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Conservation Developments in South African Forestry
Item type: Journal Article • Journal: South African Forestry Journal • Authors: R. McC. Pott --- ,The historical development of environmental conservational activities within the South African Forestry Industry is followed, and the changing emphasis from the conservation of the remaining indigenous forests (pre-1900) to water conservation, to natural assets and unplanted areas is highlighted. The... -
A simple method for supplementing long-term weather records in a maize-modelling exercise
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: B. S.E. Clemence --- , Republic of South AfricaMissing weather data is a very real problem when using daily-incrementing crop growth simulation models. This is especially true in the case of daily air temperature and solar radiation data. The aim of this study was to compare two simple... -
Prosedures en probleme by die gebruik van die PUTU9–87 gewasgroeisimulasiemodel vir koring onder besproeiing in die Vanderkloof-Staatswaterskema
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. H.F. Botes --- Departement Landbou-ekonomie, Republiek van Suid-Afrika L.K. Oosthuizen --- Departement Landbou-ekonomie, Republiek van Suid-AfrikaDie doel van hierdie ondersoek was om die PUTU9–87 gewasgroeisimulasiemodelte kalibreer om koringop-brengste en die grondwaterinhoud op 'n bevredlgende wyse in die Vanderkloof-Staatswaterskema te voor- spel, gegewe beperkte eksperimentele data. Opbrengste wat met PUTU voorspel is, word vergelyk met eksperimentele... -
Using the Nearest Neighbour method to substitute missing daily solar radiation data
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.N. Bezuidenhout --- , South AfricaGround level solar radiation reflects the amount of energy that reaches the earth's surface and is utilised by people, animals and plants. Biological models often require such radiation records for long periods of time, however, a lack of radiation data... -
Open-top chambers to study air pollution impacts in South Africa. Part I: microclimate in open-top chambers
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: E Heyneke --- School of Environmental Science and Development, South Africa PR Smit --- School of Environmental Science and Development, South Africa L van Rensburg --- School of Environmental Science and Development, South Africa GHJ Krüger --- School of Environmental Science and Development, South AfricaSouth Africa's large industrial growth has created an obvious need to extend, improve and evaluate air pollution impacts on plants in order to assess present-day and future impacts of air pollutants on crop yields. In order to provide guidelines for... -
Estimation of thrips (Fulmekiola serrata Kobus) density in sugarcane using leaf-level hyperspectral data
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: ElfatihM Abdel-Rahman --- School of Environmental Sciences, South Africa Mike Way --- , South Africa Fethi Ahmed --- School of Environmental Sciences, South Africa Riyad Ismail --- School of Environmental Sciences, South Africa Elhadi Adam --- School of Environmental Sciences, South AfricaThe aim of this study was to investigate the potential use of leaf-level hyperspectral data to predict the density of sugarcane thrips Fulmekiola serrata (Kobus). A hand-held spectroradiometer was used to make the spectral measurements on spindle leaves of 4-... -
Web-based teaching, learning and research using accessible real-time data obtained from field-based agrometeorological measurement systems
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Michael J Savage --- Agrometeorology Discipline, Soil-Plant-Atmosphere Continuum Research Unit, School of Agricultural, Earth and Environmental Sciences, South Africa Michael G Abraha --- Agrometeorology Discipline, Soil-Plant-Atmosphere Continuum Research Unit, School of Agricultural, Earth and Environmental Sciences, South Africa Nicholas C Moyo --- Agrometeorology Discipline, Soil-Plant-Atmosphere Continuum Research Unit, School of Agricultural, Earth and Environmental Sciences, South Africa Nile Babikir --- Agrometeorology Discipline, Soil-Plant-Atmosphere Continuum Research Unit, School of Agricultural, Earth and Environmental Sciences, South AfricaTo enhance teaching and learning in agrometeorology and allied disciplines, a Web-based data and information system was developed. The system uses field-based agrometeorologcial measurements, from automatic weather, radiation and temperature stations, to collect and display near real-time and previous data... -
ASPECTS OF THE ECOLOGY OF KNERIA AURICULATA (PELLEGRIN, 1905) (PISCES: KNERIIDAE) FROM THE EASTERN TRANSVAAL SOUTH AFRICA
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: C.J. Kleynhans --- Transvaal Directorate of Nature Conservation, South AfricaSeven natural populations of Kneria auriculata occur in tributaries of the Crocodile River (Incomati System) on the eastern Transvaal escarpment. The routes it probably used to colonize these streams are discussed and used to explain its current restricted distribution with... -
A NOTE ON THE REINTRODUCTION OF BARBUS TREURENSIS GROENEWALD 1958 (PISCES: CYPRINIDAE) INTO TIIE TREUR RIVER, MPUMALANGA, SOUTH AFRICA.
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: J. S. Engelbrecht --- , South Africa F. Roux --- , South AfricaThe Treur River Barb (Barbus treurensis) was reintroduced into the Treur River after being extinct in this river for about twenty years. During March 1995, 504 individuals were released at a carefully selected site. Recent surveys have shown that, within... -
Towards an Information System for Forestry
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Christoph Kätsch --- Department of Forest Science, BrianV. Bredenkamp --- Department of Forest Science,Management of information as a production factor is imperative in modern forestry practice. However, development of individual application programmes has resulted in systems which cannot be integrated without excessive effort and expense. It is shown that the route to an... -
“I have undergone some metamorphosis!” The Impact of REds on South African Educators Affected by the Hiv/Aids Pandemic. A Pilot Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Linda Carol Theron --- North-West University, South AfricaThe study investigated the efficacy of Resilient Educators (REds), a group intervention program, designed to empower educators affected by the HIV/Aids pandemic and in research in progress. Fifteen participants (three male; twelve female) from various primary schools in two different... -
Optimal implicational bases for finite modular lattices
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Marcel WildEach finite closure system, whence each finite lattice, can be described in terms of "implicational bases" (called "covers of functional dependencies" in relational database theory). Although a NP - complete problem in general, it turns out that for modular lattices... -
The quality of HIV/AIDS case-detection and case-reporting systems in Mozambique
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Baltazar Chilundo Sundeep Sahay Johanne SundbyDespite the underlying importance of surveillance systems for the management of HIV/AIDS prevention and control programmes, there has been limited analysis of the quality of HIV/AIDS case-detection and case-reporting systems, beginning with peripheral facilities through to those at national levels... -
Socio-demographic and clinical features of HIV-positive outpatients at a clinic in south-west Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: FrankI Ojini Adenike CokerDespite the increasing prevalence of HIV in Nigeria, there is scarce knowledge about the spectrum of HIV-related diseases in the country. This paper documents the profile of outpatients seen at the HIV clinic of the Lagos University Teaching Hospital (LUTH),... -
Competing or co-existing? Representations of HIV/AIDS by white women teachers in post-apartheid South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lauren de Kock Jane WillsThis study explores the social representations of HIV and AIDS that circulate among white women teachers in South Africa, a group whose personal risk of the disease is low but who have a major role to play in shaping attitudes... -
Housing conditions of home-based care patients in Botswana and the implications for HIV care
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lily Clara Fidzani --- Department of Family and Consumer Sciences, Botswana KesitegileSM Gobotswang --- Department of Family and Consumer Sciences, BotswanaPeople living with HIV or with a terminal disease face frequent health risks due to opportunistic infections which affect their way of life and dramatically increase their risk of death. Increasingly, terminally ill patients in Botswana are cared for at... -
Poverty, sexual behaviour, gender and HIV infection among young black men and women in Cape Town, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nicoli Nattrass --- Centre for Social Science Research (CSSR), South Africa Brendan Maughan-Brown --- Southern Africa Labour and Development Research Unit, South Africa Jeremy Seekings --- Centre for Social Science Research (CSSR), South Africa Alan Whiteside --- Health Economics and HIV/AIDS Research Division (HEARD), South AfricaThis article contributes methodologically and substantively to the debate over the importance of poverty, sexual behaviour and circumcision in relation to HIV infection, using panel data on young black men and women in Cape Town, South Africa. Methodological challenges included... -
A comparison of several methods of assessing river condition using benthic macroinvertebrate assemblages
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CA BrownThis paper attempts to address some of the problems that are faced in the endeavour to minimise the time and financial costs of environmental monitoring. At the same time, it aims to assess the usefulness to freshwater studies of some... -
Update on the bathymetry of Lake Mweru (Zambia), with notes on water level fluctuations
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ArthurR Bos CyprianK Kapasa PaulAM van ZwietenA new bathymetric map of Lake Mweru was developed, displaying previously unknown morphological features and correcting the shape of the shoreline as presented in older maps. Water depth was measured during 11 transect cruises in early 1994. Two depressions were... -
A hotspot of large branchiopod diversity in south-eastern Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: T Nhiwatiwa --- KU Leuven, Laboratory of Aquatic Ecology, Belgium A Waterkeyn --- KU Leuven, Laboratory of Aquatic Ecology, Belgium BJ Riddoch --- Department of Biological and Medical Sciences, UK L Brendonck --- KU Leuven, Laboratory of Aquatic Ecology, BelgiumLarge branchiopods are considered threatened across much of their global range. However, because several regions, including Zimbabwe in general and its south-eastern lowveld in particular, remain largely unstudied, interpretations of species distribution patterns are often based on limited data. A... -
Distribution patterns of key fish species of the southern Benguela ecosystem: an approach combining fishery-dependent and fishery-independent data
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L. Pecquerie L. Drapeau P. Fréon J. C. Coetzee R. W. Leslie M. H. GriffithsWithin the context of an ecosystem approach for fisheries, there is a need for quantitative information on distributions of key marine species. This information is valuable input for modelling species interactions in the southern Benguela ecosystem. In the present study,... -
St Helena Bay (southern Benguela) then and now: muted climate signals, large human impact
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Hutchings --- Department of Environmental Affairs, South Africa A Jarre --- Marine Research (MA-RE) Institute, South Africa T Lamont --- Department of Environmental Affairs, South Africa M van den Berg --- Department of Environmental Affairs, South Africa SP Kirkman --- Department of Environmental Affairs, South AfricaThe development of suitable reference states for ecosystem-based management requires documentation of changes in structure and functioning of marine ecosystems, including assessment of the relative importance of bottom-up and top-down processes as drivers of change. We used monitoring data available... -
Patterns in abundance, population structure and biology of knife prawn Haliporoides triarthrus on deep-water trawl grounds off eastern South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J Robey --- Oceanographic Research Institute, South Africa ST Fennessy --- Oceanographic Research Institute, South Africa BI Everett --- Oceanographic Research Institute, South Africa J Santos --- Norwegian College of Fisheries Science, Norway JC Groeneveld --- Oceanographic Research Institute, South AfricaThe deep-water trawl fishery along the KwaZulu-Natal coast of South Africa targets several crustacean species, with the knife (or pink) prawn Haliporoides triarthrus contributing most of the catch. Logbook data of fishing effort and catch between 1988 and 2010 were... -
A bootstrap method for estimating bias and variance in statistical fisheries modelling frameworks using highly disparate datasets
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BÞ Elvarsson --- Science Institute, Iceland L Taylor --- Science Institute, Iceland VM Trenkel --- Ifremer [French Research Institute for the Exploitation of the Sea], France V Kupca --- HPC2N [High Performance Computing Center North], Umeå University, Sweden G Stefansson --- Science Institute, IcelandStatistical models of marine ecosystems use a variety of data sources to estimate parameters using composite or weighted likelihood functions with associated weighting issues and questions on how to obtain variance estimates. Regardless of the method used to obtain point... -
Long-term population effect of male circumcision in generalised HIV epidemics in sub-Saharan Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Michel GarenneThis paper examines the complex relationship between male circumcision and HIV prevalence and incidence in sub-Saharan African countries that have generalised epidemics. In South Africa, the mean yearly HIV incidence and an estimate of the net reproduction rate of the... -
Growth, productivity, and scientific impact of sources of HIV/AIDS research information, with a focus on eastern and southern Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Omwoyo Bosire OnyanchaAs channels of communicating HIV/AIDS research information, serial publications and particularly journals are increasingly used in response to the pandemic. The last few decades have witnessed a proliferation of sources of HIV/AIDS-related information, bringing many challenges to collection-development librarians as... -
Data-protection standards and confidentiality of HIV/AIDS status in the workplace — a South African case study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Zuzanna Muskat-GorskaThe article contextualises an emerging new regime for information privacy in South Africa (i.e. the draft Protection of Personal Information Bill). Subsequently, it discusses the possibility of successful implementation of international data-protection standards in an environment where there is an... -
Making sense of censuses and dealing with missing data: trends in pup counts of Cape fur seal Arctocephalus pusillus pusillus for the period 1972–2004
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SP Kirkman WH Oosthuizen MA Meÿer PGH Kotze J-P Roux LG UnderhillTrends in the population of Cape fur seals Arctocephalus pusillus pusillus were estimated from counts of pups on aerial photographs of colonies taken between 1972 and 2004 to determine trends in the overall population and subpopulations. Incomplete coverage resulted in... -
Sea level monitoring in Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PL Woodworth A Aman T AarupA review is provided of the African sea level dataset, which is limited not only in size, especially given the great length of the African coastline, but also in quality. The review is undertaken primarily from Permanent Service for Mean... -
Estimating plot-level forest structural attributes using high spectral resolution ASTER satellite data in even-aged Eucalyptus plantations in southern KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: MT Gebreslasie FB Ahmed JAN van AardtThis study assessed the suitability of both visible and shortwave infrared of ASTER reflectance bands and various vegetation indices for estimating forest structural attributes of Eucalyptus species. The study was conducted in even-aged monoculture plantations of E. grandis and E... -
Blue whales Balaenoptera musculus off Angola: recent sightings and evaluation of whaling data
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: I Figueiredo --- Sítio da Fonte da Murta, Portugal CR Weir --- Ketos Ecology, UKThe population of blue whales Balaenoptera musculus inhabiting the South-East Atlantic (Gabon to South Africa) was heavily depleted by commercial whaling. We report four photographically-verified sightings, and one probable sighting, of blue whales in deep waters (>1 000 m) off... -
Pattern of domestic violence among pregnant women in Jos, Nigeria
Item type: Journal Article • Journal: South African Family Practice • Authors: ANI Gyuse --- Department of Family Medicine, Nigeria AP Ushie --- ECWA Evengel Hospital, NigeriaBackground: Domestic violence is a global concern. Domestic violence refers to violence inflicted on a partner (mostly females) within the context of the family or an intimate relationship. It is known to be responsible for numerous hospital visits undertaken by... -
Tablet computers for recording tuberculosis data at a community health centre in King Sabata Dalindyebo Local Municipality, Eastern Cape: a proof of concept report
Item type: Journal Article • Journal: South African Family Practice • Authors: Don O’Mahony --- Department of Family Medicine, Graham Wright --- Department of Family Medicine,Background: Data at primary healthcare (PHC) clinics are handwritten in registers by nurses for submission to the District Health Information System (DHIS). Compared to pen and paper, data capture, using handheld computers, has fewer errors, is more efficient and is... -
Computerised inventory management for a manufacturing industry: A case study in Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Emmanuel Seye Owoeye --- Mechanical Engineering Department, Nigeria Samuel Babatope Adejuyigbe --- Mechanical Engineering Department, Nigeria Bukola Olalekan Bolaji --- Mechanical Engineering Department, Nigeria A.F. Adekoya --- Computer Science Department, NigeriaVarious authors have suggested that the cost of purchasing and holding inventory can account for as much as 60%–80% of the total cost of a product or service. Usually, only some of the inventory (about 10%) contributes to 70%–80% of... -
Evidence for lacustrine breeding by sanjika Opsaridium microcephalum (Teleostei: Cyprinidae) in Lake Malawi
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: D Tweddle --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa GF Turner --- School of Biological Sciences, UKThree species of Opsaridium occur in the Lake Malawi catchment. The kabyabya Opsaridium tweddleorum is a small species restricted to inflowing rivers and streams, the mpasa Opsaridium microlepis is a large lake-dwelling species that ascends the lower reaches of inflowing... -
Assessing the suitability of commercial fisheries data for local-scale marine spatial planning in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Chalmers --- Department of Ichthyology and Fisheries Science, South Africa A Oosthuizen --- Park Planning and Development, South African National Parks, South Africa A Götz --- Department of Ichthyology and Fisheries Science, South Africa A Paterson --- South African Institute for Aquatic Biodiversity, South Africa WHH Sauer --- Department of Ichthyology and Fisheries Science, South AfricaThis study integrates fisheries logbook data with observer and vessel monitoring system (VMS) data in order to assess the accuracy of reported data and to develop high-resolution spatial data suitable for use in local-scale marine spatial planning analyses. Spatial assessments... -
Efficiency of Mexico's regional innovation systems: an evaluation applying data envelopment analysis (DEA)
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Cuitláhuac Valdez Lafarga --- Student in Doctoral Programme, Mexico Jorge Inés León Balderrama --- Regional Development Department, MexicoThe aim of this study is to measure the relative technical efficiency of Mexico´s regional innovation systems, as defined by its 32 states. Furthermore, there is an interest to establish the relationship between the amount of resources for each regional... -
Solving the challenges of monitoring mobile populations: insights from studies of waterbirds in southern Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Hannah L Thomas --- Percy FitzPatrick Institute, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- Percy FitzPatrick Institute, DST–NRF Centre of Excellence, South Africa Graeme S Cumming --- Percy FitzPatrick Institute, DST–NRF Centre of Excellence, South AfricaHighly mobile species are difficult to monitor. It is often unclear from abundance estimates whether a population is genuinely declining or simply elsewhere. If the spatial and temporal scales of monitoring are inadequate, the data will only be useful if... -
So you want to get published? It’s all about theory, context and data
Item type: Journal Article • Journal: • Authors: Kevin D O’Gorman --- School of Management and Languages, Heriot-Watt University, Edinburgh, United Kingdom Thomas J W Farrington --- School of Management and Languages, Heriot-Watt University, Edinburgh, United KingdomThis paper offers guidance on writing for publication in peer-reviewed business and management journals. The approach outlined and illustrated within is the amalgamated result of many years of experience in academic writing, editing, and getting published. The paper is primarily... -
Estimating technical and scale efficiency in banks and its relationship with economic value added: A South African study
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Oberholzer --- WorkWell: Research Unit for Economic and Management Sciences, Faculty Economic and Management Sciences, G van der Westhuizen --- Unit for Business Mathematics and Informatics, Faculty Economic Sciences and Information Technology,This study used monthly balance sheet data, annual financial statement reports as well as other relevant data to calculate the technical and scale efficiency estimates (determined by Data Envelopment Analysis (DEA)) as well as the performance measurement of economic value... -
A model to compare firms’ efficiency in creating shareholders’ value
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Oberholzer --- WorkWell: Research Unit for Economic and Management Sciences,The first objective of this study is to develop a Data Envelopment Analysis (DEA) model to determine the relative technical efficiency of firms to create shareholders’ value. The second objective is to compare the technical efficiency with the profit ratios... -
Food and wine pairing: A new approach
Item type: Journal Article • Journal: • Authors: Peter Klosse --- Academie voor Gastronomie, Hotel Gastronomique De Echoput, Hoog Soeren, NetherlandsFlavour can be assessed objectively with the use of the newly developed flavour styles theory. In this approach, flavour is structured on the parameters contracting mouthfeel, coating mouthfeel and flavour richness. The result is the flavour styles cube. The eight... -
Opportunities and challenges for empirical strategy research in Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Ronald Klingebiel --- Frankfurt School of Finance and Management, Germany Christian Stadler --- Warwick Business School, UKThis editorial complements Michael Mol and Kamel Mellahi's commentary on promising research directions by taking a look at opportunities and pitfalls in empirical research in and about Africa. It highlights some interesting examples of data sources that carry the potential... -
Patterns in financial performance indicators of capital and labour intensive enterprises during an upswing and a decline in the economic cycle
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: JZ Bloom --- Department of Business Management, IJ Lambrechts --- Department of Business Management, NJ le Roux --- Department of Statistics and Actuarial Science,The objective of this paper is to investigate patterns in the behaviour of various financial performance indicators for capital intensive (CI) and labour intensive (LI) enterprises during an upswing (1987–1989) and a decline (1990–1992) phase of the economic cycle, as... -
Baseline patient profiling and three-year outcome data after metabolic surgery at a South African centre of excellence
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Maria-Terésa van der Merwe --- Centres for Metabolic Medicine and Surgery of South Africa, South Africa Gary Fetter --- Metabolic Medicine and Surgery Research Group, South Africa Sudha Naidoo --- Metabolic Medicine and Surgery Research Group, South Africa Renata Wilson --- Metabolic Medicine and Surgery Research Group, South Africa Nicola Drabble --- Metabolic Medicine and Surgery Research Group, South Africa David Gonçalves --- Metabolic Medicine and Surgery Research Group, South Africa Zubeida Mahomedy --- Metabolic Medicine and Surgery Research Group, South AfricaThe bariatric team at Waterfall City Hospital in Gauteng has performed 820 metabolic surgeries under the guidance of an extended team, and with comprehensive recordkeeping. Baseline profiling on more than 50 variables afforded insight into patients undergoing surgery. The available... -
Profile of patients and referrals at a midwife obstetric unit in Tshwane North subdistrict, Gauteng province
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: V. Horner --- South African Medical Research Council, T J Mashamba --- Obstetrics and Gynaecology Department,Midwife obstetric units (MOUs) are primary health level facilities at which antenatal care and delivery for low-risk patients are performed. They are important facilities because they are at the interface of the health system in South Africa and the population... -
The role of amateurs in the growth of bat conservation and research in South Africa
Item type: Journal Article • Journal: South African Journal of Zoology • Authors: P.J. Taylor --- Durban Natural Science Museum & Durban Bat Interest Group, South AfricaDuring the 1980s and 1990s, Britain experienced an unprecedented increase in scientific and public interest in bat conservation, culminating in 90 ‘bat groups’ by 1992. In South Africa, bats are poorly protected or unprotected, and most of the country's 54... -
Development and evaluation of an integrated electronic data management system in a South African metropolitan critical care service
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: NL Allorto --- Pietermaritzburg Metropolitan Department of Surgery, South Africa RD Wise --- Pietermaritzburg Department of Anaesthesia, South AfricaIntroduction: The importance of accurate healthcare data is vital when approaching current healthcare challenges, but is difficult to collect in busy, under-resourced environments. It was aimed to develop and implement an information system that is cost-effective, easy and practical for... -
Characteristics of the South African Food Composition Database, an essential tool for the nutrition fraternity in the country: Part I
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Na Danster --- Nutritional Intervention Research Unit, P Wolmarans --- Nutritional Intervention Research Unit,Information on the nutrient composition of food forms the foundation for determining the diet-health-disease-relationships in a country. The nutrient composition of foods is influenced by many factors such as climate, soil, cultivar/breed, the grade of ripeness at harvest and the... -
Use of the South African Food Composition Database System (SAFOODS) and its products in assessing dietary intake data: Part II
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: P. Wolmarans --- Nutritional Intervention Research Unit, E. Kunneke --- Division Dietetics, R. Laubscher --- Biostatistics Unit,A number of dietary research methodologies are available for the collection of quantitative dietary intake data. The methods most often used in South Africa include the 24-hour dietary recall, the quantitative food frequency questionnaire, and the dietary intake record. To... -
The importance of access to food intake data
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: M. Herselman --- Division of Human Nutrition; Faculty of Health Sciences, L Du Plessis --- Community Nutrition; Division of Human Nutrition, Faculty of Health Sciences, -
The lack of food intake data and the consequences thereof
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Iv Van Heerden --- Nutrition Consultant and Scientific Editor, Hc Schönfeldt --- Faculty of Natural and Agricultural Sciences,Generally, South African researchers working in the fields of nutrition and dietetics collect food intake data as a first step towards determining the nutritional status of various populations. However, on publication, the majority of the results obtained from these studies... -
Nutritional status and food intake data on children and adolescents in residential care facilities in Durban
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Hh Grobbelaar --- Department of Food and Nutrition Consumer Sciences, Ce Napier --- Department of Food and Nutrition Consumer Sciences, W Oldewage-Theron --- Centre of Sustainable Livelihoods,Objective: The aim of this study was to examine growth indicators and dietary intake patterns of children aged 4-18 years residing in residential care facilities in Durban. -
The asymmetric effects of financing deficits and surpluses on the pecking order theory in sub-Saharan Africa
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Chimwemwe Chipeta --- School of Economic and Business Sciences, South Africa Chera Deressa --- School of Business Studies, ZambiaThis paper is the first to examine the asymmetric effects of financing deficits and surpluses on the pecking order financing strategies in sub-Saharan Africa. Panel data estimation techniques are carried out on a sample of 564 non-financial firms for the... -
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... -
Structure and dynamics of demersal fish assemblages over three decades (1985–2012) of increasing fishing pressure in Guinea
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ML Camara --- Centre National des Science Halieutiques de Boussoura (CNSHB), Republic of Guinea B Mérigot --- Université de Montpellier, France F Leprieur --- Université de Montpellier, France JA Tomasini --- Université de Montpellier, France I Diallo --- Centre National des Science Halieutiques de Boussoura (CNSHB), Republic of Guinea M Diallo --- Centre National des Science Halieutiques de Boussoura (CNSHB), Republic of Guinea D Jouffre --- Institut de Recherche pour le Développement, SenegalIn a context of growing fishing pressures and recommendations for an ecosystem approach to fisheries, there is a need to monitor changes in fish communities over time. In this study, we analysed data from scientific trawl surveys carried out on... -
Happiness and life satisfaction in Rwanda
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kayonda Hubert Ngamaba --- School of Psychological Sciences, United KingdomThis study investigated predictors of happiness and life satisfaction in Rwanda. Data from the World Values Survey and gathered from 3 030 Rwandese (age ranging 16 to 90 years, mean age = 34.2, SD = 12.7; females = 50.5%) were... -
So you want to get published? It's all about theory, context and data
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Kevin D O'Gorman --- School of Management and Languages, Heriot-Watt University, United Kingdom Thomas J W Farrington --- School of Management and Languages, Heriot-Watt University, United KingdomThis paper offers guidance on writing for publication in peer-reviewed business and management journals. The approach outlined and illustrated within is the amalgamated result of many years of experience in academic writing, editing, and getting published. The paper is primarily... -
Sexual size dimorphism in a Tunisian population of Bosk's fringe-toed lizards Acanthodactylus boskianus asper
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Intissar Nasri --- , , Tunisia Abdessalem Hammouda --- , , Tunisia Foued Hamza --- , , Tunisia Slaheddine Selmi --- , , TunisiaInvestigating how patterns of sexual size dimorphism vary among local populations may be useful for understanding size evolution in lizards. We investigated patterns of sexual size dimorphism in a Tunisian population of Bosk's fringe-toed lizards Acanthodactylus boskianus asper, in relation... -
Morphological variation in the Sabota Lark Calendulauda sabota in southern Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sean M Marr --- Department of Biodiversity, South Africa Mmatjie L Mashao --- Department of Biodiversity, South Africa G Derek Engelbrecht --- Department of Biodiversity, South AfricaSeparation of the eight southern African subspecies of Sabota Lark Calendulauda sabota into thick-billed and slender-billed groups has been proposed. This study used biometric data obtained from museum skins in South Africa to evaluate morphological variation in the subspecies as... -
Managing and improving data quality through the adoption of data warehouse in the public sector
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Edzai Kademeteme --- Department of Informatics, South Africa Billy Mathias Kalema --- Department of Informatics, South Africa Pieter Pretorius --- Department of Informatics, South AfricaThe increasing use of technology in organizations has resulted in burgeoning sizes of data, a wider variety of data sources and diverse data structure, all calling for better storage, retrieval and analytics. The increasing demands that data make on organizations,... -
Towards a new model to benchmark firms’ operating efficiency: A data envelopment analysis approach
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Merwe Oberholzer --- Accounting Sciences, South Africa Dawie Mong --- Accounting Sciences, South Africa Jan van Romburgh --- Accounting Sciences, South AfricaThe purpose of the study was to construct two similar data envelopment analysis (DEA) models. The first contains only published accounting-based data and the second added weighted average cost of capital (WACC), a primary market-based determinant, as an input variable... -
Investment determinants: high-investment versus low-investment Portuguese SMEs
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Zélia Serrasqueiro --- Universidade of Beira Interior, CEFAGE-UBI, PortugalBased on data of two subsamples of 1 557 high-investment (HINV) small- and medium-sized enterprises (SMEs) and 1 454 low-investment (LINV) SMEs, and using the GMM (General Method of Moments) system (1998) dynamic estimator, this paper seeks to analyse whether... -
Manufacturing sector productivity growth drivers: Evidence from SADC member states
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Douglas Chikabwi --- Faculty of Commerce, Department of Economics, Zimbabwe Clainos Chidoko --- Faculty of Commerce, Department of Economics, Zimbabwe Calvin Mudzingiri --- Department of Economics, South AfricaThis study investigates major drivers of manufacturing sector productivity growth of selected Southern African Development Community (SADC1) member countries. Using country-specific, fixed effects panel data modelled in a Cobb Douglas production function for the period 2000–2013, the study estimated manufacturing... -
Characterisation of pigeon pea (Cajanus cajan) landraces grown in two climatic zones in KwaZulu-Natal province, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Lindah L Hluyako --- Discipline of Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Alfred O Odindo --- Discipline of Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Paramu Mafongoya --- Discipline of Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Nkanyiso J Sithole --- Discipline of Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Lembe S Magwaza --- Discipline of Crop Science, School of Agricultural, Earth and Environmental Sciences, South AfricaPigeon pea is an important legume in arid and semi-arid areas of the Sub-Saharan Africa. Knowledge of adaptation characteristics of genotypes would significantly enhance its production in diverse environments of the region. Field experiments were conducted at two sites, namely... -
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... -
DNA barcoding of South Africa’s ornamental freshwater fish – are the names reliable?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: KA van der Walt --- Department of Ichthyology and Fisheries Science, South Africa T Mäkinen --- South African Institute for Aquatic Biodiversity, South Africa ER Swartz --- South African Institute for Aquatic Biodiversity, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity, South AfricaTrade in freshwater ornamental fish in South Africa is currently regulated by a ‘blacklist’ to prevent potentially invasive taxa from establishing in the country. Because its effective implementation requires accurate identification, the aim of the present study was to test... -
Population structure of the sicklefin lemon shark Negaprion acutidens within the Curieuse Marine National Park, Seychelles
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RD Hodgkiss --- Global Vision International Seychelles, Seychelles A Grant --- Global Vision International Seychelles, Seychelles JHR McClelland --- Global Vision International Seychelles, Seychelles R Quatre --- Seychelles National Parks Authority, Seychelles B Rademakers --- Global Vision International Seychelles, Seychelles C Sanchez --- Nature Seychelles, Seychelles C Mason-Parker --- Global Vision International Seychelles, SeychellesThis study produced the first data on population parameters for sicklefin lemon shark Negaprion acutidens at the granitic Seychelles Islands, adding to a limited catalogue of species information. Juveniles at a site in the Curieuse Marine National Park were tagged... -
Revisiting the relevance of economic theory to hotel revenue management education and practice in the era of Big Data
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Natalie Haynes --- Sheffield Business School, United Kingdom David Egan --- Sheffield Business School, United KingdomThis paper explores the role of economics in hospitality education and industry practice, with a particular focus on revenue management, and puts forward an argument for a return to the inclusion of economic theory in UK hospitality education, not seen... -
Age and growth of narrow-barred Spanish mackerel Scomberomorus commerson in the coastal waters of southern Mozambique and KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: B Lee --- Oceanographic Research Institute (ORI), South Africa BQ Mann --- Oceanographic Research Institute (ORI), South AfricaThe narrow-barred Spanish mackerel Scomberomorus commerson is one of the most important linefish species caught in KwaZulu-Natal and southern Mozambique waters, forming the basis of important commercial, artisanal and recreational fisheries. A total of 439 S. commerson were sampled along... -
Reflection on the first five years of South Africa’s Acoustic Tracking Array Platform (ATAP): status, challenges and opportunities
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PD Cowley --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa RH Bennett --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa A-R Childs --- Department of Ichthyology and Fisheries Science, South Africa TS Murray --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaThe Acoustic Tracking Array Platform (ATAP) is a marine science programme that monitors the movements and migrations of inshore marine animals along the South African coastline. Acoustically tagged animals are monitored by an expanded network of approximately 100 automated data-logging... -
Classification of marine bioregions on the east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T-C Livingstone --- Ezemvelo KZN Wildlife, South Africa JM Harris --- Ezemvelo KZN Wildlife, South Africa AT Lombard --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa AJ Smit --- Department of Biodiversity and Conservation Biology, South Africa DS Schoeman --- School of Science and Engineering, AustraliaMarine bioregional planning requires a meaningful classification and spatial delineation of the ocean environment using biological and physical characteristics. The relative inaccessibility of much of the ocean and the paucity of directly measured data spanning entire planning regions mean that... -
Impacts of alien ‘ecosystem engineers’ overwhelm interannual and seasonal shifts in rocky-shore community composition on Marcus Island, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Sadchatheeswaran --- Department of Biological Sciences and Marine Research Institute, South Africa GM Branch --- Department of Biological Sciences and Marine Research Institute, South Africa CL Moloney --- Department of Biological Sciences and Marine Research Institute, South Africa TB Robinson --- Department of Botany and Zoology, South AfricaThe South African coastline has been invaded by numerous alien species. Rare pre-invasion (1980) and post-invasion datasets (2001 and 2012) exist for Marcus Island, a small land-tied island in Saldanha Bay, South Africa. These snapshot datasets of the island’s intertidal... -
Assessment of the likely sensitivity to climate change for the key marine species in the southern Benguela system
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Ortega-Cisneros --- Department of Ichthyology and Fisheries Science, South Africa S Yokwana --- Department of Ichthyology and Fisheries Science, South Africa W Sauer --- Department of Ichthyology and Fisheries Science, South Africa K Cochrane --- Department of Ichthyology and Fisheries Science, South Africa A Cockcroft --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa NC James --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa WM Potts --- Department of Ichthyology and Fisheries Science, South Africa L Singh --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa M Smale --- Department of Zoology and Coastal and Marine Research, South Africa A Wood --- Gleneagles Environmental Consulting, South Africa G Pecl --- Institute for Marine and Antarctic Studies, AustraliaClimate change is altering many environmental parameters of coastal waters and open oceans, leading to substantial present-day and projected changes in the distribution, abundance and phenology of marine species. Attempts to assess how each species might respond to climate change... -
Data-moderate assessments of Cape monkfish Lophius vomerinus and west coast sole Austroglossus microlepis in Namibian waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JN Kathena --- National Marine Information and Research Centre (NatMIRC), Ministry of Fisheries and Marine Resources (MFMR), Namibia A Kokkalis --- National Institute of Aquatic Resources (DTU Aqua), Denmark MW Pedersen --- National Institute of Aquatic Resources (DTU Aqua), Denmark JE Beyer --- National Institute of Aquatic Resources (DTU Aqua), Denmark UH Thygesen --- National Institute of Aquatic Resources (DTU Aqua), DenmarkThere is global interest in providing scientific advice on optimal harvesting of all commercially exploited fish stocks. Nevertheless, many commercially important stocks lack analytical assessments. Therefore, we evaluate a data-moderate stock assessment method: the stochastic surplus production model in continuous... -
A model for addressing parallelism of systems in the management of data: The Namibian case
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Irja Shaanika --- Department of Information Technology, South Africa Monica Maletzky --- Department of Information Technology, South Africa Tiko Iyamu --- Department of Information Technology, South AfricaAs in many countries, the volume of data that has been generated by the Namibian government administrations and agencies in recent years has increased drastically in rapidity. Consequently, this has led to difficulties and challenges in the control and management... -
Development of energy benchmarking protocol for commercial banks, Lagos state, Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: T. O. Akinbulire --- Department of Electrical/Electronic Engineering, Nigeria P. O. Oluseyi --- Department of Electrical/Electronic Engineering, Nigeria O. M. Babatunde --- Department of Electrical/Electronic Engineering, Nigeria A. E. Ayegbajeje --- Daystar Power Solutions, NigeriaEnergy consumption is a central factor taken into consideration as far as management decisions are concerned in any firm and the same goes for the banking industry. More importantly is the extent to which firms consume energy efficiently. In the... -
The autumn occurrence and spatial distribution of cetaceans in the waters of Mauritania during a geophysical survey in 2012
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Russell --- , United Kingdom A Sánchez-Cabanes --- , United Kingdom M Nimak-Wood --- , United KingdomThis study aimed to identify the occurrence and spatial distribution of cetaceans in Mauritanian waters (eastern Atlantic). A geophysical survey was conducted over 92 days between September and December 2012. Over 967 km was surveyed, with 1 017 h of... -
Extreme significant wave height climate in the Gulf of Guinea
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AA Osinowo --- , Nigeria EC Okogbue --- , Nigeria EO Eresanya --- , Nigeria OS Akande --- , NigeriaThis article investigates spatio-temporal trends for different return periods of extreme significant wave height (SWH) in the Gulf of Guinea (GG), northeastern tropical Atlantic Ocean, based on a 37-year (1980–2016) wave hindcast. High-resolution reanalysis windfield datasets were used to force... -
Age, growth and natural mortality of blue jack mackerel Trachurus picturatus (Carangidae) from the Canary Islands, Spain (NW Africa)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Jurado-Ruzafa --- , Spain MTG Santamaría --- , SpainStatus assessment of exploited fish populations is a general requirement to ensure sustainability of fisheries in both global and local contexts. The blue jack mackerel Trachurus picturatus (Bowdich, 1825) remains unassessed in a data-limited fishery in the eastern central Atlantic,... -
Genetic diversity of endangered sandalwood (Osyris lanceolata) populations in Kenya using ISSR molecular markers
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: KP Andiego --- Department of Forestry and Wood Science, Kenya OG Dangasuk --- Department of Biological Sciences, Kenya DW Odee --- Biotechnology Laboratory, Kenya FS Omondi --- Biotechnology Laboratory, Kenya DF Otieno --- Department of Biological Sciences, Kenya BK Balozi --- Department of Forestry and Wood Science, KenyaOsyris lanceolata is an evergreen, drought tolerant tropical African tree species belonging to the family Santalaceae. It is endangered, owing to overexploitation for its essential oil used in cosmetics and pharmaceutical industries. The study aimed at determining: (1) the genetic... -
Taxonomic challenges associated with identification guides of benthic macroinvertebrates for biomonitoring freshwater bodies in East Africa: A review
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: H Ochieng --- Department of Biology, Uganda J Okot-Okumu --- Department of Environmental Management, Uganda R Odong --- Department of Zoology, Entomology and Fisheries Sciences, UgandaAlthough biomonitoring of freshwater bodies is important in East Africa as a result of increasing environmental threats, the identification guides of benthic macroinvertebrates used to generate data for developing metrics for this purpose are mainly not regionally specific. This casts... -
Comparative depth estimation of iron-ore deposit using the Data-Coordinate Interpolation Technique for airborne and ground magnetic survey variation
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: James Adeyemo Adegoke --- Department of Physics, Nigeria Gideon Oluyinka Layade --- Department of Physics, NigeriaA newly developed quantitative method, Data-Coordinate Interpolation Technique (DCIT) was used by matching the secondary and primary data to correct the variation that exists between airborne and ground magnetic depth-to-basement. The aeromagnetic data within latitude (8.000N, 8.500N) and longitude (4.000E,... -
Smooth fan lobster Ibacus novemdentatus in the southwestern Indian Ocean: an overlooked fisheries resource?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JC Groeneveld --- Oceanographic Research Institute (ORI), South Africa LD Zacarias --- Instituto Nacional de Investigação Pesqueira (IIP), Mozambique SP Singh --- Oceanographic Research Institute (ORI), South AfricaBottom-trawl data collected by the RV Dr Fridtjof Nansen off Mozambique (in 1990, 2007 and 2018) and off eastern South Africa (in 2018) were analysed to investigate the distribution, abundance and size composition of the smooth fan lobster Ibacus novemdentatus... -
Localised intermittent upwelling intensity has increased along South Africa’s south coast due to El Niño–Southern Oscillation phase state
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MI Duncan --- Department of Ichthyology and Fisheries Science, South Africa NC James --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa AE Bates --- Department of Ocean Sciences, Canada WS Goschen --- Institute for Coastal and Marine Research, Ocean Sciences Campus, South Africa WM Potts --- Department of Ichthyology and Fisheries Science, South AfricaThe El Niño–Southern Oscillation (ENSO) phase state is reported to drive interannual variability in sea temperatures along South Africa’s south coast through its influence on wind-induced upwelling processes. Whether ENSO drives the intensity of localised, abrupt, intermittent upwelling is less... -
A DNA barcoding study of seven cichlid species from southern Africa reveals their phylogenetic relationships
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FH van der Bank --- African Centre for DNA Barcoding, South AfricaThis study of three Namibian fish species (two endemic Thoracochromis and Tilapia guinasana) and Pseudocrenilabrus philander reveals their monophyly. These species (and Sandelia capensis) have never been DNA barcoded and their phylogenetic relationships with two Tilapia species is shown. Average... -
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... -
Spatial modelling of cumulative human pressure in the tropical coastscape of Zanzibar, Tanzania
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ZA Khamis --- Department of Geography and Geology, Finland R Kalliola --- Department of Geography and Geology, Finland N Käyhkö --- Department of Geography and Geology, FinlandCoastal landscapes and seascapes (‘coastscapes’) are under immense anthropogenic pressures emanating from multiple human activities. We applied spatial modelling to characterise the cumulative pressures in the coastscape of Zanzibar’s main island Unguja (hereafter Zanzibar), in the western Indian Ocean. We... -
Roseate Terns Sterna dougallii on the southeast coast of South Africa: information on moult and migratory status
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Anthony J Tree --- Port Alfred, South Africa Maëlle Connan --- Department of Zoology, Marine Apex Predator Research Unit, Institute for Coastal and Marine Research, South Africa Philip A Whittington --- Department of Zoology, South AfricaDetermining the migratory status of seabird populations is crucial for addressing conservation concerns. The Roseate Tern Sterna dougallii is considered endangered in South Africa in view of its small breeding population and the threats to eggs and chicks. Earlier works... -
Stock prices and dividends: A South African perspective
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Ailie Charteris --- Finance and Tax, South Africa Kudakwashe J. Chipunza --- Postgraduate student, Graduate School of Economic and Management Sciences, South AfricaThe present value model (PVM) is considered a cornerstone of financial theory and practice, yet the limited empirical tests thereof have produced varying results depending on the method used. In addition, these tests have focused principally on developed countries, with... -
Use of openly available occurrence data to generate biodiversity maps within the South African EEZ
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Yemane --- Department of Environment, Forestry and Fisheries (DEFF), South Africa SP Kirkman --- Department of Environment, Forestry and Fisheries (DEFF), South Africa T Samaai --- Department of Environment, Forestry and Fisheries (DEFF), South AfricaBiodiversity maps are an important component of ecosystem-based management and conservation. In the past, biodiversity maps were largely generated using patchy occurrence data from a range of data sources. Currently, substantial species occurrence data are readily available for large parts... -
BirdLasser: The influence of a mobile app on a citizen science project
Item type: Journal Article • Journal: African Zoology • Authors: Alan Tristram Kenneth Lee --- , South Africa Henk Nel --- , South AfricaIn recent decades, people across the world have adopted ‘smart-phones’ and their technology. Software applications on these devices have become diverse in their functionality and easy to use. Citizen science projects that try to mobilise data collection from people from... -
The Africa we want and the Africa we see: How scholarship from Africa stands to enrich global scholarship
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Helena Barnard --- , South AfricaThis paper grew out of a keynote I delivered at the Academy of International Business Africa chapter meeting in Ghana, 2019, and was further honed in the review process. I share how emotionally challenging I sometimes find it to be... -
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... -
Summarising biometrics from the SAFRING database for southern African birds
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sanjo Rose --- , South Africa Robert L Thomson --- , South Africa Hans-Dieter Oschadleus --- , South Africa Alan TK Lee --- , South AfricaBiometrics form a key characteristic of a species. Here, we provide a summary of biometrics held by the South African Bird Ringing Scheme (SAFRING), which was initiated in 1948, including measures of mass and lengths of the tarsus, head, culmen,... -
Variation in colony sizes of weavers from a citizen science project
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Hans-Dieter Oschadleus --- , South AfricaThe project PHOWN (PHOtos of Weaver Nests) is a citizen science project that collects breeding distributions and colony sizes of weaverbirds (Ploceidae) globally. PHOWN began in mid-2010 and has collected nearly 30 000 records in 9.5 years. This paper provides... -
Zoogeography of marine Bryozoa around South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MK Boonzaaier-Davids --- , South Africa WK Florence --- , South Africa MJ Gibbons --- , South AfricaThe zoogeography of marine Bryozoa around South Africa was investigated using published distribution records, museum catalogues, and an examination of previously unworked bryozoan material in (mostly) museum collections. Although a total of 276 valid species are recognised, it was not... -
Movements and growth rates of the broadnose sevengill shark Notorynchus cepedianus in southern Africa: results from a long-term cooperative tagging programme
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TM Engelbrecht --- , South Africa AA Kock --- , South Africa MJ O’Riain --- , South Africa BQ Mann --- , South Africa SW Dunlop --- , South Africa A Barnett --- , AustraliaTop predators are important components of healthy ecosystems but are at risk of overexploitation due to insufficient data on life-history characteristics and population dynamics to guide management. We investigated the movements and growth rates of the broadnose sevengill shark Notorynchus... -
Are South African linefishes recovering and what makes them prone to overexploitation?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Haupt --- , South Africa H Winker --- , South Africa D Parker --- , South Africa SE Kerwath --- , South AfricaManaging coastal fisheries is challenging as the status of many fish stocks caught in these fisheries remains unknown. In the South African linefishery, regular comprehensive assessments of the status of most linefish stocks are unattainable owing to a scarcity of... -
Discovering the research focus of higher academic institutions
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Olufunke Oladipupo --- , Nigeria Ibukun Afolabi --- , Nigeria Stephen Adubi --- , Nigeria Olaperi Sowunmi --- , NigeriaThe research focus of an institution indicates the academic strength of the institution. This academic strength goes a long way to determine the quality of academic product expected from such an institution. To this effect, this study aims at analyzing... -
Characterising the seasonal cycle of wind forcing, surface circulation and temperature around the sub-Antarctic Prince Edward Islands
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Toolsee --- , South Africa T Lamont --- , South Africa M Rouault --- , South Africa I Ansorge --- , South AfricaLocated between the sub-Antarctic Front and the Antarctic Polar Front, the Prince Edward Islands (PEIs) provide an essential breeding ground for top predators and are an ideal location to investigate disturbances linked to climate change. This study provides the first... -
Three-dimensional modelling of the circulation in False Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: F Coleman --- , South Africa GPJ Diedericks --- , South Africa AK Theron --- , South Africa J Lencart e Silva --- , United KingdomFalse Bay is the largest coastal embayment along South Africa’s coastline. Despite notable contributions of various historical observational studies on the circulation within False Bay and the associated physical processes driving these flows, there remains significant uncertainty largely because the... -
Estimating above-ground biomass of individual trees with terrestrial laser scanner and 3D quantitative structure modelling
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tasiyiwa P Muumbe --- , Zimbabwe Paradzayi Tagwireyi --- , Zimbabwe Pride Mafuratidze --- , Zimbabwe Yousif Hussin --- , The Netherlands Louise van Leeuwen --- , The NetherlandsThis study explored the feasibility of using the terrestrial laser scanner (TLS) and quantitative structure modelling (QSM) to estimate the above-ground biomass (AGB) of individual trees in the tropical rainforest using data from the Ayer Hitam Forest Reserve, Malaysia. We... -
Rethinking open government as innovation for inclusive development: Open access, data and ICT in South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Paul Plantinga --- , South Africa Rachel Adams --- , South AfricaOpen government has come to be closely associated with innovation for inclusive development (IID). These two areas of practice and research have converged around similar mechanisms aimed at achieving inclusive development outcomes including: open interaction between government, technologists and end-users... -
BMI-based figure rating scale (FRS) as an adjunctive aid in nutritional screening and assessment in a resource-limited setting
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: E van Tonder --- , South Africa N Dihawa --- , South AfricaObjectives: Many existing malnutrition screening and diagnostic tools require body mass index (BMI) and quantification of weight change to detect malnutrition or risk thereof. This is often a challenge in South African public hospitals due to missing data, including patient... -
Criminal psychology trend prediction based on deep learning algorithm and three-dimensional convolutional neural network
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yan Fan --- , ChinaIn the modern era, the empirical analysis of countermeasures against crime has developed rapidly from the perspective of crime causes. The concept of punishment based on preventionism has been vigorously developed. We aimed to apply the principle of convolutional neural... -
Are there long-term temporal trends of size composition and the length– weight relationship? Results for chokka squid Loligo reynaudii during the peak spawning season off the south coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MR Lipiński --- , South Africa MA Mmethi --- , South Africa D Yemane --- , South Africa J Githaiga-Mwicigi --- , South Africa WHH Sauer --- , South AfricaTemporal trends in the size composition (length frequency) and length–weight (L–W) relationship of chokka squid Loligo reynaudii on the south coast of South Africa were assessed over periods spanning 22 years: length frequencies from 1996 to 2017 (with 15 years... -
Microplastics pollution in the sediments of creeks and estuaries of Kenya, western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JO Kerubo --- , Kenya AWN Muthumbi --- , Kenya JM Onyari --- , Kenya D Robertson-Andersson --- , South Africa E Kimani --- , KenyaMicroplastic pollution has been recognised as a global threat in marine environments and a danger to prey, predators and humans. Yet, there have been few studies in the western Indian Ocean, specifically along the Kenyan coast, which makes it difficult... -
Public investment and economic growth in ECOWAS countries: Does governance Matter?
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mamadou Bah --- , Côte d’Ivoire Koffi Kpognon --- , CameroonThe ECOWAS countries have been facing weak economic performance in recent decades. While the role of investment as an engine of growth is undeniable, the effect of public investment remains less clear. The role of the quality of governance in... -
The contribution of participatory engagement strategies to reliable data gathering and inclusive policies in developing countries: Municipal solid waste management data in the Greater Accra Metropolitan Area of Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kwaku Oduro-Appiah --- , Cape Coast, Ghana Anne Scheinberg --- , the Netherlands Abraham Afful --- , Cape Coast, Ghana Nanne de Vries --- , the NetherlandsThe absence of participatory engagement strategies in the collection of solid waste management data in most developing countries affects reliability and deprives professional staff and local authorities of any clear basis for system modernization. This article addresses these challenges in... -
Stock assessment of Nile tilapia Oreochromis niloticus (Linnaeus 1758) in Lake Tana, Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Degsera --- , Ethiopia M Minwyelet --- , Ethiopia TG Yosef --- , EthiopiaNile tilapia Oreochromis niloticus is a commercially important fish species in the Lake Tana fishery and contributes to 65% of the total annual catch. This study estimated the maximum sustainable yield (MSY) and effort at maximum sustainable yield (fMSY) for... -
The diet of the Olive Bee-eater, Merops superciliosus, in the Central Highlands of Madagascar
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Balsama Rajemison --- , Madagascar Hesham T Goodman --- , Madagascar Steven M Goodman --- , MadagascarRegurgitated pellets from the Olive Bee-eater, Merops superciliosus, were collected below a hunting perch in Antananarivo, Madagascar, and used to examine this species’ food habits. The diet of this species was largely composed of bees (Apidae, genus Apis) and the... -
Diabetes in the Western Cape: an eight-year profile
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: N Sahadew --- , South Africa S Pillay --- , South Africa VS Singaram --- , South Africa -
Movement patterns and catch trends of the diamond ray Gymnura natalensis (Dasyatidae) in South African waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Daly --- , South Africa GL Jordaan --- , South Africa D Parker --- , South Africa G Cliff --- , South Africa N Nkabi --- , South Africa R Kyle --- , South Africa ST Fennessy --- , South Africa BQ Mann --- , South AfricaThe diamond ray Gymnura natalensis is endemic to southern Africa where its preference for shallow coastal habitats makes it vulnerable to recreational shore-based angling. Although it makes up approximately 1% of the shore-based tag numbers, little is known about its... -
The financial and social efficiency of rural cooperatives in South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Collin L. Yobe --- , South Africa Stuart R. D. Ferrer --- , South Africa Maxwell Mudhara --- , South AfricaIdentifying the type of organization for achieving social efficiency for agricultural development remains a challenge. In this study, the relationship between the financial and social efficiency of South African agricultural cooperatives was examined. Data, comprising 1788 agricultural cooperatives, were obtained... -
Development and validation of an operational multi-layered model for estimation of soil moisture at point-scale in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L Myeni --- , South Africa ME Moeletsi --- , South Africa AD Clulow --- , South AfricaData discontinuity is the major challenge that hinders the integrity of datasets from the sparse soil moisture monitoring networks in developing countries. In this study, a simplified, multi-layered soil water balance model to estimate daily soil moisture at point-scale from... -
The effects of cluster collaboration and the utilization of big data on business performance: A research based on the expansion of open innovation and social capital
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Joon-ho Kim --- , Republic of Korea Yae-ri Kim --- , Republic of Korea Seung-hye Jung --- , Republic of Korea Hyun-ju Choi --- , Republic of Korea June-hyuk Kwon --- , Republic of KoreaThis study examines the influence of firm cluster collaboration and the utilization of big data on the expansion of open innovation. We also investigate the effect of open innovation on business performance and test the moderating effect of social capital... -
The impact of algorithmic trading on market quality: Evidence from the Johannesburg Stock Exchange
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Aurélie Courdent --- , David McClelland --- ,High-frequency trading (HFT) is a trading method that relies on sophisticated algorithms to analyse markets and execute large numbers of orders within milliseconds. In the last two decades, this new technology has gained traction globally and now accounts for the... -
Metabarcoding of zooplankton confirms southwards dispersal of decapod crustacean species in the western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Govender --- Oceanographic Research Institute (ORI), South Africa JC Groeneveld --- Oceanographic Research Institute (ORI), South Africa SP Singh --- Oceanographic Research Institute (ORI), South Africa S Willows-Munro --- University of KwaZulu-Natal, South AfricaMetabarcoding to determine marine zooplankton species composition is a fast-developing method, yet to be fully standardised. DNA barcode reference libraries that link species to barcode sequences remain incomplete, taxonomically imprecise, and biased towards well-studied regions. We used metabarcoding to determine... -
Cinereous Vulture Aegypius monachus movements between Europe and Africa show a pattern across the Strait of Gibraltar
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Juan Ramírez --- Malaga University, Spain Javier Elorriaga --- , Spain Andrés de la Cruz --- Spanish Institute of Oceanography (IEO), Spanish National Research Council (CSIC), SpainThe biology of the Cinereous Vulture Aegypius monachus is well known across its breeding range, and the species’ dispersal and movements throughout Europe are widely recorded. However, the ecology of this vulture south of the Mediterranean Sea has been overlooked,... -
A guiding framework for enhancing database security in state-owned universities in Zimbabwe
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Zorodzai Magura --- Midlands State University, Zimbabwe Tinashe Gwendolyn Zhou --- Midlands State University, Zimbabwe Samuel Musungwini --- Midlands State University, ZimbabweThis study sought to design a framework to enhance database security in state-owned universities. Database security has been a cause for concern for state-owned universities following many reported cases of state-owned universities that were repeatedly hacked locally and the fact... -
A Big Data strategy to reinforce self-sustainability for pharmaceutical companies in the digital transformation era: A case study of Egyptian pharmaceutical companies
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mahmoud Elsayed Hassanin --- Ahram Canadian University, Egypt Mohamed Ahmed Hamada --- International IT University, KazakhstanThe Big Data-driven economy has emerged, and data is known as the new petroleum of the current century. Big Data (BD) analytics can play an essential role in building a self-sustainable competitive advantage for the pharmaceutical industry by feeding pharmaceutical... -
Factors affecting the innovation ecosystem in public universities in Ethiopia
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abebaw Abibo --- University of Gondar, Ethiopia Mammo Muchie --- Adjunct Professor in UOG, Ethiopia Zerayehu Sime --- Addis Abeba University, Ethiopia Wondemhunegn Ezezew --- University of Gondar, EthiopiaUniversities are now at the centre of the knowledge economy, and they do innovate, but Ethiopian universities have not done much of it. The overall goal of this paper is thus to investigate the innovative behaviour of Ethiopian public universities,... -
Is higher risk sex common among male or female youths?
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Yifru Berhan --- , Ethiopia Asres Berhan --- , EthiopiaThere are several studies that showed the high prevalence of high-risk sexual behaviors among youths, but little is known how significant the proportion of higher risk sex is when the male and female youths are compared. A meta-analysis was done... -
Evaluation of the quality constructs of a tax management system based on DeLone and McLean IS success model
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Godwin Banafo Akrong --- School of Management and Economics (UESTC), University of Electronic Science and Technology, People’s Republic of China Yunfei Shao --- School of Management and Economics (UESTC), University of Electronic Science and Technology, People’s Republic of China Ebenezer Owusu --- University of Ghana, GhanaWe presented a novel method to analyze the impact tax management systems have on users (individual impact) in this study. The interrelationship among the three information system (IS) quality constructs is examined. The study is based on the evaluation undertaken... -
Wind- and eddy-driven upwelling over submarine canyons inshore of the northern Agulhas Current
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Rautenbach --- Nelson Mandela University, South Africa J Hermes --- , South Africa I Halo --- , South Africa T Morris --- , South Africa J Veitch --- , South AfricaThe iSimangaliso Wetland Park, located along the coastline of northern KwaZulu-Natal, hosts South Africa’s only subtropical coral reef system. Episodic upwelling events are observed inshore and at the heads of Diepgat, Leadsman and Leven canyons within the iSimangaliso Wetland Park... -
Predicting soil carbon in granitic soils using Fourier-transform mid-infrared (FT-MIR) spectroscopy: the value of database disaggregation
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Kelebohile Rose Seboko --- University of the Free State, South Africa Johan van Tol --- University of the Free State, South Africa Elmarie Kotze --- University of the Free State, South AfricaSoil carbon (C) is an important component in quality assessments and efficient models are required to estimate C rapidly. Accurate C assessments are valuable in monitoring land-use changes. Fourier-transform mid-infrared (FT-MIR) spectroscopy has proved to be a powerful tool for... -
Status of gender equality in ocean research, conservation and management institutions and organisations in Kenya
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RA Ojwala --- WMU–Sasakawa Global Ocean Institute, World Maritime University, SwedenGender equality is key to achieving the objectives of the United Nation’s Decade of Ocean Science for Sustainable Development. In patriarchal societies, men’s dominance has long overshadowed women’s participation in science-related fields, including ocean science. The lack of gender-disaggregated data... -
Status and density of the threatened Kori Bustard Ardeotis kori in a woodland savanna
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kathan Bandyopadhyay --- University of Wyoming, United States Bogdan Cristescu --- , Namibia Jeffrey L Beck --- University of Wyoming, United States John L Koprowski --- University of Wyoming, United States Laurie Marker --- , NamibiaMany grassland habitats have disappeared or undergone substantial change worldwide and many obligatory grassland animal species have populations that are at risk of extinction. The Kori Bustard Ardeotis kori is the largest flying bird native to Africa and an open... -
District analysis of poverty dynamics in rural South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Manana Mamabolo --- University of Pretoria, South Africa Petronella Chaminuka --- Agricultural Research Council, South Africa Charles Machethe --- University of Pretoria, South AfricaPersistent poverty is a major developmental challenge for South Africa and has multifaceted dimensions. This paper profiled and investigated poverty transitions among rural households in 22 district municipalities in South Africa. Foster-Greer-Thorbecke indices were applied to panel data from the... -
Using generalised additive models to visualise the annual cycle of primary feather moult patterns
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Rebecca R Irons --- University of Cape Town, South Africa Alan TK Lee --- University of Cape Town, South Africa Robert L Thomson --- University of Cape Town, South Africa Birgit Erni --- University of Cape Town, South AfricaMoult is a vital but energy-demanding event in a bird's phenological cycle. Primary moult is the shedding of old feathers and the regeneration of new flight feathers to maintain efficient functioning of these critical structures. Life history events, such as... -
The effect of e-government development indices (EGDI) on corruption perception index in sub-Sahara Africa: A panel data analysis
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Chima Paul --- University of Abuja, Nigeria Samuel Olorunfemi Adams --- University of Abuja, NigeriaThe study aims to examine the impact of e-government development indices on the corruption perception index (CPI) using cross-sectional data covering the period 2012–2020. To achieve the objective of the study, the E-Government Development Index (EGDI), which comprises the Online... -
Biology and ecology of the African blackspot shark Carcharhinus humani on the east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Cliff --- KwaZulu-Natal Sharks Board, South Africa NG Booyens --- School of Life Sciences, University of KwaZulu-Natal, South Africa R Daly --- Oceanographic Research Institute (ORI), South Africa GL Jordaan --- Oceanographic Research Institute (ORI), South Africa N Nkabi --- KwaZulu-Natal Sharks Board, South Africa D Parker --- Commonwealth Scientific and Industrial Research Organization, Australia BQ Mann --- Oceanographic Research Institute (ORI), South AfricaThe African blackspot shark Carcharhinus humani (until now commonly known as Human’s whaler shark) is a small-sized requiem shark (family Carcharhinidae) found in tropical coastal waters of the western Indian Ocean as far south as Port St Johns on the... -
Non-nutritive sweeteners: consumer awareness and inclusion in food and beverage products in South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Shakun Naicker --- Durban University of Technology, South Africa Ashika Naicker --- Durban University of Technology, South Africa Evonne Singh --- Durban University of Technology, South Africa -
The impact of sustainable investment on firm performance in South Africa
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Vongani V. Masongweni --- University of Johannesburg, South Africa Beatrice D. Simo-Kengne --- University of Johannesburg, South AfricaPurpose: This study investigates the influence of environmental, social, and governance (ESG) scores on the financial performance of firms in South Africa across industries. -
Factors that impact the implementation of blockchain in logistics in the United Arab Emirates
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mohamad Bleik --- Independent researcher, SwitzerlandThis study investigates the factors influencing the implementation of blockchain in logistics in the United Arab Emirates (UAE), including security, privacy, end-user benefits, quality control, technology infrastructure, and lack of general awareness. A mixed-methods approach was used, with data collected... -
A conservation assessment of birds in the Karoo region of South Africa: densities, populations, ranges, and trend estimates
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan TK Lee --- University of Cape Town, South Africa Dale R Wright --- RMIT University, AustraliaThe Karoo region of South Africa, which includes the Succulent and Nama Karoo biomes, supports a unique avian fauna, with ten bird species occurring exclusively in this arid-zone region and many others exhibiting a strong preference for this habitat. To... -
Artificial intelligence-powered decision support system for operational decision-making in the ICT department of a selected African university
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Vusumzi Funda --- University of Fort Hare, South Africa Errol Francke --- Cape Peninsula University of Technology, South AfricaThis paper aims to explore the effect of an artificial intelligence-enabled decision support system (AIDSS) on decision-making processes within a university setting, focusing on the ICT department of a selected South African university. The research objectives revolve around the effectiveness... -
Insights into the phylogenetic position of genus Synodontella (Monopisthocotylea) among some other Dactylogyridea gill parasites of African catfishes and the importance of haptoral elements
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Jonathan A Mbondo --- Institute of Agricultural Research for Development (IRAD), Mbalmayo Agricultural Research Centre, Cameroon Dieu ne dort Bahanak --- Institute of Agricultural Research for Development (IRAD), Minko Multipurpose Research Station, Cameroon Etienne D Bassock Bayiha --- University of Yaoundé I, Cameroon Charles F Bilong Bilong --- University of Yaoundé I, CameroonThis work provides new molecular data on seven species representing three genera (Protoancylodiscoides, Schilbetrema and Synodontella) in the order Dactylogyridea. The results help to explain the origin of Synodontella spp. and to elucidate the phylogenetic position of Synodontella in relation... -
Genetic consequences in the southern African endemic seabream Polysteganus undulosus (Sparidae) after eight decades of overfishing
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CJ Oosthuizen --- University of Pretoria, South Africa BQ Mann --- Oceanographic Research Institute (ORI), South Africa P Bloomer --- University of Pretoria, South Africa TB Hoareau --- University of Pretoria, South AfricaThe Critically Endangered seventy-four seabream Polysteganus undulosus, a slow-growing sparid that forms spawning aggregations off South Africa, faced heavy exploitation from 1910 until a fishery moratorium was put in place in 1998. Utilising temporal samples from 1962/1963 (mid-collapse) and 2005/2006... -
Data utilisation among employees in SMEs in Destination Limfjorden, Denmark
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Henrik S. Pahus --- Dania Academy, Denmark Lars Falk --- International Sales and Marketing, University College of Northern Denmark, DenmarkThis article explores the efforts of Destination Limfjorden in Denmark to enhance employees’ competencies and skills in small and medium-sized tourism enterprises (SMEs) through the strategic use of data. The study employs a mixed-method approach, integrating digital questionnaires and semi-structured... -
Firm size and enterprise productivity in Nigeria: Evidence from firm-level data
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ambrose Nnaemeka Omeje --- University of Nigeria, Nigeria Augustine Jideofor Mba --- University of Nigeria, Nigeria Ravinder Rena --- Durban University of Technology, Republic of South AfricaAnchored on the economies of scale of production theory, this study utilized Nigeria’s firm-level enterprise survey data of the World Bank collected through stratified random sampling of 2 676 firms and face-to-face interviews with the application of the multinomial logit... -
The Africa Bird Data packages: African citizen science bird data in R
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Francisco Cervantes --- University of Cape Town, South Africa Alan TK Lee --- University of Cape Town, South Africa Dominic AW Henry --- University of Cape Town, South Africa Michael Brooks --- University of Cape Town, South Africa Vernon Visser --- University of Cape Town, South Africa Ané Cloete --- University of Cape Town, South Africa Nancy Job --- South African National Biodiversity Institute, South Africa Res Altwegg --- University of Cape Town, South AfricaThe African Bird Atlas Project (ABAP) and the Coordinated Waterbird Counts (CWAC) are the main citizen science bird monitoring programmes in southern Africa. ABAP data are collected by volunteers that compile bird lists over a grid of geographic areas known... -
Corporate social responsibility and firm performance: Evidence from Korea
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Wonhee You --- Sungkyunkwan University, Korea Jens Müller-Merbach --- , Germany Doojin Ryu --- Sungkyunkwan University, KoreaThis study explores the relationship between corporate social responsibility (CSR) and corporate financial performance (CFP) in listed Korean companies over ten years. The results show a significant positive effect of CSR on CFP in the manufacturing sector, but no notable... -
On uniqueness theorems for the inverse q-Sturm–Liouville problems
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: F.A. Gawish --- Benha University, Egypt Z.S. Mansour --- Cairo University, EgyptWe establish two theorems that illustrate the uniqueness of inverse q-Sturm-Liouville problems based on a specified set of spectral data. The first uniqueness theorem employs the method of transformation operators to provide a q-analog of the Levinson-Marchenko uniqueness theorem. The... -
Trophic interactions of two sympatric small pelagic fishes off the southern coast of Angola
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DPA Quiatuhanga --- University of Namibe, Angola P Morais --- , United States MA Teodósio --- Universidade do Algarve, PortugalNumerous small pelagic fish species are of great economic importance and link the lower and upper levels of the marine food web. The round sardinella Sardinella aurita and flat sardinella S. maderensis coexist along their distribution range in the southeastern... -
Enablers to the adoption of sustainable practices in automotive manufacturing: interpretive structural modelling driven by multi-company perspective
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Pallawi Baldeo Sangode --- N. L. Dalmia Institute of Management Studies and Research, IndiaIn mounting global environmental concerns, firms orient their operations, from supplier selection to product distribution to sustainable models. The pressure of environmental sustainability is more felt by heavy industries that have a high dependence on natural resources for energy generation,... -
Distribution and status of reptile species in south-eastern Zimbabwe
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Kurt M van Wyk --- University of the Western Cape, South Africa Bryan Maritz --- University of the Western Cape, South Africa Bruce W Clegg --- Malilangwe Trust, Malilangwe Wildlife Reserve, ZimbabweWhile the loss of biodiversity in response to anthropogenic drivers is well documented, reptiles are rarely prioritised in global conservation efforts. Although more than 20% of all reptile species are currently listed as threatened, and a growing body of evidence... -
Sediment dynamics in the Roman Rock area of False Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Terhorst --- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia M de Vos --- University of Connecticut, United States C Rautenbach --- Waikato Regional Council, New ZealandThis study investigated sediment dynamics in the Roman Rock area of False Bay, South Africa, by integrating sediment grain size data with hydrodynamic and wave modelling. We examined two significant events: a long-period southwesterly swell in 2008, and a prolonged... -
GeoHostel: Location-based recommendation of hostels in the context of higher education through geospatial technology
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nana Yaw Asabere --- Accra Technical University, Ghana Gare Lawson --- Raycom Technologies, Ghana Bernice Quartey-Papafio --- Ghana Police Service, Ghana Marcellinus Kuuboore --- University of Professional Studies, Ghana Nana Yaw Duodu --- Accra Technical University, GhanaAn efficient data management system is essential in the field of student housing to guarantee the availability of high-quality data that can make it easier to find appropriate hostels. Although recommender systems concerning hotels and tourism points of interest (POI)... -
Assessing technological capability of innovative stress detection tools in forestry for the improvement of commercial production: a South African perspective
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Regardt Ferreira --- School of Natural Resource Management, South Africa Kabir Peerbhay --- Sappi Shaw Research Centre, South Africa Josua Louw --- School of Natural Resource Management, South Africa Ilaria Germishuizen --- Institute for Commercial Forestry Research, South Africa Naeem Agjee --- Sappi Shaw Research Centre, South Africa Mikka Parag --- University of KwaZulu-Natal, South AfricaThere is a constant need for efficient screening methods of plant physiological stress in nursery and plantation forestry systems. Most stress is assessed visually, which can be subjective and requires manpower that is time-consuming and expensive. However, as technology has... -
Comparing the activity of exploited and unexploited populations of a reef-dwelling seabream, Chrysoblephus laticeps, during an extreme upwelling and cold-spell event
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NT Mlotshwa --- Rhodes University, South Africa MR Skeeles --- Rhodes University, South Africa MI Duncan --- Rhodes University, South Africa C Muller --- Rhodes University, South Africa WM Potts --- Rhodes University, South Africa AC Winkler --- Rhodes University, South Africa A-R Childs --- Rhodes University, South AfricaAlong the south coast of South Africa, extreme upwelling events lead to rapid temperature declines and prolonged marine cold-spells, which have, on occasion, led to large-scale mortalities of coastal fishes. In a somewhat antagonistic process, fishing exploitation has been shown... -
An estimation of liquidity effects of market microstructure changes in the Indian agricultural commodity market
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Sreekha Pullaykkodi --- Manipal School of Commerce and Economics, Manipal Academy of Higher Education, IndiaThe effects of market microstructure change on the liquidity of the Indian agricultural commodity market are examined using 18 years of data by dividing it into different sub-samples. The study examines variations in market liquidity by conducting a year-wise analysis,... -
Analysis of wave energy distribution in the Gulf of Guinea based on reanalysis data from 1993 to 2019
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: G Dingong --- College of Marine Living Resource Sciences and Management, Shanghai Ocean University, China F Bonou --- International Chair of Physics, Mathematics and Applications, University of Abomey-Calavi, Benin Z Sohou --- International Chair of Physics, Mathematics and Applications, University of Abomey-Calavi, BeninThis study examined the geographical and seasonal distribution of wave parameters (significant height, period, direction) and wave energy in the Gulf of Guinea using MFWAM (Météo-France WAve Model) reanalysis data from 1993 to 2019. The model was validated utilising satellite,...
