marketing of non-timber forest products in tropical lowland rainforests of south-western Nigeria
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tajudeen O Amusa --- Department of Forest Resources Management, Nigeria S Oladunni Jimoh --- Department of Forest Resources Management, Nigeria Ismail O Azeez --- Department of Forest Resources Management, NigeriaA number of factors persist to constrain the non-timber forest products (NTFPs) market and, by extension, its potential to contribute meaningfully to livelihood development and poverty reduction objectives. To better utilise the potential of NTFPs, it is important to have... -
Inequalities involving the generating function for the number of partitions into odd parts
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Cristina Ballantine --- Department of Mathematics and Computer Science, USA Mircea Merca --- Department of Mathematics, RomaniaFibonacci numbers can be expressed in terms of multinomial coefficients as sums over integer partitions into odd parts. We use this fact to introduce a family of double inequalities involving the generating function for the number of partitions into odd... -
Temporal dynamics and relationship between climate, limnological variables and zooplankton composition in climate-sensitive Lake Bosumtwi, Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PO Sanful --- Department of Fisheries and Water Resources, School of Natural Resources, Ghana S Aikins --- Department of Theoretical and Applied Biology, Ghana E Frempong --- Department of Theoretical and Applied Biology, Ghana RI Hall --- Department of Biology, Canada RE Hecky --- Biology Department and Large Lakes Observatory, USAThe community composition and the factors affecting seasonal and interannual dynamics of zooplankton in Lake Bosumtwi were studied biweekly at a central index station during 2005 and 2006. The lake zooplankton community was species poor. Mesocyclops bosumtwii was numerically superior... -
Psychometric properties of the Ndetei–Othieno–Kathuku (NOK) Scale: A mental health assessment tool for an African setting
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Christy A. Denckla --- Harvard TC Chan School of Public Health, USA David M. Ndetei --- Africa Mental Health Foundation, Kenya Victoria N. Mutiso --- Africa Mental Health Foundation, Kenya Christine W. Musyimi --- Africa Mental Health Foundation, Kenya Abednego M. Musau --- Africa Mental Health Foundation, Kenya Eric S. Nandoya --- Africa Mental Health Foundation, Kenya Kelly K. Anderson --- Department of Epidemiology & Biostatistics, Canada Snezana Milanovic --- Boston University Medical Center, USA David Henderson --- Boston University Medical Center, USA Kwame McKenzie --- Department of Psychiatry, CanadaBackground: Research suggests that psychiatric conditions in children and adolescents are highly debilitating, with sparse resources for assessment and treatment in low- and middle-income countries (LMICs). -
Sheddable armour: identification of osteoderms in the integument of Geckolepis maculata (Gekkota)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Daniel J. Paluh --- , , USA Aaron H. Griffing --- , , USA Aaron M. Bauer --- , , USAOsteoderms are bony deposits that form within the dermal layer of skin in vertebrates. Within geckos, osteoderms are uncommon, only described in Gekko gecko and the genus Tarentola. A previous report of osteoderms in the Afro-Malagasy gekkonid genus Geckolepis has... -
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... -
Spectral properties of generalized eigenparameter dependent discrete Sturm-Liouville type equation
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Turhan Koprubasi --- Department of Mathematics, USA R.N. Mohapatra --- Department of Mathematics, USALet L denote the non-selfadjoint difference operator of second order with boundary condition generated in ℓ2 (ℕ) by -
Sustainable agriculture practices and livelihoods in pro-poor smallholder farming systems in southern Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Clifton Makate --- International Centre for Tropical Agriculture (CIAT), Zimbabwe Marshall Makate --- Department of Economics, USA Nelson Mango --- International Centre for Tropical Agriculture, UgandaClimate variability and change threaten and impact negatively on biodiversity, agricultural sustainability, ecosystems, and economic and social structures – factors that are all vital for human resilience and wellbeing. To cope with these challenges, embracing sustainability in food production is... -
On reading about Lola Fine’s night on the town
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Graeme Reid --- Lesbian, Gay, Bisexual and Transgender Rights Programme, USAThis is a commentary on Lindy-Lee Prince’s photographic essay about gender and drag featuring Cape Town performance artist Lola Fine. -
Community acceptability of minimally invasive autopsy (MIA) in children under five years of age in Soweto, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Nonhlanhla Ngwenya --- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, South Africa David Coplan --- Department of Anthropology, South Africa Susan Nzenze --- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, South Africa Nellie Myburgh --- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, South Africa Shabir Madhi --- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, South AfricaThis interdisciplinary study, using qualitative and ethnographic research methods, collected data from 330 men and women in Soweto, South Africa, in order to understand the community acceptability of minimally invasive autopsy (MIA) in children who died under five years of... -
Molecular identification of polydorid polychaetes (Annelida: Spionidae): is there a quick way to identify pest and alien species?
Item type: Journal Article • Journal: African Zoology • Authors: Lee-Gavin Williams --- Department of Botany and Zoology, South Africa Stephen A Karl --- University of Hawai‘i at Mānoa, Hawai‘i Institute of Marine Biology, USA Stanley Rice --- Department of Biology, USA Carol Simon --- Department of Botany and Zoology, South AfricaThe early detection and correct identification of polydorid polychaete species is essential as they are often encountered as invasive alien pests in aquaculture facilities or the intertidal where they may modify the ecosystem. Accurate identification is, however, often hampered by... -
Before Colonialism: Oral and Written Textualities in the Polyglotic Zone of the Horn of Africa: The Case of Tigrinya
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Ghirmai Negash --- English and Postcolonial Literatures, African Studies Program, USAIn recent postcolonial literary and cultural studies, there has been renewed interest in the history and vitality of African-language textualities of the pre-colonial era. This article explores new terrain, surveying and shedding light on some of the significant texts and... -
Analytical Review of African Agribusiness Competitiveness
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Suresh Chandra Babu --- International Food Policy Research Institute, USA Mahika Shishodia --- International Food Policy Research Institute, USAAgribusiness has a major role to play in the transformation of the agricultural sector in Africa. With the demand for high-value food products increasing across the world, there is an opportunity for an increase in income/employment through the production and... -
Spatial patterns and determinants of fertility levels among women of childbearing age in Nigeria
Item type: Journal Article • Journal: South African Family Practice • Authors: Oluwayemisi O Alaba --- Department of Statistics, Nigeria Olusanya E Olubusoye --- Department of Statistics, South Africa JO Olaomi --- Department of Statistics, South AfricaBackground: Despite aggressive measures to control the population in Nigeria, the population of Nigeria still remains worrisome. Increased birth rates have significantly contributed to Nigeria being referred to as the most populous country in Africa. This study analyses spatial patterns... -
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... -
Barriers and facilitators of antiretroviral therapy adherence in rural Eastern province, Zambia: the role of household economic status
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rainier Masa --- School of Social Work, USA Gina Chowa --- School of Social Work, USA Victor Nyirenda --- Global Social Development Innovations, USAIn Zambia, more people living with HIV now have access to lifesaving antiretroviral therapy than ever before. However, progress in HIV treatment and care has not always resulted in lower mortality. Adherence remains a critical barrier to treatment success. The... -
The dimensionality of disclosure of HIV status amongst post-partum women in Cape Town, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jo Hunter-Adams --- Health Economics Unit, Public Health and Family Medicine, South Africa Allison Zerbe --- ICAP, USA Tamsin Philips --- Centre for Infectious Diseases Epidemiology & Research, Public Health and Family Medicine, South Africa Zanele Rini --- Centre for Infectious Diseases Epidemiology & Research, Public Health and Family Medicine, South Africa Landon Myer --- Centre for Infectious Diseases Epidemiology & Research, Public Health and Family Medicine, South Africa Greg Petro --- Department of Obstetrics & Gynaecology, South Africa Elaine Abrams --- ICAP, Mailman School of Public Health and College of Physicians and Surgeons, USADisclosure of HIV status to sexual partners and others has been presented as positive health behaviour and is widely encouraged by antiretroviral treatment (ART) programmes, providers and policies. However, disclosure is also highly contextual and its positive effects are not... -
The relationship between Nairobi adolescents’ media use and their sexual beliefs and attitudes
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ann Neville Miller --- Nicholson School of Communication, USA William Kinnally --- Nicholson School of Communication, USA Hellen Maleche --- Communication Department, Kenya Nancy Achieng’ Booker --- Graduate School of Media and Communications, KenyaAdolescents in sub-Saharan Africa are at risk for contracting HIV. Although media campaigns have educated the population as a whole, few studies are available about the time sub-Saharan African youth spend listening to and viewing sexual messages via the entertainment... -
Partnership duration, concurrency, and HIV in sub-Saharan Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Larry Sawers --- Department of Economics, USA Alan Isaac --- Department of Economics, USAA widely accepted explanation for the exceptionally high HIV prevalence in sub-Saharan Africa is the practice of long-term overlapping heterosexual partnering. This article shows that long-duration concurrent partnering can be protective against HIV transmission rather than promoting it. Monogamous partnering... -
Cultural competence: a framework for promoting voluntary medical male circumcision among VaRemba communities in Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kemist Shumba --- Department of Science and Technology (DST)\-National Research Foundation (NRF) Centre of Excellence, Human Development, South Africa Musara Lubombo --- Centre for Communication, Media & Society, South AfricaAlmost a decade after the formal introduction of voluntary medical male circumcision (VMMC) as an important technology for HIV prevention, its implementation is still fraught with acceptability challenges. This is especially true among ethnic groups where male circumcision is conducted... -
Reticence in disclosure of HIV infection and reasons for bereavement: impact on perinatally infected adolescents’ mental health and understanding of HIV treatment and prevention in Johannesburg, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nataly Woollett --- Wits Reproductive Health and HIV Institute, South Africa Vivian Black --- Clinical Microbiology and Infectious Diseases, Faculty of Health Sciences, South Africa Lucie Cluver --- Centre for Evidence-Based Intervention, Department of Social Policy and Intervention, UK Heena Brahmbhatt --- Department of Population, Reproductive and Family Health, Bloomberg School of Public Health, USASurvival rates of perinatally infected HIV-positive adolescents (PIA) are increasing in sub-Saharan Africa. There is a gap in understanding how disclosure and bereavement have an impact on PIA beliefs and understanding of their HIV infection and its management. In-depth interviews... -
Appropriate technology and ethical obligations of the university: W.E.B. Du Bois on the Africana university mission
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: C. Verharen --- Department of Philosophy, USA G. Kadoda --- Independent Researcher, Sudan F. Bugarin --- Department of African Studies, USA J. Fortunak --- Department of Chemistry and Pharmaceutical Sciences, USA J. Tharakan --- Department of Chemical Engineering, USA D. Schwartzman --- Department of Biology (Professor Emeritus), USA E. Wensing --- Department of Human Development, USA G. Middendorf --- Department of Biology, USAWorking on the Encyclopedia Africana under the sponsorship of Kwame Nkrumah in Ghana, W.E.B. Du Bois reversed his conviction that only the ‘talented tenth’ could profit from a university education. He proposed that virtually all humans have a right to... -
Recommendations for the use of meningococcal vaccines in South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Susan Meiring --- Division of Public Health Surveillance and Response, South Africa Gregory Hussey --- Vaccines for Africa Initiative, Institute for Infectious Diseases and Molecular Medicine, South Africa Prakash Jeena --- Department of Paediatrics, South Africa Salim Parker --- General Practitioner, South African Society of Travel Medicine, South Africa Anne von Gottberg --- Centre for Respiratory Diseases and Meningitis, South AfricaBackground: Although meningococcal disease (MD) incidence in South Africa is low, Neisseria meningitidis (NM) causes severe disease that is often life-threatening and can cause long-term disabilities. A quadrivalent protein-conjugated meningococcal vaccine (MCV4) is available, and provides protection against 75% of... -
Grazing management that regenerates ecosystem function and grazingland livelihoods
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Richard Teague --- Department of Ecosystem Science and Management, USA Matt Barnes --- Shining Horizons Land Management LLC, USAAdopting a systems view and regenerative philosophy can indicate how to regenerate ecosystem function on commercial-scale agro-ecological landscapes. Adaptive multi-paddock grazing management is an example of an approach for grazinglands. Leading conservation farmers have achieved superior results in ecosystem improvement,... -
Biomass production and potential water stress increase with planting density in four highly productive clonal Eucalyptus genotypes
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Rodrigo Hakamada --- Forest Resources Graduate Program, ‘Luiz de Queiroz’ College of Agriculture, Brazil Robert M Hubbard --- US Department of Agriculture Forest Service, USA Silvio Ferraz --- Forest Sciences Department, ‘Luiz de Queiroz’ College of Agriculture, Brazil José Luiz Stape --- Department of Forestry and Environmental Resources, USA Cristiane Lemos --- International Paper do Brasil, BrazilThe choice of planting density and tree genotype are basic decisions when establishing a forest stand. Understanding the interaction between planting density and genotype, and their relationship with biomass production and potential water stress, is crucial as forest managers are... -
The End of Phenomenology
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Thomas Nenon --- Dean, College of Arts and Sciences, Professor of Philosophy, USA -
“Heidegger’s Biological Nietzsche”
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Joshua Rayman --- Philosophy Department, USAHeidegger’s lecture courses on Nietzsche give prominent attention to the question of what he calls “Nietzsche’s Alleged Biologism”. This biologism is what has been labelled the official Nazi reading of Nietzsche. Yet, there is no single Nazi reading of Nietzsche... -
Psychological health among Chinese college students: a rural/urban comparison
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Jie Zhang --- Department of Sociology, China Qing Qi --- Central University of Finance and Economics, China Robert P. Delprino --- Department of Psychology, USAThe literature on suicide among the Chinese indicates that younger individuals from rural areas are at higher risk of suicide than their urban counterparts. While earlier studies have investigated the relationship between psychological health and major demographic variables, the relationship... -
“We have heard it together”: a qualitative analysis of couple HIV testing and counselling recruitment in Malawi’s Option B+ programme
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nora E Rosenberg --- University of North Carolina Project, Malawi Rebecca Gross --- University of North Carolina Project, Malawi Tiwonge Mtande --- University of North Carolina Project, Malawi Suzanne Maman --- School of Public Health, USA Carol E Golin --- School of Medicine, USA Friday Saidi --- University of North Carolina Project, Malawi Olivia Manthalu --- University of North Carolina Project, Malawi Irving Hoffman --- University of North Carolina Project, Malawi Mina C Hosseinipour --- University of North Carolina Project, Malawi William C Miller --- University of North Carolina Project, MalawiEncouraging HIV-infected pregnant women to recruit male partners for couple HIV testing and counselling (CHTC) is promoted by the World Health Organization, but remains challenging. Formal strategies for recruiting the male partners of pregnant women have not been explored within... -
HIV antiretroviral medication stock-outs in Ghana: contributors and consequences
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rebecca A Poku --- The University of Texas Health Science Center at Houston School of Public Health, USA Adobea Yaa Owusu --- Institute of Statistical, Social, and Economic Research, University of Ghana, Ghana Patricia Dolan Mullen --- The University of Texas Health Science Center at Houston School of Public Health, USA Christine Markham --- The University of Texas Health Science Center at Houston School of Public Health, USA Sheryl A McCurdy --- The University of Texas Health Science Center at Houston School of Public Health, USADrug stock-outs are an unfortunate yet common reality for patients living in low and middle income countries, particularly in sub-Saharan Africa where trouble with consistent stock of antiretroviral medications (ARVs) continues. Our study takes a snapshot of this problem in... -
Experiences along the HIV care continuum: perspectives of Kenyan adolescents and caregivers
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Winnie K Luseno --- Pacific Institute for Research and Evaluation (PIRE), USA Bonita Iritani --- Pacific Institute for Research and Evaluation (PIRE), USA Susannah Zietz --- Pacific Institute for Research and Evaluation (PIRE), USA Suzanne Maman --- Department of Health Behavior and Health Education, USA Isabella I Mbai --- School of Nursing, Kenya Florence Otieno --- Kenya Medical Research Institute (KEMRI), Kenya Barrack Ongili --- Kenya Medical Research Institute (KEMRI), Kenya Denise Dion Hallfors --- Pacific Institute for Research and Evaluation (PIRE), USATo be effective, HIV programmes should be responsive to the unique needs of diverse groups of infected adolescents. We highlight a range of adolescent perspectives on HIV services, including those who acquired HIV perinatally or sexually and those who were... -
Phylogenetic tests of a Cercopithecus monkey hybrid reveal X-chromosomal polyphyly of C. cephus and emerging patterns in the cephus species group radiation
Item type: Journal Article • Journal: African Zoology • Authors: Anthony J Tosi --- Department of Anthropology, USAA captive Cercopithecus nictitans × C. cephus male was examined at loci on the X- and Y-chromosomes as a test of previously described phylogenetic methods for identifying hybrid Cercopithecus monkeys. The results confirm the reliability of such assays, indicating that... -
Genetic structure of wild and domesticated grasscutters (Thryonomys swinderianus) from south-western Nigeria
Item type: Journal Article • Journal: African Zoology • Authors: Oluwakayode M Coker --- Department of Wildlife and Ecotourism Management, Nigeria Abosede O Omonona --- Department of Wildlife and Ecotourism Management, Nigeria Olusegun A Fagbohun --- Department of Veterinary Microbiology and Parasitology, Nigeria Cortney Pylant --- Department of Wildlife Ecology and Conservation, USA James D Austin --- Department of Wildlife Ecology and Conservation, USAGrasscutter (Thryonomys swinderianus) is a large rodent distributed across sub-Saharan Africa that is highly valued as a source of protein. There has been little effort to evaluate the genetic structure of grasscutters despite long-term harvesting pressure and over 40 years... -
Corrigendum
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: IA Mendelssohn --- Department of Oceanography and Coastal Sciences, College of the Coast and Environment, USA -
Love matters: exploring conceptions of love in Rwanda and Swaziland and relationship to HIV and intimate partner violence
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Allison Ruark --- Department of Medicine, USA Erin Stern --- Department of Global Health and Development, UK Thandeka Dlamini-Simelane --- Institute for Health Measurement, Swaziland Marie Fidele Kakuze --- Independent Consultant, SwazilandHealth risks such as intimate partner violence (IPV) and HIV infection often occur within intimate sexual relationships, yet the study of love and intimacy is largely absent from health research on African populations. This study explores how women and men... -
Constrained relationship agency as the risk factor for intimate partner violence in different models of transactional sex
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rebecca Fielding-Miller --- Department of Medicine, USA Kristin Dunkle --- South African Medical Research Council, South AfricaWomen who engage in transactional sex are more likely to experience intimate partner violence (IPV) and are at higher risk of HIV. However, women engage in transactional sex for a variety of reasons and the precise mechanism linking transactional sex... -
A qualitative analysis of the barriers to antiretroviral therapy initiation among children 2 to 18 months of age in Swaziland
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Charisse V Ahmed --- Department of Epidemiology, USA Pauline Jolly --- Department of Epidemiology, USA Luz Padilla --- Department of Epidemiology, USA Musa Malinga --- Lusweti Institute for Health Development Communication, Kingdom of Swaziland Chantal Harris --- Department of Epidemiology, USA Nobuhle Mthethwa --- Swaziland National AIDS Program, Kingdom of Swaziland Inessa Ba --- Clinton Health Access Initiative, Kingdom of Swaziland Amy Styles --- Clinton Health Access Initiative, Kingdom of Swaziland Sarah Perry --- Baylor International Pediatric AIDS Initiative, Kingdom of Swaziland Raina Brooks --- Department of Epidemiology, USA Florence Naluyinda-Kitabire --- United Nations Children’s Fund (UNICEF), Kingdom of Swaziland Makhosini Mamba --- United Nations Children’s Fund (UNICEF), Kingdom of Swaziland Peter Preko --- President Emergency Plan for AIDS Relief, Kingdom of SwazilandHIV/AIDS remains one of the leading causes of death among children under 5 years old in Swaziland. Although studies have shown that early initiation of infants and children diagnosed with HIV on antiretroviral therapy (ART) significantly reduces mortality, many children... -
Legal responses to HIV and AIDS: lessons from Swaziland
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Musa N Shongwe --- University of Swaziland, SwazilandSince 1999, the HIV and AIDS epidemic in Swaziland has been declared a national disaster, and today HIV and AIDS still pose a great threat to the survival and development of Swaziland and its people. The impact of the pandemic... -
Empowering caregivers of orphans and vulnerable children in Swaziland
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Syloid Choice Makufa --- Pact, Swaziland Daisy Kisyombe --- Pact, Swaziland Nicole Miller --- Pact, Swaziland Nanette Barkey --- Pact, USAThis paper reports on the health and psychosocial impacts of a programme designed to economically empower female caregivers of orphans and vulnerable children (OVC). The results presented are from a cohort of 492 female caregivers who participated in savings groups... -
Foreword
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rebecca Fielding-Miller --- Department of Medicine, USA -
GPS tracking cattle as a monitoring tool for conservation and management
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Jennifer M Schieltz --- Department of Ecology and Evolutionary Biology, USA Sharon Okanga --- Department of Entomology, USA Brian F Allan --- Department of Entomology, USA Daniel I Rubenstein --- Department of Ecology and Evolutionary Biology, USAThe emergence of GPS technology has resulted in significant advances in the ease and flexibility of studying animal movement patterns, yet barriers remain to the widespread use of GPS units for animal tracking. Here, we developed a low-cost, logistically simple... -
Fishery benefits from exploiting spawning aggregations not solely dependent on enhanced fish density
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Robinson --- Australian Research Council (ARC) Centre of Excellence for Coral Reef Studies, Australia NAJ Graham --- Australian Research Council (ARC) Centre of Excellence for Coral Reef Studies, Australia A Grüss --- Department of Marine Biology and Ecology, Rosenstiel School of Marine and Atmospheric Science, USA C Gerry --- Seychelles Fishing Authority, Seychelles J Bijoux --- Seychelles Fishing Authority, SeychellesThe vulnerability of spawning aggregations to exploitation varies among fisheries as a result of differences in the population-density changes associated with this behaviour. However, vulnerability to fishing is also influenced by technology, environmental factors, and fish and fisher behaviours. Focusing... -
Thought experiments in personal identity: A dialogue with Beck, Wagner and Wilkes
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Alfonso Muñoz-Corcuera --- Department of Philosophy, USAIn a recent series of papers, Beck and Wagner have been arguing about the general role that thought experiments can play in the debate on personal identity, showing their disagreement about the famous criticisms that Wilkes’ launched against their use... -
Matolino’s misunderstanding of Menkiti’s African moral view of the person and community
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Polycarp Ikuenobe --- Department of Philosophy, USAI provide an exposition of Ifeanyi Menkiti’s view of communal ethics in terms of his conception of moral personhood vis-à-vis community, in order to defend him specifically against Bernard Matolino’s criticisms. Matolino argues that Menkiti’s view of communitarianism is a... -
Roundtable review: Another Death in Kenya
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Luise White --- University of Florida, USA -
Suicide behaviour among Guyanese orphans: identification of suicide risk and protective factors in a low- to middle-income country
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Ellen-ge D. Denton --- Department of Psychology, USA George J. Musa --- Global Psychiatric Epidemiology Group, Department of Psychiatry, USA Christina Hoven --- Global Psychiatric Epidemiology Group, Department of Psychiatry, USAObjective: Suicide is the leading cause of death among youth in Guyana, a low- and middle-income country (LMIC), which globally ranks first in female adolescent suicides over the last decade. Worldwide, Guyana has experienced the largest increase in youth suicide,... -
Invasion status of Florida bass Micropterus floridanus (Lesueur, 1822) in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OLF Weyl --- DST/NRF Research Chair in Inland Fisheries and Freshwater Ecology, South Africa MK Schirrmann --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa JS Hargrove --- Wildlife Ecology and Conservation Department, USA T Bodill --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa ER Swartz --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaLargemouth bass Micropterus salmoides are a popular North American angling species that was introduced into South Africa in 1928. To enhance the largemouth bass fisheries, Florida bass Micropterus floridanus were introduced into KwaZulu Natal, South Africa, in 1980. Knowledge on... -
Variation in the daily activity, movement and refugia of Critically Endangered geometric tortoises, Psammobates geometricus, in autumn and spring
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Brian T. Henen --- , , South Africa Ulric P. van Bloemestein --- , , South Africa Margaretha D. Hofmeyr --- , , South Africa Craig A. Weatherby --- , , USATo help assess habitat requirements of Critically Endangered geometric tortoises, we used thread-trailing to measure daily activity, movements and refugia of adult Psammobates geometricus in autumn and spring 2002. We found strong differences between seasons, and effects of weather, individuals... -
Making Sense of Africa's Emerging Digital Transformation and its Many Futures
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Bitange Ndemo --- School of Business, Kenya Tim Weiss --- Department of Management Science and Engineering, USADigital technologies have spread across the African continent at an inexorable pace. Widely cited data on adoption rates suggest that digital technologies are making their way into every facet of life in African societies — a broader change process cast... -
Wrong pedogenetic assumptions: a case study of the soils developed over talc in Southern Guinea Savanna of Nigeria using clay mineralogy
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Godwin A Ajiboye --- Department of Soil Science and Land Management, Nigeria JA Ogunwale --- Department of Agronomy, Nigeria James Talbot --- K/T Geoservices Inc., USA Samuel A Mesele --- Department of Soil Science and Land Management, NigeriaIt is often assumed that ultrabasic parent material leads to the formation of soils rich in 2:1 clays and dibasic cations. However, in a tropical environment with intense weathering, this assumption may not be true. To investigate this assumption soil... -
Fungi and insects associated with Euphorbia ingens die-off in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Johannes A van der Linde --- Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI), Faculty of Natural and Agricultural Sciences (NAS), South Africa Diana L Six --- College of Forestry and Conservation, Department of Ecosystem and Conservation Sciences, USA Michael J Wingfield --- Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI), Faculty of Natural and Agricultural Sciences (NAS), South Africa Jolanda Roux --- Department of Plant and Soil Sciences, FABI, NAS, South AfricaEuphorbia ingens, landmark succulent trees in savannas of South Africa, have been dying in large numbers over the last 10–15 years. Initial studies conducted in the Limpopo province of South Africa revealed a diverse group of biotic agents including fungi,... -
Modelling and performance of an automated small hybrid plant
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Samuel Ilupeju --- Discipline of Mechanical Engineering, Durban, South Africa Freddie Inambao --- Discipline of Mechanical Engineering, Durban, South Africa Yetunde Ilupeju --- Discipline of Mechanical Engineering, Durban, South Africa Taha Selim Ustun --- Electrical Engineering, Carnegie Mellon University, USASmall rivers that can generate useful quantities of electricity are freely and proportionally distributed in Africa. Thousands of potential sites are available in South Africa, capable of generating hundreds of megawatts. Small hydropower generation is not a new approach in... -
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... -
On cardinality bounds involving the weak Lindelöf degree
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Bella --- Department of Mathematics, Italy N. Carlson --- Department of Mathematics, USAWe give a general closing-off argument in Theorem 2.3 from which several corollaries follow, including (1) if X is a locally compact Hausdorff space then |X| ≤ 2wL(X)ψ(X), and (2) if X is a locally compact power homogeneous Hausdorff space... -
The persistence of firm-specific post-earnings announcement returns
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Dong Hyun Son --- College of Business, Korea Dan Palmon --- Department of Accounting and Information System, New Jersey Ari Yezegel --- Department of Accountancy, USAThis paper examines whether estimates of post-earnings-announcement returns derived from the historical firm-specific relation between earnings and returns help predict future post-earnings-announcement returns. We find that firms with historically high post-earnings announcement returns continue to exhibit high post-earnings announcement returns... -
Fluoroquinolone-resistant Salmonella typhi infection: a report of two cases in South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: N Schellack --- School of Pharmacy, South Africa E Bronkhorst --- School of Pharmacy, South Africa C Maluleka --- Department of Microbiology, South Africa L Hunt --- The Ohio State University Wexner Medical Center, USA P Srinivas --- The Ohio State University Wexner Medical Center, USA W Grootboom --- School of Pharmacy, South Africa D Goff --- The Ohio State University Wexner Medical Center, USA P Naicker --- School of Pharmacy, South Africa T Modau --- School of Pharmacy, South Africa O Babarinde --- School of Pharmacy, South AfricaTyphoid and paratyphoid fever are acute, life-threatening febrile illnesses caused by systemic infection with the bacterium Salmonella enterica. Nineteen cases were reported in South Africa in 2016. We report on two cases of bacteraemic invasive S. typhi with fluoroquinolone resistance. -
AIDS and Masculinity in the African City: Privilege, Inequality, and Modern Manhood
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Percy Mdunge --- Sociology Department, USA -
Exploring dual disclosures for men who have sex with men in Mpumalanga, South Africa: a report from the field
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joseph Daniels --- Lehman College, USA Tim Lane --- University of California San Francisco, USA Kabelo Maleke --- Anova Health Institute, South Africa Wini Mogos --- University of California Irvine, USA Ryan Assaf --- University of California Irvine, USA Helen Struthers --- Anova Health Institute, South Africa James McIntyre --- Anova Health Institute, South Africa Tom Coates --- University of California Los Angeles, USAWe explored to whom rural men who have sex with men (MSM) disclose their sexual identity and HIV status in Mpumalanga, South Africa. Participants were recruited using a modified snowball sampling method in order to complete a questionnaire. Descriptive and... -
Estimating risk factors for HIV infection among women in Mozambique using population-based survey data
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sara S Dias --- EpiDoC Unit, Centro de Estudos de Doenças Crónicas da NOVA Medical School, Portugal Francisco Mbofana --- Ministry of Health, Mozambique Sheyla R Cassy --- Departamento de Matemática e Informática, Faculdade de Ciências, Mozambique Sónia Dias --- Instituto de Higiene e Medicina Tropical, Portugal Gonçalo F Augusto --- Instituto de Higiene e Medicina Tropical, Portugal Victor Agadjanian --- Center of Population Dynamics, USA Maria R O Martins --- Instituto de Higiene e Medicina Tropical, PortugalThe use of population-based survey data together with sound statistical methods can enhance better estimation of HIV risk factors and explain variations across subgroups of the population. The distribution and determinants of HIV infection in populations must be taken into... -
How millennials perceive leisure luxury hotels in a sharing economy?
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Andy Heyes --- Hotel Management School, The Netherlands Ajay Aluri --- College of Business and Economics, USAThe introduction of both the experience and sharing economies can potentially be seen to be the start of a new type of luxury accommodation, but is that really true? The generation best adapted to such changes, who are also the... -
Contemporary virtue ethics and action-guiding objections
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: F. Scott McElreath --- Humanities Department, USAMany defenders of contemporary virtue ethics contend that it directly competes with modern ethical theories such as consequentialism and deontology. One of the most common responses is that contemporary virtue ethics does not compare well because its proponents fail to... -
The forcing number of graphs with given girth
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Randy Davila --- Department of Mathematics and Statistics, USA Michael A. Henning --- Department of Pure and Applied Mathematics, South AfricaIn this paper, we study a dynamic coloring of the vertices of a graph G that starts with an initial subset S of colored vertices, with all remaining vertices being non-colored. At each discrete time interval, a colored vertex with... -
Intraspecific cleaning by juvenile Cape white seabream Diplodus capensis (Sparidae) off eastern South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PC Sikkel --- Department of Biological Sciences and Environmental Sciences Program, USA NJ Smit --- Water Research Group, Unit for Environmental Sciences and Management, South AfricaJuveniles of the Cape white seabream Diplodus capensis were observed cleaning adult conspecifics in a large tidepool off Sodwana Bay, South Africa. Although nine other tropical fish species were present and interacted with a nearby pair of Labroides cleaner wrasses,... -
Terrestrial discharge influences microbioerosion and microbioeroder community structure in coral reefs
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SA Mwachireya --- Kenya Marine and Fisheries Research Institute (KMFRI), Kenya M Carreiro-Silva --- Department of Oceanography and Fisheries (IMAR network), Portugal BE Hartwick --- Department of Biological Sciences, Canada TR McClanahan --- Wildlife Conservation Society, Marine Programs, USAMicrobioerosion rates and microbioeroder community structure were studied in four Kenyan protected coral-reef lagoons using shell fragments of Tridacna giant clams to determine their response to the influence of terrestrial run-off. Fourteen different microbioeroder traces from seven cyanobacteria, three green... -
Use of diatom indices to categorise impacts on and recovery of a floodplain system in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: R Musa --- Department of Zoology, South Africa R Greenfield --- Department of Zoology, South AfricaThe trophic status of the Ramsar-accredited Nyl River floodplain, which is stressed by sewage treatment effluents, and its ability to restore normal conditions, were assessed in 2014–2015 using diatoms as biological indicators. The Trophic Diatom Index, Specific Pollution Sensitivity Index... -
Catalyzing Social Entrepreneurship in Africa: Roles for Western Universities, NGOs and Corporations
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Philip Mirvis --- Global Network on Corporate Citizenship, USA Bradley Googins --- Center for Corporate Citizenship at Boston College, USAThis article reviews research on promoting social entrepreneurship and enterprise in Africa. It also presents brief case studies on how select Western universities, NGOs and corporations are partnering with African institutions to help train and launch social entrepreneurs, to open... -
Managing Culture and Money: Some Critical Issues Facing African Management and Managers
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Nicolas Papadopoulos --- Sprott School of Business, Canada Charles Blankson --- Department of Marketing, Logistics, and Operations Management, College of Business, USA -
Frolík decompositions for lattice-ordered groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Gerard Buskes --- Department of Mathematics, USA R.H. Redfield --- Department of Mathematics, USAFrolík’s theorem says that a homeomorphism from a certain kind of topological space to itself decomposes the space into the clopen set of fixed points together with three clopen sets, each of whose images is disjoint from the original set... -
An assessment of South African college and university dining policies and procedures regarding handling of food allergies
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Gerrie E du Rand --- Department of Consumer Science, South Africa Lakshman Rajagopal --- Iowa State University, USA -
Conceptions of love in Ghana: An exploration among Ghanaian Christians
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Annabella Osei-Tutu --- Department of Psychology, Ghana Vivian A. Dzokoto --- Department of African American Studies, USA Katja Hanke --- Survey Design and Methodology, Germany Glenn Adams --- Department of Psychology, USA Faye Z. Belgrave --- Department of Health Psychology, USAWe explored conceptions of love from the perspective of Ghanaian Christians. Using an ethnographic approach, we interviewed 61 participants (males = 39; females = 22; age range 20 to 70) on their understanding and experiences of love in the context... -
Predicting staff retention from employee motivation and job satisfaction
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Michelle De Sousa Sabbagha --- Department of Industrial and Organisational Psychology, South Africa Ophillia Ledimo --- Department of Industrial and Organisational Psychology, South Africa Nico Martins --- Department of Industrial and Organisational Psychology, South AfricaThis study investigated the role of employee motivation and job satisfaction as predictors of staff retention in a foreign exchange bank. Participants were 341 employees of a South African foreign exchange bank division (female = 62.8%; black = 31.1%; managers = 37%, mean years of experience = 10... -
Community reintegrating former child soldiers in Northern Uganda: A qualitative study on the road to recovery
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: James M. Van Leeuwen --- Global Livingston Institute, USA Laurie Miller --- Cornell Institute for Public Affairs, USA Maira Zamir --- Cornell Institute for Public Affairs, USA Ryan Grundy --- Global Livingston Institute, USA Jerry Amanya --- Global Livingston Institute, USA Clifford Chen --- Cornell Institute for Public Affairs, USA Michael Feinberg --- Africa Program, Woodrow Wilson International Center for Scholars, USAThis study aimed to profile the qualities of a holistic community reintegration program for former child soldiers (FCS) in the Lira region of Northern Uganda. Informants were a convenience sample of 37 FCS (age range 17 to 34, mean age... -
Nesting biology and food habits of the endangered Sakalava Rail Amaurornis olivieri in the Mandrozo Protected Area, western Madagascar
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Yverlin Z Pruvot --- The Peregrine Fund Madagascar Project, Madagascar Lily-Arison René de Roland --- The Peregrine Fund Madagascar Project, Madagascar Gilbert Razafimanjato --- The Peregrine Fund Madagascar Project, Madagascar Marius PH Rakotondratsima --- The Peregrine Fund Madagascar Project, Madagascar Aristide Andrianarimisa --- Department of Zoology and Biodiversity, Faculty of Science, Madagascar Russell Thorstrom --- The Peregrine Fund, USAWe studied the nesting biology and food habits of the endangered and endemic Sakalava Rail Amaurornis olivieri from July to November 2015 in the Mandrozo Protected Area, western Madagascar. Three nesting pairs were observed and their nests were constructed in... -
Madagascar Fish Eagle productivity in the Tsimembo-Manambolomaty Protected Area and surrounding habitat of western Madagascar
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Gilbert Razafimanjato --- The Peregrine Fund Madagascar Project, Madagascar Lily-Arison René de Roland --- The Peregrine Fund Madagascar Project, Madagascar Marius Rakotondratsima --- The Peregrine Fund Madagascar Project, Madagascar Stephanie Razakaratrimo --- The Peregrine Fund Madagascar Project, Madagascar Yverlin ZM Pruvot --- The Peregrine Fund Madagascar Project, Madagascar Tsiresy M Razafimanantsoa --- Mention: Zoologie et Biodiversité Animale, Facultés des Sciences, Madagascar Aristide Andrianarimisa --- The Peregrine Fund Madagascar Project, Madagascar Russell Thorstrom --- The Peregrine Fund, USAWe monitored the productivity of the critically endangered Madagascar Fish Eagle Haliaeetus vociferoides inside and outside of the Tsimembo-Manambolomaty Protected Area (T-M PA), western Madagascar from 2010 to 2015. We recorded 14 breeding pairs inside and 13 outside T-M PA... -
Retention of the flight-adapted avian finger-joint complex in the Ostrich helps identify when wings began evolving in dinosaurs
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Joel D Hutson --- Department of Biological Sciences, USA Kelda N Hutson --- Earth Science, USAThe functional anatomies of avian finger joints have never been compared with those of the basal avian Archaeopteryx lithographica or maniraptoran theropod dinosaurs. These startling oversights are due to unfamiliarity of the joints outside of highly specialised studies of bird-wing... -
Assessing the impacts of domesticated versus wild ungulates on terrestrial small mammal assemblages at Telperion Nature Reserve, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Bonginkosi C Gumbi --- Department of Biological Sciences, Swaziland Julie T Shapiro --- Department of Wildlife Ecology and Conservation, School of Natural Resources and the Environment, USA Themba Mahlaba --- Department of Biological Sciences, Swaziland Robert McCleery --- Department of Wildlife Ecology and Conservation, School of Natural Resources and the Environment, USA Duncan MacFadyen --- Department of Research and Conservation, E Oppenheimer and Sons, Marshalltown, South Africa Ara Monadjem --- Department of Biological Sciences, SwazilandGrazing by large mammals alters vegetation physiognomy, consequently changing habitat suitability for small mammal communities. We investigated the response of terrestrial small mammals to grazing by wild and domesticated ungulates at the boundary of a protected area (Telperion Nature Reserve)... -
A phylogeny and genus-level revision of the African file snakes Gonionotophis Boulenger (Squamata: Lamprophiidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Donald G. Broadley --- , Zimbabwe Krystal A. Tolley --- , South Africa Werner Conradie --- , South Africa Sarah Wishart --- , South Africa Jean-François Trape --- , Senegal Marius Burger --- , , South Africa Chifundera Kusamba --- , , République Démocratique du Congo Ange-Ghislain Zassi-Boulou --- , République du Congo Eli Greenbaum --- , , USAThe sub-Saharan African file snake genus Gonionotophis is currently comprised of 15 species. However, the concept of this genus has been confounded by morphological and genetic differences between the constituent taxa. Due to the dearth of DNA samples, a taxonomic... -
Quality Assurance of Business Management Education in Africa: A Review of Current Systems and Recommendations for Quality Enhancements
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Eunice V. Akoto --- School of Business, USA Edward O. Akoto --- School of Business, USAQuality assurance systems – the collections of policies, procedures, and practices for achieving and maintaining quality – are critical to ensuring the relevance and effectiveness of business and management education in Africa. Currently, stakeholders may assess the quality of business... -
Deceptive jugular manometry, blood colour and Po2 in the presence of an ipsilateral upper extremity arteriovenous fistula: a report of two cases
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: David M Corda --- Department of Anesthesiology, USA Stephen Aniskevich III --- Department of Anesthesiology and Perioperative Medicine, USAManometry, blood gas analysis and colour of blood are often used as adjuncts to verify central venous access and rule out inadvertent arterial puncture. Several clinical scenarios may make these techniques unreliable. Two cases are presented involving patients with mature... -
Perceptions of rural school mental health services: a focus group study
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Amy D Habeger --- Division of Behavioral Health, USA Kimberly S van Vulpen --- Department of Social Work, USA Teresa F Simmons --- Department of Social Work, USAThe presence of emotional or behavioural disorders has an impact on academic achievement. Access to behavioural health services is a challenge, particularly in rural communities. School-based mental health services have been recognised as an effective means of addressing the needs... -
Effects of psycho-education plus basic cognitive behavioural therapy strategies on medication-treated adolescents with depressive disorder in Nigeria
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Ehimwenma W Isa --- Child and Adolescent Unit, Nigeria Cornelius Ani --- Centre for Mental Health, UK Tolulope Bella-Awusah --- Centre for Child and Adolescent Mental Health, Nigeria Olayinka Omigbodun --- Centre for Child and Adolescent Mental Health, NigeriaObjective: Limited data exists on psychological interventions for adolescent depression in African countries such as Nigeria. This study therefore investigates the effects of a psychological intervention that includes psycho-education and basic elements of cognitive behavioural therapy (CBT) on depressed medication-treated... -
An SS ANOVA (Smoothing Spline Analysis of Variance) study of high tone lowering in Tsua
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Timothy K. Mathes --- Department of Linguistics, USA Andy Monthusi Chebanne --- Faculty of Humanities, BotswanaThis article examines the acoustic phonetic properties of consonant-tone interaction in the Khoisan language, Tsua, using speech production data from original field research in Botswana. The Tsua tonal melodies with Fundamental Frequency (F0) shapes having the most extreme excursions are... -
Testing of developed Food Based Dietary Guidelines for the elderly in South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: CE Napier --- Food and Nutrition, South Africa WH Oldewage-Theron --- Department of Nutritional Sciences, USA HH Grobbelaar --- Food and Nutrition, South AfricaThe purpose of this paper is to describe the process of the testing of the Elderly Food Based Dietary Guidelines (EFBDGs). Following a literature review, stakeholder discussions and revision, preliminary English EFBDGs were proposed and circulated to an expert panel... -
Seroprevalence of onchocerciasis in Ogun State, Nigeria after ten years of mass drug administration with ivermectin
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: OA Surakat --- Department of Pure and Applied Zoology, College of Biosciences, Nigeria SO Sam-Wobo --- Department of Pure and Applied Zoology, College of Biosciences, Nigeria T De Los Santos --- Programme for Appropriate Technology in Health (PATH, USA D Faulx --- Programme for Appropriate Technology in Health (PATH, USA A Golden --- Programme for Appropriate Technology in Health (PATH, USA K Ademolu --- Department of Pure and Applied Zoology, College of Biosciences, Nigeria L Yokobe --- Programme for Appropriate Technology in Health (PATH, USA MA Adeleke --- Department of Biological Sciences, Nigeria SO Bankole --- Department of Pure and Applied Zoology, College of Biosciences, Nigeria ON Adekunle --- Department of Plant Science and Applied Zoology, Nigeria WA Abimbola --- Department of Plant Science and Applied Zoology, Nigeria CF Mafiana --- Deputy Executive Secretary’s Office, NigeriaBackground: This serological study conducted between March and July 2015 investigated the status of onchocerciasis in Ogun State, Nigeria after a decade of mass drug administration (MDA) with ivermectin. Baseline information from the rapid epidemiological mapping of onchocerciasis (REMO) prior... -
Farm household typology and adoption of climate-smart agriculture practices in smallholder farming systems of southern Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Clifton Makate --- International Centre for Tropical Agriculture (CIAT), Zimbabwe Marshall Makate --- Department of Economics, USA Nelson Mango --- International Centre for Tropical Agriculture, UgandaEnhancing adoption rates of climate-smart agriculture practices and their impact on livelihoods requires promotional persistence, complemented by a thorough socioeconomic analysis that recognizes the heterogeneity of smallholder farmers. Farm typologies are a useful tool to assist in understanding and unpacking... -
Mozambican immigrants to South Africa: Their xenophobia and discrimination experiences
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Miriam Moagi --- Department of Nursing Science, Faculty of Health Sciences, South Africa Gail Wyatt --- Department of Psychiatry and Bio-behavioral Sciences, USA Maboe Mokgobi --- Faculty of Social and Health Sciences, South Africa Tamra Loeb --- Department of Psychiatry and Bio-behavioral Sciences, USA Muyu Zhang --- Department of Psychiatry and Bio-behavioral Sciences, USA Mashudu Davhana-Maselesele --- North-West University, South AfricaWe explored Mozambican immigrants’ lived experiences of xenophobia and discrimination in South Africa. Informants were 15 Mozambican immigrants (female = 7, male = 8) living in an informal settlement in Zandspruit, Gauteng Province. They completed open-ended written narratives on xenophobic... -
The use of field and artificial freezing studies to assess frost tolerance in natural populations of Pinus oocarpa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Lizette de Waal --- Forestry Division, South Africa R Glen Mitchell --- Kuching, Malaysia Gary R Hodge --- Camcore, Department of Forestry and Environmental Resources, USA Paxie W Chirwa --- Department of Plant and Soil Sciences, South AfricaThe susceptibility of Pinus oocarpa to freezing temperatures limits the commercial deployment of the highly productive Pinus patula × P. oocarpa hybrid in South Africa. Identifying P. oocarpa germplasm with increased frost tolerance is important. Twenty-three P. oocarpa provenances, originating... -
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... -
Psychosocial characteristics of primary care-seeking long-distance truck drivers in Kenya and associations with HIV testing
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Matthew L Romo --- Department of Epidemiology and Biostatistics & Institute for Implementation Science in Population Health, CUNY Graduate School of Public Health and Health Policy, USA Gavin George --- Health Economics and HIV and AIDS Research Division, South Africa Joanne E Mantell --- HIV Center for Clinical and Behavioral Studies, Department of Psychiatry, Division of Gender, Sexuality, and Health, USA Eva Mwai --- North Star Alliance, Kenya Eston Nyaga --- North Star Alliance, Kenya Jacob O Odhiambo --- North Star Alliance, Kenya Kaymarlin Govender --- Health Economics and HIV and AIDS Research Division, South Africa Elizabeth A Kelvin --- Department of Epidemiology and Biostatistics & Institute for Implementation Science in Population Health, CUNY Graduate School of Public Health and Health Policy, USAThe 90-90-90 strategy from the Joint United Nations Programme on HIV/AIDS (UNAIDS) to end the AIDS epidemic by 2020 includes, as its first goal, to have 90% of all people living with HIV to know their status. Achieving this goal... -
Healthcare providers’ understanding of HIV serodiscordance in South Africa and Uganda: implications for HIV prevention in sub-Saharan Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ross Greener --- MatCH Research (Maternal, Adolescent, and Child Health Research) Unit, Department of Obstetrics and Gynaecology, Faculty of Health Sciences, South Africa Cecilia Milford --- MatCH Research (Maternal, Adolescent, and Child Health Research) Unit, Department of Obstetrics and Gynaecology, Faculty of Health Sciences, South Africa Francis Bajunirwe --- Mbarara University of Science and Technology, Uganda Faith N Mosery --- MatCH Research (Maternal, Adolescent, and Child Health Research) Unit, Department of Obstetrics and Gynaecology, Faculty of Health Sciences, South Africa Claudia K Ng --- Harvard T.H. Chan School of Public Health, USA Rachel Rifkin --- Massachusetts General Hospital, Center for Global Health and Division of Infectious Disease, USA Jasmine Kastner --- McGill University Research Centre, Canada Lavanya Pillay --- MatCH Research (Maternal, Adolescent, and Child Health Research) Unit, Department of Obstetrics and Gynaecology, Faculty of Health Sciences, South Africa Angela Kaida --- Simon Fraser University, Canada David R Bangsberg --- Massachusetts General Hospital, Center for Global Health and Division of Infectious Disease, USA Jennifer A Smit --- MatCH Research (Maternal, Adolescent, and Child Health Research) Unit, Department of Obstetrics and Gynaecology, Faculty of Health Sciences, South Africa Lynn T Matthews --- Massachusetts General Hospital, Center for Global Health and Division of Infectious Disease, USAHIV transmission within stable heterosexual HIV serodiscordant couples accounts for almost half the new incident infections in South Africa and Uganda. Advances in HIV prevention provide opportunities to reduce transmission risk within serodiscordant partnerships (e.g., antiretroviral treatment (ART), pre-exposure prophylaxis... -
Poverty as a barrier to antiretroviral therapy access for people living with HIV/AIDS in Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Markus Haacker --- Harvard TH Chan School of Public Health, USA Charles Birungi --- UNAIDS, BotswanaUnderstanding barriers to access to essential health services is critical for devising effective strategies to improve access and align such strategies with national health and development policy objectives. However, while considerable empirical evidence exists on correlates of HIV prevalence and... -
Barriers to antiretroviral therapy initiation for HIV-positive children aged 2–18 months in Swaziland
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Pauline Jolly --- University of Alabama at Birmingham School of Public Health, USA Luz A Padilla --- University of Alabama at Birmingham School of Public Health, USA Charisse Ahmed --- University of Alabama at Birmingham School of Public Health, USA Chantal Harris --- University of Alabama at Birmingham School of Public Health, USA Nobuhle Mthethwa --- Swaziland National AIDS Programme, National Pediatric HIV Care & Treatment Office, Swaziland Megha Jha --- University of Alabama at Birmingham School of Public Health, USA Inessa Ba --- Clinton Health Access Initiative, Swaziland Amy Styles --- Eureka Idea Company, Australia Sarah P Hope --- Baylor International Pediatric AIDS Initiative, Swaziland Raina Brooks --- University of Alabama at Birmingham School of Public Health, USA Florence Naluyinda-Kitabire --- United Nations Children’s Fund (UNICEF), Swaziland Makhosini Mamba --- United Nations Children’s Fund (UNICEF), Swaziland Peter Preko --- President Emergency Plan for AIDS Relief (PEPFAR), SwazilandAlthough early antiretroviral therapy (ART) reduces HIV-related mortality in children by up to 75%, almost half of HIV-positive children younger than 1 year old in Swaziland do not initiate ART. This study was conducted to identify barriers to early ART... -
Evaluation of satellite retrievals of water quality parameters for Lake Victoria in East Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Gidudu --- Department of Geomatics and Land Management, Uganda R Mugo --- Regional Centre for Mapping Resource for Development, Nairobi Kenya L Letaru --- Department of Geomatics and Land Management, Uganda J Wanjohi --- Regional Centre for Mapping Resource for Development, Nairobi Kenya R Nakibule --- Department of Geomatics and Land Management, Uganda E Adams --- Earth System Science Centre–University of Alabama in Huntsville, USA A Flores --- Earth System Science Centre–University of Alabama in Huntsville, USA B Page --- Earth System Science Centre–University of Alabama in Huntsville, USA W Okello --- National Fisheries Resources Research Institute, UgandaLake Victoria in East Africa is a major ecosystem, whose size and importance has warranted the exploration of MODIS imagery to provide continuous and accurate water quality information. To this effect, two sea expeditions (in November 2014 and February 2015)... -
Commutative L*-rings II
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jingjing Ma --- Department of Mathematics, USA Yichuan Yang --- Department of Mathematics, ChinaIt is shown that for several important classes of commutative rings, L∗ and O∗ are equivalent. In particular, a commutative artinian ring is L∗ if and only if it is O∗. More examples of O∗-fields are provided. -
The impact of internal service quality on job satisfaction in the hotel industry
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Mukhles M. Al-Ababneh --- Department of Hotel and Tourism Management, Jordan Mousa A. Masadeh --- Department of Hotel and Tourism Management, Jordan Firas J. Al-Shakhsheer --- Department of Hotel and Tourism Management, Jordan Ma’moun A. Habiballah --- Department of Hotel and Tourism Management, JordanService quality is a key factor for success in any hotel. Many researchers have conducted studies on service quality, but only a few studies have been conducted on internal service quality (ISQ) in general, and in the hotel industry in... -
Typhoid ileal perforation in a semi-urban tertiary health institution in north-eastern Nigeria
Item type: Journal Article • Journal: South African Family Practice • Authors: BA Grema --- Family Medicine Department, Aminu Kano Teaching Hospital Kano, Nigeria I Aliyu --- Paediatric Department, Aminu Kano Teaching Hospital, Nigeria GC Michael --- Family Medicine Department, Aminu Kano Teaching Hospital Kano, Nigeria A Musa --- Surgery Department, Federal Medical Center Nguru, Nigeria AG Fikin --- Family Medicine Department, Federal Medical Center Nguru, Nigeria BM Abubakar --- Surgery Department, Federal Medical Center Nguru, Nigeria S Olusegun --- Surgery Department, Federal Medical Center Nguru, NigeriaIntroduction: Typhoid ileal perforation is a very serious complication of typhoid fever and remains a significant surgical problem in developing countries like Nigeria, where it is associated with higher mortality and morbidity, due to lack of adequate clean drinking water,... -
Sexual risk behaviour among HIV-infected women in the first twelve months after delivery in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Geoffrey Setswe --- HIV/AIDS Management, South Africa Gladys Matseke --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Shandir Ramlagan --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Stephen M. Weiss --- Department of Psychiatry and Behavioural Sciences, USA Violeta J. Rodriguez --- Department of Psychiatry and Behavioural Sciences, USA Sibusiso Sifunda --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Ryan Cook --- Department of Epidemiology, USA Tae Kyoung Lee --- Department of Public Health Sciences, USA Deborah Jones --- Department of Psychiatry and Behavioural Sciences, USAThis study aimed to assess sexual risk behaviour and its social correlates in HIV-infected women living in rural South Africa at six and twelve months post-partum. Participants were 699 HIV-positive women recruited prenatally by systematic sampling from twelve community health... -
Underage drinking as a predictor of alcohol use disorder among African Americans
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Euchay Ngozi Horsman --- School of Counseling, Human Performance, and Rehabilitation, College of Education and Health Professions, USAThis study aimed to examine the effect of underage drinking (UD) on alcohol use disorder (AUD) among African Americans. Data from the 2010 National Survey of Drug Use and Health (NSDUH) (N = 19 240; age range 25–75 years) were... -
First records of marine tardigrades (Arthrotardigrada) from Fuerteventura (Canary Islands, Spain)
Item type: Journal Article • Journal: African Zoology • Authors: Łukasz Kaczmarek --- Department of Animal Taxonomy and Ecology, Poland Paul Bartels --- Department of Biology, Warren Wilson College, USA Milena Roszkowska --- Department of Animal Taxonomy and Ecology, PolandMarine tardigrades are very poorly known and up to now only c. 200 taxa have been reported around the world (mostly from European coasts). In a marine algae sample, collected on the coast of Fuerteventura island (Atlantic Ocean, Canary Islands),... -
Carotenoid-based plumage pigmentation and concentration as a function of sex and habitat type in the Yellow-breasted Boubou Laniarius atroflavus
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: S Temidayo Osinubi --- School of Biological Sciences, New Zealand Kevin J McGraw --- School of Life Sciences, USA Ulf Ottosson --- AP Leventis Ornithological Research Institute, University of Jos, Nigeria Jennifer A Brown --- School of Mathematics and Statistics, New Zealand James V Briskie --- School of Biological Sciences, New Zealand Hazel M Chapman --- School of Biological Sciences, New ZealandThe study of avian integumentary colouration can offer insight into dietary and metabolic processes as well as fitness in focal species. Yet, we know relatively less about the system of feather colouration in African birds in comparison to Europe, North... -
Surgical outcomes in eastern Uganda: a one-year cohort study
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A Hewitt-Smith --- Faculty of Health Sciences, Uganda F Bulamba --- Faculty of Health Sciences, Uganda C Olupot --- Mbale Regional Referral Hospital, Uganda F Musana --- Faculty of Health Sciences, Uganda JP Ochieng --- Faculty of Health Sciences, Uganda MS Lipnick --- Department of Anesthesia and Perioperative Care, USA RM Pearse --- Barts and The London School of Medicine & Dentistry, UKIntroduction: There is urgent need to improve access to safe surgical treatments for patients in low- and middle-income countries (LMICs). However, few data exist to characterise clinical outcomes for this patient population. -
Siméon Rajaona on Western ways of thinking and the authentic Malagasy mind
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Graziella Masindrazana --- Department of Anglophone Studies, Madagascar Zoly Rakotoniera --- Department of Anglophone Studies, Madagascar Casey Woodling --- Department of Philosophy and Religious Studies, USAIn two papers early in his career, Siméon Rajaona – one of Madagascar’s most famous intellectuals – argues that Westerners have tended to distort the Malagasy worldview by interpolating Western notions into their understanding of it. As a result, the... -
The development of anxiety symptomatology among juvenile offenders: the roles of maternal substance abuse and unemployment
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Thomas W Wojciechowski --- Department of Sociology and Criminology & Law, University of Florida, USAThis research examined the development of anxiety across adolescence and early adulthood among a sample of juvenile offenders comprising males and females. In addition, despite the understanding of maternal substance abuse and maternal unemployment as risk factors predicting development of... -
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... -
Dunford-Pettis like properties on tensor products
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ioana Ghenciu --- Mathematics Department, USAIn this paper we study equivalent formulations of the DP∗ Pp (1 < p < ∞). We show that X has the DP∗ Pp if and only if every weakly-p-Cauchy sequence in X is a limited subset of X. We... -
Comment on ‘Cell phone use and ill health: is there a definite relationship?’
Item type: Journal Article • Journal: South African Family Practice • Authors: SMJ Mortazavi --- Fox Chase Cancer Center, USA SAR Mortazavi --- School of Medicine, IranProf Gboyega A Ogunbanjo, in his editorial entitled ‘Cell phone use and ill health: is there a definite relationship?’, published in South African Family Practice, has addressed the possible link between mobile phone use and adverse health effects such as... -
A content analysis of online news media reporting on the human papillomavirus vaccination programme in South Africa
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Sharon Attipoe-Dorcoo --- Health Science Center, School of Public Health, University of Texas, USA Vedantha Singh --- Cancer Research Initiative, University of Cape Town, South Africa Jennifer Moodley --- Cancer Research Initiative, University of Cape Town, South AfricaBackground: Cervical cancer is the leading cause of cancer-related deaths among females in South Africa. In 2014 South Africa launched a national human papillomavirus (HPV) vaccination programme for grade 4 girls attending public schools. Approximately 49% of South Africans have... -
“I think the parent should be there because no one was born alone”: Kenyan adolescents’ perspectives on parental involvement in HIV research
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Allison K Groves --- Department of Community Health and Prevention, USA Denise D Hallfors --- Pacific Institute for Research and Evaluation, USA Bonita J Iritani --- Pacific Institute for Research and Evaluation, USA Stuart Rennie --- Department of Social Medicine, USA Fredrick S Odongo --- Kenya Medical Research Institute, Kenya Daniel Kwaro --- Kenya Medical Research Institute, Kenya Nyaguara Amek --- Kenya Medical Research Institute, Kenya Winnie K Luseno --- Pacific Institute for Research and Evaluation, USADespite a pressing need for adolescent HIV research in sub-Saharan Africa, ethical guidance for conducting research among minor adolescents is lacking. One ethical issue is the degree to which parents should be involved in the research process. The existing discourse... -
Mother–baby dyads enrolled in PMTCT care in western Kenya: characteristics and implications for ART programmes
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Edith A Ogalo --- Moi Teaching and Referral Hospital, Kenya Japheth O Adina --- Academic Model Providing Access to Health Care (AMPATH)-USAID, Kenya Hesbon Ooko --- Academic Model Providing Access to Health Care (AMPATH)-USAID, Kenya James Batuka --- US Agency for International Development (USAID), Kenya Sylvester Kimaiyo --- Academic Model Providing Access to Health Care (AMPATH)-USAID, KenyaThe objective of the study was to establish the mother–baby pair characteristics that contribute to vertical transmission of HIV and elucidate on remediation. We assessed for factors increasing the odds of HIV transmission in children born to HIV-infected mothers in... -
Tablet-based disclosure counselling for HIV-infected children, adolescents, and their caregivers: a pilot study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Megan S McHenry --- Indiana University School of Medicine, USA Edith Apondi --- Academic Model Providing Access to Healthcare (AMPATH), Kenya Carole I McAteer --- Indiana University School of Medicine, USA Winstone M Nyandiko --- Academic Model Providing Access to Healthcare (AMPATH), Kenya Lydia J Fischer --- Indiana University School of Medicine, USA Ananda R Ombitsa --- Academic Model Providing Access to Healthcare (AMPATH), Kenya Josephine Aluoch --- Academic Model Providing Access to Healthcare (AMPATH), Kenya Michael L Scanlon --- Indiana University School of Medicine, USA Rachel C Vreeman --- Indiana University School of Medicine, USABackground: Overwhelmed, under-trained medical staff working in resource-limited settings need efficient resources for HIV disclosure counselling. The objective of this study was to describe providers’ experiences using tablet computers for disclosure-related counselling with HIV-infected children and their caregivers in western... -
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... -
Community perceptions and personal accounts of HIV discordance in rural western Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ken Ondenge --- Kenya Medical Research Institute, Kenya Isdorah Odero --- Kenya Medical Research Institute, Kenya Eucabeth Awuonda --- Kenya Medical Research Institute, Kenya Tereza Omoro --- Kenya Medical Research Institute, Kenya Michael Kibogo --- Kenya Medical Research Institute, Kenya George Otieno --- Kenya Medical Research Institute, Kenya Pauline Ongwena --- Kenya Medical Research Institute, Kenya Deborah A Gust --- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, USAAmong HIV-discordant couples, the literature is sparse regarding issues related to stigma, relationships and coping. Objectives were to explore: 1) perceptions about discordant HIV status; 2) understanding of HIV discordancy; 3) effects of discordancy on couples; and 4) adaptation and... -
Migritude’s Decolonial Lessons
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Neelofer Qadir --- Department of English, USAIn this essay, I trace the deep time of the Indian Ocean through and against which Shailja Patel fabulates the notion of migritude and, in particular, what its valences are for solidarities between black and brown Kenyans and other south-south... -
Introduction: Indian Ocean Trajectories
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Evan Mwangi --- Department of English, USA Tina Steiner --- English Department, South Africa -
Managing in the Informal Economy: The Informal Financial Sector in Tanzania
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Peter C. Mhando --- 315 Business Building, Risk Management Department, Smeal College of Business, USATo a certain extent, the informal economy flourishes by filling the gap left by formal institutions. This is most vividly illustrated where practical management of informal financial service delivery rests on the need for such as a means to an... -
The Informal Economy in pan-Africa: Review of the Literature, Themes, Questions, and Directions for Management Research
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Katia M. Galdino --- Georgia Southern University, USA Moses N. Kiggundu --- Sprott School of Business, Canada Carla D. Jones --- Sam Houston State University, USA Sangbum Ro --- University of Tampa, USAThe informal economy is an important phenomenon in African countries, accounting for up to 90% of the jobs in the lowest income Sub-Saharan countries such as Central African Republic and the Democratic Republic of the Congo. Management research about Africa,... -
Introduction to Special Issue – Managing Africa’s Informal Economy: Research, Practice and Advocacy
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Peter C. Mhando --- Department of Risk Management, Smeal College of Business, USA Moses N. Kiggundu --- Sprott School of Business, Canada -
Alternative pine hybrids and species to Pinus patula and P. radiata in South Africa and Swaziland
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Phillip Hongwane --- Technical Services, South Africa Glen Mitchell --- Kuching, Malaysia Arnulf Kanzler --- Sappi Forest Research, South Africa Steven Verryn --- Creation Breeding Innovations, South Africa Juan Lopez --- Department of Forestry and Environmental Resources, USA Paxie Chirwa --- Department of Plant and Soil Sciences, South AfricaThrough the collaborative efforts of companies affiliated with the International Program for Tree Improvement and Conservation (Camcore), a number of pine hybrids have been produced over the last decade. Many of these have been planted in trials across southern Africa... -
Towards a core curriculum for civic engagement on appropriate technology: Characterizing, optimizing and mobilizing youth community service learning
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Alexia J. Wensing --- Social Psychology, Canada Enrico J. Wensing --- Teachers College, Columbia University, USA Michelle Virgo --- Independent Scholar Practitioner, UKYoung learners represent a source of renewable energy that could benefit communities worldwide. While there are a growing number of isolated case examples of successful community engagement projects led by youth and their educators from around the world, a gap... -
Measuring maize production efficiency in the eastern Ethiopia: Stochastic frontier approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Musa Hasen Ahmed --- Department of Agricultural Economics, Ethiopia Aemro Tazeze --- Department of Agricultural Economics, Ethiopia Alem Mezgebo --- Department of Agricultural Economics, Ethiopia Eden Andualem --- Department of Agricultural Economics, EthiopiaThis study evaluated the technical, economic and allocative efficiency of maize production in eastern Ethiopia using cross-sectional data collected from 480 maize plots. The stochastic production function, fitted using the Cobb–Douglas production function, indicated that the amount of seed, land... -
Intraspecific morphological divergence in two Cichlid species from Benin
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Luke M Bower --- Program in Ecology and Evolutionary Biology and Department of Wildlife and Fisheries Sciences, USA Laith A Jawad --- Freelance Fish Biodiversity Consultant, New Zealand Pierre M Gnohossou --- Département d’Aménagement et Gestion de Ressources Naturelles, Republic of Benin Ayoko Géraldine Tossou --- Département d’Aménagement et Gestion de Ressources Naturelles, Republic of BeninSelection on morphological traits can vary across the range of species, inducing a mosaic of phenotypes across populations. Intraspecific morphological divergence had been demonstrated for many fish groups inhabiting environments with varying abiotic or biotic selective pressures. Such intraspecific phenotypic... -
Institutional Risk and Firm Performance in Africa: The Moderating Role of Corruption Control
Item type: Journal Article • Journal: Africa Journal of Management • Authors: David B. Zoogah --- Williams College of Business, USAHow does institutional risk influence firm performance in Africa? While most studies focus on formal institutional risk, I argue that informal institutional risks are equally influential. Consistent with that view I use informal institutions theory and multilevel techniques to analyze... -
A contribution to the phylogeny and taxonomy of the Pachydactylus weberi group (Squamata: Gekkonidae): a case of intraspecific colour polymorphism confounding taxonomy
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jiří Šmíd --- , , South Africa Hanlie Engelbrecht --- , , South Africa Jody M. Taft --- , , South Africa Nicolas S. Telford --- , , South Africa Buyisile G. Makhubo --- , , South Africa Aaron M. Bauer --- , , USA Krystal A. Tolley --- , , South AfricaPachydactylus is the most species-rich reptile genus in southern Africa. Most species are habitat specialists adapted to hyper-arid conditions of the Namibian and north-western South African xeric regions. Although a fair number of phylogenetic studies and taxonomic revisions have been... -
Review of the leaf-litter skinks (Scincidae: Panaspis) from the Gulf of Guinea Oceanic Islands, with the description of a new species
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Leonor B. Soares --- , , Portugal Luis M. P. Ceríaco --- , , Portugal Mariana P. Marques --- , , Portugal Cristiane Bastos-Silveira --- , , Portugal Lauren A. Scheinberg --- , USA D. James Harris --- , Portugal António Brehm --- , , Portugal José Jesus --- , PortugalLeaf-litter skinks of the genus Panaspis are currently represented in the oceanic islands of the Gulf of Guinea by two species, Panaspis africana and P. annobonensis. Here we describe a third species, Panaspis thomensis sp. nov., endemic to São Tomé... -
The relationship between social support and anxiety amongst children living with HIV in rural northern Namibia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Fred Besthorn --- Wichita State University, USA Eveline N Kalomo --- Wichita State University, USA Elizabeth Lightfoot --- University of Minnesota, USA Minli Liao --- Morgan State University, USAThis study examined how HIV-related stigma and social support are related to anxiety among children living with HIV in rural northern Namibia. This is a cross-sectional exploratory study with a sample of 132 caregiver–child dyads. Our study found that higher... -
Socio-demographic, marital and psychosocial predictors of safe sex behaviour among Mozambican women at risk for HIV/AIDS
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ana Luísa Patrão --- Institute of Collective Health, Brazil Teresa McIntyre --- School of Social Work, USAHeterosexual encounters remain the primary route for HIV transmission in Africa. Safer sex behaviour is not adopted by many women due to several social and psychological factors. This paper aims to identify socio-demographic, marital and psychosocial predictors associated with current... -
Social engagement and survival in people aged 50 years and over living with HIV and without HIV in Uganda: a prospective cohort study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joseph O Mugisha --- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine, Uganda Enid J Schatz --- Department of Health Sciences, USA Christian Hansen --- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine, Uganda Emily Leary --- Biostatistics and Research Design Unit, School of Medicine, USA Joel Negin --- School of Public Health, Australia Paul Kowal --- World Health Organization study on global AGEing and adult health, Switzerland Janet Seeley --- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine, UgandaThis study examined the association between social engagement and survival in people with or without HIV aged 50 years and over in Uganda. We analysed two waves of a survey from two sites in Uganda to assess predictors of mortality... -
Health and AIDS in 2019 and beyond
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Alan Whiteside --- Global Health Policy, Balsillie School of International Affairs, Canada David Wilson --- Global AIDS Program, USA -
“Containing” tuberculosis, perpetuating stigma: the materiality of N95 respirator masks
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Kate Abney --- School for International Training, USAThis paper analyses the role of the N95 respirator mask distributed by state-funded treatment programmes to patients who are undergoing treatment for different forms of tuberculosis (TB). Although mask-wearing protocol aims to physically “contain” TB, and thus stem the airborne... -
Providing early detection and early intervention for autism spectrum disorder in South Africa: stakeholder perspectives from the Western Cape province
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Lauren Franz --- , , USA Konyin Adewumi --- , USA Nola Chambers --- , , South Africa Marisa Viljoen --- , , South Africa Joy Noel Baumgartner --- , USA Petrus J. de Vries --- , , South AfricaWe set out to examine key stakeholder perspectives on early detection and intervention for autism spectrum disorder (ASD) in South Africa. Early detection and intervention improves child and family outcomes and lessens long-term costs. We focused on stakeholders in the... -
Adolescent positive self, negative self: associated but dissociable?
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Tianyuan Ke --- , , USA Jia Wu --- , USA Cynthia J. Willner --- , USA Zachariah Brown --- , , USA Michael J. Crowley --- , USAAdolescence is a period of significant identity development and particular vulnerability to depression associated with negative self-evaluation. We investigated if increased depressive symptom severity was also associated with positive self-evaluation. We also considered pubertal developmental differences in positive and negative... -
The second symposium of the ICTM Study Group of African Musics: selected highlights
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: George Worlasi Kwasi Dor --- Department of Music, University of Mississippi, USA -
The simultaneous moult of female hornbills is not triggered by the darkness of their nest cavity
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Mark Stanback --- Department of Biology, Davidson College, USA David Millican --- Department of Biological Sciences, USA Paul Visser --- Cheetah Conservation Fund, Namibia Laurie Marker --- Cheetah Conservation Fund, NamibiaA verbal model from 1937 proposed that the darkness of the nest cavity acts as a proximate trigger for the simultaneous moult observed in female hornbills. Although never tested, the plausibility of this hypothesis has allowed it to be cited... -
The presence of artificial water points structures an arid-zone avian community over small spatial scales
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Salamatu Abdu --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa Alan TK Lee --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa Susan J Cunningham --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South AfricaWater plays a key role in avian thermoregulation, especially when environmental temperatures approach or exceed body temperature. Birds living in arid environments need to either be adapted to life with unreliable access to water, or engage in large-scale movements to... -
Birds of the arid zones: living life on the edge
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Susan J Cunningham --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa -
On resolvable primal spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Intissar Dahane --- Department of Mathematics, Faculty of Sciences of Tunis, Tunis Sami Lazaar --- Department of Mathematics, Faculty of Sciences of Gafsa, Tunis Tom Richmond --- Department of Mathematics, USA Tarek Turki --- Department of Mathematics, Faculty of Sciences of Tunis, TunisA topological space is called resolvable if it is a union of two disjoint dense subsets, and is n-resolvable if it is a union of n mutually disjoint dense subsets. Clearly a resolvable space has no isolated points. If f... -
A note on Golomb topologies
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Pete L. Clark --- Department of Mathematics, Boyd Graduate Studies Research Center, USA Noah Lebowitz-Lockard --- Department of Mathematics, Boyd Graduate Studies Research Center, USA Paul Pollack --- Department of Mathematics, Boyd Graduate Studies Research Center, USAIn 1959 Golomb defined a connected topology on ℤ. An analogous Golomb topology on an arbitrary integral domain was defined first by Knopfmacher-Porubský [KP97] and then again in a recent work of Clark [Cl17]. Here we study properties of Golomb... -
Improved parameters of Pinus greggii seedling growth and health after inoculation with ectomycorrhizal fungi
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Rebeca Casique Valdés --- Department of Horticulture, Mexico Rosalinda Mendoza Villarreal --- Department of Horticulture, Mexico Fernando Galindo García --- Department of Horticulture, Mexico Susana González Morales --- Department of Horticulture, Mexico Sergio Sanchez Peña --- Department of Parasitology, MexicoPinus greggii Engelm. ex Parl. is an endemic pine of Mexico with notorious adaptability to eroded, shallow and poor soils. It is widely used in reforestation programmes worldwide. The purpose of the present study is to develop an ectomycorrhizal fungi... -
Status of globally threatened birds of Sapo National Park, Liberia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Benedictus Freeman --- Biodiversity Institute, University of Kansas, USA Filibus Danjuma Dami --- AP Leventis Ornithological Research Institute, University of Jos, Nigeria Mary Molokwu-Odozi --- Fauna & Flora International, LiberiaSapo National Park was the first established and is the largest national park in Liberia and contains the secondlargest area of primary tropical rainforest in West Africa. However, little is known about the distribution, population density, and ecology of threatened... -
Behind the emergence of management scholarly communities in Asia and Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: David B. Zoogah --- Williams College of Business, South Africa Mike W. Peng --- Jindal School of Management, USA Bruce T. LamontManagement scholarly communities have recently emerged in Asia and Africa. What are the antecedents behind their rise? What are the processes that facilitate their acceptance by internal and external stakeholders? Drawing on the sociology of science literature, this article develops... -
The effect of fire history on soil nutrients and soil organic carbon in a semi-arid savanna woodland, central Namibia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Elise Nghalipo --- Department of Agriculture and Natural Resources Sciences, Namibia Dave Joubert --- Department of Agriculture and Natural Resources Sciences, Namibia Heather Throop --- School of Earth and Space Exploration and School of Life Sciences, USA Alexander Groengroeft --- Institute of Soil Science, GermanyFire is an integral part of savanna ecosystems that has shaped these systems since the Miocene. Substantial uncertainty about fire effects in semi-arid ecosystems exists. Fire may affect ecosystem productivity directly through nutrient volatilisation, increased mineralisation and altering organic matter... -
Bone fractures among adult Nigerians with hyperthyroidism: risk factors, pattern and frequency
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: AO Ale --- Department of Medicine, Nigeria OO Odusan --- Department of Medicine, Nigeria TO Afe --- Department of Medicine, Nigeria OL Adeyemo --- Department of Medicine, Nigeria AO Ogbera --- Department of Medicine, NigeriaBackground: Hyperthyroidism is a common endocrine disorder with multi-systemic effects, the least reported of which is bone loss and fractures. -
Association between HIV/AIDS knowledge and stigma towards people living with HIV/AIDS in Botswana
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sandra B Letshwenyo-Maruatona --- Institute of Health Sciences-Gaborone, Botswana Montlenyane Madisa --- Botswana College of Distance and Open Learning, Botswana Thokgamo Boitshwarelo --- Institute of Health Sciences-Gaborone, Botswana Botho George-Kefilwe --- Institute of Health Sciences-Gaborone, Botswana Caroline Kingori --- Department of Social and Public Health, USA Gillian Ice --- Department of Social Medicine, Heritage College of Osteopathic Medicine and College of Health Sciences and Professions, USA Joseph A Bianco --- Department of Social Medicine, USA Marape Marape --- Marape & Marape Family Medical and Public Health Clinic, Botswana Zelalem T Haile --- Department of Social Medicine, Heritage College of Osteopathic Medicine, USAIn Botswana, an estimated 350 000 people live with HIV/AIDS. HIV/AIDS testing rates are low, suggesting that many other people remain undiagnosed. Stigma related to HIV/AIDS is prevalent and contributes to low testing rates and under-diagnosis of the virus. Identifying... -
Quantifying the impact of foliar insects on two Eucalyptus hybrids in Zululand, northern KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Lindokuhle S Dlamini --- School of Natural Resource Management, South Africa Keith M Little --- School of Natural Resource Management, South Africa Benice Sivparsad --- Institute for Commercial Forestry Research, South Africa Ryan Nadel --- School of Forestry and Wildlife Sciences, USAThe effects of defoliation by insect pests on Eucalyptus growth in South Africa is poorly understood, with the need for negative impacts to be quantified. In 2010, two long-term insect exclusion trials were established at Palm Ridge and Teza plantations... -
Time-dependent volatility in futures contract options
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Jilong Chen --- International Business School, School of Finance, China Christian Ewald --- University of Glasgow, UK Ali M. Kutan --- Business School, Department of Economics and Finance, USAThe Schwartz (1997) two-factor model is the benchmark model for pricing futures options, and the volatility is constant, which is similar to the Black-Scholes model. In this paper, we use a similar method which can make the Black-Scholes model be... -
Foreign direct investment flows and domestic investment in China: A multivariate time series analysis
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Usman Ali --- Faculty of Management and Economics, China Jian-Jun Wang --- Faculty of Management and Economics, China Veronica Patricia Yanez Morales --- Faculty of Management and Economics, China Meng-Meng Wang --- Darla Moore School of Business, USAThis paper explores the effects of inward and outward foreign direct investment (FDI) on domestic investment in China using annual time series data over the period of 1982–2016. The empirical analysis is performed using ARDL bound testing procedure and fully... -
Climate change and adaptation-induced engineering design and innovations in water development projects in Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Berhanu F. Alemaw --- Department of Geology, Botswana Nako M. Sebusang --- Department of Civil Engineering, BotswanaIn this paper, a framework for best practice for incorporating climate change and adaption in Africa is presented from mainly the water resources design and management perspectives to chart systematically ways of incorporating climate change in engineering design of water... -
Patriotic narratives on national leadership in Zimbabwe: Zimbabwe African National Union-Patriotic Front (ZANU-PF) and Movement for Democratic Change (MDC) song texts, ca 2000–2017
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Tavengwa Gwekwerere --- Department of Pan-African Studies, USA Davie E Mutasa --- Department of African Languages, South Africa Douglas Mpondi --- Department of Africana Studies, USA Believe Mubonderi --- Department of Languages and Literatures, ZimbabweThe national leadership question in post-2000 Zimbabwe can be examined using the rhetoric of the politicians involved and the song texts of their supporters. This article focuses on selected ZANU-PF and MDC song texts with a view to demonstrating that... -
Directed partial orders on unital algebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jingjing Ma --- Department of Mathematics, USAIn this note the simple conditions are provided to produce directed partial orders on a unital algebra A over a non-archimedean totally ordered field F to make A into a partially ordered algebra over F with a directed partial order. -
The effect of consumption of soy foods on metabolic syndrome in women: a case study from peri-urban Qwa-Qwa, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Wilna Oldewage-Theron --- Department of Nutritional Sciences, USA Abdulkadir Egal --- Centre of Sustainable Livelihoods, South AfricaObjectives: The objective was to determine the long-term effect (18 months) of 40 g daily consumption of whole soy bean on metabolic syndrome (MetS) in apparently healthy women. -
Correlates of perceived HIV-related stigma among HIV-positive pregnant women in rural Mpumalanga province, South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Shandir Ramlagan --- HIV/Aids, STI and TB Unit, Human Sciences Research Council, South Africa Sibusiso Sifunda --- HIV/Aids, STI and TB Unit, Human Sciences Research Council, South Africa Karl Peltzer --- HIV/Aids, STI and TB Unit, Human Sciences Research Council, South Africa Jenny Jean --- Miller School of Medicine, USA Robert A.C. Ruiter --- Department of Work and Social Psychology, The NetherlandsThe study investigated correlates of perceived HIV-related stigma among 673 HIV-positive women from rural Mpumalanga province, South Africa (mean age 28 years old, SD = 5.73 years). The women completed measures of HIV-related stigma experience and related personal factors. Following... -
A simplified control scheme for electric vehicle-power grid circuit with DC distribution and battery storage systems
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kabeya Musasa --- Department of Electrical and Electronic Engineering Science, South Africa Musole Innocent Muheme --- Department of Electrical and Electronic Engineering Science, South Africa Nnamdi Ikechi Nwulu --- Department of Electrical and Electronic Engineering Science, South Africa Mammo Muchie --- DST/NRF SARChI Research Professor on Science, Technology and Innovation Studies, Tshwane University of Technology, Pretoria, South AfricaThe direct current (DC) system is becoming the major trend for future internal power grid of electric vehicles (EVs). Since DC power grid system has a different nature to conventional alternating current (AC) grid system, appropriate design of the controller... -
The Biology of Grasslands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: David Ward --- Herrick Endowed Chair of Plant Biology, Department of Biological Sciences, USA -
Rhetoric-specific features of interactive metadiscourse in introduction moves: A case of discipline awareness
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Hadi Kashiha --- Department of English, Iran Susan Marandi --- Department of English, IranTo gain credibility and get acceptance from academic discourse communities, writers rely heavily on communicating with their audiences through publishing research articles (RAs). Analysing the generic structure of RAs can deal with issues relating to their language style and the... -
Effects of Tillage System and Weed Control Method on Weed Infestation and Yield of Lowland Rice (Oryza sativa L.)
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Eli Kuchi Jiya --- Department of Crop Production, Nigeria Emmanuel Daniya --- Department of Crop Production, Nigeria Musa Gimba Matthew Kolo --- Department of Crop Production, NigeriaA two–year experiment was carried out to determine the effects of tillage (heap and level, hoe plough and herbicide-based zero tillage) and weed control methods (no weeding, hoe weeding at 25 days after transplanting (DAT), hoe weeding at 25 and... -
Materials and technology solutions to tackle the challenges in daily concrete construction for housing and infrastructure in sub-Saharan Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Wolfram Schmidt --- Department 7: Safety of Structures Bundesanstalt für Materialforschung und -prüfung (BAM), Germany Nsesheye Susan Msinjili --- Department 7: Safety of Structures Bundesanstalt für Materialforschung und -prüfung (BAM), Germany Hans-Carsten Kühne --- Department 7: Safety of Structures Bundesanstalt für Materialforschung und -prüfung (BAM), GermanySub-Saharan Africa's economic rise has caused a high demand for housing and infrastructure. This rapid growth has resulted in urgent challenges of enormous dimensions for urban and infrastructural planners and the entire construction sector. Considering the African supply chains and... -
Rice husk ash as a sustainable supplementary cementitious material for improved concrete properties
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nsesheye Susan Msinjili --- Division 7.4 - Technology of Construction Materials, Germany Wolfram Schmidt --- Division 7.4 - Technology of Construction Materials, Germany Andreas Rogge --- Division 7.4 - Technology of Construction Materials, Germany Hans-Carsten Kühne --- Division 7.4 - Technology of Construction Materials, GermanyThere is a wide range of research worldwide on supplementary cementitious materials (SCMs) such as fly ash, slag and silica fumes that have pozzolanic properties sufficient for substituting ordinary Portland cement (OPC). These SCMs are known to significantly improve concrete... -
Some aspects of (non) functoriality of natural discrete covers of locales
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Richard N. Ball --- Department of Mathematics, USA Jorge Picado --- CMUC, Department of Mathematics, Portugal Aleš Pultr --- Department of Applied Mathematics and ITI,The frame Sc(L) generated by closed sublocales of a locale L is known to be a natural Boolean (“discrete”) extension of a subfit L; also it is known to be its maximal essential extension. In this paper we first show... -
Contribution to the knowledge of the macroinvertebrate fauna of the streams of Kahuzi-Biega National Park, Democratic Republic of Congo
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MF Ngera --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo SU Pauls --- Senckenberg Research Institute and Natural History Museum, Germany RW Holzenthal --- Department of Entomology, USA M Bagalwa --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo MA Bisimwa --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo EM Mushayuma --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo DR Cammaerts --- Independent researcher, research associate of the CRSN-Lwiro, Democratic Republic of CongoThe Albertine Rift is one of Africa’s major biodiversity hotspots. However, the aquatic fauna of its western border in Democratic Republic of Congo (DRC) remains understudied and poorly characterised. Kahuzi-Biega National Park (KBNP) in DRC is a crucial link for... -
Developing pathways to improve smallholder agricultural productivity through ecological intensification technologies in semi-arid Limpopo, South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Farirai Rusere --- Climate System Analysis Group, Department of Environmental and Geographical Science, South Africa Siyabusa Mkuhlani --- Climate System Analysis Group, Department of Environmental and Geographical Science, South Africa Olivier Crespo --- Climate System Analysis Group, Department of Environmental and Geographical Science, South Africa Lynn V. Dicks --- School of Biological Sciences, UKAgriculture faces an enormous global challenge of feeding nine billion people by 2050. This means a comprehensive intensification of agriculture is required. Ecological intensification is gaining momentum as a clearly defined vision for increasing agriculture productivity and sustainability. How ecological... -
Tradition and innovation: Between dynamics and tensions
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Maria de Fátima Ferreiro --- ISCTE-IUL, Dinamia’CET-IUL, Portugal Fayaz Ahmad Sheikh --- Centre for Studies in Science Policy (CSSP), India Merli Reidolf --- Tallin University of Technology, Estonia Cristina de Sousa --- Univ Portucalense, Research on Economics, Management and Information Technologies - REMIT & Dinamia’CET-IUL, Portugal Saradindu Bhaduri --- Centre for Studies in Science Policy (CSSP), IndiaTradition is certainly not new to the domain of innovation research. However, the interplay between the two has attracted less nuanced attention than it should have. Drawing on institutional theory, the purpose of this paper is to explore the dynamics... -
Gender-as-Lived: The Coloniality of Gender in Schools as a Queer Teacher Listens in to Complicated Moments of Resistance
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: A. K. O’Loughlin --- , USAIn this paper, I use Gloria Anzaldúa’s (1987) narrative method of “autohistoría” in concert with theoretical analysis to reflect on my experiences as a queer teacher in the heteronormative United States schooling system. These reflections are aimed at unpacking the... -
Lack of phylogeographic structure in the endangered Pickersgill’s Reed Frog; Hyperolius pickersgilli (Raw, 1982)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Antoinette Kotze --- , South Africa Taryn M.C. Ralph --- , , South Africa Lisa N. Barrow --- , , USA Jeanne Tarrant --- , South Africa Louis du Preez --- , , South Africa M. Thabang Madisha --- , South Africa Desire L Dalton --- , South AfricaThe Endangered Pickersgill’s Reed Frog (Hyperolius pickersgilli) is endemic to South Africa and restricted to the KwaZulu-Natal (KZN) coast. The natural habitat of H. pickersgilli is limited to fragmented patches of coastal reed-bed wetland, the majority of which continues to... -
Geographic variation in West African Agama picticauda: insights from genetics, morphology and ecology
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Sneha Krishnan --- , USA 80526, 4257858934 Caleb Ofori-Boateng --- , , Ghana Matthew K Fujita --- , , USA Adam D Leaché --- , USAWest Africa is a region characterised by high species diversity and endemism, making it an ideal region to study the evolution of genetic and phenotypic differentiation. Species in this region often vary in morphology and genetics; however, the specific drivers... -
Inter- and intra-cultural variation in learning-through-participation among Hadza and BaYaka forager children and adolescents from Tanzania and the Republic of Congo
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sheina Lew-Levy --- Department of Psychology, United Kingdom Alyssa N. Crittenden --- Department of Anthropology, USA Adam H. Boyette --- Thompson Writing Program, USA Ibrahim A. Mabulla --- Department of Archaeology and Heritage, Tanzania Barry S. Hewlett --- Department of Anthropology, USA Michael E. Lamb --- Department of Psychology, United KingdomWe examined cross-cultural variation in children’s learning-through-participation in economic work in two forager societies; the Hadza of Tanzania and the BaYaka of the Republic of Congo. We used observational data from 46 Hadza (41% female) and 65 BaYaka (48% female)... -
Untapped communicative resources in multilingual classroom settings: Possible alternatives
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Lydiah Kananu Kiramba --- Department of Teaching, Learning and Teacher Education, College of Education and Human Sciences, USA James Alan Oloo --- Gabriel Dumont Institute, CanadaThis paper presents a critical review of literature relating to language policy and literacy practices in education, with a particular focus on multilingual Kenya. Existing research on schooling in Kenya often draws attention to the use of languages that are... -
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... -
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... -
Presidential Address: Embracing the Secular in our ‘Sacred Scholarly World’
Item type: Journal Article • Journal: Africa Journal of Management • Authors: David B. Zoogah --- Department of Management and Entrepreneurship, Williams College of Business, USAIn this Address, I reflect on the journey of AFAM with regard to its past, present and future. As a new scholarly community, AFAM is called to the sacred society. Its future therefore should be based on the use of... -
Awareness and usage of work-life balance policies, cognitive engagement and perceived organizational support: A multi-level analysis
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Felicity Asiedu-Appiah --- Human Resource and Organisational Development, Ghana David B. Zoogah --- Department of Management and Entrepreneurship, USAUnderpinned by boundary management and social exchange theories, the study tested a multi-level model that examined the effect of collective employee awareness and usage of organizational work-life balance (WLB) policies on employees’ perceived organizational support. Results of multisource data obtained... -
Introduction to the Special Issue: Building High Performing Organizations in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Constant D. Beugré --- Department of Business Administration, USA Judy N. Muthuri --- Nottingham University Business School, UK -
The symbolic understanding of milk in Swiss gastronomy
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Perrine Leroy --- Ecole Hoteliere de Lausanne, Switzerland Peter Varga --- Ecole Hoteliere de Lausanne, SwitzerlandIn the 21st century, in a context where milk and dairy products are at the centre of many debates, this article wonders how doubts about these products are perceived in a gastronomic context where they are particularly appreciated and used... -
Community beliefs, HIV stigma, and depression among adolescents living with HIV in rural Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Scholastic Ashaba --- Department of Psychiatry, Uganda Christine E Cooper-Vince --- Massachusetts General Hospital, USA Dagmar Vořechovská --- Massachusetts General Hospital, USA Godfrey Zari Rukundo --- Department of Psychiatry, Uganda Samuel Maling --- Department of Psychiatry, Uganda Dickens Akena --- Department of Psychiatry, Makerere College of Health Sciences, Uganda Alexander C Tsai --- Department of Psychiatry, UgandaThe availability of and increased access to antiretroviral therapy (ART) has significantly reduced the morbidity and mortality associated with HIV. As a result, perinatally infected youth are increasingly able to reach adolescence. There is limited information about the psychosocial challenges... -
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... -
Innovation and entrepreneurship framework within the Middle East and North Africa region
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abdelkader Mazouz --- College of Business, Al Ain University of Science and Technology, UAE Loay Alnaji --- Computer Science Department, Moorpark College, Moorpark, USA Riadh Jeljeli --- College of Business, Al Ain University of Science and Technology, UAE Fayez Al-Shdaifat --- College of Business, Al Ain University of Science and Technology, UAEWhen linked, Innovation, Entrepreneurship and Leadership provide a platform for Organizational survival. This paper develops a framework for innovation – a necessary condition that requires the appropriate leadership in order to guide its course in the right direction. Innovation Proficiency... -
Acute changes in haematocrit leading to polycythaemia in late-onset hypogonadism patients that receive testosterone replacement therapy: a South African study
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Jesslee du Plessis --- Medicine Usage in South Africa (MUSA), North-West University, South Africa Hermanus Lambertus Bester --- Private Hospital, Emalahleni, South Africa, Marlene Julyan --- Medicine Usage in South Africa (MUSA), North-West University, South Africa Marike Cockeran --- School for Computer, Statistical and Mathematical Sciences, North-West University, South AfricaBackground: According to the literature, parenteral testosterone replacement therapy (TRT)-induced polycythaemia is associated with cardiovascular events. No or minimal data exist for the prevalence of TRT-induced polycythaemia in late-onset hypogonadism (LOH) patients from South Africa. Polycythaemia is the side effect... -
Division closed lattice-ordered rings and commutative L*-rings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jingjing Ma --- Department of Mathematics and Statistics, USA Jessica Smith --- Department of Mathematics and Statistics, USAThe paper continues the study of division closed lattice-ordered rings and commutative L*-rings. More interesting properties of division closed lattice-ordered rings are presented and it is shown that under certain conditions such rings are f-rings. The main result on L*-rings... -
Some new results on H summability of Fourier series
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Calixto P. Calderón --- Department of Mathematics, USA A. Susana Coré --- Department of Mathematics, USA Wilfredo O. Urbina --- Department of Mathematical and Actuarial Sciences, USAIn this paper we shall be concerned with Hα summability, for 0 < α ≤ 2 of the Fourier series of arbitrary L1([−π, π]) functions. The methods employed here are a modification of the real variable ones introduced by J... -
Where have foreign banks in Nigeria gone? Market structure, competitive intensity and the capabilities of Nigeria banks
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Lilac Nachum --- International Business Department, USA Chris Ogbechie --- Strategic Management Department, NigeriaPrivately-owned Nigerian banks hold 94% of Nigeria banking assets, the world's second largest share of local ownership. Theoretical explanations for the dominance of local firms related to liabilities of foreignness do not explain this phenomenon, as foreign banks do not... -
Management of financial institutions in Africa: Emerging themes and future research agenda
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Ifedapo Adeleye --- Human Resources Management Program, USA Yaw A. Debrah --- School of Management, UK Lilac Nachum --- Zicklin School of Business, Baruch College, USAThe rise of the financial services sector in Africa over the last decade or so has been phenomenal, marked by significant advances in mobile money, and growing financial inclusion and profitability. However, there are significant gaps in the academic literature... -
Behavioural analysis of Village Weavers Ploceus cucullatus in an Ethiopian breeding colony during incubation: 1. Females
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Bobby Habig --- Department of Biology, Queens College, USA Khaleda Khan --- Department of Biology, Queens College, USA David C Lahti --- Department of Biology, Queens College, USAWe used video recordings to perform a behavioural analysis of a Village Weaver Ploceus cucullatus colony in Awash National Park, Ethiopia. We focused specifically on female behaviour during the pair-formation, egg-laying and early-incubation phases of the nesting cycle. A factor... -
Behavioural analysis of Village Weavers Ploceus cucullatus in an Ethiopian breeding colony during early incubation: 2. Males
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Khaleda Khan --- Department of Biology, Queens College, USA Bobby Habig --- Department of Biology, Queens College, USA David C Lahti --- Department of Biology, Queens College, USAWe observed a colony of Village Weavers Ploceus cucullatus in Ethiopia at the height of the breeding season to assess variation and relationships amongst male behaviours. Individuals spent most of their time on behaviours functioning in acquiring and retaining mates,... -
Variable phylogeographic histories of five forest birds with populations in Upper and Lower Guinea: implications for taxonomy and evolutionary conservation
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jean-Bernard Dongmo --- Laboratory of Zoology, Department of Animal Biology and Physiology, Faculty of Sciences, Cameroon Jeffrey M DaCosta --- Biology Department, Boston College, USA Champlain Djieto-Lordon --- Laboratory of Zoology, Department of Animal Biology and Physiology, Faculty of Sciences, Cameroon Pierre Ngassam --- Laboratory of Parasitology and Ecology, Cameroon Michael D Sorenson --- Department of Biology, USAThis study evaluates phylogeographic structure in selected forest bird species distributed on either side of the Dahomey Gap in West Africa to extend analyses of avian diversification across the Guineo-Congolean forest. Mitochondrial DNA sequence data were collected for five species,... -
Height and volume functions for Pinus lawsonii, Pinus leiophylla, Pinus oocarpa and Pinus pringlei plantations in Guarei, São Paulo, Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Rafaella Carvalho Mayrinck --- School of Environment and Sustainability, Canada Vinicius Gontijo Rodrigues Roque --- Grupo Resinas Brasil, Complexo Florestal Sao Pedro, Brazil Antonio Carlos Ferraz Filho --- Departamento de Engenharia, Brazil Eduardo Michaloski Filho --- Grupo Resinas Brasil, Complexo Florestal Sao Pedro, Brazil Fredo Arias-King --- T & R Chemicals, USA Andressa Ribeiro --- Departamento de Engenharia, BrazilInventories are time- and money-consuming. Hence, accurate equations to estimate difficult-to-measure variables are desirable, especially for species that are not commercially established, such as Pinus lawsonii, P. leiophylla, P. pringlei and P. oocarpa. This study aimed to fit height and... -
Variations of [ɾ] in Dagbani female names
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Abdul-Razak Inusah --- Department of Languages, Evershed Kwasi Amuzu --- Department of Linguistics, George Akanlig Pare --- Department of Linguistics,The article examines the sociolinguistic variations of the alveolar tap [ɾ] in Dagbani female names, a Gur language spoken in the northern part of Ghana. It focuses on how the language is losing the pronunciation of the alveolar lateral /l/... -
Duality models for multiobjective semiinfinite fractional programming problems involving type-I and related functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Pooja Gupta --- Department of Mathematics, India S.K. Mishra --- Department of Mathematics, India R.N. Mohapatra --- Department of Mathematics, USAIn this paper, we consider several dual models for a multiobjective semiinfinite fractional programming problem and establish usual duality theorems involving type-I and related functions. Our results generalize the results of Zalmai and Zhang [G.J. Zalmai and Qing-hong Zhang, Parametric... -
Gestational trophoblastic disease managed at Grey's Tertiary Hospital: a five-year descriptive study
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Bongumusa S Makhathini --- Grey’s Hospital, Department of Obstetrics and Gynaecology, Faculty of Health Sciences, South Africa Greta Dreyer --- Gynaecologic Oncology Unit, Department of Obstetrics and Gynaecology, South Africa Eckhart J Buchmann --- Department of Obstetrics and Gynaecology, South AfricaBackground: A study was undertaken to describe the outcomes of gestational trophoblastic disease (GTD) and to determine the influence of antecedent pregnancy, the distance travelled by patients to Grey's Hospital (GH), and HIV status on the disease and clinical outcomes. -
The state of costing research for HIV interventions in sub-Saharan Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Drew B Cameron --- Health Policy and Management, USA Mohamed Mustafa Diab --- Institute for Health Policy Studies, USA Lauren N Carroll --- Institute for Health Policy Studies, USA Lori A Bollinger --- Avenir Health, USA Willyanne DeCormier Plosky --- Avenir Health, USA Carol Levin --- Department of Global Health, USA Benjamin Herzel --- Institute for Health Policy Studies, USA Elliot Marseille --- Health Strategies International, USA Lily Alexander --- Department of Global Health, USA Sergio Bautista-Arredondo --- Division of Health Economics and Health Systems Innovations, Mexico Carlos Pineda-Antunez --- Division of Health Economics and Health Systems Innovations, Mexico Diego Cerecero-García --- Division of Health Economics and Health Systems Innovations, Mexico Gabriela B Gomez --- London School of Hygiene and Tropical Medicine, United Kingdom William H Dow --- Health Policy and Management, USA James G Kahn --- Institute for Health Policy Studies, USAThe past decade has seen a growing emphasis on the production of high-quality costing data to improve the efficiency and cost-effectiveness of global health interventions. The need for such data is especially important for decision making and priority setting across... -
Smart cascades: using cost analysis to improve HIV care and treatment interventions to achieve global 95–95–95 goals
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Catherine Barker Cantelmo --- Health Policy Plus Project (HP+), USA Bryant Lee --- Health Policy Plus Project (HP+), USA Arin Dutta --- Health Policy Plus Project (HP+), USABackground: HIV programmes are achieving significant scale, even as external financing plateaus. Maximising achievement from identification to viral suppression is key to epidemic control and reaching global 95-95-95 goals. Cost and technical efficiency analyses can help programs understand why losses... -
Meta-analysis of average costs of HIV testing and counselling and voluntary medical male circumcision across thirteen countries
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Carlos Pineda-Antunez --- Center for Health Systems Research, Mexico Gisela Martinez-Silva --- Center for Health Systems Research, Mexico Diego Cerecero-Garcia --- Center for Health Systems Research, Mexico Lily Alexander --- Department of Global Health, USA Drew B Cameron --- Health Policy and Management, USA Chris Chiwevu --- Independent consultant, Lalit Dandona --- Public Health Foundation of India, Gurugram, National Capital Region, India Carol Dayo Obure --- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, UK Steven Forsythe --- Avenir Health, USA Van Thu Nguyen --- FHI 360, Vietnam Stella Settumba --- The Kirby Institute, University of New South Wales, Australia Michel Tchuenche --- Avenir Health, USA Hoang Van Minh --- Center for Population Health Sciences, Vietnam James G Kahn --- Philip R. Lee Institute for Health Policy Studies, USA Gabriela Gomez --- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, UK Sedona Sweeney --- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, UK Anna Vassall --- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, UK Lori Bollinger --- Avenir Health, USA Carol Levin --- Department of Global Health, USA Sergio Bautista-Arredondo --- Center for Health Systems Research, MexicoObjective: Explore facility-level average costs per client of HIV testing and counselling (HTC) and voluntary medical male circumcision (VMMC) services in 13 countries. -
Developing the Global Health Cost Consortium Unit Cost Study Repository for HIV and TB: methodology and lessons learned
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Willyanne DeCormier Plosky --- Avenir Health, USA Lori A Bollinger --- Avenir Health, USA Lily Alexander --- Department of Global Health, USA Drew B Cameron --- Department of Health Policy and Management, USA Lauren N Carroll --- Philip R Lee Institute for Health Policy Studies, USA Lucy Cunnama --- Health Economics Unit, South Africa Gabriela B Gomez --- Centre for Health Economics, London School of Hygiene and Tropical Medicine, United Kingdom Carol Levin --- Department of Global Health, USA Elliot Marseille --- Health Strategies International, USA Mohamed Mustafa Diab --- Philip R Lee Institute for Health Policy Studies, USA Mariana Siapka --- Centre for Health Economics, London School of Hygiene and Tropical Medicine, United Kingdom Edina Sinanovic --- Health Economics Unit, South Africa Anna Vassall --- Centre for Health Economics, London School of Hygiene and Tropical Medicine, United Kingdom James G Kahn --- Philip R Lee Institute for Health Policy Studies, USAConsistently defined, accurate, and easily accessible cost data are a valuable resource to inform efficiency analyses, budget preparation, and sustainability planning in global health. The Global Health Cost Consortium (GHCC) designed the Unit Cost Study Repository (UCSR) to be a... -
HIV testing preferences among pregnant women attending antenatal care and their male partners: a discrete choice experiment in Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jeffrey E Korte --- Department of Public Health Sciences, USA Michael Strauss --- Health Economics and HIV and AIDS Research Division, South Africa Aissatou Ba --- Department of Public Health Sciences, USA Esther Buregyeya --- School of Public Health, Uganda Joseph KB Matovu --- School of Public Health, Uganda Rose Kisa --- School of Public Health, Uganda William Musoke --- Mildmay Uganda, Uganda Harriet Chemusto --- Mildmay Uganda, Uganda Caroline J Vrana-Diaz --- Department of Public Health Sciences, USA Angela M Malek --- Department of Public Health Sciences, USA Rhoda K Wanyenze --- School of Public Health, Uganda Gavin George --- Health Economics and HIV and AIDS Research Division, South AfricaHIV testing rates remain stubbornly low among men – a crucial target population for reaching the ambitious global and regional goals of the HIV programme. In an era of declining donor funding, identifying cost-effective strategies to increase testing rates amongst... -
Which delivery model innovations can support sustainable HIV treatment?
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Caroline A Bulstra --- Erasmus Medical Centre, Department of Public Health, The Netherlands Jan AC Hontelez --- Erasmus Medical Centre, Department of Public Health, The Netherlands Osondu Ogbuoji --- Center for Policy Impact in Global Health, USA Till Bärnighausen --- Institute of Global Health, University of Heidelberg, GermanyThe rapid scale-up of antiretroviral treatment (ART) for HIV since the mid-2000s, mostly through disease-specific or “vertical” programmes, has been a highly successful undertaking, which averted millions of deaths and prevented many new infections. However, the dynamics of the HIV... -
A meta-analysis approach for estimating average unit costs for ART using pooled facility-level primary data from African countries
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Diego Cerecero-García --- National Institute of Public Health, Mexico Carlos Pineda-Antunez --- National Institute of Public Health, Mexico Lily Alexander --- HIV AIDS TB Research Consortium CISIDAT, Mexico Drew Cameron --- Health Policy, USA Gisela Martinez-Silva --- National Institute of Public Health, Mexico Carol Dayo Obure --- African Development Bank Group, Tunis Elliot Marseille --- Center for Global Surgical Studies, USA Lung Vu --- Population Council, USA James G Kahn --- Institute for Health Policy Studies, University of California San Francisco, USA Anna Vassall --- London School of Hygiene and Tropical Medicine, UK Gabriela Gomez --- London School of Hygiene and Tropical Medicine, UK Lori Bollinger --- Avenir Health, USA Carol Levin --- Department of Global Health, USA Sergio Bautista-Arredondo --- National Institute of Public Health, MexicoObjective: To estimate facility-level average cost for ART services and explore unit cost variations using pooled facility-level cost estimates from four HIV empirical cost studies conducted in five African countries . -
Editorial – A sustainable AIDS response: results in the era of shrinking donor funding
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Steven Forsythe --- Avenir Health, Glastonbury CT, USA and The International AIDS Economics Network, Iris Semini --- Joint United Nations Programme on HIV/AIDS (UNAIDS), -
Market orientation and poverty reduction: A study of rural microentrepreneurs in Ghana
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Charles Blankson --- Department of Marketing, Logistics and Operations Management, G. Brint Ryan College of Business, USA Julius A. Nukpezah --- Department of Political Science and Public Administration, USAWe draw on the quality of life theory and government economic development policies that focus on entrepreneurship for a theoretical backdrop to investigate the consequences of market orientation among microentrepreneurs in Ghana. We use qualitative data from 28 microentrepreneurs involving... -
A reflective note: AJOM Inaugural Junior Faculty Fellowship
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Juliana M. Namada --- Chandaria School of Business, Kenya Carol Brunt --- Department of Management, USA Joshua Knapp --- Department of Management, USAIn recognizing the persistent publishing challenge among African-based scholars, the African Academy of Management (AFAM) and the Africa Journal of Management (AJOM) joined forces to explore various alternatives to address the challenge. The creation of the Junior Faculty Fellowship is... -
A dialogue on the informal economy in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Tiara Nicole Dungy --- Lilly School of Philanthropy, USA Hermann Achidi Ndofor --- Kelley School of Business, USAAlthough ubiquitous, very little is generalizable about the informal economy. This is especially the case within Africa wherein the informal economy also intersects with the indigenous economy. The diversity of papers in the special issue (AJOM, Volume 4 Issue 3)... -
‘Only Tonga spoken here!’: Family language management among the Tonga in Zimbabwe
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Busani Maseko --- Languages, Zimbabwe Davie E Mutasa --- African Languages, South AfricaThis article analyses language management strategies that are employed by Tonga parents towards the conservation of the Tonga language. Since Zimbabwe gained independence, Tonga, alongside a host of other previously designated minority languages has endured marginalisation in terms of use... -
Associations between mental distress, poly-victimisation, and gender attitudes among adolescent girls in Cambodia and Haiti: an analysis of Violence Against Children surveys
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Christina Juan --- , USA Jeffrey Edmeades --- , USA Suzanne Petroni --- , USA Chisina Kapungu --- , USA Rebecca Gordon --- , USA Daniela Ligiero --- , USAThis study aims to explore the effects of poly-victimisation (defined as the experience of multiple different forms of violence, including physical, emotional, and/or sexual) and gender attitudes on mental distress and suicidal ideation among adolescent girls, using cross-sectional nationally representative... -
Nomino Na Majina Ya Pekee Katika Fasihi Tafsiri: Yatafsiriwe Au La?
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Nahashon A. Nyangeri --- Department of Kiswahili, University of Nairobi, Kenya Rachel Wangari --- Modern languages, St Lawrence University, USANomino au majina ya pekee ni mojawapo ya maswala muhimu anayokumbana nayo mtafsiri katika mchakato wa tafsiri yoyote iwayo. Mara nyingi mtafsiri hutanzika iwapo majina hayo yanafaa kufasiriwa au la. Nomino za pekee katika fasihi mara nyingi huwa ni malighafi... -
Post-Intentional Phenomenology as Ethical and Transformative Inquiry and Practice: Through Intercultural Phenomenological Dialogue
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Younkyung Hong --- , USAThis study is a conceptual dialogue aimed at attaining insight into reading and developing postintentional phenomenology as intercultural philosophical inquiry. This conversation commences with the problem of Eurocentric phenomenology and introduces several examples of intercultural phenomenological attempts which fail to... -
The phonological structure of English borrowed words in Dagbani
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Abdul-Razak Inusah --- Languages Department, Ghana Edward Salifu Mahama --- Institute of Interdisciplinary Research and Consultancy Services, GhanaThis article examines the phonological processes and phonological structures that characterise words that are borrowed from English into Dagbani, a Gur language with a dominant CV syllable structure. The syllable is used as a descriptive tool in the accounts of... -
Thailand ICTM 45
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Jean Kidula --- University of Georgia, USA -
Contemplating African art music: a reflection on the Akin Euba Symposium and Concert
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Bode Omojola --- Department of Music, Mount Holyoke College/Five College Consortium, USA -
One Buzzy Evening (2017) for tenor trombone and percussion
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Charles Lwanga --- Brain Aging and Cognitive Health Lab, University of Pittsburgh, USAOne Buzzy Evening (2017) for tenor trombone and percussion is a creative musicological work that explores the gradual transformation of limited motivic ideas, both rhythmic and melodic. Moving from a percussive sound world to a mixture with melodic sounds, the... -
Ethiopian immigrants to Israel: The persistence and transformation of African values and practices in art and life
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Patricia M. Greenfield --- Department of Psychology, USA Oshrat Sulika Rotem --- Department of Education, Israel Michael Weinstock --- Department of Education, IsraelWe present a qualitative interdisciplinary study of seven Ethiopian potters who immigrated to Israel as adults. Data sources include cultural products (their clay sculptures), interviews, and archival photos at the time of immigration. Together these data sources show how these... -
Nutritional values and chemical composition of tropical pastures as potential sources of α-tocopherol and condensed tannin
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Jalise F Tontini --- Graduate Program in Animal Science, Agronomy College, Brazil Cesar HEC Poli --- Graduate Program in Animal Science, Agronomy College, Brazil Viviane S Hampel --- Graduate Program in Animal Science, Agronomy College, Brazil Alessandro P Minho --- Embrapa Southeast Livestock, Brazilian Agricultural Research Corporation, Ministry of Agriculture, Brazil James P Muir --- Texas AgriLife Research, USATropical pastures can be important natural sources of antioxidant compounds and may impact production and quality of animal protein with repercussions on human health. The objective of this study was to evaluate the concentrations of α-tocopherol, condensed tannin (CT) and... -
Morphological and genetic variation of Leptopelis brevirostris encompasses the little-known treefrogs Leptopelis crystallinoron from Gabon and Leptopelis brevipes from Bioko Island, Equatorial Guinea
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Rayna C Bell --- , , USA Patrick J McLaughlin --- , , USA Gregory FM Jongsma --- , , USA David C Blackburn --- , , USA Bryan L Stuart --- , USAThe Central African treefrog Leptopelis brevirostris has a characteristically short and vertically truncated snout, a tooth-like process at the centre of the mandible, and unlike most species of Leptopelis, eats terrestrial gastropods. Two morphologically similar species (L. crystallinoron and L... -
Improving productivity of orange-fleshed sweetpotato (Ipomoea batatas) through intercropping with legumes and moderate phosphorus application
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Eliah Munda --- International Potato Center, Mozambique Petrus J Pieterse --- Department of Agronomy, South Africa Maria I Andrade --- International Potato Center, Mozambique Godwill S Makunde --- International Potato Center, Mozambique Engil I Pereira --- School of Earth, Environmental, and Marine Sciences, USASweetpotato yield is adversely affected by poor soil fertility in Mozambique where access to inorganic fertilisers is lacking. The objective of the study was to evaluate the effectiveness of intercropping sweetpotato with groundnut and soybean at various phosphorus (P) fertilisation... -
Unlimited parity alternating partitions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Shane Chern --- , USAWe introduce a new type of partition that consists of partitions whose different parts alternate in parity (e.g., 3 + 2 + 2 + 1 + 1). Various properties of this partition function are studied. In particular, we obtain its... -
Regular division closed lattice-ordered rings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jingjing Ma --- , USAWe provide an example of a regular division closed commutative lattice-ordered ring with identity element that is not an almost f-ring. It is also pointed out that regular division closed commutative lattice-ordered rings with the identity element are f-rings provided... -
HeartMath approach to self-regulation and psychosocial well-being
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jorina Elbers --- HeartMath Research Center, USA Rollin McCraty --- HeartMath Research Center, USAThe ability to alter one’s emotional responses is central to overall well-being and effectively meeting the demands of life. In this article, we discuss the perspective that one’s ability to self-regulate the quality of feeling and emotion of one’s moment-to-moment... -
Retrospective and prospective glances of the past and future of the Africa Journal of Management
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Bruce T. Lamont --- College of Business, USA Moses N. Kiggundu --- Sprott School of Business, CanadaWe described the vision for the Africa Journal of Management and the start of a journey five years ago (Kiggundu, M., & Lamont, B. (2015). Introduction to the Africa Journal of Management: The Journey Begins. Africa Journal of Management, 1,... -
The consequence of evil: An essay concerning natural theodicy
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Ryan Kulesa --- Ministry Leadership and Theology, USASome philosophers of religion contend that the mere existence of natural evils gives strong reason to reject the existence of an omnibenevolent God. This brief essay takes the form of a reductio ad absurdum in order to demonstrate that the... -
A community-based HIV counselling and testing programme found a decreasing proportion of new HIV testers in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Simukai Shamu --- Foundation for Professional Development, South Africa Thato Farirai --- Foundation for Professional Development, South Africa Jean Slabbert --- Foundation for Professional Development, South Africa Geoffrey Guloba --- Foundation for Professional Development, South Africa Nomea Masihleho --- USAID, South Africa Julius Kamera --- USAID, South Africa Nkhensani Nkwashu --- Foundation for Professional Development, South AfricaThis article assesses the history of HIV testing among community-based HIV counselling and testing (CBCT) clients between 2014 and 2018 in 13 South African districts. Consenting clients were tested for HIV and interviewed to categorise as first-time testers or repeat... -
Levels and determinants of HIV testing uptake among Ghanaian men
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Samuel H Nyarko --- Department of Demography, College of Public Policy, USA Corey Sparks --- Department of Demography, College of Public Policy, USAThe uptake of HIV testing has always been found to be lower among men compared with women in many developing countries. The aim of this study was to ascertain the level and determinants of HIV testing uptake among men aged... -
Resilience and pathways to wellness among HIV-positive patients in Ghana: a qualitative study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Chantal Lewis --- Brown University Schools of Public Health, USA Margaret Lartey --- University of Ghana School of Medicine & Dentistry, Ghana Don Operario --- Brown University Schools of Public Health, USAFew African studies have focused on resilience factors related to engagement in HIV-related care among people living with HIV; instead, many studies have identified health risk factors and barriers within this population. Informed by the Disability-Stress-Coping Model of Adjustment, a... -
Kwaito's Promise: Music and the Aesthetics of Freedom in South Africa
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Charles Lwanga --- Psychology/Music, USA -
The impact of audio-lingual and TPR methods in teaching Igbo to L2 learners
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Kelvin Francis Olisaemeka Obitube --- Linguistics, Igbo and other Nigerian Languages, Boniface Monday Mbah --- Linguistics and Nigerian Languages, Olusanmi Babarinde --- Linguistics and Nigerian Languages,This study evaluates the value of the total physical response (TPR) method for teaching Igbo to L2 learners. Specifically, it evaluates which of these methods is more effective. It is quantitative research which adopts the experimental design. 100 students are... -
Language choices among South African migrants in the tourist space of Zanzibar
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Susanne Mohr --- Department of English, American and Celtic Studies, GermanyIn an increasingly mobile world, in which people and languages from different cultures meet all across the globe, the development and dynamics of linguistically and culturally superdiverse spaces are of particular sociolinguistic interest. In this regard, two important phenomena are... -
School-based yoga intervention increases adolescent resilience: a pilot trial
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Joshua C Felver --- , USA Rachel Razza --- , USA Melissa L Morton --- , USA Adam J Clawson --- , USA Rebecca Shaffer Mannion --- , USABackground: Youth often experience stressors leading to negative long-term outcomes. Enhancing social-emotional attributes is important to foster resiliency to face these challenges. Yoga may enhance social-emotional resiliency among youth. However, research replicating such results in school-settings is limited. This research... -
Sub-Saharan African cultural belief system and entrepreneurial activities: A Ghanaian perspective
Item type: Journal Article • Journal: Africa Journal of Management • Authors: William K. Darley --- , Charles Blankson --- , USAThis article seeks to advance our understanding of the culture-entrepreneurship relationship from an African perspective by examining how six African traditional beliefs either promote or hinder entrepreneurial activities. These six traditional Ghanaian cultural beliefs (i.e. belief in godliness, belief in... -
Discrepancy between preoperative endometrial sampling and hysterectomy diagnosis in endometrial cancer
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Sanele E Mhlongo --- , South Africa Thinagrin D Naidoo --- , South Africa Bongumusa S Makhathini --- , South AfricaBackground: A study was conducted to determine the accuracy of preoperative endometrial sampling histology type and tumour grade results compared with the final postoperative diagnosis. -
Depressive symptoms disrupt leftward cradling
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Lea-Ann Pileggi --- , South Africa Simone Storey --- , South Africa Susan Malcolm-Smith --- , South AfricaObjective: Leftward cradling bias is thought to facilitate optimal interaction between mother and infant. There is mixed evidence indicating this bias may be disrupted by depression. This study investigated the relationship between depressive symptoms and preferred cradling side (i.e., cradling... -
Unravelling technology-acceptance factors influencing farmer use of banana tissue culture planting materials in Central Uganda
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Lucy Mulugo --- , Uganda Florence Birungi Kyazze --- , Uganda Paul Kibwika --- , Uganda Enoch Kikulwe --- , Aman Bonaventure Omondi --- , Susan Ajambo --- ,Effective management of plant health is fundamental for food and income security to meet the growing demands of local and global markets. This however requires farmers’ adequate access to quality planting materials under the prevailing contextual and psycho-social factors. This... -
Tatamkhulu Afrika, Queer Heroism, Triangulated Forms
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Michelle Decker --- , USATatamkhulu Afrika, lauded writer and South African activist, over the course of his life suffered imprisonments under the Nazis and the apartheid state; he also changed his name five times and won almost every literary award in South Africa. Afrika’s... -
Regional efficiency disparities in rural and community banks in Ghana: A data envelopment analysis
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joy Say --- , China Hongjiang Zhao --- , China Francisca Sena Agbenyegah --- , Ghana Angela Abena Nusenu --- , China Evans Asante Boadi --- , China Samuel Morkporkpor Egbadewoe --- , USAThis study measured the level of rural and community banks’ (RCBs) efficiency in Ghana to ascertain whether there were regional disparities in the levels of efficiency using Charnes-Cooper-Rhodes (CCR) and Barker-Charnes-Cooper (BCC) models. We collected data from 127 banks over... -
Annual litter production in a Brazilian Cerrado woodland savanna
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Alan N Costa --- , Brazil Alessandra Bartimachi --- , Brazil Heraldo L Vasconcelos --- , USA Emilio M Bruna --- , USA Ernane HM Vieira-Neto --- , USAThe Brazilian Cerrado is a heterogeneous ecosystem where annual woody-layer litter production shows strong spatiotemporal variation. Although Cerrado litter dynamics have been well-documented in forest physiognomies, knowledge from savanna habitats remains limited despite their predominance across the landscape. In this... -
Informal sector entrepreneurship, individual entrepreneurial orientation and the emergence of entrepreneurial leadership
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Mazanai Musara --- School of Development Studies, University of Mpumalanga, South Africa Cecile Nieuwenhuizen --- Business Management, University of Johannesburg, College of Business and Economics, South AfricaThe informal economy plays an integral role in addressing the socio-economic issues facing many nations around the world. Informal sector entrepreneurship activities contribute 10–20% of the GDP in developed economies and up to 60% in developing economies. In South Africa,... -
Restorative followership in Africa: Antecedents, moderators, and consequences
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Baniyelme D. Zoogah --- Williams College of Business, Xavier University, USA James B. Abugre --- University of Ghana Business School, University of Ghana, GhanaIn this paper, we report on three studies that examine one perspective of strategic followership: restorative followership. It centers on the restorative behavior of followers in bad leadership contexts. In Study 1, we leverage insight from restorative behavior theory to... -
Multilevel perspectives on leadership in the African context
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Michael A. Abebe --- Vackar College of Business & Entrepreneurship, The University of Texas Rio Grande Valley, USA Amanuel G. Tekleab --- Mike Ilitch School of Business, Wayne State University, USA Augustine A. Lado --- David D. Reh School of Business, Clarkson University, USADespite the depth of research on leaders and leadership in the Western and Asian contexts, the study of leadership in the African context remains at a nascent stage. In this special issue, we take a multilevel perspective to review and... -
Companionate leadership: A shemswian perspective
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Baniyelme D. Zoogah --- Department of Management and Entrepreneurship, Williams College of Business, Xavier University, USAGiven the calls for theories and models of leadership unique to Africa, I leverage insight from African historical, anthropological, and philosophical accounts to propose one type of indigenous leadership: companionate leadership. It is based on ancient (Kemetic scribes of the... -
Chlorophyll a fluorescence as an indicator of heat stress in cotton (Gossypium hirsutum L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: MM van der Westhuizen --- , South Africa DM Oosterhuis --- , USA JM Berner --- , South Africa N Boogaers --- , South AfricaCotton (Gossypium hirsutum L.) is a major fibre crop that is greatly affected by climatic factors, especially drought and high temperatures. Excessive temperature (above 30 °C) during the reproductive stage (flowering) negatively affects cotton yield potential. Four diverse cotton genotypes... -
Effect of land terracing on soil physical properties across slope positions and profile depths in medium and high altitude regions of Rwanda
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Aloys Fashaho --- , Rwanda George M Ndegwa --- , Rwanda Joyce J Lelei --- , Kenya Amos O Musandu --- , Kenya Samuel M Mwonga --- , KenyaAlthough land terracing is promoted as a management practice for effective soil conservation in hilly areas, construction of terraces causes changes in soil properties. This study evaluated the effect of land terracing on some soil physical properties across slope positions... -
“I’m doing this test so I can benefit from PrEP”: exploring HIV testing barriers/facilitators and implementation of pre-exposure prophylaxis among South African adolescents
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Emily Yoshioka --- , USA Danielle Giovenco --- , USA Caroline Kuo --- , USA Kristen Underhill --- , USA Jackie Hoare --- , South Africa Don Operario --- , USAIn South Africa, adolescents are a key population in the HIV epidemic that can benefit from increased access to oral pre-exposure prophylaxis (PrEP). HIV testing is an integral component of the PrEP care continuum but adolescents in South Africa have... -
Addressing community-level stigma toward key populations: communication insights from action research in Ghana
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Warren Parker --- , USA Joan Schubert --- , Ghana Serwaa Owusu-Ansah --- , Ghana Kwadwo Asante-Afari --- , Ghana Samuel Edem Assisi --- , Ghana Emmauel D Adiku --- , Ghana Thad Pennas --- , USA Saul Evans Williams --- , GhanaBackground: Global HIV response emphasises improving the uptake of HIV testing, providing access to antiretroviral therapy and sustaining viral suppression with a view to curtailing the pandemic by 2030. Stigma and discrimination impede this response by limiting engagement with the... -
Managing the march of COVID-19: lessons from the HIV and AIDS epidemic
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Alan Whiteside --- , Canada Warren Parker --- , USA Mike Schramm --- , South Africa -
The HIV/AIDS pandemic in Kenya: an investigation into the perceptions of Kenyans toward people living with HIV/AIDS and government programmes
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Robert Nyaga --- , USAThe HIV/AIDS pandemic is compounded by the continued stigmatization of the virus/disease and of people living with HIV/AIDS (PLWHA). Employing structuration theory, this study sought to examine the perceptions of Kenyans toward their government’s efforts to curtail HIV/AIDS as well... -
PMTCT Option B+ 2012 to 2018 — Taking stock: barriers and strategies to improve adherence to Option B+ in urban and rural Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rachel King --- , USA Joyce Namale Matovu --- , Uganda Joseph Rujumba --- , Uganda Priscilla Wavamunno --- , Uganda Alexander Amone --- , Uganda Grace Gabagaya --- , Uganda Mary Glenn Fowler --- , Uganda Jaco Homsy --- , Uganda Janet Seeley --- , UK Philippa Musoke --- , UgandaSince 2012, PMTCT Option B+ has been recommended by the World Health Organization to reduce vertical transmission but numerous adherence challenges remain. We conducted a qualitative study at baseline using six focus group discussions and 14 in-depth interviews to explore... -
Applying a social-ecological lens to opinions about HIV self-testing among Kenyan truckers who declined to test: a qualitative study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Stephanie N Christian --- , USA Joanne E Mantell --- , USA Matthew L Romo --- , USA Christian Grov --- , USA Gavin George --- , South Africa Eva Mwai --- , Kenya Eston Nyaga --- , Kenya Jacob O Odhiambo --- , Kenya Kaymarlin Govender --- , South Africa Elizabeth A Kelvin --- , USAHIV prevalence among truckers in Africa is high and testing rates suboptimal. With numerous African countries having approved HIV self-testing kits, more information on how to design acceptable and accessible self-testing programs for high-risk populations is necessary. We explored views... -
Bourgain discretization using Lebesgue-Bochner spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mikhail I. Ostrovskii --- , USA Beata Randrianantoanina --- , USAWe study the Lebesgue-Bochner discretization property of Banach spaces Y , which ensures that the Bourgain discretization modulus for Y has a good lower estimate. We prove that there exist spaces that do not have the Lebesgue-Bochner discretization property, and... -
Complementation in the Fremlin vector lattice symmetric tensor products-I
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Donghai Ji --- , China Khazhak Navoyan --- , USA Qingying Bu --- , USAFor a positive integer n and a uniformly complete vector lattice E, let denote the n-fold Fremlin vector lattice symmetric tensor product of E. We prove that if there exists a lattice homomorphism φ ∈ E ∼ then E is... -
A dwarf among giants: phylogenetic position of the elusive Angolan Adder (Bitis heraldica) and biogeographic affinities of Angolan Afromontane regions
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Luis MP Ceríaco --- Museu de História Natural e da Ciência da Universidade do Porto, Portugal Krystal A Tolley --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South Africa Mariana P Marques --- Research Center in Biodiversity and Genetic Resources (CIBIO), Research Network in Biodiversity and Evolutionary Biology (InBIO), University of Porto, Portugal Matthew P Heinicke --- Department of Natural Sciences, University of Michigan-Dearborn, USA Aaron M Bauer --- Department of Biology and Center for Biodiversity and Ecosystem Stewardship, Villanova University, USAThe Angolan Adder, Bitis heraldica (Bocage, 1889), is endemic to the Angolan central plateau and is one of the most poorly known and rarely observed species of African snakes. The phylogenetic placement of B. heraldica within the four subgenera of... -
William Roy Branch: Bibliography, taxonomic discoveries and patronyms
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Michael F Bates --- Department of Herpetology, National Museum, South Africa Aaron M Bauer --- Department of Biology and Center for Biodiversity and Ecosystem Stewardship, Villanova University, USAWilliam Roy Branch (1946–2018) was the most prolific Africa-based herpetologist of his era. His 659 herpetological contributions, spanning 47 years, include field and photographic guides, taxonomic revisions, phylogenies, ecological studies, annotated checklists, conservation assessments, type catalogues, notes on natural history,... -
A tribute to William Roy Branch (1946–2018): Doyen of African Herpetology
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Michael F Bates --- Department of Herpetology, National Museum, South Africa Aaron M Bauer --- Department of Biology and Center for Biodiversity and Ecosystem Stewardship, Villanova University, USALondon-born William Roy Branch spent nearly 50 years working as a herpetologist while associated with Port Elizabeth Museum. Bill, as he was known, passed away at home in Port Elizabeth on 14 October 2018, at the age of 72, after... -
Pre-displacement stressors, psychological morbidity, and PTSD symptoms among displaced women by Boko-Haram in North-East Nigeria: The buffering roles of psychological capital
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Erhabor S. Idemudia --- , South Africa Babatola D. Olawa --- , South Africa Gail E. Wyatt --- , USA Norweeta Milburn --- , USAWe utilised a cross-sectional survey design to examine the moderating roles of dimensional psychological capital (PsyCap) and pre-displacement stressors on the relationship between psychological morbidity and severity of PTSD symptoms among internally displaced (IDP) women from terrorist activity. Participants were... -
First look at humpback whale (Megaptera novaeangliae) song structure from western South Africa
Item type: Journal Article • Journal: African Zoology • Authors: James Seymour Hawkey --- , South Africa Simon Harvey Elwen --- , South Africa Bridget Susan James --- , South Africa Alexa Simone Prinsloo --- , South Africa Tess Gridley --- , South AfricaHumpback whales are known for their complex and well-structured song that is typically produced on low-latitude breeding grounds. However, there is increasing evidence of song production on migration routes and high-latitude feeding grounds. Within a breeding ground and season, males... -
Recent progress in rings and subrings of real valued measurable functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Soumyadip Acharyya --- , USA Sudip Kumar Acharyya --- , India Sagarmoy Bag --- , India Joshua Sack --- , USATwo separated realcompact measurable spaces (X, ) and (Y, ) are shown to be isomorphic if and only if the rings (X, ) and M(Y, ) of all real valued measurable functions over these two spaces are isomorphic. It is... -
Strict ⊤-embeddings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Lyall Reid --- , USA Gary Richardson --- , USAThe concept of a ⊤-limit space has recently been introduced and studied. It resembles the top level space of a lattice-valued convergence space. In this context, the notion of a strict T 3-embedding is defined. For a given ⊤-limit space,... -
Characterisation of ecosystem-based adaptations to drought in the central cattle corridor of Uganda
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Susan Nanfuka --- , Uganda David Mfitumukiza --- , Uganda Anthony Egeru --- , UgandaEcosystems provide climate-change adaptation opportunities including ecosystem services, adaptation benefits and livelihood improvement especially for natural resource dependent communities. To contribute to the understanding of location specific adaptation processes of predominantly agro-pastoralists, a study was carried out in the central... -
HIV stigma, resilience and depressive symptoms among older adults living with HIV in rural Namibia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Eveline Ndinelao Kalomo --- , USA Jung Sim Jun --- , USA Kyoung Lee --- , USA Mgori Nuru Kaddu --- , NamibiaIn sub-Saharan Africa, HIV-positive older adults aged 50 years and older experience complex psychosocial issues in addition to dealing with their HIV status and the ageing process. This study focused on the association between HIV stigma, resilience, and depressive symptoms... -
Assessment of an HIV-prevention intervention for couples in peri-urban Uganda: pervasive challenges to relationship quality also challenge intervention effectiveness
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Phoebe Kajubi --- , Uganda Allison Ruark --- , USA Norman Hearst --- , USA Sam Ruteikara --- , Uganda Edward C Green --- , USAReducing multiple and concurrent partnerships has been identified as a priority in generalised HIV epidemics, yet developing successful interventions to bring about such behaviour change has proven challenging. We offered a three-session intervention aimed to improve couple relationship quality and... -
On skew derivations and generalized skew derivations in Banach algebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Abdul Nadim Khan --- , Saudi Arabia Shakir Ali --- , India Husain Alhazmi --- , Saudi Arabia Vincenzo De Filippis --- , ItalyLet A be unital prime Banach algebra over ℝ or ℂ with centre and G 1, G 2 be open subsets of be a continuous linear generalized skew derivation, and be a continuous linear map. We prove that must be... -
Anatomical, physiological and allometric contrasts of the Cerrado tree Dalbergia miscolobium in full sun and shade environments
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ane Marcela das Chagas Mendonça --- , Brazil Jean Marcel Sousa Lira --- , Brazil Marcelo Rodrigues --- , Brazil Vanessa da Fontoura Custódio Monteiro --- , Brazil Edson Simão --- , Brazil João Paulo Rodrigues Alves Delfino Barbosa --- , BrazilThe Brazilian Cerrado is a mosaic comprised of different vegetation formations and consequently, different environmental conditions. Tree density modifies the availability of light and affects species distribution. Thus, seedlings of species with a broad distribution should show contrasting anatomical, morphological,... -
Association of anthropometric status and residential locality factors with cognitive scores of 4–6-year-old children in Kwazulu-Natal, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: OR Ajayi --- , South Africa G Matthews --- , South Africa M Taylor --- , South Africa JD Kvalsvig --- , South Africa LL Davidson --- , USA S Kauchali --- , South Africa C Mellins --- , USABackground: The Asenze study has the long-term goal of promoting better physical, cognitive and psychosocial functioning of children in a rural area in KwaZulu-Natal, 50 km from Durban, with a view to planning interventions to promote growth and development for very... -
Extruded food products and their potential impact on food and nutrition security
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Abdulkadir Egal --- , South Africa Wilna Oldewage-Theron --- , USAFood insecurity, leading from insufficient dietary intakes to nutritional insecurity and ultimately to malnutrition, is a persistent problem in developing countries and also South Africa. One of the strategies that can be employed to address food insecurity is the provision... -
Nutritional status of children aged 0–60 months in two drought-prone areas of Ethiopia
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Shimelis Beyene --- , USA Mary S Willis --- , USA Martha Mamo --- , USA Belaineh Legesse --- , Ethiopia Teshome Regassa --- , USA Tsegaye Tadesse --- , USA Yitbarek Wolde-Hawariat --- , Ethiopia Nur Firyal Roslan --- , USAObjectives: A study was undertaken to assess the prevalence of undernutrition and associated factors among children under five in two drought-prone areas in Ethiopia. -
The reptiles of Tinhosa Grande islet (Gulf of Guinea): A taxonomic update and the role of Quaternary sea level fluctuations in their diversification
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Luis MP Ceríaco --- Universidade do Porto, Portugal Justin Bernstein --- Rutgers University-Newark, USA Ana C Sousa --- Universidade de Évora, Portuga Mariana P Marques --- Universidade de Lisboa, Portugal Aaron M Bauer --- Villanova University, USA Sietze J Norder --- Leiden University Centre for Linguistics, The NetherlandsThe reptile fauna of Tinhosa Grande islet, Gulf of Guinea, comprises an endemic skink, Trachylepis adamastor, and an unidentified species of gecko of the genus Hemidactylus. Until recently, no molecular data were available for either species, impeding their phylogenetic placement... -
Measuring time perspective in Ethiopian young adults using the Adolescent and Adult Time Inventory (AATI)
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ephrem T. Yacob --- , Ethiopia Beide M. Bezabih --- , Ethiopia Frank C. Worrell --- , USA Zena R. Mello --- , USATime perspective is an under-researched social construct in Africa. We examined scores on an Amharic translation of the Adolescent and Adult Time Inventory (AATI) in a sample of 422 young adults attending two types of educational institutions in Ethiopia: preparatory... -
Management research in Africa: Insights from organizational neuroscience
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Constant Beugré --- , USAThe present paper discusses the application of organizational neuroscience in management research in Africa. In so doing, the paper draws from the field of neuroscience, organizational neuroscience, and cultural neuroscience to explore the extent to which topics, such as corruption,... -
Supply chain management and organizational performance: Evidence from SMEs in South Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Welby V. Loury Okoumba --- , South Africa Chengedzai Mafini --- , South Africa Joyendu Bhadury --- , USAThe salutary impact of adopting supply chain management best practices (SCMBPs) on organizations is well documented. However, similar studies on small and medium enterprises (SMEs), especially in underdeveloped/developing economies are relatively scant in the extant literature. This is despite the... -
Loss to follow-up among female sex workers in Zambia: findings from a five-year HIV-incidence cohort
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kalonde Malama --- , France Luis Sagaon-Teyssier --- , France Andréa Gosset --- , France Rachel Parker --- , USA Kristin M Wall --- , USA Amanda Tichacek --- , USA Tyronza Sharkey --- , Zambia William Kilembe --- , Zambia Mubiana Inambao --- , Zambia Matt A Price --- , USA Bruno Spire --- , France Susan Allen --- , USAHIV-incidence studies are used to identify at-risk populations for HIV-prevention trials and interventions, but loss to follow-up (LTFU) can bias results if participants who remain differ from those who drop out. We investigated the incidence of and factors associated with... -
Customer behavioural analysis: The impact of internet addiction, interpersonal competencies and service orientation on customers’ online complaint behaviour
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Seonjeong Ally --- , USA Aryn C. Karpinski --- , USA Aviad A. Israeli --- , USACustomers share their service experiences on social media. However, prior research has not investigated the role of customers’ traits on their complaining behaviour. This study focuses on a hospitality setting to explore relationships among customers’ interpersonal competencies, internet addiction, service... -
Evaluation of phytoremediation effects of chicken manure, urea and lemongrass on remediating a lead contaminated soil in Kabwe, Zambia
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Yui Yoshii --- , Japan Isabell von Rein --- , USA Kabenuka Munthali --- , Zambia Mukuka Mwansa --- , Zambia Hokuto Nakata --- , Japan Shota Nakayama --- , Japan Mayumi Ishizuka --- , Japan Yoshitaka Uchida --- , JapanHigh levels of lead (Pb) in the soil is a serious issue in the city of Kabwe, Zambia. Phytoremediation is an effective approach to revive the life-supporting functions of the soils. Locally available soil amendments, such as chicken manure, can... -
Growth and modulus of elasticity of pine species and hybrids three years after planting in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: O Nilsson --- , Sweden G R Hodge --- , USA L J Frampton --- , USA W S Dvorak --- , USA J Bergh --- , SwedenGrowth data and modulus of elasticity (MOE) of 11 different pine species and hybrids were examined at six sites in three regions in South Africa. Growth traits and three MOE variables were measured at three years of age in order... -
Grass functional trait responses to experimental warming and fire in Afromontane grasslands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Mariska te Beest --- , The Netherlands Anne Kleinjan --- , The Netherlands Veerle Tuijnman --- , The Netherlands Nicky Findlay --- , The Netherlands Thembeka Mvelase --- , South Africa Elizabeth le Roux --- , United Kingdom Michelle Tedder --- , South Africa Paul Gordijn --- , South Africa Susan Janse van Rensburg --- , South AfricaClimate change is one of the main challenges facing humanity in the coming century. To understand the impact of climate change on biodiversity and ecosystem functioning, we urgently require a better understanding of plant responses to climate change. To address... -
Detecting square numbers
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Philip R. Brown --- , USAWe discover some properties of square numbers (perfect squares) if they are expressed in base 2 s for s ≥ 3 and develop an algorithm that builds up the square root of a number (if it exists) from the low... -
Depressive symptoms among older adults with HIV in Namibia: the role of social support and spirituality
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Eveline Ndinelao Kalomo --- , USA Jung Sim Jun --- , USA Kyoung Hag Lee --- , USA Mgori Nuru Kaddu --- , NamibiaBackground: More than 60% of older adults living with HIV reside in sub-Saharan Africa. Namibia has one of the highest HIV/AIDS prevalence rates. This study examined the association between social support, spirituality and depressive symptoms. -
Motivating people living with HIV to initiate antiretroviral treatment outside national guidelines in three clinics in the HPTN 071 (PopART) trial, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Constance Mubekapi-Musadaidzwa --- , South Africa Dillon Wademan --- , South Africa Neshaan Peton --- , South Africa Portia Hendricks --- , South Africa Gabriela Carolus --- , South Africa Rheiner Mbaezue --- , South Africa Karen F Kelley --- , South Africa James Kruger --- , South Africa Karen Jennings --- , South Africa Nelis Grobbelaar --- , South Africa Francoise Louis --- , South Africa Nulda Beyers --- , South Africa Helen Ayles --- , Zambia Sarah Fidler --- , UK Richard Hayes --- , UK Peter Bock --- , South Africa Graeme Hoddinott --- , South AfricaBackground: The HPTN 071 (PopART) trial implemented universal test and treat (UTT) in three clinics in the Western Cape, South Africa at a time when antiretroviral treatment (ART) was only offered by CD4 threshold and World Health Organization clinical staging... -
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. -
Determinants of loss to follow-up among people living with HIV on antiretroviral therapy in Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Farouq Muhammad Dayyab --- , Nigeria Fahad Mukhtar --- , USA Garba Iliyasu --- , Nigeria Abdulrazaq Garba Habib --- , NigeriaBackground: Considerable success has been recorded in the global fight against the human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS). Retention in care is the key to the attainment of set goals in the fight against the disease. We... -
HIV and aging among adults aged 50 years and older on antiretroviral therapy in Eswatini
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Tiffany G Harris --- , USA Sarah Flören --- , USA Joanne E Mantell --- , USA Rejoice Nkambule --- , Eswatini Nomthandazo G Lukhele --- , Eswatini Bongiwe Prudence Malinga --- , Eswatini Rhinos Chekenyere --- , Eswatini Altaye Kidane --- , USABackground: Antiretroviral therapy (ART) has decreased HIV-related morbidity and mortality and increased life expectancy of people living with HIV (PLHIV). Globally, the number of older PLHIV (OPLHIV; ≥50 years) is growing and predicted to increase substantially in coming years. In... -
The influence of developmental feedback on voice: The mediating role of organisation-based self-esteem
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Weilin Su --- , China Xinqi Lin --- , China Manuel London --- , USAWe investigated the extent to which receiving developmental feedback from the work supervisor increased employee confidence to be proactive in expressing promotive voice (e.g., offering advice) and prohibitive voice (e.g., point out problems or criticising), and the employee organisation-based self-esteem... -
The performance implications of strategic responses of SMEs to the covid-19 pandemic: Evidence from an African economy
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Suzzie Owiredua Aidoo --- , Ghana Ahmed Agyapong --- , Ghana Moses Acquaah --- , USA Samuel Yaw Akomea --- , GhanaHow does the use of adaptive resilience (perseverance and retrenchment) as a strategic response influence the performance of SMEs during catastrophic events such as the COVID-19 pandemic? This study examines how adaptive resilience in the form of perseverance and retrenchment... -
Alone or in company? Cultural orientation, strategic response and COVID-19 outcomes
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Baniyelme D. Zoogah --- , USA Benedicta S. Quao --- , Ghana Vincent H. T. Musah --- , Ghana Patience O. Ahwireng --- , GhanaThe respiratory disease, Coronavirus Disease 2019 (COVID-19), which began in December 2019, and became a pandemic in early 2020, has posed critical challenges not only for nations and businesses but also individuals. As a result, management scholars are examining organizational... -
INTRODUCTION TO THE SPECIAL ISSUE: Preliminary investigations into the COVID-19 pandemic and management in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Moses Acquaah --- , USA Rebecca Namatovu --- , Denmark Moses N. Kiggundu --- , CanadaThe COVID-19 pandemic and the resulting lockdowns and restrictions taken by African governments to mitigate the spread of the virus have adversely affected the lives of people, health systems, organizations, society, and national economies. In this special issue, we take... -
Do passengers perceive flying first class as a luxury experience?
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Eileen Lee --- , USA Carl A Boger --- , USA Andy Heyes --- , The NetherlandsThe definition of a single luxury experience has remained elusive to the airline industry, experts, scholars, and even luxury consumers. The duality of luxury suggests that experiences must provide a sense of prestige and hedonic well-being to be perceived as... -
Wiredu and Eze on consensual democracy and the question of consensual rationality
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Husein Inusah --- , GhanaThe essay raises objections to Emmanuel Chukwudi Eze’s criticisms of Kwasi Wiredu’s notion of consensual rationality. Wiredu promotes traditional African consensual democracy as an alternative political system to the Western majoritarian model of democracy, which he claims is adversarial. However,... -
Alignments closed under a binary product
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Robert E. Jamison --- , USAThis paper is concerned with closure systems defined on groups such that the product of any two closed sets is again closed. The main objective of this paper is to show that if enough “small” subsets are closed, then all... -
Virtual identity crisis: The phenomenology of Lockean selfhood in the “Age of Disruption”
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Michael F. Deckard --- , USA Stephen Williamson --- ,From the end of the seventeenth century to now well into the 21st, John Locke’s theory of personal identity has been foundational in the field of philosophy and psychology. Here we suggest that there are two fundamental threads intertwined in... -
Anthropogenic food availability and body mass maintenance in urban Red-winged Starlings Onychognathus morio
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Taylyn C Risi --- , South Africa Petra Sumasgutner --- , South Africa Susan J Cunningham --- , South AfricaAnthropogenic food availability is influenced by short-term fluctuations in human presence, especially in core urban areas. Few studies have explored responses to such day-to-week fluctuations, specifically on body mass and body condition of urban birds. Here, we investigated non-breeding body... -
Daily hassles and depressive symptoms among COVID-19 home quarantined Chinese university students: The moderating effects of negative cognitive styles
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Junyi Wang --- , China Yinglu Zhou --- , USA Jinhong Ding --- , China Jing Xiao --- , ChinaThe current study examined the potential moderating effects of negative cognitive styles on the relationship between daily hassles and depressive symptoms among COVID-19 home quarantined university students. A total of 686 university students ranging in age from 16 to 23... -
Teachers’ language ideologies, conflicting language policy and practices in Zimbabwean education system
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Busani Maseko --- , South AfricaTo date, Zimbabwe does not have an overt and comprehensive language policy. Policy is inferred from language practices in various spaces and from pieces of legislation in education, the media and legal domains. In multilingual schools, teachers make and renegotiate... -
Evaluation of an improved Katambora grass cultivar G HR1 for root-knot nematode management in tobacco
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Privilege T Makunde --- , Zimbabwe Susan Dimbi --- , Zimbabwe Tafadzwa S Mahere --- , Zimbabwe Stanford Banana --- , Zimbabwe Cleopas C Chinheya --- , ZimbabweIncreased environmental, human and animal health concern with nematicides use in controlling root-knot nematode (Meloidogyne spp.) in tobacco (Nicotiana tabacum L.) has fostered the need to find environmentally-friendly alternatives. Among these alternatives is the use of non-host crops in rotation... -
Exploring the antecedents of entrepreneurship success in information technology firms in Nigeria
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Akinyele Okeremi --- , Nigeria Kwasi Amoako-Gyampah --- , USA Livingstone Divine Caesar --- , SwitzerlandWe examine four antecedents of IT entrepreneurship success in Nigeria. Particularly, two of the investigated antecedents are general human capital factors (i.e., having experience with entrepreneurial parents and business training) and the other two (IT education and spirituality) are specific... -
The work-family interface and polygamy in Africa: A demands-resources perspective
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Ifeyimika O. Ogunyomi --- , USA Wendy J. Casper --- , USAWork-family (WF) research in Africa has just begun to address unique elements of work and family relationships on this continent. In this paper, the relationships between family demands and resources in polygamous homes and family-to-work conflict and enrichment are put... -
Dynamic behaviour of institutional ownership and firm life cycle: Evidence from Taiwan
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Yung-Jang Wang --- , Taiwan M. Mark Walker --- , USA Po-Hsiung Huang --- , TaiwanWe find that firms in the growth and maturity stage generally have higher levels of institutional ownership, higher Tobin’s Q ratios, and are more likely to remain in their life cycle stage over the subsequent six-year period. Further analysis indicates... -
Does the elderly’s private pension ownership intensify aggregate equity demand? Empirical evidence in the US
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Sei-Wan Kim --- , Korea Young-Min Kim --- , Korea Dennis W. Jansen --- , USA Lu Yanxin --- , KoreaIn this paper, we investigate how the old generation income structure affects aggregate equity purchases, using Flows of Funds Accounts and Survey of Consumer Finances. Our results suggest that the risk aversion that increases with age could be modified to... -
Home range size of male dama gazelles, Nanger dama, in an ex situ population in West Texas
Item type: Journal Article • Journal: African Zoology • Authors: Elizabeth Cary Mungall --- , United States Susan M Cooper --- , United StatesDama gazelles (Nanger dama Pallas, 1766) are critically endangered within their native habitat of northern Africa’s Sahelo-Saharan Zone. However, several Texas ranches maintain populations that provide a hedge against extinction and that can provide suitable stock for conservation projects, including... -
The nutrient quality and labelling of ready-to-eat snack foods with health and/or nutrition claims
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Andrea Susan Bursey --- , South Africa Nicola Laurelle Wiles --- , South Africa Chara Biggs --- , South AfricaBackground: Nutrition claims on food labels are used to attract attention to products. Inaccurate claims on ready-to-eat (RTE) snack food products may mislead consumers into consuming a higher volume of a seemingly ‘healthy’ product. -
Taxonomic revision of the Jita snakes (Lamprophiidae: Boaedon) from São Tomé and Príncipe (Gulf of Guinea), with the description of a new species
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Luis MP Ceríaco --- Museu de História Natural e da Ciência da Universidade do Porto, Portugal Ana Lisette Arellano --- Golden Gate National Parks Conservancy, USA Robert C Jadin --- University of Wisconsin Stevens Point, Wisconsin, USA Mariana P Marques --- Universidade de Lisboa, Portugal Diogo Parrinha --- Universidade de Lisboa, Portugal Jakob Hallermann --- Universität Hamburg, GermanyThe taxonomic status of the São Tomé and Príncipe islands ‘Cobras Jitas’, genus Boaedon, has been a subject of confusion. Historically, these island populations have been referred to as part of either the Boaedon fuliginosus species complex or Boaedon capensis... -
Two types of Galois correspondences over quantaloid-typed sets
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jinming Fang --- , China Zhou Fang --- , USAFor a small, integral and meet-continuous quantaloid , we establish two types of Galois correspondences by considering a limit structure on a set as a -multiple limit structure on a -typed set. One Galois correspondence shows that the stratified -topologies... -
The impact of trauma on South African women with HIV: The role of anxiety and physical symptomology
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Abigail S Robbertz --- , USA Martha N Ishiekwene --- , USA Olivia L Hucks --- , USA Lisa Armistead --- , USARates of trauma and HIV are high in South Africa, and those who experience more trauma have higher levels of psychological distress. This cross-sectional study examined trauma, physical, and mental health among black South African women living with HIV (WLH)... -
“I did not plan … that is what hurts”: Pregnancy intentions and contraceptive use among pregnant young women in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jessica N Coleman --- , USA Cecilia Milford --- , South Africa Nzwakie Mosery --- , South Africa Karmel W Choi --- , USA Letitia Rambally Greener --- , South Africa Lynn T Matthews --- , USA Abigail Harrison --- , USA David R Bangsberg --- , USA Steven A Safren --- , USA Jennifer A Smit --- , South Africa Christina Psaros --- , USAUnintended pregnancy impacts many young women in South Africa, and rates of consistent contraceptive use among this population are suboptimal. Limited empirical work has investigated reasons for inconsistency between pregnancy intention and contraceptive use behaviour with data collected during pregnancy... -
The role of pharmacy personnel in promoting adherence to antiretroviral therapy in the Eastern Cape: communication barriers and breakthroughs
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Elizabeth Rattine-Flaherty --- , USA Sue Burton --- , South AfricaBackground: Many people living with HIV struggle to adhere to their antiretroviral therapy, leading to suboptimal health outcomes and increased costs to the healthcare system. Due to their unique training and position in the health care system, South African pharmacists... -
Creative Writing as Literary Activism: Decolonial Perspectives on the Writing Workshop
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Bwesigye Bwa Mwesigire --- , USA Madhu Krishnan --- , UKThis paper explores the concept of literary activism by reflecting on a co-productive creative writing project run by the University of Bristol (United Kingdom) and the Center for African Cultural Excellence (Uganda). It considers how the space of the creative... -
What is Literary Activism? (Or Who keeps the housekeepers’ house?)
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Bwesigye Bwa Mwesigire --- , USAIn August 2016, a four-day workshop brought together emerging and established African curators in Kampala under the label, the Arts Managers and Literary Entrepreneurs Workshop (AMLEW) to share knowledge and skills. In 2017, the name of the workshop changed to... -
Family language policy: The case for a bottom-up approach in conserving Zimbabwe’s minoritised languages
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Busani Maseko --- , South AfricaThis article focuses on the perspectives of selected members drawn from three language and culture associations to understand their bottom-up initiatives in the conservation of minoritised languages in Zimbabwe. By triangulating the reversing language shift theory and the concept of... -
Potentials of leys or pasture-based forage production in Nigeria
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Saheed Olaide Jimoh --- , China Yunusa Muhammad Ishiaku --- , Nigeria Tracy Burnett --- , United States Ahmed Adeyemi Amisu --- , Nigeria Rasheed Adekunle Adebayo --- , South AfricaFulani pastoralists are widely distributed across the six geographical zones of Nigeria and migrate from north to south in search of natural grazing lands at times of forage scarcity. This migration leads annually to resource use conflict and deadly attacks... -
Examining leadership preferences of working adults in Ghana, Kenya, and Zambia
Item type: Journal Article • Journal: Africa Journal of Management • Authors: W. Randy Evans --- , USA Romie Frederick Littrell --- , Russian Federation Nai H. Lamb --- , USA Bradley Kirkman --- , USADo traditional, gender-based expectations and widely disseminated notions of African culture apply to preferred leadership behaviors in African nations? This study examines leadership preferences of working adults in Ghana, Kenya, and Zambia using the Leader behavior Description Questionnaire-XII (LBDQXII), a... -
Social capital and project management success in a developing country environment: Mediating role of knowledge management
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Kwasi Amoako-Gyampah --- , USA Moses Acquaah --- , USA Ebenezer Adaku --- , Ghana Samuel Famiyeh --- , GhanaDespite significant investments in projects by organizations, governments, and international development agencies in developing countries, many of the projects have failed and continue to fail due to budget overruns, inability to complete projects on time, and poor-quality outcomes. We draw... -
Why students want to provide feedback to their peers: Drivers of feedback quantity and variation by type of course
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Zheng Zong --- , China Yanqing Wang --- , China Christian Dieter Schunn --- , USAWe researched students’ peer feedback motivation types and how the instructional context would influence feedback motivations. Participants were 138 undergraduate management majors (female = 41%; mean age = 20 years, SD = 0.5 years) taking a programming course in two... -
IDMPS Wave 7 Africa
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: H Kaplan --- , South Africa A Amod --- , Durban, South Africa A Chadli --- , Morocco JC Mbanya --- , Cameroon A McMaster --- , South Africa K Naidoo --- , South Africa MG Musa --- , South AfricaDiabetes is a major economic burden and has rapidly increased worldwide. Type 2 diabetes, which accounts for 90–95% of cases, has increased particularly in the developing world. Early treatment intensification may decrease the morbidity and mortality of diabetes by lowering... -
Correlation between vitamin D serum levels and severity of diabetic retinopathy in patients with type 2 diabetes mellitus
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Gauhar Nadri --- , India Sandeep Saxena --- , India Apjit Kaur --- , India Kaleem Ahmad --- , India Pragati Garg --- , India Abbas Ali Mahdi --- , India Levent Akduman --- , USA Katarina Gazdikova --- , Slovakia Martin Caprnda --- , Slovakia Pavol Vesely --- , Slovakia Peter Kruzliak --- , Czech Republic Vladimir Krasnik --- , SlovakiaPurpose: To study the correlation of serum vitamin D levels with quantitative (central subfield thickness [CST], cube average thickness [CAT]), cross-sectional (disorganisation of retinal inner layer [DRIL] and ellipsoid zone [EZ]) and topographic parameters (retinal pigment epithelium [RPE]) on spectral... -
On law as poetry: Shelley and Tocqueville
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Joshua M. Hall --- , USAConsonant with the ongoing “aesthetic turn” in legal scholarship, this article pursues a new conception of law as poetry. Gestures in this law-as-poetry direction appear in all three main schools in the philosophy of law’s history, as follows. First, natural... -
‘Drink clean, safe water and/or other fluids through-out the day even if you do not feel thirsty’: a food-based dietary guideline for the elderly in South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Upasana Mukherjee --- , USA Carin Napier --- , South Africa Wilna Oldewage-Theron --- , USAThis review summarises information from available literature to support the dietary guideline ‘Drink Clean, Safe Water and/or Other Fluids Through-Out the Day Even if You Do Not Feel Thirsty’ set for the elderly of South Africa (SA). Water is essential... -
An introduction to the Food-Based Dietary Guidelines for the Elderly in South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Carin Napier --- , South Africa Heleen Grobbelaar --- , South Africa Wilna Oldewage-Theron --- , USAFood-based dietary guidelines (FBDGs) are not a new concept and are being used in many countries to promote healthy eating and the prevention of diet-related chronic diseases. The Food and Agriculture Organization (FAO) recommended FBDGs as an approach to prevent... -
If you drink alcohol, drink sensibly: a food-based dietary guideline for the elderly in South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Rufus Theophilus --- , USA Carin Napier --- , South Africa Wilna Oldewage-Theron --- , USAThe use and misuse of alcohol has become a public health problem among the South African (SA) elderly population, among whom risky drinking is a common practice. Previous publications encouraging alcohol use have referred to two supposedly beneficial effects of... -
Food and beverages promoting elderly health: six food-based dietary guidelines to plan good mixed meals for elderly South Africans
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Sanjoy Saha --- , USA Upasana Mukherjee --- , USA Makenzie Miller --- , USA Li-Ling Peng --- , USA Carin Napier --- , South Africa Heleen Grobbelaar --- , South Africa Wilna Oldewage-Theron --- , USAStudies have shown that the elderly are at a higher risk of developing malnutrition due to physiological and pathological changes. Several studies have confirmed that older South Africans have insufficient dietary diversity, resulting in nutritional deficiencies. Furthermore, poor and uninformed... -
Introduction to the Africa Journal of Management Supplement: The journey continues
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Moses N. Kiggundu --- , Canada Bruce T. Lamont --- , USA -
Extending partial orders on rings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Moreta Findler --- , USA Jingjing Ma --- , USAFor a commutative ring with identity, it is consistently L∗ if and only if it is consistently O∗ . This result is generalized to noncommutative rings with identity in the section 2. In the section 3, it is shown that... -
Centralizers and isomorphism preservation of minimal factors of nearring modules
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Gary L. Peterson --- , USA Stuart D. Scott --- , New ZealandIf N 1 is a nearring, V is a faithful tame N 1-module and N 2 is a nearring containing N 1 such that V is a faithful tame N 2-module and the N 1- and N 2-ideals of V... -
Division closed ℓ-rings and power positive L∗ -rings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jingjing Ma --- , USA Brandi Rygaard --- , USAA commutative non-associative division closed lattice-ordered ring with identity that is not an f -ring is presented. More conditions are provided to ensure that an associative division closed lattice-ordered ring is an f -ring. In particular, for a division closed... -
Barriers to ART adherence among school students living with HIV in Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Edith Apondi --- , Kenya Juddy Wachira --- , Kenya Rose Ayikukwei --- , Kenya Catherine Kafu --- , Kenya Jael Onyango --- , Kenya Mark Omollo --- , Kenya Becky Genberg --- , USA Winstone Nyandiko --- , Kenya Paula Braitstein --- , KenyaHIV has transformed from a serious acute illness with high rates of morbidity and mortality to a fairly easily managed chronic disease. However, children and adolescents living with HIV are yet to achieve similar improvement in their HIV care outcomes... -
Weak exceptional sequences
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Emre Sen --- , USAWe introduce weak exceptional sequence of modules which can be viewed as another modification of the standard case, different from the works of Igusa-Todorov [IT17] and Buan-Marsh [BM18]. For hereditary algebras it is equivalent to standard exceptional sequences. One important... -
Wood volume estimation strategies for trees from a Dry Forest/Savannah transition area in Piauí, Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Lailla Sabrina Queiroz Nazareno --- , Brazil Andressa Ribeiro --- , Brazil Mylla Vyctória Coutinho Sousa --- , Brazil Cynthia Wanick Vieira --- , Brazil Antonio Carlos Ferraz Filho --- , BrazilPrediction of aboveground wood volume is one of most important stages when conducting a forest inventory and making forest management decisions. This is more difficult for native forest than for plantations given the high variability of the former (trees of... -
Determinants of digital commerce repeat-purchase behaviour in South Africa: A rural citizen perspective
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Vusani Netshirando --- , South Africa Willard Munyoka --- , South Africa Armstrong Kadyamatimba --- , South AfricaDigital commerce (d-commerce) has become a powerful tool for transforming marketplaces in emerging economies across the world. However, in South Africa, d-commerce, especially among the previously disadvantaged rural citizens, is still nascent. This study investigates the effect of facilitating conditions,... -
“Just smile and wave”: Workplace requirements and emotional labour of academic staff at a South African university
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Susanna Maria O’Neil --- , South Africa Jeshika Gopal --- , South AfricaEmotional labour is a part of all work situations, and how people manage it influences their quality of work-life. We aimed to study lived emotional labour and sustainable work participation of a sample of 15 South African university lecturers (females=... -
iPrevent: Engaging youth as long-acting HIV prevention product co-researchers in Cape Town, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Miriam Hartmann --- , USA Alexandra M Minnis --- , USA Emily Krogstad --- , USA Sheily Ndwayana --- , South Africa Siyaxolisa Sindelo --- , South Africa Millicent Atujuna --- , South Africa Shannon O’Rourke --- , USA Linda-Gail Bekker --- , South Africa Elizabeth T Montgomery --- , USASouth African youth are one of the highest risk groups, globally, for HIV acquisition. Identifying prevention methods that will be acceptable and used consistently is an urgent priority. Engaging youth as co-designers is a targeted strategy to achieve the goal... -
Low acceptance of intimate partner violence by pregnant women in Uganda predicts higher uptake of HIV self-testing among their male partners
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Caroline J Vrana-Diaz --- , USA Jeffrey E Korte --- , USA Mulugeta Gebregziabher --- , USA Lauren Richey --- , USA Anbesaw Selassie --- , USA Michael Sweat --- , USA Rose Kisa --- , Uganda William Musoke --- , Uganda Harriet Chemusto --- , Uganda Esther Buregyeya --- , Uganda Joseph KB Matovu --- , Uganda Rhoda K Wanyenze --- , UgandaIntroduction: Heterosexual couples are at high risk for HIV acquisition in sub-Saharan Africa, and HIV self-testing (HST) is an additional approach to expand access to HIV testing services. However, it is not well known how gender equality is associated with... -
HIV self-testing may overcome stigma and other barriers to HIV testing among higher-socioeconomic status men in Botswana: A qualitative study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Laura M Bogart --- , USA Keonayang Kgotlaetsile --- , Botswana Nthabiseng Phaladze --- , Botswana Mosepele Mosepele --- , BotswanaIn Botswana, HIV prevalence is 20.3% among those between 15 and 49 years old, and in sub-Saharan Africa, higher income has been associated with increased HIV risk. We qualitatively explored barriers to HIV testing and acceptability of HIV self-testing (HIVST)... -
Barriers, benefits, and behaviour: Voluntary medical male circumcision ideation in a population-based sample of Zambian men
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joseph G Rosen --- , USA Maria A Carrasco --- , USA Ariana M Traub --- , USA E ‘Kuor Kumoji --- , USAReaching ambitious voluntary medical male circumcision (VMMC) coverage targets requires a deeper understanding of the multifaceted processes shaping men’s willingness to access VMMC. Guided by the Ideation Model for Health Communication, this population-based study identifies correlates of Zambian men’s future... -
Measuring transactional sex in different contexts: How do tools to measure this practice perform in rural South Africa?
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nambusi Kyegombe --- , United Kingdom Kirsten Stoebenau --- , USA Natsayi Chimbindi --- , South Africa Thembelihle Zuma --- , South Africa Maryam Shahmanesh --- , United Kingdom Janet Seeley --- , United Kingdom Joyce Wamoyi --- , TanzaniaBackground: Adolescent girls and young women across sub-Saharan Africa are at disproportionate risk of HIV infection compared to their male counterparts. Transactional sex has been identified as an important proximate risk for infection in this population. Definitions and measures of... -
The next and last pandemics – The consequences of COVID-19 and its impact on the HIV/AIDS response
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Roger Mc Lean --- , Steven Forsythe --- , USA Iris Semini --- , Switzerland Alan Whiteside --- , Canada -
Identifying the willingness to pay for eco-certified wine by south african consumers: a comparison of biodynamic, fair trade and sustainably produced wines
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Radu Mihailescu --- , the Netherlands Daniel Moscovici --- , USA Jeff Gow --- , Australia Adeline Alonso Ugaglia --- , France Lionel Valenzuela --- , Chile Azzurra Rinaldi --- , ItalyAs eco-certified wines are being produced in increasing quantities and varieties, so are the definitions and the labels that accompany them. This has resulted in confusion with regard to what type of eco-certified wines customers prefer and what prices they... -
A can of worms: Identification issues and morphological conservatism in a large sample of African Green and Bush Snakes (Colubridae: Philothamnus) from Minziro Forest, Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Tejs Gørgens Nielsen --- Globe Institute, University of Copenhagen, Denmark Sofie Holdflod Nielsen --- Globe Institute, University of Copenhagen, Denmark Peter Gravlund --- Museum of Eastern Zealand, Denmark David Moyer --- The Field Museum, Illinois, USA and Iringa Anders Galatius --- Aarhus University, Denmark Morten E Allentoft --- Globe Institute, University of Copenhagen, DenmarkThe African green snakes of the genus Philothamnus include c. 21 recognised species distributed across sub-Saharan Africa. Many of the species exhibit high morphological conservatism, exist sympatrically, and can have high population densities. This is presumably the reason why the... -
Decolonising and Africanising the Spanish studies curriculum under emergency online teaching: introducing Equatorial Guinean literature in South African higher education
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Nereida Ripero-Muñiz --- , South Africa Thato Senabe --- , South Africa Musa Maseko --- , South Africa Yolanda Reigadas --- , South AfricaThis is a reflective piece that explores the process of creating and implementing a new course at the University of the Witwatersrand on the literature of Equatorial Guinea under emergency online teaching that took place in 2020 due to the... -
Fundamental analysis, low accruals, and the accrual anomaly: Korean evidence
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Young Jun Kim --- , Republic of Korea Jung Hoon Kim --- , USA Sewon Kwon --- , Republic of Korea Su Jeong Lee --- , Republic of KoreaPrior studies in Korea document that low accrual firms yield extremely low returns, driving away abnormal returns of an accrual-based trading strategy. We examine whether the performance of an accrual-based trading strategy can be improved using fundamental analysis to distinguish... -
Priority of duties, substantive human rights, and African communalism
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Polycarp Ikuenobe --- , USAI argue for a plausible view of the African idea and practice of substantive individual rights. This view indicates that rights are a means of enhancing individual dignity in the context of a communal system of correlativity of duties and... -
A new transcendental number from the digits of NN
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Hùng Việt Chu --- , USAWe first give a summary of the history of transcendental numbers, and then we use a nice technique by G. Dresden to find a new transcendental number. In particular, while previous work looked at the last non-zero digit of nn... -
COVID-19 and hyperglycaemic emergencies: perspectives from a developing country
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Raisa Bhikoo --- , South Africa Marli Conradie-Smit --- , South Africa Gerhard Van Wyk --- , South Africa Sa’ad Lahri --- , South Africa Elizabeth Du Plessis --- , South Africa Jaco Cilliers --- , South Africa Susan Hugo --- , South Africa Ankia Coetzee --- , South Africa -
The emergence of GVCs for frontier markets: Insights from the African mobile telecommunications industry
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Mohammad Jahanbakht --- , USA Romel Mostafa --- , CanadaAn important gap in the literature on global value chains (GVCs) and bottom-of-the-pyramid markets concerns how GVCs develop to serve frontier markets and what role multinational and local firms play in that process. This paper takes a first step in... -
Developing sustainable supply chains: Evidence from entrepreneurship training in Ethiopia
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Garrick Blalock --- , USA Bourcard Nesin --- , USA Andrew M. Simons --- , USAMultinational firms often face challenges in integrating host-country suppliers into their global value chains; this is particularly the case in developing economies. Training entrepreneurs is one approach to improve supplier integration. We conducted a randomized controlled trial (RCT) to measure... -
Effect of fibre and vessel biometry on wood combustibility of native Miombo tree species
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Jonas Massuque --- , Brazil Kelly Iapuque Rodrigues de Sousa --- , Brazil Paulo Fernando Trugilho --- , BrazilFibres and vessels represent the largest proportion of anatomical elements in hardwood tree species. They exert significant effects on various properties of the wood, which, consequently, have several implications for the use of the wood. However, the effect of these... -
Machine learning and regression models to predict multiple tree stem volumes for teak
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ivaldo da Silva Tavares Júnior --- , Brazil Jianne Rafaela Mazzini de Souza --- , Brazil Lucas Sérgio de Sousa Lopes --- , Brazil Leonardo Pereira Fardin --- , Brazil Gianmarco Goycochea Casas --- , Brazil Ricardo Rodrigues de Oliveira Neto --- , Brazil Rodrigo Vieira Leite --- , Brazil Helio Garcia Leite --- , BrazilThe quantification of a stand’s wood stock is one of the most important procedures for Tectona spp. (teak) management. An optimal method for estimating tree volume must accommodate the variation of the data collected in the inventory. This study evaluated... -
A tribute to Winston Smuts Watts Trollope – a firebrand and visionary in fire research
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Navashni Govender --- , South Africa Sally Archibald --- , South Africa Susanne Vetter --- , South Africa Corli Wigley-Coetsee --- , South Africa -
Family language policy in post-genocide Matabeleland: The case of a Ndebele family
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Busani Maseko --- , South AfricaThis study focuses on the perspectives of parents in a Ndebele heritage language family in post-Gukurahundi Matabeleland in Zimbabwe. Gukurahundi is a codename for a military operation that resulted in the killing of over 20 000 mainly Ndebele speakers in... -
Tribute to a legend of southern African herpetology: Wulf Dietrich Haacke (1936–2021), with a bibliography of his herpetological contributions
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Michael F Bates --- National Museum, South Africa Graham J Alexander --- University of the Witwatersrand, South Africa Aaron M Bauer --- Villanova University, USAWindhoek-born Wulf Dietrich Haacke’s career as a herpetologist while associated with the Transvaal Museum in Pretoria spanned more than 50 years. He passed away on 30 June 2021 at the age of 84. This tribute summarises various aspects of his... -
Talent management practices and work-related outcomes for South African academic staff
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Musawenkosi Donia Saurombe --- , South Africa Emmerentia Nicolene Barkhuizen --- , South AfricaThis study explored the perception of relationships between talent management practices and work meaningfulness, happiness, and turnover intention among South African academic staff. The participants (n = 160) were from a large South African higher education institution (HEI). For a... -
Uptake of HIV testing among aging adults in Agincourt, South Africa: perception of community, social network, and individual characteristics
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ami R Moore --- , USA Anh Ta --- , USA Megan Lawson --- , USA Foster Amey --- , USAThis cross-sectional study examined the impact of perception of community, social network and individual variables on the likelihood of voluntary HIV testing of people 40 years and older living in Agincourt, South Africa. The data came from Health and Aging... -
Risk and protective factors for depressive symptoms among the youth living with HIV in Namibia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Eveline Ndinelao Kalomo --- , USA Dasha Shamrova --- , USA Jung Sim Jun --- , USA Mgori Nuru Kaddu --- , Namibia Amy Kalb --- , USA -
Procreation is intrinsically valuable because it is person producing
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Marcus William Hunt --- , USAThe article argues that procreation is intrinsically valuable because it produces persons. The essential thought of the argument is that among the valuable things in the world are not only products, but the actions by which they are produced. The... -
Hardy-Littlewood maximal operator on variable Lebesgue spaces with respect to a probability measure
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jorge Moreno --- , Venezuela Ebner Pineda --- , Ecuador Luz Rodriguez --- , Ecuador Wilfredo O. Urbina --- , USAIn this paper we are going to prove that the Hardy-Litllewood maximal operators on variable Lebesgue spaces L p(·)(µ) with respect to a probability Borel measure µ, are weak type and strong type for two conditions of regularity on the... -
The role of leaders in building research cultures in sub-Saharan African universities: A six-nation study
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Bill Buenar Puplampu --- , Ghana Stella Nkomo --- , South Africa Yvonne du Plessis --- , South Africa Jolly Byarugaba Kabagabe --- , Uganda Evelyn Chiyevo Garwe --- , Zimbabwe Juliana Namada --- , Kenya Kemi Ogunyemi --- , Nigeria Juliet Thondhlana --- , UK Inusah Abdul-Nasiru --- , Ghana Añulika Agina --- , Nigeria Kwesi Amponsah-Tawiah --- , Ghana Rosemary Danesi --- , Nigeria Justice Gameli Djokoto --- , Ghana Denise Diana Duncan --- , Ghana Joseph Lekunze --- , South Africa Simon McGrath --- , UK Joyce Ndegwa --- , Kenya Nancy Ngowa --- , Kenya Michael Ofori Ntow --- , Ghana Emily Ayieta Ondondo --- , Kenya Ravinder Rena --- , South Africa Maxwell Sandada --- , ZimbabweExisting research attributes the problem of weak research productivity of academics in African universities primarily to institutional resource poverty and inadequate research skills. However, there has been little attention to research cultures and the role of leaders in fostering productive... -
Transfer of ownership for social venture entrepreneurs: A case study in northern Tanzania
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Alexander Tetteh Kwasi Nuer --- , Ghana Gert van Dijk --- , The Netherlands Joost Jongerden --- , The Netherlands Miguel Rivera-Santos --- , USASocial Venture Entrepreneurs (SVEs) invest in supply chains with the aim to ignite businesses, but with a vision on how to transfer ownership to third parties. The present study explores the definitions and forms of ownership envisioned by local stakeholders... -
Time of permanence and rooting quality of minicuttings of eucalypt clones
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Glauce Taís de Oliveira Sousa Azevedo --- , Brazil Anderson Marcos de Souza --- , Brazil Gileno Brito de Azevedo --- , Brazil Paulo Eduardo Teodoro --- , Brazil Larissa Pereira Ribeiro Teodoro --- , Brazil José Raimundo Luduvico de Sousa --- , BrazilEstablishing the optimal time for rooting permanence and evaluation of the rooting quality of eucalypt clones allows us to optimise the production process and increase the quality of the seedlings produced. This study aimed to determine the optimal time for... -
Assessments of range-wide distribution of six African storks and their relationships with protected areas
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jonah Gula --- , USA M Clay Green --- , USA Sarah Fritts --- , USA W Richard J Dean --- , South Africa KS Gopi Sundar --- , IndiaSpecies range maps provided by the IUCN and BirdLife International are recognised to sometimes mischaracterise distribution and have resulted in inaccurate status assessments. In this study we assessed distribution trends and relationships with protected area extent for six African storks,... -
A remark on non-surjective composition operators
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Yunbai Dong --- , China Bentuo Zheng --- , USAAssume that A, B are uniform algebras on compact Hausdorff spaces X and Y, respectively, and ∂A, ∂B are the Šilov boundaries of A, B. Let T : A −1 → B− 1 be a map with T1 =... -
Translanguaging and minoritised language revitalisation in multilingual classrooms: Examining teachers’ agency
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Busani Maseko --- , South AfricaIn multilingual classrooms, pedagogical translanguaging has been touted as a transformative and empowering practice to support minoritised languages. This study examines how teachers’ orientations and attitudes towards students’ translanguaging influence their agency in the revitalisation of minoritised languages. I draw... -
Impact of COVID-19 on the global hospitality industry: a brief review of current academic literature and meta-analysis to determine primary qualitative themes
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: David S Fowler --- , USAThe purpose of this study is to examine the current literature pertaining to the impact of COVID-19 on the global hospitality industry. The research has a two-fold approach. First, a succinct examination of the literature highlights the significant negative effects... -
Linking servant leadership to customer-oriented organisational citizenship behaviour: The moderating role of perceived interactional justice
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Shaping Qiu --- , USA Ruijuan Zhang --- , China Sami Jabarkhail --- , USA Larry M. Dooley --- , USAThis study examined the association between employee servant leadership perceptions and their customer-oriented organisational citizenship behaviour (OCB), and the influence of perceived interactional justice in this relationship. Participants were 708 hospitality industry employees from across China (female = 66.53%; mean... -
When the nontrivial, small divisors of a natural number are in arithmetic progression
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Hùng Việt Chu --- , USAIannucci considered the positive divisors of a natural number n that do not exceed and found all forms of numbers whose such divisors are in arithmetic progression. In this paper, we generalize Iannucci’s result by excluding the trivial divisors 1... -
Family language policy, school language practices and language socialisation among the Tonga
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Busani Maseko --- , South Africa Sandile Mlilo --- , ZimbabweThis study investigates the interface between school language practices and children’s language socialisation among speakers of the Tonga language in Binga, Zimbabwe. It is couched in the view that extra-familial language practices and experiences have a bearing on language socialisation... -
Factors associated with poor access to HIV and sexual and reproductive health services in Nigeria for women and girls living with HIV during the COVID-19 pandemic
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Morenike Oluwatoyin Folayan --- Obafemi Awolowo University, Nigeria Olujide Arije --- Institute of Public Health, College of Health Sciences, Obafemi Awolowo University, Nigeria Amaka Enemo --- , Nigeria Aaron Sunday --- , Nigeria Amira Muhammad --- Northern Nigerian Transgender Initiative, Nigeria Hasiya yunusa Nyako --- , Nigeria Rilwan Mohammed Abdullah --- , Nigeria Henry Okiwu --- , Nigeria Veronica Akwenabuaye Undelikwo --- University of Calabar, Nigeria Pamela Adaobi Ogbozor --- Enugu State University of Science and Technology, Nigeria Oluwaranmilowo Amusan --- , Nigeria Oluwatoyin Adedoyin Alaba --- Indiana University of Pennsylvania, USA Erik Lamontagne --- , SwitzerlandAim: To determine the proportion of women and girls living with HIV (WGLHIV) who had poor access to HIV, tuberculosis and sexual and reproductive health (SRH) services in Nigeria during the COVID-19 pandemic and associated factors. -
Sequences of porous sets and an application to Kleinian Groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Andrew Lazowski --- , USAIn this paper we show that the limit of a sequence of porous sets under Hausdorff convergence is also porous. This purely topological result is then applied to Kleinian group theory in order to construct a Kleinian group with exponent... -
Instigating transformative entrepreneurship in subsistence communities: Supporting leaders' transcendence and self-determination
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Steven W. Rayburn --- Texas State University, USA Gideon Ochieng --- , KenyaThis research exposes a process of bottom-up development that supports leaders’ transcendent motives and self-determination needs to instigate transformative entrepreneurship within their communities. The process is illuminated by actions taken in development organizations working within subsistence communities. Findings reveal that... -
Institutions and training: A case of social franchising in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Judith Jacob Iddy --- University of Agder, Norway Ilan Alon --- University of Agder, Norway Benjamin C. Litalien --- School of Undergraduate Studies, University Blvd East, USAThe purpose of this paper is to explore two questions: how do institutions affect knowledge transfer in social franchises in Africa, and does training help social franchises respond to these challenges? Despite advances in the knowledge management literature, our understanding... -
Social entrepreneurs’ use of spatial bricolage to create frugal innovation in a divided urban setting
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Susanne Nilsson --- KTH Royal Institute of Technology, Stockholm, Sweden Mikael Samuelsson --- University of Cape Town, South Africa Camille Meyer --- University of Cape Town, South AfricaThis study examines how social entrepreneurs mobilize resources to innovate in divided urban settings. Over a period of two years, we followed four social start-up entrepreneurs in the city of Cape Town, South Africa, characterized by some of the highest... -
Special issue editorial: Social innovation and entrepreneurship in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: David Littlewood --- Sheffield University Management School, UK Giacomo Ciambotti --- Università Cattolica del Sacro Cuore, Italy Diane Holt --- Leeds University Business School, Laurel Steinfield --- Bentley University, USA -
Assessing infant and young child feeding priorities to inform the development of a nutrition social and behaviour change communication (SBCC) strategy during a pandemic threat
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: T Turk --- , Pakistan A Poonawala --- , Switzerland S Shulman --- , USA P Sepoloane --- , Botswana -
Warming promotes growth of seedlings of a woody encroacher in grassland dominated by C4 species
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Lusanda Ncisana --- , South Africa Ntuthuko R Mkhize --- , South Africa Peter F Scogings --- , South AfricaLittle is known of warming effects on growth and defence of woody seedlings that potentially invade grasslands. We predicted that elevated temperatures would increase growth and spine length of Vachellia sieberiana seedlings growing (1) with or without grass in the... -
“I didn’t support PrEP because I didn’t know what it was”: Inadequate information undermines male partner support for young women’s pre-exposure prophylaxis use in western Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kawango Agot --- , Kenya Miriam Hartmann --- , USA Sophie Otticha --- , Kenya Alexandra Minnis --- , USA Jacob Onyango --- , Kenya Marylyn Ochillo --- , Kenya Sarah T Roberts --- , USAThe HIV infection rate is higher among adolescent girls and young women (AGYW) in Africa than men in the same age range. Pre-exposure prophylaxis (PrEP) can be used by women discreetly; however, for most AGYW, male partner approval is desired... -
Engaging HIV-prevention ambassadors to promote oral PrEP among adolescent girls and young women: results of a Zimbabwe field test
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Morgan Garcia --- , USA Definate Nhamo --- , Zimbabwe Nicole Macagna --- , USA Takudzwa Mamvuto --- , Zimbabwe Naledi Katsande --- , Zimbabwe Giuliana Morales --- , USA Michele Lanham --- , USA Joseph Murungu --- , Zimbabwe Imelda Mahaka --- , Zimbabwe Natalie Kruse-Levy --- , Zimbabwe Kristine Torjesen --- , USAThe HIV Prevention Ambassador Training Package for Adolescent Girls and Young Women was created in collaboration with adolescent girls and young women (AGYW) to improve skills, knowledge, and attitudes about oral pre-exposure prophylaxis (PrEP) among peer “ambassadors”. It was field... -
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... -
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... -
Preliminary study on improved postharvest practices for tomato loss reduction in Nigeria, Rwanda and India
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Olubukola Motunrayo Odeyemi --- , Nigeria Lisa Kitinoja --- , USA Neeru Dubey --- , India Solange Musanase --- , Rwanda Gurbinder Singh Gill --- , USATomato production is increasing along with postharvest losses in Nigeria, Rwanda and India. Modified Commodity Systems Assessment Methodology on tomato was conducted in the study areas during the July – August 2017 harvest season to evaluate the costs and benefits... -
Critical success factors using analytic hierarchy process: Perception of professionals in the Ethiopian construction sector
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Solomon Belay --- , Ethiopia James Goedert --- , USA Asregedew Woldesenbet --- , Ethiopia Saeed Rokooei --- , USAMultiple studies have been conducted on critical success factors (CSFs) in the construction industry in developed markets but only a few studies have focused on CSFs in emerging markets. The purpose of this study is to identify and prioritize CSFs... -
Social capital and firm performance nexus: The role of new product development capability and environmental dynamism in an emerging economy
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Patrick Awusak Akanpaaba --- , Ghana Ahmed Agyapong --- , Ghana Henry Kofi Mensah --- , Ghana Samuel Yaw Akomea --- , GhanaThis paper seeks to examine the argument that the social capital and market performance link is more pronounced when it is channelled through the new product development capability of the firm. The study further argues that the indirect effect of... -
Microfoundations of technology cluster emergence in emerging economies: Mindsets of natives and non-natives in Johannesburg, South Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Brett Anitra Gilbert --- , USAWhere technology clusters are concerned, extant research has primarily highlighted those that are situated in developed economies. The literature shows that immigrants – those who have moved to a region from other places – have been instrumental in the technology... -
Characterizing division closed lattice-ordered rings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jingjing Ma --- , USAIn this paper, we characterize various division closed lattice-ordered rings with the identity. -
Co-branding hotel owners and operators to increase willingness to pay
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Elizabeth A Whalen --- Middle Tennessee State University, USA Annamarie D Sisson --- Southern Connecticut State University, USAAlthough hotel brands are well established in the industry, customers have not been educated about the different kinds of properties, nor has hotel structure been utilised as a functional marketing tool. Drawing on previous studies, the purpose of this study... -
“When you mix the best of high society with the best of high society”: culinary cannabis and the US hospitality industry
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Alana N Seaman --- University of North Carolina Wilmington, USAThe culinary use of cannabis in the US has increased dramatically in the wake of relaxed federal and state laws governing the production, distribution, possession and use of it and its derivatives. While cannabis refers to both hemp and marijuana... -
Some notes on the paper “On best proximity points of interpolative proximal contractions”
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: M. Gabeleh --- Ayatollah Boroujerdi University, Iran J. Markin --- , USAIn a recent paper [I. Altun and A. Tasdemir, On best proximity points of interpolative proximal contractions, Quaestiones Math. (2020), DOI: 10.2989/16073606.2020.1785576] the authors proved two best proximity point theorems for a new class of non-self mappings, called interpolative Reich-Rus-Ćirić... -
Fear of COVID-19, perceived academic stress, future anxiety, and psychological distress of Ghanaian university students: A serial mediation examination
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nutifafa Eugene Yaw Dey --- University of Ghana, Ghana Mabel Oti-Boadi --- University of Ghana, Ghana Esther Malm --- Murray State University, USA Roberta Kekle Selormey --- University of Ghana, Ghana Kenneth Owusu Ansah --- University of Ghana, GhanaThe study examined the direct and indirect relationships between fear of COVID-19 (FC), perceived academic stress (PAS), future anxiety (FA), and psychological distress (PD) among students in Ghana. Students (n = 241; female= 64.1%; mean age= 21.54 years, SD =... -
Helly-type results for 3-disjoint families of convex bodies in the plane
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Zokhrab Mustafaev --- University of Houston-Clear Lake, USA Jamesley Norvil --- University of Houston-Clear Lake, USAIn this note, we prove that a family of non-overlapping, 3-disjoint convex bodies in the plane with the property S(n) will also have the property S(n + 1) for n ≥ 5. This result leads confirming the conjecture of Revenko-Soltan. -
Relationships between spacing, productivity and profitability of eucalypt plantations in a small rural property in south-eastern Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Gabriel Soares Lopes Gomes --- Universidade Federal do Espírito Santo, Brazil Sílvio Nolasco de Oliveira Neto --- Universidade Federal de Viçosa, Brazil Helio Garcia Leite --- Universidade Federal de Viçosa, Brazil Márcio Lopes da Silva --- Universidade Federal de Viçosa, Brazil Lucas Sérgio de Sousa Lopes --- Universidade Federal de Viçosa, Brazil Bruno Leão Said Schettini --- Universidade Federal de Viçosa, BrazilTree cultivation spacing can influence productivity and wood quality, with silvicultural, technological and economic implications. This study aimed to estimate the production and provide an economic analysis of Eucalyptus urophylla × Eucalyptus grandis stands as a function of planting spacing... -
The effects of COVID-19 on food insecurity, financial vulnerability and housing insecurity among women and girls living with or at risk of HIV in Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Erik Lamontagne --- , Switzerland Morenike Oluwatoyin Folayan --- Obafemi Awolowo University, Nigeria Olujide Arije --- Obafemi Awolowo University, Nigeria Amaka Enemo --- , Nigeria Aaron Sunday --- , Nigeria Amira Muhammad --- Northern Nigerian Transgender Initiative, Nigeria Hasiya Yunusa Nyako --- , Nigeria Rilwan Mohammed Abdullah --- , Nigeria Henry Okiwu --- , Nigeria Veronica Akwenabuaye Undelikwo --- University of Calabar, Nigeria Pamela Adaobi Ogbozor --- Enugu State University of Science and Technology, Nigeria Oluwaranmilowo Amusan --- Obafemi Awolowo University, Nigeria Oluwatoyin Adedoyin Alaba --- Obafemi Awolowo University, NigeriaAim : Women and girls living with or at high risk of acquiring HIV (WGL&RHIV) in Africa are economically vulnerable. This study aims to advance understanding of the economic impact of COVID-19 on WGL&RHIV and to identify the factors associated... -
Associations between COVID-19 vaccine hesitancy and the experience of violence among women and girls living with and at risk of HIV in Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Morenike Oluwatoyin Folayan --- Obafemi Awolowo University, Nigeria Olujide Arije --- Obafemi Awolowo University, Nigeria Amaka Enemo --- , Nigeria Aaron Sunday --- , Nigeria Amira Muhammad --- Northern Nigerian Transgender Initiative, Nigeria Hasiya Yunusa Nyako --- , Nigeria Rilwan Mohammed Abdullah --- , Nigeria Henry Okiwu --- , Nigeria Erik Lamontagne --- , SwitzerlandAim : Women and girls living with and at high risk of HIV (WGL&RHIV) had an increased risk for gender-based violence (GBV) during COVID-19. The study aimed to assess the associations between vaccine hesitancy and GBV, HIV status and psychological... -
Estimating the cost and efficiency gain of rolling out a multi-month dispensing programme for antiretroviral treatment in Tanzania
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: George Ruhago --- Muhimbili University of Health and Allied Sciences, Tanzania Steven Forsythe --- , USA Roland Van de Ven --- , USA Louis Apicella --- , USABackground: Globally, efforts to curtail the HIV pandemic are growing. The Joint United Nations Programme on HIV and AIDS (UNAIDS) and partners set the 95-95-95 targets to be achieved by 2025. Tanzania’s ongoing transition from single-month ARV to longer multi-month... -
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 =... -
Genotypic variability in nutrient uptake and use efficiency in chickpea grown under low phosphorus availability in a Mediterranean climate
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Hanine Loucif --- Université Djilali Bounaama de Khemis Miliana, Algeria Brahim Bousalhih --- Université Djilali Bounaama de Khemis Miliana, Algeria Rebiha Chaoui --- Université Djilali Bounaama de Khemis Miliana, Algeria Jean Jacques Drevon --- Université de Montpellier, France Mohamed Farissi --- Sultan Moulay Slimane University, Morocco Mohamed Lazali --- Université Djilali Bounaama de Khemis Miliana, AlgeriaLow phosphorus (P) availability is a major constraint for chickpea production. Consequently, P-efficient genotypes can improve productivity under conditions where the higher application of P is not economical. This study was conducted to characterise four chickpea genotypes for nutrient uptake... -
Assessment of the acoustic change in heat-treated Pinus elliottii and Bertholletia excelsa wood from homogeneous plantations in Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Daiana Sousa de Jesus --- Federal Rural University of Rio de Janeiro, Brazil Jonnys Paz Castro --- Federal Rural University of Rio de Janeiro, Brazil Taiane Guedes --- Universidade Federal de Lavras, Brazil José Reinaldo Moreira da Silva --- Universidade Federal de Lavras, Brazil João Vicente de Figueiredo Latorraca --- Federal Rural University of Rio de Janeiro, Brazil Alexandre Miguel do Nascimento --- Federal Rural University of Rio de Janeiro, BrazilHeat treatment has been used in wood to improve its technological properties, but due to the complex nature of wood, it is necessary to carry out analyses to confirm the changes, and also to investigate which temperatures and protocols are... -
Honouring Christopher Kobla Dewornu
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: George Worlasi Kwasi Dor --- University of Mississippi, USAChristopher Kobla Dewornu, a retired Inspector General of Police for Ghana and a member of the Council of State, is a multi-talented musician-composer, lead singer and drummer. Since his national political responsibilities overshadowed his public musical practice and visibility, a... -
Notes on normal p-complements and monomial characters
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Xiaoyou Chen --- University of Technology, China Yong Yang --- Texas State University, USALet G be a finite group and Irr(G) be the set of irreducible (complex) characters of G. Let χ ∈ Irr(G) and write cod(χ) = |G : ker χ|/χ(1) as the codegree of χ, where ker χ is the kernel... -
Solvability and nilpotency of expanded groups relative to the nearring of zero and congruence preserving functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Gary L. Peterson --- James Madison University, USA Stuart D. Scott --- University of Auckland, New ZealandIn this paper we study solvability and nilpotency of an expanded group relative to the nearring of zero and congruence preserving functions of the expanded group. A particular case of interest is when the expanded group is a nearring module... -
Treating AIDS: Dilemmas of unequal access in Uganda
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Susan Reynolds Whyte --- Institute of Anthropology, University of Copenhagen, Michael A. Whyte --- Institute of Anthropology, University of Copenhagen, Lotte Meinert --- Department of Social Anthropology, University of Aarhus, Betty Kyaddondo --- AIDS Information Centre,The price of antiretroviral (ARV) medicines in Uganda has fallen dramatically in recent years and more people are under treatment. By mid-2003 it was estimated that 10 000 people were taking ARVs. Drawing on participant observation, qualitative interviews, work with... -
Impact of long-term civil disorders and wars on the trajectory of HIV epidemics in sub-Saharan Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: David Gisselquist --- , USAFrom the mid-1970s, seven countries in sub-Saharan Africa have experienced civil disorders and wars lasting for at least 10 years. In two — Sierra Leone during 1991–2002, and Somalia from 1988 and continuing — adult HIV prevalence remained below 1%... -
Social constructions of gender roles, gender-based violence and HIV/AIDS in two communities of the Western Cape, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Anna Strebel --- Social Aspects of HIV/AIDS and Health Programme of the Human Sciences Research Council, South Africa Mary Crawford --- Psychology Department, University of Conneticut, USA Tamara Shefer --- Women and Gender Studies Programme, University of the Western Cape, South Africa Allanise Cloete --- Social Aspects of HIV/AIDS and Health Programme of the Human Sciences Research Council, South Africa Nomvo Dwadwa-Henda --- Social Aspects of HIV/AIDS and Health Programme of the Human Sciences Research Council, South Africa Michelle Kaufman --- University of Conneticut, USA Leickness Simbayi --- Social Aspects of HIV/AIDS and Health Research Programme, Kgobati Magome --- Social Aspects of HIV/AIDS and Health Research Programme of the Human Sciences Research Council, South Africa Seth Kalichman --- Psychology Department, University of Conneticut, USAThe links between gender roles, gender-based violence and HIV/AIDS risk are complex and culturally specific. In this qualitative study we investigated how women and men in two black communities in the Western Cape, South Africa, constructed their gender identities and... -
Linking anthropological analysis and epidemiological evidence: Formulating a narrative of HIV transmission in Acholiland of northern Uganda
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Michael Westerhaus --- Global Health Equity track, Brigham and Women's Hospital, USAFor twenty years, a region of northern Uganda known as Acholiland has been heavily affected by war, leading to the formation of internally displaced people's camps, rape, transactional sex and child abductions. While it is clear that the war has... -
Editorial review: Male circumcision, gender and HIV prevention in sub-Saharan Africa: a (social science) research agenda
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karl Peltzer --- Human Sciences Research Council, Cheikh I Niang --- Université Cheikh Anta Diop, Adamson S. Muula --- University of Malawi, Kasonde Bowa --- University Teaching Hospital Lusaka, Linus Okeke --- University of Ibadan, Hamadou Boiro --- Université Cheikh Anta Diop, Chiweni Chimbwete --- University of Witwatersrand, -
For the common good: Measuring residents' efforts to protect their community from drug- and sex-related harm
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Pedro Mateu-Gelabert --- NDRI, Inc., USA Melissa Bolyard --- Emory University, USA Carey Maslow --- New York City Department of Health and Mental Hygiene, Milagros Sandoval --- NDRI, Inc., USA Peter Flom --- BrainScope, Samuel R Friedman --- NDRI, Inc., USAPeople in high-risk neighbourhoods try to protect their friends, neighbours, relatives and others from the social and physical risks associated with sex and drug use. This paper develops and validates a community-grounded questionnaire to measure such ‘intravention’ (health-directed efforts to... -
Private pharmacies in an integrated approach to HIV/AIDS services
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: João Carapinha --- PharmaLogica Company, South Africa and USA -
Provider-initiated HIV testing in health care settings: Should it include client-centered counselling?
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Susan M Kiene --- Medicine and Community Health (Research), Brown University, Michael Stein --- Medicine and Community Health, Brown University, USA Moses Bateganya --- Makerere University (Internal Medicine), Rhoda Wanyenze --- Makerere University School of Public Health-CDC HIV Fellowship Programme, Uganda Kenneth Mayer --- The Fenway Institute/Fenway Health, Haruna Lule --- Gombe Hospital, UgandaTo increase access to HIV testing, the WHO and CDC have recommended implementing provider-initiated HIV testing (PITC). To address the resource limitations of the PITC setting, WHO and CDC suggest that patient-provider interactions during PITC may need to focus on... -
A qualitative exploration of HIV-positive pregnant women's decision-making regarding abortion in Cape Town, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Phyllis Orner --- Women's Health Research Unit in the School of Public Health and Family Medicine, University of Cape Town, Maria de Bruyn --- Ipas, USA Jane Harries --- Women's Health Research Unit in the School of Public Health and Family Medicine, University of Cape Town, Diane Cooper --- Women's Health Research Unit in the School of Public Health and Family Medicine, University of Cape Town,HIV-positive women's abortion decisions were explored by: (i) investigating influencing factors; (ii) determining knowledge of abortion policy and public health services; and (iii) exploring abortion experiences. In-depth interviews were held with 24 HIV-positive women (15 had an abortion; 9 did... -
Perceived stigma among patients receiving antiretroviral treatment: A prospective randomised trial comparing an m-DOT strategy with standard-of- care in Kenya
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Susan Kaai --- Department of Health Studies and Gerontology, University of Waterloo, Canada Sandra Bullock --- Department of Health Studies and Gerontology, University of Waterloo, Canada Avina Sarna --- Population Council, Matthew Chersich --- Centre for Health Policy, University of the Witwatersrand, Stanley Luchters --- International Centre for Reproductive Health (ICRH), Department of Obstetrics and Gynecology, Ghent University, Belgium Scott Geibel --- Population Council, Paul Munyao --- ICAP, Kenya Kishorchandra Mandaliya --- , Kenya Marleen Temmerman --- Obstetrical Department, Ghent University Hospital, Naomi Rutenberg --- Population Council,HIV and AIDS remain highly stigmatised. Modified directly observed therapy (m-DOT) supports antiretroviral treatment (ART) adherence but little is known about its association with perceived stigma in resource-constrained settings. In 2003, 234 HIV-infected adults enrolled in a two-arm randomised trial... -
An assessment of sex work in Swaziland: barriers to and opportunities for HIV prevention among sex workers
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Shalote Chipamaunga --- Faculty of Health Sciences, Centre for Health Science Education, University of the Witwatersrand, Adamson S Muula --- University of Malawi College of Medicine, Ronald Mataya --- Loma Linda University School of Public Health, USAThe HIV situation in virtually all southern African countries is a generalised epidemic. Despite the fact that almost all adult age and social groups have high HIV prevalence estimates, sex workers are disproportionally affected, with prevalence estimates higher than the... -
Perception of risk of HIV and sexual risk behaviours among students in the United States, Turkey and South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Adedeji Adefuye --- HIV/AIDS Research and Policy Institute, Tititlayo C Abiona --- HIV/AIDS Research and Policy Institute, Joseph A Balogun --- College of Health Sciences, Chicago State University, USA Seyi Ladele Amosun --- Division of Physiotherapy at the School of Health & Rehabilitation Sciences, Faculty of Health Sciences, University of Cape Town, South Africa Jose Frantz --- Department of Physiotherapy, University of the Western Cape, South Africa Yavuz Yakut --- Department of Physiotherapy and Rehabilitation of Faculty of Health Sciences, Hacettepe University, TurkeyThe aim of this study was to examine HIV sexual risk behaviours and perception of HIV risk among 1 095 students from the United States of America (US), Turkey and South Africa. Randomly selected students who were enrolled in general... -
Political and socio-economic instability: does it have a role in the HIV/AIDS epidemic in sub-Saharan Africa?
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Ramaswamy Premkumar [CXX0001] Achilles Tebandeke --- Walden University, USAMany sub-Saharan African countries are confronted by the HIV/AIDS epidemic. This article reviews academic literature in the social sciences and health to discover why HIV/AIDS has become an epidemic in sub-Saharan Africa and not in other parts of the world... -
Perceptions of door-to-door HIV counselling and testing in Botswana
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karen Kroeger --- US Centers for Disease Control and Prevention (CDC), Allan W Taylor --- US Centers for Disease Control and Prevention (CDC), Heather M Marlow --- University of North Carolina at Chapel Hill, USA Douglas T Fleming --- Bristol-Myers Squib Company, USA Vanessa Beyleveld --- Premiere Personnel, Botswana Mary Grace Alwano --- CTS Global Inc., Mabel Tebogo Kejelepula --- Ministry of Health, Botswana Kentsenao Busang Chilume --- Botswana National AIDS Coordination Agency, Botswana Dawn K Smith --- US Centers for Disease Control and Prevention (CDC), Thierry Roels --- CDC's Division of Global HIV/Aids Programme, Peter Kilmarx --- US Centers for Disease Control and Prevention (CDC), ZimbabwePrevalence of HIV infection in Botswana is among the highest in the world, at 23.9% of 15 – 49-year-olds. Most HIV testing is conducted in voluntary counselling and testing centres or medical settings. Improved access to testing is urgently needed... -
Factors underlying taking a child to HIV care: implications for reducing loss to follow-up among HIV-infected and -exposed children
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Juddy Wachira [d221e18] Susan E Middlestadt Rachel Vreeman Paula BraitsteinObjective: With the aim of reducing pediatric loss to follow-up (LTFU) from HIV clinical care programs in sub-Saharan Africa, we sought to understand the personal and socio-cultural factors associated with the behavior of caregivers taking HIV-infected and -exposed children for... -
HIV knowledge, disclosure and sexual risk among pregnant women and their partners in rural South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Molatelo Elisa Shikwane --- , South Africa Olga M. Villar-Loubet --- , USA Stephen M. Weiss --- , USA Karl Peltzer --- , South Africa Deborah L. Jones --- , USAPartner involvement has been deemed fundamental for the prevention of mother-to-child transmission (PMTCT) of HIV, although it remains difficult to achieve. This study aimed to explore the attitudes and behaviours of pregnant women and their partners who participated in a... -
Consensus on context-specific strategies for reducing the stigma of human immunodeficiency virus/acquired immunodeficiency syndrome in Zambézia Province, Mozambique
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Abraham Mukolo --- , , USA Isabel Torres --- , Mozambique Ruth M. Bechtel --- , Mozambique Mohsin Sidat --- , , Mozambique Alfredo E. Vergara --- , USAStigma has been implicated in poor outcomes of human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) care. Reducing stigma is important for HIV prevention and long-term treatment success. Although stigma reduction interventions are conducted in Mozambique, little is known about the... -
Feasibility and acceptability of a bar-based sexual risk reduction intervention for bar patrons in Tshwane, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Neo K. Morojele --- , , South Africa Naledi Kitleli --- , , South Africa Kgalabi Ngako --- , , South Africa Connie T. Kekwaletswe --- , , South Africa Sebenzile Nkosi --- , , South Africa Katherine Fritz --- , USA Charles D.H. Parry --- , , South AfricaAlcohol consumption is a recognised risk factor for HIV infection. Alcohol serving establishments have been identified as appropriate venues in which to deliver HIV prevention interventions. This paper describes experiences and lessons learnt from implementing a combined HIV prevention intervention... -
Perceptions about the acceptability and prevalence of HIV testing and factors influencing them in different communities in South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Yoliswa Ntsepe --- , , South Africa Leickness C. Simbayi --- , , South Africa Olive Shisana --- , South Africa Thomas Rehle --- , , South Africa Musawenkosi Mabaso --- , , South Africa Nolusindiso Ncitakalo --- , , South Africa Alicia Davids --- , , South Africa Yogandra Dhee Naidoo --- , , South AfricaHIV counselling and testing (HCT) is considered important because it is an entry point to a comprehensive continuum of care for HIV/AIDS. The South African Department of Health launched an HCT campaign in April 2010, and this reached 13,269,746 people... -
Experiences of HIV-related stigma among HIV-positive older persons in Uganda – a mixed methods analysis
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Monica O. Kuteesa --- , Uganda Stuart Wright --- , , UK Janet Seeley --- , Uganda Joseph Mugisha --- , Uganda Eugene Kinyanda --- , Uganda Frederick Kakembo --- , USA Richard Mwesigwa --- , USA Francis Scholten --- , UgandaThere is limited data on stigma among older HIV-infected adults in sub-Saharan Africa. We describe the experiences of stigma and disclosure in a cohort of HIV-positive older people in Uganda. Using data from the Wellbeing of Older Peoples' Study of... -
Acceptability, feasibility and challenges of implementing an HIV prevention intervention for people living with HIV/AIDS among healthcare providers in Mozambique: Results of a qualitative study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Prafulta Jaiantilal --- , , Mozambique Sarah A. Gutin --- , , USA Beverley Cummings --- , , Mozambique Francisco Mbofana --- , , Mozambique Carol Dawson Rose --- , , USADespite the Mozambique government's efforts to curb human immunodeficiency virus (HIV)/acquired immune deficiency syndrome (AIDS), national prevalence is 11.5% and support is needed to expand HIV-related services and improve program quality. Positive prevention (PP) programs, which prioritize HIV prevention with... -
A case study of school support and the psychological, emotional and behavioural consequences of HIV and AIDS on adolescents
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Olubusayo Aduke Asikhia --- , , South Africa Kesh Mohangi --- , , South AfricaVarious studies have reported a huge increase in the numbers of orphaned adolescents in Sub-Saharan Africa and its effects on their psychological, emotional and behavioural development. Yet, their needs are seldom recognised or adequately addressed in policy and programmes.This article... -
Prevalence of prenatal depression and associated factors among HIV-positive women in primary care in Mpumalanga province, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karl Peltzer --- , , South Africa Violeta J. Rodriguez --- , , USA Deborah Jones --- , , USAThis study aimed to assess the prevalence of depressed symptoms and associated factors in prenatal HIV-positive women in primary care facilities in rural South Africa. In a cross-sectional study, 663 HIV-positive prenatal women in 12 community health centres in Mpumalanga... -
A livelihood intervention to improve economic and psychosocial well-being in rural Uganda: Longitudinal pilot study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Bernard Kakuhikire --- , Uganda Diego Suquillo --- , USA Elly Atuhumuza --- , Uganda Rumbidzai Mushavi --- , USA Jessica M. Perkins --- , USA Atheendar S. Venkataramani --- , USA Sheri D. Weiser --- , USA David R. Bangsberg --- , USA Alexander C. Tsai --- , USAHIV and poverty are inextricably intertwined in sub-Saharan Africa. Economic and livelihood intervention strategies have been suggested to help mitigate the adverse economic effects of HIV, but few intervention studies have focused specifically on HIV-positive persons. We conducted three pilot... -
‘I thought if I marry the prophet I would not die’: The significance of religious affiliation on marriage, HIV testing, and reproductive health practices among young married women in Zimbabwe
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Denise Dion Hallfors --- , USA Bonita J. Iritani --- , USA Lei Zhang --- , USA Shane Hartman --- , USA Winnie K. Luseno --- , USA Elias Mpofu --- , , Australia Simbarashe Rusakaniko --- , , ZimbabweThis study examines the association between religious affiliation and reasons for marriage, perceived church attitudes, and reproductive health-seeking behaviors, including HIV testing, among young women in eastern rural Zimbabwe. The sample comprised women (N = 35) who had married by 2012 while... -
Obituary: Dr Dimitri Tassiopoulos
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Nancy Phaswana-Mafuya --- , , USA -
The Achilles’ heel of prevention to mother-to-child transmission of HIV: Protocol implementation, uptake, and sustainability
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Violeta J. Rodriguez --- , , USA Richard P. LaCabe --- , , USA C. Kyle Privette --- , , USA K. Marie Douglass --- , USA Karl Peltzer --- , South Africa Gladys Matseke --- , South Africa Audrey Mathebula --- , South Africa Shandir Ramlagan --- , South Africa Sibusiso Sifunda --- , South Africa Guillermo “Willy” Prado --- , USA Viviana Horigian --- , , USA Stephen M. Weiss --- , , USA Deborah L. Jones --- , , USAThe Joint United Nations Programme on HIV and AIDS proposed to reduce the vertical transmission of HIV from ∼72,200 to ∼8300 newly infected children by 2015 in South Africa (SA). However, cultural, infrastructural, and socio-economic barriers hinder the implementation of... -
A workplace intervention program and the increase in HIV knowledge, perceived accessibility and use of condoms among young factory workers in Thailand
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Aphichat Chamratrithirong --- , Thailand Kathleen Ford --- , USA Sureeporn Punpuing --- , Thailand Pramote Prasartkul --- , ThailandVulnerability to Human Immunodeficiency Virus (HIV) infection among factory workers is a global problem. This study investigated the effectiveness of an intervention to increase AIDS knowledge, perceived accessibility to condoms and condom use among young factory workers in Thailand. The... -
Effect of a multicomponent behavioural PMTCT cluster randomised controlled trial on HIV stigma reduction among perinatal HIV positive women in Mpumalanga province, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karl Peltzer --- , South Africa Suat Babayigit --- , , USA Violeta J. Rodriguez --- , , USA Jenny Jean --- , USA Sibusiso Sifunda --- , South Africa Deborah L. Jones --- , , USABackground: We evaluate the impact a multicomponent, behavioural, prevention of mother to child transmission (PMTCT), cluster randomised controlled trial on HIV stigma reduction among perinatal HIV infected women in rural South Africa. Methods: In a cluster randomised controlled trial, twelve... -
Factors associated with knowledge and awareness of HIV/AIDS among married women in Bangladesh: evidence from a nationally representative survey
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Md. Ashiqul Haque --- , , Bangladesh Md. Sha Newaj Hossain --- , , Bangladesh Muhammad Abdul Baker Chowdhury --- , , USA Md. Jamal Uddin --- , , BangladeshWomen in Bangladesh share a greater risk of Human Immunodeficiency Virus (HIV)/Acquired Immune Deficiency Syndrome (AIDS) infection compared to men. Levels of knowledge and awareness largely contribute to the prevalence of the HIV epidemic and its consequences. So, it is... -
Evaluation of a community-based ART programme after tapering home visits in rural Sierra Leone: a 24-month retrospective study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: J. Daniel Kelly --- , , USA Raphael Frankfurter --- , , USA Gregoire Lurton --- , , USA Sulaiman Conteh --- , Sierra Leone Susannah F. Empson --- , , USA Fodei Daboh --- , Sierra Leone Brima Kargbo --- , Sierra Leone Thomas Giordano --- , , USA Joia Mukherjee --- , , USA M. Bailor Barrie --- , Sierra LeoneEvaluations of community-based antiretroviral therapy (ART) programmes have demonstrated positive outcomes, but little is known about the impact of tapering community-based ART. The objective of this study was to assess 24-month HIV retention outcomes of a community-based ART programme and... -
Exploring the acceptability of Option B plus among HIV-positive Nigerian women engaged and not engaged in the prevention of mother-to-child transmission of HIV cascade: a qualitative study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Salome C. Erekaha --- , Nigeria Llewellyn J. Cornelius --- , , USA Melissa L. Bessaha --- , , USA Abdulmumin Ibrahim --- , , Nigeria Gabriel D. Adeyemo --- , Nigeria Mofoluwake Fadare --- , Nigeria Manhattan Charurat --- , , USA Echezona E. Ezeanolue --- , USA Nadia A. Sam-Agudu --- , NigeriaThe acceptability of lifelong antiretroviral therapy (ART) among HIV-positive women in high-burden Nigeria, is not well-known. We explored readiness of users and providers of prevention of mother-to-child transmission of HIV (PMTCT) services to accept lifelong ART -before Option B plus... -
Determinants of disclosure and non-disclosure of HIV-positive status, by pregnant women in rural South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Shandir Ramlagan --- , , South Africa Gladys Matseke --- , , the Netherlands Violeta J. Rodriguez --- , , USA Deborah L. Jones --- , , USA Karl Peltzer --- , , South Africa Robert A.C. Ruiter --- , , the Netherlands Sibusiso Sifunda --- , , South AfricaDisclosure of HIV status remains one of the major challenges to the effectiveness of the prevention of mother to child transmission of HIV in rural areas in South Africa. This study aimed at assessing the determinants of HIV status disclosure... -
The pull of soccer and the push of Xhosa boys in an HIV and drug abuse intervention in the Western Cape, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Melissa Medich --- , , USA Deborah Mindry --- , , USA Mark Tomlinson --- , , South Africa Mary Jane Rotheram-Borus --- , , USA Jason Bantjes --- , , South Africa Dallas Swendeman [cor1]There is growing interest in engaging men and boys in health and development programmes targeting the intersection of HIV risk, substance abuse, and violence. Understanding the conceptualisations of masculinities or masculine identities that shape both behaviours and opportunities for intervention... -
HIV fatalism and engagement in transactional sex among Ugandan fisherfolk living with HIV
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Katelyn M. Sileo --- , , USA Laura M. Bogart --- , USA Glenn J. Wagner --- , USA William Musoke --- , Uganda Rose Naigino --- , , Uganda Barbara Mukasa --- , Uganda Rhoda K. Wanyenze --- , , UgandaHIV fatalism, or the belief that HIV acquisition and mortality is out of one's control, is thought to contribute to HIV risk in fishing populations in East Africa. The objective of this cross-sectional study was to investigate the association between... -
Navigating intimate sexual partnerships in an era of HIV: dimensions of couple relationship quality and satisfaction among adults in Eswatini and linkages to HIV risk
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Allison Ruark --- , , USA Edward C. Green --- , , USA Amy Nunn --- , USA Caitlin Kennedy --- , USA Alfred Adams --- , Netherlands Thandeka Dlamini-Simelane --- , Netherlands Pamela J. Surkan --- , USACouple relationship functioning impacts individual health and well-being, including HIV risk, but scant research has focused on emic understandings of relationship quality in African populations. We explored relationship quality and satisfaction in Eswatini (formerly Swaziland) using data from 148 in-depth... -
Maternal and infant antiretroviral therapy adherence among women living with HIV in rural South Africa: a cluster randomised trial of the role of male partner participation on adherence and PMTCT uptake
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Deborah L. Jones --- University of Miami Miller School of Medicine, USA Violeta J. Rodriguez --- University of Miami Miller School of Medicine, USA Manasi Soni Parrish --- University of Miami Miller School of Medicine, USA Tae Kyoung Lee --- University of Miami Miller School of Medicine, USA Stephen M. Weiss --- University of Miami Miller School of Medicine, USA Shandir Ramlagan --- HIV/AIDS/STIs and TB (HAST) Research Programme, Human Sciences Research Council, South Africa Karl Peltzer --- Ton Duc Thang University, Vietnam‘Mother-to-child transmission of HIV’ can occur during the period of pregnancy, childbirth, or breastfeeding. ‘Prevention of mother-to-child transmission of HIV’ (PMTCT) in Mpumalanga Province, South Africa, is especially vital as the prevalence of HIV is 28.2% in women aged 15–49... -
Project Last Mile and the development of the Girl Champ brand in eSwatini: engaging the private sector to promote uptake of health services among adolescent girls and young women
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Marie A. Brault --- Yale School of Public Health, USA Sarah Christie --- Yale School of Public Health, USA Sasha Aquino --- Olson Zaltman Associates, USA Abigail Rendin --- Olson Zaltman Associates, USA Amanda Manchia --- Project Last Mile, South Africa Leslie A. Curry --- Yale School of Public Health, USA Erika L. Linnander --- Yale School of Public Health, USAIn eSwatini and across sub-Saharan Africa, adolescent girls and young women (AGYW) are at significantly higher risk of HIV infection and poorer sexual and reproductive health (SRH) than their male counterparts. AGYW demonstrate low demand for SRH services, further contributing... -
Traditional healers as client advocates in the HIV-endemic region of Maputo, Mozambique: results from a qualitative study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Radhika Sundararajan --- University of California, USA Patricio V. Langa --- Universidade Eduardo Mondlane, Mozambique Trisha Morshed --- Vituity Physician Group, USA Sandra Manuel --- Universidade Eduardo Mondlane, MozambiqueTraditional healers are commonly utilised throughout sub-Saharan Africa instead of – and in concert with – biomedical facilities. Traditional healers are trusted providers and prominent community members and could be important partners in improving engagement with HIV services in endemic... -
Making sense of fidelity: young Africans’ cross-national and longitudinal representations of fidelity and infidelity in their HIV-related creative narratives, 1997–2014
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Robyn Singleton --- Banyan Communications, USA Manon Billaud --- Rollins School of Public Health at Emory University, USA Haley McLeod --- Rollins School of Public Health at Emory University, USA Georges Tiendrebeogo --- Laafi Consulting, Burkina Faso Fatim Dia --- Rollins School of Public Health at Emory University, USA Chris Obong’o --- PATH, Kenya Siphiwe Nkambule-Vilakati --- Super Buddies Club, Swaziland Benjamin Mbakwem --- Community and Youth Development Initiatives, Nigeria Gaelle Sabben --- Rollins School of Public Health at Emory University, USA Kate Winskell --- Rollins School of Public Health at Emory University, USAMutual fidelity and partner reduction have been identified as key behavioural strategies to prevent HIV transmission in sub-Saharan Africa, particularly following recognition of the role that multiple concurrent sexual partnerships play in driving generalised HIV epidemics. We analysed social representations... -
Forgetting to take HIV antiretroviral therapy: a qualitative exploration of medication adherence in the third decade of the HIV epidemic in the United States
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: R. Freeman --- , USA M. Gwadz --- New York University Silver School of Social Work, USA K. Francis --- New York University Silver School of Social Work, USA E. Hoffeld --- New York University Silver School of Social Work, USAOptimal adherence to HIV antiretroviral therapy (ART) is challenging, and racial/ethnic disparities in adherence rates are substantial. The most common reason persons living with HIV (PLWH) give for missed ART doses is forgetting. We took a qualitative exploratory approach to... -
Assessing sexual practices and beliefs among university students in Khartoum, Sudan; a qualitative study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Husameddin Farouk Elshiekh --- Maastricht University, The Netherlands Hein de Vries --- Maastricht University, The Netherlands Ciska Hoving --- Maastricht University, The NetherlandsUniversity students in Sudan are more at risk of contracting HIV than the general population, due to a high rate of sexual activity and low uptake of preventive measures such as condoms. Hence, they are considered an important target for... -
Pre-exposure prophylaxis as an opportunity for engagement in HIV prevention among South African adolescents
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Ashleigh LoVette --- Brown University School of Public Health, USA Caroline Kuo --- Brown University School of Public Health, USA Danielle Giovenco --- University of North Carolina at Chapel Hill, USA Jacqueline Hoare --- University of Cape Town, USA Kristen Underhill --- Columbia Law School, USA Don Operario --- Brown University School of Public Health, USAPre-exposure prophylaxis (PrEP) offers a potential biomedical strategy to reduce HIV incidence among adolescent populations disproportionately affected by HIV. There is limited evidence on the social and clinical implications, including engagement in HIV prevention efforts, of PrEP for South African... -
‘I can't go to her when I have a problem’: sexuality communication between South African adolescent girls and young women and their mothers
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Zoe Duby --- South African Medical Research Council, South Africa Wilmé Verwoerd --- University of Cape Town, South Africa Katja Isaksen --- University of Bergen, Norway Kim Jonas --- South African Medical Research Council, South Africa Kealeboga Maruping --- South African Medical Research Council, South Africa Janan Dietrich --- South African Medical Research Council, South Africa Ashleigh Lovette --- Brown University School of Public Health, USA Caroline Kuo --- Brown University School of Public Health, USA Catherine Mathews --- South African Medical Research Council, South AfricaParent–adolescent sexuality communication, the process in which parents and their adolescent children discuss sexuality and sexual and reproductive health, is a key component for adolescents’ protective behaviours. Open communication with parents, particularly mothers, enables informed sexual and reproductive health (SRH)... -
Information Requested on Bell's Hinged Back Tortoise (Kinnixys b. belliana)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Philip Joseph Angermaier --- , USA -
LETTERS TO THE EDITOR
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Dewey I (Chip) Wallace --- , USA Angelo Lambiris --- , Rhodesia Bruce Dyer --- , Johan Marais --- , -
ECOLOGICAL NOTES ON CHAMAELEO SCHUBOTZI FROM MOUNT KENYA
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: STEPHENM. REILLY --- Southern Illinois University, USA -
VARIATIONS OF THE VIDIAN CANAL SYSTEM IN THRASOPS JACKSONII (SERPENTES, COLUBRIDAE)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: R.H. VAETH --- Louisiana State University, USA -
LETTERS TO THE EDITOR
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: R.S. BLAYLOCK --- , South Africa A. STANLEY VOKET --- , USA -
NOTES ON THE SOUTH AFRICAN TERRESTRIAL GECKO CHONDRODACTYLUS A. ANGULIFER IN CAPTIVITY
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: R.D. BARTLETT --- The Reptilian Breeding and Research Institute, USA -
LIOHETERODON MADAGASCARIENSIS AN ADDITION TO THE SNAKE FAUNA OF THE COMORO ISLANDS
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: V. WALLACH --- Louisiana State University, USA -
GENDER OF HEMISUS AND CORRECT FORMATION OF THE FAMILY-GROUP NAME
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DarrelR. Frost --- The University of Kansas, USA JayM. Savage --- University of Miami, USA -
NOTES ON PACHYDACTYLUS FASCIATUS, A POORLY KNOWN GECKO FROM NORTHERN NAMIBIA
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AARONM. BAUER --- Villanova University, USA WILLIAMR. BRANCH --- , South AfricaPachydactylus fasciatus has remained a poorly known gecko, and since its description in 1888 only 15 specimens have been collected. Based on a series of 20 additional specimens collected by the authors from northern Damaraland, Namibia, notes on the taxonomic... -
THE STATUS OF PHYLLODACTYLUS PERINGUEYI (REPTILIA: GEKKONIDAE)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: BILLR. BRANCH --- , AARONM. BAUER --- Villanova University, USAA brief review of the history, provenance, taxonomy and distribution of this enigmatic gecko is given. -
HERPETOFAUNAL PATTERNS IN THE KAMANJAB DISTRICT AND ADJACENT DAMARALAND, NAMIBIA
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AARONM. BAUER --- Villanova University, USA -
A SUMMARY OF AFRICAN HOLDINGS AND AFRICAN RESEARCH OF THE DEPARTMENT OF HERPETOLOGY, CALIFORNIA ACADEMY OF SCIENCES
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AARONM. BAUER --- Villanova University, USA JENSV. VINDUM --- California Academy of Sciences, USA ROBERTC. DREWES --- California Academy of Sciences, USAAfrican holdings of amphibians and reptiles in the collection of the California Academy of Sciences (CAS) comprise 21058 specimens in 38 families from 49 countries. A bibliography of publications on African herpetology by CAS staff and associates is appended. -
GEOGRAPHICAL DISTRIBUTION
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: W.R. BRANCH --- , M. BURGER --- , MARIUS BURGER --- , M.F. Bates --- , W.R. BRANCH --- , M.S. BRANCH --- , W.R. BRANCH --- , G.V. HAAGNER --- , W.R. BRANCH --- , G.V. HAAGNER --- , M.S. BRANCH --- , G.V. HAAGNER --- , W.R. BRANCH --- , W.R. BRANCH --- , G.V. HAAGNER --- , M.S. BRANCH --- , W.R. BRANCH --- , M. BURGER --- , R. B.T. SMITH --- , AARONM. BAUER --- Villanova University, U.S.A. W.R. BRANCH --- , G. HAAGNER --- , R. HALL --- , G. CRAIG --- , PAULS. FREED --- Houston Zoological Gardens , USA W.R. BRANCH --- , R.E. BRANCH --- , D.G. BROADLEY --- , Zimbabwe W.R. BRANCH --- , M. BURGER --- , D.G. BROADLEY --- , Zimbabwe -
The Namaqua day gecko revisited: Allozyme evidence for the affinities of Phelsuma ocellata
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: D.A. GOOD --- , USA A.M. BAUER --- Villanova University, USAGOOD, D. A., and A. M. BAUER. 1995. The Namaqua day gecko revisited: Allozyme evidence for the affinities of Phelsuma ocellata. J. Herpetol. Assoc. Afr. 44: 1–9. -
Species limits in the Phyllodactylus lineatus complex (Reptilia: Gekkonidae), with the elevation of two taxa to specific status and the description of two new species
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: W.R. BRANCH --- , South Africa A.M. BAUER --- University of Stellenbosch, South Africa D.A. GOOD --- , USABRANCH, W. R., A. M. BAUER and D. A. GOOD. 1995. Species Limits in the Phyllodactylus lineatus complex (Reptilia: Gekkonidae), with the elevation of two taxa to specific status and the description of two new species. J. Herpetol. Assoc. Afr... -
The evolution of locomotor morphology in Rhoptropus (Squamata: Gekkonidae): Functional and phylogenetic considerations
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: A.M. BAUER --- Villanova University, USA A.P. RUSSELL --- University of Calgary, Canada G.L. POWELL --- University of Calgary, CanadaBAUER, A. M., A. P. RUSSELL and G. L. POWELL. 1996. The evolution of locomotor morphology in the genus Rhoptropus (Squamata: Gekkonidae). Afr. 1. Herpetol. 45(1): 8–30. -
A new species of Phyllodactylus (Squamata: Gekkonidae) from the Karoo National Park, South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: D.A. GOOD --- Louisiana State University, USA A.M. BAUER --- Villanova University, USA W.R. BRANCH --- , South AfricaGOOD, D.A., A.M. BAUER, and W.R. BRANCH. 1996. A new species of Phyllodactylus (Squamata: Gekkonidae) from the Karoo National Park, South Africa. Afr. J. Herpetol. 45(2): 49–58. -
Leptotyphlops broadleyi, a new species of worm snake from Côte d'Ivoire (Serpentes: Leptotyphlopidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: V. WALLACH --- Northeastern University, USA D.E. HAHN --- Northeastern University, USAWALLACH, V., and D.E. HAHN. 1997. Leptotyphlops broadleyi, a new species of worm snake from Côte d'Ivoire (Serpentes: Leptotyphlopidae). Afr. J. Herpetol. 46(2): 103–109. -
Peritoneal pigmentation and generic allocation in the Chamaeleonidae
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: A.M. BAUER --- Villanova University, USABAUER A.M. 1997. Peritoneal pigmentation and generic allocation in the Chamaeleonidae. Afr. J. Herpetol. 46(2): 117–123. -
New data on the South African acontine skink Typhlosaurus lomii Haacke 1986 (Squamata: Scincidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AaronM. Bauer --- Villanova University, USA Victoria Schneider --- Villanova University, USA Trip Lamb --- East Carolina University, USA PaulE. Moler --- Florida Game and Fresh Water Fish Commission , USA RandallD. Babb --- , USA -
Courtship and mating behaviour in the diadem snake, Spalerosophis diadema cliffordi (Colubridae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: RobertL. Ball --- Panola College, USA NeilB. Ford --- University of Texas at Tyler, USA -
Temperature regulation in free-ranging ectotherms: what are the appropriate questions?
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: PaulE. Hertz --- Barnard College, Columbia University, USA RaymondB. Huey --- University of Washington, USA RobertD. Stevenson --- University of Massachusetts Boston, USA -
Phylogenetic relationships within the Madagascan boophids and mantellids as elucidated by mitochondrial ribosomal genes
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: ChristinaM. Richards --- Wayne State University, USA RonaldA. Nussbaum --- University of Michigan, USA ChristopherJ. Raxworthy --- , USAPrevious work has demonstrated that mitochondrial ribosomal gene sequences are useful for elucidating amphibian phylogenetic relationships at the levels of order, family and genus. Here, we use sequences from these genes somewhat longer than those used in previous studies to... -
Comments on the types and type localities of South African reptiles collected by Heinrich Bergius and Ludwig Krebs
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AaronM. Bauer --- Villanova University, USAKarl Heinrich Bergius (1790–1818) and Georg Ludwig Engelhard Krebs (1792–1844) were German apothecaries living in South Africa who collected zoological material, including reptiles, for Martin Hinrich Carl Lichtenstein, director of the Zoological Museum of the Wilhelm-Friedrichs-Universität zu Berlin (ZMB). Although... -
Book review
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: NeilB. Ford --- University of Texas at Tyler, USA -
Morphometrics, sexual dimorphism, and growth in the angonoka tortoise (Geochelone yniphora) of western Madagascar
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: LoraL. Smith --- University of Florida, USA Miguel Pedrono --- Université Pierre et Marie Curie, France RobertM. Dorazio --- U.S. Geological Survey, USA Jack Bishko --- University of Florida, USAThe most recent description of the morphology of the rare endemic Madagascar tortoise, Geochelone yniphora was based on fewer than 20 specimens. We collected morphological data for 200 free‐ranging tortoises from five populations over a four‐year period. Tortoises ranged in... -
Reproduction in the brown house snake, Lamprophis fuliginosus, from Tanzania
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: NeilB. Ford --- University of Texas at Tyler, USA -
Book review
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Peter Meylan --- Eckerd College, USA AaronM. Bauer --- Villanova University, USA Lorren Haywood --- University of the Witwatersrand, South Africa GrahamJ. Alexander --- University of the Witwatersrand, South AfricaFossil snakes of North America: Origin, evolution, distribution, paleoecology (Life of the past). J. Alan Holman 2000. Indiana University Press. Price: US $69.95 (hardcover) ISBN: 0253337216. -
A reconsideration of the systematic status of Rhoptropus bradfieldi diporus Haacke 1965
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AaronM. Bauer --- Villanova University, USA Trip Lamb --- East Carolina University, USAWe re‐evaluated the taxonomic status of Rhoptropus bradfieldi diporus, an endemic Namibian gecko. Preanal pores, the character originally used to diagnose the taxon, are variably present, but R. b. diporus is reliably differentiated from R. b. bradfieldi by smaller, more... -
Courtship in The Madagascar Cat‐eyed Snake, Madagascarophis colubrina (Boiginae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Rita Mehta --- University of Texas at Tyler, USA NeilB. Ford --- University of Texas at Tyler, USA -
A new forest‐dwelling hemidactylus (squamata: Gekkonidae) from Gabon, West Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AaronM. Bauer --- Villanova University, USA OlivierS.G. Pauwels --- Institut Royal des Sciences naturelles de Belgique, BelgiumA distinctive new species of forest‐dwelling gecko of the genus Hemidactylus is described from Mt. Iboundji in south central Gabon. The species is distinguished from other equatorial West African members of the genus by its 18–19 rows of small dorsal... -
The effect of anthropogenic habitat modification on habitat use by Afrana angolensis along the dodwe river, Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: ScottG. Lynn --- University of Kentucky, USA Christian Lindle --- University of Vienna, Austria -
A new tree toad from the Ukaguru mountains, Tanzania
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Alan Channing --- University of the Western Cape, South Africa W. T. Stanley --- Field Museum of Natural History, USAA new bufonid from the Ukaguru Mountains, Tanzania is described. We erect a new genus to accommodate this taxon. It is a large tree toad with well‐developed discs and an omosternum, but lacks parotid glands, tympanum and columella. -
Reproduction in the Madagascar leaf‐nosed snake, langaha madagascariensis (Serpentes: Colubridae: Pseudoxyrhophiinae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: KennethL. Krysko --- University of Florida, USAAspects of reproduction including courtship behaviour, ovipositioning, egg characteristics, and hatchling descriptions are documented for the Madagascar leaf‐nosed snake (Langaha madagascariensis). Courtship behaviour is described from laboratory settings and takes place in vegetation above ground. Oviposition occurred at night time... -
Book review
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: WilliamR. Branch --- Port Elizabeth Museum, South Africa SimonP. Lailvaux --- Tulane University, USA GrahamJ. Alexander --- University of the Witwatersrand, South AfricaBiology of the Vipers. by Gordon W. Schuett, Mats Höggren, Michael E. Douglas, and Harry Greene (eds.). 2002. Eagle Mountain Publishing, Utah. Hardback, 580 pp, 16 colour plates. US$75.00. ISBN 0–9720154–0‐X. (available from Eagle Mountain Publishing, Utah, empub@msn.com). -
Molecular phylogenetics of Malagasy skinks (Squamata: Scincidae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AlisonS. Whiting --- Brigham Young University, USA JackW. Sites --- Brigham Young University, USA AaronM. Bauer --- Villanova University, USAMalagasy skinks are a poorly known group, and their relationships have not been critically evaluated previously. In this paper we present a phylogeny of Malagasy “scincine” lizards, based on quantitative phylogenetic analysis of data from seven molecular markers. Our analysis... -
Book review
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Vincent Carruthers --- , J.C. Poynton --- The Natural History Museum, UK DonaldG. Broadley --- Biodiversity Foundation for Africa, Zimbabwe AaronM. Bauer --- Villanova University, USA Stephen Spawls --- , United KingdomAtlas and Red Data Book of the Frogs of South Africa, Lesotho and Swaziland. Edited by L.R. Minter, M. Burger, J.A. Harrison, H.H. Braak, P.J. Bishop and D. Kloepfer, 2004. xv + 360 pages, 111 colour photographs, 3 colour maps,... -
Systematics of West African skinks in the Chalcides thierryi group: Composition, distribution, and redescription of types
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Eli Greenbaum --- The University of Kansas, USAThe taxonomic status of the West African skink taxa Chalcides pulchellus and C. thierryi have fluctuated in the literature since their original descriptions a century ago. Until recently, C. pulchellus was known only from the holotype, but recent collecting has... -
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... -
Letheobia pauwelsi, a new species of blindsnake from Gabon (Serpentes: Typhlopidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Van Wallach --- Harvard University, USAA new species of African blindsnake related to western Letheobia caecus and eastern L. acutirostratus is described from Gabon. It differs from both species in having an hourglass dorsal rostral shape, a ventrally angled corneal cutting edge, and a unicameral... -
Phylogenetic relationships of southern African geckos in the Pachydactylus group (Squamata: Gekkonidae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AaronM. Bauer --- Villanova University, USA Trip Lamb --- East Carolina University, USAPachydactylus and its close relatives (Chondrodactylus, Colopus, Palmatogecko) constitute the most species‐rich component of the southern African gekkonid fauna. We conducted a phylogenetic analysis of mitochondrial (cytb, 12S rRNA, 16S rRNA) and nuclear (RAG‐1) gene sequences for these geckos. Pachydactylus... -
A new cryptic Dainty Frog from East Africa (Anura: Ranidae: Cacosternum)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Alan Channing --- University of the Western Cape, South Africa Caroline Brun --- Neuroscience Research Building 1, USA Marius Burger --- University of the Western Cape, South Africa Severine Febvre --- University of the Western Cape, South Africa David Moyer --- Wildlife Conservation Society, TanzaniaWe describe a new species of dainty frog in the genus Cacosternum (Ranidae) from East Africa. It is similar morphologically to Cacosternum boettgeri from the interior of southern Africa, and is distinguished on the basis of an advertisement call with... -
Tremeropugus typicus A. Smith, 1831: Overlooked synonyms of Xenopus Wagler, 1827 and Xenopus laevis (Daudin, 1802) (Amphibia: Pipidae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AaronM. Bauer --- Villanova University, USA WilliamR. Branch --- Port Elizabeth Museum, South AfricaIn 1831 Sir Andrew Smith described a new genus and species of amphibian, Tremeropugus typicus, from South Africa. The description, which appeared in the obscure and short‐lived South African Quarterly Journal, has been overlooked for almost 175 years. Tremeropugus A... -
Distribution patterns of amphibians from the Kakamega forest, Kenya
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Susanne Schick --- Mainz University, Germany Michael Veith --- University of Amsterdam, The Netherlands Stefan Lötters --- University of Amsterdam, The NetherlandsWe discuss generalized geographical range patterns for the 24 anuran species that occur in the Kakamega Forest, western Kenya. Eight distributions are distinguished: from “western Equatorial Rift Valley” to almost entire sub‐Saharan. The former may be more common than previously... -
Feeding behaviour of the Madagascar leaf‐nosed snake, Langaha madagascariensis (Serpentes: Colubridae: Pseudoxyrhophiinae), with an alternative hypothesis for its bizarre head structure
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: KennethL. Krysko --- University of Florida, USAFeeding behaviour of the Madagascar leaf‐nosed snake (Langaha madagascariensis) is described and an alternative use for its unusual nasal appendage is hypothesized. Langaha madagascariensis employs a sit‐and‐wait foraging strategy and stalking prey is initiated once a snake is conscious of... -
A new species of prehensile‐tailed gecko, Urocotyledon (Squamata: Gekkonidae), from the Udzungwa Mountains, Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AaronM. Bauer --- Villanova University, USA Michele Menegon --- Museo Tridentino di Scienze Naturali, ItalyA new species of prehensile‐tailed gecko of the genus Urocotyledon is described from the dry western slopes of the Udzungwa Mountains in Tanzania. The species is most similar to its west African congeners, differing significantly from U. wolterstorffi of the... -
New species of Hemidactylus (Squamata: Gekkonidae) from Cameroon
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AaronM. Bauer --- Villanova University, USA Matthew Lebreton --- Cameroon Biodiversity Conservation Society, Cameroon Laurent Chirio --- Muséum national d'Histoire Naturelle, France Ivan Ineich --- Muséum national d'Histoire Naturelle, France Marcell Talla Kouete --- Cameroon Biodiversity Conservation Society, CameroonA new large (100 mm SVL) species of forest‐dwelling gecko of the genus Hemidactylus is described from the Furu‐Awa area in the Northwest Province of Cameroon. The species is distinguished from other equatorial West African members of the genus by... -
A revision of the East African species of Melanoseps Boulenger (Sauria: Scincidae: Feylininae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DonaldG. Broadley --- Research Associate, Natural History Museum of Zimbabwe, Zimbabwe AlisonS. Whiting --- Brigham Young University, USA AaronM. Bauer --- Villanova University, USAThe East African species of Melanoseps are revised and the following taxonomic changes proposed: 1. M. ater matengoensis Loveridge 1942 and M. ater misukuensis Loveridge 1953 are placed in the synonymy of M. ater (Günther 1873). 2. Melanoseps emmrichi sp... -
Diet of amphibians and reptiles from the Engare Ondare river region of central Kenya, during the dry season
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: LaurenceM. Hardy --- Louisiana State University in Shreveport, USA AmandaC. Crnkovic --- Louisiana State University in Shreveport, USAIn seasonally arid environments many species undergo some form of dormancy, such as aestivation. The dietary habits of those species during the period of seasonal aridity are poorly known. Little is known of the seasonal variation in the diet of... -
Cranial osteology of the African gerrhosaurid Angolosaurus skoogi (Squamata; Gerrhosauridae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: HollyA. Nance --- The University of Texas, USAPhylogenetic relationships both within and between the scincomorph families Gerrhosauridae and Cordylidae are in need of re‐examination. Currently the basal gerrhosaurid is unknown, although Angolosaurus skoogi previously was proposed as the sister taxon to mainland African gerrhosaurids. Many details of... -
Homopholis and blaesodactylus (Squamata: Gekkonidae) revisited: New insights from a molecular phylogeny
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Eli Greenbaum --- Villanova University, USA AaronM. Bauer --- Villanova University, USA ToddR. Jackman --- Villanova University, USASouth African Homopholis Boulenger, 1885 and Madagascan Blaesodactylus Boettger, 1893 are gekkonid genera originally distinguished by minor differences in scalation. Subsequent morphological studies have argued either for synonymy of the genera, or retention of the original 19th century taxonomy. Moreover,... -
External morphology and osteology support the placement of Phrynobatrachus nlonakoensis plath, Herrmann & Böhme, 2006 within the genus Arthroleptis
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: BredaM. Zimkus --- Harvard University, USA JoannaG. Larson --- Harvard University, USAExamination of external morphology and osteology of type material of Phrynobatrachus nlonakoensis Plath, Herrmann, and Böhme, 2006 support a recent taxonomic change, transferring the species into the genus Arthroleptis, which was recently made without examination of specimens. -
Observations on diet and seed digestion in a Sand Dune Lizard, Meroles anchietae
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: KennethA. Nagy --- University of California, USA DanielleR. Shemanski --- University of California, USAShovel‐snouted sand dune lizards, Meroles anchietae, are reported to include much seed from grasses and fig marigolds in their diets year‐round. This diet is quite unusual for a reptile, and invites investigation. We had an opportunity to examine the diet... -
Typhlosaurus jappi Broadley, 1968, a Valid Species of Acontine Skink
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Victoria Schneider --- Villanova University, USA AaronM. Bauer --- Villanova University, USANew evidence from scalation, dental, and reproductive traits supports the recognition of the Barotseland Blind Legless Skink, Typhlosaurus jappi, as a valid species distinct from T. lineatus. -
Ecological notes on two sympatric Psammophis species from East Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AmandaM. Cottone --- Villanova University, USA AaronM. Bauer --- Villanova University, USAWe investigated the ecology of two sympatric whipsnakes from East Africa (Psammophis punctulatus trivirgatus and P. biseriatus) by examining preserved museum specimens (n = 40). Both species lacked any significant sexual size dimorphism and displayed seasonal reproductive cycles. These findings... -
A new puddle frog (Phrynobatrachidae: Phrynobatrachus) from the Mambilla Plateau in eastern Nigeria
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: DavidC. Blackburn --- University of Kansas, USAA new species of puddle frog (Phrynobatrachus) is described from the Kurmin Danko Forest Reserve on the western edge of the Mambilla Plateau in eastern Nigeria. The new species is distinguished from both geographically proximate and closely related Phrynobatrachus species... -
An enigmatic mortality event in the only population of the Critically Endangered Cameroonian frog Xenopus longipes
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: DavidC. Blackburn --- University of Kansas, USA BenJ. Evans --- McMaster University, Canada AllanP. Pessier --- San Diego Zoo's Institute for Conservation Research, USA VanceT. Vredenburg --- San Francisco State University, USAContemporary global declines and mortality events in amphibian populations have been often attributed to infectious disease and climate change, separately and in combination. We report on an enigmatic mortality event in the only known population of the Critically Endangered frog... -
Aprosdoketophis andreonei, a new genus and species of snake from Somalia (Serpentes: Colubridae: Boiginae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Van Wallach --- , USA Benedetto Lanza --- Museo di Storia Naturale dell'Università di Firenze, Sezione di Zoologia “La Specola”, Italy Annamaria Nistri --- Museo di Storia Naturale dell'Università di Firenze, Sezione di Zoologia “La Specola”, ItalyAn aglyphous colubroid snake representing a new genus and species is described from Somalia. It is a terrestrial form that inhabits xerophytic woodlands. A comparison with both African and extralimital genera indicates that its relationships lie with the opisthoglyph Boiginae... -
Phylogenetic relationships among the Stiletto Snakes (genus Atractaspis) based on external morphology
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Katie Moyer --- Whitman College, USA Kate Jackson --- Whitman College, USAStiletto Snakes (genus Atractaspis) are the most poorly studied of the three clades of snakes with front-fanged venom-delivery systems. Fossorial and endemic to Africa and the Middle East, Atractaspis possess uniquely derived mobile fangs that allow them to perform a... -
Description of the tadpole of Amietophrynus brauni (Anura: Bufonidae) from the West Usambara Mountains, Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jared Sprague --- , USA BredaM. Zimkus --- Museum of Comparative Zoology, USAThe tadpole of Amietophrynus brauni (Anura: Bufonidae), endemic to the forests of the Eastern Arc Mountains of Tanzania, is barcoded using 16S rRNA and described from the West Usambara Mountains. It differs from tadpoles of A. maculatus by its body... -
Premature sperm ejaculation in captive African brown house snake Lamprophis fuliginosus
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AnthonyJ. Wilmes --- Saint Louis University, USA DustinS. Siegel --- Saint Louis University, USA RobertD. Aldridge --- Saint Louis University, USAMany ophidians exhibit prolonged copulation, a behaviour hypothesised to be the result of a slow and gradual ejaculation process or a behaviour aimed toward reducing sperm competition (male mate guarding). While observing courtship behaviour in a captive colony of the... -
A long-known new species of gecko allied to Pachydactylus bicolor (Squamata: Gekkonidae) from the central Namibian coast
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: MatthewP. Heinicke --- Villanova University, USA LaurenM. Adderly --- Villanova University, USA AaronM. Bauer --- Villanova University, USA ToddR. Jackman --- Villanova University, USAA new species of the ‘northwestern clade’ of Pachydactylus is described from the coast of central Namibia. It has long been considered a population of the widespread species Pachydactylus bicolor, from which it differs in body proportions, in having at... -
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 -
A new species of Cordylus (Squamata: Cordylidae) from the Marungu Plateau of south-eastern Democratic Republic of the Congo
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Eli Greenbaum --- University of Texas at El Paso, USA EdwardL. Stanley --- Richard Gilder Graduate School, American Museum of Natural History, USA Chifundera Kusamba --- Centre de Recherche en Sciences Naturelles, Lwiro, République Démocratique du, Congo WandegeM. Moninga --- Centre de Recherche en Sciences Naturelles, Lwiro, République Démocratique du, Congo StephenR. Goldberg --- Whittier College, USA CharlesR. Bursey --- , USACurrently there are 20 recognised species of the widespread lizard genus Cordylus, which is distributed throughout sub-Saharan Africa's non-forested habitats from Ethiopia to South Africa. Most recent taxonomic work has focused on forms in southern Africa, where several subspecific taxa... -
A new species of Hemidactylus (Squamata: Gekkonidae) from Príncipe Island, Gulf of Guinea, West Africa with comments on the African-Atlantic clade of Hemidactylus geckos
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: ElizabethC. Miller --- University of California, USA AnnaB. Sellas --- California Academy of Sciences, USA RobertC. Drewes --- California Academy of Sciences, USAThe remote oceanic Gulf of Guinea islands of São Tomé and Príncipe are home to a highly endemic herpetofauna, which has become the focus of modern, on-going scientific analysis only during the past decade. Until now, the endemic Hemidactylus greeffi... -
Karyotypes of two species of Malagasy ground gecko (Paroedura: Gekkonidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Hana Main --- University of Minnesota, USA DanielP. Scantlebury --- University of Rochester, USA David Zarkower --- University of Minnesota, USA Tony Gamble --- University of Minnesota, USAThe karyotypes of Malagasy geckos are poorly known. Herein, we describe the karyotypes of two Malagasy gecko species, Paroedura picta and an undescribed or currently unrecognised Paroedura species. These are the first karyotypes described for the genus Paroedura. Each species... -
Conspecific pheromone trailing and pheromone trail longevity in the African Colubrid Boaedon fuliginosus
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AnthonyJ. Wilmes --- Saint Louis University, USA JustinL. Rheubert --- Saint Louis University, USA DavidL. Gruenewald --- Saint Louis University, USA Tharun Kotaru --- Parkway South High School, USA RobertD. Aldridge --- Saint Louis University, USAIn snakes, pheromone trailing is a strategy used for long-distance location of conspecifics. The two existing hypotheses for this behaviour are: a) to locate individuals for reproductive purposes; and b) to form aggregations during the winter/dry season. Pheromone trailing for... -
Systematics of the poorly known treefrog Leptopelis fiziensis (Anura: Arthroleptidae), with a description of its call
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Eli Greenbaum --- University of Texas at El Paso, USA Frank Portillo --- University of Texas at El Paso, USA Chifundera Kusamba --- Centre de Recherche en Sciences Naturelles, République Démocratique du CongoLeptopelis fiziensis was described as a subspecies of L. modestus from specimens that were collected in 1956 in the region in and around Fizi, in present-day Democratic Republic of the Congo. We recently discovered L. fiziensis in transitional and montane... -
Untangling the complex: molecular patterns in Trachylepis variegata and T. punctulata (Reptilia: Scincidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: DanielM. Portik --- Villanova University, USA AaronM. Bauer --- Villanova University, USAThe Mabuya [=Trachylepis] lacertiformis complex is comprised of four species with a high degree of morphological overlap and a convoluted taxonomic history. Of these four species, T. punctulata and T. variegata possess the broadest ranges, together covering much of southern... -
Phylogeny and phylogeography of the Malagasy leaf-tailed geckos in the Uroplatus ebenaui group
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Fanomezana Mihaja Ratsoavina --- Zoological Institute, Technical University of Braunschweig, Germany Miguel Vences --- Zoological Institute, Technical University of Braunschweig, Germany EdwardE. Louis --- Omaha's Henry Doorly Zoo and Aquarium, USALeaf-tailed geckos, genus Uroplatus, are one of the most prominent endemic reptile groups from Madagascar, but the species diversity and diversification of this taxonomic group are not completely understood. Here, we present a phylogenetic reconstruction of the small-sized Uroplatus which... -
Description of the tadpoles of two Cameroonian frogs, Leptodactylodon axillaris and L. perreti (Anura: Arthroleptidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Deise Cruz --- California Academy of Sciences, USA AnneliseL. Dawson --- Harvard University, USA DavidC. Blackburn --- California Academy of Sciences, USAWe describe the tadpoles of two closely related frog species of the genus Leptodactylodon (family Arthroleptidae), L. axillaris and L. perreti, that are restricted to the mountains of Cameroon. Tadpoles were collected from near the type locality of each species... -
Species boundaries and biogeography of East African torrent frogs of the genus Petropedetes (Amphibia: Anura: Petropeditidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: SimonP. Loader --- University of Basel, Switzerland F. Sara Ceccarelli --- University of Basel, Switzerland Mark Wilkinson --- The Natural History Museum, UK Michele Menegon --- Museo Tridentino di Scienze Naturali, Italy Jean Mariaux --- Muséum d'Histoire Naturelle, Switzerland RafaelO. de Sá --- University of Richmond, USA KimM. Howell --- University of Dar es Salaam, Tanzania DavidJ. Gower --- The Natural History Museum, UKBased on morphology there are currently three described East African species of torrent frogs belonging to the tropical African genus Petropedetes (P. dutoiti, P. martiennseni and P. yakusini). Taxonomic uncertainties are evident within this group: a putative new species reported... -
Morphological variation in Monopeltis guentheri from forest habitat in Brazzaville, Republic of Congo (Squamata: Amphisbaenidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Sylvestre Boudzoumou --- , Republic of Congo Daniel Hoops --- , , Australia Victor Mamonekene --- , Republic of Congo Kate Jackson --- , , USASixty-four Monopeltis guentheri were collected in a small patch of remnant forest within the city of Brazzaville, Republic of the Congo, and were measured for morphological characters traditionally used to classify five species of Central and West African Monopeltis amphisbaenians... -
Namaqua Dwarf Adders are generalist predators
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Bryan Maritz --- , , USA Graham J. Alexander --- , , South AfricaPrey items vary greatly in the total amount of energy they provide and the costs associated with their location, capture, consumption and assimilation. As a result not all prey types are of equal value, and the relative frequency with which... -
Multiple paternity and sperm storage in the Cape Dwarf Chameleon (Bradypodion pumilum)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Krystal A. Tolley --- , , South Africa Lucas F. Chauke --- , , South Africa Jennifer C. Jackson --- , , South Africa Kevin A. Feldheim --- , , USAAlthough multiple paternity and sperm storage are common in squamates, neither has been conclusively demonstrated in the chameleons (Chamaeleonidae). To examine whether these traits are present in chameleons, the Cape Dwarf Chameleon (Bradypodion pumilum) was investigated. This viviparous species inhabits... -
Are environmental conditions in the eyes of the beholder? Foreign and local firms in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Lilac Nachum --- Baruch College, City University New York, USA Chris Ogbechie --- Lagos Business School, NigeriaInternational business research has provided substantial empirical evidence that foreign firms investing in countries with adverse environmental conditions may emerge as the main competitors in those countries. Against this backdrop, the dominance of local banks in Nigeria is puzzling. Our... -
Vitamin D status of the elderly in the Vaal region, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Wilna Oldewage-Theron --- Texas Tech University, USA Christa Grobler --- Vaal University of Technology, South AfricaVitamin D status was determined in a sample of 79 elderly people and the results showed that 38% of the elderly had inadequate vitamin D status that was accompanied by various symptoms associated with vitamin D insufficiency/deficiency. -
Roles and responsibilities of expert clients in adolescent HIV service delivery in Eswatini: a conventional content analysis
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Charisse V Ahmed --- University of Pennsylvania School of Nursing, USA Guy Weissinger --- University of Pennsylvania School of Nursing, USA Anne M Teitelman --- University of Pennsylvania School of Nursing, USA Ndumiso Sabelo Dlamini --- University Research Co., LLC, Eswatini Nontsikelelo Patience Dlamini --- University Research Co., LLC, Eswatini Thuthukile Cebsile Dlamini --- University Research Co., LLC, Eswatini Angel Nkambule --- University Research Co., LLC, Eswatini Siphesihle Nkambule --- University Research Co., LLC, Eswatini Bridgette M Rice --- Villanova University, USA Marianne Calnan --- University Research Co., LLC, EswatiniWe aimed to elucidate the specific roles and responsibilities of expert clients in service delivery among adolescents living with HIV in Eswatini, and to provide recommendations for enhancing adolescent service provision among expert clients and similar lay health workers throughout... -
The use of monitoring data and community feedback mechanisms to increase HIV testing among men during a cluster-randomised community mobilisation trial in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rebecca L West --- University of California San Francisco, USA Rhandzekile Mathebula --- , South Africa Dumisani Rebombo --- , South Africa Rhian Twine --- University of the Witwatersrand, South Africa Aimée Julien --- University of Antwerp, Belgium Nkosinathi Masilela --- University of the Witwatersrand, South Africa Mi-Suk Kang Dufour --- University of California San Francisco, USA Dean Peacock --- , South Africa Kathleen Kahn --- University of the Witwatersrand, South Africa Audrey Pettifor --- University of the Witwatersrand, South Africa Sheri A Lippman --- University of California San Francisco, USAThis short communication describes the development and implementation of a programme monitoring and feedback process during a cluster-randomised community mobilisation intervention conducted in rural Bushbuckridge, Mpumalanga, South Africa. Intervention activities took place from August 2015 to July 2018 with the... -
Symptoms of depression, anxiety, and thoughts of suicide/self-injury in adolescents and young adults living with HIV in Botswana
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Merrian Brooks --- , USA Barbara Burmen --- , Botswana Anthony Olashore --- University of Botswana, Botswana Alemayehu Mekonnen Gezmu --- University of Botswana, Botswana Keneilwe Molebatsi --- University of Botswana, Botswana Ontibile Tshume --- , Botswana Onkemetse Phoi --- , Botswana Knashawn Morales --- University of Pennsylvania Perelman School of Medicine, USA Mogomotsi Matshaba --- University of Botswana, Botswana Tami Benton --- University of Pennsylvania Perelman School of Medicine, and Children’s Hospital of Philadelphia, USA Elizabeth D Lowenthal --- University of Pennsylvania Perelman School of Medicine, and Children’s Hospital of Philadelphia, USAGlobally, mental health problems have been reported to be more common in youth living with HIV (YLWH) than in the general population, but routine mental health screening is rarely done in high-volume HIV clinics. In 2019, YLWH in a large... -
Effect of multi-month antiretroviral dispensing on HIV clinic attendance at 68 Nigerian Army Reference Hospital, Yaba, Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nkechinyere Harrison --- , Lagos Nigeria Ismail Lawal --- , Nigeria Kehinde Aribisala --- , Lagos Nigeria Kenneth Oruka --- , Lagos Nigeria Yakubu Adamu --- , Nigeria Patricia Agaba --- Walter Reed Army Institute of Research, USA Elizabeth Lee --- Walter Reed Army Institute of Research, USA Laura Chittenden --- , Nigeria Nathan Okeji --- , NigeriaBackground: Multi-month dispensing (MMD) of antiretroviral therapy has demonstrated benefits for HIV patients and health service delivery systems, including reduced frequency of hospital visits and improved retention. We evaluated the effect of 6-monthly dispensing (MMD6) on patient clinic attendance at... -
The classroom environment and college students’ being silent/hidden dropouts: The chain of mediating effects of college identification and academic achievement
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yongtao Gan --- Shantou University, China Tian Zhang --- Shantou University, China Jian Gao --- Shantou University, China Yifei Li --- Universiti Malaya, College of Education, Malaysia Jing Zhang --- Shantou University, China Wenjun Wang --- Cleveland State University, USAThe present study investigated the relationship between the classroom environment (CE) and hidden dropout (HD), and the chain mediating role of college identification (CI) and academic achievement (AA) in that relationship. A total of 1 214 Chinese college students were... -
The critical role that national culture and ethical leadership play in fostering employee commitment to service quality in the hotel industry
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Christina K. Dimitriou --- New Mexico State University, USAThe hotel industry is the most diverse and fastest growing industry in the world, offering its companies tremendous opportunities for international expansion and immersion in different cultures. However, this creates several obstacles that block the way to success. Through the... -
Examining the impacts of “local” concessions at major league baseball stadiums
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Alana N Seaman --- University of North Carolina Wilmington, USA Alexia Franzidis --- University of North Carolina Wilmington, USASports stadiums represent important hospitality entities that generate billions and act as both powerful memorials of and contributors to place and destination image for visitors and locals alike. With increasing entertainment competition and waning fan attendance, many sport facilities are... -
Brother Herman Zaccarelli and the influence of Vatican II on Catholic institutional food service
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Amy Bentley --- New York University, USAIn post-World War II United States, a Holy Cross monk named Herman Zaccarelli viewed Vatican II as an opening for the modernising of food in Catholic religious institutions. Brother Herman founded the Food Research Center for Catholic Institutions on the... -
Folkloristic perspectives on food as tourism souvenir: a reflection on stereotypes, meanings and messages in Irish soda bread
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Lucy M Long --- , USAFood has always been a pragmatic part of tourism and hospitality, but it is now being recognised as a souvenir — a reminder of a travel experience. Along with the usual functions of souvenirs as status symbol, proof of travel,... -
Accounting outsourcing and its relationship with financial performance of SMEs: Manager and employee perspectives
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Faeze Rezazade --- Excelsia College, Australia Susannah Minutillo --- Excelsia College, Australia Nirmal Patel --- Excelsia College, AustraliaThere is a gap in the literature related to understanding the relationship between outsourcing of accounting functions and financial performance (productivity and cost efficiency) of SMEs. This study examines the relationship between accounting outsourcing and financial performance in terms of... -
Notes on lung development in South African ghost frogs (Anura: Heleophrynidae)
Item type: Journal Article • Journal: Treading a Delicate Tightrope: A principal balancing between education and political change during turbulent times • Authors: Jackson R Phillips --- , USA Jens Reissig --- , South Africa Gary Kyle Nicolau --- , USALungs are a prototypical trait of most tetrapods, but some amphibians have become secondarily lungless over evolutionary time. Anuran (frog) tadpoles offer an opportunity to examine lung loss from an evolutionary perspective, because there are many independent instances where lungs... -
Lie triple centralizers on generalized matrix algebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Behrooz Fadaee --- University of Kurdistan, Iran Hoger Ghahramani --- University of Kurdistan, Iran Wu Jing --- Fayetteville State University, USAIn this article, we introduce the notion of Lie triple centralizer as follows. Let be an algebra, and be a linear mapping. We say that ϕ is a Lie triple centralizer whenever for all . Then we characterize the general... -
On minimum proper essential extensions in a category
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Anthony W. Hager --- Wesleyan University, USA Brian Wynne --- Lehman College, CUNY, USAIn a concrete category A satisfying certain natural conditions, we investigate minimum proper essential extenstions (A-mpee’s) and how this relates to atoms in the complete lattice hoA of hull operators on A (if A # is the category with... -
Dominant tree selection for height estimation and its impact on site classification for African mahogany stands
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Matheus Oliveira Teixeira --- Federal University of Piauí, Brazil Andressa Ribeiro --- Federal University of Piauí, Brazil Gabriel William Dias Ferreira --- Colorado State University, USA Maurício Sangiogo --- , Brazil Antonio Carlos Ferraz Filho --- Federal University of Piauí, BrazilAfrican mahogany plantations are increasing in Brazil, especially those planted with the species Khaya grandifoliola C. DC. Despite the interest in establishing plantations, there is a lack of studies in management practices for the genus. This makes it difficult to... -
Global concentration of wood-pulp production, 1961–2021
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Luiz Moreira Coelho Junior --- Federal University of Paraiba, Brazil Thaisa de Sousa Selvatti --- Federal University of Lavras, Brazil Filipe Vanderlei Alencar --- Federal University of Paraiba, Brazil Anna Manuella Melo Nunes --- Federal University of Paraiba, Brazil Maisa Santos Joaquim --- Universidade de Brasilia, Brazil Edvaldo Pereira Santos Júnior --- Federal University of Paraiba, Brazil Alvaro Nogueira de Souza --- Universidade de Brasilia, BrazilWood pulp is one of the main products of forestry worldwide, being a necessary intermediate product for all types of paper produced. In order to understand the market dynamics of this product, this study analyses the global concentration of the... -
More on cardinality bounds involving the weak Lindelöf degree
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Bella --- University of Catania, Italy N. Carlson --- California Lutheran University, USA I. Gotchev --- Central Connecticut State University, USAWe give several new bounds for the cardinality of a Hausdorff topological space X involving the weak Lindelöf degree ωL(X). In particular, we show that if X is extremally disconnected, then |X| ≤ 2 ωL (X)πχ(X)ψ(X), and if X... -
On a functional identity involving inverses on matrix rings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Nadeem Ahmad Dar --- Government HSS, India Wu Jing --- Fayetteville State University, USALet be a division ring which is not a field with characteristic different from 2 and 3, and with n > 1. The purpose of this paper is to characterize additive maps f,g : satisfying the functional identity f(X) +... -
Reconciling National and Communal Identity in Kenya through the Asian African Heritage Exhibit
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Chepchirchir Tirop --- Stanford University, USAIn the context of contemporary questions of identity and belonging, this paper examines the Asian African Heritage museum exhibit at the Nairobi Museum. The exhibit is an attempt by members of the Indian community to solidify their place in Kenya... -
Precision agriculture and the prospects of space strategy for food security in Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Lere Amusan --- North West University, South Africa Samuel Oyewole --- North West University, South AfricaPrecision agriculture generally refers to the methods of crop, livestock and fish farming that are meant to eliminate or minimize uncertainty and maximize products with relative accuracy that matches predetermined expectations. Amidst these, the relevance of space assets such as... -
Effects of short-duration kraaling depend on initial conditions in a mesic grassland
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Heidi-Jayne Hawkins --- , South Africa Nompendulo Mgwali --- , South Africa Susanne Vetter --- Rhodes University, South AfricaShort-duration overnight kraaling has been suggested as a tool for restoring degraded rangelands. However, the response of different plant functional types and communities to such intense livestock impact may vary depending on local context. We thus examined the effects of... -
On the extent of the injectivity of direct sums of modules
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sergio R. López-Permouth --- Ohio University, USA Bülent Saraç --- Hacettepe University, TurkeyInspired by the fact that a ring is right Noetherian if and only if direct sums of certain injective right modules are once again injective, we propose a way to not only decide whether a ring is Noetherian but to... -
Water quality profile and metal pollution indices of the main stream of the Nile River in Egypt
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Manar M Hussein --- National Institute of Oceanography and Fisheries (NIOF), Egypt Mohamed E Goher --- National Institute of Oceanography and Fisheries (NIOF), Egypt Ahmed H Mangood --- Menofia University, Egypt Ibrahim E Mousa --- University of Sadat City, EgyptThe lower Nile River is a vital drinking and irrigation water source in Egypt. Human activities adjacent to rivers deteriorate the quality of such water resources. The water quality profiles of 23 sites along the Nile were calculated in accordance... -
Barriers to linkage and retention in HIV care still persist among adolescent girls and young women in western Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Zachary A Kwena --- Kenya Medical Research Institute, Kenya Rivet K Amico --- University of Michigan, USA Tsitsi B Masvawure --- College of the Holy Cross, USA Kenneth K Ngure --- Jomo Kenyatta University of Agriculture and Technology, Kenya Elizabeth A Bukusi --- Kenya Medical Research Institute, Kenya Robert H Remien --- New York State Psychiatric Institute and Columbia University, USA Perez O Ochwal --- Kenya Medical Research Institute, Kenya Nadia Nguyen --- New York State Psychiatric Institute and Columbia University, USA Joanne E Mantell --- New York State Psychiatric Institute and Columbia University, USAAdolescent girls and young women (AGYW) in sub-Saharan Africa experience delayed linkage to and poor retention in HIV care. Identifying and addressing specific barriers in HIV care programming is important to achieving the upgraded UNAIDS 95-95-95 targets and epidemic control... -
Assessing the impact of the COVID-19 restrictions on HIV testing services in Malawi: an interrupted time series analysis
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Barinaadaa Afirima --- , Malawi Ihoghosa O Iyamu --- University of British Columbia, Canada Zeena A Yesufu --- , Nigeria Emem Iwara --- , Nigeria David Chilongozi --- , Malawi Louis Banda --- , Malawi Emanuel Zenengeya --- , Malawi Chimwemwe Mablekisi --- , Malawi Blackson Matatiyo --- , Malawi Joseph Kuye --- , Nigeria Odo Michael --- , Liberia Andrew Gonani --- , Malawi Melchiade Ruberintwari --- , Mali Ngonidzashe Madidi --- , Malawi Edward Oladele --- , Zambia Chris Akolo --- , USABackground: Restrictions on public gatherings and movement to mitigate the spread of COVID-19 may have disrupted access and availability of HIV services in Malawi. We quantified the impact of these restrictions on HIV testing services in Malawi. -
Community health workers can be trained to identify patients eligible for tuberculosis preventive therapy, but encounter barriers to programme implementation in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sarah Norton --- Duke University Hospital, USA Anthony P Moll --- , South Africa Jabulile Madi --- , South Africa Nkazi Nkomo --- , South Africa Ralph P Brooks --- Yale University School of Medicine, USA Laurie Andrews --- Yale University School of Medicine, USA Sheela V Shenoi --- Yale University School of Medicine, USATuberculosis (TB) remains one of the top 10 causes of death worldwide, ranking as the leading cause of death from infectious disease, above HIV and AIDS. South Africa has the sixth highest TB incidence rate in the world and the... -
On dual-classical Krull dimension of rings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sayed Malek Javdannezhad --- Shahid Rajaee Teacher Training University, Iran Sayedeh Fatemeh Mousavinasab --- Shahid Chamran University of Ahvaz, Iran Nasrin Shirali --- Shahid Chamran University of Ahvaz, IranAn ideal L of a ring R is said to be strongly hollow (briefly, sh-ideal) if L ⊆ A + B implies that either L ⊆ A or L ⊆ B, for every pair A and B of ideals of... -
Cross-section measures, radii, and Radon curves
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Horst Martini --- University of Technology Chemnitz, Germany Zokhrab Mustafaev --- University of Houston-Clear Lake, USAThe purpose of this paper is to study cross-section measures and their connections to Radon curves in two-dimensional Minkowski spaces. More precisely, we use results on cross-section measures to present, for nomed planes, inner and outer radii of the unit... -
The integer sequence transform a → b, where bn is the number of real roots of the polynomial a 0 + a 1 x + a 2 x 2 + · · · + anxn
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: W. Edwin Clark --- University of South Florida, USA Mark Shattuck --- University of Tennessee, USAWe discuss the integer sequence transform a 1→ b, where bn is the number of real roots of the polynomial a 0 + a 1 x + a 2 x 2 + · · · + anxn . It is... -
The number fields that are O*-fields II
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jingjing Ma --- University of Houston-Clear Lake, USA Ashley Martinez --- University of Houston-Clear Lake, USAAn O* -field is a field K for which each partial order with respect to which K is a partially ordered field can be extended to a total order with respect to which K is a totally ordered field. When... -
Towards the digitalization of poultry industry in Nigeria: An investigation of farmers’ knowledge and practices
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Khadijat O. Olanrewaju --- Osun State University, Nigeria Olaide K. Akintunde --- Osun State University, Nigeria Moshood A. Popoola --- Federal College of Animal Health and Production Technology, Moor Plantation, Ibadan, Nigeria Ahmed O. Busari --- Osun State University, Nigeria Moses O. Omotosho --- Osun State University, NigeriaThe array of digital technologies portends huge significance for up-scaling poultry enterprises for optimized efficiency and productivity. The study investigated poultry farmers’ knowledge and the technicality of their practices concerning digital technologies. Members of the Poultry Farmers Association of Nigeria... -
Technology transfer as a catalyst for effective university-industry collaboration in Botswana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mhlambululi Mafu --- Case Western Reserve University, USAThe university-industry contractual research collaborations to solve complex problems jointly and create social and economic impact have long existed. Technology Transfer Offices (TTOs) constitute formal technology intermediaries established to strengthen university-industry collaborations. However, the differences in needs and capabilities, individual... -
The (E, E)-approximation property for Banach spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ju Myung Kim --- Sejong University, Korea Bentuo Zheng --- The University of Memphis, USAFor a given Banach space E with an 1-unconditional basis, we introduce the (E, E)-approximation property ((E, E)-AP) which is a natural generalization of the classical approximation property (AP) and the (p, p)-AP. It is shown that the AP always... -
4-regular partitions and the pod function
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Cristina Ballantine --- , USA Mircea Merca --- University Politehnica of Bucharest, RomaniaThe function pod(n) enumerates the partitions of n wherein odd parts are distinct and even parts are unrestricted. Recently, a number of properties for pod(n) have been established. In this paper, we use connections with 4-regular partitions and, for fixed... -
Restricted inversion sequences and Schröder paths
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: David Callan --- University of Wisconsin-Madison, USA Toufik Mansour --- University of Haifa, IsraelIn this paper, we find an explicit formula for the number of inversion sequences of length n that avoid each of the pattern sets {021, 010}, {021, 011}, {021, 100, 101}, {021, 000, 101}, and {101, 102, 201}. This is... -
Expressions from Zulu proverbs on the uniqueness of motherhood in mitigating the adverse effects of orphanhood
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Mfundo Mandla Masuku --- University of KwaZulu-Natal, South Africa Nomusa M Mlondo --- , South Africa Tholakele Henrietta Chiliza --- University of Zululand, South AfricaProverbs are labelled as the expression of messages embedded in a language. This article analyses a selected proverb which reflects on motherhood and orphanhood and which is used to show the value of motherhood in the Zulu culture. The meaning... -
Moderating role of organizational culture in the relationship between total quality management and organizational innovation among manufacturing SMEs in Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kabir Musa Shuaib --- Tianjin University, People’s Republic of China Zhen He --- Tianjin University, People’s Republic of ChinaPrevious studies on the total quality management and innovation relationship have had mixed findings. We predict that organizational culture could moderate the relationship between total quality management and organizational innovation. The study collected empirical data from 433 small and medium-sized... -
Gender disparity in livelihood diversification among rural households in Osogbo Agricultural Development Programme (ADP) Zone of Osun State, Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Olaide K. Akintunde --- , Nigeria Khadijat O. Olanrewaju --- , Nigeria Timothy O. Agboola --- , Nigeria Ahmed O. Busari --- , NigeriaLivelihood diversification is a coping strategy that functions as a cushioning effect owing to dwindling income from agriculture. This study examined the significant differences in income between males and females before and after livelihood diversification. The multi-stage sampling procedure was... -
A new species of African legless skink, genus Acontias Cuvier, 1816 “1817” (Squamata: Scincidae) from Serra da Neve inselberg, south-western Angola
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Mariana P. Marques --- Carnegie Museum of Natural History, USA Diogo Parrinha --- Universidade do Porto, Portugal Arthur Tiutenko --- Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany Manuel Lopes-Lima --- Universidade do Porto, Portugal Aaron M. Bauer --- Villanova University, USA Luis M. P. Ceríaco --- Universidade do Porto, PortugalDuring a recent survey of the Serra da Neve inselberg in south-western Angola, a population of legless skinks of the genus Acontias was found. Only three species of this genus have been recorded for the country so far – A... -
Some properties of conjunctivity (subfitness) in generalized settings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: M. Andrew Moshier --- CECAT, Chapman University, USA Jorge Picado --- University of Coimbra, Portugal Aleš Pultr --- Charles University, Czech RepublicThe property of subfitness used in point-free topology (roughly speaking) to replace the slightly stronger T 1-separation, appeared (as disjunctivity) already in the pioneering Wallman’s [16], then practically disappeared to reappear again (conjunctivity, subfitness), until it was in the recent... -
Some questions on partially ordered rings – a survey
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jingjing Ma --- University of Houston-Clear Lake, USAThis survey provides a brief overview and new developments on some questions in the area of partially ordered and lattice-ordered rings and algebras. -
Three Fibonacci-chain aperiodic algebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Raymond Aschheim --- Quantum Gravity Research, USA David Chester --- Quantum Gravity Research, USA Daniele Corradetti --- Universidade do Algarve, Portugal Klee Irwin --- Quantum Gravity Research, USAAperiodic algebras are infinite dimensional algebras with generators corresponding to an element of the aperiodic set. These algebras proved to be an useful tool in studying elementary excitations that can propagate in multilayered structures and in the construction of some... -
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... -
Coping strategies and mental health of adolescents impacted by parental HIV and AIDS in rural South Africa
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Comfort Asanbe --- College of Staten Island, City University of New York, USA Maretha Visser --- University of Pretoria, South Africa Anne-Gloria Moleko --- University of Pretoria, South Africa Catherine Makwakwa --- , South AfricaObjective: The study explored whether orphanhood status as well as coping strategies predicted mental health outcomes in orphans and vulnerable adolescents who participated in an NGO-supported programme in rural South Africa. -
Resilience in Iranian adolescents during the COVID-19 pandemic: Psychometric Evaluation of the Connor-Davidson Resilience Scale
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Hamid Sharif-Nia --- Addiction Institute, Mazandaran University of Medical Sciences, Iran Long She --- Sunway University, Malaysia Erika Sivarajan Froelicher --- University of California San Francisco, USA Gökmen Arslan --- Mehmet Akif Ersoy University, Turkey Sima Hejazi --- North Khorasan University of Medical Sciences, Iran Fatemeh Khoshnavay Fomani --- Tehran University of Medical Sciences, Iran Daniyal Kohestani --- Iran University of Medical Science, Iran Elham Akhlaghi --- Iran University of Medical Sciences, IranBackground: Resilience is a measure of the ability to cope with stress and the accurate measurement of it is critical. This study aimed to translate and evaluate the psychometric properties of the Connor-Davidson Resilience Scale in Iranian adolescents during the... -
The effect of employees’ CSR engagement on work outcomes: Empirical evidence from Ethiopia
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Saleamlak Mola --- Addis Ababa University, Ethiopia Michael A. Abebe --- The University of Texas Rio Grande Valley, USAIn this study, we examine the effect of employees’ CSR engagement on work outcomes. Drawing insights from social exchange theory, we propose that employees’ CSR engagement is likely to positively affect their job satisfaction and organizational commitment while reducing turnover... -
HIV and COVID-19: convergence, divergence and lessons for future health emergencies
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: David Wilson --- , USA -
Influences on decision-making about disclosure of HIV status by adolescents and young adults living with HIV in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Thandeka Smith --- Africa Health Research Institute, South Africa Janet Seeley --- Africa Health Research Institute, South Africa Maryam Shahmanesh --- Africa Health Research Institute, South Africa Christina Psaros --- , USA Chiedza Munikwa --- , South Africa Nothando Ngwenya --- Africa Health Research Institute, South AfricaBackground: Adolescents and young adults living with HIV (AYA) are faced with the challenge of living with a life-long chronic condition. We investigated the influences on the decisions by AYA to disclose their HIV status to family, intimate partners and... -
Equity of the HIV epidemic response in 13 African countries
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gary Gaumer --- Brandeis University, USA V. S. Senthil Kumar --- Brandeis University, USA William Crown --- Brandeis University, USA Monica Jordan --- Brandeis University, USA Clare Hurley --- Brandeis University, USA Maya Subramanian --- Brandeis University, USA A. K. Nandakumar --- Brandeis University, USAFor over 25 years, new programs to attempt to stem the HIV epidemic have been developed in Africa by country governments as well as external donors. These programs and activities have built and operated facilities, trained clinicians, financed drugs and... -
A document analysis of the South African national guidelines for medical male circumcision and the implications for infant and child male circumcision decision-making
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Eurica L Palmer --- University of the Free State, South Africa Steven Forsythe --- , USASouth Africa’s 2016 medical male circumcision (MMC) guidelines (“the guidelines”) provide direction for the MMC programme’s implementation in South Africa. The aim of our document analysis was to assess the guidelines, particularly in lieu of changing guidance from WHO and... -
Genetic variability of Tachigali vulgaris trees based on seed morphophysiological traits
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Noemi Vianna Martins Leão --- , Brazil Sérgio Heitor Sousa Felipe --- Universidade Estadual do Maranhão, Brazil Ricardo Gallo --- Universidade Federal Rural de Pernambuco, Brazil Elizabeth Santos Cordeiro Shimizu --- , BrazilTachigali vulgaris is a tree with high potential for energy purposes in Brazil. However, there is little information about genetic variability that can be applied to plant breeding. Here, we quantified genetic variability based on biometric and emergence traits of... -
The potential of artificial intelligence (AI) for decolonising education in South Africa through the development of indigenous languages
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Burgert Senekal --- University of the Free State, South Africa Susan Brokensha --- University of the Free State, South AfricaDespite having 12 officially recognised languages (with the addition of South African Sign Language on 3 May 2023), South Africa’s education system is becoming increasingly monolingual. The current article makes the case for employing artificial intelligence (AI) to improve multilingualism... -
The names of the supreme being in Bemba: some critical morphological insights
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Hambaba Jimaima --- University of Zambia, Zambia Susan Matukuto --- University of Zambia, Zambia Gabriel Simungala --- University of Zambia, ZambiaIn this article, we use lexical morphology to account for names of the supreme being in Bemba, a Bantu language spoken in Zambia as rendered by various translators in the Christian holy book, the Bible. Motivated by the agglutinative nature... -
The 47th International Council for Traditions of Music and Dance World Conference
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Damascus Kafumbe --- , USA -
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... -
A note on some classes of operators on C(K,X)
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ioana Ghenciu --- University of Wisconsin-River Falls, USA Roxana Popescu --- University of Pittsburgh, USASuppose X and Y are Banach spaces, K is a compact Hausdorff space, Σ is the σ-algebra of Borel subsets of K , C (K, X) is the Banach space of all continuous X-valued functions (with the supremum norm), and... -
Quasilattices and complex concept analysis
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: G.N. Nop --- Iowa State University, USA J.D.H. Smith --- Iowa State University, USAQuasilattices are algebraic structures that comprise a semilattice-ordered system of lattices. In this paper, certain quasilattices (that are characterized abstractly by a local completeness property) provide an extension of Wille's concept analysis to the study of complex systems that function... -
On b-repdigits as product of consecutive of Lucas members
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Kouèssi Norbert Adédji --- Institut de Mathématiques et de Sciences Physiques, Université d’Abomey-Calavi, Bénin Virgile Dossou-yovo --- Institut de Mathématiques et de Sciences Physiques, Université d’Abomey-Calavi, Bénin Salah Eddine Rihane --- , Algeria Alain Togbé --- Purdue University Northwest, USAA b-repdigit is a positive integer that has only one distinct digit in its base b expansion, i.e. a number of the form a(bm – 1)=(b – 1), for some positive integers m ≥ 1, b ≥ 2 and 1... -
On a comparison between absolute and relative self-adjoint extension schemes
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Noè Angelo Caruso --- Mathematical Institute, Silesian University in Opava, Czech Republic Alessandro Michelangeli --- Prince Mohammad Bin Fahd University, Saudi Arabia Andrea Ottolini --- University of Washington, USAThe problem of connecting the operator parameters that label the same self-adjoint extension of a given symmetric operator, respectively, within the ‘absolute’ von Neumann extension scheme and the ‘relative’ boundary-triplet-induced extension scheme (i.e., a la Kreĭn-Višik-Birman) is discussed, and quantitative... -
Scaling and instantaneous blow up
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Gisèle Ruiz Goldstein --- University of Memphis, USA Jerome A. Goldstein --- University of Memphis, USA İsmail Kömbe --- Istanbul Commerce University, Türkiye Abdelaziz Rhandi --- University of Salerno, ItalyThe main result is a simple proof of the Baras-Goldstein (1984) instantaneous blow up result for the heat equation with the inverse square potential. The proof relies heavily, indeed mainly, on scaling. Remarks are also given concerning the case when... -
Hereditarily projectable Archimedean lattice-ordered groups with unit
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Anthony W. Hager --- Wesleyan University, USA Brian Wynne --- , USALet W be the category of Archimedean lattice-ordered groups with distinguished weak unit and unit-preserving ℓ-group homomorphisms. We denote by P, wP, Loc, HA, respectively, the collections of projectable, weakly projectable, local, and hyperarchimedean W-objects. For any C ⊆ W,... -
10 years of the Africa Journal of Management: A bibliometric analysis
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Katia M. Galdino --- Georgia Southern University, USA Diane Lawong --- University of Alabama at Birmingham, USAThe Africa Journal of Management (AJOM) is devoted to the advancement of management theory, scholarship, practice, service, and education in or about Africa and for the benefit of Africa. The journal was launched at the 2014 Africa Academy of Management... -
Africa Journal of Management: A decade in the making
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Bruce T. Lamont --- Florida State University, USA Hermann A. Ndofor --- Indiana University, USA Moses N. Kiggundu --- Carleton University, Canada -
The use of big data and analytics in external auditing: Does audit firm size matter? Evidence from a developing country
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Ahmed S. Abdelwahed --- Cairo University, Egypt Ahmad A. Abu-Musa --- Tanta University, Egypt Hosam Moubarak --- Alexandria University, Egypt Hebatallah A. Badawy --- Egypt-Japan University of Science and Technology, EgyptPurpose: The aims of this research are to investigate the reasons for adopting big data (BD) and big data analytics (BDA), determine their extent of usage, and identify potential obstacles to their adoption in a developing country, Egypt. -
Transgenerational transmission in psychoanalysis: A phenomenology of dislocating errands
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Maurice Apprey --- University of Virginia, USAIn the process of psychical transmission from one generation to the next, who asks what of whom? The evocative expression of an ‘errand’ suggests that a subject is sent on a mission, sent in error, wanders away, and returns home,... -
LovesCompany: evaluating the safety and feasibility of a mental health-focused online community for adolescents
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Anna Van Meter --- New York University Langone Health, USA Neha Agrawal --- Yeshiva University, USABackground: Adolescents are at risk for mental health (MH) disorders but are unlikely to seek services and may be reluctant to talk about their MH. An anonymous, online MH-focused community could help reduce suffering. However, online forums can also promote... -
On the characteristic functions and Dirchlet-integrable solutions of singular left-definite Hamiltonian systems
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Elgiz Bairamov --- Ankara University, Turkey Kenan Tas --- Usak University, Turkey Ekin Uğurlu --- Çankaya University, TurkeyIn this work, a singular left-definite Hamiltonian system is considered and the characteristic-matrix theory for this Hamiltonian system is constructed. Using the results of this theory we introduce a lower bound for the number of Dirichlet-integrable solutions. Moreover we share... -
Level of food safety knowledge among hospitality professionals: an empirical investigation from India
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Patita Paban Mohanty --- Siksha’ O’ Anusandhan University, India Sunil Tiwari --- School of Business Studies, Central University of Kerala, India Hiran Roy --- International School of Hospitality and Tourism Management, Fairleigh Dickinson University, Canada Rupesh Bhavsar --- Institute of Hotel Management, MGM University, IndiaHospitality professionals with insufficient food safety knowledge (FSK) poses a major risk to food safety in their respective organisations. This study aims to investigate the level of food safety knowledge of hospitality professionals, as well as the attributes influencing food... -
Teaching EFL reading in Senegal: Current practices and recommendations
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Mohamadou Bachir Kane --- Southern Illinois University Carbondale, USA Katherine I. Martin --- Southern Illinois University Carbondale, USAReading comprehension involves understanding and interpreting information in written texts and constitutes a minimum academic ‘threshold’ that impacts broader education. Developing strong reading skills is particularly challenging for non-native readers because of the dual need for strong linguistic skills and... -
Debt financing and growth of Ghanaian family-owned businesses: The dual role of family values
Item type: Journal Article • Journal: Africa Journal of Management • Authors: J. K. Dartey --- Doctorate Division, Nobel International Business School, Ghana J. Okeniyi --- Creative Enterprise Department, School of Business and Creative Industry, University of West of Scotland, UK S. E. Samuel --- School of Business, Law and Social Sciences, Abertay University, UK E. Peregrino-Dartey --- Business Administration, Walden University, USA C. Cobblah --- Doctorate Division, Nobel International Business School, GhanaThis study investigates how family values can create finance and growth challenges for family-owned businesses in emerging economies. Specifically, it explores the interplay between family values, debt financing, and firm growth, while also considering the moderating role of self-enhancement and... -
Navigating social and academic isolation: a qualitative exploration of American university students’ perspectives and experiences early in the COVID-19 pandemic
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Ashlynn Lawston --- California Polytechnic State University, USA Luna Lowsky --- California Polytechnic State University, USA McKenna Ross --- California Polytechnic State University, USA Christine Hackman --- California Polytechnic State University, USAObjective: To qualitatively explore the multifaceted impacts of the early months of the COVID-19 pandemic on the lives of American university students. -
Experimental evaluation of a neurophysiological intervention designed to increase student resilience: a pilot study
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Alex Kresovich --- NORC at the University of Chicago, USA Kai MacLean --- NORC at the University of Chicago, USA Caroline M. Lancaster --- NORC at the University of Chicago, USA Elizabeth D. Torres --- University of Texas Medical Branch, USA Jeff R. Temple --- University of Texas Medical Branch, USA Elizabeth A. Mumford --- NORC at the University of Chicago, USASocial and emotional learning (SEL) interventions have shown promise for building resilience and protecting youth from adverse outcomes. This study reports on an experimental pilot evaluation of the Smart Brain Wise Heart SEL intervention during the 2021–2022 school year. Smart... -
On uniquely packable trees
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Alochukwu --- Albany State University, USA M. Dorfling --- University of Johannesburg, South Africa E. Jonck --- University of the Witwatersrand, South AfricaAn i-packing in a graph G is a set of vertices that are pairwise at distance more than i. A packing colouring of G is a partition X = {X 1, X 2, . . . , X k... -
Almost Yamabe solitons satisfying certain conditions on the associated vector field
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Rahul Poddar --- Sri Sathya Sai Institute of Higher Learning, India Ramesh Sharma --- University of New Haven, USA S. Balasubramanian --- Sri Sathya Sai Institute of Higher Learning, IndiaWe study an almost Yamabe soliton (Mn , g, V, ρ) and obtain various conditions on V in terms of infinitesimal harmonic transformation, 2-Killing, and an inequality, to show that V is Killing. In addition, we have provided characterizations of... -
Do we have the tools for achieving distributive tax justice?
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: James Alm --- Tulane University, USAPurpose: How can tax policies serve as a tool to promote distributive tax justice? The purpose of this study is to discuss several policies that research shows are both feasible and effective in achieving distributive tax justice. -
A fully discrete scheme on piecewise-equidistant mesh for singularly perturbed delay integro-differential equations
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Musa Cakir --- Van Yuzuncu Yil University, Turkey Baransel Gunes --- Van Yuzuncu Yil University, TurkeyThis paper chiefly takes into account the singularly perturbed delay Volterra-Fredholm integro-differential equations by numerically. In this context, firstly, priori estimates are given and a new discretization is constructed on piecewise-equidistant mesh by using interpolating quadrature rules [2] and composite... -
A lemma on C 0-semigroups on time scales and approximate controllability of the heat dynamic equation
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Martin Bohner --- Missouri University of Science and Technology, USA Cosme Duque --- Universidad de Los Andes, Hugo Leiva --- University YachayTech, School of Mathematical and Computational Sciences, Ecuador Zoraida Sivoli --- Universidad Siglo 21,In this paper, we present a lemma that allows us to characterize a broad class of C 0-semigroups on time scales, which can be applied to prove existence and uniqueness of solutions of systems of partial differential equations where the... -
Book review: ‘Fairy Circles of the Namib Desert: Ecosystem Engineering by Subterranean Social Insects’
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: David Ward --- Kent State University, USA -
Using stakeholder knowledge to co-produce research priorities for a raptor species vulnerable to impacts of wind energy facilities
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Merlyn Nomusa Nkomo --- University of Cape Town, South Africa Megan Murgatroyd --- University of Cape Town, South Africa Samantha Ralston-Paton --- , South Africa Arjun Amar --- University of Cape Town, South AfricaThe global energy transition necessitates a rapid increase in infrastructure in developing countries, including for wind energy facilities (WEFs). Concerns arise regarding the negative impacts of WEFs on biodiversity, especially on birds of prey or raptors and other volant animals... -
Travelling together: exploring the impact of support and service animals on travel experiences
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Marianna Moraes --- University of California, USAThe phenomenon of multi-species families is increasingly linked to the growing awareness of the benefits of emotional support and service animals. As more people adopt various animals into their homes, it becomes crucial to understand how these family arrangements influence... -
Quantitative genetics and breeding strategies in hybrid populations of Pinus patula × Pinus tecunumanii
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Luis Ibarra --- North Carolina State University, USA Gary Hodge --- North Carolina State University, USA Juan José Acosta --- North Carolina State University, USAForestry companies SAFCOL and Sappi conducted a study in South Africa to examine genetic variation and select improved material in full-sib hybrid families of Pinus patula × Pinus tecunumanii. The results from the study on clonal and seedling hybrid populations... -
Strong soil–vegetation relationship in riparian forests of the middle Rio Doce watershed, south-eastern Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Débora Oliveira Sousa --- Universidade Federal de Minas Gerais, Brazil Daniel Negreiros --- Universidade Federal de Minas Gerais, Brazil Letícia Ramos --- Universidade Federal de Minas Gerais, Brazil João Carlos Gomes Figueiredo --- Universidade Estadual de Montes Claros, Brazil Dario C Paiva --- Institute of Environment, Florida International University, USA Yumi Oki --- Universidade Federal de Minas Gerais, Brazil Wénita de Souza Justino --- Universidade Federal de Minas Gerais, Brazil Rubens Manoel dos Santos --- Universidade Federal de Lavras, Brazil Lorena Ashworth --- Universidade Federal de Minas Gerais, Brazil Yule Roberta Ferreira Nunes --- Universidade Estadual de Montes Claros, Brazil G Wilson Fernandes --- Universidade Federal de Minas Gerais, BrazilPhytosociological surveys and soil quality studies are relevant tools for the implementation of restoration programmes. This study aimed to characterise the vegetation of the tree and sapling strata in preserved riparian forests of the middle portion of the Rio Doce... -
“We mostly focus on preventing pregnancy, we don’t really focus on preventing HIV … ”: Young people’s perceptions and priorities when preventing unplanned pregnancy and HIV
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jewelle JS Methazia --- , South Africa Tshegofatso P Bessenaar --- , South Africa Sarah E Baum --- , USAIn South Africa, the high rate of human immunodeficiency virus (HIV) infection among young people and unplanned pregnancies remains a concern. Using a qualitative approach, this study aimed to explore how young people between 18 and 24 years old perceive... -
Relationship between social capital and post-partum antiretroviral therapy adherence among women living with HIV in the Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Khadijat K. Adeleye --- University of Massachusetts, USA Eyitayo O. Owolabi --- Arizona State University, USA Oladele V. Adeniyi --- Walter Sisulu University, South Africa David Aduragbemi Okunlola --- Florida State University, USA Anthony I. Ajayi --- , KenyaBackground: Adherence to antiretroviral therapy (ART) is crucial for preventing vertical transmission of HIV and maternal deaths. While the literature is replete with studies on ART adherence, the role of social capital in adherence to ART is less studied. Drawing... -
Sexual behaviour among Kenyan adolescents enrolled in an efficacy trial of a smartphone game to prevent HIV: a cross-sectional analysis of baseline data
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Victor Mudhune --- Kenya Medical Research Institute, Kenya Kate Winskell --- Emory University, USA Robert A. Bednarczyk --- Emory University, USA Ken Ondenge --- Kenya Medical Research Institute, Kenya Calvin Mbeda --- Kenya Medical Research Institute, Kenya Emily Kerubo --- Kenya Medical Research Institute, Kenya Richard Ndivo --- Kenya Medical Research Institute, Kenya Judith Arego --- Kenya Medical Research Institute, Kenya Marissa Morales --- Emory University, USA Brianna Halliburton --- Emory University, USA Gaëlle Sabben --- Emory University, USASexual behaviour of adolescents is contextual, with various determinants affecting sexual activity and age of sexual debut. Insight into sexual activity among young adolescents has the potential to influence appropriate sexual and reproductive health interventions. For this analysis, adolescents were... -
Some properties in vector sequence spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ioana Ghenciu --- University of Wisconsin-River Falls, River Falls, USA Roxana Popescu --- University of Pittsburgh, USASome classes of operators T on are characterized in terms of the induced operators Tn on each Xn . We study pseudo weakly compact, limited completely continuous, q-convergent, DP q-convergent, limited q-convergent, weak Dunford-Pettis, weak* Dunford-Pettis, weak q-convergent, weak* q-convergent... -
Clinical insights from continuous glucose monitor use in patients living with type 1 diabetes in rural Malawi
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: G Ferrari --- Brigham and Women’s Hospital, USA M Boti --- , Malawi D Nakotwa --- , Malawi A Gomber --- Brigham and Women’s Hospital, USA MM Coates --- Brigham and Women’s Hospital, USA K Kumwenda --- , Malawi F Valeta --- , Malawi L Drown --- Brigham and Women’s Hospital, USA A Thapa --- Brigham and Women’s Hospital, USA V Mithi --- , Malawi A Msekandiana --- Baylor, College of Medicine Children’s Foundation, Malawi C Kachimanga --- , Malawi PH Park --- Brigham and Women’s Hospital, USA AJ Adler --- Brigham and Women’s Hospital, USA G Bukhman --- Brigham and Women’s Hospital, USA T Ruderman --- , Malawi C Trujillo --- Brigham and Women’s Hospital, USA -
Grammaticality judgements of tense by young adult speakers of Shona
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: McLoddy R. Kadyamusuma --- Illinois State University, USAThis study examined grammaticality judgements of tense by 40 young adult native speakers of Shona during an online task. This study reports response accuracy and reaction times on the reading of time reference violations in which verb forms do not... -
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,... -
Training Social Network-Central Fishermen in Western Kenya to Distribute HIV Self-Test Kits and Health Facility Referral Vouchers
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joseph Onyango Okore --- , Kenya Carol S Camlin --- University of California San Francisco, USA Jayne Lewis-Kulzer --- University of California San Francisco, USA Sarah A Gutin --- University of California San Francisco, USA Edwin Charlebois --- University of California San Francisco, USA Benard Ayieko --- , Kenya Zachary Kwena --- Kenya Medical Research Institute, Kenya Kawango Agot --- , KenyaLow HIV testing among men, particularly highly mobile fishermen, is a persistent challenge. The Owete study (NCT#04772469) used social network-central men (Promoters) to promote testing and linkage to HIV services among social networks of fishermen in western Kenya. The Promoters... -
Congress of the International Association of Music Libraries, Archives and Documentation Centres (IAML), Stellenbosch (2024)
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Benjamin Knysak --- , USA -
The ‘accidental ethnomusicologist’ and his lifelong fight for studies in African popular music: a conversation with John Collins at 80
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Chijioke Ngobili --- University at Buffalo, USA -
Considering risk associated with leisure time physical activity (LTPA) at craft breweries: overlooking dangers in the name of fun
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Alana N Seaman --- Tourism, Recreation, & Sport, University of North Carolina Wilmington, USA Lindsey Schroeder --- Athletic Training, University of North Carolina Wilmington, USA Madison Peace --- Athletic Training, University of North Carolina Wilmington, USA Michele Abee --- Bellarmine University, USA Laura Morris --- Tourism, Recreation, & Sport, University of North Carolina Wilmington, USAMany breweries in the US have become popular settings for leisure time physical activity (LTPA). While risk is widely accepted as an inherent part of sport and physical activity (PA), breweries are places of increased risk due to the nature... -
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 &... -
The future of hospitality is storytelling: conceptualising the visitor’s journey
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Carissa Baker --- University of Central Florida, USAStorytelling has become an increasingly important aspect of hospitality and tourism that can have several positive impacts on visitors. This article argues for an understanding of narrative structure in the guest experience as well as a reconceptualisation of the visitor’s... -
Ubulili besifazane ekuthukeni inhlamba: kubhekwa isilwane esiyinja nomuntu wesifazane
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Zinhle P Nkosi --- Language & Arts Education, University of KwaZulu-Natal, South Africa Sicelo Z Ntshangase --- Language & Arts Education, University of KwaZulu-Natal, South Africa Alexandra O’Neil --- Linguistics, University of Indiana, USAKuyinkinga ukuthi ubulili besifazane bubukeka bungobedelelekile lapho buqhathaniswa nobesilisa. Lokhu kunomthelela nasekutheni abanye abantu emiphakathini baze basebenzise amagama angawalobu bulili njengawenhlamba nokwehlisa isithunzi kothukwayo. Ucwaningo luhlose: (1) Ukuphenya ukuthi ubulili besifazane ngesilwane esiyinja nomuntu wesifazane busetshenziswa kanjani ekuthukeni inhlamba. (2)... -
A survey and exposition of sub-Hausdorff separation axioms
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jeffrey T. Denniston --- Kent State University, USA Austin Melton --- Kent State University, USA Stephen E. Rodabaugh --- Institute for Applied Topology and Topological Structures, Youngstown State University, USA Jamal K. Tartir --- Institute for Applied Topology and Topological Structures, Youngstown State University, USAThis paper surveys and develops sub-Hausdorff axioms. It augments known relationships involving T 0 (Kolmogorov), S 0 (quasi-sobriety), S 1 (sobriety), T 1 (Fréchet), and T 2 (Hausdorff ) by examining a large suite of sub-Hausdorff axioms. Emphasis is given... -
A note on tangential quadrilaterals
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Pradeep Das --- Rajiv Gandhi Institute of Petroleum Technology, India Abhishek Juyal --- Hemvati Nandan Bahuguna Garhwal University, India Dustin Moody --- National Institute of Standards & Technology, USAA tangential quadrilateral is a convex quadrilateral whose sides are simultaneously tangent to a single circle. In this paper, the primary objective is to construct rational tangential quadrilaterals characterized by having rational area, as well as rational side and diagonal... -
Historical trajectories and current perspectives on sub-Saharan wildland fire science and management in select scientific literature
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Devan Allen McGranahan --- Livestock and Range Research Laboratory, USDA Agricultural Research Service, USA Kevin P Kirkman --- Grassland Science, University of KwaZulu-Natal, South AfricaFire has long been a fixture on African landscapes to which ecosystems, wildlife and people have adapted. Not surprisingly, wildland fire science in Africa has also undergone substantial change and development. Three broad eras of wildland fire science and management... -
Putting the pieces together: woody plant encroachment across a precipitation gradient in southern Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: David Ward --- Kent State University, USAWoody plant encroachment is one of the most widespread land-cover changes in many countries. We put the data together along a precipitation gradient within southern Africa from 150 mm/annum (Namibia) to 1 500 mm/annum (eastern KwaZulu-Natal, South Africa). We found... -
A two-day professional development workshop on advanced nutrition support increased Ghanaian nutrition and dietetic professionals’ self-efficacy and practical knowledge of enteral and parenteral nutrition support
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Ruthfirst EA Ayande --- Yale-New Haven Hospital, USA Percival D Agordoh --- University of Health and Allied Sciences, Ghana Vanessa J Salino --- Yale-New Haven Hospital, USA Clarisa Webster-Ariyan --- Yale-New Haven Hospital, USA Lindsay Collier --- Yale-New Haven Hospital, USA Matilda Asante --- University of Ghana, Ghana Elena T Carbone --- University of Massachusetts Amherst, USAAims: Enteral and parenteral nutrition support (NS) improves clinical outcomes in critically ill patients, yet evidence from a needs assessment indicates that Ghanaian clinical nutrition practitioners (CNPs) have low self-efficacy in administering NS, especially parenteral nutrition. This study aimed to... -
Integrating seasonal forecast information with crop models to inform decision making in small-scale farming under climate variability
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Siyabusa Mkuhlani --- Climate Systems Analysis Group, Environmental and Geographical Science Department, Faculty of Science, University of Cape Town, South Africa Farirai Rusere --- University of the Witwatersrand, South Africa Nkulumo Zinyengere --- World Bank Group, USA Olivier Crespo --- Climate Systems Analysis Group, Environmental and Geographical Science Department, Faculty of Science, University of Cape Town, South AfricaIntegrating seasonal forecast information and crop models has the potential to inform farm management decisions under climate variability. The study assessed the feasibility of integrating seasonal forecast information into crop models for decision making in small-scale farming conditions in South... -
Amplifying success in SMEs: Harnessing the joint power of social capital and new product development capability in developing economies
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Ahmed Agyapong --- Kwame Nkrumah University of Science and Technology, Ghana Patrick A. Akanpaaba --- Accra Business School, Ghana Tesfalidet Tukue --- Southern University, USA Amo Sarpong --- Kwame Nkrumah University of Science and Technology, GhanaThis study examines the ongoing debate in scholarly literature regarding the role of firm-specific resources and capabilities – namely, social capital (SC) and new product development capability (NPDC) – in influencing firm performance. Addressing a critical gap, the research explores... -
Is there a gender gap in audit fees in Spain? Explaining the variables involved in audit fees
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Mercedes Mareque --- University of Vigo, Spain Susana Escaloni --- University of Vigo, Spain -
Multiplicatively maximal numerical range-preserving maps
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Abdellatif Bourhim --- Syracuse University, USA Mohamed Mabrouk --- Umm Al-Qura University, Saudi ArabiaLet be the algebra of all bounded linear operators on a complex Hilbert space . For any operator , let W 0(T) be the maximal numerical range of T. We show that two maps φ 1 and φ 2 from... -
The triple burden of obesity, HIV, and anaemia during pregnancy and associations with delivery outcomes in urban South Africans
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Alessandra Prioreschi --- University of the Witwatersrand, South Africa Stephanie V Wrottesley --- University of the Witwatersrand, South Africa Linda Adair --- University of North Carolina at Chapel Hill, USA Kate A Ward --- University of the Witwatersrand, South Africa Shane A Norris --- University of the Witwatersrand, South Africa -
Advances in mini-cutting of Libidibia ferrea: an integrated approach with mini-stump management and growth regulator
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Igor de Souza Bitú --- Federal Rural University of Pernambuco, Brazil Erika Rayra Lima Nonato --- Federal Rural University of Pernambuco, Brazil Moema Barbosa de Sousa --- Federal Rural University of Pernambuco, Brazil Paulo César da Silva Santos --- Federal Rural University of Pernambuco, Brazil Carlos Luiz da Silva --- Federal Rural University of Pernambuco, Brazil Eliane Cristina Sampaio de Freitas --- Federal Rural University of Pernambuco, Brazil Ricardo Gallo --- Federal Rural University of Pernambuco, BrazilVegetative propagation plays a crucial role in biodiversity conservation and the promotion of sustainable forestry practices, especially for species with difficulties in seed germination due to dormancy and low germination rates. Therefore, this study aimed to evaluate mini-stump management techniques... -
Belowground resprouting potential and nutrient acquisition traits of three perennial grasses during the short dry season in Kenya
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Edwin M Kakusu --- University of Nairobi, Kenya RN Kinuthia --- University of Nairobi, Kenya Jacqueline P Ott --- , USA OK Koech --- University of Nairobi, KenyaSurvival of perennial grasses between wet seasons depends on the maintenance of belowground buds and root systems. Belowground bud and root traits were evaluated in three perennial grasses (Pennisetum mezianum (Leeke), Digitaria macroblephara (Hack. ex Schinz) Paoli, and Themeda triandra... -
Type 2 diabetes mellitus but not overweight/obesity reduces testicular volume and endocrine function in men
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: E Musa --- Kaduna State University, Nigeria GC Musa --- University of Cape Town, South Africa E Salazar-Petres --- Universidad San Sebastián, Carrera de Obstetricia, Chile F Bello --- Ahmadu Bello University, Nigeria AG Bakari --- Ahmadu Bello University, Nigeria -
Leveraging quantum science and technology for sustainable development in Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Farai Mazhandu --- Colorado School of Mines, USA Mhlambululi Mafu --- Case Western Reserve University, USAQuantum science and technology is a rapidly growing field that harnesses the unique properties of quantum mechanics. The manipulation of quantum systems has led to unprecedented development in secure quantum communication, simulation, computing, sensing and metrology. Despite the significance of... -
Aquatic hitchhikers: examining the phoretic associations between blackfly (Diptera: Simuliidae) and mayfly (Ephemeroptera: Heptageniidae, Tricorythidae) larvae in Kenyan river ecosystems
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JM Benjamin --- University of Florida, USA AL Subalusky --- University of Florida, USA W Graf --- Institute of Hydrobiology and Aquatic Ecosystem Management, University of Natural Resources and Life Sciences (BOKU), AustriaThe interaction known as phoresy, where one organism (the phoront) utilises another (the host) primarily for transport or access to food resources, has been observed among various aquatic invertebrates in Afrotropical rivers. Although documented in multiple species, phoresy’s underlying causes,... -
Furo Wariboko’s Race Treason in Igoni Barrett’s Blackass
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Husamulddin Sabah Azeez Alfaisali --- Al-Ma’mon University College, IraqIn the realm of literature and cultural studies, the complex interplay of identity, race, and privilege has long been a subject of critical examination. Igoni Barrett’s novel Blackass (2015) provides a rich tapestry for such exploration, offering a unique narrative... -
Trends in ethical transgressions amongst South African dietetic practitioners
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: A Baldassarre --- Saint Louis University, USA M Pontarelli --- University of Texas MD Anderson Cancer Center, USA J Wilkenson --- University of the Western Cape, South Africa Y Gezu --- Augustana College, USA M Nortje --- Christopher Newport University, USA G Truong --- Skidmore College, USA N Ravi --- The University of Texas MD Anderson Cancer Center, USA N Nortje --- The University of Texas MD Anderson Cancer Center, USA WA Hoffmann --- Research Ethicist in Private Practice, The NetherlandsThis study investigated ethical transgressions amongst dietetic practitioners in South Africa, using publicly available data from the Health Professions Council of South Africa (HPCSA) in the period 2014–2023. The study is a follow-up on the study by Nortje and Hoffmann... -
Partially ordered rings with negative squares
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Nhi Durtschi --- University of Houston-Clear Lake, USA Jingjing Ma --- University of Houston-Clear Lake, USA R.H. Redfield --- Hamilton College, USAA partially ordered ring (R, ≤) with negative squares is a partially ordered ring in which for some element a ∈ R, a 2 < 0. In this paper, we study this class of partially ordered rings. It is shown... -
Health promotion messaging reduces HIV risk behaviours and improves repeat testing among adolescent girls and young women in Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Marylyn Ochillo --- Impact Research and Development Organization, Kenya Risper Bosire --- Impact Research and Development Organization, Kenya Nicky Okeyo --- Impact Research and Development Organization, Kenya Jacob Onyango --- Impact Research and Development Organization, Kenya Kawango Agot --- Impact Research and Development Organization, Kenya Nok Chhun --- University of Washington, USA Samwel Rao --- Impact Research and Development Organization, Kenya Ann Kurth --- The New York Academy of Medicine (NYAM), USA Irene Inwani --- University of Nairobi, KenyaAdolescents and young people in sub-Saharan Africa account for about a third of persons newly diagnosed with HIV. Health communication, through mobile health (mHealth) can improve access to sexual and reproductive health information, health services and reduce risky sexual behaviours... -
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... -
The semantics of Dagbani cut and break verbs
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Bashiru Nurideen --- Ghana Education Service, Bamvim Presbyterian Junior High School, Samuel Alhassan Issah --- University of Education, Ghana Musah Sugri Issahaku --- St. Vincent College of Education, GhanaThis article discusses the semantics of cut and break verbs in Dagbani, a Mabia language spoken in Ghana’s Northern Region by the Dagbamba. We demonstrate that cut and break verbs are about different types of separation events with different lexicalisation... -
Vegetation structure and defoliation patterns in heterogeneous grasslands under two herbage allowance levels
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Felipe Casalás --- University of the Republic, Uruguay Nicolas Caram --- University of the Republic, Uruguay Pablo Soca --- University of the Republic, Uruguay Marcelo Wallau --- University of Florida, USA Pablo Boggiano --- University of the Republic, UruguayUnderstanding the relationship between vegetation attributes and defoliation patterns at multiple spatiotemporal scales is crucial for optimising grazing systems. This study assessed the structural attributes of vegetation and the effects of defoliation frequency and intensity in a campos grassland under... -
Chemical composition and in-vitro dry matter degradability of Eragrostis curvula grass hay supplemented with Raphanus sativus
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Lwando Mbambalala --- School of Agricultural, Earth and Environmental Science, University of KwaZulu-Natal, South Africa Ntuthuko Raphael Mkhize --- School of Agricultural, Earth and Environmental Science, University of KwaZulu-Natal, South Africa Thamsanqa Doctor Empire Mpanza --- Agricultural Research Council-Animal Production: Animal Nutrition Section, South Africa Zikhona Theodora Rani-Kamwendo --- School of Agricultural, Earth and Environmental Science, University of KwaZulu-Natal, South Africa Sphesihle Mkhungo --- Department of Agriculture and Rural Development, South Africa Lucky Sithole --- Department of Agriculture and Rural Development, South Africa Mutshidzi Given Musekwa --- School of Agricultural Sciences, Faculty of Natural and Agricultural Sciences, South Africa Lusanda Ncisana --- School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, South Africa Khuliso Ravhuhali --- School of Agricultural Sciences, Faculty of Natural and Agricultural Sciences, South Africa Tlou Julius Tjelele --- University of South Africa, South AfricaIn developing countries, smallholder livestock farmers face significant challenges due to inadequate feed availability and poor-quality forage. This study investigated the potential of fodder radish (Raphanus sativus) as a protein supplement for low-quality grass hay. Specifically, it examined the effects... -
Semantic extensions of ziyakhala used on social media platforms in South Africa
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Yanga Lusanda Praiseworth Majola --- Tshwane University of Technology, South Africa Evangeline Bonisiwe Zungu --- University of Johannesburg, South AfricaThis study analyses the semantic extension ziyakhala (also written as ayikhale or azikhale), which is popularly used on social media platforms. Ziyakhala literally means ‘let it cry’, the root word is ‘khala’ which means to cry and the prefix ‘zi’... -
Assessment of seed quality through rapid tests: a bibliometric analysis
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Carlos Luiz da Silva --- Federal Rural University of Pernambuco, Brazil Marcone Moreira Santos --- Federal Rural University of Pernambuco, Brazil Eliane Cristina Sampaio de Freitas --- Federal Rural University of Pernambuco, Brazil Raquel Maria de Oliveira Pires --- Federal University of Lavras, Brazil Moema Barbosa de Sousa --- Federal Rural University of Pernambuco, Brazil Paulo César da Silva Santos --- Federal Rural University of Pernambuco, Brazil Erika Rayra Lima Nonato --- Federal Rural University of Pernambuco, Brazil Gabriel Alves de Lima --- Federal Rural University of Pernambuco, Brazil Ricardo Gallo --- Federal Rural University of Pernambuco, BrazilSeed quality is essential to ensure success in plant production. Traditionally, germination testing is widely used to assess seed viability, but it is a time-consuming process. Consequently, rapid tests have been increasingly explored due to their efficiency and speed. This... -
Species-specific wood volume growth models outperform unified model across eucalypt species
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Emanuel Ferrari do Nascimento --- Universidade Federal de Viçosa (UFV), Brazil João Amaro Ferreira Vieira Netto --- Universidade Federal de Viçosa (UFV), Brazil Marco Antônio Peixoto --- University of Florida, USA Larissa Pereira Ribeiro Teodoro --- Universidade Federal do Mato Grosso do Sul (UFMS), Brazil Paulo Eduardo Teodoro --- Universidade Federal do Mato Grosso do Sul (UFMS), Brazil Leonardo Lopes Bhering --- Universidade Federal de Viçosa (UFV), BrazilForest ecosystems play an essential role in maintaining biodiversity and mitigating global warming. Intensively managed forest plantations represent a major raw material source for pulp, timber and paper industries. The objective of this study was to apply the model identity... -
The impact of entrepreneurial cognition on opportunity-capitalizing capabilities and business model change: Evidence from Egypt
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Nancy Bouchra Hanna --- Amity University Dubai, UAE Erich Zahn --- University of Stuttgart, Germany Hadia H. Abdel Aziz --- Universities of Canada, Egypt Christine Madonna Kirkland --- Western Carolina University, USA R. Michael Holmes --- Florida State University, USAThis study advances the upper echelons literature by examining the (a) cognitive microfoundations of business model change and (b) intervening organizational mechanisms that help to explain the influence of strategic leaders on firm outcomes. We develop our theory by considering... -
Building an ethical artificial intelligence corporate governance framework for the integration of emerging technologies into business processes
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Husain Coovadia --- University of Johannesburg, South Africa Ben Marx --- University of Johannesburg, South Africa Ilse Botha --- University of Johannesburg, South Africa Nusirat O. Gold --- University of Johannesburg, -
Participant acceptability and clinician satisfaction of cognitive behavioural therapy and medication management algorithm compared with enhanced standard care for treatment of depression among youth with HIV
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Emily A Barr --- University of Texas Health Science Center at Houston, USA Kristin Baltrusaitis --- Harvard T.H. Chan School of Public Health, USA Betsy D Kennard --- University of Texas Southwestern Medical Center, USA Graham J Emslie --- University of Texas Southwestern Medical Center, USA Chelsea Krotje --- , USA Kevin Knowles --- , USA Sarah Buisson --- , USA Lauren Bergam --- Harvard T.H. Chan School of Public Health, USA Jaime G Deville --- David Geffen School of Medicine at the University of California, USA Susan L Gillespie --- , USA Melissa Shikora --- , USA Ellen Townley --- National Institute of Allergy and Infectious Diseases, National Institute of Health, USA David E Shapiro --- Harvard T.H. Chan School of Public Health, USA Larry K Brown --- Alpert Medical School of Brown University, USABackground: Primary results of the International Maternal Pediatric Adolescent AIDS Clinical Trials Network (IMPAACT) 2002 trial showed that cognitive behavioural therapy (CBT) and medication management algorithm (MMA) (COMB-R) significantly improved depression in youth with HIV (YWH) compared with enhanced standard... -
Approximate controllability of a parabolic dynamic equation on homogeneous time scales
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Martin Bohner --- Missouri University of Science and Technology, USA Cosme Duque --- Universidad de Los Andes, Hugo Leiva --- University YachayTech, School of Mathematical and Computational Siences, San Miguel de Urcuqui, EcuadorThis paper aims to explore the approximate controllability of a semilinear system of parabolic dynamic equations on homogeneous time scales. Building on the innovative semigroup theory for time scales introduced in [13], we leverage a pivotal lemma from [5] that... -
More listening: Philosophy as bluesology
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Thunder Storm Heter --- East Stroudsburg University, USAThis essay studies the work of Mabogo More, arguing that More is a philosopher of listening. The essay deals with More’s critique of white liberalism, arguing that More offers several varieties of critiques of being-a-white-philosopher-in-the-world. -
Black feminist transcendence framework: Mabogo P. More’s politics of being and intersectionality
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Sarah Setlaelo --- Harvard University, USAThis article suggests a convergence of three areas of scholarship, namely black feminism, black existentialism, and the concept of intersectionality, towards a “Black Feminist Transcendence Framework” that addresses antiblack-sexism or antiblack-racist-sexism. South African philosopher, Mabogo Percy More, throughout his work,... -
Looking Through Philosophy in Black
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Sarah Setlaelo --- Center for African Studies, Harvard University, USA -
Sartre on Contingency: Antiblack Racism and Embodiment
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Sarah Setlaelo --- Center for African Studies, Harvard University, USA -
Noel Chabani Manganyi: Being-Black-While-Alienated in Apartheid South Africa
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Sarah Setlaelo --- Harvard University, USA -
Special Issue on Mabogo Percy More
Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Sarah Setlaelo --- Harvard University, USA Chantelle Gray --- University of Johannesburg, South Africa -
Financial analysts’ information role on brand capital
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Yifei Chen --- Southwestern University of Finance and Economics, China Dan Palmon --- , USA Li Zhang --- , USASelf-created intangible assets are crucial in firm valuations but are difficult for investors to evaluate because they are not recognised in financial statements. This study examines whether sell-side financial analysts contribute to the market’s understanding of the value of brand... -
Momentum and reversal effects in the Korean stock market
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Daeyun Kang --- Sungkyunkwan University, Korea Doojin Ryu --- Sungkyunkwan University, Korea Robert I. Webb --- , USAWe analyse a long-term dataset of the Korean equity market from 1983 to 2023 to explore the momentum and reversal effects in both individual stocks and industry sectors. In general, portfolios based on individual stock momentum strategies exhibit a reversal... -
Using Digital Earth Africa to monitor chlorophyll-a concentration and detect harmful algal blooms in Suguti Bay, Lake Victoria, Tanzania
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JE Gimode --- Ardhi University, Tanzania AD Msusa --- Ardhi University, Tanzania Z Ngereja --- Ardhi University, TanzaniaLake Victoria is a vital source of drinking water for millions, necessitating continuous monitoring of chlorophyll-a (Chl-a) concentrations to assess its trophic status and support sustainable water resource management. This study aimed to provide a scalable, cost-effective alternative to traditional... -
The amphibians and reptiles of Ngel Nyaki Forest Reserve on the Mambilla Plateau of eastern Nigeria
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Denise Arroyo-Lambaer --- Instituto de Biología, Universidad Nacional Autónoma de México, México Lauren A Scheinberg --- , USA Jens V Vindum --- , USA Walter P Tapondjou --- University of Florida, USA Morgan G Davidson --- University of Florida, USA Hazel Chapman --- University of Canterbury, New Zealand David C Blackburn --- , USAThe herpetofauna of the montane forests of Taraba State in eastern Nigeria is poorly known. During the twentieth century, two short surveys of amphibian and reptile diversity were conducted on the Mambilla Plateau, but these did not generate a comprehensive... -
A comprehensive phylogeny of night adders (Causus)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Krystal A Tolley --- University of Johannesburg, South Africa Jody M Barends --- University of Johannesburg, South Africa Eli Greenbaum --- University of Texas at El Paso, USA Werner Conradie --- Port Elizabeth Museum (Bayworld), South AfricaAfrican night adders (Causus) are an enigmatic group of viperid snakes in the subfamily Viperinae. These snakes have a suite of unusual characters atypical of other species of vipers (e.g., oviparous reproduction, round pupils) but are firmly placed within the... -
On the Dunford-Pettis Property of Order p of tensor products
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ioana Ghenciu --- University of Wisconsin-River Falls, USAIn this paper we give sufficient conditions on Banach spaces X and Y so that the injective tensor product X ⊗ε Y and the dual (X ⊗π Y )∗ of their projective tensor product, do not have the DPPp ,... -
Ethnic leadership in Africa: A systematic literature review
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Codou Samba --- The University of Tennessee, USA Phyllis Swanzy-Krah --- Universität Leipzig, Germany Charlotte Adjanor-Doku --- Kwame Nkrumah University of Science and Technology, Ghana Isaac Delali Darke --- Kwame Nkrumah University of Science and Technology, Ghana Baniyelme D. Zoogah --- McMaster University, CanadaThis paper presents a systematic literature review of ethnic leadership in Africa, analyzing 31 peer-reviewed articles published between 1960 and 2024 across multiple disciplines. We define ethnic leadership as the process by which individuals mobilize shared ethnic identity as a... -
Brain drain in African healthcare: A systematic review and policy implications
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Gregory N. Orewa --- University of Texas at San Antonio, USA Nero Edevbie --- Sam Houston State University, Ifeyimika O. Ajaiyeoba --- University of Wisconsin-Parkside, USA Sofia Smeigh --- University of Texas at San Antonio, USA Juliet O. Osuji --- North Carolina Agricultural and Technical State University, USAThe migration of highly educated and working professionals from Africa to more developed regions – commonly referred to as “brain drain” – is a significant issue that undermines the continent's socioeconomic progress. This paper provides a systematic literature review of... -
Review issue: Management research in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Katia M. Galdino --- Parker College of Business, Georgia Southern University, USA Diane Afoni-Lawong Tanly --- University of Alabama at Birmingham Collat School of Business, USA -
Using interactive SMS support groups to prevent mother-to-child HIV transmission in South Africa: a qualitative analysis of social and psychological benefits
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Cindy A. Crusto --- , USA Samantha Pittenger --- Yale University School of Medicine, USA Jessica Costeines --- Yale University School of Medicine, USA Ndidiamaka Amutah-Onukagha --- Tufts University School of Medicine, USA Anna Kydd --- SHM Foundation, UK Maretha Visser --- University of Pretoria, South Africa Thu Do --- Gilead Sciences, USA Andrea Dean --- Baylor College of Medicine/Texas Children’s Hospital, USA Brian Forsyth --- Yale University School of Medicine, USAAlthough advances have been made in the prevention of mother-to-child transmission (PMTCT) of HIV, social and psychological factors associated with learning of an HIV diagnosis and living with HIV during pregnancy can impact medication adherence and health outcomes. Mobile technology... -
A sociolinguistic study of cluster simplification in Nigerian English
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Oluwasegun Matthew Amoniyan --- University of Pittsburgh, USAThis study is an exploration of the consonant cluster simplification in Nigerian English (NE), elucidating the complex interplay between acoustic cues and sociolinguistic factors. In contrast to previous research that overlooked the role of social variables in shaping NE cluster... -
Examining the impact of digital media technology in teaching Igbo to heritage learners
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Toochukwu Mariagorettie Awolor --- University of Utah, USA Sopuruchi Christian Aboh --- The Hong Kong Polytechnic University, Hong KongLittle research attention has been given to the role of digital media technologies such as Zoom, WhatsApp and PowerPoint in teaching Igbo as a heritage language. To address this research gap, this study examined the impact of digital media technology... -
The mediating effect of individual beliefs between self-testing knowledge and HIV self-testing use
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gerald Mukisa Nsereko --- Makerere University, Uganda Khamisi Musanje --- Makerere University, Uganda Loyce Kiiza Kobusingye --- Makerere University, Uganda Martin Mabunda Baluku --- Makerere University, UgandaBackground: HIV self-testing has been introduced as a secondary mode of testing in most countries as a way of counteracting the barriers associated with the traditional clinic-based method of testing. As the entry point into the HIV care cascade, testing... -
The flexural and sawn timber properties of Pinus patula × tecunumanii (low elevation) from the southern Cape, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: C Brand Wessels --- Stellenbosch University, South Africa Christel Malek --- MTO Group, South Africa Gary R Hodge --- North Carolina State University, USA Bruno Monteiro Balboni --- Stellenbosch University, South AfricaPinus species currently planted for saw log production in the southern Cape, South Africa, present various challenges for growers and processors, including susceptibility to Fusarium circinatum, poor stem form, and various wood quality concerns. In this study P. patula ×... -
We are all human: music, diplomacy and the Tumaini Festival in Malawi’s Dzaleka refugee camp
Item type: Journal Article • Journal: Journal of the Musical Arts in Africa • Authors: Lisa Gilman --- Institute for Immigration Resesarch and Folklore Program, USAThe Tumaini Festival is an annual refugee-led arts event that takes place in the Dzaleka refugee camp near Lilongwe, Malawi. According to Malawian law, refugees and asylum seekers are required to live in the camp and not permitted to work;... -
Exploring SDG 2 disclosure of South African food and beverage companies
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Elizma Booysen --- Management Cybernetics research niche area, North-West University, South Africa Susanna L Middelberg --- Management Cybernetics research niche area, North-West University, South Africa Nadia Gulko --- University of Lincoln, UK -
Pelczyński’s property (V) and (V∗) on tensor products and spaces of compact operators
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Qingying Bu --- University of Mississippi, University, USALet U be a reflexive Banach space with an unconditional basis and X be any Banach space. We show that if X has Pelczyński’s property (V) then (U,X) has Pelczyński’s property (V). We also show that if X has Pelczyński’s... -
Distance domination and linear-vizing constants
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Paul Horn --- University of Denver, USA Di Qin --- University of Denver, USAGeneralizing and strengthening a classical result of Vizing, Rautenbach proved a linear relationship between the domination number, the maximum degree, the number of vertices, and the number of edges for graphs with no isolated vertices. The sharpest version of this... -
Mobile money usage and performance of women-owned enterprises: Evidence from Kenya
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Tesfaye T. Lemma --- Towson University, USA Mthokozisi Mlilo --- University of the Witwatersrand, South AfricaThe rapid expansion of digital financial services has sparked discussions about their potential to help financially constrained businesses overcome performance challenges. We investigate whether female-owned businesses, which are often more financially constrained than male-owned businesses, could reduce their performance gap... -
On Finite Groups with Element Order Set of Width 2
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Yang Shu --- Shenzhen College of International Education, China Yong Yang --- Department of Mathematics, USAIn this paper, we study the structure of finite groups with element order set of width 2. -
Optimizing real-time stereo image retargeting for AR/VR: Lightweight disparity CNNs on AI-Driven edge architectures
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mahendra T. Jagtap --- University of South Florida, Muma College of Business (Sarasota-Manatee Campus), USA Bhuvan Unhelkar --- University of South Florida, USA Pravin R. Kshirsagar --- JD College of Engineering and Management, India Nitin Rakesh --- Symbiosis Institute of Technology, India R. Thiagarajan --- VelTech multiTech Dr. Rangarajan Dr. Sakunthala Engineering College, India Vishal Patil --- Loknete Gopinathji Munde Institute of Engineering Education & Research, Nashik and SPPU, IndiaReal-time stereo image retargeting for augmented reality (AR) and virtual reality (VR) necessitates precise per-pixel depth estimation and ultra-low latency performance on resource-limited edge devices. Current disparity convolutional neural networks (CNNs) and retargeting pipelines are unable to meet these demanding... -
Federated machine learning for cross-bank credit card fraud detection: A privacy-preserving framework
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Dhanveer Singh --- Technology Leader Capital One USA, USA Raja Chattopadhyay --- Technology Leader Capital One USA, USAFederated machine learning is a solution to the problem of identifying instances of credit card fraud in any bank without violating privacy laws. The framework proposed in this paper any bank without violating privacy laws. The framework proposed in this... -
Rethinking literacy education in Kavango West
Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies • Authors: Lauren Pinkerton --- Jefferson Community and Technical College, USAThis article explores the low literacy pass rates among Grades 4–10 English as a Second Language (ESL) learners in Kavango West, Namibia, which stood at 34.7% in 2023. It attributes this significant shortfall, compared to the national Vision 2030 goal... -
‘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... -
Measuring adaptive decision making in livestock grazing systems
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Jenna M Likins --- Department of Rangeland, Wildlife and Fisheries Management, Texas A&M University, College Station, USA Jason E Sawyer --- East Foundation, USA Urs P Kreuter --- Department of Ecology and Conservation Biology, Texas A&M University, College Station, USAAdaptive management is essential for managing complex grazing systems under environmental uncertainty. However, its implementation in grazing operations is inconsistently defined and measured. This study addresses this limitation by developing and validating the Adaptive Management Index (AMI), a standardised instrument... -
Sustainable intensification in rangelands of the southernmost region of Chile
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Raúl J Lira Fernandez --- Instituto de Investigaciones Agropecuarias, Centro Regional de Investigación Kampenaike, Chile Andres F Cibils --- Livestock, Forage and Pasture Management Research Unit, USDA ARS OCPARC, USARangeland-based sheep ranching has shaped the agricultural economy of Chile’s southernmost grasslands for over a century and a half. Ranching systems in the region, established in the late 1800s, transitioned from large European corporate enterprises, common until the mid-20th century,... -
Systematic scoping review on HIV services for males in Sub-Saharan Africa: Access, barriers, and research gaps
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Patience Manjengwa --- School of Health Systems and Public Health, University of Pretoria, South Africa Clarence Yah --- School of Health Systems and Public Health, University of Pretoria, South Africa Nozipho Musakwa --- Health Economics and Epidemiology Research Office, South Africa Alfred Musekiwa --- School of Health Systems and Public Health, University of Pretoria, South Africa -
HIVST in the presence of a partner among fishermen in Western Kenya: A qualitative study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Peter Abade --- Impact Research and Development Organization, Kenya Phoebe Olugo --- Impact Research and Development Organization, Kenya Sarah A. Gutin --- Department of Community Health Systems, School of Nursing, University of California San Francisco, USA Holly Nishimura --- Department of Medicine, Division of Prevention Sciences, University of California San Francisco, USA Jayne Lewis-Kulzer --- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, USA Marguerite Thorp --- Division of Infectious Diseases, University of California, USA Benard Ayieko --- Impact Research and Development Organization, Kenya Lennah Oluoch --- Impact Research and Development Organization, Kenya David Angawa --- Impact Research and Development Organization, Kenya Carol S. Camlin --- Department of Medicine, Division of Prevention Sciences, University of California San Francisco, USA Zachary A. Kwena --- Kenya Medical Research Institute, Kenya -
With an Effluent Eye: Migrancy, Excess, and Belonging in Jane Bryce’s Zamani
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Sam Dennis Otieno --- The Pennsylvania State University, USAThis article examines Jane Bryce’s Zamani (2023) through the conceptual lens of the effluent eye, drawing on Rosemary Jolly’s (2023) theorization of effluence alongside Achille Mbembe’s (2019) necropolitics and Mahmood Mamdani’s (2020) critique of ethnic nationalism. I argue that Zamani...
