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Risk analysis of wheat production in the central Orange Free State using a growth model
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A. Singels --- Department of Agrometeorology, Republic of South Africa J.M. de Jager --- Department of Agrometeorology, Republic of South AfricaA wheat crop growth model (Singels, 1983) was refined and used to calculate annual grain yield from weather data for 45 seasons in the Bloemfontein area. Five different levels of profile-available water capacity were used as soil input parameter. Other... -
Evaluating different wheat production strategies for the Orange Free State using stochastic dominance techniques and a crop growth model
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A. Singels --- Department of Agrometeorology, Republic of South Africa J.M. de Jager --- Department of Agrometeorology, Republic of South AfricaA wheat crop growth model and stochastic dominance techniques were used to evaluate several wheat production strategies for the Orange Free State. Fifty seasonal grain yields and corresponding gross margins were calculated from daily weather data and soil data for... -
A drought assessment model for Karoo rangeland
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.C. Venter --- , Republic of South AfricaThe KAROO drought assessment model simplifies veld growth responses to rainfall variability by simulation of the growth and dieback of a hypothetical plant species. Soil water content is treated as a simple weighting factor which determines the plant's growth rate... -
MANAGING THE ST. LUCIA ESTUARY—MESSAGES FROM THE MUD
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: R. K. Owen --- , , South Africa A. T. Forbes --- , , South AfricaThe infaunal macrobenthic community of the St Lucia estuary has been exposed to natural disturbance in the form of salinity fluctuations arising from floods and hypersaline conditions, and human-induced interference arising from dredging and beam trawling. The responses of the... -
A REVIEW OF THE MACROBENTHIC FAUNA OF THE MHLATHUZE ESTUARY: SETTING THE ECOLOGICAL RESERVE
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: C. F. Mackay --- , , South Africa D. P. Cyrus --- , , South AfricaThis paper reviews historical and current ecological information on macrobenthos from the Mhlathuze Estuary before and after development of the Richards Bay Harbour. The fauna is described in terms of the potential influence of a change in freshwater inflow to... -
Monitoring to detect change on rangelands: physical, social and economic/policy drivers
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J.R. Brown K.M. HavstadAgents that can cause important changes in properties of biological communities are referred to as drivers. Drivers may be classed as physical, social and economic/policy, referring to their origin and mode of action. Physical drivers include environmental (weather, climate) and... -
The influence of stocking rate, range condition and rainfall on residual herbage mass in the semiarid savanna of KwaZulu/Natal
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: G.P. Hatch --- Department of Grassland Science, Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South AfricaGrazing trials at two sites in the semiarid savanna of KwaZulu‐Natal were stocked with cattle at light (0.17 LSU ha‐1), intermediate (0.23 LSU ha‐1) and heavy (0.30 LSU ha‐1) stocking. Pasture disc meter data collected over 116 three‐week periods were... -
Optimising Nursery Operation Schedules with Multiperiod Linear Programming
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: RudolfJanse van Rensburg --- Department of Forest Science, South Africa BrianV. Bredenkamp --- Department of Forest Science, South AfricaA dynamic multiperiod linear programming model which addresses nursery scheduling is presented. Due to its dynamic nature, it provides a means to manage risks and uncertainties such as disease, rootstrike, germination and fluctuating demands. By optimising the whole production process,... -
Actuarial Criminology: Meeting Current Challenges in Southern Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- University of South Africa, Anastasios Ladikos --- University of South Africa,South African prisons were overcrowded by more than sixty-three percent in 2005. Overcrowding and poor prison conditions have enormous implications for rehabilitation efforts made by the South African Department of Correctional Services. The South African White Paper on Corrections (2005)... -
Still Photography Provides Data for Community-Based Initiatives
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mohamed Seedat --- UNISA Institute for Social and Health Sciences, Loni Baadjies Ashley van Niekerk Thoko MdakaWe use community psychology's accent on methodological pluralism and giving voice to the marginalised as a platform to critically examine the utility and outcome of photography as a data collection and community engagement method. Accordingly we focus on two community... -
Exploring the Application of Actuarial Criminology in Southern Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- University of South Africa, Anastasios Ladikos --- University of South Africa,In response to the declared intent of the White Paper on Corrections (Department of Corrections, 2005) to transform prisons into needs-based centers of reform, the Self-appraisal Questionnaire (SAQ) was used to explore its potential as a reliable and valid prediction... -
Relationships among Leisure, Social Self-Image, Peer Pressure and At-Risk Behaviours of Adolescents in Nigeria
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Alfred A. Adegoke --- University of Ilorin, Nigeria Christiana A. Ayoade --- University of Ilorin, NigeriaThis study investigated the relationships among leisure, social self image, peer pressure and at-risk behaviours of adolescents in Nigeria. It also examined the moderating roles of gender, age, and locale and school type on measured relationships. A total of 1,141... -
The Role of Schools in Building the Resilience of Youth Faced with Adversity
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Bridget Johnson --- University of Western Cape, South Africa Sandy Lazarus --- University of Western Cape, South AfricaThis study explored factors related to risk, resilience and health amongst South African teenagers. Grade nine students (N = 472; males = 210, females = 262, age range = 12 to 18 years) at seven schools in the Western Cape... -
Bullying at Rural High Schools in the Eastern Cape Province, South Africa: Prevalence, and Risk and Protective Factors at School and in the Family
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: L. Nomfundo Mlisa --- University of Fort Hare, South Africa Catherine L. Ward --- Human Sciences Research Council, South Africa Alan J. Flisher --- University of Cape Town, South Africa Carl J. Lombard --- Medical Research Council, South AfricaThis study examined bullying and risk and protective factors in school and family domains, in a sample of 1,565 Grade 11 students in 41 high schools in two rural school districts in South Africa. The questionnaire included two questions to... -
The Value of Social Representations Theory in Understanding Perceptions Regarding HIV/AIDS
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lynlee Howard-Paynea --- University of the Witwatersrand, Peace Kiguwa --- University of the Witwatersrand,This study investigated the extent to which individuals experience ideologic strain from identifying with members in their in-group and its shared representation of HIV. 200 students from a large South African University completed a HIV Knowledge, Perceptions & Practices survey... -
Perceptions of High-risk Sex Among Men and Women Attending an STI Clinic in Cape Town, South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kelvin Mwaba --- University of the Western Cape, Leickness C. Simbayi --- Human Sciences Research Council, Seth C. Kalichman --- University of Connecticut,The widespread occurrence of sexually transmitted infections (STI's) among young adults in South Africa suggests that there is a need to increase safe sex practices among those who are sexually active. Given the high rate of HIV infection in the... -
Screening and Brief Advice for Risky Substance Users among Charismatic and Main Stream Churches in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council & University of the Free State,The aim of the study was to investigate screening and brief advice for risky substance users among charismatic and main stream churches in South Africa. The sample included 117 clergy (63 from charismatic and 54 from mainstream churches) chosen randomly... -
A Prospective Model for HIV and AIDS Prevention in an African Setting
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Clvin Gwandure --- Nelson Mandela Metropolitan University, South Africa Thokozile Mayekiso --- Nelson Mandela Metropolitan University, South Africa Diane Elkonin --- Nelson Mandela Metropolitan University, South AfricaThe study conceptualizes locus of control as a behavioural mechanism for HIV and AIDS prevention. The locus of control variables that could build the model are: social systems control, self-control, fatalism, achievement-oriented behaviour, willingness to delay gratification, personal values and... -
Self-reported Diabetes Prevalence and Risk factors in South Africa: Results from the World Health Survey
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council, South AfricaUsing the data from the South African World Health Survey (WHS), the current study aims to assess the self-reported prevalence of diabetes and associated risk factors by socio-economic characteristics in South Africa. A population-based survey of 2314 participants (1116 men... -
Intimate Partner Violence and HIV Risk among Women in Primary Health Care Delivery Services in a South African Setting
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nancy Phaswana-Mafuya --- Human Sciences Research Council, South Africa Karl Peltzer --- Human Sciences Research Council University of Free State, South Africa Adlai Davids --- Human Sciences Research Council, South AfricaThe aim of the study is to investigate intimate partner violence (IPV) and HIV risk among antenatal care attendees at primary care health care facilities in a South African setting. A convenient sample of 984 pregnant women (mean age of... -
Lay Counsellor-Based Risk Reduction Intervention with HIV Negative Diagnosed Patients at HIV Counselling and Testing Sites in a Rural South African Setting
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council, South Africa, University of the Free State, South Africa Cily Tabane --- Human Sciences Research Council, South Africa Gladys Matseke --- Human Sciences Research Council, South Africa Leickness Simbayi --- Human Sciences Research Council, South AfricaThe study evaluated the feasibility, fidelity, and effectiveness of a human immunodeficiency virus (HIV) prevention intervention delivered to HIV-uninfected patients by lay counsellors during routine HIV counselling and testing (HCT) service in Mpumalanga, South Africa. Participants were 543 HIV negative... -
Sexual Behaviour of High School Students in Two Rural South African Communities
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lauren G. Wild --- University of Cape Town, South Africa Alan J. Flisher --- University of Cape Town, South Africa Carl F. Lombard --- Medical Research Council, South AfricaThis study investigated the prevalence and correlates of sexual risk behaviour among high school students in two rural settings in the Eastern Cape, South Africa, using a cross-sectional survey design. One thousand six hundred and thirteen randomly-selected adolescents (58% female)... -
Resilience and Career Counseling: Describing the Utility of Quadrant Mapping
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Liesel Ebersöhn --- University of Pretoria,This article describes the manner in which educational psychology students (n = 11 females) used quadrant mapping when doing career counseling with Grade 9 youths (n=88, 47 = male, 41 = female) in a rural secondary school in South Africa... -
Perceptions of Staffriding in Post-Apartheid South Africa: The Lethal Thrill of Speed or the Masculine Performance of a Painful Past?
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Dimakatso Sedite --- University of South Africa, Brett Bowman --- University of the Witwatersrand, Lindsay Clowes --- University of the Western Cape,Staffriding, or train surfing, involves taking life threatening physical risks by moving around the outside of moving trains. In aiming to better understand this risky practice, this small scale qualitative study used three semi-structured interviews and three focus discussions to... -
Exploring the Intersecting Health Risks of Substance Abuse, Sexual Risk, and Violence for Female South African Teen Dropouts
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kyla Marie Sawyer-Kurian --- North Carolina Central University, USA Felicia A. Browne --- RTI International, USA Tara Carney --- Medical Research Council, South Africa Petal Petersen --- Medical Research Council, South Africa Wendee M. Wechsberg --- RTI International, USAThe study sought to better understand the cultural contexts of the risks for adolescent females who have dropped out of school. Focus groups were conducted with 37 Black and Coloured females aged 13 to 17 in Cape Town, South Africa... -
Experiences of Father Absence Adolescents from a South African Community
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Toni Sylvester --- University of the Western Cape, South Africa Olaniyi Bojuwoye --- University of the Western Cape, South AfricaThe study adopted interpretive/constructivist approach to examine father absence experience in teenage South African boys. Ten adolescent boys (with mean age of 15 years) from an impoverish suburb of Cape Town participated in the study. Mixed method data collection techniques... -
An Evaluation of the Reliability and Validity of the Self-Appraisal Questionnaire (SAQ) in South African Context
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- University of South Africa, Ann-Mari Hesselink --- University of South Africa,The Self-Appraisal Questionnaire (SAQ: Loza, 2005) is a self-report questionnaire designed to assist with the prediction of violent and nonviolent recidivism among correctional populations. Use of scale could help in the assessment of risk and the identification of factors that... -
Sex Offender Assessment Procedures: A South African Comparison
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Anni Hesselink --- University of South Africa, Johan Prinsloo --- University of South Africa,This study reports on the results of a reflective case analysis of a first generation assessment procedure of a chronic offender. The assessment focused on offender's experiential world and his pathway to crime, including precipitating crime risk factors as well... -
Childhood Exposure to Community and Domestic Violence: Prevalence, Risk Factors and Posttraumatic Outcomes in a South African Student Sample
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Steven J. Collings --- University of KwaZulu-Natal, South AfricaThe effects of exposure to direct and vicarious community and domestic violence on the posttraumatic adjustment of 323 South African students were examined. Data were collected using self-administered questionnaires, with the relationship between exposure to violence and posttraumatic outcomes being... -
Risk Factors for Educator-Targeted Bullying: A Social-Ecological Perspective
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Corene de Wet --- University of the Free State, South AfricaThis study investigated educator-targeted bullying (ETB) in a South African school setting from a social-ecological perspective. Seven survivors of ETB were interviewed using open ended questions. The data were content analysed for themes. The main findings of the study were:... -
Health and Psychosocial Wellbeing of Caregivers and Households of Orphans and Vulnerable Children (OVC) from a Low-Income South African Community
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mambwe Kasese-Hara --- University of the Witwatersrand, South Africa Mzikazi Nduna --- University of the Witwatersrand, South Africa Misheck Ndebele --- University of the Witwatersrand, South Africa Noleen Pillay --- University of the Witwatersrand, South AfricaThis study reports on the health and psychosocial wellbeing of caregivers of orphans and vulnerable children (OVC) and members of their households in a low-income South African community. Participants were 54 guardians of OVC registered to receive support at the... -
Offenders with Mental Disorders in a South African Prison Population: Profiling the Behavioural Characteristics on Mental Illness
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- University of South Africa,This study validates a protocol to identify inmates with institutional adjustment difficulty from mental disorder, and who might have a need for therapeutic programming of a cognitive nature. The Self-Appraisal Questionnaire (SAQ) was administered to a total of 236 South... -
Depression and Associated Factors Among University Students in Western Nigeria
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council, South Africa Supa Pengpid --- University of Limpopo, South Africa Sola Olowu --- Obafemi Awolowo University, Nigeria Matthew Olasupo --- Obafemi Awolowo University, NigeriaThe aim of this study was to determine the associations between depression, sociodemographic, social and health variables among undergraduate students of Obafemi Awolowo University in Nigeria. A cross-sectional survey was conducted with undergraduate students that were recruited randomly from classes... -
Categories of Human Risk Factors Which Impact on the Psychological Fitness of Construction Workers: A Review of the Evidence
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Larisa Alet Louw --- University of South Africa, Pieter Schaap --- University of Pretoria,This systematic review sought to identify and examine the evidence on human factors which impact on the psychological fitness of construction workers. Studies were reviewed spanning the period from 1966 to 2012. Database searches included 135 ScienceDirect and EBSCOHost sources,... -
Sex during genital bleeding and risks for HIV infection: preliminary study of sexually transmitted infection clinic patients in Cape Town, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: SethC Kalichman LeicknessC SimbayiPracticing sexual intercourse in the presence of blood is a potentially important factor in facilitating HIV transmission. In the current study 149 men and 78 women receiving diagnostic and treatment services for repeated sexually transmitted infections (STI) in Cape Town,... -
Knowing but not knowing: providing maternity care in the context of HIV/AIDS in rural Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Thubelihle Mathole Gunilla Lindmark Beth Maina AhlbergIndividual interviews with 25 nurses and midwives revealed their experiences with providing maternity care in rural Zimbabwe. These first-hand accounts especially illuminate the complexities of providing maternity care in the context of HIV/AIDS. The caregivers described feeling troubled by knowing... -
Intrapartum practices to limit vertical transmission of HIV
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Antoinette du Preez Engela du Plessis Abel PienaarThe need to improve health services to HIV-positive women requires a specific focus on limiting mother-to-child transmission. Vertical transmission most often takes place during the intrapartum period; hence, it is essential to alert midwives to what constitutes safe or risky... -
Zambian male adolescents' perceptions about premarital sexual relationships
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Elisabeth Dahlbäck Patrick Makelele C Bawa Yamba Staffan Bergström Anna-Berit Ransjö-ArvidsonThe role adolescent boys play in premarital sexual activities, gender power relations, and the reproductive health risks they are exposed to, has received little attention in research. This qualitative study has aimed to explore Zambian male adolescents' perceptions and expectations... -
Youth's perceptions of HIV infection risk: a sex-specific test of two risk models
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Yetunde ShoboThe study examines the associations between the cumulative and additive risk models and Nigerian youth's likelihood of perceiving vulnerability to HIV infection. Both models of risk seem to provide unique contributions to such understanding. The analysis is based on data... -
Modelling the relationship between antiretroviral treatment and HIV prevention: limitations of the Spectrum AIDS Impact Model in a changing policy environment
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nicoli NattrassThis paper shows how two publicly available epidemiological modelling packages, namely the Spectrum AIDS Impact Model and the ASSA2003 AIDS and Demographic Model, predict very different impacts from rolling out highly active antiretroviral treatment (HAART) on new HIV infections. Using... -
Knowledge of HIV/AIDS, sexual behaviour and prevalence of sexually transmitted infections among female students of the University of Buea, Cameroon
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Theresa Nkuo-Akenji Armand Nkwesheu Raymond Nyasa Esther Tallah Roland Ndip Fru Angwafo IiiThe study investigates the cognitive effect of knowledge and protective practices on the prevalence of HIV and some sexually transmitted infections (STIs) among female students of the University of Buea, Cameroon. A cross-sectional study involving the analysis of a questionnaire... -
Misconceptions about HIV prevention and transmission in Botswana
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gobopamang LetamoMisconceptions about how HIV can be transmitted or prevented often prevent individuals from making informed choices and taking appropriate action. The purpose of the research was to explore the socio-demographic and behavioural factors in Botswana that are associated with misconceptions... -
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... -
Kissing the cobra: Sexuality and high risk in a generalised epidemic—a case study of White university students
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Tessa Marcus --- , South AfricaThis paper explores the social factors that may account for the way the HIV-AIDS epidemic is unfolding in a racially segmented and socially differentiated society. As a sexually transmitted infectious disease that particularly infects adolescents and decimates young adults, there... -
Understanding self-appraisal of HIV-infection risk among young adults in Nigeria: evidence from a national survey
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Samson Babatunde Adebayo --- , Nigeria Jennifer Anyanti --- , Nigeria Augustine Ankomah --- , Kenya Godpower Omoregie --- , Nigeria Fatima Mamman-Daura --- , NigeriaA major component of HIV prevention is to encourage individuals to appreciate their personal risk of contracting the virus with the aim of encouraging them to take steps to reduce the risks. This article addresses the accuracy of an individual's... -
Understanding the experiences of doctors who undertake elective surgery on HIV/AIDS patients in an area of high incidence in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jacqueline Gwala-Ngozo --- Department of Public Health Medicine, Nelson R. Mandela School of Medicine, South Africa Myra Taylor --- Department of Public Health Medicine, Nelson R. Mandela School of Medicine, South Africa Colleen Aldous --- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R. Mandela School of Medicine, South AfricaThis study investigates the experiences of doctors who perform elective surgical procedures in an area of South Africa with a high incidence of HIV and AIDS. A qualitative study approach was adopted. Interviews were individually conducted with 15 doctors. The... -
South Africa youths’ higher-risk sexual behaviour: an eco-developmental analysis
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Monde Makiwane --- Child, Youth, Family and Social Development, South Africa Zitha Mokomane --- Child, Youth, Family and Social Development, South AfricaDespite their high levels of knowledge about HIV and AIDS, young people ages 15–24 years in South Africa remain disproportionately affected by the epidemic. Young people's continued susceptibility to HIV infection has been consistently linked to intractable higher-risk sexual behaviours... -
Deafness and HIV/AIDS: a systematic review of the literature
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jill Hanass-Hancock --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Loveness Satande --- Health Economics and HIV/AIDS Research Division (HEARD), South AfricaA systematic review of the literature focused on empirical work on deafness and HIV/AIDS published during the past decade. The review reveals that deaf people are vulnerable to contracting HIV and might lack access to HIV/ AIDS information, testing and... -
Determinants of age at sexual debut and associated risks among South African youths
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Khangelani Zuma --- , South Africa Thembile Mzolo --- , South Africa Elias Makonko --- , South AfricaThe research uses data from a representative national survey to explore the determinants of age at sexual debut among South African youths in the age group 15–24 years. A random sample of 5 708 youths were interviewed and 92% responded... -
Sexual-risk behaviour among sexually active first-year students at the University of the Western Cape, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Melissa D Abels --- Department of Statistics, South Africa Renette J Blignaut --- Department of Statistics, South AfricaIn South Africa, new HIV infections are concentrated among persons aged 15–24 years. The university population falls within this age group and are prone to higher-risk behaviours that place them at risk of acquiring HIV. In a study to assess... -
An exploratory study of HIV-prevention advocacy by persons in HIV care in Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Christopher Tumwine --- , Uganda Annet Nannungi --- , Uganda Eric Ssegujja --- , Uganda Nicolate Nekesa --- , Uganda Sarah Ssali --- , Uganda Lynn Atuyambe --- , Uganda Gery Ryan --- , United States Glenn Wagner --- , United StatesTo explore how people living with HIV (PLHIV) and in care encourage others to adopt HIV-protective behaviours, we conducted in-depth interviews with a purposive sample of 40 HIV clinic patients in Kampala, Uganda. Content analysis was used to examine the... -
Adolescents’ perceptions of sexual coercion in Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ruth Birungi --- , Uganda Dennis Nabembezi --- , Uganda Julius Kiwanuka --- , Uganda Michele Ybarra --- , United States Sheana Bull --- Department of Community and Behavioral Health, United StatesIn Uganda, HIV prevalence remains high with young people at higher risk of infection than adults. Much is known about the sexual risk factors for HIV transmission among youths, including sexual encounters that are coerced. On the other hand, relatively... -
AIDS fatigue and university students’ talk about HIV risk
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Tamara Shefer --- Women's and Gender Studies, South Africa Anna Strebel --- Women's and Gender Studies, South Africa Joachim Jacobs --- HIV/AIDS Programme, South AfricaDrawing on a qualitative study that included 20 focus group discussions with male and female students at an urban-based university in South Africa, this article reports on perceptions, attitudes and reported behaviour with respect to HIV and AIDS and safer... -
Perceptions of educators of Deaf and hard-of-hearing adolescents of HIV-risk factors for these youths
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sumaya Mall --- Department of Psychology, South Africa Leslie Swartz --- Department of Psychology, South AfricaLike the general population in South Africa, adolescents with deafness or who are hard-of-hearing may be vulnerable to HIV infection. They are exposed to all known risk factors for HIV infection. Educators who work in schools for Deaf (meaning culturally... -
An exploratory study of the individual determinants of students’ sexual risk behaviour at a South African university
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Given Mutinta --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Kaymarlin Govender --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Jeff Gow --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Gavin George --- Health Economics and HIV/AIDS Research Division (HEARD), South AfricaThe prevalence of sexual risk behaviour is high on campuses at South African universities, putting many students at risk of HIV infection. This study explores individual influences on students’ sexual risk-taking behaviour at the University of KwaZulu-Natal. The study collected... -
HIV testing is associated with increased knowledge and reductions in sexual risk behaviours among men in Cape Town, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lori AJ Scott-Sheldon --- Centers for Behavioral and Preventive Medicine, USA Michael P Carey --- Centers for Behavioral and Preventive Medicine, USA Kate B Carey --- Department of Behavioral and Social Sciences, School of Public Health, USA Demetria Cain --- Department of Psychology, USA Leickness C Simbayi --- Human Sciences Research Council, South Africa Vuyelwa Mehlomakhulu --- Human Sciences Research Council, South Africa Seth C Kalichman --- Department of Psychology, USAHIV testing benefits those who test positive, allowing them to receive treatment, but the benefits for those who test negative remain controversial. We evaluated the impact of testing on HIV knowledge and sexual risk among men in South Africa. Men... -
‘Something for something’: The importance of talking about transactional sex with youth in South Africa using a resilience-based approach
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ingrid van der Heijden --- Gender and Health Research Unit, South Africa Sharlene Swartz --- Human Sciences Research Council, South AfricaTransactional sex is a common feature of sexual relationships in South Africa but has severe health implications for those who engage in it. This paper presents perspectives on transactional sex based on interviews and focus group discussions with young people... -
Correlates of sexual activity versus non-activity of incoming first-year students at a South African university
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Renette J Blignaut --- Department of Statistics and Population Studies, Tania Vergnani --- Department of Statistics and Population Studies, Joachim J Jacobs --- Department of Statistics and Population Studies,In order to contribute to the design of more effective programmes to curb the spread of HIV at tertiary institutions, this study compares the profile of students who are sexually active versus those who are not yet sexually active when... -
Physical determinants of the distribution and abundance of the burrowing ocypodid crab Paratylodiplax blephariskios Stebbing in the St. Lucia and Mhlathuze estuaries, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RK Owen AT Forbes DP Cyrus SE PiperThe burrowing ocypodid crab, Paratylodiplax blephariskios, is endemic to the southeast coast of southern Africa where it forms an important component of the estuarine benthic fauna in muddy substrata. Two estuaries in KwaZulu-Natal, namely St. Lucia and the Mhlathuze, were... -
Ecological Risk Assessment in Water Resource Management
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Claassen PW WadeThe US EPA published guidelines for the application of ecological risk assessment (ERA) in the USA in 1998 (US EPA 1998). The process diagram derived by Murray and Claassen (1999) in an evaluation of the US EPA framework is discussed... -
Salinity tolerance of the burrowing ocypodid crab, Paratylodiplax blephariskios, in the St. Lucia and Mhlathuze estuaries, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RK Owen --- Department of Zoology, South Africa AT Forbes --- , South AfricaThe ocypodid crab, Paratylodiplax blephariskios, is endemic to the southeast coast of southern Africa where it forms an important component of the estuarine benthic fauna in muddy substrata. The St. Lucia and Mhlathuze estuaries are two of the largest estuaries... -
A short note on factors affecting the geographic distribution of the burrowing ocypodid crab, Paratylodiplax blephariskios: temperature, habitat and competition
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RK Owen --- Department of Zoology, South AfricaThe known distribution of Paratylodiplax blephariskios extends from the Morrumbene estuary in Mozambique to the Mngazana estuary in the Eastern Cape. Laboratory data on the temperature tolerance of P. blephariskios indicated that the crab could survive temperatures between 12.5°C and... -
Pesticides in South African fresh waters
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TM Ansara-Ross --- Centre for Aquatic Research, Department of Zoology, South Africa V Wepener --- Centre for Aquatic Research, Department of Zoology, South Africa PJ van den Brink --- Department of Aquatic Ecology and Water Quality Management, The Netherlands MJ Ross --- Centre for Aquatic Research, Department of Zoology, South AfricaPublic concern has recently escalated over pesticide contamination of South African aquatic ecosystems. This review of published literature on the occurrence of pesticides within South African freshwater systems indicates that fewer than 50 studies of selected pesticides have been undertaken,... -
Limits to the use of environmental indices to reduce risk and/or increase yield in the South African anchovy fishery
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JAA De Oliveira DS ButterworthEnvironmental indices that provide short-term predictions of recruitment have the potential to improve the average yield from highly productive resources that sustain recruit fisheries without an associated increase in risk (of resource 'collapse'). This is particularly true for cases where... -
Toxicological requirements for risk assessment of shellfish contaminants: a review
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R MundayThere is increasing concern by consumers with regard to the health aspects and safety of foodstuffs. Most food additives and contaminants are controlled by regulatory authorities, with Acceptable Daily Intakes (ADIs) having been set on the basis of detailed acute... -
A financial evaluation of two contrasting silvicultural systems applicable to Pinus taeda grown in north-east Uruguay
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: A Bussoni --- Departamento de Ciencias Sociales, Facultad de Agronomía, Uruguay J Cabris --- Departamento de Producción Forestal y Tecnología de la Madera, Facultad de Agronomía, UruguayThe Loblolly pine (Pinus taeda L.) plantation area in north-east Uruguay was 108 000 ha in 2008. Recent industrial capacity developments have resulted in major structural changes. Silvicultural system selection depends on site productivity, costs, timber prices and public policies... -
HIV- and AIDS-related (mis)perceptions and (non)responses of school principals in the Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lesley Wood Paul WebbDespite various HIV and AIDS training programmes offered for educators by the South African Department of Education, little has been achieved at the level of management in terms of creating a wider understanding of the social and cultural complexities of... -
Reasons for multiple sexual partnerships: perspectives of young people in Zambia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Chama Nshindano Pranitha MaharajEpidemiological evidence so far suggests that multiple sexual partnerships are an important factor driving the HIV epidemic. Recently, there has been renewed emphasis on fidelity and partner-reduction in preventing HIV infections. Like many countries in sub-Saharan Africa, Zambia is facing... -
Clinical waste management in the context of the Kanye community home-based care programme, Botswana
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: SimonM Kang'etheThis study examines clinical waste disposal and handling in the context of a community home-based care (CHBC) programme in Kanye, southern Botswana. This qualitative study involved 10 focus group discussions with a total of 82 HIV/AIDS primary caregivers in Kanye,... -
Conceptions of mental health among Ugandan youth orphaned by AIDS
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Sheila Harms Ruth Kizza Joshua Sebunnya Susan JackThe AIDS epidemic has disproportionately affected developing or low-income sub-Saharan African countries. Within the context of the epidemic, children and youth are at risk of losing their parents at an early age. The experience of orphanhood due to AIDS has... -
Exploring the relationship between HIV and alcohol use in a remote Namibian mining community
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Elizabeth Lightfoot --- School of Social Work, United States Maretha Maree --- Department of Human Science, Namibia Janet Ananias --- Department of Human Science, NamibiaIn southern Africa, the use of alcohol is increasingly seen as creating a context of risk for HIV transmission. This qualitative study investigates the links between alcohol use and higher-risk sexual behaviours in a remote southern Namibian mining-town community. Using... -
Sexual networks and social capital: multiple and concurrent sexual partnerships as a rational response to unstable social networks
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Robert Thornton --- Department of Anthropology, South AfricaMultiple and concurrent sexual partnerships (MCP) are prevalent in southern Africa and have been identified as a primary cause of high HIV prevalence in this region. Sexual liaisons with multiple partners serve to increase the size and diversity of an... -
Rural black women's agency within intimate partnerships amid the South African HIV epidemic
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Britta Thege --- Department of Sociology, South AfricaIn a particular way, the HIV pandemic exposes the prevailing gender relations and the definitions of male and female gender roles, both in intimate relationships and in the wider society. The HIV pandemic reveals the contradictions between women's legal rights... -
Notes on Cuntz-Krieger uniqueness theorems and C*-algebras of labelled graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bernhard BurgstallerIn this note we deal with Cuntz-Krieger uniqueness theorems and extend the class of algebras introduced in [3]. We use this analysis to show two Cuntz-Krieger uniqueness theorems for C*-algebras of labelled graphs. -
Obesity in women—a life cycle of medical risk
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: M-T Van der Merwe --- Netcare Bariatric Centers of Excellence,Obesity can have an impact on health at each stage of a woman's life cycle. In young women, obesity has an impact on psychosocial health and, as they grow older, on their reproductive health. Obesity also imposes a number of... -
Enzymatic and genetic polymorphisms of paraoxonase-1 in the Gabonese population: the relation to lipid parameters in patients with diabetes
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: FA Abessolo --- Department of Chemistry and Biochemistry, Faculty of Medicine, Gabon MJ Bruno --- Department of Cardiology, Hospital Centre of Libreville, Gabon MA N'negue --- Department of Chemistry and Biochemistry, Faculty of Medicine, Gabon M Yangou --- Department of Chemistry and Biochemistry, Faculty of Medicine, Gabon E Ngou-Milama --- Department of Chemistry and Biochemistry, Faculty of Medicine, GabonBackground: The objective was to study the relationship between the paraoxonase-1 activity, genetic polymorphisms and lipid parameters in a black patient population. -
Preventative foot care in people with diabetes: Quality patient education
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Janse G van Rensburg --- Centre for Diabetes and Endocrinology,Foot ulceration and amputation cause extensive burden on individuals and health care systems. One of the reasons for the poor outcome of foot complications in developing countries is the lack of patient education. Due to the multi-factorial pathology of diabetic... -
The implementation of guidelines in a South African population with type 2 diabetes
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Y Pinchevsky --- Department of Pharmacy and Pharmacology, N Butkow --- Department of Pharmacy and Pharmacology, FJ Raal --- Division of Endocrinology and Metabolism, Faculty of Health Sciences, T Chirwa --- Division of Epidemiology and Biostatistics,Objective: The aim of this study was to identify the treatment gaps that pertain to risk factors in South African patients with type 2 diabetes mellitus, using national treatment guidelines. -
A modern look at hypertension and anaesthesia
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: MFM James --- Department of Anaesthesia, RA Dyer --- Department of Anaesthesia, BL Rayner --- Departments of Anaesthesia and Medicine,Hypertension is common among patients presenting for surgery, and is frequently untreated or inadequately treated. While the approach to the patient with hypertension presenting for anaesthesia is controversial, and the evidence base for appropriate clinical decisions is weak, this is... -
The role of biomarkers and B-type natriuretic peptide in diagnosis and perioperative risk prediction
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: N Afshani --- Department of Anaesthesia, BM Biccard --- Department of Anaesthetics, RA Dyer --- Department of Anaesthesia,Biomarkers are important in diagnosis, assessment of disease severity, risk stratification and therapeutic decision-making. Recent studies strongly suggest that there is a role for B-type natriuretic peptide (BtNP) as a powerful prognostic predictor in both the preoperative and postoperative setting... -
The benefits and risks of vasoactive agents
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: RP Von Rahden --- Clinical Unit; Department of Anaesthesia,Current shock resuscitation strategies require titration of fluid in combination with inotropes and vasopressors to counteract the actual pattern of circulatory abnormality in the patient, and to restore the circulation to a level that is adequate to prevent organ ischaemia... -
Intraoperative point-of-care testing
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: RP Von Rahden --- Clinical Unit; Department of Anaesthesia,Point-of-care devices offer an increasing number of analytical tests more quickly than laboratory analysis, but clinicians must be aware of the limitations of these devices, especially for critical threshold-level decisions. Glucometers are susceptible to a wide range of errors, and... -
Preoperative B-type natriuretic peptide risk stratification: do postoperative indices add value?
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: RN Rodseth --- Perioperative Research Group, Department of Anaesthetics, K Vasconcellos --- Department of Anaesthetics and Critical Care, P Naidoo --- National Health Laboratory Services; Department of Chemical Pathology, BM Biccard --- Perioperative Research Group, Department of Anaesthetics,Objectives: It is unclear if there is value in measuring postoperative B-type natriuretic peptide (BNP) in patients risk-stratified using preoperative BNP. -
Strategies for the Prevention and Containment of Antibiotic Resistance
Item type: Journal Article • Journal: South African Family Practice • Authors: SY Essack --- School of Pharmacy and Pharmacology, University of Kwazulu-Natal,Antibiotic resistance may emerge by antibiotic selection pressure but is perpetuated by diverse risk factors and maintained within environments as a result of poor infection control. Population-specific drug pharmacokinetics and pharmacodynamics also play a role. The WHO, US, UK and... -
Community perception of traditional circumcision in a sub-region of the Transkei, Eastern Cape, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: BL Meel --- Department of Forensic Medicine, Faculty of Health Sciences,The ritual of traditional male circumcisions (initiation) of young adults goes back generations among Xhosa people of South Africa. Xhosa tribe is committed to preserving the old cultural traditions. Recently, this ritual has been tarnished by serious complications that have... -
Smokeless tobacco: is it really safe?
Item type: Journal Article • Journal: South African Family Practice • Authors: OB Omole --- Department of Family Medicine, GA Ogunbanjo --- Department of Family Medicine and PHC,Antismoking campaigns and government legislation have resulted in a decline in smoking. However, the use of smokeless tobacco (SLT) is on the increase. Smokeless tobacco is non-smoked tobacco used either intranasally or intraorally. The increase in its use is possibly... -
Health risk behaviours of high school learners and their perceptions of preventive services offered by general practitioners
Item type: Journal Article • Journal: South African Family Practice • Authors: C Thomas --- Private Practice and Department of Family Medicine,Background: Adolescence spans nearly a decade in which young people may initiate health risk behaviours such as unsafe sexual practices and the use of alcohol, tobacco and other drugs (ATOD use). Most adolescent mortality and morbidity, attributable to such health... -
Prevalence of diabetes mellitus in the rural southern Free State
Item type: Journal Article • Journal: South African Family Practice • Authors: AJ Groenewald --- Department of Chemical Pathology, Faculty of Health Sciences, HJ van Wyk --- Department of Chemical Pathology, Faculty of Health Sciences, CM Walsh --- Department of Nutrition and Dietetics, Faculty of Health Sciences, S van Zyl --- Department of Basic Medical Sciences, Faculty of Health Sciences, LJ van der Merwe --- Department of Basic Medical Sciences, Faculty of Health Sciences,Background: A worldwide increase in the prevalence of diabetes mellitus (DM) has been reported and an even further increase is expected as a result of lifestyle changes. The objectives of this study were to determine the prevalence of DM in... -
Current approach to diagnosis and management of osteoarthritis
Item type: Journal Article • Journal: South African Family Practice • Authors: C Ickinger --- Division of Rheumatology, M Tikly --- Division of Rheumatology,Osteoarthritis (OA) is a common chronic degenerative joint disorder and a major cause of pain and disability, especially in the elderly. The prevalence is steadily rising due to an increase in life expectancy and certain lifestyle factors. OA is a... -
Cardiovascular risk assessment
Item type: Journal Article • Journal: South African Family Practice • Authors: DJ Blom --- Division of Lipidology, Department of Medicine, South AfricaCardiovascular disease remains the leading cause of mortality in the Westernised world. Lifestyle changes and drug therapy can reduce cardiovascular risk. Many interventions such as lipid-lowering therapy reduce relative risk to the same extent irrespective of baseline risk, but the... -
A risk-factor profile for chronic lifestyle diseases in three rural Free State towns
Item type: Journal Article • Journal: South African Family Practice • Authors: S van Zyl --- Department of Basic Medical Sciences, Faculty of Health Sciences, South Africa LJ van der Merwe --- Department of Basic Medical Sciences, Faculty of Health Sciences, South Africa CM Walsh --- Department of Nutrition and Dietetics, Faculty of Health Sciences, South Africa FC van Rooyen --- Department of Biostatistics, Faculty of Health Sciences, South Africa HJ van Wyk --- Department of Chemical Pathology, Faculty of Health Sciences, South Africa AJ Groenewald --- Department of Chemical Pathology, Faculty of Health Sciences, South AfricaBackground: Chronic diseases of lifestyle account for millions of deaths each year globally. These diseases share similar modifiable risk factors, including hypertension, tobacco smoking, diabetes, obesity, hyperlipidaemia and physical inactivity. In South Africa the burden of noncommunicable disease risk factors... -
Respiratory risk assessment prior to extrathoracic surgery
Item type: Journal Article • Journal: South African Family Practice • Authors: PF Aucamp --- Department of Internal Medicine, Faculty of Health Sciences, M Prins --- Department of Internal Medicine, Faculty of Health Sciences,Physicians are often asked to evaluate a patient prior to elective surgery for the purpose of risk identification and modification. Postoperative pulmonary complications are the most costly of the major postoperative medical complications, including cardiac, thromboembolic and infectious, and result... -
Uptake of genetic counselling services by patients with cystic fibrosis and their families
Item type: Journal Article • Journal: South African Family Practice • Authors: S Macaulay --- Division of Human Genetics, N Gregersen --- Division of Human Genetics, A Krause --- Division of Human Genetics,Background: Although cystic fibrosis (CF) is a common genetic condition, genetic counselling services appear to be underutilised by affected families. The aim of this study was to determine the uptake of genetic counselling and mutation testing for CF by relatives... -
Cardiovascular risk calculation
Item type: Journal Article • Journal: South African Family Practice • Authors: James A. Ker --- Department of Internal Medicine,Cardiovascular disease remains a major cause of global mortality and morbidity. Atherosclerosis is the main underlying cause in the majority of cardiovascular disease events. Traditional independent risk factors for cardiovascular disease include age, abnormal lipid levels, elevated blood pressure, smoking... -
Current approach to diagnosis and management of osteoarthritis
Item type: Journal Article • Journal: South African Family Practice • Authors: C Ickinger --- Division of Rheumatology, M Tikly --- Division of Rheumatology,Osteoarthritis (OA) is a common chronic degenerative joint disorder and a major cause of pain and disability, especially in the elderly. The prevalence is steadily rising due to an increase in life expectancy and certain lifestyle factors. OA is a... -
Implementing an Operational Risk Management Framework: Psycho-Social Factors in Tanzania
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Annelize van Niekerk --- University of South Africa, South Africa Dirk J Geldenhuys --- University of South Africa, South Africa Madia M Levin --- University of South Africa, South Africa Michelle May --- University of South Africa, South Africa K.P. Moalusi --- University of South Africa, South AfricaThis qualitative study explored the psychosocial factors that affect the implementation of an operational risk management framework in a financial institution in Tanzania. A purposive sample of 39 participants from three financial institutions was interviewed using semistructured interviews. The data... -
The implementation of guidelines in a South African population with type 2 diabetes
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Y Pinchevsky --- Department of Pharmacy and Pharmacology, N Butkow --- Department of Pharmacy and Pharmacology, FJ Raal --- Division of Endocrinology and Metabolism, Faculty of Health Sciences, T Chirwa --- Division of Epidemiology and Biostatistics,Objective: The aim of this study was to identify the treatment gaps that pertain to risk factors in South African patients with type 2 diabetes mellitus, using national treatment guidelines. -
HIV risk after release from prison: a pilot case-control study in Canada, France, Ivory Coast and South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Evelyne Vallières --- LICEF, Canada Karl Peltzer --- Human Sciences Research Council, South Africa Rémi Dongo Kouabenan --- Université Pierre Mendès France, France Denis Dagou Koménan --- Université Félix Houphouët-Boigny Cocody, Ivory Coast Sid Abdellaoui --- Université de Paris, France François Joseph Azoh --- École normale supérieure, Ivory Coast Pierre McDuff --- Université de Montréal, Canada Jacques Bergeron --- Université de Montréal, Canada Safiétou MBaye --- Électricité de France (EDF), FranceThis study aimed to assess HIV knowledge, risk perception and risk behaviour of ex-offenders at risk of new infection and to compare them with the general population. A case-control interview study was conducted with conveniently sampled ex-offenders and persons with... -
Exploring risk and protective mechanisms associated with HIV infection among adolescents in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Pamela Naidoo --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Geri Donenberg --- Department of Medicine, United States Alicia Davids --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Kim Jonas --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Redwaan Vermaak --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Leickness Simbayi --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Ashraf Kagee --- Department of Psychology, South Africa Catherine Ward --- Department of Psychology, South Africa Erin Emersen --- Department of Medicine, United StatesThis study explored South African adolescents’ perceived risk and protection for HIV infection. Adolescents (N=28) with a mean age of 14.6 years receiving mental health care participated in Focus Group Discussions (FGDs) to engage in an in-depth exploration of their... -
Sexual orientation and HIV risk among youth in South Africa: a brief report
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Human Sciences Research Council, South AfricaThis study investigated the prevalence of homosexual orientation and HIV risk in a population-based survey among youth in South Africa. A cross-sectional population-based household survey was conducted using a multi-stage stratified cluster sampling approach. The total sample included 1859 sexually... -
Perceptions of alcohol risk among people on antiretroviral treatment in South Africa: a qualitative study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- University of Limpopo, Turfloop Campus, South Africa Karl Peltzer --- University of Limpopo, Turfloop Campus, South AfricaThis study explored perceptions of alcohol abuse risk among people on antiretroviral treatment (ART) who self-identified as alcohol users. Twenty six people receiving ART from an out-patient setting were interviewed on their alcohol abuse risk perception. Data were thematically analysed... -
A modern look at hypertension and anaesthesia
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: MFM James --- Department of Anaesthesia, RA Dyer --- Department of Anaesthesia, BL Rayner --- Departments of Anaesthesia and Medicine,Hypertension is common among patients presenting for surgery, and is frequently untreated or inadequately treated. While the approach to the patient with hypertension presenting for anaesthesia is controversial, and the evidence base for appropriate clinical decisions is weak, this is... -
Fever in children: how to minimise risk and provide appropriate therapy
Item type: Journal Article • Journal: South African Family Practice • Authors: Robin J Green --- Department of Paediatrics and Child Health, South Africa Adéle Pentz --- Department of Paediatrics and Child Health, South AfricaThe management of fever in children is a subject that garners many different opinions and interventions. Various approaches seem to be acceptable, from the physician who never uses antipyretic medication, to the use of multiple combination therapies. Following the recent... -
The influence of biological factors on students’ sexual behaviour at the University of KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Given Mutinta --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Kaymarlin Govender --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Gavin George --- Health Economics and HIV/AIDS Research Division (HEARD), South Africa Jeff Gow --- Health Economics and HIV/AIDS Research Division (HEARD), South AfricaStudies in South African universities reveal that the prevalence of sexual risk behaviour is very high, putting many students at high risk of HIV infection. This study explored the biological influences on students’ sexual taking behaviour at the University of... -
Practice of sumo kodhi among the Luo and implications for HIV transmission in western Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Charles Omondi Olang'o --- Sociology and Anthropology, Kenya Erick Nyambedha --- Sociology and Anthropology, Kenya Jens Aagaard-Hansen --- Steno Health Promotion Center, DenmarkThis paper discusses the practice of sumo kodhi among the Luo ethnic group and its implications for spread of HIV in western Kenya. Sumo kodhi is a practice in which a woman arranges to have sex with a man other... -
Behavioural characteristics of offenders with mental health disorders in a South African prison population
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- Department of Criminology & Security Science, South Africa Anni Hesselink --- Department of Criminology & Security Science, South AfricaThis exploratory study profiled behavioural characteristics of a non-random sample of 91 offenders with mental illness in a South African correctional facility. The sample is directly related to diagnosed cases from the correctional psychiatrist's case load. The most prevalent mental... -
Multiple health risk behaviours and posttraumatic stress disorder symptoms among university students from 22 countries
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- ASEAN Institute for Health Development, Mahidol University, Thailand Supa Pengpida --- ASEAN Institute for Health Development, Mahidol University, ThailandThe goal of the study was to investigate multiple health risk behaviours in relation to PTSD symptoms in a sample of university students from 22 countries. Using anonymous questionnaires, data were collected from 16804 undergraduate university students (mean age 20.8,... -
Acacia plantations in Vietnam: research and knowledge application to secure a sustainable future
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: EK Sadanandan Nambiar --- CSIRO Land and Water Flagship, Black Mountain Laboratories, Australia Christopher E Harwood --- CSIRO Land and Water Flagship, Australia Nguyen Duc Kien --- Vietnamese Academy of Forest Sciences, VietnamVietnam has established 1.1 million ha of acacia plantations for wood production, managed on 5- to 10-year rotation cycles. Nearly 50% of the resource is managed by small growers holding 1–5 ha woodlots. Acacia plantations have emerged as an important... -
Characteristics of the alarm calls of buff-streaked chat groups and African stonechat pairs in response to increased distances from surrogate raptors and snakes
Item type: Journal Article • Journal: African Zoology • Authors: N. Seoraj-Pillai --- Department of Nature Conservation, South Africa G. Malan --- Department of Nature Conservation, South AfricaMany animals emit alarm calls in response to a potential predator. These calls may transmit information about predator type and response urgency. This study compared the alarm calls of the social buff-streaked chat, Oenanthe bifasciata, to the asocial African stonechat,... -
Gender and HIV infection in the context of alcoholism in Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nancy Muturi --- AQ Miller School of Journalism and Mass Communications, USAWomen in sub-Saharan Africa account for more than half (58%) of people living with the HIV and it is the only continent where HIV prevalence is higher for women than for men. Studies have attributed alcoholism with the high rates... -
Mental health correlates of HIV risk behaviour and STIs/HIV infection among university students from 22 low, middle and high income countries
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- ASEAN Institute for Health Development, Mahidol University, Thailand Supa Pengpid --- ASEAN Institute for Health Development, Mahidol University, ThailandThe aim of this study was to determine mental health correlates of HIV risk behaviour and self-reported STIs/HIV infection among university students in 22 low, middle and high income countries. Data on mental health and HIV risk were collected from... -
Some evidence on the stability of beta coefficients on the JSE
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: D C Bowie --- Quantitative Consultant at The WM Company, Scotland D J Bradfield --- Department of Statistical Sciences,Knowledge of beta stability is crucial for projections involving the use of beta coefficients, in particular, in the areas of project evaluation and portfolio design. This paper investigates the issue of beta stability on the JSE. The investigation reveals how... -
Price earnings ratios on the Johannesburg Stock Exchange - Are they a guide to value?
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: G D I Barr --- Department of Statistical Science and Economics, B S Kantor --- Department of Economics,This paper tests whether there is an equilibrium relationship between prices and earnings on the Johannesburg Stock Exchange (JSE). Such a relationship would hold if the JSE Index and index earnings were cointegrated, A full explanation of the technique of... -
Extraordinary items: Accounting and market risk
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: J A Miller --- Emeritus Professor in Accounting and Finance,The market reaction to the recurrent reporting of extraordinary items was tested by calculating and comparing the betas for a portfolio of shares that reported extraordinary items in each of the five years 1990 through 1994 and a control portfolio... -
Factors influencing credit assessment
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Ward --- Wits Business School, Graduate School of Business Administration,This study examines the perceptions of credit analysts on which factors determine credit risk. A sample drawn from the major international credit underwriters was used to rank a previously derived set of micro-economic variables in terms of their importance as... -
Uncertainty, cost of capital and financial disclosure: A review of the theory and some evidence
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Negash --- University of the Witwatersrand,This paper contains a critical review of the uncertainty research, and reports on the relationship between corporate disclosure and the adverse selection component of the buy-sell (bid-ask) spread of stock prices. Order processing and holding costs will be decoupled from... -
Market segmentation and the cost of equity of companies listed on the Johannesburg Stock Exchange
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: C Correia --- Department of Accounting, E Uliana --- Department of Accounting,The segmentation between the Resources/Mining and the Financial and Industrial sectors on the Johannesburg stock exchange and the relative historical dominance of the Mining sector in relation to other international markets poses questions about whether the All share data or... -
An investigation into the impact of continuous auditing on the external auditors of the four largest banks in South Africa
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: G Charlton --- Department of Accountancy, B Marx --- Department of Accountancy,With the increasing demands on technology and the increase in the number of transactions processed by organisations, users of financial information require information that is accurate, valid and reliable, but, most importantly, relevant – which means having the information available... -
The corporate use of derivatives: a survey of South Africa’s large listed non-financial firms
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: C Correia --- College of Accounting, G Holman --- Department of Finance and Tax, A Jahreskog --- College of Accounting,This paper presents the results of a comparative questionnaire survey of derivative use by South African companies. The objective was to determine the extent of derivative use and to examine how and why companies use derivatives. Derivative use by South... -
The impact of a quality, technology-enhanced teaching support medium on student success in a first-year financial accounting module at an open distance learning institute
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: H Muller --- Department of Interdisciplinary Research, A du Plessis --- Department of Financial Accounting,In South Africa, the Department of Higher Education and Training (DoHET) has expressed grave concerns about the poor pass rate of first-year accounting students. In an attempt to improve performance, the University of South Africa (Unisa), an open distance learning... -
Fund manager characteristics and performance
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Yi Fang --- Center for Quantitative Economics, China Haiping Wang --- School of Administrative Studies, CanadaThis study establishes a multitier framework to evaluate how fund manager characteristics systematically affect mutual fund performance. The framework includes three tiers of performance elements: comprehensive performance; return and risk; and timing skill and picking ability. Using performance decomposition, our... -
The influence of the NYSE of the risk of JSE stocks
Item type: Journal Article • Journal: De Ratione • Authors: D.J. Bradfield --- University of Cape Town,In this article the influence of the NYSE on the risk of securities on the JSE is investigated. A technique for obtainine. Risk coefficients which capture the sensitivity of securities on the JSE to movements on the NYSE is demonstrated... -
Estimating the Return Parameters of the Capital Asset Pricing Model
Item type: Journal Article • Journal: De Ratione • Authors: Colin Firer --- University of the Witwatersrand,The cost of equity capital is a fundamental concept In the field of finance. Its estimation often relies on the application of the Capital Asset Pricing Model. Very little help is offered to the practitioner in the selection of appropriate... -
A review of the efficiency of the Johannesburg Stock Exchange
Item type: Journal Article • Journal: De Ratione • Authors: Narendra Bhana --- Graduate School of Business University of Durban-Westville Private Bag,In recent years there has been considerable evidence which contradicts the efficient market hypothesis. This evidence is reviewed with particular attention to the JSE, The efficiency of the JSE is evaluated by using an efficiency scale which ranges from perfect... -
Risk on The Johannesburg Stock Exchange
Item type: Journal Article • Journal: De Ratione • Authors: Mike Ward --- Lecturer in Finance and Quantitative Methods Faculty of Management,The Capital Asset Pricing Model (CAPM) provides a parsimonious method for estimating security returns. However, the strong influence of mining shares on the Johannesburg Stock Exchange (JSE) has complicated the use of the CAPM in South Africa and some researchers... -
An assessment of the risk factors for pulmonary tuberculosis among adult patients suffering from human immunodeficiency virus attending the Wellness Clinic at Themba Hospital
Item type: Journal Article • Journal: South African Family Practice • Authors: Felix Alberto Herrera Rodriguez --- Medical Department, South Africa Samuel Onoja Agbo --- Family Medicine department, South AfricaBackground: In South Africa, the data about risk factors for pulmonary tuberculosis (PTB) is limited. Therefore, the assessment of risk factors for PTB is an important step to identify which risk factors are unique in every specific population context and... -
Lower urinary tract symptoms (LUTS) in males: a review of pathophysiology
Item type: Journal Article • Journal: South African Family Practice • Authors: Suhani Maharajh --- Department of Urology, South Africa Ehab H Abdel Goad --- Department of Urology, South Africa Serela S Ramklass --- School of Medicine, South Africa Marius C Conradie --- Netcare Waterfall City Hospital, South AfricaLower urinary tract symptoms (LUTS) refer to the symptom complex that is the common pathway for diseases affecting the lower urinary tract. It manifests as either irritative or obstructive symptoms. LUTS have long been recognised as a significant cause of... -
Predictors of peri-operative risk acceptance by South African vascular surgery patients at a tertiary level hospital
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: P Govender --- Department of Anaesthesia, Nelson R Mandela School of Medicine, South Africa D Spurrett --- College of Humanities, Howard College Campus, South Africa BM Biccard --- Peri-Operative Research Group, Department of Anaesthesia, Nelson R Mandela School of Medicine, South AfricaBackground: Vascular surgical patients have an elevated cardiac risk following non-cardiac surgery. The decision whether to proceed with surgery is multidimensional. Patients must balance the considerations in favour of surgery with those favouring conservative treatment, which requires weighing peri-operative risk... -
The achievement of glycaemic, blood pressure and LDL cholesterol targets in patients with type 2 diabetes attending a South African tertiary hospital outpatient clinic
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Y Pinchevsky --- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, South Africa V Shukla --- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, South Africa N Butkow --- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, South Africa FJ Raal --- Carbohydrate and Lipid Metabolism Research Unit, Division of Endocrinology and Metabolism, Faculty of Health Sciences, South Africa T Chirwa --- Division of Epidemiology and Biostatistics, School of Public Health, Faculty of Health Sciences, South AfricaObjectives: To determine differences in the control of multiple diabetes control parameters in a select group of subjects with type 2 diabetes (T2DM) after a four-year follow-up period. -
Uncertainty, cost of capital and financial disclosure: A review of the theory and some evidence
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: M Negash --- University of the Witwatersrand,This paper contains a critical review of the uncertainty research, and reports on the relationship between corporate disclosure and the adverse selection component of the buy-sell (bid-ask) spread of stock prices. Order processing and holding costs will be decoupled from... -
A survey of risk factors associated with hypertension in the adult population of Kang, Kgalagadi North, Botswana
Item type: Journal Article • Journal: South African Family Practice • Authors: S Tshitenge --- Department of Family Medicine, Botswana LH Mabuza --- Department of Family Medicine and Primary Health Care, South AfricaBackground: Sustainable and aggressive population-based programmes on hypertension awareness, prevention, treatment and control are key to the successful control of this epidemic. The objective of the study was to determine to what extent hypertension and risk factors for its development... -
Risk taking behaviour among urban and rural adolescents in two selected districts in Malaysia
Item type: Journal Article • Journal: South African Family Practice • Authors: Mohd Nawi Azmawati --- Department of Community Health, Malaysia Abdul Hamid Siti Hazariah --- Kulliyyah of Nursing, Malaysia Azhar Shah Shamsul --- Department of Community Health, Malaysia Ahmad Norfazilah --- Department of Community Health, Malaysia Noor Aizuddin Azimatun --- Department of Community Health, Malaysia Hod Rozita --- Department of Community Health, MalaysiaBackground: Risk taking behaviour refers to the tendency to engage in behaviours that have the potential to be harmful or dangerous, which has become a major concern and is rated as one of the public health issues that need special... -
Attracting female sex workers to HIV testing and counselling in Ethiopia: a qualitative study with sex workers in Addis Ababa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Wole Ameyan --- Liverpool School of Tropical Medicine, UK Caroline Jeffery --- Liverpool School of Tropical Medicine, UK Kassahun Negash --- Amref Health Africa, Ethiopia Etsegenet Biruk --- Amref Health Africa, Ethiopia Miriam Taegtmeyer --- Liverpool School of Tropical Medicine, UKDespite growing efforts to increase HIV testing and counselling (HTC) services for most at risk populations in Ethiopia, the use of these services by female sex workers (FSWs) remains low. With rising numbers of FSWs in Addis Ketema and concerns... -
On the road again: concurrency and condom use among Uganda truck drivers
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Elizabeth C Costenbader --- FHI 360 Headquarters, Kathryn Lancaster --- FHI 360 Headquarters, Leonard Bufumbo --- FHI 360 Uganda Country Office, Uganda Angela Akol --- FHI 360 Uganda Country Office, Uganda Greg Guest --- FHI 360 Headquarters,Long-distance truck drivers have been shown to be a critical population in the spread of HIV in Africa. In 2009, surveys with 385 Ugandan long-distance truck drivers measured concurrency point prevalence with two methods; it ranged from 37.4% (calendar-method) to... -
Sexual HIV risk among substance-using female commercial sex workers in Durban, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Tara Carney --- Alcohol and Drug Abuse Research Unit, South Africa Petal M Petersen Williams --- Alcohol and Drug Abuse Research Unit, South Africa Andreas Plüddemann --- Alcohol and Drug Abuse Research Unit, South Africa Charles DH Parry --- Alcohol and Drug Abuse Research Unit, South AfricaThis study examined data collected from a sample of female sex workers (FSWs) during the first two years of a brief risk-reduction intervention for vulnerable populations that focused on substance use and HIV risk-related behaviours (2007–2009) as part of a... -
Prostate cancer profile and risk stratification of patients treated at Universitas Annex Department of Oncology, Bloemfontein, Free State, during 2008 to 2010
Item type: Journal Article • Journal: South African Family Practice • Authors: A Sherriff --- Department of Oncology, South Africa N Da Costa --- Faculty of Health Sciences, School of Medicine, South Africa A Engelbrecht --- Faculty of Health Sciences, School of Medicine, South Africa A Li --- Faculty of Health Sciences, School of Medicine, South Africa N Price --- Faculty of Health Sciences, School of Medicine, South Africa G Joubert --- Faculty of Health Science, Department of Biostatistics, South AfricaBackground: Prostate cancer commonly occurs in older men. Since TNM staging excludes prostate-specific antigen (PSA) level and Gleason score, patients with prostate cancer are divided into risk groups when deciding on treatment options. This study determined the profile and risk... -
Flexibility as risk factor for stress-fracture development in South African male soldiers
Item type: Journal Article • Journal: South African Family Practice • Authors: PS Wood --- Department of Physiology, Division Biokinetics and Sport Science, South Africa PE Krüger --- Department of Physiology, Division Biokinetics and Sport Science, South AfricaBackground: Stress fractures are a common military training injury. Flexibility of muscles and joints may directly influence stress-fracture risk by way of altering the forces applied to bone. Hip external rotation and ankle plantar- and dorsiflexion have been inconsistently reported... -
The roots and complexity of the land issue and of land claims in South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: FC de Beer --- Department of Anthropology and Archaeology,Land reform and land restitution are current and emotional issues in South Africa and a scrutiny of the antecedent events and processes is crucial for an understanding of the complexities involved. Comprehending the land issue requires a reflection on the... -
A rapid assessment of species-specific bird strike risk at the Kotoka International Airport in Accra, Ghana
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Lars H Holbech --- Department of Animal Biology and Conservation Science, Ghana Augustus Asamoah --- Ghana Wildlife Society, Ghana Erasmus H Owusu --- Department of Animal Biology and Conservation Science, GhanaThe Kotoka International Airport in Accra, the capital city of Ghana, has in recent years been confronted with increased presence of birds posing great challenges to aviation safety due to a high risk of bird strikes. As part of measures... -
Exploring the Health Belief Model and first-year students’ responses to HIV/AIDS and VCT at a South African university
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Priya Buldeo --- Department of Sociology, South Africa Leah Gilbert --- Department of Sociology, South AfricaThe Health Belief Model (HBM) is a psychosocial framework that attempts to explain health behaviour. It is determined by an individual's personal beliefs or perceptions about a disease and the options available to decrease its occurrence. In the context of... -
Telling stories and adding scores: Measuring resilience in young children affected by maternal HIV and AIDS
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Liesel Ebersöhn --- Centre for the Study of Resilience and Department of Educational Psychology, South Africa Irma Eloff --- Centre for the Study of Resilience and Department of Educational Psychology, South Africa Michelle Finestone --- Centre for the Study of Resilience and Department of Educational Psychology, South Africa Adri Grobler --- Centre for the Study of Resilience and Department of Educational Psychology, South Africa Melanie Moen --- Centre for the Study of Resilience and Department of Educational Psychology, South Africa“Telling stories and adding scores: Measuring resilience in young children affected by maternal HIV and AIDS”, demonstrates how a concurrent mixed method design assisted cross-cultural comparison and ecological descriptions of resilience in young South African children, as well as validated... -
Incidence and progression of diabetic retinopathy within a private diabetes mellitus clinic in South Africa
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: RL Thomas --- Diabetes Research Unit, Wales L Distiller --- Centre for Diabetes and Endocrinology, South Africa SD Luzio --- Diabetes Research Unit, Wales VJ Melville --- Centre for Diabetes and Endocrinology, South Africa S Roy Chowdhury --- Institute of Molecular and Experimental Medicine, Cardiff University, Wales B Kramer --- Centre for Diabetes and Endocrinology, South Africa DR Owens --- Diabetes Research Unit, WalesObjective: The study objective was to examine the influence of glycaemic control and ethnic variations on the incidence and progression of diabetic retinopathy (DR). -
High-risk human papillomavirus screening and testing with immunohistochemical surrogate biomarkers: an alternative to polymerase chain reaction
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: L J Van Bogaert --- Pathologist National Health Laboratory Service and University of Limpopo, -
An original risk of ovarian malignancy index and its predictive value in evaluating the nature of ovarian tumour
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Vesna Antovska --- Department of Urogynecology, Macedonia Milka Trajanova --- Department of Urogynecology, MacedoniaBackground: We carried out this study to evaluate the predictive value of an original risk of ovarian malignancy index (ROMI) devised by us. -
Using reusable containers for hospital waste: is there an infection risk?
Item type: Journal Article • Journal: Southern African Journal of Epidemiology and Infection • Authors: T.R. Grimmond --- Director, Grimmond and Associates, Microbiology Consultancy, New ZealandReusable waste containers are used to transport healthcare risk waste (sharps and non-sharps) in many countries, and are becoming increasingly common in South Africa. Initially, there may be a perception of risk of pathogen or disease transmission with their introduction... -
Predictors of tuberculosis treatment defaulting in informal dwellers within the eThekwini municipality, Kwazulu-Natal
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: A Rajagopaul --- Department of Community Health Studies Faculty of Health Sciences, E J Kistnasamy --- Department of Community Health Studies Faculty of Health Sciences, P Reddy --- Department of Community Health Studies Faculty of Health Sciences,Globally, tuberculosis causes more than 2-million deaths annually. Despite the implementation of the directly observed treatment strategy (DOTS) in South Africa, cure and defaulter rates have not reached World Health Organization (WHO) target rates. This causes concern as it may... -
Evaluating herbivore extinction probabilities in Addo Elephant National Park, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: M.H. Knight --- Scientific Services, South African National Parks, South Africa M. Kshatriya --- Conservation Planning Unit, Department of Zoology & Entomology, South Africa A.S. Van Jaarsveld --- Conservation Planning Unit, Department of Zoology & Entomology and Centre for Environmental Studies, South Africa A.O. Nicholls --- Division of Wildlife and Ecology, Australia A.J. Hall-Martin --- Conservation Services, South AfricaPopulation extinction evaluations, based on the model developed by Dennis et al. (1991) that did not take density dependence into account and that were based on census data, suggest that many of the herbivore species in Addo Elephant National Park... -
A review of paediatric anaesthetic-related mortality, serious adverse events and critical incidents
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: L Cronjé --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South AfricaAnaesthetists increasingly face questions from parents on the long-term outcomes of anaesthesia, and yet more immediate anaesthetic risks are not understood, nor explained to families. This review focused on paediatric anaesthetic-related mortality, cardiac arrest and anaesthetic-related serious adverse events and... -
Perceived challenges faced by the internal audit function in the South African public sector: A case study of The National Treasury
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Nebbel Motubatse --- Faculty of Economics and Finance, Tshwane University of Technology, South Africa Karin Barac --- Department of Auditing, South Africa Elza Odendaal --- Department of Auditing, South AfricaThis article reports on the challenges faced by the internal audit function in the South African public sector, as perceived by role players other than the internal audit function itself. This study implemented a qualitative research design, using a case... -
Acute postoperative pain in 1 231 patients at a developing country referral hospital: incidence and risk factors
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Adriaan Albertus Murray --- Department of Anaesthesiology and Critical Care, Faculty of Medicine and Health Sciences, South Africa Francois Wilhelm Retief --- Department of Anaesthesiology and Critical Care, Faculty of Medicine and Health Sciences, South AfricaBackground: Postoperative pain is poorly studied in developing countries. At a Western Cape referral hospital, it was aimed to determine the incidence of acute postoperative pain, to identify populations associated with a higher risk thereof (in order to guide resource... -
Gender inequality dynamics in the prevention of a heterosexual HIV epidemic in sub-Saharan Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jane Wathuta --- School of Law, University of the Witwatersrand, South AfricaThis paper critiques the approach to the elimination of gender inequality as an HIV prevention strategy in the just ended era of the Millennium Development Goals, with the aim of contributing to the formulation of policy guidelines for sub-Saharan Africa... -
Risk disclosures by South African listed companies post-King III
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Kim Raemaekers --- School of Accountancy, South Africa Warren Maroun --- School of Accountancy, South Africa Nirupa Padia --- School of Accountancy, South AfricaThe introduction of principles on the governance of risk in the King Code on Corporate Governance (King III), coupled with the drive for more integrated models of reporting, has highlighted the need for effective communication of risks and risk-management strategies... -
The informed consent process for anaesthesia: perspectives of elective surgical patients at Inkosi Albert Luthuli Central Hospital, Durban, South Africa
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: S Naidu --- Discipline of Anaesthesiology and Critical Care, South Africa PD Gopalan --- Discipline of Anaesthesiology and Critical Care, South AfricaBackground: Amongst state hospitals in the eThekwini municipality, obtaining informed consent for anaesthesia is often an informal interaction between the patient and anaesthetist, lacking structure and standardisation. -
Factors influencing academic use of internet banking services: An empirical study
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Theresadevi Moodley --- Information Systems & Technology, South Africa Irene Govender --- Information Systems & Technology, South AfricaThis study explores factors influencing the adoption of Internet banking. Based on the literature and the unified theory of acceptance and use of technology (UTAUT) model, six constructs which influence academics’ usage of and behavioural intention to adopt Internet banking... -
Idiosyncratic risk and anomaly persistence on the Johannesburg Stock Exchange (JSE)
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Daniel Page --- School of Economic & Business Sciences, University of the Witwatersrand, South Africa James Britten --- School of Economic & Business Sciences, University of the Witwatersrand, South Africa Christo Auret --- School of Economic & Business Sciences, University of the Witwatersrand, South AfricaThis study examines arbitrage costs and the persistence of the size, value and momentum premiums on the Johannesburg Stock Exchange (JSE). Two arbitrage costs are considered: transaction and holding costs. Transaction costs refer to indirect and direct costs of engaging... -
Childhood physical and sexual abuse, and adult health risk behaviours among university students from 24 countries in Africa, the Americas and Asia
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- ASEAN Institute for Health Development, Thailand Supa Pengpid --- ASEAN Institute for Health Development, ThailandThe goal of this study was to retrospectively estimate the prevalence of childhood physical abuse (CPA) and childhood sexual abuse (CSA) in relation to experience of adult violence, poor mental health, addictive behaviour and sexual risk behaviour among university students... -
An exploration of the Self-Appraisal Questionnaire for assessing female recidivism in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- Department of Criminology,This study profiled incarcerated female offenders’ criminogenic-oriented self-appraisals. Respondents were 77 female offenders between the ages of 20 and 56 years, serving custodial sentences within the South African Department of Correctional Services ranging from under a year to 25 years,... -
Product diversification in South Africa’s commercial timber plantations: a way to mitigate investment risk
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Verena C Griess --- Department of Forest Resources Management, Faculty of Forestry, Canada Britta Uhde --- Department of Forest and Wood Science, South Africa Cori Ham --- Institute of Forest Management, Germany Thomas Seifert --- Institute of Forest Management, GermanyWe used the portfolio method to examine how a forest company can lower investment risk by producing a mix of timber products. We derived optimum combinations of pine (Pinus patula) saw timber production and eucalypt (Eucalyptus grandis) pulpwood production at... -
Risk factors of poor anthropometric status in children under five years of age living in rural districts of the Eastern Cape and KwaZulu-Natal provinces, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Ms Lesiapeto --- Centre for Excellence in Nutrition, South Africa Cm Smuts --- Centre for Excellence in Nutrition, South Africa Sm Hanekom --- Centre for Excellence in Nutrition, South Africa J Du Plessis --- Department of Statistics, South Africa M Faber --- Nutritional Intervention Research Unit, South AfricaObjectives: Factors associated with children’s anthropometric status were determined. -
Alcohol consumption and cardiovascular disease risk in an African population in transition: the Prospective Urban and Rural Epidemiology (PURE) study
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Pt Pisa --- Centre of Excellence for Nutrition, South Africa A Kruger --- Centre of Excellence for Nutrition, South Africa Hh Vorster --- Centre of Excellence for Nutrition, South Africa Bm Margetts --- Institute of Human Nutrition, United Kingdom T Loots Du --- Centre of Excellence for Nutrition, South AfricaObjective: There is evidence showing a cardioprotective effect of light to moderate alcohol consumption in many populations. Whether alcohol consumption reduces cardiovascular disease (CVD) risk in an African population remains unclear. This study therefore assessed the associations between alcohol consumption... -
Household market participation and stunting in preschool children in Lilongwe, Malawi
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Al Howard --- Department of Global and Community Health, Mk Komwa --- Department of Environmental Science and Policy, R. Yohane --- Kanengo AIDS Support Organization, Kh Jacobsen --- Department of Global and Community Health,Background: Stunting among Malawian preschool children continues to be a concern. -
Under- and overnutrition and evidence of metabolic disease risk in rural black South African children and adolescents
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Tm Pedro --- MRC/Wits Developmental Pathways for Health Research Unit Department of Paediatrics, K. Kahn --- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Jm Pettifor --- MRC/Wits Developmental Pathways for Health Research Unit Department of Paediatrics, Sm Tollman --- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Sa Norris --- MRC/Wits Developmental Pathways for Health Research Unit Department of Paediatrics,Objectives: The objective was to determine the prevalence of under- and overnutrition, as well as evidence of metabolic disease risk in rural black South African children and adolescents. -
Understanding entrepreneurship in the South African context: Insights from entrepreneurial risk attitudes of four major ethnic groups
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Dennis Yao Dzansi --- Department of Business Support Studies, South Africa Akwasi Arko-Achemfuor --- Department of Adult Basic Education, South AfricaResearchers have been asking why some ethnic groups are more entrepreneurial than others. This question persists in South Africa where there are differing entrepreneurial outcomes based on ethnicity. In this study, we examine why some ethnic groups in South Africa... -
Actual and perceived collision risk for bird strikes at Namibian airports
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Morgan L Hauptfleisch --- Department of Agriculture and Natural Resources Sciences, Namibia Nico L Avenant --- Centre for Environmental Management, South AfricaAt Namibia’s two major airports, Hosea Kutako International and Eros (domestic), 117 bird strike collision incidents were recorded between 2006 and 2010. A risk assessment, which included a proposed risk weighting methodology, was conducted at Hosea Kutako and Eros airports,... -
Investigation of the coexistence of CKD and non-communicable chronic diseases in a PBM company in South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: WP Meuwesen --- Medicine Usage in South Africa (MUSA), South Africa JM du Plessis --- Medicine Usage in South Africa (MUSA), South Africa JR Burger --- Medicine Usage in South Africa (MUSA), South Africa MS Lubbe --- Medicine Usage in South Africa (MUSA), South Africa M Cockeran --- Medicine Usage in South Africa (MUSA), South AfricaBackground: Chronic kidney disease (CKD) is a public health problem, with increasing global prevalence. Several factors could influence the prognosis of CKD, including comorbid chronic conditions. This study investigated the coexistence of CKD and non-communicable chronic diseases in the private... -
Testing for the occurrence of pilchard herpesvirus (PHV) in South African sardine Sardinops sagax
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BM Macey --- Branch: Fisheries Management, Department of Agriculture, South Africa KW Christison --- Branch: Fisheries Management, Department of Agriculture, South Africa J de Goede --- Branch: Fisheries Management, Department of Agriculture, South Africa L Hutchings --- Marine Research Institute and Department of Biological Sciences, South Africa CD van der Lingen --- Branch: Fisheries Management, Department of Agriculture, South AfricaCatches of South African sardine Sardinops sagax have declined in recent years from about 200 000 t harvested annually during the period 2002–2006 to less than 100 000 t. Consequently, some companies are now importing sardine from sources elsewhere in... -
Laboratory-scale evaluation of the potential of chemical containment for farmed abalone larval escapees
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Roux --- Department of Genetics, South Africa H Lambrechts --- Department of Animal Sciences, South Africa R Roodt-Wilding --- Department of Genetics, South AfricaThe sensitivity of abalone Haliotis midae larvae to low levels of toxicants was used to conduct a laboratoryscale experiment to determine the possibility of using chemical containment to prevent the escape of larvae from land-based culture systems, thereby reducing the... -
Learners’ perceptions and experiences of respect in educator-learner relationships
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lucie Grimova --- Centre for Child, Youth and Family Studies, South Africa Izanette Van Schalkwyk --- Centre for Child, Youth and Family Studies, South AfricaThe aim of the study was to explore and describe secondary school learners’ perceptions and experiences of respect in educator-learner relationships within a high-risk South African neighbourhood context. A qualitative research design was used in this study. The 15 participants... -
Adolescents’ perceptions of health and well-being: Influences of urban contemporary music
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Cindy Swartbooi --- Department of Psychology, South Africa Shazly Savahl --- Department of Psychology, South Africa Deborah Isobell --- Department of Psychology, South Africa Gadija Khan --- Department of Psychology, South Africa Cassandra Wagenaar --- Department of Psychology, South Africa Fadzisai Makonyonga --- Department of Psychology, South Africa Thandokazi Maseti --- Department of Psychology, South Africa Laaiqah Parker --- Department of Psychology, South Africa Tshinondiwa Ramaite --- Department of Psychology, South AfricaThe study aimed to explore adolescents’ perceptions of how urban contemporary music influences health and well-being among them. Data on health and well-being effects of music consumption were gathered from a convenience sample of 16 participants (male = 50%, females... -
Water cytotoxicity and dioxins bioaccumulation in an Egyptian delta wetland ecosystem
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MM El-Shazly --- Department of Entomology, Faculty of Science, Egypt El Elzayat --- Department of Zoology, Faculty of Science, Egypt WA Omar --- Department of Zoology, Faculty of Science, Egypt IIA El-Sebeay --- Plant Protection Research Institute, Agricultural Research Center, Egypt YA Edmardash --- Department of Entomology, Faculty of Science, Egypt MM Soliman --- Department of Entomology, Faculty of Science, Egypt KM Abdel Rahman --- Department of Entomology, Faculty of Science, Egypt MS Ibrahim --- Department of Geography, Faculty of Arts, EgyptManzala Lake, as one of the main Egyptian wetland ecosystems, is facing risks of pollution. An in vitro cytotoxicity test using a mammalian cell line was employed to determine the toxicity of multiple pollutants in the water and Tilapia zillii... -
Multiple sexual partnerships and their correlates among Facebook users in Swaziland: an online cross-sectional study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Bhekumusa Wellington Lukhele --- Department of Global Health and Socio-Epidemiology, Japan Teeranee Techasrivichien --- Department of Global Health and Socio-Epidemiology, Japan Patou Masika Musumari --- Department of Global Health and Socio-Epidemiology, Japan Christina El-saaidi --- Department of Global Health and Socio-Epidemiology, Japan S. Pilar Suguimoto --- Department of Global Health and Socio-Epidemiology, Japan Masako Ono-Kihara --- Department of Global Health and Socio-Epidemiology, Japan Masahiro Kihara --- Department of Global Health and Socio-Epidemiology, JapanSocial networking sites (SNSs) have been suggested to facilitate risky sexual activities. However, it is unknown and of concern how SNSs such as Facebook shape risky sexual activities in developing settings such as Swaziland, the country hardest hit by HIV... -
A qualitative study of migrant-related stressors, psychosocial outcomes and HIV risk behaviour among truck drivers in Zambia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Lynn Murphy Michalopoulos --- School of Social Work, USA Nomagugu Ncube --- International Organization for Migration, Zambia Simona J. Simona --- Department of Social Development Studies, Zambia Brian Kansankala --- International Organization for Migration, Zambia Emmanuel Sinkala --- International Organization for Migration, Zambia Jasmin Raidoo --- School of Social Work, USATruck drivers are part of mobile populations which have been noted as a key population at risk of HIV in Zambia. This study was aimed at: (1) determining potentially traumatic events (PTEs), labour migrant-related stressors, psychosocial problems and HIV risk... -
Clinical correlates of suicidality among individuals with HIV infection and AIDS disease in Mbarara, Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Godfrey Zari Rukundo --- Department of Psychiatry, Uganda Eugene Kinyanda --- Department of Psychiatry, Uganda Brian Mishara --- Centre for Research and Intervention on Suicide and Euthanasia and Psychology Department, CanadaThe association between suicidality and HIV/AIDS has been demonstrated for three decades, but little is know about risk factors that can help understand this association and help identify who is most at risk. Few research studies have been conducted in... -
Do long memory and asymmetries matter when assessing downside return risk?
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Nico Katzke --- Economics Department, South Africa Chris Garbers --- Economics Department, South AfricaIn this paper we set out to test whether, on sector level, returns series in South Africa exhibit long memory and asymmetries and, more specifically, whether these effects should be accounted for when assessing downside risk. The purpose of this... -
Potential use of wood ash in South African forestry: a review
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Gerhardus P Scheepers --- Department of Forestry and Wood Science, South Africa Ben du Toit --- Department of Forestry and Wood Science, South AfricaThe use of landfills as a disposal method for wood ash is costly, environmentally detrimental and is pitted against increasingly stern environmental regulations. Literature has shown that wood ash has the potential to be used as a forest fertiliser and... -
A criminogenic profile of a sample of South African high school learners
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- Department of Criminology,This study investigated the prevalence of criminogenic risk factors among South African high school learners. A sample of 312 high school learners attending a secondary (high) school in the Gauteng province of South Africa were surveyed (55.3% = female). They... -
The number of stocks required for effective portfolio diversification: the South African case
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: David Bradfield --- Department of Statistical Sciences, South Africa Brian Munro --- Multi Asset Department, Cadiz Asset Management, South AfricaThis article considers several insights surrounding the number of stocks needed in portfolios in South Africa to achieve effective risk reduction. The majority of studies in the literature use equally-weighted portfolio construction schemes and conclude that at most 20 stocks... -
Temporal and spatial fluctuations of heavy metals in Opa Reservoir, Ile-Ife, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TA Adesakin --- Department of Zoology, Nigeria AA Adedeji --- Department of Zoology, Nigeria YF Taiwo --- Natural History Museum, NigeriaThe Opa Reservoir, established for water supply to the Obafemi Awolowo University community, over the years has received direct linkage to township drains as a result of the widening and dredging of its river channels. The current study aimed at... -
“The other”: Persistent beliefs regarding HIV risk in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lynlee Howard-Payne --- Department of Psychology, School of Human and Community Development, South AfricaThis study explored stereotype constructions people may impute on to others in the context of a contagious disease epidemic. Participants were 30 undergraduate students from a large university in Johannesburg, South Africa. They completed the open-ended Build-A-Character Questionnaire, which described... -
Nutritional status and metabolic risk in HIV-infected university students: challenges in their monitoring and management
Item type: Journal Article • Journal: South African Family Practice • Authors: L Steenkamp --- HIV&AIDS Research Unit, South Africa I Truter --- Department of Pharmacy, Drug Utilization Research Unit (DURU), South Africa M Williams --- Department of Nursing, South Africa A Goosen --- Campus Health Service, South Africa I Oxley --- Department of Dietetics, South Africa E van Tonder --- Department of Dietetics, South Africa S Kock --- Department of Human Movement Science, South Africa DJL Venter --- Unit for Statistical Consultation, South AfricaObjective: This study aims to describe challenges in the management of HIV-infected university students focusing on their nutritional status and metabolic risk. -
Sexual and reproductive health risk behaviours among South African university students: results from a representative campus-wide survey
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Susie Hoffman --- HIV Center for Clinical and Behavioral Studies, USA Michael Levasseur --- Department of Epidemiology, USA Joanne E. Mantell --- HIV Center for Clinical and Behavioral Studies, USA Mags Beksinska --- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Maternal, Adolescent and Child Health Research Unit (MatCH Research Unit), South Africa Zonke Mabude --- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Maternal, Adolescent and Child Health Research Unit (MatCH Research Unit), South Africa Claudia Ngoloyi --- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Maternal, Adolescent and Child Health Research Unit (MatCH Research Unit), South Africa Elizabeth A. Kelvin --- Epidemiology and Biostatistics Program, School of Urban Public Health, Hunter College & The CUNY School of Public Health, USA Theresa Exner --- HIV Center for Clinical and Behavioral Studies, USA Cheng-Shiun Leu --- HIV Center for Clinical and Behavioral Studies, USA Lavanya Pillay --- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Maternal, Adolescent and Child Health Research Unit (MatCH Research Unit), South Africa Jennifer A. Smit --- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, Maternal, Adolescent and Child Health Research Unit (MatCH Research Unit), South AfricaAmong South African university students, HIV prevalence is lower than in age-peers, but at 3.8% it is not negligible. We examined prevalence of factors potentially associated with HIV risk, focusing on partnership characteristics and consistent condom use. We hypothesised that... -
“The child can remember your voice”: parent–child communication about sexuality in the South African context
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Esmeralda Vilanculos --- Centre of Excellence in Human Development, School of Human and Community Development, Department of Psychology, South Africa Mzikazi Nduna --- Centre of Excellence in Human Development, School of Human and Community Development, Department of Psychology, South AfricaThere is a wealth of research on parent–child communication about sexual and reproductive health and rights (SRHR) and its influence on young people’s sexual behaviours. However, most of it is from the global North. The aim of this study was... -
Political Risk and Chinese Outward Foreign Direct Investment to Africa: The Role of Foreign Aid
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Jane Lu --- Department of Management and Marketing, Faculty of Business and Economics, Australia Xueli Huang [cor1] Michael Muchiri --- School of Management, RMIT University, AustraliaWe investigated the role of Chinese Aid in mitigating the political risk for Chinese outward foreign direct investment (OFDI) in Africa, especially in resource-abundant countries. Using panel data for 50 African countries that have received Chinese OFDI from 2002 to... -
Portfolio performance under reference-day risk
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Marcelo Gonzalez --- Universidad de Chile, Chile Arturo Rodriguez --- Universidad de Chile, Chile Roberto Stein --- College of Business Administration, USAReference-day risk has been previously identified as a type of sampling variation phenomenon, and its effect on the estimation of stock returns and their volatility and market betas has been documented. Using a dataset of daily equity mutual fund returns,... -
Schistosomiasis risk factors based on the infection status among school-going children in the Ndumo area, uMkhanyakude district, South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Muhubiri Kabuyaya --- School of Nursing and Public Health, Department of Public Health Medicine, South Africa Moses John Chimbari --- School of Nursing and Public Health, Department of Public Health Medicine, South Africa Tawanda Manyangadze --- School of Nursing and Public Health, Department of Public Health Medicine, South Africa Samson Mukaratirwa --- School of Life Sciences, South AfricaBackground: Schistosomiasis remains a public health burden in South Africa, particularly in KwaZulu-Natal. The study aimed to identify the risk factors for transmission of Schistosoma haematobium among school-going children in the Ndumo area of uMkhanyakude district, KwaZulu-Natal. -
Loneliness: Its correlates and associations with health risk behaviours among university students in 25 countries
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- HIV/AIDS/STIs and TB (HAST), South Africa Supa Pengpid --- Department of Research & Innovation, South AfricaThe aim of this cross-national study was to assess factors associated with loneliness and to determine the degree to which loneliness affects health status and risk behaviours among university students. Data were collected from 17 886 university students in 25... -
Ecological correlates of multiple sexual partnerships among adolescents and young adults in urban Cape Town: a cumulative risk factor approach
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Evans Muchiri --- Demography and Population Studies Programme, Schools of Public Health and Social Sciences, South Africa Clifford Odimegwu --- Demography and Population Studies Programme, Schools of Public Health and Social Sciences, South Africa Pamela Banda --- Demography and Population Studies Programme, Schools of Public Health and Social Sciences, South Africa Lorreta Ntoimo --- Demography and Population Studies Programme, Schools of Public Health and Social Sciences, South Africa Sunday Adedini --- Demography and Population Studies Programme, Schools of Public Health and Social Sciences, South AfricaStudies in South Africa have reported unsafe levels of risky sexual behvaiours among adolescents and young adults, with the country reporting the highest burden of HIV/AIDS globally, as well as a high rate of teenage pregnancy. While determinants of risky... -
Health risk assessment of exposure to ambient concentrations of benzene, toluene and xylene in Pretoria West, South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Oyewale Mayowa Morakinyo --- Department of Environmental Health, Faculty of Science, South Africa Matlou Ingrid Mokgobu --- Department of Environmental Health, Faculty of Science, South Africa Murembiwa Stanley Mukhola --- Department of Environmental Health, Faculty of Science, South Africa Jacobus Christoffel Engelbrecht --- Department of Environmental Health, Faculty of Science, South AfricaBenzene, toluene and xylene (BTX) are part of the volatile organic group of pollutants and are seen as international environmental priority air pollutants that can constitute a threat to public health. This study assessed the non-carcinogenic and carcinogenic risks of... -
HIV risk perception and consistency in condom use among adolescents and young adults in urban Cape Town, South Africa: a cumulative risk analysis
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Evans Muchiri --- Demography and Population Studies Programme, South Africa Clifford Odimegwu --- Demography and Population Studies Programme, South Africa Nicole De Wet --- Demography and Population Studies Programme, South AfricaBackground: The relationship between HIV risk perception and consistency in the use of condoms is scarcely understood in the context of a high HIV prevalence among adolescents and young adults in urban South Africa. Methods: Using data from Cape Area... -
Tuberculosis risk factors in Lephalale local municipality of Limpopo province, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: T.M. Ramaliba --- Department of Public Health, School of Health Sciences, South Africa T.G. Tshitangano --- Department of Public Health, School of Health Sciences, South Africa H.A. Akinsola --- Department of Public Health, School of Health Sciences, South Africa M. Thendele --- Department of Public Health, School of Health Sciences, South AfricaLephalale local municipality is the leading sub-district in Limpopo province with 9.8% of deaths caused by tuberculosis. This study aimed to describe the risk factors for TB in Lephalale local municipality. A quantitative descriptive, cross-sectional survey design was used to... -
HIV prevention needs for men who have sex with men in Swaziland
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Bhekie Sithole --- Health Communication Capacity Collaborative, SwazilandMen who have sex with men (MSM) have a high HIV burden and also often face multiple other challenges accessing HIV services, including legal and social issues. Although Swaziland recently started responding with interventions for MSM, significant gaps still exist... -
Environmental health risks associated with e-waste exposure in Badplaas, Carolina and Elukwatini landfills, Republic of South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Fannie Machete --- Department of Environmental Science, South AfricaA recent study identified a mixed stream of waste in Badplaas, Carolina and Elukwatini landfills. However, the risks associated with the situation in the three selected towns remains unknown. Thus, this paper fills this gap of qualitatively assessing the potential... -
Adverse developmental experiences and risky health behaviours among black South African university students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Solomon Mashegoane --- Department of Psychology, South Africa Malose Makhubela --- Department of Psychology, South AfricaThis study examined the relationship between adverse developmental experiences (ADEs) and risky health behaviours among a cross-sectional sample of black South African students (n = 393; females = 58%, Mage = 20.5 years, SD = 2.9). Binary logistic regression was... -
Daily life with early orphanhood from HIV/AIDS: An exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Asamenew Demessie Bireda --- Faculty of Education, South Africa Jace Pillay --- South African Research Chair: Education and Care in Childhood, Faculty of Education, South AfricaThis study explored the everyday lived life by South African early adolescents orphaned by HIV/AIDS. Informants were ten early adolescents (age range 12 to 14 years; females = 6; males = 4) from a low socioeconomic status neighbourhood of Johannesburg. The adolescents completed autobiographical... -
Pathways to violence propensity: Results from a two-wave study of young males in urban South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ian Edelstein --- Human Sciences Research Council, South AfricaThe aim of this study was to model pathways to violence propensity and violent behaviour among boys and young men in a high-violence community in South Africa. To that end, 284 young males (11 to 23 years old) from Khayelitsha,... -
Metal accumulation in two contiguous eutrophic peri-urban lakes, Chivero and Manyame, Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: B Utete --- Chinhoyi University of Technology, Zimbabwe C Phiri --- Chinhoyi University of Technology, Zimbabwe SS Mlambo --- Chinhoyi University of Technology, Zimbabwe N Maringapasi --- Chinhoyi University of Technology, Zimbabwe N Muboko --- Chinhoyi University of Technology, Zimbabwe TB Fregene --- Department of Aquaculture and Fisheries Management, Nigeria B Kavhu --- University of Zimbabwe, ZimbabweConcentrations of aluminium, cadmium, chromium, cobalt, copper, iron, lead, nickel and zinc were determined in surface water, benthic sediments, and the gills, liver and stomach muscle tissues of Oreochromis niloticus and Clarias gariepinus in peri-urban lakes Chivero and Manyame, Zimbabwe... -
Extrapulmonary tuberculosis in the setting of HIV hyperendemicity at a tertiary hospital in Durban, South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: S Gounden --- Department of Internal Medicine, School of Clinical Medicine, South Africa R Perumal --- Department of Pulmonology and Critical Care, Centre for the AIDS Programme of Research in South Africa, South Africa NP Magula --- Department of Internal Medicine, School of Clinical Medicine, South AfricaBackground: South Africa has the highest burden of tuberculosis/human immunodeficiency virus (TB/HIV) co-infection in the world, with the province of KwaZulu-Natal representing the global epicentre of TB/HIV. While significant progress has been made to improve the diagnosis of pulmonary tuberculosis,... -
Does relative efficiency matter? An analysis of market uncertainty
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Hyoung-joo Lim --- Division of Accounting/Tax and Management Information Systems, South Korea Dafydd Mali --- Sheffield Business School, Sheffield Hallam University, UKIn this paper, we examine whether relative efficiency provides useful information for investment decisions. We find that efficient firms have lower levels of stock price volatility compared to inefficient firms. The results suggest that market participants consider relative efficiency when... -
Parental involvement and health risk behaviours among school-going adolescents in six African countries
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- ASEAN Institute for Health Development, Thailand Karl Peltzer --- Department of Research Development and Innovation, South AfricaThe aim of this study was to assess the association between parental involvement (support and monitoring) and health risk behaviours among adolescents in six African countries. Data were from the cross-sectional Global School-Based Student Health Survey (GSHS) which sampled a... -
Psychosocial characteristics of primary care-seeking long-distance truck drivers in Kenya and associations with HIV testing
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Matthew L Romo --- Department of Epidemiology and Biostatistics & Institute for Implementation Science in Population Health, CUNY Graduate School of Public Health and Health Policy, USA Gavin George --- Health Economics and HIV and AIDS Research Division, South Africa Joanne E Mantell --- HIV Center for Clinical and Behavioral Studies, Department of Psychiatry, Division of Gender, Sexuality, and Health, USA Eva Mwai --- North Star Alliance, Kenya Eston Nyaga --- North Star Alliance, Kenya Jacob O Odhiambo --- North Star Alliance, Kenya Kaymarlin Govender --- Health Economics and HIV and AIDS Research Division, South Africa Elizabeth A Kelvin --- Department of Epidemiology and Biostatistics & Institute for Implementation Science in Population Health, CUNY Graduate School of Public Health and Health Policy, USAThe 90-90-90 strategy from the Joint United Nations Programme on HIV/AIDS (UNAIDS) to end the AIDS epidemic by 2020 includes, as its first goal, to have 90% of all people living with HIV to know their status. Achieving this goal... -
Record of Blue tilapia Oreochromis aureus (Steindachner, 1864) in the Eerste River catchment, Western Cape province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SM Marr --- South African Institute for Aquatic Biodiversity, South Africa G Gouws --- South African Institute for Aquatic Biodiversity, South Africa S Avlijas --- Redpath Museum, Canada D Khosa --- South African Institute for Aquatic Biodiversity, South Africa ND Impson --- Scientific Services, South Africa M van der Westhuizen --- Conservation Services, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity, South AfricaOreochromis aureus was imported from Israel into South Africa in 1959 but data on its current status in South Africa are lacking. Genomic DNA was extracted and the COI gene amplified at the South African Institute for Aquatic Biodiversity. The... -
The investment return puzzle on the Johannesburg Stock Exchange
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Pravin Semnarayan --- Gordon Institute of Business Science, University of Pretoria, South Africa Michael Ward --- Gordon Institute of Business Science, University of Pretoria, South Africa Chris Muller --- Gordon Institute of Business Science, University of Pretoria, South AfricaFirms that invest into positive net present value projects should outperform firms that do not invest. Surprisingly, several studies on United States data have found a negative relationship between capital investment and subsequent shareholder return. There are conflicting explanations for... -
Body mass index and associated lifestyle and eating behaviours of female students at a South African university
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Philippe Jean-Luc Gradidge --- Centre for Exercise Science and Sports Medicine, South Africa Emmanuel Cohen --- MRC/Wits Developmental Pathways for Health Research Unit, Department of Paediatrics, South AfricaObjective: To determine the prevalence of obesity and the physical activity, sitting time, and eating behaviours associated with BMI in a group of undergraduate female students at a South African university. -
Prevalence of healthcare-associated infection at a tertiary hospital in the Northern Cape Province, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: A Nair --- Department of Family Medicine, South Africa WJ Steinberg --- Department of Family Medicine, South Africa T Habib --- Department of Family Medicine, South Africa H Saeed --- Department of Family Medicine, South Africa JE Raubenheimer --- Department of Biostatistics, South AfricaBackground: Healthcare-associated infections (HCAIs) are a well-known public health threat; however, published data on the endemic burden of HCAIs in sub-Saharan Africa are limited. This study aimed to determine the prevalence of primary bloodstream infection (PBSI), surgical site infection (SSI),... -
Sexual risk behaviour among HIV-infected women in the first twelve months after delivery in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Geoffrey Setswe --- HIV/AIDS Management, South Africa Gladys Matseke --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Shandir Ramlagan --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Stephen M. Weiss --- Department of Psychiatry and Behavioural Sciences, USA Violeta J. Rodriguez --- Department of Psychiatry and Behavioural Sciences, USA Sibusiso Sifunda --- HIV/AIDS/STIs and TB (HAST) Research Programme, South Africa Ryan Cook --- Department of Epidemiology, USA Tae Kyoung Lee --- Department of Public Health Sciences, USA Deborah Jones --- Department of Psychiatry and Behavioural Sciences, USAThis study aimed to assess sexual risk behaviour and its social correlates in HIV-infected women living in rural South Africa at six and twelve months post-partum. Participants were 699 HIV-positive women recruited prenatally by systematic sampling from twelve community health... -
Personal and socio-ecological resilience resources among school-going teenage mothers: An exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Macalane Junel Malindi --- School of Education Studies, South AfricaThis qualitative study explored the self-perceived personal and socio-ecological resilience resources that enabled teenage mothers to cope with early parenthood and school in a South African school. Participants were a convenient sample of ten school-going teenage mothers in the Gauteng... -
Concurrent tobacco use and risky drinking in South Africa: Results from the South African National Health and Nutrition Examination Survey
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nancy Phaswana-Mafuya --- Deputy Vice Chancellor Research and Innovation Office, South Africa Karl Peltzer --- Deputy Vice Chancellor Research and Innovation Office, South Africa Supa Pengpid --- ASEAN Institute for Health Development, ThailandThe aim of this study was to examine socio-demographic and psychosocial correlates of concurrent tobacco use and risky drinking. We analysed data from the cross-sectional South African National Health and Nutrition Examination Survey (SANHANES-1) 2011–2012. The sample included 14 764... -
Prevalence and determinants of congenital cytomegalovirus infection at a rural South African central hospital in the Eastern Cape
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Donald Tshabalala --- Department of Paediatrics, South Africa Howard Newman --- National Health Laboratory Service, Port Elizabeth, South Africa and Department of Pathology, Division of Medical Virology, South Africa Charles Businge --- Department of Obstetrics and Gynaecology, South Africa Sikhumbuzo A Mabunda --- Department of Public Health, South Africa Waldette Kemp --- National Health Laboratory Service, South Africa Pakama Beja --- Department of Paediatrics, South AfricaBackground: The Nelson Mandela Academic Hospital (NMAH) in Mthatha, Eastern Cape, is a rural central hospital, serving one of the poorest districts in South Africa. The prevalence of and risk factors for congenital cytomegalovirus (CMV) in this area are not... -
The global currency tango — The relationship between the carry trade, emerging/commodity currencies and risk
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Steven Smit --- Department of Statistical Sciences, South Africa Daniel Polakow --- School of Actuarial Science, South AfricaThis study has foci on the global drivers of currencies and their relationship to economic jurisdiction in the presence of global risk appetite. We focus on a comprehensive basket of global currencies, deriving three statistically motivated currency market factors. We... -
The impact of reference-day risk on beta estimation and a proposed solution
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Keshav Sahadev --- Gordon Institute of Business Science, South Africa Michael Ward --- Gordon Institute of Business Science, South Africa Chris Muller --- Gordon Institute of Business Science, South AfricaThe ability to accurately estimate systematic risk (or beta) when reference-day risk is considered, is an ineluctable requirement for all applications of the capital asset pricing model (CAPM). -
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... -
Prevalence of HIV and other infections and injection behaviours among people who inject drugs in Addis Ababa, Ethiopia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Minilik Demissie --- Ethiopian Public Health Institute, Ethiopia Lisa G. Johnston --- United Nations Office on Drug and Crime, USA Mekonnen Muleta --- United Nations Office on Drug and Crime, USA Dires Desyebelew --- United Nations Office on Drug and Crime, USA Wudinesh Belete --- Ethiopian Public Health Institute, Ethiopia Atsbeha G/Egxiabehre --- Ethiopian Public Health Institute, Ethiopia Nigussie Gezahegn --- Ethiopian Public Health Institute, Ethiopia Desta Kassa --- Ethiopian Public Health Institute, Ethiopia Yibeltal Aseffa --- Ethiopian Public Health Institute, EthiopiaBackground: Ethiopia is one of the sub-Saharan African countries most affected by HIV/AIDS. However, the country lacks data describing the extent of the epidemic among people who inject drugs (PWID). Thus, a bio-behavioural study was conducted in 2015 to generate... -
Institutional Risk and Firm Performance in Africa: The Moderating Role of Corruption Control
Item type: Journal Article • Journal: Africa Journal of Management • Authors: David B. Zoogah --- Williams College of Business, USAHow does institutional risk influence firm performance in Africa? While most studies focus on formal institutional risk, I argue that informal institutional risks are equally influential. Consistent with that view I use informal institutions theory and multilevel techniques to analyze... -
Modifiable factors within the prevention of mother-to-child transmission programme associated with failure to prevent HIV transmission in the Onandjokwe district of Namibia
Item type: Journal Article • Journal: South African Family Practice • Authors: Flavia Strato Shayo --- Division of Family Medicine and Primary Care, South Africa Bob Mash --- Division of Family Medicine and Primary Care, South Africa -
The relation between low self-esteem and depressive mood in a non-clinical sample: The role of gender and negative life events
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Malose Makhubela --- Department of Psychology, South AfricaThe suggestion that self-esteem is both a protective and a risk factor for depression is well documented. However, this association is not consistently observed by empirical research. The current study investigated the main and interactive effects of low self-esteem and... -
Hypogonadism and associated risk factors in male patients with type 2 diabetes mellitus attending the diabetic clinic of Tikur Anbessa Specialized Teaching Hospital, Addis Ababa, Ethiopia
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Sisay Teka --- College of Medicine and Health Sciences, Ethiopia Samuel Kinde --- College of Health Sciences, Addis Ababa University, Ethiopia Gobena Dedefo --- College of Health Sciences, Addis Ababa University, Ethiopia Kissi Mudi --- Ethiopian Public Health Institute, Ethiopia Getahun Tarekegn --- Tikur Anbesa Specialized Teaching Hospital, EthiopiaBackground: A high prevalence of hypogonadism among men with type 2 diabetes mellitus (T2DM) has been reported worldwide. This in turn creates a substantial public health burden in terms of inadequate sexual function and potential infertility. However, the status of... -
Determinants of risky sexual behaviours among adolescents in Central African Republic, Eswatini and Ghana: evidence from multi-indicator cluster surveys
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joseph Kangmennaang --- Department of Geography and Environment, Canada Paul Mkandawire --- Institute of Interdisciplinary Studies, Human Rights Program, Carleton University, Canada Isaac Luginaah --- Department of Geography, CanadaDespite the declining HIV/AIDS prevalence globally, nearly half of all new HIV infections still occur among youth, especially in sub-Saharan Africa. While determinants of risky sexual behaviour have received copious attention in the literature, we still lack multi-country studies that... -
The feasibility of the draw-and-write technique in exploring the resilience of children orphaned by AIDS
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nyika Machenjedze --- Save the Children South Africa, South Africa Macalane J Malindi --- School of Psychosocial Education, South Africa Fungai Mbengo --- School of Nursing and Midwifery,Worldwide, researchers routinely study children indirectly through adults who act as proxies for such children. The call for researchers to rather study children directly and adopt less intrusive child-friendly methodologies has become louder. The draw-and-write technique is regarded as a... -
Can non-momentum factor premiums explain the momentum anomaly on the JSE? An in-depth portfolio attribution analysis
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Daniel Page --- Finance Division, School of Economic & Business Sciences, South Africa Christo Auret --- Finance Division, School of Economic & Business Sciences, South AfricaSouth African literature related to the momentum anomaly is generally limited to the exploration of momentum on a univariate and at most a bivariate basis, such as in combination with value (Fraser & Page, 2000) or liquidity (Page, Britten, &... -
The absorption and usage of cloud accounting technology by accounting firms in Cape Town for services provided to their clients
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sharon Rudansky-Kloppers --- Department of Business Management, South Africa Kobus Van den Bergh --- Sable International, South AfricaCloud computing is one of the latest technological innovations and offers organizations of all sizes new and unique opportunities and challenges. Many firms worldwide have, however, become used to running their businesses in the traditional way and seem to be... -
Modelling the effects of exposure to risk on junior faculty productivity incentives under the academic tenure system
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Ibrahim Niankara --- College of Business Administration, Abu Dhabi, United Arab EmiratesThis paper relies on modelling tools from probability theory and the economics of risk to analyze the ex-ante incentive properties of tenure from the perspective of junior faculty members. The theoretical results show that under publication value uncertainty and risk... -
Constructions of sexuality and HIV risk among young people in Venda, South Africa: implications for HIV prevention
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Veronica Sivhabu --- Department of Psychology, South Africa Maretha Visser --- Department of Psychology, South AfricaThe study explored constructions of sexuality among young people of Venda in Limpopo, South Africa, and cultural practices that can be used to develop context-specific HIV prevention programmes. HIV prevention can be promoted by including some cultural practices in prevention... -
Delayed disclosure of disability related needs: Experiences of “at-risk” students in a South African university
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Samukelisiwe Mngomezulu --- School of Education, South AfricaThe present study explored disability disclosure influences on university students, and specifically the types of supports the students perceive to need. Informants were three differently abled students (female = 1 and males = 2). They participated in semi-structured and focus... -
Homicide–suicide: practical implications for risk reduction and support services at primary care level
Item type: Journal Article • Journal: South African Family Practice • Authors: C Kotzé --- Weskoppies Psychiatric Hospital/Department of Psychiatry, School of Medicine, South Africa JL Roos --- Weskoppies Psychiatric Hospital/Department of Psychiatry, School of Medicine, South AfricaHomicide–suicide (HS) has been defined as homicide committed by a person who subsequently commits suicide within one week of the homicide. In most cases it occurs within 24 hours. HS is a public health problem, victimising not only those directly... -
Does partial concealment influence predation attempts on small model snakes in South Africa?
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Gareth Coombs --- , South AfricaPredation risk may be high in small snakes and most small snakes are thought to avoid certain behaviours, such as basking in open areas to reduce predation risk. The extent to which this concealment limits predation during basking is not... -
On the financial interpretation of risk contributions: An analysis using Quantile Simulation
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Simon du Plooy --- Centre for Business Mathematics and Informatics, Faculty of Natural Sciences, South AfricaThis paper tests whether the financial interpretation of risk contributions (Qian, 2006), as measured by marginal change in volatility, holds when accounting for fat tails in the asset return distributions. This important result is the theoretical foundation of risk-based portfolios,... -
A comparative analysis of risk measures: A portfolio optimisation approach
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Evan Gilbert --- University of Stellenbosch Business School, South Africa Luke Meiklejohn --- Department of Actuarial Science, South AfricaInvestment portfolios are typically created to minimise the level of risk for a required level of return. This paper highlights the importance of the choice of risk metric in this process. The theoretical nature of volatility as a risk measure... -
Social networks, gender and HIV within marriages in Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Roseanne Njiru --- Department of Sociology and Social Work, KenyaGender inequalities drive the HIV risk within marriages in Kenya, yet strategies to combat the spread of HIV are limited by their emphasis on the individual or dyadic relationship rather than the wider social-cultural relations that shape gender relations within... -
The prevalence and risk factors for diabetes mellitus in healthcare workers at Tygerberg hospital, Cape Town, South Africa: a retrospective study
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Ankia Coetzee --- Department of Medicine, Division of Endocrinology, South Africa Amanda Beukes --- Department of Medicine, South Africa Reinhardt Dreyer --- Department of Medicine, South Africa Salaamah Solomon --- Tygerberg Academic Hospital, South Africa Lourentia van Wyk --- Tygerberg Academic Hospital, South Africa Roshni Mistry --- Tygerberg Academic Hospital, South Africa Magda Conradie --- Department of Medicine, Division of Endocrinology, South Africa Mari van de Vyver --- Tygerberg Academic Hospital, South AfricaObjectives: To assess the contribution of traditional and modifiable risk factors to the overall risk and prevalence of type 2 diabetes mellitus (T2DM) amongst health workers (HWs) in the public sector. -
Primary prevention of cardiovascular disease in South African women living with HIV
Item type: Journal Article • Journal: South African Family Practice • Authors: S Hanley --- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Umlazi Clinical Research Site, Nelson R Mandela School of Medicine, South AfricaThe colliding epidemics of HIV and cardiovascular disease (CVD) are of great public health concern. People living with HIV (PLHIV) are more predisposed to CVD development as a result of a multitude of contributors. Women living with HIV (WLHIV) appear... -
Job security and workaholism among non-permanent workers: The moderating influences of corporate culture
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joon-ho Kim --- Department of Business Administration, South Korea Seung-hye Jung --- School of Dance, South Korea Soo-yun Yang --- Department of Cultural Contents, South Korea Hyun-ju Choi --- Department of Cultural & Arts Management, South KoreaThe present study examined aspects of job security, leadership risk (corporate-centric management style, short-term performance-orientedness, and subordinate authoritarianism), emotional exhaustion, and workaholism among 1 009 casual foreign workers from multicultural families living in South Korea. The nationalities of the casual... -
The driving forces behind the home bias phenomenon: Evidence from Israel
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Sivan Riff --- University of Haifa, Israel Joseph Yagil --- University of Haifa and Western Galilee College, IsraelThe home bias phenomenon is a widely investigated puzzle that is still not completely resolved. Home bias is the tendency of investors to invest excessively in domestic assets, in contradiction to the traditional optimal portfolio theories. This research attempts to... -
Artificial intelligence in today’s hotel revenue management: opportunities and risks
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Thomas Millauer --- Stenden Hotel Management School, The Netherlands Matthijs Vellekoop --- Stenden Hotel Management School, The NetherlandsThe implementation of revenue management in the hospitality industry has significantly increased in the past years. It started in the rooms departments and is slowly evolving to be further used for conference and event spaces, as well as food and... -
Prevalence of bullying victimisation and associated factors among in-school adolescents in Mozambique
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- Department of Research & Innovation, South Africa Supa Pengpid --- ASEAN Institute for Health Development, Mahidol University, Salaya, Phutthamonthon, Nakhonpathom, Thailand; Department of Research & Innovation, South AfricaThe study aimed to assess the prevalence of bullying victimisation and its correlates among middle school students in Mozambique. We analysed cross-sectional survey data from the 2015 Mozambique Global School-based Health Survey (GSHS). The sample consisted of 1 918 participants... -
Does the choice of fund performance measure matter?
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Christopher Adcock --- School of Finance and Management, UK Nelson Areal --- NIPE Research Centre, School of Economics and Management, Portugal Maria Céu Cortez --- NIPE Research Centre, School of Economics and Management, Portugal Benilde Oliveira --- School of Economics and Management, Portugal Florinda Silva --- NIPE Research Centre, School of Economics and Management, PortugalThis paper investigates whether investment strategies using rankings based on different portfolio performance measures lead to different future abnormal returns. A set of 13 commonly used risk-adjusted performance measures is applied to a dataset of US equity mutual funds over... -
Brominated flame retardants in wild bird eggs from the industrialised heartland of South Africa
Item type: Journal Article • Journal: African Zoology • Authors: LP Quinn --- National Metrology Institute of South Africa, South Africa C Roos --- Unit of Environmental Sciences and Management, South Africa R Pieters --- Unit of Environmental Sciences and Management, South Africa A Polder --- Unit of Environmental Sciences and Management, South Africa H Bouwman --- Unit of Environmental Sciences and Management, South AfricaBrominated flame-retardants (BFRs), including polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCD), were analysed in 77 eggs of 13 wild bird species from Gauteng and northern Free State (the industrial heartland of South Africa). BFRs were in all eggs, but not... -
Spatial patterns and environmental risks of ringnet fishing along the Kenyan coast
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P Thoya --- Kenya Marine and Fisheries Research Institute, Kenya S Pérez-Jorge --- Marine and Environmental Sciences Centre (MARE) and Institute of Marine Research (IMAR), Portugal GM Okemwa --- Kenya Marine and Fisheries Research Institute, Kenya H Mwamlavya --- Kenya Marine and Fisheries Research Institute, Kenya A Tuda --- Kenya Wildlife Service, Kenya N Wambiji --- Kenya Marine and Fisheries Research Institute, Kenya JM Maina --- Department of Environmental Sciences, AustraliaRingnet fishing began in the early 20th century and is practised worldwide, mainly to target nearshore pelagic species. The method was introduced to Kenya’s coastal waters by migrant fishers from Tanzania. However, the impacts of this fishing gear remain poorly... -
Expected option returns during the post-GFC era
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Cheng Yan --- , PRC Xiaoli Wu --- , UKWe investigate whether the option implied volatility predicts the future realised volatility of the underlying securities and whether volatility risk factors exploited from options are pricing factors. Our sample includes six popular stock indices such as the S&P 500 and... -
Prevalence and correlates of interpersonal violence among in-school adolescents in Tanzania
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- , Thailand Karl Peltzer --- , VietnamThe study aimed to assess the prevalence and correlates of interpersonal violence (physical attacks and physical fighting) among school-going adolescents in Tanzania. We analysed an existing data set of 3 765 adolescent learners (mean age = 14 years, SD =... -
Risk factors associated with youth gang involvement: An exploratory criminological case study analysis
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Anni Hesselink --- , South Africa Nigel Bradley Bougard --- , South AfricaThis study explored risk factors for youth gang involvement in the South African setting. Participants were five youth male gang members (between 21 to 24 years) from Gauteng province, South Africa. We interviewed them on childhood experiences they perceived to... -
Assessment of an HIV-prevention intervention for couples in peri-urban Uganda: pervasive challenges to relationship quality also challenge intervention effectiveness
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Phoebe Kajubi --- , Uganda Allison Ruark --- , USA Norman Hearst --- , USA Sam Ruteikara --- , Uganda Edward C Green --- , USAReducing multiple and concurrent partnerships has been identified as a priority in generalised HIV epidemics, yet developing successful interventions to bring about such behaviour change has proven challenging. We offered a three-session intervention aimed to improve couple relationship quality and... -
Risk-based portfolio sensitivity to covariance estimation
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Hannes du Plessis --- , Paul van Rensburg --- ,Risk-based portfolio construction methods focus on optimally extracting information from the covariance matrix of asset returns, as opposed to utilising forecasts of expected returns, in determining the portfolio allocation. This improves their robustness to estimation error in means, but this... -
Prevalence of anxiety-induced sleep disturbance and associated factors among a national sample of in-school adolescents in Benin
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- , Thailand Karl Peltzer --- , South AfricaThe goal of the study was to estimate the prevalence and correlates of anxiety-induced sleep disturbance (AISD) among adolescent school children in Benin. Nationally representative cross-sectional data were analysed from 2 536 adolescents (median age = 17 years) that participated... -
Supply chain management and organizational performance: Evidence from SMEs in South Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Welby V. Loury Okoumba --- , South Africa Chengedzai Mafini --- , South Africa Joyendu Bhadury --- , USAThe salutary impact of adopting supply chain management best practices (SCMBPs) on organizations is well documented. However, similar studies on small and medium enterprises (SMEs), especially in underdeveloped/developing economies are relatively scant in the extant literature. This is despite the... -
Loss to follow-up among female sex workers in Zambia: findings from a five-year HIV-incidence cohort
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kalonde Malama --- , France Luis Sagaon-Teyssier --- , France Andréa Gosset --- , France Rachel Parker --- , USA Kristin M Wall --- , USA Amanda Tichacek --- , USA Tyronza Sharkey --- , Zambia William Kilembe --- , Zambia Mubiana Inambao --- , Zambia Matt A Price --- , USA Bruno Spire --- , France Susan Allen --- , USAHIV-incidence studies are used to identify at-risk populations for HIV-prevention trials and interventions, but loss to follow-up (LTFU) can bias results if participants who remain differ from those who drop out. We investigated the incidence of and factors associated with... -
Environmental health risks associated with indiscriminate dumping in Lekwa Local Municipality
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Isaiah Dladla --- , South Africa Machete Machete --- , South Africa Karabo Shale --- , South AfricaThis paper presents the environmental health risks associated with indiscriminate dumping of solid waste in Lekwa Local Municipality. Structured observations were used to collect data from the identified waste dumping spots. The primary data collected involved the characterization of waste... -
Developing a satellite-based frost risk model for the Southern African commercial forestry landscape
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Riyad Ismail --- , South Africa Jacob Crous --- , South Africa Giovanni Sale --- , South Africa Andrew Morris --- , South Africa Kabir Peerbhay --- , South AfricaFrost is a sporadic meteorological event affecting the productivity of commercial forests in South Africa. Severe frost occurrences may cause irreversible damage to forest stands, slowing down tree growth or leading to tree mortality. Using the Moderate Imaging Spectrometer (spatial... -
Prevalence and associated factors of psychological distress among a national sample of in-school adolescents in Liberia
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- , Thailand Karl Peltzer --- , South AfricaThis study aimed to estimate the prevalence and correlates of psychological distress among adolescent school children in Liberia. We analysed data from a cross-sectional nationally representative sample of 2 744 school adolescents (median: 18 years) gathered by the Liberia Global... -
Public perception of risk and coping response to COVID-19 in China: The moderating role of negative emotion
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yongtao Gan --- , China Jing Zhang --- , China Zhiyue Quan --- , ChinaThis study investigated the moderating role of negative emotion on risk perception and risk response during the COVID-19 pandemic. We administered a survey to 1 452 participants from six provinces in China (female = 72. 4%; mean age = 33... -
Nutrition risk and validation of an HIV disease-specific nutrition screening tool in Ghana
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Lauri Wright --- , Maxwell Bisala Konlan --- , Laurene Boateng --- , James B Epps --- , -
Risk assessment of polycyclic aromatic hydrocarbons in the sediments of the Ekulu River in Enugu State in Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Uzochukwu C Ugochukwu --- , Nigeria Onyechi H Onuora --- , Nigeria Leonard Kurumeh --- , Nigeria Uchenna I Mbakwe --- , Nigeria Obiageli J Okolo --- , Nigeria Amaka L Onuorah --- , NigeriaThe human health and ecological risks resulting from exposure to polycyclic aromatic hydrocarbons (PAHs) in the Ekulu River sediments were estimated in this study. The Ekulu River receives pollutants potentially containing polycyclic aromatic hydrocarbons (PAHs) from runoff from automotive workshops... -
The pricing of skewness: Evidence from the Johannesburg Stock Exchange
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Johannes Petrus Steyn --- , South Africa Lomari Theart --- , South AfricaThe historical skewness of stock return distributions could potentially affect future stock returns. Previous studies in developed markets have shown that investors prefer shares exhibiting positively skewed or ‘lottery-like’ payoff profiles. The higher demand for these shares results in a... -
Correctional officers’ perceptions of resilience of at-risk youth in a correctional centre in Eswatini
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sifiso B. Shabangu --- , South Africa Vicki Koen --- , South AfricaThis study aimed to explore and describe correctional officers’ perceptions of resilience of at-risk youth in a correctional centre in Eswatini. Applying a qualitative explorative-descriptive research design, we conducted a World Café with 15 purposively sampled correctional officers at an... -
Prevalence and associated factors of loneliness among a national sample of in-school adolescents in Morocco
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- , Thailand Karl Peltzer --- , South AfricaThe goal of the study was to estimate the prevalence and correlates of loneliness among adolescents in Morocco. Data were analysed from 6 745 school adolescents (median age = 15 years) that participated in the 2016 Morocco cross-sectional Global School-Based... -
Structural equation modelling of risk indicators for suicidal thoughts and behaviours among Nigerian Yorùbá youth
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kehinde Clement Lawrence --- , South AfricaIn the past, suicide was considered as an abomination among the Yorùbás, yet it was also perceived as an acceptable and honourable way to escape dishonour, indignity, or shame. This study investigated psychosocial and personal risk indicators for suicidal thoughts... -
Auto insurance premiums in Ghana: An Autoregressive Distributed Lag model approach to risk exposure variables
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacob Azaare --- , China Zhao Wu --- , China Bernard Gumah --- , China Enock Mintah Ampaw --- , Ghana Socrates Modzi Kwadwo --- , GermanyThis study examined risk exposure and auto insurance premium determinants in Ghana. We analysed an existing data set of 23 434 policies (without claims = 84.1%, policies with claims = 15.9%; comprehensive policies = 48.0%, third-party policies = 52.0%) applying... -
Barriers to condom use in casual sexual relationships known as ukujola in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mbongeleni Thembalihle Mgwaba --- , South Africa Pranitha Maharaj --- , South AfricaSouth Africa has the largest number of people living with HIV in the world. Of the nine provinces in South Africa, KwaZulu-Natal is the worst affected. HIV is largely transmitted through unprotected penetrative sexual intercourse. Male latex condoms are central... -
Adherence to safety practices and risks associated with toxic chemicals in the research and postgraduate laboratories at Sefako Makgatho Health Sciences University, Pretoria, South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Liziwe Lizbeth Mugivhisa --- , South Africa Khanyi Baloyi --- , South Africa Joshua Oluwole Olowoyo --- , South AfricaThe study investigated the knowledge of postgraduate students in the Biology, Chemistry and Biochemistry departments regarding safety practices, protective measures and risks associated with toxic chemicals in the postgraduate and research laboratories. The study was exploratory and was conducted through... -
Problem drinking among a cross-sectional national sample of adolescents in South Africa: Prevalence and associated factors
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- , Thailand Karl Peltzer --- , South AfricaThe goal of this investigation was to assess the prevalence and correlates of problem drinking among adolescents in South Africa. Data were from a national cross-sectional survey of 2 290 adolescents that participated in the 2012 South African National Health... -
Population Viability Analysis for a vulnerable ground-nesting species, the Cape Rockjumper Chaetops frenatus: assessing juvenile mortality as a potential area for conservation management
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Krista N Oswald --- , South Africa Alan TK Lee --- , South AfricaAs an endemic bird to the Fynbos biome, prominently featured in literature and marketing material for the avifauna of the continent, the Cape Rockjumper Chaetops frenatus is an iconic species of South Africa. Building on studies from the past decade,... -
Comparative biotolerance of water spinach, Ipomoea aquatica, to heavy metal pollution in the Agodi Reservoir and the Ogunpa River, Oyo State, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PO Ogungbile --- , Nigeria PO Ayeku --- , Nigeria AO Ajibare --- , NigeriaThe biotolerance of water spinach (Ipomoea aquatica) to heavy metals was investigated in the Agodi Reservoir and its supplying source, the Ogunpa River, to examine the impact of aquatic pollution. I. aquatica was collected monthly from the Ogunpa River and... -
The relationship between tax transparency and tax avoidance
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Madeleine Stiglingh --- , South Africa Anna-Retha Smit --- , South Africa Anri Smit --- , South AfricaAll over the world, the tax avoidance practices of large multinational firms have received much media attention over the last few years, which has become a prominent reputational risk for many firms. In addition to the possible reputational risk stemming... -
Cumulative risk and school bullying experiences: Effects of moral disengagement and gender
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Huai-Bin Jiang --- , China Hui-Ling Zhou --- , China Bin Zhang --- , China Han-Yu Liang --- , China Jing-Jing Lian --- , China Yang-Yu Zhang --- , ChinaWe examined the mediation effect of moral disengagement in the association between children’s cumulative risk and high experience of school bullying. Additionally, we determined whether this mediating process was moderated by gender. A sample of 509 Chinese adolescent school students... -
A behavioural and HIV serological survey among detainees of Ankazondrano jail in Fianarantsoa, Madagascar
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jocia Fenomanana --- , Madagascar Fidiniaina Mamy Randriatsarafara --- , Madagascar Fabien Florian Ranampy --- , Madagascar Zely Arivelo Randriamanantany --- , MadagascarAims: The prevalence of HIV in the general population of Madagascar is 0.3%. Some population groups, especially detainees are vulnerable to this infection. Our study was the first combined HIV survey of the detainees of Ankazondrano jail in Fianarantsoa. The... -
Predicting corporate defaults using machine learning with geometric-lag variables
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Hyeongjun Kim --- , Korea Hoon Cho --- , Korea Doojin Ryu --- , KoreaThis study examines whether corporate default prediction techniques based on machine learning can achieve better performance by using geometrically declining weighted average values of the time series variables, that is, geometric-lag variables. We test four machine learning algorithms: logistic regression,... -
CFOs versus CEOs: Risk-taking incentives and decisions of corporate policies
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Han-Ching Huang --- , Taiwan Pei-Shan Tung --- ,We undertake a broad-based study of the effect of the equity incentives of Chief Executive Officers (CEOs) and Chief Financial Officers (CFOs) on decisions relating to corporate policies and find that the risk-taking incentives of acquirer CEOs have a greater... -
“I prefer to take pills when I plan to have sex”: Perceptions of on-demand versus daily oral pre-exposure prophylaxis among adolescents in Kampala, Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rachel Kawuma --- , Uganda Zam Nabalwanyi --- , Uganda Janet Seeley --- , Uganda Yunia Mayanja --- , UgandaThere is limited information about the use of on-demand and daily pre-exposure prophylaxis (PrEP) among adolescents and young people (AYP) in sub-Saharan Africa. We explored perceptions of both regimens among 14- to 19-year-olds perceived to be at high risk of... -
Estimation of pesticide mixture interaction in Nile tilapia (Oreochromis niloticus) using survival analysis
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: KC Kanu --- , Nigeria NH Amaeze --- , Nigeria AA Otitoloju --- , NigeriaThe acute toxicity of the pesticides atrazine, mancozeb, chlorpyrifos and lambda-cyhalothrin, acting singly and jointly, was assessed on Nile tilapia (Oreochromis niloticus) fingerlings. Median lethal concentration (LC50), median lethal time (LT50), and mixture interaction were estimated, whereas survival analysis was... -
Introducing a nutritional risk screening tool in a South African hospital
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Lesego Ndhlovu --- , Tim De Maayer --- , -
Fear at the top: killer whale predation drives white shark absence at South Africa’s largest aggregation site
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AV Towner --- , South Africa RGA Watson --- , South Africa AA Kock --- , South Africa Y Papastamatiou --- , United States M Sturup --- , South Africa E Gennari --- , South Africa K Baker --- , South Africa T Booth --- , South Africa M Dicken --- , South Africa W Chivell --- , South Africa S Elwen --- , South Africa T Kaschke --- , South Africa D Edwards --- , South Africa MJ Smale --- , South AfricaRisk-induced fear effects exerted by top predators are pervasive in terrestrial and marine systems, with lasting impacts on ecosystem structure and function. The loss of top predators can disrupt ecosystems and trigger trophic cascades, but the introduction of novel apex... -
Negative social interactions and the persistence of depression: Evidence from the women of Westbury, South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Cyril Dalene Rathnum --- , South Africa Jacqueline Moodley --- , South AfricaWe explored women’s experiences of depression from the perspective of negative social interactions at the personal, family, and community levels. Informants were seven coloured women from Westbury, Johannesburg, South Africa (aged 28 – 56 years old). The participants answered open-ended... -
The asymmetric relationship between volatility index and volatility-of-volatility index
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Adian McFarlane --- , Ontario Canada Anupam Das --- , Canada Young Cheol Jung --- , CanadaWe use the nonlinear autoregressive distributed lag model to assess the asymmetric relationship between the Chicago Board Options Exchange’s volatility index (VIX) and volatility-of-volatility index (VVIX) over the period January 2007 to March 2020. To control for potentially confounding factors,... -
Prevalence study of type 2 diabetes mellitus in the Ashanti region of Ghana: a systematic review of risk factors
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Daniel Katey --- , Ghana Abigail Akua Addo --- , Ghana Kabila Abass --- , Ghana Anthony Kwame Morgan --- , Ghana -
A literature- and senior stakeholder-informed model of southern African programme risk management challenges
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Emmanuel Mulambya --- North-West University, Republic of South Africa Hermien Zaaiman --- North-West University, Republic of South AfricaStrategic capital infrastructure programmes are risky endeavours due to the complexity inherent in implementing and managing such large project-based programmes. Successful programmes demand well-developed skills in the under-researched and underdeveloped discipline of programme risk management. The purpose of this qualitative... -
Exploring the impacts of and reactions to HIV diagnosis in older adults: narratives from Ga-Rankuwa, South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mathew Nyashanu --- , United Kingdom Eucebious Lekalakala-Mokgele --- , South AfricaThere is an increase in prevalence of human immunodeficiency virus (HIV) infection among older adults. This new emerging social group is being overlooked, owing to the focus on groups that have traditionally been regarded as “high risk”. This article set... -
An analysis of the relationship between HIV risk self-perception with sexual behaviour and HIV status in South African older adults
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Makandwe Nyirenda --- , South Africa Nonzwakazi Mnqonywa --- , South Africa Bomkazi Tutshana --- , South Africa Jayganthie Naidoo --- , South Africa Paul Kowal --- , Australia Joel Negin --- , AustraliaObjective: To examine how older adults perceive their own risk of acquiring HIV; and how this perception correlates with their sexual behaviour and HIV status. -
The application of Bayesian networks to evaluate risks from multiple stressors to water quality of freshwater ecosystems
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: V Wepener --- , South Africa GC O’Brien --- , South AfricaIt is difficult to predict and manage the ecological consequences of multiple water quality stressors on our freshwater systems. This is due to the dynamism of the source-stressor-response relationships and multiple factors including lack of data, complex impact pathways and... -
Crested Guineafowl and samango monkey associations
Item type: Journal Article • Journal: African Zoology • Authors: Jacco J Leemans --- , The Netherlands Birthe Linden --- , South Africa Frank van Langevelde --- , The NetherlandsAssociations between animals of different species have been observed for a large variety of taxa. These polyspecific groups are thought to provide advantages to at least one of the species involved, especially foraging benefits or reduced predation risk. In the... -
The effect of vitamins B12, B6 and folate supplementation on homocysteine metabolism in a low-income, urbanised, black elderly community in South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: CJ Grobler --- Vaal University of Technology, South Africa WH Oldewage-Theron --- Texas Tech University (TTU), United States of America JM Chalwe --- Vaal University of Technology, South Africa -
Factors associated with single and multiple suicide attempts in adolescent school children in Morocco: A national cross-sectional survey
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- University of the Free State, South Africa Supa Pengpid --- Mahidol University, ThailandThe study aimed to assess factors associated with multiple suicide attempts (MSA) in adolescents with a history of suicide attempts in Morocco. National cross-sectional data from the Global School-Based Student Health Survey (GSHS) in Morocco in 2016 were analysed. Students... -
Effect of entrepreneurial orientation on business performance of young women agribusiness owners in Benin: Do social and business environments matter?
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Smith A. R. Dossou --- University of Abomey-Calavi, Benin Razack Adeoti --- International Institute of Tropical Agriculture (IITA), Nigeria Augustin K. N. Aoudji --- University of Abomey-Calavi, Benin Mignouna Djana --- International Institute of Tropical Agriculture (IITA), NigeriaThis research examined how key entrepreneurial orientation (EO) dimensions influence business performance of young women agribusiness owners, as well as the moderating effects of social and business environments on these relationships. Data were collected from a sample of 365 young... -
Impact of long-term civil disorders and wars on the trajectory of HIV epidemics in sub-Saharan Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: David Gisselquist --- , USAFrom the mid-1970s, seven countries in sub-Saharan Africa have experienced civil disorders and wars lasting for at least 10 years. In two — Sierra Leone during 1991–2002, and Somalia from 1988 and continuing — adult HIV prevalence remained below 1%... -
Development of an HIV risk reduction counselling intervention for use in South African sexually transmitted infection clinics
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Vuyisile Mathiti --- University of the Western Cape, Leickness C. Simbayi --- Social Aspects of HIV/AIDS and Health research programme, Human Sciences Research Council, Sean Jooste --- Social Aspects of HIV/AIDS and Health research programme, Human Sciences Research Council, Queen Kekana --- Social Aspects of HIV/AIDS and Health research programme, Human Sciences Research Council, Xolani P. Nibe --- Social Aspects of HIV/AIDS and Health research programme, Human Sciences Research Council, Luvuyo Shasha --- Social Aspects of HIV/AIDS and Health research programme, Human Sciences Research Council, Philasande Bidla --- Social Aspects of HIV/AIDS and Health research programme, Human Sciences Research Council, Pamela Magubane --- Social Aspects of HIV/AIDS and Health research programme, Human Sciences Research Council, Demetria Cain --- Psychology Department, University of Connecticut, Charsey Cherry --- Psychology Department, University of Connecticut, Seth C. Kalichman --- Psychology Department, University of Connecticut,South Africa urgently needs HIV prevention interventions that can be disseminated for use in clinical and community settings. A brief theory-based HIV risk reduction counselling intervention originally developed in the USA has recently been adapted for use in a South... -
The use of culturally themed HIV messages and their implications for future behaviour change communication campaigns: the case of Botswana
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Oleosi Ntshebe --- Department of Population Studies, University of Botswana, Joseph M.N. Pitso --- Department of Population Studies, University of Botswana, Alinah Kelo Segobye --- University of Botswana,The ‘ABC’ approach promoted at the beginning of the HIV/AIDS epidemic in Botswana has failed to yield significant behaviour change. Formative research was conducted in urban, semi-urban and rural areas to explore how the use of sociocultural messages depicted in... -
Difficult choices: Infant feeding experiences of HIV-positive mothers in northern Tanzania
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Sebalda Charles Leshabari --- Muhimbili University College of Health Sciences, Astrid Blystad --- University of Bergen, Karen Marie Moland --- Bergen University College,Infant feeding represents a great challenge in the prevention of mother-to-child transmission of HIV (pMTCT). The international guidelines informing infant feeding counselling suggest feeding methods that reduce the risk of HIV transmission, and discourage mixed feeding (combining breastfeeding with other... -
HIV/AIDS prevention through peer education and support in secondary schools in South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Maretha Visser --- Department of Psychology, University of Pretoria,The implementation and evaluation of a peer education and support programme in secondary schools to prevent and reduce high-risk sexual behaviour amongst adolescents is discussed. The aims of the programme were to provide accurate information about HIV/AIDS, discuss and reconsider... -
Rapid assessment of drug use and sexual HIV risk patterns among vulnerable drugusing populations in Cape Town, Durban and Pretoria, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Charles Parry --- Alcohol and Drug Abuse Research Unit (ADARU), South African Medical Research Council (MRC), Petal Petersen --- ADARU/MRC, Tara Carney --- ADARU/MRC, Sarah Dewing [B0004] Richard Needle --- Vulnerable Populations Project of the Global AIDS Program (GAP), Centers of Disease Control,This exploratory study examines the links between drug use and high-risk sexual practices and HIV in vulnerable drug-using populations in South Africa, including commercial sex workers (CSWs), men who have sex with men (MSM), injecting drug users (IDUs) and non-injecting... -
SISTA South Africa: The adaptation of an efficacious HIV prevention trial conducted with African-American women for isiXhosa-speaking South African women
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Dorina Saleh-Onoya [CXX0001] Nikia Danette Braxton --- Rollins School of Public Health Department of Behavioral Sciences and Health Education, Emory University , Sibusiso Sifunda --- Health Promotion R & D Unit, Medical Research Council (MRC), Priscilla Reddy --- Health Promotion R & D Unit, Medical Research Council (MRC), Robert Ruiter --- Maastricht University, Bart van den Borne [B0006] Tiffany Pennick Walters --- Emory University Rollins School of Public Health, Delia Lang --- Rollins School of Public Health Department of Behavioral Sciences and Health Education, Emory University , Gina M Wingood --- Department of Behavioral Science and Health Education, Rollins School of Public Health,Although new HIV treatments continue to offer hope for individuals living with HIV, behavioural interventions shown to reduce HIV risk behaviour remain one of the most powerful tools in curbing the HIV epidemic. Unfortunately, the development of evidencebased HIV interventions... -
Sexual risk reduction among Zambian couples
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Ndashi Chitalu --- Department of Medicine, University of Zambia School of Medicine, Phillimon Ndubani --- Institute for Social and Economic Research, University of Zambia, Miriam Mumbi --- University of Zambia School of Medicine, Deborah L Jones --- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Stephen M Weiss --- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Olga Villar-Loubet --- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Szonja Vamos --- University of Miami Miller School of Medicine, Drenna Waldrop-Valverde --- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine,Zambia has over 1 million HIV infections nationwide and an urban prevalence rate of 23%. This study compared the impact of male involvement in multiple and single session risk reduction interventions among inconsistent condom users in Zambia and the role... -
Descriptive systematic review of sub-Saharan African studies on the association between alcohol use and HIV infection
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Anne Pithey --- Alcohol and Drug Abuse Research Unit (ADARU), South African Medical Research Council (MRC), Charles Parry --- Alcohol and Drug Abuse Research Unit (ADARU), South African Medical Research Council (MRC),The purpose of this review was to identify and assess studies that have quantified the association between alcohol consumption and HIV infection in sub-Saharan Africa. PubMed, CAB Abstracts and article references were searched to identify studies published in English between... -
Perception of risk of HIV and sexual risk behaviours among students in the United States, Turkey and South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Adedeji Adefuye --- HIV/AIDS Research and Policy Institute, Tititlayo C Abiona --- HIV/AIDS Research and Policy Institute, Joseph A Balogun --- College of Health Sciences, Chicago State University, USA Seyi Ladele Amosun --- Division of Physiotherapy at the School of Health & Rehabilitation Sciences, Faculty of Health Sciences, University of Cape Town, South Africa Jose Frantz --- Department of Physiotherapy, University of the Western Cape, South Africa Yavuz Yakut --- Department of Physiotherapy and Rehabilitation of Faculty of Health Sciences, Hacettepe University, TurkeyThe aim of this study was to examine HIV sexual risk behaviours and perception of HIV risk among 1 095 students from the United States of America (US), Turkey and South Africa. Randomly selected students who were enrolled in general... -
Patients-to-healthcare workers HIV transmission risk from sharp injuries, Southern Ethiopia
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Biruck Desalegn [d204e18] Hunachew Beyene Ryo YamadaBackground: Accidental needlestick injury rate among healthcare workers in Hawassa is extremely high. Epidemiological findings proved the infectious potential of this injury contaminated with a Human Immunodeficiency Virus (HIV)-infected patient's blood. -
Social and cultural aspects of HIV and AIDS in West Africa: A narrative review of qualitative research
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Helle Samuelsen [d133e18] Ole Norgaard Lise Rosendal OstergaardWith the increasing focus on the role of social aspects of the HIV epidemic in sub-Saharan Africa, the need for an overview of existing research dealing with such issues has become more urgent. The objective of this article is to... -
Drug trafficking, use, and HIV risk: The need for comprehensive interventions
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Jessie Mbwambo [d186e18] Sheryl A. McCurdy Bronwyn Myers Barrot Lambdin Gad Paul Kilonzo Pamela KaduriThe rapid increase in communication and transportation between Africa and other continents as well as the erosion of social fabric attended by poverty, ethnic conflicts, and civil wars has led to increased trafficking and consumption of illicit drugs. Cannabis dominates... -
Taxi ‘sugar daddies’ and taxi queens: Male taxi driver attitudes regarding transactional relationships in the Western Cape, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Cheryl Potgieter [d53e18] Anna Strebel Tamara Shefer Claire WagnerMedia reports are emerging on the phenomenon of young girls who travel with older mini-bus taxi drivers, and who are thought to have sex with the drivers in exchange for gifts and money. The extent to which such relationships might... -
Application of the information, motivation and behavioural skills model for targeting HIV risk behaviour amongst adolescent learners in South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Misheck Ndebele [d94e14] Mambwe Kasese-Hara Michael GreylingThis paper discusses the application of an information, motivation and behavioural skills (IMB) model in a school-based programme for the reduction of HIV risk behaviour among 259 Grade 11 learners in two high schools in Alexandra township, Johannesburg. School 1... -
Understanding culture and HIV/AIDS in sub-Saharan Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Steven Sovran [d378e18]Early in the study of HIV/AIDS, culture was invoked to explain differences in the disease patterns between sub-Saharan Africa and Western countries. Unfortunately, in an attempt to explain the statistics, many of the presumed risk factors were impugned in the... -
HIV knowledge, disclosure and sexual risk among pregnant women and their partners in rural South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Molatelo Elisa Shikwane --- , South Africa Olga M. Villar-Loubet --- , USA Stephen M. Weiss --- , USA Karl Peltzer --- , South Africa Deborah L. Jones --- , USAPartner involvement has been deemed fundamental for the prevention of mother-to-child transmission (PMTCT) of HIV, although it remains difficult to achieve. This study aimed to explore the attitudes and behaviours of pregnant women and their partners who participated in a... -
The association between social networks and self-rated risk of HIV infection among secondary school students in Moshi Municipality, Tanzania
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Elizabeth J. Lyimo --- , Tanzania Jim Todd --- , UK Lisa Ann Richey --- , , Denmark Bernard Njau --- , TanzaniaThis study describes the social networks of secondary school students in Moshi Municipality, and their association with self-rated risk of human immunodeficiency virus (HIV) infection. A cross-sectional analytical study was conducted among 300 students aged 15–24 years in 5 secondary... -
Perception of risk of HIV infections and sexual behaviour of the sexually active university students in Zimbabwe
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Njabulo Nkomazana --- , , Republic of South Africa Pranitha Maharaj --- , , Republic of South AfricaThe study sought to establish university students' perceptions of risk of HIV infections. A cross-sectional survey was conducted on 345 sexually active students at two universities in Zimbabwe (one state and one private). Results revealed that above a quarter of... -
Prevalence and mitigation strategies of HIV/AIDS infection risks in Namibian tertiary education institutional hostels
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Roderick F. Zimba --- , Namibia Gilbert N. Likando --- , NamibiaThe purpose of this study was to investigate risk factors that could promote HIV infection amongst adolescents and young adults living in tertiary educational institutional hostels in Namibia. Employing structured questionnaires and focus group discussions, we sought to answer questions... -
Understanding of the risk of HIV infection among the elderly in Ga-Rankuwa, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Eucebious Lekalakala-Mokgele --- , , South AfricaThe literature pertaining to the elderly shows that HIV infection among this population is on the increase, suggesting that the elderly population engages in activities risky for HIV infection. Reports on such behaviour include frequent sexual relations with much younger... -
High-risk behaviors among adult men and women in Botswana: Implications for HIV/AIDS prevention efforts
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Mpho Keetile --- , , BotswanaThe government of Botswana has been spending a lot of money in the prevention, treatment, care and support for HIV/AIDS patient for decades. This paper uses data from the third Botswana AIDS Impact Survey (BAIS III) to explore high-risk behaviors... -
Trends in HIV risk behaviour of incoming first-year students at a South African university: 2007–2012
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Rénette J. Blignaut --- , , South Africa Joachim Jacobs --- , South Africa Tania Vergnani --- , South AfricaThe aim of the research on which this article is based was to understand the behavioural changes of the target student population over time to ensure that future prevention programmes are more effective in changing behaviour. This study reports on... -
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... -
Qualitative evaluation of selected social factors that impact sexual risk-taking behaviour among African students in Kwazulu-Natal, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Ndumiso Daluxolo Ngidi --- , , South Africa Sibusiso Moyo --- , South Africa Thobile Zulu --- , , South Africa Jamila Khatoon Adam --- , South Africa Suresh Babu Naidu Krishna --- , South AfricaBackground: The incidence of HIV and AIDS continues to be a source of great concern within universities in South Africa. Furthermore, university students constitute an important community in the intervention against the HIV/AIDS epidemic. Students in the age group of... -
Third-world realities in a first-world setting: A study of the HIV/AIDS-related conditions and risk behaviors of sex trade workers in Saskatoon, Saskatchewan, Canada
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Yelena Bird --- at the , Canada Mark Lemstra --- at the , Canada Marla Rogers --- at the , Canada John Moraros --- at the , CanadaThe transmission and prevalence of Human Immunodeficiency Virus (HIV) among those employed as sex trade workers (STW) is a major public health concern. The present study describes the self-reported responses of 340 STW, at-risk for contracting HIV. The participants were... -
Addressing adolescents’ risk and protective factors related to risky behaviours: Findings from a school-based peer-education evaluation in the Western Cape
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Furzana Timol --- , South Africa Mohammed Yacoob Vawda --- , South Africa Arvin Bhana --- , South Africa Benita Moolman --- , South Africa Mokhantso Makoae --- , South Africa Sharlene Swartz --- , South AfricaBackground: Peer-education programmes aim to bring about attitudinal and behavioural changes in their target audience. In the South African educational context, peer education is a favoured approach in dealing with issues such as HIV and AIDS, sexual decision-making and substance... -
Rethinking HIV-prevention for school-going young people based on current behaviour patterns
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Maretha Visser --- , , South AfricaThe aim of the research was to gain increased knowledge regarding the sexual risk behaviour of school-going young people in South Africa after two decades of HIV-education in schools, to contribute to the development of improved HIV prevention strategies. In... -
Reducing substance use and risky sexual behaviour among drug users in Durban, South Africa: Assessing the impact of community-level risk-reduction interventions
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: C.D.H. Parry --- , South Africa T. Carney --- , South Africa P. Petersen Williams --- , South AfricaAlcohol and other drug (AOD) use is increasingly recognised as having a direct and indirect effect on the transmission of human immunodeficiency virus (HIV). However, there is evidence to suggest that drug- and sex-related HIV risk-reduction interventions targeted at drug... -
Modelling self-assessed vulnerability to HIV and its associated factors in a HIV-burdened country
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: A. F. Fagbamigbe --- , , South Africa A. M. Lawal --- , , South Africa E. S. Idemudia --- , , South AfricaBackground: Globally, individuals’ self-assessment of vulnerability to HIV infection is important to maintain safer sexual behaviour and reduce risky behaviours. However, determinants of self-perceived risk of HIV infection are not well documented and differ. We assessed the level of self-perceived... -
Spectrum of female commercial sex work in Bangui, Central African Republic
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Jean De Dieu Longo --- , Central African Republic Marcel Mbéko Simaléko --- , Central African Republic Richard Ngbale --- , Central African Republic Gérard Grésenguet --- , Central African Republic Gilles Brücker --- , , France Laurent Bélec --- , , FranceClassification of professional and non-professional female sex workers (FSWs) into different categories, never previously reported in the Central African Republic (CAR), may be useful to assess the dynamics of the human immunodeficiency virus (HIV) epidemic, design operational intervention programmes to... -
Psychosocial factors predicting risky sexual behaviour among long distance truck drivers in Lagos, Nigeria
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Abiodun Musbau Lawal --- , , Nigeria Benjamin Oladapo Olley --- , , NigeriaLong distance truck drivers (LDTDs) have been identified as one of the groups at higher risk for human immunodeficiency virus (HIV) infection. Understanding how certain social and psychological variables that have a strong theoretical basis contribute to sexual risk behaviour... -
Longitudinal analysis of HIV risk behaviour patterns and their predictors among public primary care patients with tuberculosis in South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Karl Peltzer --- , , South AfricaThe goal of this study was to identify various HIV risk behaviours among tuberculosis (TB) patients in a longitudinal study design in South Africa. In 42 public primary healthcare facilities in three districts in three provinces, adult new TB and... -
Social and behavioural factors associated with risky sexual behaviours among university students in nine ASEAN countries: a multi-country cross-sectional study
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Siyan Yi --- , , Singapore Vannarath Te --- , , Cambodia Supa Pengpid --- , , Thailand Karl Peltzer --- , , South AfricaWhile university students are potential human resources, this population group is particularly involved in health risk behaviours. Preventing risky sexual behaviours among them would contribute to prevention of HIV, sexually transmitted infections (STIs), and unwanted pregnancies, which have posed a... -
Health-related quality of life and associated factors in adults living with HIV in Rwanda
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Juvenal Biraguma --- , , Rwanda Eugene Mutimura --- , , Rwanda José M Frantz --- , , South AfricaIn Rwanda, as in other sub-Saharan African (SSA) countries, life expectancy of people living with HIV (PLWH) has increased dramatically as a result of combined antiretroviral therapy (cART). People living with HIV can now live longer but with increasing rates... -
Factors associated with knowledge and awareness of HIV/AIDS among married women in Bangladesh: evidence from a nationally representative survey
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Md. Ashiqul Haque --- , , Bangladesh Md. Sha Newaj Hossain --- , , Bangladesh Muhammad Abdul Baker Chowdhury --- , , USA Md. Jamal Uddin --- , , BangladeshWomen in Bangladesh share a greater risk of Human Immunodeficiency Virus (HIV)/Acquired Immune Deficiency Syndrome (AIDS) infection compared to men. Levels of knowledge and awareness largely contribute to the prevalence of the HIV epidemic and its consequences. So, it is... -
Effects of adolescent exposure to behaviour change interventions on their HIV risk reduction in Northern Malawi: a situation analysis
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: M. Mwale --- , , Malawi A. S. Muula --- , , MalawiUnderstanding adolescents’ translation of HIV and AIDS-related behaviour change interventions (BCI) knowledge and skills into expected behavioural outcomes helps us appreciate behaviour change dynamics among young people and informs evidence-based programming. We explored the effects of adolescents’ exposure to BCI... -
HIV fatalism and engagement in transactional sex among Ugandan fisherfolk living with HIV
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Katelyn M. Sileo --- , , USA Laura M. Bogart --- , USA Glenn J. Wagner --- , USA William Musoke --- , Uganda Rose Naigino --- , , Uganda Barbara Mukasa --- , Uganda Rhoda K. Wanyenze --- , , UgandaHIV fatalism, or the belief that HIV acquisition and mortality is out of one's control, is thought to contribute to HIV risk in fishing populations in East Africa. The objective of this cross-sectional study was to investigate the association between... -
A weighted bootstrap approach to logistic regression modelling in identifying risk behaviours associated with sexual activity
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Humphrey Brydon --- , , South Africa Rénette Blignaut --- , , South Africa Joachim Jacobs --- , , South AfricaThe latest population estimates released by Statistics South Africa indicate that 25.03% of all deaths in 2017 in South Africa were AIDS-related. Along with these results, it is also reported that 7.06% of the population were living with HIV, with... -
Risky sexual behaviours among young people in sub-Saharan Africa: how can parents use the Ottawa Charter for Health Promotion for change?
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Elvis Tarkang --- , , Ghana Lilian Pencille --- , Cameroon Hubert Amu --- , , Ghana Joyce Komesour --- , , Ghana Prosper Lutala --- , , MalawiDespite progress made in the treatment of HIV and AIDS by making available the antiretroviral treatment in Africa, youth are still struggling with inadequate knowledge, a negative attitude towards AIDS and high-risk sexual behaviour. All of these are compounded by... -
Sexual risk behaviour and its correlates among adolescents in Mozambique: results from a national school survey in 2015
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Supa Pengpid --- Mahidol University, Thailand Karl Peltzer --- University of the Free State, South AfricaThe study aimed to assess the prevalence and correlates of sexual risk behaviours among adolescents in Mozambique. In the cross-sectional ‘Global School-Based Health Survey (GSHS)’, 1918 students aged 11–18 years from Mozambique responded to a questionnaire in 2015. More than... -
Challenges with couples HIV counselling and testing among black MSM students: perspectives of university students in Durban, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Geogina Charity Gumindega --- University of KwaZulu-Natal, South Africa Pranitha Maharaj --- University of KwaZulu-Natal, South AfricaResearch suggests that HIV infections among men who have sex with men (MSM) are acquired from primary partners, yet MSM continually fail to take part in couples HIV counselling and testing (CHCT). To identify factors that inhibit MSM in universities... -
The Madagascan spiny-tailed iguana alters the sequence of anti-predator responses depending on predator types
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Ryo Ito --- Kyoto University, Japan Akira Mori --- Kyoto University, Kitashirakawa-Oiwakecho, JapanSome prey are able to avoid specific predators by altering defensive behaviours depending on predator type. In the Ampijoroa forest of Ankarafantsika National Park in Madagascar, Madagascan spiny-tailed iguanas (Oplurus cuvieri cuvieri) inhabit a species rich vertebrate community and are... -
Southern mullets (Chelon richardsonii) as a potential biological indicator for mercury pollution in the Walvis Bay lagoon, Namibia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Veronica Kaleinasho Kapula --- University of Namibia, Namibia Hilkka Opolili Ndahafa Ndjaula --- University of Namibia, Namibia Stephanus Hamutenya --- , Namibia Johannes Angala Iitembu --- University of Namibia, NamibiaSouthern mullet Chelon richardsonii is one of the important fish species found in the Walvis Bay lagoon (WBL) that is commercially exploited for local consumption. The southern mullet is, however, exposed to mercury (Hg) found in sediments, which forms part... -
Factors associated with buying sex and the knowledge that condoms prevent HIV among long-distance truck drivers at Kazungula weighbridge terminal, Chobe District, Botswana
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Wada Gaolaolwe --- Lobatse Institute of Health Sciences, Botswana Mathildah Mokgatle --- Sefako Makgatho Health Sciences University, South AfricaBackground: Long-distance truck drivers (LDTDs) have a higher rate of HIV infection compared to the general population. This is due to their living and working conditions which predispose them to riskier sexual behaviours. Inadequate knowledge of HIV and AIDS, coupled... -
Tracking error volatility and relative risk budgets
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Aron Gottesman --- Pace University,This paper uses a pooled cross-sectional sample of actively managed US equity mutual funds from 1991–2022 to show that tracking error volatility (TEV) is characterised by reversion. Mutual funds with relatively high (low) TEV tend to reduce (increase) their TEV... -
Reproduction of the Western Marsh Harrier Circus aeruginosus at the El Maleh Dam reservoir in north-western Morocco
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Abdeslam Rihane --- , Morocco Abdelmottalib Nahli --- Hassan II Université Casablanca, Morocco Rhimou El Hamoumi --- Hassan II Université Casablanca, Morocco Mohamed Chlaida --- Hassan II Université Casablanca, MoroccoThe reproduction of the Western Marsh Harrier Circus aeruginosus in submerged and dried up thickets of French tamarisk Tamarix gallica at El Maleh Dam reservoir, Benslimane Province, Morocco, was studied through monitoring nests in three successive years (2017–2019). Systematic field... -
Exploring the prevalence of multiple forms of malnutrition in children 6–18 years living in the Eastern Cape, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Gugulethu T Moyo --- Texas Tech University, United States Abdulkadir A Egal --- Somali National University, Somalia Wilna Oldewage-Theron --- Texas Tech University, United States -
Feasibility study on the use of the modified Finnish Diabetes Risk Score in South African context: a case of home-based carers
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: TM Mothiba --- University of Limpopo, South Africa MH Mphasha --- University of Limpopo, South Africa TT Molepo --- University of Limpopo, South Africa H Bastiaens --- University of Antwerp, Belgium J Wens --- University of Antwerp, Belgium -
Examining swap butterfly risk premia in South Africa
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Sanveer Hariparsad --- University of Pretoria, South Africa Eben Maré --- University of Pretoria, South AfricaThis paper studies a long butterfly strategy (which is immune to parallel curve shifts but exposed to non-parallel curve shifts) on the South African interest rate swap curve. Ten swap butterfly risk factors are identified using monthly South African swap... -
Sector exposures in factor portfolios: Why neutralise when you can optimise?
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Andrew Paskaramoorthy --- University of Cape Town, South Africa Emlyn Flint --- University of Cape Town, South AfricaManaging sector risk within factor portfolios has traditionally been viewed as a binary decision problem: to neutralise sector risk or not. Challenging this view, we introduce a novel conceptual framework that allows a continuum of choices, thus reframing the problem... -
Prevalence and predictors of comorbid current alcohol, cannabis, and tobacco use among school adolescents in Liberia and Mauritius
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- University of the Free State, South AfricaThis study aimed to provide estimates on current comorbid alcohol, cannabis, and tobacco use among school adolescents in Liberia and Mauritius. Secondary data were analysed from the 2017 national and cross-sectional school health surveys in Liberia and Mauritius which sampled... -
Prevalence and psychological correlates of anxiety symptoms in subthreshold depressive adolescents with a high level of rumination response style
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xingzhi Mao --- Capital Normal University, China Qi Li --- Capital Normal University, China Fangfang Shangguan --- Capital Normal University, China Jing Xiao --- Capital Normal University, ChinaThis study examined between anxiety symptoms in subthreshold depressive (SD) adolescents with rumination and their personal predispositions. A total of 371 SD adolescents were enrolled in the study (females 55.26%, mean age = 16.34, SD = 0.96). The adolescents completed... -
“A spade was called a spade … ”: Youth and intervention implementers’ perceptions of a resilience-based HIV-prevention intervention for youth in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Fungai Mbengo --- Edith Cowan University, Australia Esther Adama --- Edith Cowan University, Australia Amanda Towell-Barnard --- Edith Cowan University, Australia Maggie Zgambo --- Edith Cowan University, AustraliaThe youth (15–24 years old) in South Africa remain at high risk of HIV infection despite varied efforts to control the disease. An understanding of the perspectives of relevant stakeholders of HIV-prevention interventions targeting the youth is important to guide... -
PrEP retention predictors among key populations in urban areas of Zimbabwe — a machine learning approach
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Bridgette Bero --- National University of Science and Technology, Zimbabwe Chipo Zidana --- Botswana International University of Science and Technology, Botswana Sarudzai Portia Showa --- National University of Science and Technology, ZimbabwePre-exposure prophylaxis (PrEP) success depends on adherence and hence retention in care. It is vital to find factors that affect PrEP retention to make this HIV-prevention method successful. The main objectives of this study were to identify the major determinants... -
Factors influencing the adoption of HIV prevention measures in low socio-economic communities of inner-city Durban, South Africa
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Firoza Haffejee --- Durban University of Technology, South Africa Jennifer Ducray --- Durban University of Technology, South Africa Jyotika Basdav --- Durban University of Technology, South Africa Colette Kell --- Durban University of Technology, South AfricaSouth Africa is the epicentre of the HIV pandemic. Although there have been health promotion education campaigns to reduce HIV incidence, these have not achieved the desired outcomes. When exploring the effectiveness of these campaigns, it is useful not only... -
Trends in the burden of type 2 diabetes and its risk factors in Saudi Arabia
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Jinchao Hua --- School of Health Economics and Management, Nanjing University of Chinese Medicine, China Binfang Huang --- School of Health Economics and Management, Nanjing University of Chinese Medicine, China ShanShan Liu --- School of Health Economics and Management, Nanjing University of Chinese Medicine, China Zhonghe Sun --- Nanjing First Hospital, Nanjing Medical University, China -
Assessment of water quality and associated human health risk of a tropical freshwater body in Edo State, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Ekene Biose --- University of Benin, Nigeria Nkonyeasua Kingsley Egun --- University of Benin, Nigeria Nkolika Uzoh --- University of Benin, Nigeria Michael Osasele Omoigberale --- University of Benin, NigeriaThe quality of freshwater sources is a key factor in sustainable development. This study investigated the water quality suitability of Ossiomo River for human consumption and the implications for public health. Water samples were collected and analysed from October 2021... -
Conditional indicators
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Dorsaf Cherif --- , Tunisia Emmanuel Lepinette --- Paris Dauphine University, FranceIn this paper, we introduce a large class of (so-called) conditional indicators, on a complete probability space with respect to a sub σ-algebra. A conditional indicator is a positive mapping, which is not necessary linear, but may share common features... -
The potential predators of pancake tortoises (Malacochersus tornieri) in Kenya
Item type: Journal Article • Journal: African Zoology • Authors: Jacob Mueti Ngwava --- Hainan Normal University, China Fanrong Xiao --- Hainan Normal University, China Patrick Kinyatta Malonza --- , Kenya Beryl Akoth Bwong --- , Kenya Hai-Tao Shi --- Hainan Normal University, ChinaStudying the interactions between prey and predators is crucial for understanding the intricacies of predator-prey dynamics and for formulating effective conservation strategies. Yet there is almost no systematic analysis of pancake tortoise predation, and its consequences on the tortoise populations... -
Risk factor profile for non-communicable diseases: findings of a STEPS survey among the support staff at the University of Pretoria, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Sithabile Nombulelo Mathunjwa --- Sefako Makgatho Health Sciences University, South Africa Tshegofatso Betty Mohlala --- University of Pretoria, South Africa Heather Modiehi Legodi --- Sefako Makgatho Health Sciences University, South Africa -
Prevalence of hyperglycaemic crisis among diabetes mellitus patients in Ethiopia, systematic review and meta-analysis
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: A Getie --- Debre Markos University, Ethiopia T Ayenew --- Debre Markos University, Ethiopia G Yilak --- Woldia University, Ethiopia M Gedfew --- Debre Markos University, Ethiopia BT Amlak --- Debre Markos University, Ethiopia A Wondmieneh --- Injibara University, Ethiopia M Bimerew --- Injibara University, Ethiopia -
The African Penguin Spheniscus demersus should be considered Critically Endangered
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Richard B Sherley --- Environment and Sustainability Institute/Centre for Ecology and Conservation, University of Exeter, United Kingdom Azwianewi B Makhado --- , South Africa Robert JM Crawford --- , South Africa Christina Hagen --- , South Africa Jessica Kemper --- , Namibia Katrin Ludynia --- University of the Western Cape, South Africa Makhudu J Masotla --- , South Africa Alistair McInnes --- , South Africa Lorien Pichegru --- Institute for Coastal and Marine Research, Nelson Mandela University, South Africa Desmond Tom --- , Namibia Leshia Upfold --- , South Africa Lauren J Waller --- University of the Western Cape, South AfricaThe African Penguin Spheniscus demersus has been considered a threatened species since 1984 and, aside from a short period around 2000, its population has been in constant decline since at least the 1950s. By combining counts of the numbers of... -
The low-volatility effect in African frontier equity markets
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Johannes Petrus Steyn --- Stellenbosch University, South Africa Evan Gilbert --- Stellenbosch University, South Africa Suzette Viviers --- Stellenbosch University, South AfricaThis study investigated the extent to which the low-risk anomaly is present in a pooled sample of nine African frontier equity markets from March 2004 to July 2023. Portfolio-level analysis was used to investigate the total stock returns of equally... -
Integration among the BRICS stock markets: Filtering out global factors
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Ayesha Sayed --- University of Cape Town, South Africa Ailie Charteris --- University of Cape Town, South AfricaDespite the prominence of the BRICS bloc, little attention has been given to their stock market co-movement. This study investigates the time- and frequency-varying integration of the BRICS stock markets including new BRICS + members with active markets. We explore whether market... -
The interconnectedness and spillover effects among economic uncertainty, energy-related risks and sovereign risk in BRICS economies
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Pascal Xavier Gnagne --- School of Economics, University of Johannesburg, South Africa Beatrice D. Simo-Kengne --- School of Economics, University of Johannesburg, South Africa Mathias Mandla Manguzvane --- School of Economics, University of Johannesburg, South AfricaEmerging economies experiencing energy-intensive growth face increased energy price volatility, which could fuel macroeconomic instability with possible implications on their debt repayment capacity. This study implements a quantile vector autoregressive model on a dataset collected between April 2011 and July... -
“We mostly focus on preventing pregnancy, we don’t really focus on preventing HIV … ”: Young people’s perceptions and priorities when preventing unplanned pregnancy and HIV
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Jewelle JS Methazia --- , South Africa Tshegofatso P Bessenaar --- , South Africa Sarah E Baum --- , USAIn South Africa, the high rate of human immunodeficiency virus (HIV) infection among young people and unplanned pregnancies remains a concern. Using a qualitative approach, this study aimed to explore how young people between 18 and 24 years old perceive... -
A review of the reported and future potential ecological impacts of the invasive freshwater snail Tarebia granifera in South Africa.
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JJ Pearson --- North-West University, South Africa R Gerber --- North-West University, South Africa W Malherbe --- North-West University, South Africa NJ Smit --- North-West University, South Africa L de Necker --- North-West University, South AfricaThe Southeast Asian gastropod Tarebia granifera is an invasive freshwater snail across several continents. Our review summarises the impacts of this invasive snail on invaded aquatic ecosystems. The most important impacts are those related to their ability to reproduce quickly... -
Prevalence and treatment-related outcome of hospitalised type 2 diabetes mellitus patients with comorbidities at an academic hospital in Johannesburg
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: T Makhabane --- University of the Witwatersrand, South Africa G Gabriels --- University of the Witwatersrand, South Africa S Chetty --- University of the Witwatersrand, South Africa -
Offsetting the void of overboarding risk: The role of financial expertise in an emerging market
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Sulaiman Ademola Oreshile --- Universiti Malaya, Malaysia Rozaimah Zainudin --- Universiti Malaya, Malaysia Nurul Shahnaz Mahdzan --- Universiti Malaya, MalaysiaTo contribute to the growing literature on the implications of board busyness for firm outcomes, this study investigates the relationship between overboarding risk (OBRisk) and firm value (FV) in an emerging market setting and whether financial expertise matters for this... -
The highest-lowest price range and the cross-sectional returns predictability
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Xiaojun Chu --- , China Shuang Song --- , ChinaMotivated by literature on heterogeneous investors, we use the difference between the highest and lowest prices to proxy the intensity of competition among bullish-bearish investors and investigate its significance in the cross-sectional pricing of stocks. Portfolio-level analyses and cross-sectional regressions... -
Does board diversity influence idiosyncratic risk: Empirical evidence from Chinese listed firms
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Furman Ali --- School of Finance, Southwestern University of Finance and Economics, China Muhammad Awais Khan --- Research Institute of Economics and Management, Southwestern University of Finance and Economics, China Zohaib Zahid --- Jiangsu University, China Khadim Hussain --- College of Economics, Shenzhen University, ChinaThis study examines the relationship between board diversity, measured as cognitive (tenure, expertise, and education) and demographic (age, gender, and nationality) diversities, and idiosyncratic risk for 2000 Chinese non-financial firms from 2008 to 2020. This study highlights that cognitive board... -
Risk spillovers among global oil & gas firms
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Oluwasegun B. Adekoya --- University of Maine, USA Johnson A. Oliyide --- University of Maine, USA Ademola B. Akinseye --- Tai Solarin University of Education, Nigeria Mamdouh Abdulaziz Saleh Al-Faryan --- University of Portsmouth, UKThis study examines the risk spillovers among the world’s top oil & gas firms, accounting for the role of environmental fiscal policies, economic policy uncertainty (EPU), and regulatory quality. We find evidence of high risk spillovers among the oil &... -
Trends and psychosocial factors associated with health-risk behaviours among university students in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marizanne Lu-Visser --- Asia University, Taiwan Laurencia Sylvano --- Asia University, Taiwan Earl Francis Infante Mallari --- Asia University, Taiwan Karl Peltzer --- Asia University, TaiwanSignificant urbanisation and increased tertiary enrolment shifted lifestyle and health behaviours among young adults in South Africa. Therefore, we investigated the trends and psychosocial determinants associated with health-risk behaviours among university students in South Africa. Cross-sectional survey data collected during... -
The economics of cowpea seed contracting in Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Edward Martey --- CSIR-Savanna Agricultural Research Institute, Ghana Prince M. Etwire --- CSIR-Savanna Agricultural Research Institute, Ghana Emmanuel Y. Owusu --- CSIR-Savanna Agricultural Research Institute, Ghana Desmond S. Adogoba --- CSIR-Savanna Agricultural Research Institute, Ghana Bashiru Haruna --- CSIR-Savanna Agricultural Research Institute, Ghana Mustapha M. Suraj --- CSIR-Savanna Agricultural Research Institute, Ghana Lucky Omoigui --- International Institute of Tropical Agriculture, NigeriaThe economic impact of agricultural contracting in developing economies has been widely studied. However, limited attention has been given to the specific dynamics of seed contracting among seed producers, despite their crucial role in seed delivery systems. Price volatility remains... -
Cash holding, risk-taking behavior and financial performance of non-financial firms listed in sub-Saharan Africa Securities Exchanges
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Brian Ochieng Aluora --- University of Embu, Kenya Samuel Nduati Kariuki --- University of Embu, Kenya Peter Njagi Kirimi --- University of Embu, KenyaThe study examined the linkage between cash holding, risk-taking and financial performance of listed non-financial corporations using the two-step system GMM method. GMM's outcome was then compared across the agricultural, manufacturing and construction industries. Cash holding and risk-taking had a... -
The effect of eucalypt slash burning and repeated disc harrowing on fuel load reduction, soil properties, and stand productivity
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Angel A Goldsmith --- Stellenbosch University, South Africa Ben du Toit --- Stellenbosch University, South AfricaIn plantation forestry systems, disc harrowing is sometimes used as a fuel load reduction measure to minimise wildfire risk. This study reports the long-term effects of repeated disking on fuel loading, soil properties and tree growth in two eucalypt stands... -
Building an ethical artificial intelligence corporate governance framework for the integration of emerging technologies into business processes
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: Husain Coovadia --- University of Johannesburg, South Africa Ben Marx --- University of Johannesburg, South Africa Ilse Botha --- University of Johannesburg, South Africa Nusirat O. Gold --- University of Johannesburg, -
Can good ESG performance help companies resist external shocks?
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Xin Yang --- Nanfang College, China Ahmad Fahmi Sheikh Hassan --- Universiti Putra Malaysia, Malaysia Yusuf Karbhari --- Cardiff University, UKIn order to validate the varied conclusions regarding the integration of corporate ESG practices by investors during external shocks, this study utilises the COVID-19 crisis as a specific external shock. The findings from our difference-in-differences methodology suggest that companies demonstrating... -
Bridging cultural gaps in health communication: Indigenous language as a catalyst for combatting monkeypox in Lagos, Nigeria
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Evaristus Adesina --- Northwest University, South Africa Abiodun Salawu --- Northwest University, South Africa Babatunde Adeyeye --- Northwest University, South AfricaInfectious diseases such as monkeypox have continued to pose significant threats to global health, demanding effective strategies for prevention and control. Existing studies have primarily focused on monkeypox clinical analysis, with less attention given to adopting indigenous languages as a... -
Modelling users’ intention to migrate from free to premium personal cloud storage in freemium business models: A machine learning approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John Oredo --- Department of Library and Information Science, University of Nairobi,Extant technology post-adoption studies focus on effective and continued use. The current study models the features that explain and predict users’ intention to migrate from free to premium cloud storage services. Data were collected from 122 postgraduate students on perceived... -
Assessing the systemic risk in Rwandan banking sector using clustering approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Patrick Mugenzi --- University of Rwanda, Rwanda Annie Uwimana --- University of Rwanda, RwandaThis article assessed the dynamics of homogeneity (similarities) among banks in Rwanda from 2017 to 2021 by utilizing agglomerative clustering techniques on a detailed breakdown of the banking system’s balance sheet structure. Specifically, we analyzed homogeneity in the banks’ portfolios,... -
Catch trends and population status of the leopard whipray Himantura leoparda (family Dasyatidae) off the east coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BQ Mann --- Oceanographic Research Institute (ORI), South Africa R Daly --- Oceanographic Research Institute (ORI), South Africa D Parker --- University of Queensland, Australia GL Jordaan --- Oceanographic Research Institute (ORI), South Africa G Cliff --- KwaZulu-Natal Sharks Board, South Africa N Nkabi --- KwaZulu-Natal Sharks Board, South Africa R Kyle --- South African Association for Marine Biological Research (SAAMBR), South Africa R Bennett --- Wildlife Conservation Society, South AfricaThe leopard whipray Himantura leoparda (family Dasyatidae) is globally assessed as Endangered on the IUCN Red List of Threatened Species owing to the species’ inherent vulnerability and declining population trends. In this study we assessed the population found off the... -
The association between fracture risk and bone mineral density in black postmenopausal women living with human immunodeficiency virus
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: C van der Merwe --- Centre of Excellence for Nutrition, North-West University, South Africa PO Ukegbu --- Centre of Excellence for Nutrition, North-West University, South Africa HS Kruger --- Centre of Excellence for Nutrition, North-West University, South Africa
