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Changes in percentage moisture loss of excised leaves of seven field-grown grain sorghum genotypes
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W.G. Wenzel --- , Republic of South Africa W.J. van den Berg --- , Republic of South AfricaThe objectives of these experiments were to study the seasonal and diurnal changes in percentage moisture loss (PML) and correlated characteristics of excised leaves. Seven grain sorghum genotypes were planted in a randomized block design and their PML and the... -
Changes to regulations and the gear used in the South African commercial fishery for Jasus lalandii
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: D. S. Schoeman A. C. Cockcroft D. L. Van Zyl P. C. GoosenAlterations to the operational fishing gear used in the South African west coast rock lobster Jasus lalandii fishery and their resultant impacts are investigated. The most important developments have been: (i) a change during the 1960s from hand-hauled hoopnets to... -
FISH POPULATIONS IN THE MIDDLE AND LOWER ORANGE RIVER, WITH SPECIAL REFERENCE TO THE EFFECTS OF STREAM REGULATION
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.A. Cambray --- Cape Department of Nature and Environmental Conservation, Republic of South AfricaThe results of two surveys, in March 1982 and September 1983, on the distribution and status of freshwater fish in the highly regulated section of the Orange River, from the P.K. Le Roux Dam wall to the mouth of the... -
EFFECT OF CONSTANT TEMPERATURE ON POPULATION DYNAMICS OF BULINUS TROPICUS (KRAUSS) AND LYMNAEA NATALENSIS KRAUSS
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: K.N. de Kock --- Snail Research Unit of the South African Medical Resesrch Council, South Africa J.A. van Eeden --- Snail Research Unit of the South African Medical Resesrch Council, South AfricaLife-tables were compiled for cohorts of the two freshwater snail species Bulinus tropicus (Krauss) and Lymnaea natalensis Krauss at six different constant temperatures from 17 to 32 °C under identical conditions of crowding, feeding and chemical composition of the water... -
Response to elevated CO2 from a natural spring in a C4-dominated grassland depends on seasonal phenology
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: SJE Wand GF Midgley WD StockA South African C4-dominated grassland was exposed to twice-ambient atmospheric CO2 concentration using gas emitted by a natural CO2 spring and distributed over a 7m x 7m plot. A similar control plot was established 20m away at near-ambient CO2 concentrations... -
The Role of Identity in Self-Regulation: When Do Students Cope and When Do They Commit?
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Salomé Human-Vogel --- University of Pretoria,The aim of this study was to explore commitment in postgraduate students in relation to self-regulation. An exploratory case study design was employed. Three participants completed unstructured interviews about commitment, the Structured Interview for the Five-Factor Model of Personality (SIFFM)... -
Perceived Challenges in the Self-Management of Essential Hypertension in South African Settings
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karel F.H. Botha --- North-West University, Wynand F. du Plessis --- North-West University,The study investigated the subjective experiences of Essential Hypertension (EH) in a sample of urban white Afrikaans-speaking (n=25) and black Sotho-speaking (n=25) patients. Measures of self-management were obtained and their subjective experience of EH and its self-management was explored during... -
Psychometric Properties of the Short Self-Regulation Questionnaire (SSRQ) in a South African Context
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan C. Potgieter --- North-West University, South Africa Karel F.H. Botha --- North-West University, South AfricaSelf-regulation (SR), an important construct within the psychological well-being context, involves the ability to monitor behaviour, to contrast it with reference values and to introduce adjustments where necessary. A lack of validated measures of SR in the South African context... -
Gender Effects on Self-Regulation Among University Students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Anke S. Cloete --- North-West University (Potchefstroom Campus), Karel F. H. Botha --- North-West University (Potchefstroom Campus), J. Wilma Breytenbach --- Statistical Consultation Services, North-West University (Potchefstroom Campus),The aim of this study was to explore the relation between self-regulation, psychopathology and gender amongst a group of South African university students (N=384). Self-regulation was measured with the Shortened Self-Regulation Questionnaire (SSRQ: Carey, Neal, & Collins, 2004), and psychopathology... -
The sublethal effects of zinc at different water temperatures on selected haematological variables in Oreochromis mossambicus
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PP Buthelezi V Wepener DP CyrusTrace metals such as zinc play an important role in the normal metabolic functioning of all organisms. However, metals can become toxic if background concentrations are exceeded in the environment. This study investigated the sublethal effects of zinc on the... -
Sublethal effects of manganese on the haematology and osmoregulation of Oreochromis mossambicus after acute exposure
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Barnhoorn JHJ van VuurenOreochromis mossambicus were exposed for 96 hours to sublethal manganese concentrations in a continuous flow-through system. The sublethal concentrations were determined from the LC50 value of manganese (1.723mg/l), which included a 10% (172.3mg/l), 15% (259.8mg/l) and 20% (345.6mg/l) concentration of... -
Beacons in the limnological landscape
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BR AllansonAn overview is given of a number of major developments in the limnology of South Africa, Zimbabwe and Namibia. None was possible without the involvement of enthusiastic investigators who, over some 70 years, stimulated the growth of freshwater research in... -
The effect of copper and zinc at neutral and acidic pH on the general haematology and osmoregulation of Oreochromis mossambicus
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: G Nussey --- Department of Zoology, South Africa J HJ van Vuren --- Department of Zoology, South Africa HH du Preez --- Department of Zoology, South AfricaThe objective of this study was to determine the effect of sublethal copper and zinc concentrations at a neutral and an acidic pH, on selected haematological parameters as well as on the total osmolality and electrolyte concentrations of Oreochromis mossambicus... -
Influence of salinity and cadmium on the survival and osmoregulation of Callianassa kraussi and Chiromantes eulimene (Crustacea: Decapoda)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Thwala --- Department of Zoology and Coastal Research Unit of Zululand, South Africa BK Newman --- Department of Zoology and Coastal Research Unit of Zululand, South Africa DP Cyrus --- Department of Zoology and Coastal Research Unit of Zululand, South AfricaThis study investigated the influence of salinity and cadmium on the survival and osmoregulatory capability of two decapod crustaceans, Callianassa kraussi and Chiromantes eulimene. Callianassa kraussi was able to survive in salinities of 5–55 over 96 h, whilst C. eulimene... -
Assessment of current data for the octopus resource in Rodrigues, western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: WHH Sauer --- Department of Ichthyology and Fisheries Science, South Africa W Potts --- Department of Ichthyology and Fisheries Science, South Africa D Raberinary --- , UK J Anderson --- , Mauritius MJ Sylvio Perrine --- , RodriguesThe annual catch of octopus in the Rodrigues Lagoon, located east/north-east of Mauritius, has dropped by almost half since 1994. This has prompted concern over the resource and has initiated an assessment of the current status of the stock. The... -
Population dynamics of southern elephant seals: a synthesis of three decades of demographic research at Marion Island
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PA Pistorius --- Department of Zoology, South Africa PJN de Bruyn --- Department of Zoology and Entomology, University of Pretoria, South Africa MN Bester --- Department of Zoology and Entomology, University of Pretoria, South AfricaSouthern elephant seal Mirounga leonina numbers declined precipitously throughout most of their circumpolar distribution since the 1950s. A long-term intensive demographic programme was initiated in 1983 on the relatively small population of southern elephant seals at sub-Antarctic Marion Island in... -
Mobile Money for Financial Inclusion: Policy and Regulatory Perspective in Zimbabwe
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Alex Bara --- Senior Economist at the Agriculture Bank of Zimbabwe, ZimbabweThe introduction of mobile telephony and innovative technology in financial services is forcing regulators to re-evaluate their rules for financial service provision. Zimbabwe also adopted mobile financial service, and has realised rapid growth in mobile financial services. Inevitably, it has... -
Management options For Australian Blackwood (Acacia melanoxylon) in Southern Cape Forests, South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: A.H.W. Seydack --- Department of Water Affairs and Forestry,Australian Blackwood (Acacia melanoxylon) was actively introduced into the indigenous forests of the southern Cape until about 1930. On the perception that this exotic species constituted a threat to the indigenous forest, a policy of eradication was followed. This perception... -
Impact of winter flow regulation on pest-level populations of blackfly (Diptera: Simuliidae) and non-target faunal communities in a South African river
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NA Rivers-Moore FC de MoorThe mid-reaches of the Great Fish River in the Eastern Cape Province of South Africa experience regular outbreaks of the pest blackfly Simulium chutteri as a direct consequence of increased flows caused by an inter-basin transfer scheme. There are opportunities... -
Using baseline biological and ecological information to design a Traffic Light Precautionary Management Framework for leerfish Lichia amia (Linnaeus 1758) in southern Angola
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: WM Potts WHH Sauer A-R Childs ADC DuarteThe coastline of southern Angola is sparsely populated and, largely because of a protracted civil war, has very lightly exploited inshore fish stocks. This has provided the almost unprecedented opportunity to determine prefishing-state reference points and to implement management strategies... -
Epigenetics: beyond genes
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: A FosseyGene regulatory processes lead to differential gene expression and are referred to as epigenetic phenomena; these are ubiquitous processes in the biological world. These reversible heritable changes concern DNA and RNA, their interactions, and chromatin-mediated and RNA-mediated mechanisms. DNA compaction... -
Informed consent for anaesthesiological and intensive care unit research: a South African perspective
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: JAM De Roubaix --- Centre for Applied Ethics, Department of Philosophy,Health research is highly regulated and controlled. The South African legal framework consists of the Bill of Rights, the National Health Act, and two sets of Department of Health guidelines, Medical Research Council Ethical Guidelines Book 1, and South African... -
Interpersonal conflict and meaning making in early adulthood: a self-regulation perspective
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karel F.H. Botha --- School for Psychosocial Behavioural Sciences, South AfricaThe aim of this study was to explore meaning making in response to interpersonal conflict in a group of young adults. A self-regulatory perspective was taken to explore and elaborate on current approaches to meaning making. Participants were 127 young... -
Potential impacts of alternative regulatory interventions on the recreational value of angling on the Breede River estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JK Turpie --- Environmental-Economics Policy Research Unit, South Africa JR Goss --- Anchor Environmental Consultants, Silverwood Close, South AfricaThis study investigated the support for, and potential impacts of, alternative management measures to address declining fish stocks in the Breede River estuary. A survey of residents and visitors was carried out during 2011–2012. Angling was the most important attraction... -
The incidence of torpor in winter and summer in the Angolan free-tailed bat, Mops condylurus (Microchiroptera: Molossidae), in a subtropical environment, Mpumulanga, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: L. Vivier --- Zoology Department, South Africa M. van der Merwe --- Department of Zoology and Entomology, South AfricaThe incidence of torpor during summer and winter in response to cold exposure in Mops condylurus was studied in a subtropical environment. Body temperature changes under natural roosting conditions during winter and summer were monitored using bats fitted with temperature-sensitive... -
Evidence for density dependent population regulation in southern elephant seals in the southern Indian Ocean
Item type: Journal Article • Journal: African Zoology • Authors: P. A. Pistorius --- Department of Zoology and Entomology, South Africa F. E. Taylor --- Department of Zoology and Entomology, South Africa M. N. Bester --- Department of Zoology and Entomology, South Africa G. J. G. Hofmeyr --- Department of Zoology and Entomology, South Africa S. P. Kirkman --- Department of Zoology and Entomology, South AfricaThe means by which populations are regulated form a central theme in conservation biology, and much debate has revolved around density dependence as a mechanism driving population change. Marion Island (46°54‘S, 37°45‘E) is host to a relatively small breeding population... -
Blood plasma glucose regulation in Wahlberg’s epauletted fruit bat
Item type: Journal Article • Journal: African Zoology • Authors: Babalwa R. Mqokeli --- School of Life Sciences, University of KwaZulu-Natal, South Africa Colleen T. Downs --- School of Life Sciences, University of KwaZulu-Natal, South AfricaFrugivores feed on fruits and nectars that contain different types of sugars in different proportions, which provide these animals with energy. Wahlberg’s epauletted fruit bat (Epomophorus wahlbergi) has a high glucose intake irrespective of sugar concentration of nectar. It is... -
Year-round territoriality in long-lived birds: rethinking the concept of carrying capacity
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Douglas Loewenthal --- , Dane M Paijmans --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- ,Adult African Black Oystercatchers Haematopus moquini are sedentary and territorial year round, with juveniles expressing strong natal philopatry. At four South African study sites (two mainland and two islands) breeding numbers more than doubled between the late 1970s/early 1980s and... -
Can behaviour buffer the impacts of climate change on an arid-zone bird?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Susan J Cunningham --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Rowan O Martin --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South AfricaBehavioural thermoregulation, particularly the use of cool microclimates, is one method by which organisms could avoid the worst effects of climate warming. However, retreat into cool microsites, e.g. shady vegetation or burrows, may carry important lost-opportunity costs. These could include... -
Elevated temperatures drive fine-scale patterns of habitat use in a savanna bird community
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Rowan O Martin --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Susan J Cunningham --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- ,Many animals use thermally buffered microhabitats, e.g. patches of shade within trees, to avoid temperature extremes. These ‘thermal refugia’ may mediate the impact of climate change on animals. Predicting how species and communities will respond to rising temperatures therefore requires... -
The effects of IFRS adoption: A review of the early evidence
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Negash --- School of Accountancy,This review documents the conceptual, methodological and policy issues that relate to the domain of financial reporting research that attempts to examine whether there are measurable gains, (if any) stemming from the adoption of international financial reporting standards, (IFRS). It... -
Commentary: How accounting information is used by the South African Bank Regulator
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: L Bakoro --- University of Cape Town, P de Jager --- University of Cape Town, S Parsons --- University of Cape Town,Fair value accounting has been named by some as a role-player in the recent financial crisis. The initial defensive argument that accounting is only a messenger is easily dispelled by considering its vital role in banking and bank supervision, as... -
Fisheries management and conservation of sharks in Indonesia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: Dharmadi --- Research Centre for Fisheries Management and Conservation, Indonesia Fahmi --- Research Centre for Oceanography, Indonesia F Satria --- Research Centre for Fisheries Management and Conservation, IndonesiaIndonesian waters have a high diversity of sharks and rays, with at least 118 species belonging to 25 families found throughout the vast archipelago. Indonesia also has the highest shark landings globally and nearly all high‑value shark species are overexploited... -
Juvenile survival and population regulation in southern elephant seals at Marion Island
Item type: Journal Article • Journal: African Zoology • Authors: P.A. Pistorius --- Mammal Research Institute, South Africa M.N. Bester --- Mammal Research Institute, South AfricaWe examined annual juvenile survival in southern elephant seals (Mirounga leonina) at Marion Island for the period 1994–1999 during which time the population was stable. Using mark–recapture models, we tested for age- and sex-specific differences in survival rates over the... -
Tomatis® Method comparative efficacy in promoting self-regulation in tertiary students: A systematic review
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Annelize Bonthuys --- School for Psychosocial Behavioural Sciences, North-West University:, South Africa Karel Botha --- School for Psychosocial Behavioural Sciences, North-West University:, South AfricaThis systematic review sought to determine the evidence on how the Tomatis® Method, a sound stimulation intervention for improving listening, compares to other self-regulation interventions with tertiary students. We searched studies from the following data bases ‘Academic FileOne, CINAHL, Cochrane... -
Psychometric properties of a measure of psychological factors among francophone adolescent learners in a South African setting
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Moletsane Mokgadi --- Department of Educational Psychology, South Africa Robert Kananga Mukuna --- Department of Educational Psychology, South AfricaThis study reported on the psychometric properties of a prospective measure of psychological wellbeing among immigrant francophone adolescent learners in high schools in the Western Cape, South Africa. The sample size comprised 170 participants (females = 51%; age range 14... -
The advertising of nutritional supplements in South African women’s magazines: a descriptive survey
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: A Schoonees --- Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, T Young --- Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, J Volmink --- Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences,Objective: Nutritional supplements are inadequately regulated in South Africa. These types of products are increasingly advertised and the advertisements frequently contain health claims. Because advertisements play a considerable role in informing potential consumers, it is crucial that information about supplements... -
Perceptions of students regarding the effects of the implementation of the tobacco control act of 1999 on a South African University campus
Item type: Journal Article • Journal: South African Family Practice • Authors: M.W. Khan --- Department of Basic Medical Sciences, South Africa V. Hira --- Department of Basic Medical Sciences, South Africa F. Haffejee --- Department of Basic Medical Sciences, South AfricaBackground: Smoking among adolescents is high. In order to curb the habit, restrictions on use of tobacco products in public places were implemented in South Africa. This study aimed to explore students’ perceptions of whether the implementation of smoking restrictions... -
Prospective conceptual model of Tomatis® method effects on students’ self-regulation
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Annelize Bonthuys --- Community Psychosocial Research (COMPRES), Department of Psychology, South Africa Karel Botha --- Community Psychosocial Research (COMPRES), Department of Psychology, South Africa Anneke Stols --- African Unit of Transdisciplinary Health Research (AUTHeR), South AfricaThis study aimed to develop a preliminary conceptual model that explains the perceived effect of the Tomatis® method on university students’ self-regulation for study course learning. Seven beginning graduate students (6 female; 3 black, 4 white) with a large South... -
Diet and time-activity budget of White-backed Mousebirds Colius colius in south-western South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Carlos Bosque --- Departamento de Biología de Organismos, Venezuela Carlos D Bosque --- Departamento de Arquitectura, Venezuela Penn Lloyd --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, AustraliaMousebirds (Coliiformes) are unusual in having an exclusively vegetarian diet that includes substantial foliage and by using huddling and sunning to assist thermoregulation. Although previous studies have identified plant species and plant parts consumed by mousebirds, the relative importance of... -
Variation in the daily activity, movement and refugia of Critically Endangered geometric tortoises, Psammobates geometricus, in autumn and spring
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Brian T. Henen --- , , South Africa Ulric P. van Bloemestein --- , , South Africa Margaretha D. Hofmeyr --- , , South Africa Craig A. Weatherby --- , , USATo help assess habitat requirements of Critically Endangered geometric tortoises, we used thread-trailing to measure daily activity, movements and refugia of adult Psammobates geometricus in autumn and spring 2002. We found strong differences between seasons, and effects of weather, individuals... -
Cell phone usage relational regulation strategies of older South Africans
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sandra Steyn --- Optentia Research Focus Area, South Africa Vera Roos --- Optentia Research Focus Area, South Africa Karel Botha --- Community Psychosocial Research (COMPRES), South AfricaThis study explored older South Africans’ relational regulation strategies in using their cell phones to address their social goals and psychosocial needs. Nineteen older South Africans (17 female; 2 male), aged 60 and older, who had access to a cell... -
Accounting students’ experiences of peer assessment: A tool to develop lifelong learning
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Marelize Malan --- , South Africa Nerine Stegmann --- , South AfricaThe accounting profession highlights lifelong learning as a vital fundamental competency. Peer assessment, self-assessment and self-directedness contribute to the development of lifelong learning skills. These interrelated skills should be fostered through higher education programmes, requiring intentional interventions. Peer assessment is... -
The energetic significance of communal roosting and insulated roost nests in a small arid-zone passerine
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Nevanya Lubbe --- DST-NRF Centre of Excellence at the FitzPatrick Institute, Department of Zoology and Entomology, South Africa Zenon J Czenze --- School of Biological Sciences, New Zealand Matthew J Noakes --- DST-NRF Centre of Excellence at the FitzPatrick Institute, Department of Zoology and Entomology, South Africa Andrew E McKechnie --- DST-NRF Centre of Excellence at the FitzPatrick Institute, Department of Zoology and Entomology, South AfricaSmall endotherms have evolved behavioural mechanisms for reducing rest-phase energy expenditure, which reduce the likelihood of mismatches between energy supply and demand during periods of cold weather and/or food scarcity. Although the energetic consequences of communal roosting and the use... -
The discourse of institutional change in the Zambian microfinance sector
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Juliana Siwale --- Nottingham Business School, UK Jonathan Kimmitt --- Newcastle University Business School, UK Bruce LamontThis paper investigates the discourse of key actors instigating institutional change in the Zambian microfinance sector. It draws from the institutional story of Zambia, which has experienced regulatory and legislative flux since drafting its first microfinance act in 2006. Building... -
The behavioural self-regulation strategies of Indian South African university students: An exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacob J. P. Le Grange --- School of Psychosocial Health / Community Psychosocial Research (COMPRES), South Africa Karel F. H. Botha --- School of Psychosocial Health / Community Psychosocial Research (COMPRES), South AfricaThis study explored the race-related self-regulation strategies of eight Indian South African university students (females: n = 4) attending a historically white university. Interactive qualitative analysis of their race-related experiences revealed that the students felt that they had been judged... -
The subtropical–temperate transition along the east coast of South Africa shapes the thermal physiology of the truncated mangrove snail Cerithidea decollata (Gastropoda: Caenogastropoda, Potamididae)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AS Nonyukela --- Department of Zoology and Entomology, South Africa S Baldanzi --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa LU Vumazonke --- Department of Zoology and Entomology, South AfricaThe east and south coasts of South Africa are characterised by a transition from subtropical to warm-temperate conditions. This transition in environmental temperatures may shape the physiological tolerance of ectothermic species inhabiting harsh environments, such as the intertidal zone. A... -
Emotion regulation mediates the relationship between college students’ perceived social support and social anxiety
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Huifang Yang --- , China Junqing Li --- , China Xiaoqing Qiu --- , China Yuling Zheng --- , China Xin Song --- , ChinaWe investigated the role of emotional regulation in the relationship between perceived social support and social anxiety. Participants were 547 college students (female = 69%; freshmen = 33%; mean age = 21.13 years, SD = 1.12 years). For the measures,... -
“Just smile and wave”: Workplace requirements and emotional labour of academic staff at a South African university
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Susanna Maria O’Neil --- , South Africa Jeshika Gopal --- , South AfricaEmotional labour is a part of all work situations, and how people manage it influences their quality of work-life. We aimed to study lived emotional labour and sustainable work participation of a sample of 15 South African university lecturers (females=... -
Institutions and brain drain: The role of business start-up regulations
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Patrick Marie Nga Ndjobo --- , Cameroon Noémia Certo Simões --- , PortugalThe objective of this article is to re-examine the relationship between African institutions and the migration phenomena. Specifically, we analyze the relationship between business start-up regulations and the brain drain from sub-Saharan African (SSA) countries towards those in OECD. Using... -
An assessment of water and sediment quality of aquatic ecosystems within South Africa’s largest floodplain
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: D van Rooyen --- , South Africa R Gerber --- , South Africa NJ Smit --- , South Africa V Wepener --- , South AfricaNdumo Game Reserve (NGR), a Ramsar site, situated in South Africa’s largest floodplain (Phongolo River floodplain) in northern KwaZulu-Natal, with important aquatic ecosystems: the Usuthu and Phongolo rivers and their associated floodplain lakes. While the Phongolo River is regulated, the... -
How to make measurements in thermoregulatory studies: the heating debate continues
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Shelley Currin --- University of the Witwatersrand, South Africa Graham John Alexander --- University of the Witwatersrand, South Africa -
Temperature regulation in free-ranging ectotherms: what are the appropriate questions?
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: PaulE. Hertz --- Barnard College, Columbia University, USA RaymondB. Huey --- University of Washington, USA RobertD. Stevenson --- University of Massachusetts Boston, USA -
A respone to Hertz, Huey and Stevenson
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Graham John Alexander --- University of the Witwatersrand, South Africa Shelley Currin --- University of the Witwatersrand, South Africa -
Analysis of intraspecific colour variation in the fossorial Coastal Legless Lizard, Microacontias litoralis (Scincidae: Acontiinae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: PhomoloL. Mashinini --- Transvaal Museum, South Africa Neil.J. L. Heideman --- University of the Free State, South Africa P. le FrasN. Mouton --- Stellenbosch University, South AfricaAn analysis of intraspecific variation in the fossorial skink Microacontias litoralis revealed that orange‐coloured and melanistic individuals co‐occur at several localities. Body colour was found to be independent of sex and body size. Both orange‐coloured and melanistic in situ embryos... -
Trait anger and aggression among male violent offenders: The mediating effect of sadistic impulse and the moderating effect of emotion regulation
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Qinhong Xie --- Zunyi Medical University, China Bingtao Zhou --- China University of Political Science and Law, China Taiyong Bi --- Zunyi Medical University, China Bo Yang --- China University of Political Science and Law, China Hui Kou --- Zunyi Medical University, ChinaWe investigated the mediating role of sadistic impulse and the moderating role of emotion regulation strategy in the relationship between trait anger and aggressive behaviour in violent offenders. A total of 492 male violent offenders (mean age = 34.06 years,... -
Father–child relationship and children’s peer competence: Mediated by children’s emotional regulation and environmental adaptation
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Wenxiao Cui --- Shaoxing University, China Ruiqian Li --- Shaoxing University, China Xiao Yang --- Shaoxing University, China Xia Wu --- Shaoxing University, ChinaThis study aimed to explore father–child relationships and young children’s peer competence, as mediated by child emotional regulation and environmental adaptation. The children’s fathers and teachers completed peer competence, child emotional regulation and environmental adaptation measures on 216 Chinese children... -
Huddling in the heat? Rarely seen thermoregulatory behaviours as Southern Pied Babblers Turdoides bicolor compete for cool microsites
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Amanda R Bourne --- University of Cape Town, South Africa Camilla Soravia --- The University of Western Australia, AustraliaHuddling is an important thermoregulatory behaviour used by many group-living endotherms to conserve energy during cold weather or periods of food scarcity. It is not typically considered a strategy for keeping cool during hot weather, largely because endotherms produce body... -
Primary caregivers’ perspectives of the disruptive behaviour of their children attending Weskoppies Psychiatric Hospital, South Africa
Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Lanél Maré --- University of Pretoria, South Africa Werdie van Staden --- University of Pretoria, South Africa Junaid Hassim --- University of Pretoria, South AfricaWhile practitioners might engage caregivers on their understandings of the disruptive behavioural disorders of their children, their perspectives are yet to be examined in a qualitative study. This study explored perspectives of primary caregivers on the disruptive behaviour of children... -
Father’s parenting attitude and teacher-child relationships: Mediating role of children’s self-regulation ability
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: --- College of Teacher Education, Shaoxing University, China --- College of Teacher Education, Shaoxing University, China --- College of Teacher Education, Shaoxing University, China --- College of Teacher Education, Shaoxing University, China --- College of Teacher Education, Shaoxing University, ChinaWe examined father’s parenting attitudes in association with teacher-child relationships and the mediating role of young children’s self-regulation ability in this relationship. Participant fathers (n = 211), age range (below 30 to over 41 years of age) and teachers (n... -
Call to prayer: the sound of the adhan, heritage and shifting urban identity in Cape Town
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Duane Jethro --- University of Cape Town, South Africa Mahoati Arthur Lehloenya --- University of Johannesburg, South AfricaArchitectural analyses of heritage and the city largely focus on the visual and physical properties of buildings and sites. Traces of intangible, sensuous heritage such as sounds, smells and community-lived experience are often left out. This article critiques this tradition... -
Thermal tolerances of littorinid snails from temperate and subtropical South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CD McQuaid --- Rhodes University, South Africa TG Matumba --- Rhodes University, South AfricaEnvironmental temperature affects ectotherm performance and fitness because physiological performance increases up to a sublethal optimum temperature; this is not fixed, but depends on the species and individual history. We explored the influence of species identity, size and thermal history... -
Financial innovation and banking performance: The role of banking regulations in SAARC Region
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Hussain Abbas --- Zhongnan University of Economics and Law Wuhan, People’s Republic of China Guo Fei --- Zhongnan University of Economics and Law Wuhan, People’s Republic of China Shah Abbas --- China University of Geosciences Wuhan,, People’s Republic of China Farhan Hussain --- Central South University, People’s Republic of ChinaThe rapid proliferation of information and communication technology has accelerated innovation in financial instruments, resulting in a heightened transformation of the competitive landscape and regulatory framework within the banking sector. Despite ongoing policy debates regarding the role and significance of... -
Purposeful rumination on childhood trauma and post-traumatic growth among college students: A moderated mediation model
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Caiping Zhou --- Hunan University of Finance and Economics, China Liu Ning --- Hunan Normal University, China Haibin Li --- Jiangxi University of Chinese Medicine, ChinaThis study explored the role of cognitive reappraisal and perceived social support in the relationship between purposeful rumination and post-traumatic growth among college students who experienced childhood trauma. A total of 811 college students with childhood trauma exposure (female =... -
Family cohesion and adaptability effects on social anxiety among adolescents: The mediating role of experiential avoidance
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yakun Ni --- Institute of Applied Psychology, Guangdong University of Finance, China Shiya Zeng --- Institute of Applied Psychology, Guangdong University of Finance, China Yanzhen Xu --- Guangdong Polytechnic Normal University, China Tengfei Guo --- Guangdong Polytechnic Normal University, ChinaWe investigated the effect of family cohesion and adaptability on adolescent social anxiety and explored the mediating effect of experiential avoidance between them. A total of 610 adolescents completed the Family Adaptability and Cohesion Evaluation Scales II, the Acceptance and... -
Trends in ethical transgressions amongst South African dietetic practitioners
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: A Baldassarre --- Saint Louis University, USA M Pontarelli --- University of Texas MD Anderson Cancer Center, USA J Wilkenson --- University of the Western Cape, South Africa Y Gezu --- Augustana College, USA M Nortje --- Christopher Newport University, USA G Truong --- Skidmore College, USA N Ravi --- The University of Texas MD Anderson Cancer Center, USA N Nortje --- The University of Texas MD Anderson Cancer Center, USA WA Hoffmann --- Research Ethicist in Private Practice, The NetherlandsThis study investigated ethical transgressions amongst dietetic practitioners in South Africa, using publicly available data from the Health Professions Council of South Africa (HPCSA) in the period 2014–2023. The study is a follow-up on the study by Nortje and Hoffmann...