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MASS CULTURE OF
MICROCYSTIS UNDER STERILE CONDITIONSItem type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: G. H.J. Krüger --- Botany Department, J.N. Eloff --- Botany Department,The design and use of a 601 all-glass culture system for the mass production of Microcystis (or other unicellular algae) under sterile conditions, are described. Bleaching and lysis of the cells could be prevented by controlling the pH and CO2... -
Factors Impacting on Career Choices of Technikon Students From Previously Disadvantaged High Schools
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Olaniyi Bojuwoye --- University of Kwazulu Natal, Sihle Mbanjwa --- University of Kwazulu Natal,Career development is a socially constructed process involving complex interactions among different structures, forces, and systems all constituting spheres of influence. The purpose of this study was to investigate factors that influence career decisions. Eighty respondents (40 males and 40... -
South African Adolescents' Career Development through the Lens of the Systems Theory Framework: An Exploratory Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mary McMahon --- The University of Queensland, Mark Watson --- Nelson Mandela Metropolitan University, Cheryl Foxcroft --- Nelson Mandela Metropolitan University, Asha Dullabh --- Nelson Mandela Metropolitan University,Adolescent career development has predominantly been studied in the context of middle class Eurocentric cultures and there have been calls for greater attention to the career development of non-dominant and disadvantaged groups. Further, there have been calls to explore career... -
Psychosocial Health of an African Group before Awareness of HIV Status: A Comparative Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lanél Maré --- North-West University (Potchefstroom Campus), South Africa Marié P. Wissing --- North-West University (Potchefstroom Campus), South Africa Mada J. Watson --- North-West University (Potchefstroom Campus), South Africa Suria M. Ellis --- North-West University (Potchefstroom Campus), South AfricaThis study aimed to explore the psychosocial health profiles of people with and without HIV before they learned their infection status. A total of 1,025 participants (males = 386, females = 639, age range = between 32 and 87, infected... -
Human rights and access to AIDS treatment in Mozambique
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Erling HøgThis article explores key issues related to the agitation for human rights in Mozambique and its weak performance power. I define human rights in the context of HIV/AIDS as well as rights-based approaches to development and health. Based on fieldwork,... -
Challenging dominant norms of masculinity for HIV prevention
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Catherine MacPhail --- Reproductive Health Research Unit, Department of Obstetrics and Gynaecology, South AfricaWithin South Africa there is a growing HIV epidemic, particularly among young heterosexual people. A recent report (NMF/HSRC, 2002) indicates that levels of HIV infection among young people aged 15–24 years are 9.3% although other studies in more specific locations... -
Influence of selected abiotic factors on aquatic macroinvertebrate assemblages in the Olifants River catchment, Mpumalanga, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Kemp --- Unit for Environmental Sciences and Management, South Africa KN de Kock --- Unit for Environmental Sciences and Management, South Africa V Wepener --- Unit for Environmental Sciences and Management, South Africa W Roets --- Unit for Environmental Sciences and Management, South Africa L Quinn --- Unit for Environmental Sciences and Management, South Africa CT Wolmarans --- Unit for Environmental Sciences and Management, South AfricaBiodiversity is frequently seen as an indicator of ecological health. Therefore a survey of the macroinvertebrates of the Olifants River, one of the most polluted rivers in South Africa, was conducted in 2010–2011. Four surveys were conducted at a total... -
Age, Gender and Social Class Influences on Skin Colour Preferences Among Mozambican Children
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Germano Vera Cruz --- University of Toulouse II, FranceThis study examined skin colour preferences among Mozambican children (N = 500; male = 48% and females = 52%; middle-high SES = 48% and low SES = 52%; mean age = 7.34 and SD = 1.80). The children selected preferred... -
Increasing students’ safety awareness in a teaching hotel
Item type: Journal Article • Journal: • Authors: Jan Bossema --- Stenden Hotel, Leeuwarden, The NetherlandsDuring the past years the attention for safety and health at work has increased, partly through the influence of European law and labour agreements and by acknowledging the huge economic impact of accidents and calamities. It is notable that companies... -
To what extent are students as middle managers at a training hotel involved in strategic decision making?
Item type: Journal Article • Journal: • Authors: Tjeerd Zandberg --- Stenden University, the NetherlandsResearch has shown that middle managers can exert major upward or downward influence on their organisation’s strategy. In the practice department of our hotel school, senior students act as managers to train managerial competences. To analyse if this reflects reality,... -
Incorporating stable isotopes into a multidisciplinary framework to improve data inference and their conservation and management application
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: HM Christiansen --- Great Lakes Institute for Environmental Research, Canada AT Fisk --- Great Lakes Institute for Environmental Research, Canada NE Hussey --- Great Lakes Institute for Environmental Research, CanadaThrough its ability to address complex ecological questions and the possibility of analysing large sample sizes to understand population‑level processes, the use of stable isotope analysis (δ13C and δ15N) has grown rapidly in recent years. Importantly, it is now becoming... -
Recent shoreline changes in the Volta River delta, West Africa: the roles of natural processes and human impacts
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: EJ Anthony --- Aix-Marseille University, France R Almar --- LEGOS (CNRS-IRD-CNES-University of Toulouse), France T Aagaard --- University of Copenhagen, DenmarkThe Volta River delta developed as an asymmetric lobe in a tectonic offset on the coast of Ghana. The delta comprises a large curvilinear spit that widens in its central portion due to the adjunction of successive sandy beach ridges... -
Workplace innovation influence on occupational safety and health
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kassu Jilcha --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, Ethiopia Daniel Kitaw --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, Ethiopia Birhanu Beshah --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, EthiopiaInnovation is an important science for the sustainable development of any country. Workplace innovation brings radical change in the workers’ environment, thereby enhancing the profitability of companies. However, most research and discussion of innovations are focussed on product development and/or... -
Subfossil diatoms from Hann Park pond, Dakar, Senegal: floristic inventory and palaeoenvironmental reconstruction
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Badiane --- Département de Géologie, Faculté des Sciences et Techniques, E Sow --- Département de Géologie, Faculté des Sciences et Techniques, CAK Fofana --- Département de Géologie, Faculté des Sciences et Techniques, C Aw --- Département de Géologie, Faculté des Sciences et Techniques,Diatoms in a 100 cm-long core from a pond in Hann Forest Park, western Senegal, were studied with the aim of reconstituting this interdune depression’s history, particularly the human influence, during the last century. Sixty-three species and varieties of diatoms... -
Political economy of decentralising HIV and AIDS treatment services to primary healthcare facilities in three Nigerian states
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Chinyere Mbachu --- Health Policy Research Group, Department of Pharmacology and Therapeutics, College of Medicine, Nigeria Obinna Onwujekwe --- Health Policy Research Group, Department of Pharmacology and Therapeutics, College of Medicine, Nigeria Nkoli Ezumah --- Health Policy Research Group, Department of Pharmacology and Therapeutics, College of Medicine, Nigeria Olayinka Ajayi --- , Nigeria Olusola Sanwo --- , Nigeria Benjamin Uzochukwu --- Health Policy Research Group, Department of Pharmacology and Therapeutics, College of Medicine, NigeriaDecentralisation is defined as the dispersion, distribution or transfer of resources, functions and decision-making power from a central authority to regional and local authorities. It is usually accompanied by assignment of accountability and responsibility for results. Fundamental to understanding decentralisation... -
To what extent are students as middle managers at a training hotel involved in strategic decision making?
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Tjeerd Zandberg --- Stenden University, the NetherlandsResearch has shown that middle managers can exert major upward or downward influence on their organisation's strategy. In the practice department of our hotel school, senior students act as managers to train managerial competences. To analyse if this reflects reality,... -
Increasing students' safety awareness in a teaching hotel
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Jan Bossema --- , The NetherlandsDuring the past years the attention for safety and health at work has increased, partly through the influence of European law and labour agreements and by acknowledging the huge economic impact of accidents and calamities. It is notable that companies... -
Bark thickness and bark volume of Pinus patula in South Africa
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: A. van LaarIn South Africa, tree volume tables and volume functions are usually based on the under bark stem volume. Many forest management studies, however, give the estimated over bark volume, in which case equations are required that estimate bark volume and... -
Relationships matter: contraceptive choices among HIV-positive women in Tanzania
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Tabitha Alexandria Njeri Nyanja --- Aga Khan University, Kenya Charlotte Tulinius --- Research Unit for General Practice, Department of Public Health, Faculty of Health Sciences, DenmarkEfforts to eliminate mother-to-child transmission of HIV in Tanzania are guided by a four-prong strategy advocated by the World Health Organization (WHO). Prong 2, prevention of unintended pregnancies among women living with HIV, has, however, received the least attention and... -
Exploring the personal and social context of female youth sex offenders
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- Department of Criminology & Security Science, South Africa Gloria da Costa --- Department of Criminology & Security Science, South AfricaThis study explored the personal and social context of young female sex offenders, probing their risk profiles for prospective treatment interventions. A convenience sample of eight young South African female sexual offenders participated in the study (black = 88%, Indian... -
Intertidal mangrove boundary zones as nursery grounds for the mud crab Scylla serrata
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DO Mirera --- Kenya Marine and Fisheries Research Institute (KMFRI), KenyaThe demand for mud crab Scylla serrata (Forsskål 1775) in the global market has increased, hence there is growing momentum to farm the species in Africa. Aquaculture production in Kenya and elsewhere in East Africa currently relies on juvenile seeds... -
Antecedents of risk-taking behaviour among South African adolescents
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marizé de Jager --- Department of Psychology, South Africa Luzelle Naudé --- Department of Psychology, South AfricaThis study aimed to investigate contextual predisposition to risk-taking behaviour among South African adolescents. Participants included 194 black adolescents from central South Africa (female = 50.5% between the ages of 16 and 19 years). The adolescents completed a youth risk... -
A review of the influence of municipal sustainable supply chain management on South Africa’s recycling performance
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Fannie Machete --- College of Agriculture and Environmental Sciences, South AfricaThis paper reviews the influence of municipal sustainable chain management on South Africa’s recycling performance. In this study, municipal supply chain management systems are identified as one of the major factors that influence the lack of municipal solid waste services... -
Social cognitive drivers of farmer learning behaviour in the student-to-farmer university outreach in Uganda
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Stephen W. Kalule --- Department of Extension and Innovations Studies, College of Agricultural and Environmental Sciences, Kampala, Uganda Haroon Sseguya --- Department of Extension and Innovations Studies, College of Agricultural and Environmental Sciences, Kampala, Uganda Duncan Ongeng --- Faculty of Agriculture and Environment, Gulu, Uganda Gabriel Karubanga --- Department of Extension and Innovations Studies, College of Agricultural and Environmental Sciences, Kampala, UgandaGlobally, universities are repositioning themselves for community outreach although with difficulty in responding to the unpredictable social features of host communities. Accordingly, this study aims to assess the role of social cognitive factors in farmer learning behaviour during university outreach... -
The Role of Fiction Writers in the Development of Kiswahili
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Ernest Sangai Mohochi [cor1]This paper analyses fiction writers’ contribution to the development of Kiswahili language. The paper is anchored on the assumption that writers play a big role in the development of language. The contribution of fiction writers has not been widely investigated... -
Mediation effect of perceived organisational and social support in the relationship between career adaptability and career satisfaction among professional women
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ndayiziveyi Takawira --- Department of Human Resource Management, South AfricaThis study examined whether perceived organisational support (POS) and social support mediated the relationship between career adaptability and career satisfaction among professional women. The participants were a purposive sample of 606 professional women (62% = white, 20% = black African,... -
Are macroeconomic factors adequate proxies for systematic influences in stock returns? A South African perspective
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Jan J. Szczygielski --- Department of Financial Management, Gauteng, South Africa Leon M. Brümmer --- Department of Financial Management, Gauteng, South Africa Hendrik P. Wolmarans --- Department of Financial Management, Gauteng, South Africa Adam Zaremba --- Dubai Business School, United Arab EmiratesWe investigate whether macroeconomic factors adequately proxy for systematic influences in stock returns within the South African context. We also investigate whether a commonly used solution to factor omission in macroeconomic factor models, the residual market factor, adequately reflects systematic... -
Changes in pre- and post-pandemic pricing decision factors: An overview of South Africa’s luxury accommodation sector
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Ewaldt Janssen [cor1]Large-scale events such as a worldwide pandemic impact multiple areas of the hospitality business, including the factors that influence luxury pricing. As pricing cannot be done in isolation, changes in trading environments need to be identified and pricing approaches adjusted... -
Family influence and career calling: The mediating role of work passion and career exploration
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Leigang Zhang --- , China Yuzhu Zhang --- , ChinaThe present study aimed to investigate the influence of work passion and career exploration on the relationship between family influence and career calling. The survey sample consisted of 410 primary and middle school teachers from 12 public schools in China... -
The Elephant Marsh, Malawi – Part 1: reconstruction of the historic hydromorphology
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AL Birkhead --- , South Africa CA Brown --- , South Africa H Bukhari --- , South Africa MK Reinecke --- , South Africa WO Mgoola --- , Malawi JK Nyirenda --- , MalawiThe Elephant Marsh lies on the floodplain of the lower Shire River, in southern Malawi. It is both a cultivated, seasonal floodplain and an area of permanent shallow lakes. The marsh is highly biodiverse, has a productive fishery and supports... -
Post-traumatic growth in Chinese parents of children with autism spectrum disorder: Statuses and personal factors
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ming Hong --- , ChinaThis study aimed to characterise post-traumatic growth among parents of children with autism spectrum disorder (ASD) and the related factors. Participants were 396 parents of children with autism from Guangdong Province, China (female = 65.15 %; mean age = 33.67... -
Psychological empowerment and job burnout in Chinese kindergarten teachers: The mediating effect of occupational stress
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ruiqian Li --- College of Teacher Education, Shaoxing University, China Jie Hou --- College of Teacher Education, Shaoxing University, China Xiongying Liu --- College of Teacher Education, Shaoxing University, China Tong Shen --- College of Teacher Education, Shaoxing University, China Jiaying Xu --- College of Teacher Education, Shaoxing University, China Ziyu Wu --- College of Teacher Education, Shaoxing University, ChinaWe explored the role of occupational stress in the relationship between psychological empowerment and job burnout in kindergarten teachers. Chinese female kindergarten teachers (n = 243) were participants (mean age = 28.2 years, SD = 5.08 years; specialist and below... -
Persuasion in compliance-gaining messages in Milubi’s play Ndi muṱodzi muni?
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Mawande Dlali --- Stellenbosch University, South Africa Masindi Sadiki --- Stellenbosch University, South AfricaThis article explores compliance-gaining messages in interpersonal interactions that show persuasion by critically analysing discourse excerpts from the Tshivenḓa play Ndi muṱodzi muni? (‘What kind of tear is this?’). The play displays how communication with goal-attainment intentions occur in Tshivenḓa...