Search
Search results for
We found
79 results for you
-
The effect of water stress on the efficacy of diclofop-methyl and CGA 184′927+S on wild oat (Avena fatua)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.A. Agenbag --- Department of Agronomy and Pastures, Department of Botany, Republic of South Africa O.T. de Villiers --- Department of Botany, Republic of South Africa J.J. van Biljon --- Agricultural Division, Ciba-Geigy, Republic of South AfricaThe response of wild oat (Avena fatua) to diclofop-methyl and CGA 184′927+S under conditions of water stress was assessed in a pot experiment. Treatments with 0, 8, 16 and 24% polyethylene glycol (PEG 6000) were used to impose water stress... -
Variation of oil content and fatty acid composition in selected lines of vernonia (Vernonia galamensis variety ethiopica)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.A. Shimelis --- Department of Plant Sciences, M.T. Labuschagne --- Department of Plant Sciences, A. Hugo --- Department of Microbial, Biochemical and Food Biotechnology,Vernonia (Vernonia galamensis) is a new industrial crop that could offer a naturally epoxidized oil with great economic value. The oil content and fatty acid composition of 10 selected lines of V. galamensis variety ethiopica were analysed to study the... -
Principal agronomic and seed oil traits in the industrial oil crop vernonia (Centrapalus pauciflorus var. ethiopica)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Hussein A Shimelis --- School of Agricultural, Environmental and Earth Sciences, African Centre for Crop Improvement, South Africa Phatu W Mashela --- Department of Soil Science, Plant Production and Agricultural Engineering, South Africa Arno Hugo --- Department of Microbial, Biochemical and Food Biotechnology, South AfricaVernonia (Centrapalus pauciflorus) is potentially a new crop that could offer naturally epoxidised industrial oil. The objective of this study was to apply principal component analyses on agronomic traits, seed oil and fatty acid compositions in vernonia to identify the... -
COMPARISON OF FISH GONADS AND FISH MEAL AS MAJOR COMPONENTS IN THE DIETS OF YOUNG AFRICAN SHARPTOOTH CATFISH, CLARIAS GARIEPINUS (BURCHELL)
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: L.C. Hoffman --- Aquaculture Research Unit, South Africa J.F. Prinsloo --- Aquaculture Research Unit, South Africa J. Theron --- Aquaculture Research Unit, South AfricaThe replacement of fish-meal (two sources, arbitrarily designated FMA and FMB), with either freeze dried (GVD) or oven dried (GOD) gonads of Clarias gariepinus in a starter diet for larvae of this species, was tested. No significant difference in larval... -
Maternal Response to Father-Daughter Incest: Experiences of Mothers Following Disclosure
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Tokozile Mayekiso --- Nelson Mandela Metropolitan University, Fikelephi Mbokazi --- University of the Witwatersrand,This study explored the impact of the disclosure of sexual abuse of the daughter by the father or father figure on the mother. Data were collected from seven mothers aged between 31 and 48 years whose daughters had a history... -
Adolescent Boys' Talk about Absent Fathers
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Malose Langa --- University of Witwatersrand,The objective of this study was to explore how adolescent boys talk about absent fathers in Alexandra Township, a historically working-class and black community in Gauteng, South Africa. Individual and group interviews were conducted with 30 adolescent boys between the... -
Why Young Men in South Africa Plan to Become Teenage Fathers: Implications for the Development of Masculinities within Contexts of Poverty
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lynn Hendricks --- Early Learning Resource Unit, South Africa Sharlene Swartz --- Human Sciences Research Council, South Africa Arvin Bhana --- Human Sciences Research Council, South AfricaDrawing on in-depth interviews with young fathers (n=37) aged 14 to 20 in impoverished communities in South Africa, this study focuses on the young men who intentionally planned to have children while still teenagers. It interrogates their reasons for doing... -
Young Rural Males in South Africa Speak on Teenage Pregnancy: “It's Really Her Problem”
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Reshma Sathiparsad --- University of KwaZulu-Natal,The aim of this study was to explore the attitudes, beliefs and behaviours of school-going rural males in KwaZulu-Natal, South Africa on teenage pregnancy. Two methods of data collection were used, namely, a quantitative survey with a sample of 294... -
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... -
Responsible Teenage Fatherhood in a South African Historically Disadvantaged Community
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Malose Langa --- Department of Psychology, Nicole Smith --- Department of Psychology,This study explored the meaning of teenage fatherhood in a historically disadvantaged South African community. Open ended interviews on teenage fatherhood were conducted with sixteen teenage fathers aged between 16 and 21 years. The data were analysed using thematic content... -
Compassion Fatigue, Burnout and Compassion Satisfaction: Prevalence among Nursing Students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Tshwane University of Technology, Juan A. Nel --- University of South Africa,This article reports on the professional quality of life of a sample of participants who were enrolled for an academic programme in Nursing Science (N = 80, females = 73). Data were collected utilising the Professional Quality of Life (ProQOL... -
Mentor Relationship Effects on Perceived Quality of Life by a Sample of Rural South African Teenagers
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johannes P. D. Steytler --- North-West University—Vaal Campus, South Africa Herman Strydom --- North-West University—Potchefstroom Campus, South AfricaThis study investigated mentor effects on the perceived quality of life of South African adolescent boys. Participants were 20 adolescent boys that completed the Child Functioning Inventory High School, a standardised measuring instrument. These teenagers also engaged in an interview... -
HIV/AIDS fatalism, beliefs and prevention indicators in Gabon:comparisons between Gabonese and Malians
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: RosannaF Hess --- , United States Martin Mbavu --- , United StatesHIV/AIDS fatalism may impact on individuals’ health-seeking behaviour and HIV-prevention efforts. This descriptive study measured levels of HIV/AIDS fatalism and documented HIV/AIDS beliefs and practices among a sample of Gabonese and Malians living in Gabon, West Africa. The Powe Fatalism... -
Estimating the lipid content of pelagic fish in the southern Benguela by visual assessment of their mesenteric fat
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CD van der Lingen L HutchingsA technique to estimate the lipid content of anchovy Engraulis encrasicolus and sardine Sardinops sagax using visual assessments of mesenteric fat is described. Anchovy are allocated to one of five and sardine to one of seven fat stages, depending upon... -
Application of a fat staging technique to examine temporal and spatial variability in lipid content of southern Benguela sardine Sardinops sagax
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J de Goede CD van der LingenA recently developed technique to estimate the lipid content of pelagic fish, using macroscopic visual assessment of their mesenteric fat, was applied to samples of southern Benguela sardine Sardinops sagax collected from commercial catches over the period 1996–2004. The data... -
Dusky dolphins Lagenorhynchus obscurus and Cape fur seals Arctocephalus pusillus pusillus: fatty acid composition of their blubber and prey species
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: O Grahl-Nielsen --- Department of Chemistry, Norway J-O Krakstad --- , Norway L Nøttestad --- , Norway BE Axelsen --- , NorwayThe fatty acid composition of the blubber of five dusky dolphins Lagenorhynchus obscurus and five Cape fur seals Arctocephalus pusillus pusillus from the northern Benguela ecosystem (South-East Atlantic) and their main prey was determined. Differences in fatty acid composition of... -
Liver lipids of Indian and Atlantic Ocean spinner Carcharhinus brevipinna and blacktip Carcharhinus limbatus sharks
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: B Davidson --- , Netherlands Antilles M Zayed --- , Netherlands Antilles S Zayed --- , Netherlands Antilles G Cliff --- , South AfricaShark liver oils are rich in polyunsaturated fatty acids, especially the n3 moieties. Data on the liver fatty acids of sharks from African waters, however, are limited. Liver samples from sharks from the western Indian Ocean off the east coast... -
Kikuyu over-sown with ryegrass and clover: grazing capacity, milk production and milk composition
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: PR Botha R Meeske HA SnymanThe high dry matter yield of kikuyu (Pennisetum clandestinum) under favourable conditions supports high stocking rates and milk production per hectare. However, the quality of kikuyu is generally low and consequently the milk production per cow is also low. The... -
The impact of insulin resistance, gender, genes, glucocorticoids and ethnicity on body fat distribution
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: NJ Crowther --- Department of Chemical Pathology, National Health Laboratory Service, South Africa WF Ferris --- Department of Medicine, Faculty of Health Sciences, South AfricaThe metabolic consequences of obesity are highly dependent on body fat distribution and total body fat mass. Visceral adipose tissue in particular has been found to play an important aetiological role in obesity-related disorders. The contrasting fat distribution between genders,... -
Serum resistin levels in nonalcoholic fatty liver disease and their relationship to severity of liver disease
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: A Murad --- Department of Internal Medicine, Faculty of Medicine, Egypt H Hassan --- Department of Chemical Pathology, Faculty of Medicine, Egypt H Husein --- Department of Chemical Pathology, Faculty of Medicine, Egypt A Ayad --- Department of Surgery, Faculty of Medicine, EgyptBackground: Resistin is a hormone that is linked to the development of insulin resistance (IR), but information on the direct relationship of resistin levels in humans with nonalcoholic fatty liver disease (NAFLD), and their effect on the histological severity of... -
Lipid accumulation and alkaline phosphatase activity in human preadipocytes isolated from different body fat depots
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: AT Ali --- Department of Chemical Pathology, National Health Laboratory Service, WF Ferris --- Division of Endocrinology, Department of Medicine, Faculty of Health Sciences, CB Penny --- Department of Medicine, M-T Van der Merwe --- University of Pretoria and Waterfall City Hospital, BF Jacobson --- Department of Haematology and Molecular Medicine, National Health Laboratory Service, JE Paiker --- Department of Chemical Pathology, National Health Laboratory Service, NJ Crowther --- Department of Chemical Pathology, National Health Laboratory Service,Background: Alkaline phosphatase (ALP) controls intracellular lipid accumulation in human preadipocytes, but it is not known whether ALP is expressed in all body fat depots, or whether it has a similar role at all sites. -
Paravertebral block as a sole technique for the anaesthetic management of a patient with myalgic encephalomyelitis undergoing breast cancer surgery
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Kinsley Enohumah --- Department of Anaesthesia, Intensive Care and Pain Medicine, Ireland S. Raza Mehdi --- Department of Anaesthesia, Intensive Care and Pain Medicine, Ireland Alan J. McShane --- Department of Anaesthesia, Intensive Care and Pain Medicine, Ireland Crina L. Burlacu --- Department of Anaesthesia, Intensive Care and Pain Medicine, IrelandMyalgic encephalomyelitis (ME) is a multifaceted organic disease which, owing to its non-specific multiple symptoms that include incapacitating fatigue, deeply affects the quality of life of diseased patients. It carries a perceived risk of an adverse reaction to drugs, including... -
Chronic fatigue syndrome: diagnosis and treatment
Item type: Journal Article • Journal: South African Family Practice • Authors: A Revelas --- Pathology Department, E Baltaretsou --- Cardiology Department, GreeceChronic fatigue syndrome (CFS) refers to marked and prolonged fatigue, for which no indentifiable cause can be found. Despite the presence of extensive symptoms, diagnosis is made when there is profound fatigue, lasting for a duration of six months, or... -
The use of ultrasonography in the perioperative management of penetrating chest trauma with indwelling blade
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: S Kudsk-Iversen --- Stanger Hospital, South Africa R Matos-Puig --- Stanger Hospital, South AfricaWe report on the anaesthetic and postoperative analgesic management of a patient presenting with a single penetrating thoracic injury, with radiological confirmation of a foreign object still present in the thorax. The patient underwent an emergency right posterolateral thoracotomy. We... -
Are you your father's child? Social identity influences of father absence in a South African setting
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Petunia Smith --- School of Human and Community Development, South Africa Grace Khunou --- Department of Sociology, South Africa Motlalepule Nathane-Taulela --- Department of Social Work, South AfricaThis study explored social identity influences of father absence on black South African young adults, including use of paternal surname. Informants were six young women and men between 21 and 35 years of age from a historically disadvantaged South African... -
Culture environment and hatchery of origin influence growth, condition and feeding organ morphology in the Pacific oyster Crassostrea gigas in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Nel --- Department of Botany and Zoology, South Africa G Pitcher --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries, South Africa NB Richoux --- Department of Zoology and Entomology, South Africa S Jackson --- Department of Botany and Zoology, South AfricaSouth Africa lacks a commercial oyster hatchery. To inform the sourcing of seed for future hatchery establishments, we compared half-sib Pacific oyster Crassostrea gigas cohorts from hatcheries in Namibia and Chile. We measured oyster growth, mortality, condition and feeding organ... -
Fortigenic qualities of psychotherapists in practice
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Erica F De Lange --- Africa Unit for Transdisciplinary Health Research, South Africa Shingairai Chigeza --- Africa Unit for Transdisciplinary Health Research, South AfricaThis brief report presents preliminary findings on the exploration of strengths (fortigenic) qualities of psychotherapists which can buffer them against compassion fatigue. Participants were seven South African psychologists in private practice. Data were collected using qualitative interviews and thematically analysed... -
Experiences of young adult women with emotionally absent fathers
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Emené Peyper --- School of Psychosocial Behavioural Sciences: Psychology, South Africa Werner de Klerk --- School of Psychosocial Behavioural Sciences: Psychology, South Africa Ruan Spies --- School of Psychosocial Behavioural Sciences: Psychology, South AfricaThis study explored the experiences of young adult women (n = 11) who grew up with emotionally absent fathers. The women (White: Afrikaans) were between the ages of 20 and 31 (5 were married, 1 was engaged, 1 was in... -
Grazing capacity, milk production and milk composition of kikuyu over-sown with annual or perennial ryegrass
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Janke van der Colf --- Western Cape Department of Agriculture, South Africa Philip R Botha --- Western Cape Department of Agriculture, South Africa Robin Meeske --- Western Cape Department of Agriculture, South Africa Wayne F Truter --- Department of Plant Production and Soil Science, South AfricaKikuyu (Pennisetum clandestinum) is a highly productive pasture species that supports high stocking rates and milk production per hectare, but production per cow is low due to low nutritive value. The aim of this study was to determine the grazing... -
Characterisation of the dietary relationships of two sympatric hake species, Merluccius capensis and M. paradoxus, in the northern Benguela region using fatty acid profiles
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JA Iitembu --- Department of Fisheries and Aquatic Sciences, Namibia NB Richoux --- Department of Zoology and Entomology, South AfricaThe two sympatric species of Cape hake, Merluccius capensis and M. paradoxus, have been the main targets of bottom-trawl fisheries off Namibia for several decades. The feeding ecology of these hakes has been studied mainly using stomach content analyses and... -
Construction of a valid and reliable test to determine knowledge on dietary fat of higher-educated young adults
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: I. Venter --- Department of Agricultural and Food Sciences, Cape TownAbstract -
What factors determine the use of the nutrition information on the food label when female consumers from Pietermaritzburg select and purchase fat spreads?
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: NL. Wiles --- Discipline of Dietetics and Human Nutrition, Pietermaritzburg M. Paterson --- Discipline of Dietetics and Human Nutrition, Pietermaritzburg JL. Meaker --- Discipline of Dietetics and Human Nutrition, PietermaritzburgObjectives: This study set out to determine the following in relation to the nutrition information on the food labels of selected fat spreads: the demographic profile of female consumers using the food label, reasons for food label use and whether... -
Dietary fat knowledge and intake of mid-adolescents attending public schools in the Bellville/Durbanville area of the city of Cape Town
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: I. Venter --- Department of Agricultural and Food Sciences, South Africa A. Winterbach --- Department of Agricultural and Food Sciences, South AfricaObjectives: This survey primarily investigated the dietary fat knowledge and intake of 17-year-olds. -
Dietary fat intake and nutritional status indicators of primary school children in a low-income informal settlement in the Vaal region
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: W. Oldewage-Theron --- Director of the Research Centre of Sustainable Livelihoods, C Napier --- Department of Food and Nutrition, A Egal --- Centre of Sustainable Livelihoods,Background: The objective of this study was to examine growth indicators, serum cholesterol, high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol and triglyceride levels, as well as dietary fat intakes usually associated with cardiovascular disease (CVD) risk in healthy primary... -
Malnutrition in the acutely ill patient: is it more than just protein and energy?
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Pe Wischmeyer --- Professor of Anaesthesiology, University of Colorado,Malnutrition has traditionally been thought to involve deficiencies in protein and energy (macronutrients); however, we know that specific key nutrients, when deficient. can also lead to significant morbidity and mortality. Large studies performed with replacement of single nutrients, such as... -
Prevalence of and contributing factors to dyslipidaemia in low-income women aged 18-90 years in the peri-urban Vaal region
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Wh Oldewage-Theron --- Centre of Sustainable Livelihoods, Aa Egal --- Centre of Sustainable Livelihoods,Objective: Determining the prevalence of dyslipidaemia and examining dietary and other contributing factors, namely hypertension, overweight and obesity, as well as abnormal blood lipid levels in women aged 18-90 years. -
What health professionals should know about omega-3 fatty acid supplements
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: M Opperman --- Department of Agriculture and Food Science,Omega-3 (n-3) fatty acids are essential to maintain satisfactory human health and need to be consumed in the diet. Western diets are often deficient in n-3 fatty acids because of an insufficient intake of cold water oily fish. The main... -
Non-fatal injuries of interpersonal violence at the Leratong Provincial Hospital, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: Saimen Amashnee --- Department of Forensic Medicine, South Africa Gordon Guinevere --- Forensic Medicine, South Africa Govender Indiran --- Family Medicine, South AfricaBackground: Interpersonal violence is a global health issue. More than 1.6 million people die annually as a result of violence. Injured survivors suffer from a range of physical, sexual, reproductive and mental health problems. The aim of this study is... -
South African seed oils are safe for human consumption
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: M Opperman --- Functional Foods Research Unit, Department of Biotechnology and Consumer Science, AJS Benadé --- Functional Foods Research Unit, Department of Biotechnology and Consumer Science, CF Abrecht --- Cancer Association of South Africa, LL Matsheka --- Functional Foods Research Unit, Department of Biotechnology and Consumer Science,Objectives: A diet that is high in fat and low in carbohydrates is advocated in the recently published The Real Meal Revolution. A suggestion was made in this publication that seed oils are toxic. The authors stated that available seed... -
Fatty acids in beef from grain- and grass-fed cattle: the unique South African scenario
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: N Hall --- Research Consultant Department of Animal and Wildlife Sciences, HC Schönfeldt --- Research Consultant Department of Animal and Wildlife Sciences, B Pretorius --- Research Consultant Department of Animal and Wildlife Sciences,Objective: Different fatty acids elicit different responses in the human body once ingested. Although red meat is often considered to be a source of fatty acids which has a negative impact on human health, many studies have reflected variability in... -
Burnout, compassion fatigue and compassion satisfaction among nurses in the context of maternal and perinatal deaths
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Teresa-Anne Bagakilwe Mashego --- Department of Clinical Psychology, South Africa Davhana Stanley Nesengani --- Department of Obstetrics and Gynaecology, South Africa Thembelihle Ntuli --- Research Development and Administration, South Africa Gail Wyatt --- Department of Behavioral Medicine, United States of AmericaThis study investigated the prevalence and levels of burnout, compassion fatigue and compassion satisfaction among nurses with exposure to maternal and perinatal deaths. A convenience sample of 83 nurses was selected for participation from six hospitals in Limpopo province, South... -
Experiences of father carers of children with Autism Spectrum Disorder: An exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Antoinette Pottas --- Department of Psychology, South Africa Athena Pedro --- Department of Psychology, South AfricaThis study aimed to explore the carer experiences of fathers of children with Autism Spectrum Disorder (ASD). A total of eight South African fathers between the ages of 38 and 45 years were the interview informants. They cared for at... -
“I am making it without you, dad”: Resilient academic identities of black female university students with absent fathers: An exploratory multiple case study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ncamisile Thumile Zulu --- Human Sciences Research Council, South Africa Nicholas Munro --- Discipline of Psychology, School of Applied Human Sciences, South AfricaThis study explored the resilient academic identity constructions of two black father-absent females who were academically successful postgraduate students at a South African University. Using resilience theory and an African metaphysical framework, the study highlights the conversational devices that these... -
The fathers of Destiny: Representations of fatherhood in a popular South African magazine
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Bertrand Leopeng --- Department of Psychology, South Africa Malose Langa --- Department of Psychology, South AfricaThis study utilised textual analysis to characterise the representation of fatherhood in the eight issues of Destiny Man magazine published in 2014. Stories that pertained to fatherhood and that were related to aspects of contemporary family construction, work, and identity... -
The relationship between existential attitudes and professional quality of life among nursing students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Henry D. Mason --- Directorate of Higher Education Development and Support, South AfricaThis study examined the relationship between existential attitudes and professional quality of life among a sample of South African nursing students (N = 150; mean age = 21.19, SD = 2.77; female = 90%). The student nurses completed the Life... -
Soil taxonomy proposals for acid sulfate soils and subaqueous soils raised by the 8th International Acid Sulfate Soils Conference
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Barret M Wessel --- Department of Environmental Science and Technology, USA John M Galbraith --- Department of Crop and Soil Environmental Sciences, USA Mark H Stolt --- Department of Natural Resources Science, USA Martin C Rabenhorst --- Department of Environmental Science and Technology, USA Delvin S Fanning --- Department of Environmental Science and Technology, USA Maxine J Levin --- USDA-Natural Resources Conservation Service, USAThe 8th International Acid Sulfate Soils Conference presented examples and discussions for classification of ‘acid sulfate soils’ and related issues for ‘subaqueous soils’. When these soils are disturbed or exposed, the sulfides (predominantly pyrite) react with oxygen to produce sulfuric... -
Protected nearshore shallow and deep subtidal rocky reef communities differ in their trophic diversity but not their nutritional condition
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ER Heyns-Veale --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa NB Richoux --- Department of Zoology and Entomology, South Africa ATF Bernard --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa A Götz --- Elwandle Node, South African Environmental Observation Network (SAEON), South AfricaLarge physical changes that alter reef macrobenthos and fish assemblages occur with increasing depth, so the biological processes that regulate communities at different depths are expected to diverge. We used analyses of stable isotopes (δ13C and δ15N) and fatty acids... -
Differences between bone mineral density, lean and fat mass of HIV-positive and HIV-negative black women
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: C Ellis --- Centre of Excellence for Nutrition, North-West University, South Africa HS Kruger --- Centre of Excellence for Nutrition, North-West University, South Africa P Ukegbu --- Centre of Excellence for Nutrition, North-West University, South Africa IM Kruger --- Africa Unit for Transdisciplinary Health Research, North-West University, South Africa M Viljoen --- Department of Pharmacology and Clinical Pharmacy, South Africa MC Kruger --- School of Health Sciences, Massey University, New ZealandObjectives: To investigate the differences between bone mineral density (BMD), lean and fat mass of human immunodeficiency virus (HIV-) positive and HIV-negative black women and to investigate factors associated with low BMD. -
Seed oil content and fatty acid composition response to ethyl methanesulphonate mutagenesis in vernonia
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sandile Hadebe --- Department of Agronomy, Faculty of Science and Agriculture, South Africa Albert T Modi --- Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Arno Hugo --- Department of Microbial, Biochemical and Food Biotechnology, South Africa Hussein A Shimelis --- Crop Science, School of Agricultural, Earth and Environmental Sciences, South AfricaVernonia [Centrapalus pauciflorus (Willd.) H.Rob.] is a novel industrial oilseed crop that can be used to produce vernolic acid, a naturally epoxidised fatty acid. The study objective was to determine whether ethyl methylsulphonate (EMS) mutagenesis significantly altered seed oil content... -
Compassion capability in resource-limited organizations in South Africa
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Katherine J. Train --- Graduate School of Business, South Africa Kurt April --- Graduate School of Business, South AfricaCompassion in organizations benefits the giver and receiver of compassion, and the organization as a whole. Organizations with resource limitations, however, face risks and liabilities for compassion organizing. In South Africa, an emerging economy with a challenged socioeconomic environment, human... -
Absent fathers: Psychological and socio-economic implications for black children and directions for future research
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Simnikiwe Magqamfana --- Department of Psychology, South Africa Sandiso Bazana --- Department of Psychology, South AfricaThis study investigated fathers’ absence influences on the self-perceptions of South African young adults. Informants were five black university students (two females, three males; age range 20 to 28 years). They responded to semi-structured face-to-face interviews on self-perceptions from having... -
Nematode assemblages and soil microbial communities in soils associated with glyphosate-resistant soybean
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Chantelle Girgan --- Nematology Unit, Biosystematics Division, Agricultural Research Council-Plant Health and Protection, South Africa Sarina Claassens --- Unit for Environmental Sciences and Management, South Africa Hendrika Fourie --- Unit for Environmental Sciences and Management, South AfricaThe introduction of genetically modified glyphosate-resistant (GR) crops led to increased use of glyphosate, with potential long-term effects on biological soil communities. Abundance and diversity of plant-parasitic and non-parasitic nematodes, as well as microbial community structure in the rhizosphere of... -
The beneficial effects of growth regulators on forage yield and quality of Amaranthus caudatus under different water stress conditions
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Somayeh Farshbaf-Jafari --- , Iran Alireza Pirzad --- , Iran Mehdi Tajbakhsh --- , Iran Kazem Ghassemi-Golezani --- , IranIn order to improve crop productivity, farmers should have strategies for higher quantity and quality of forage without excessive inputs, like irrigation water. In order to assess forage quality of Amaranthus caudatus in response to irrigation levels (irrigation after 70,... -
Exploring Basotho teenage fathers’ experiences of early fatherhood at South African rural high schools
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Robert Kananga Mukuna --- , South AfricaThis study explored the early fatherhood experiences of school-going teenage fathers. Informants were four South African Sesotho speaking teenage fathers, aged 17 to 20 years. They responded to semi-structured interviews on their experiences during schooling. Following thematic analysis, results revealed... -
On a collision course? The large diversity of birds killed by wind turbines in South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: V Perold --- , South Africa S Ralston-Paton --- , South Africa P Ryan --- , South AfricaWind energy is a clean, renewable alternative to fossil fuel-derived energy sources, but many birds are at risk from collisions with wind turbines. We summarise the diversity of birds killed by turbine collisions at 20 wind energy facilities (WEFs) across... -
Milk evolution with emphasis on the Atlantogenata
Item type: Journal Article • Journal: African Zoology • Authors: Gernot Osthoff --- , South Africa Moses Madende --- , South Africa Arnold Hugo --- , South Africa Hendrik JB Butler --- , South AfricaThe milk composition of each species is unique, because it has evolved according to specific needs and adaptation to the environment. As milk data from more species became available, an evolutionary trend shows a phylogenetic distinction between Eutherian taxa regarding... -
“Out there it’s YOLO”: Youth perspectives on a mass media HIV- and gender-based violence campaign in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Gavin Robert Walker --- , ChinaGender-based violence continues to be a leading determinant of South Africa’s HIV/AIDS epidemic. As such, gender socialisation and de-normalisation of gender inequality and violence remain principal objectives for public health organisations. This article discusses youth reception of a mass media... -
Characterisation of Eucalyptus rhizospheric communities using fatty acid methyl ester (FAME) profile analysis
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Chimdi Nwigwe --- , South Africa Annabel Fossey --- , South Africa Olga de Smidt --- , South AfricaHybrid vigour is exploited in Eucalyptus forestry through the production of interspecific hybrids. Hybrids are deployed via cuttings that often suffer from poor rooting. Rhizospheric microorganisms have been associated with rooting enhancement, therefore knowledge of the diversity of microorganism communities,... -
Food and beverages undermining elderly health: three food-based dietary guidelines to avoid or delay chronic diseases of lifestyle among the elderly in South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Yasaman Jamshidi-Naeini --- , United States Gugulethu Moyo --- , United States Carin Napier --- , South Africa Wilna Oldewage-Theron --- , United StatesDietary patterns among South African older adults indicate a moderate intake of total fat and salt, as well as a high sugar intake. Total fat, saturated fat, sugar and salt intakes are associated with non-communicable diseases (NCDs) and mortality. Processed... -
Determinants of participation in livestock development programmes: Evidence from South Africa’s Kaonafatso ya Dikgomo (KyD) Scheme
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Saul Ngarava --- , South Africa Abbyssinia Mushunje --- , Petronella Chaminuka --- , South AfricaThe objective of the study was to determine factors influencing participation decisions in the Agricultural Research Council’s Kaonafatso ya Dikgomo (KyD) Scheme in South Africa. A cross-sectional survey was used to collect data on socio-economic and institutional factors, as well... -
Quality evaluation of Artemia cysts from three Algerian populations
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: C Chabet Dis --- , Algeria W Refes --- , Algeria I Varó --- , Spain F Hontoria --- , Spain F Amat --- , Spain JC Navarro --- , SpainThe aim of this study was to determine the nutritional value of three populations of Artemia, one from the Bethioua Sebkha (Oran) and two new biotopes at El Melah (Bechar) and Timimoune (Adrar), by evaluating the cyst and nauplius biometry,... -
Ethnomedicinal use of pythons by traditional medicine practitioners in Ghana
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Maxwell K Boakye --- Ho Technical University, Ghana Edward D Wiafe --- University of Environment and Sustainable Development, Ghana Meyir Y Ziekah --- Forestry Commission (Wildlife Division), GhanaThe use of Python spp. for traditional medicine purposes has been recorded, but there is a dearth of information on the versatility of body parts used for the treatment of human ailments. This study aimed to determine the medicinal knowledge... -
An evaluation of the environmental behaviour, fate and risk of key pesticides used in South African forest plantations
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Noxolo Nokwethemba Ndlovu --- , South Africa Keith Little --- , South Africa Brenda Baillie --- , New Zealand Carol Rolando --- , New ZealandPesticides are important for the management of pests and diseases that have a negative impact on the sustainability of the forestry industry. Nevertheless, there is a trend to reduce pesticide use owing to the potential detrimental impacts they pose to... -
Detection of driver fatigue driving behaviour based on deep learning algorithm from the perspective of traffic psychology
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yan Fan --- , ChinaIn modern times, with mass transportation systems, driver fatigue has become one of the main causes of traffic accidents. The development of intelligent transportation systems holds great promise for safety. Increasingly, policies, laws, and regulations will consider artificial intelligence applications... -
Humble leadership and work fatigue: The roles of self-efficacy and perceived team autonomy-support
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xixi Chu --- , China Lihua Zhang --- , China Mengyi Li --- , ChinaWork fatigue plays an important role in employee health and workplace safety. However, little is known about leadership qualities for reducing employee work fatigue. This study explored the relationship between humble leadership and work fatigue, the mediating role of self-efficacy,... -
Are fathers involved in diabetes management? A rapid review
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Simphiwe Hope Mathole --- North-West University, South Africa Elmari Deacon --- North-West University, South Africa Esmé van Rensburg --- North-West University, South AfricaThis rapid review aimed to synthesise the evidence on father involvement in managing their child's type 1 diabetes. We identified eight articles from EBSCO, Science Direct, Academic Search Premier, Psyclnfo, PsycArticles, and Google Scholar. Studies were included if they provided... -
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 visceral synapomorphy of Scolecomorphus Boulenger, 1883 (Amphibia: Gymnophiona: Scolecomorphidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Mark Wilkinson --- The Natural History Museum, UK DavidJ. Gower --- The Natural History Museum, UK SimonP. Loader --- University of Basel, Switzerland Hendrik Müller --- Institut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, Friedrich Schiller Universität Jena, GermanyWe describe the distinctive but previously overlooked shape and position of the fat bodies of some scolecomorphid caecilians. Anteriorly positioned, finger-like fat bodies projecting into the coelom from narrow bases in the genital mesenteries are found in both sexes of... -
Father influences on child social adaptability: Mediation by peer communication ability
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Zeming Jin --- Shaoxing University, China Ruiqian Li --- Shaoxing University, China Yanyan Liu --- Shaoxing University, China Wenxiao Cui --- Shaoxing University, China Xiao Yang --- Shaoxing University, ChinaWe examined the relationship between fathers’ parenting attitudes and children’s social adaptability, as well as the mediating effect of children’s peer communication ability in that relationship. The participants were 228 young Chinese children (boys =54.3%, girls=45.7%; mean age =5 years,... -
Father–child relationship and children’s peer competence: Mediated by children’s emotional regulation and environmental adaptation
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Wenxiao Cui --- Shaoxing University, China Ruiqian Li --- Shaoxing University, China Xiao Yang --- Shaoxing University, China Xia Wu --- Shaoxing University, ChinaThis study aimed to explore father–child relationships and young children’s peer competence, as mediated by child emotional regulation and environmental adaptation. The children’s fathers and teachers completed peer competence, child emotional regulation and environmental adaptation measures on 216 Chinese children... -
How college students’ social media information overload affects sleep quality: The mediating effect of social fatigue and irrational procrastination
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jing Li --- Zhejiang University, China Tingting Gao --- Zhejiang University, China Yinghua Ye --- Zhejiang University, ChinaInformation overload is a pervasive phenomenon in the information age and has a negative impact on personal psychological experiences and behavioural performance. The relationship between WeChat information overload and sleep quality was examined, as well as the mediating effects of... -
Fatigue and mind-wandering among Chinese adolescents: Moderation by rumination and mediation by Internet addiction
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: --- College of Education Sciences, Wulingshan K-12 Educational Research Center, Huaihua University, ChinaThis study examined the mediating role of Internet addiction in association with fatigue and mind-wandering and the moderating role of rumination in that relationship. A sample of 3 732 Chinese adolescents (Mean age = 14.98 years, SD = 1.63) completed... -
Father’s parenting attitude and teacher-child relationships: Mediating role of children’s self-regulation ability
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: --- College of Teacher Education, Shaoxing University, China --- College of Teacher Education, Shaoxing University, China --- College of Teacher Education, Shaoxing University, China --- College of Teacher Education, Shaoxing University, China --- College of Teacher Education, Shaoxing University, ChinaWe examined father’s parenting attitudes in association with teacher-child relationships and the mediating role of young children’s self-regulation ability in this relationship. Participant fathers (n = 211), age range (below 30 to over 41 years of age) and teachers (n... -
Religiosity and well-being among Nigerians: Exploring the mediating role of fatalism
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Aaron Adibe Agbo --- University of Nigeria, Nigeria Christopher Ndubisi Ngwu --- University of Nigeria, Nigeria Nkechi Gloria Onah --- University of Nigeria, Nigeria Ifeanyi E. Iwundu --- Institute of African Studies, University of Nigeria, NigeriaThe current study examined how intrinsic and extrinsic religious orientations relate to hedonic and eudaimonic well-being and the mediating role of the dimensions of fatalism among Nigerians. Data were obtained from a survey of young Nigerians aged between 17 and... -
Lack of evasive behaviour by a Martial Eagle Polemaetus bellicosus on impact with a turbine blade at a South African wind farm: causes and mitigations
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Robert E Simmons --- University of Cape Town, South Africa Marlei Martins --- , South AfricaWe describe a collision of Africa’s largest raptor, the Martial Eagle Polemaetus bellicosus with a spinning blade at a South African wind farm in the Eastern Cape in July 2016, and the abandonment of the territory following a second fatal... -
Validity and reliability of the Compassion Fatigue Short Scale among nursing interns
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Li-Juan Yi --- Hunan Traditional Chinese Medical College, China Ting Shuai --- Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, China Ya Li --- Hunan Traditional Chinese Medical College, China Guo-Hao Wang --- Tangshan Polytechnic University, China Hai-Yan Long --- Hunan Traditional Chinese Medical College, China Hang Lin --- Hunan Traditional Chinese Medical College, China Xu Tian --- Chongqing Traditional Chinese Medicine Hospital, China Maria F. Jiménez-Herrera --- Universitat Rovira i Virgili, SpainWe aimed to determine the reliability and validity of scores from the Chinese Compassion Fatigue Short Scale (CFSS) for nursing interns (n = 229; female = 88.2%, mean age = 20.34 years, SD = 0.968 years). The nursing interns completed... -
10. The importance of the quality or type of fat in the diet: a food-based dietary guideline for South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Smuts CM --- Centre of Excellence in Nutrition, North-West University, Wolmarans P --- Nutritional Intervention Research Unit, Medical Research Council,The aim of this paper is to review the latest total fat intake data for South Africa, as well as scientific evidence on the effect of the total amount and quality or type of fat in the diet. The total... -
Locally hulled topologies
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Eugene Bilokopytov --- University of Alberta, University Commons 5-140, CanadaWe present a general result about generating group topologies by pseudo-norms. Namely, we show that if a topology has a base of sets which are closed in a certain sense, then it can be generated by a collection of pseudo-norms... -
Pelargonic acid for the management of firebreak tracer-lines: results from four trials implemented in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Keith M Little --- Nelson Mandela University, South AfricaMost South African planted forests occur in high wildfire risk regions, with firebreaks used to minimise the risk of run-away fires. Desiccant herbicides together with burning are used for firebreak preparation in a stepwise manner. In late summer, 1–2 m...
