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Genetic Improvement of Timber Yield and Wood Quality in Eucalyptus Grandis (Hill) Maiden
Item type: Journal Article • Journal: South African Forestry Journal • Authors: G. van Wyk --- Division of Forest Science and Technology,Results of a partial diallel progeny test of Eucalyptus grandis assessed at ages 5, 36, 60 and 105 months are presented. Large genetic variations among full-sib families were found for all traits studied, e.g. the mean tree volume per family... -
Geno-Phenotypic Regression and Juvenile-Mature Correlations: Methodological Tools for Clonal Selection of Eucalyptus Hybrids in Congo
Item type: Journal Article • Journal: South African Forestry Journal • Authors: Jean-Marc Bouvet --- Centre Technique Forestier Tropical Department of the CIRAD, FranceThis paper discusses different ways to improve clonal selection and clonal variety propagation for the industrial plantations in Congo. -
The Genetic Control of Ring Width, Wood Density and Tracheid Length in the Juvenile Core of Pinus patula
Item type: Journal Article • Journal: South African Forestry Journal • Authors: R.D. Barnes --- Forest Research Centre, Zimbabwe J.S. Birks --- , United Kingdom G. Battle --- Forest Research Centre, Zimbabwe L.J. Mullin --- Forest Research Centre, ZimbabweControlled crosses were made between six Pinus patula Schiede & Deppe plus trees selected in plantations. Six full-sib families and two commercial checks were planted in randomised complete block thrice-replicated progeny tests at two sites in Zimbabwe. At 7,5 years,... -
A gradient analysis of grassed mountain catchments in the natal Drakensberg
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: R.S. Walker --- Department of Environment Affairs,An indirect gradient analysis was carried out on vegetation and environmental data from the Mdedelelo Wilderness Area of Cathedral Peak State Forest in Highland Sourveld. Vegetation ordination axes were correlated with environmental variables deduced to have influenced species‐composition. Altitude proved... -
Water utilization patterns around isolated Acacia karroo trees in the False Thornveld of the eastern Cape
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: G.C. Stuart‐Hill --- Department of Agriculture and Water Supply (East Cape Region), Republic of South Africa N.M. Tainton --- Department of Agriculture and Water Supply (East Cape Region), Republic of South AfricaThe effect of various vegetation treatments on two soil moisture regimes (i.e. the proportion of the experimental period where the soil had sufficient water for: (a) growth, and (b) to keep the plants turgid in the vicinity of experimentally isolated... -
Kouebeskadiging van houtagtige plante in die Suuragtige‐Gemengde Bosveld
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: G.N. Smit --- DepartementLandbou‐ontwikkeling (Transvaalstreek), Republiek van Suid‐AfrikaCold damage to woody plants in the Sourish Mixed Bushveld. An incident of damage to woody plants by cold in the Sourish Mixed Bushveld was investigated. Woody plants in eight paddocks which were subjected to long‐term grazing treatments and which... -
Pedogeomorphic aspects of the Roodepoort area, Transvaal: Soil depth-slope relationships
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.C. Munnik --- Department of Geography, E. Verster --- Department of Geography, T.C. van Rooyen --- Department of Geography,Fifty hillslope profiles with associated soils in the Roodepoort area, Transvaal, were examined to determine the relationships between soil depth and hillslope characteristics. A meso-scale approach was adopted which implied the relationship between three soil depth phases and the hillslope... -
In situ field comparisons of Citrus jambhiri leaf water potential using hygrometric and pressure chamber methods
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.J. Savage --- Department of Soil Science and Agrometeorology, A. Cass --- Department of Soil Science and Agrometeorology, H.H. Wiebe --- Biology Department, U.S.A.In an experiment conducted outdoors, using Citrus jambhiri plants, we obtained comparative in situ dew point hygrometer, Psychrometer and pressure chamber water potential measurements. Partial abrasion of the leaf cuticle was effected prior to sealing thermocouple hygrometers against leaf surfaces... -
Soils derived from granite in two Mt. Garnet toposequences, North Queensland, Australia
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: E. Verster --- Department of Geography, Republic of South AfricaTwo toposequences derived from granite in the Mt. Garnet area, North Queensland, were examined to determine the detailed soil - landform relationships in order to facilitate subsequent broad-scale mapping of the soil resource. The dominant landsurface feature is gently sloping,... -
'n Vergelyking tussen hidrouliese geleivermoë en vernante eienskappe van 'n fynsand en 'n fynsandkleileem tydens in sity-dreinering
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.J. Beukes --- Hoëveldstreek, Departement van Landbou en Watervoorsiening, Republiek van Suid-AfrikaIn situ-dreineringstudies is in triplikaat op elk van 'n fynsand (Shashaserie) en 'n fynsandkleileem (Msingaserie) uitgevoer. Die ondersoek het 340 uur geduur waartydens op vyf dieptes metings van volumetriese waterinhoud (θ) en matrikspotensiaal (ψm) gedoen is. Unieke verwantskappe tussen θ,... -
Multivariate assessment of environmental effects on hard red winter wheat. II. Canonical correlation and canonical variate analysis of yield, biochemical and bread-making characteristics
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D. van Lili --- Small Grain Centre, Republic of South Africa J.L. Purchase --- Small Grain Centre, Republic of South Africa MarieF. Smith --- , Republic of South Africa G.A. Agenbag --- Department of Agronomy and Pastures, Republic of South Africa O.T. De Villiers --- Department of Botany, Republic of South AfricaThe inconsistent production of winter wheat with acceptable bread-making quality in the Free State reduces the commercial value of the wheat crop. In the second part of this study, canonical correlation analysis was used to determine to what extent variation... -
Use of linear regression and correlation matrix in the evaluation of CERES3 (Maize)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.S. du Toit --- , South Africa J. Booysen --- , South Africa J.J. Human --- UOVS, Department of Agronomy, South AfricaA historical data set (soil water content, growth, phenology and yield) consisting of six cultivars and three planting dates was used to evaluate the CERES3 crop growth model. Linear regression and correlation matrix were used to identify algorithms in the... -
Genetic relationships amongst macadamia varieties grown in South Africa as assessed by RAF markers
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.P. Peace --- , Australia P. Allan --- Discipline of Horticultural Science, South Africa V. Vithanage --- , Australia C.N. Turnbull --- Department of Agricultural Sciences, U.K B.J. Carroll --- , AustraliaMacadamia is an important horticultural crop of South Africa, and the major cultivars grown have a wide range of attributes. These cultivars originated from diverse backgrounds, but the genetic relationships between them are unclear. Here we describe new insights into... -
Phenotypic diversity for morphological and agronomic traits in traditional Ethiopian highland maize accessions
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: T. Beyene --- Department of Plant Sciences, A.M. Botha --- Department of Genetics, South Africa A.A. Myburg --- Department of Genetics, South AfricaFarmers in the highlands of Ethiopia have developed locally adapted maize varieties for more than 300 years. In order to assess the phenotypic diversity among traditional Ethiopian highland maize accessions, a total of 180 accessions were evaluated for agro-morphological traits... -
Associations of yield and yield components among selected durum wheats (Triticum turgidum L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.A. Shimelis --- , South AfricaAssociations of seed yield (SY) and important agronomic traits were studied among selected durum wheats (Triticum turgidum L.) to establish the relationship and pinpoint the best selection criteria. Controlled glasshouse studies were conducted over two years (2002–2003) using 14 diverse... -
Crop physiology: A perspective for southern Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.T. Modi --- , P.L. Greenfield --- ,Crop physiology is a broad subject and a comprehensive treatise of all its aspects is impossible, even in a whole volume dedicated to the subject. With a few exceptions, plant physiology, rather than crop physiology, is commonly the focus when... -
THE LENGTH/MASS RELATIONSHIP AND CONDITION OF LABEO CAPENSIS IN THE CALEDON RIVER
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: D.P. Baird --- Department of Zoology, South Africa S. Fourie --- Department of Zoology, South AfricaThe length mass relationship for a Labeo capensis population is described by the equation M = 0,0134 L2'999 where 2,999 represents a constant the value of which indicates isometric growth. There is very little difference between the length/mass relationship for... -
THE TEMPERATURE-GROWTH RATE RELATIONSHIPS OF AEROBIC HETEROTROPHIC BACTERIA ISOLATED FROM A SILT-LADEN IMPOUNDMENT
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: D.F. Toerien --- , South AfricaThe temperature-growth rate responses of bacterial isolates from Wuras Darn, a silt-laden, highly turbid impoundment were described well by Arrhenius equations. Activation energies varied from 10, 15 to 29, 59 kcal moles−1, indicating a varied response to temperature changes. Since... -
ON THE RELATIONSHIP BETWEEN TIGERFISH AND SARDINES IN LAKE KARIBA
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: B.E. Marshall --- Department of Biological Sciences, ZimbabweThere was a clear relationship in Lake Kariba between the abundance of young-of-the-year (0+) tigerfish and the sardines on which they prey. The abundant sardine population that existed before commercial fishing began accounted for the increase in tiger-fish which occurred... -
Re-evaluation of the disc pasture meter calibration for the Kruger National Park, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: N Zambatis PJK Zacharias CD Morris JF DerryDuring routine field application of the disc pasture meter (DPM) in the tall-grass rangeland of the Kruger National Park (KNP), it was noticed that the instrument frequently settles above the bulk of the grass leaf mass, leading to the suspicion... -
An investigation into the occurrence and nature of genotype by environment interaction in Pinus patula
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: C.L. Snedden --- , South Africa S.D. Verryn --- , South AfricaThis study was conducted as part of a joint venture between the tree improvement teams of Safcol and the CSIR to develop a breeding, production and conservation strategy for Pinus patula. -
Relational Conflict Resolution Strategies (RCRS) and Workplace Frustration
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Bolanle Ogungbamila --- Adekunle Ajasin University,This study examined which of the five relational conflict resolution strategies (RCRS) (i.e., confronting, withdrawing, forcing, smoothing, and compromising) usually employed by superiors to resolve workplace conflicts, best reduced the level of workplace frustration reported by their subordinates. Two hundred... -
In Pursuit of Happiness: How Some Young South African Children Construct Happiness
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Irma Eloff --- University of Pretoria,The purpose of the study was to explore the ways in which young South African children construct the notion of happiness. The small-scale study was conducted with children (n=42) in middle childhood between the ages of 6 and 13 years... -
The Gift of Growing Up in a Same-Gendered Family: A Case Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Carien Lubbe --- University of Pretoria,This article portrays the personal strengths of children growing up in same-gendered families from a positive psychological framework. One of the major challenges all children growing up in same-gendered families are faced with is the integration of their family experience... -
The Reliability of the Dyadic Satisfaction (DS) Subscale in a Low-income Semi-rural South African Community
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Elmien Lesch --- Stellenbosch University, South Africa Sarah-Kate Engelbrecht --- Stellenbosch University, South AfricaThis study investigated the reliability of the Dyadic Satisfaction (DS) subscale of the Dyadic Adjustment Scale (DAS) in a South African setting. One-hundred heterosexual, coloured, low-income, semi-rural couples with a mean age of 43.59 years and limited formal education participated... -
Processes and Functions in Higher Education Students Adjusting to a New Learning Environment: Applying The Mmogotm-Method
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Vera Roos --- North-West University, South Africa M. Kenneth Maine --- North-West University, South Africa Itumeleng P Khumalo --- North-West University, South AfricaThis article explored the processes and functions amongst a community of students who had to adjust to new social and academic settings. Thirteen university students of a predominantly seTswana ethnic background participated in the study (males = 5, females =... -
Relational Psychoanalysis Potential Usefulness with Black South African Clients
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Zelda G. Knight --- University of Johannesburg,The aim of this article is to suggest that relational psychoanalysis may be a useful approach for working with clients from indigenous African cultures. In particular, the article considers the utility of relational psychoanalysis to understanding and enacting the therapeutic... -
Combining Leadership Theory with a Psychodynamic Perspective to Explain the Functioning of a Management Team
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: René van Eeden --- University of South Africa,This article illustrates how the processes and dynamics in a management team at a South African organization reflect the leadership and personality profiles of the members of the team. Participants were the 12-member management team (including the general manager). The... -
Interrogating Narrative Approaches: Career Counselling in South African Schools
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Milton M. Nkoane --- University of Free State, Gregory Alexander --- University of Free State,This article uses an eclectic mix of theoretical underpinnings ranging from constructivism to postmodernism to argue that narrative approaches may be both constructivist and postmodernist. Career counselling is grounded in the narrative approach, meaning that the inquirer, in finding out,... -
Night Shift Working Mothers: Mutual Perceptions with Adolescent Children
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nongazi Florinah Sizane --- North-West University, Republic of South Africa Esmé van Rensburg --- North-West University, Republic of South AfricaThe study investigated the mutual perception of relationships between mothers with day and night shift work and their teenage children. A cross-sectional survey using purposeful sampling was used. Two groups of 35 mothers and their adolescent children completed a Parent-Adolescent... -
African Female Adolescents' Experience of Parenting and Their Sense of Well-Being
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Vicki Koen --- North-West University, South Africa Chrizanne van Eeden --- North-West University, South Africa Chris Venter --- North-West University, South AfricaThe objective of this study was to explore and describe South African, African female adolescents' experience of parent-adolescent relationships and their perceptions of the influence of the parent-adolescent relationship on aspects of their sense of well-being. Sixty-two African female adolescents... -
‘Bhuti’: Meaning and Masculinities in Xhosa Brothering
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lisa Saville Young --- Rhodes University, South Africa Catherine Jackson --- Rhodes University, South AfricaThe article explores the connections between context, masculinity and the fraternal relationship to understand brotherhood in Xhosa culture. The participant was a Xhosa man (32 years old, with tertiary level education). Data were collected using a semi-structured interview. The data... -
Ways of Relating and Interacting in School Communities: Lived Experiences of Learners, Educators and Parents
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ansie Elizabeth Kitching --- North-West University, South Africa Vera Roos --- North-West University, South Africa Ronél Ferreira --- University of Pretoria,This article reports on the findings of a baseline study on social interaction in schools as experienced by learners, educators and parents. A qualitative phenomenological approach was followed, utilising a cross-sectional descriptive survey design. Participants included 1 170 learners aged... -
A Longitudinal Study of the Role of Trust During Change
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nico Martins --- University of South Africa, Hartmut von der Ohe --- University of South Africa,The objective of the study was to explore factors that impact on trust relationships in a sample of South African organisations. A survey on trust was administered to a convenience sample of 484 respondents in the public and private economic... -
Older People's Portrayal in the Print Media: Implications for Intergenerational Relations
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Samiera Sedick --- North-West University, South Africa Vera Roos --- North-West University, South AfricaThis study explored the perceptions of older people in a residential care facility regarding how they are portrayed in the print media and the implications of such portrayal for intergenerational relations. Twenty-one older residents in a residential care facility participated... -
Perceived Child Rearing Practices as Predictors of University Students' Satisfaction with their Sexual Relationships
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Charisse Lowe --- University of the Free State, Edwin Devon du Plessis --- University of the Free State, Nico Nortje --- University of the Free State,The aim of this study was to determine the effects that perceived child-rearing practices have on the sexually intimate relationship satisfaction of a sample of 130 male (n=62) and female (n=68) fourth year South African university students. Participants completed the... -
Towards an Understanding of Nurturing and Restraining Relational Patterns in School Communities
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ansie Elizabeth Kitching --- North-West University, Vera Roos --- North-West University, Ronel Ferreira --- University of Pretoria,This study aimed to understand the nature of nurturing and restraining relationships in a school communiy. The inquiry entailed a single instrumental case study of a selected school community in a semi-urban context in South Africa. Participants were learners (n=720),... -
Community Engagement as Liberal Performance, as Critical Intellectualism and as Praxis
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mohamed Seedat --- University of South Africa, South AfricaThis article aims to illustrate that engagement is a dynamic and evolutionary process, moulded by contesting ideological, social actor and contextual forces. For purposes of illustration, I draw on a university-affiliated, participatory enactment of community engagement as a case example... -
“…Here We Help Each Other”: Sense of Community of People Subjected to Forced Removals
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Shingairai Chigeza --- North-West University, South Africa Vera Roos --- North-West University, South Africa Karen Puren --- North-West University, South AfricaThis study examined the sense of community of people with experience of forced removals in a South African setting. The participants were 200–108 men (54%) and 92 women (46%) between 18 and 61 years of age and selected using systematic... -
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... -
The Influence of an Unplanned Caesarean Section on Initial Mother-Infant Bonding: Mothers' Subjective Experiences
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Samantha Lynne van Reenen --- North-West University, South Africa Esmé van Rensburg --- North-West University, South AfricaThis study explored the impact of an unplanned Caesarean section on mother-infant bonding, by examining the development of maternal identities and mothers' subsequent relationships with their babies. In-depth interviews with 10 women (mean age=28; SD=1.97) explored their lived experiences of... -
African Migrants' Experiences of Xenophobic Violence in South Africa: A Relational Approach
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Shingairai Chigeza --- North-West University, Alda De Wet --- University of Limpopo, Vera Roos --- North-West University, Charl Vorster --- North-West University,This study explores the experiences of African migrants in relation to South African citizens in the course of xenophobic violence in South Africa. In a secondary data analysis of a larger research project, 44 migrants (both men and women with... -
Optimal implicational bases for finite modular lattices
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Marcel WildEach finite closure system, whence each finite lattice, can be described in terms of "implicational bases" (called "covers of functional dependencies" in relational database theory). Although a NP - complete problem in general, it turns out that for modular lattices... -
A Matching Technique and Structure Theorems for Sturm-liouville Boundary Value Problems with Interior Singularities
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: ThomasM. AchoAsymptotic solutions for the interior double pole Sturm-Liouville boundary value problem are obtained using a method of matched asymptotic approximations. Employing asymptotic forms of the Whittaker functions, the WKB approximations and Airy functions, solutions are obtained valid and non-vanishing on... -
Multivalued linear projections
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: R.W. Cross D.L. WilcoxA multivalued linear projection operator P defined on linear space X is a multivalued linear operator which is idempotent and has invariant domain. We show that a multivalued projection can be characterised in terms of a pair of subspaces and... -
Semigroups of transformations with fixed sets
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Preeyanuch Honyam --- Department of Mathematics, Faculty of Science, Thailand Jintana Sanwong --- Department of Mathematics, Faculty of Science, ThailandLet T (X) denote the semigroup (under composition) of transformations from X into itself. For a fixed subset Y of X, let Fix(X, Y) be the set of all self-maps on X which fix all elements in Y. Then Fix(X,... -
On topological spaces whose topology is induced by a binary relation
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: E. Induráin --- Departamento de Matemáticas, Spain V. Knoblauch --- Department of Economics, U.S.A.We study the problem of characterizing which topologies on a nonempty set are generated by a binary relation by means of its lower and upper contour sets. In this direction we consider different classical categories of topological spaces whose topology... -
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... -
The new female condom (FC2) in Uganda: perceptions and experiences of users and their sexual partners
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: RhodaK Wanyenze --- , Uganda Lynn Atuyambe --- , Uganda Vista Kibirige --- , Uganda Sarah Mbabazi --- , Uganda NazariusM Tumwesigye --- , Uganda Kara Djurhuus --- , Uganda Alice Namale --- , UgandaThe new version of the female condom (FC2) was introduced in Uganda in October 2009, following an unsuccessful female condom programme begun in 1998. The failure of the earlier programme was partly attributed to low acceptance of the first type... -
The use of rites of passage in strengthening the psychosocial wellbeing of orphaned children in Botswana
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Masego Thamuku --- Department of Health Promotion and Development, Norway Marguerite Daniel --- Department of Health Promotion and Development, NorwayChildren who have been bereaved in the context of AIDS may experience many challenges to their psychosocial wellbeing. Programmes to help orphaned children are usually anchored in child rights. As the individual focus of rights-based approaches is inept in African... -
Strategies to bring about change: a longitudinal study on challenges and coping strategies of orphans and vulnerable children and adolescents in Namibia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mienke Van der Brug --- , The NetherlandsLongitudinal research provides insight about the life trajectories of children, the challenges that children experience in different phases of their lives, and the way children cope with these challenges. The article examines the perspectives of 14 orphaned or vulnerable children,... -
Phylogenetic relationships between Synodontis species: some preliminary results
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: EE Bruwer FH van der Bank GJ Steyn M WinkThe aim of this study was to identify genetic markers and morphological characters to distinguish Synodontis species, because certain species are extremely difficult to identify due to the taxonomically unreliable nature of prominent morphological features. Fixed allele mobility differences were... -
Phylogenetic relationships between some African Characidae, Disticho-dontidae and Hepsetidae: results of allozyme and mtDNA data analyses
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FH van der Bank A Kotzé TM FalkThe present study considers phylogenetic relationships of some southern, eastern and western African Characidae, Distichodontidae and Hepsetidae species, for which only limited genetic data with respect to their classification and phylogeny are currently available. Thirteen species representing three families and... -
Ecophysiological responses of the salt marsh grass Spartina maritima to salinity
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: G Naidoo --- School of Biological and Conservation Sciences, South Africa Y Naidoo --- School of Biological and Conservation Sciences, South Africa P Achar --- Department of Biological and Physical Sciences, USAThe effects of salinity on growth and productivity of Spartina maritima (Curtis) Fernald were investigated in glasshouse and field experiments in 2008. In the glasshouse study, plants were subjected to 2%, 10%, 20%, 40% and 80% sea water, with tidal... -
Rapid colonisation of artificial substrates by macroinvertebrates in a South African lentic environment
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AJ Booth --- Department of Ichthyology and Fisheries Science, South Africa WT Kadye --- Department of Ichthyology and Fisheries Science, South Africa T Vu --- Department of Ichthyology and Fisheries Science, South Africa M Wright --- Department of Ichthyology and Fisheries Science, South AfricaMacroinvertebrate colonisation patterns on artificial substrates were investigated in a small reservoir in the Eastern Cape, South Africa. Semi-closed 1 000 cm3 polythene netting cages filled with either brick, gravel, shredded plastic, or equal proportions of these three materials, were... -
ON THE RELATIONSHIP BETWEEN TIGERFISH AND SARDINES IN LAKE KARIBA
Item type: Journal Article • Journal: Southern African Journal of Child and Adolescent Mental Health • Authors: B.E. Marshall --- Department of Biological Sciences, ZimbabweThere was a clear relationship in Lake Kariba between the abundance of young-of-the-year (0+) tigerfish and the sardines on which they prey. The abundant sardine population that existed before commercial fishing began accounted for the increase in tiger-fish which occurred... -
A Statistical Model for Stock Assessment of Southern Bluefin Tuna with Temporal Changes in Selectivity
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D. S. Butterworth J. N. Ianelli R. HilbornAssessment of the status of southern bluefin tuna (SBT) by Australia and Japan has used a method (ADAPT) that imposes a number of structural restrictions, and is similar to methods used for a number of stocks world-wide. A flexible method... -
Sharks caught in the protective gill nets off KwaZulu-Natal, South Africa. 10. The dusky shark Carcharhinus obscurus (Lesueur 1818)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SFJ Dudley G Cliff MP Zungu MJ SmaleBetween 1978 and 1999, a total of 5 626 dusky sharks Carcharhinus obscurus, constituting 20% of the total shark catch, was caught in the protective nets off KwaZulu-Natal, South Africa. The mean annual catch was 256 sharks (SD = 107.5,... -
Sharks caught in the protective gill nets off KwaZulu-Natal, South Africa. 11. The scalloped hammerhead shark Sphyrna lewini (Griffith and Smith)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P de Bruyn SFJ Dudley G Cliff MJ SmaleBetween 1978 and 1998, a total of 3 385 scalloped hammerhead sharks Sphyrna lewini was caught in the protective nets off KwaZulu-Natal. The mean annual catch was 166 sharks (range 60–279). There was a significant decrease in catch rate with... -
Sharks caught in the protective gill nets off KwaZulu-Natal, South Africa. 12. The African angel shark Squatina africana (Regan)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RL Shelmerdine G CliffBetween 1980 and 2001, a total of 661 African angel sharks Squatina africana was caught in the protective nets off KwaZulu-Natal, South Africa. The mean annual catch was 30 sharks (range = 11–69, SD = 12.4), with no trend in... -
Influence of the annual sardine run on catches of large sharks in the protective gillnets off KwaZulu-Natal, South Africa, and the occurrence of sardine in shark diet
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SFJ Dudley --- , South Africa G Cliff --- , South AfricaShark catches in the protective nets set off the beaches of KwaZulu-Natal (KZN), South Africa, are strongly influenced by the sardine run, the winter influx of shoals of Sardinops sagax from the south-west. The effect of the sardine run, which... -
Characteristics and value of the Thukela Banks crustacean and linefish fisheries, and the potential impacts of changes in river flow
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JK Turpie --- Anchor Environmental Consultants, South Africa SJ Lamberth --- Branch Fisheries, Department of Agriculture, Forestry and Fisheries, South AfricaThis study describes the Thukela Banks crustacean and linefish fisheries and investigates the potential impacts of reduced flow from the Thukela River on the value of these fisheries. Data were obtained from published and unpublished material, key informants and government... -
Studying Issues Related to Industry and Technology: A Journey into Interdisciplinarity
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Manik Kher [d858024e18]No research can be perfect without an interdisciplinary approach, especially in studies related to industry, which is the most dynamic of all societal aspects. Industry is sensitive to socio-economic and political scenarios. The legal system also is not free from... -
Genotype by environment interaction for volume growth at 6 years of age in a series of five Pinus patula progeny trials in southern Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Arnulf Kanzler --- Sappi Forest Research, South Africa Sieg F. Hagedorn --- , South Africa Gary R. Hodge --- CAMCORE, USA William S. Dvorak --- CAMCORE, USAGenotype x environment interaction was investigated in a series of 5 Pinus patula progeny trials planted by the Institute for Commercial Forestry Research in southern Africa. The trials were established from Mpumalanga to the North-eastern Cape in a balanced 7x7... -
Early selection of Eucalyptus clones in retrospective nursery test using growth, morphological and dry matter criteria, in Republic of Congo
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Jean-Marc Bouvet --- , France Philippe Vigneron --- , France Rachel-Aubain Saya --- , République du Congo Raphaël Gouma --- , République du CongoWithin the framework of the eucalyptus breeding programme in the Congo, two retrospective tests were conducted using mature clones in the field and young cuttings under nursery conditions with two hybrids: 13 clones of Eucalyptus tereticornis* Eucalyptus grandis for the... -
Growth potential and genetic parameters of four Mesoamerican pines planted in the Southern Hemisphere
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: GR Hodge --- Department of Forestry and Natural Resources, USA WS Dvorak --- Department of Forestry and Natural Resources, USASummary results are reported from a total of 319 provenance/progeny tests of Pinus tecunumanii, P. maximinoi, P. patula and P. greggii that were established on sites in Brazil, Colombia and South Africa. Tests were measured for the growth traits height,... -
Genetic characterisation of a Eucalyptus nitens base breeding population in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tammy-L Swain --- Institute for Commercial Forestry Research, South Africa SteveD Verryn --- Forestry and Agricultural Biotechnology Institute, South Africa MarkD Laing --- School of Agricultural Earth and Environmental Sciences, South AfricaThe measurement and statistical analysis of data from eight Eucalyptus nitens trials, established in the summer rainfall forestry region of South Africa during the 1980s and 1990s, have enabled the characterisation of the Institute for Commercial Forestry Research's breeding population... -
Couples' communication on sexual and relational issues among the Akamba in Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Ann Neville Miller Lenette Golding Kyalo wa Ngula MaryAnne Wambua Evans Mutua MaryN Kitizo Caroline Teti Nancy Booker Kinya Mwithia DonaldL RubinA large portion of HIV transmission in sub-Saharan Africa occurs among married couples, yet the majority of research on safer-sex communication has focused on communication between couples in casual relationships. This paper explores how committed Kamba couples in Machakos District,... -
How does AIDS illness affect women's residential decisions? Findings from an ethnographic study in a Cape Town township
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Rachel Bray --- Centre for Social Science Research and Department of Social Anthropology, South AfricaThis paper explores the nature and consequences of residential decision-making for women on treatment for AIDS illness in a poor urban settlement in South Africa. Drawing on ethnographic data collected over a two-year period, it points to the subtle shifts... -
Functorial relationships between lattice-valued topology and topological systems
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: J.T. Denniston S.E. RodabaughThis paper investigates functorial relationships between lattice-valued topology (arising from fuzzy sets and fuzzy logic) and topological systems (arising from topological and localic aspects of domains and finite observational logic in computer science). Two such relationships are embeddings from TopSys... -
Heritability of shoot die-back and root biomass in sixteen Pterocarpus angolensis (Fabaceae) half-sib families from Malawi, Namibia and Zambia
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: JP Mwitwa CRY Munthali G van WykThe experiment was conducted to ascertain narrow-sense heritability (h 2) and the family-within-provenance variation in shoot die-back, taproot length and root biomass of half-sib Pterocarpus angolensis families from Malawi, Namibia and Zambia. Provenances differed significantly in shoot die-back for both... -
Genetic control of wood density and bark thickness, and their correlations with diameter, in pure and hybrid populations of Eucalyptus grandis and E. urophylla in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: ECL Retief TK StangerTree diameter under and over bark at breast height (dbh), wood density and bark thickness were assessed on samples from control-pollinated families of Eucalyptus grandis, E. urophylla, E. grandis × E. urophylla and E. urophylla × E. grandis. The material... -
Modelling dimensional growth of three street tree species in the urban forest of the City of Tshwane, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: GH Stoffberg --- Department of Plant Science, South Africa MW van Rooyen --- Department of Plant Science, South Africa MJ van der Linde --- Department of Statistics, South Africa HT Groeneveld --- Department of Statistics, South AfricaTree height, crown height, crown diameter and stem diameter were measured for 282 trees of the indigenous species Combretum erythrophyllum, Searsia lancea and S. pendulina. Growth relationships were modelled using age as explanatory variable for stem diameter and subsequently stem... -
Clonal differences in log end splitting in Eucalyptus grandis in relation to age, parent performance, growth rate and wood density in two even-aged trials in Mpumalanga, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: FS MalanThis paper discusses the juvenile–mature correlation of log end splitting among Eucalyptus grandis clones from two trials and how differences in splitting relate to differences in wood density, pith-to-bark gradient and growth rate. Two approximately 20-year-old Eucalyptus grandis clonal trials... -
The opinion of patients at a local South Africa teaching hospital on physician-industry relations
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: R Wise --- University of KwaZulu-Natal, RN Rodseth --- University of KwaZulu-Natal,Objectives: This study aimed to determine how South African patients at a regional state hospital perceived the practice of physicians accepting gifts from the pharmaceutical industry. The physician-patient relationship is built on trust, with an understanding that the physician will... -
Mutual Participation in the Health Worker-Patient Relationship
Item type: Journal Article • Journal: South African Family Practice • Authors: GJO Marincowitz --- Department of Family Medicine and Primary Care, Limpopo Province Unit,The importance of a mutual participatory model in medical care and decision making is supported by literature that now shows a link between patient participation and an improved health outcome. Illness (and the sick role) constitutes a state of diminished... -
A qualitative study on the relationship between doctors and nurses offering primary health at KwaNobuhle (Uitenhage)
Item type: Journal Article • Journal: South African Family Practice • Authors: MD Qolohle --- , HH Conradie --- Dept. of Family Medicine, GA Ogunbanjo --- Dept. of Family Medicine & PHC, NH Malete --- Dept. of Family Medicine & PHC,Background -
The relationship between psychosocial variables and measures of health status in fibromyalgia
Item type: Journal Article • Journal: South African Family Practice • Authors: M Du Plessis --- Department of Psychology, HR Steel --- Department of Psychology, AT Möller --- Department of Psychology,Background: Fibromyalgia is considered to be a multifactorial condition in which a number of biological and psychological variables interact. However, the exact pathogenesis and effective treatment of fibromyalgia are still unknown. -
Pattern of domestic violence among pregnant women in Jos, Nigeria
Item type: Journal Article • Journal: South African Family Practice • Authors: ANI Gyuse --- Department of Family Medicine, Nigeria AP Ushie --- ECWA Evengel Hospital, NigeriaBackground: Domestic violence is a global concern. Domestic violence refers to violence inflicted on a partner (mostly females) within the context of the family or an intimate relationship. It is known to be responsible for numerous hospital visits undertaken by... -
The shared consultation: a necessity in primary care clinics?
Item type: Journal Article • Journal: South African Family Practice • Authors: ID Couper --- Department of Family Medicine, JFM Hugo --- Department of Family Medicine, AG Truscott --- Department of Family Medicine,The shared consultation is a concept that differs from shared decision making and shared care. It involves two or more health professionals in the consultation of a patient during the same illness episode. Commonly, the health professionals are a primary-care... -
Does health-related quality of life in asthma patients correlate with the clinical indices?
Item type: Journal Article • Journal: South African Family Practice • Authors: OA Oni --- McNeal PL, USA GE Erhabor --- Faculty of Clinical Sciences, Nigeria PO Oluboyo --- Department of Pulmonary Medicine, Faculty of Health Sciences, South AfricaBackground: Assessment of health-related quality of life (HRQOL) has been shown to be more relevant to patients who have chronic diseases such as asthma, as achieving the best possible quality of life is the paramount objective in the management of... -
Love, lust and the emotional context of multiple and concurrent sexual partnerships among young Swazi adults
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Allison Ruark --- Department of International Health, USA Lunga Dlamini --- Department of International Health, USA Nonhlanhla Mazibuko --- Department of International Health, USA Edward C Green --- Department of Population, Family and Reproductive Health, USA Caitlin Kennedy --- Department of International Health, USA Amy Nunn --- Division of Infectious Diseases, USA Timothy Flanigan --- Division of Infectious Diseases, USA Pamela J Surkan --- Department of International Health, USAMen and women in Swaziland who are engaged in multiple or concurrent sexual partnerships, or who have sexual partners with concurrent partners, face a very high risk of HIV infection. Ninety-four in-depth interviews were conducted with 28 Swazi men and... -
Hearing loss within a marriage: perceptions of the spouse with normal hearing
Item type: Journal Article • Journal: South African Family Practice • Authors: NG Govender --- Discipline of Audiology, N Maistry --- Discipline of Audiology, N Soomar --- Discipline of Audiology, J Paken --- Discipline of Audiology,Objective: The objective of the study was to determine the perceptions of a spouse about the influence of his or her partner's hearing loss on their relationship as it may have an impact on aural rehabilitation. -
Adding ‘Flock’ to ‘Fight and Flight’: A Honeycomb of Resilience Where Supply of Relationships Meets Demand for Support
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Liesel Ebersöhn --- Unit for Education Research in AIDS, Faculty of Education, South AfricaIn this article I explain how solidarity can support positive adjustment, collective in nature, where people face chronic, cumulative stress and largely lack resources. I propose that when individuals use relationships as a way to access and mobilise resources, an... -
Felicitas Publica and community well-being: nourishing relational goods through dialogic conversations between deprived and privileged populations
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Helena Águeda Marujo --- School of Social and Political Sciences, Portugal Luis Miguel Neto --- School of Social and Political Sciences, PortugalThis article discusses the theoretical justifications, presumed relevance and value of using community interventions designed to be appreciative and strengths based, participatory and conversational, context sensitive and value driven, to promote well-being actions and coordinated meaning between privileged persons and... -
You, me, and meaning: an integrative review of connections between relationships and meaning in life
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Maeve B. O’Donnell --- Colorado State University, United States of America Christof N. Bentele --- Colorado State University, United States of America Hannah B. Grossman --- Colorado State University, United States of America Yunying Le --- Colorado State University, United States of America Hoon Jang --- Seoul University, Korea Michael F. Steger --- Colorado State University, United States of AmericaSocial relationships are seen to be vital to human functioning, both in terms of psychological functioning and physical health. Relationships are a cornerstone of well-being. For instance, having positive relationships has been linked to greater happiness, life satisfaction and physical... -
Meaning and relational well-being: a reflection on the state of the art and a way forward
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marié P. Wissing [cor1]This paper provides a brief overview of facets of meaning and relational well-being highlighting the foci of current research on meaning, relationships as sources of meaning, contextual relevance and meta-theoretical assumptions. Lacunae in knowledge are indicated and a model proposed... -
Meaning as perceived and experienced by an African student group
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marié P. Wissing --- Unit for Transdisciplinary Health Research, South Africa Itumeleng P. Khumalo --- Optentia Research Focus Area, South Africa Shingairai C. Chigeza --- Unit for Transdisciplinary Health Research, South AfricaThis qualitative study explored what a Batswana group of African students (N = 73) find most meaningful in their life and why those sources of meaning are important to them. Findings showed that, in line with previous Western studies, the most important... -
Genetic parameters for Fusarium circinatum tolerance within openpollinated families of Pinus patula tested at screening facilities in South Africa and the USA
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Andre Nel --- Sappi Forest Research, South Africa Gary R Hodge --- Department of Forestry and Natural Resources, USA Kgosi E Mongwaketsi --- Sappi Forest Research, South Africa Arnulf Kanzler --- Sappi Forest Research, South AfricaThe pine pitch canker fungus, Fusarium circinatum, has caused large-scale mortality of Pinus patula Schiede & Deppe ex Schltdl. & Cham. crops in South African nurseries. This disease is now managed with strict hygiene practices and mortality in commercial nurseries... -
Generational inversions: ‘working’ for social reproduction amid HIV in Swaziland
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Casey Golomski --- Department of Anthropology, South AfricaHow do people envision social reproduction when regular modes of generational succession and continuity are disrupted in the context of HIV/AIDS? How and where can scholars identify local ideas for restoring intergenerational practices of obligation and dependency that produce mutuality... -
Practicing pan-Africanism: an anthropological perspective on exile-host relations at Kongwa, Tanzania
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Christian A. Williams --- Institute for Reconciliation and Social Justice, South AfricaThis paper explores exile-host relations at Kongwa, where southern Africa's first guerrilla soldiers lived alongside villagers in rural, central Tanzania between 1964 and 1978. Drawing from the author's previous research on SWAPO's exile camps, recent publications about the ANC in... -
Topological systems versus attachment relations
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Cosimo Guido --- Department of Mathematics “Ennio De Giorgi”, Italy Sergey A. Solovyov --- Department of Mathematics and Statistics, Faculty of Science, Czech RepublicThe manuscript makes a category-theoretic comparison between the concepts of topological system of S. Vickers and attachment relation of C. Guido. With the help of the recent definition of the notions in the framework of an arbitrary variety of algebras,... -
Molecular diversity and phylogenetic relationships of the gastropod genus Melanoides in Lake Malawi
Item type: Journal Article • Journal: African Zoology • Authors: Louise Von Gersdorff Sørensen --- Mandahl-Barth Research Center for Biodiversity and Health, DBL — Institute for Health Research and Development, Denmark Aslak Jørgensen --- Mandahl-Barth Research Center for Biodiversity and Health, DBL — Institute for Health Research and Development, Denmark Thomas K. Kristensen --- Mandahl-Barth Research Center for Biodiversity and Health, DBL — Institute for Health Research and Development, DenmarkThe freshwater snails belonging to the genus Melanoides Olivier, 1804 are widespread across tropical regions of the world and endemic species have evolved in the African Lakes Malawi, Mweru and Tanganyika. The endemic Melanoides species of Lake Malawi have been... -
Lion predation on elephants in the Savuti, Chobe National Park, Botswana
Item type: Journal Article • Journal: African Zoology • Authors: R. John Power --- Carnivore Conservation Group, Endangered Wildlife Trust, De Beers Venetia Limpopo Nature Reserve, South Africa R. X. Shem Compion --- Carnivore Conservation Group, Endangered Wildlife Trust, De Beers Venetia Limpopo Nature Reserve, South AfricaLions rarely prey on elephants. Botswana‘s Savuti lions, however, switch to preying on elephants during the late dry season (August–November), and the frequency of this has increased in the last two decades (1985–2005). An opportunity to document this phenomenon was... -
Spatial genetic pattern in an economically beneficial insect, the cyclical African wild silk moth (Gonometa postica)
Item type: Journal Article • Journal: African Zoology • Authors: Timothy C. Bray --- Department of Zoology and Entomology, South AfricaThe African wild silk moth (Gonometa postica) exhibits large inter-annual population size fluctuations in the Kalahari region of southern Africa. Spent cocoons from this species are currently being utilized in a local silk industry. An understanding of the recolonization dynamics... -
Predictors of quality of life enjoyment and satisfaction in individuals living with HIV and AIDS in a resource-constrained setting in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kim Jonas --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Pamela Naidoo --- Population Health, Health Systems and Innovation, Human Sciences Research Council, South Africa Nicolette Vanessa Roman --- Faculty of Community and Health Sciences, South Africa Luis Angel Saúl Gutiérrez --- Facultad de Psicología, UNED, Guillem Feixas --- University of Barcelona, SpainThe burden of HIV disease is concentrated in sub-Saharan Africa, particularly in South Africa (SA). Whilst there have been many studies conducted on the biomedical and socio-psychological aspects of HIV and AIDS, insufficient attention has been paid to the quality... -
Indigenizing counselling valuing the afterlife with the Igbo of south eastern Nigeria: a case for ino-uwa based intervention
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Chika Eze --- Department of Psychology, Faculty of Education, KenyaThis study examines prospects for the utilization of the concept of ino-uwa practised by the Igbo cultural-linguistic community of South Eastern Nigeria to understand and address counselling needs of a child and his family. Ino-uwa is the cultural familial scaffold... -
Resourcing single parents in a South African community rural setting: an exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Alfred Motalenyane Modise --- Faculty of Education, South AfricaThis study investigated the resource needs of single parents as child carers. Participants were a purposive sample of 40 single parents (female = 70%, Black = 95%, rural 80%; age range 30 to 55 years old). Data on resource needs of single parents were... -
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... -
The interstices of hospitality
Item type: Journal Article • Journal: • Authors: Luiz Octávio de Lima Camargo --- School of Hospitality and Tourism, Anhembi Morumbi University, São Paulo, BrazilThis paper is a review of previous works, and it shows the notion of hospitality situated at the confluence of the concepts of interpersonal relationships, virtue, rites and commercial/non-commercial exchange. In doing so it discusses the most significant authors who... -
Recent evidence on the persistence of fund performance – A note
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: D Bradfield --- Department of Statistical Sciences, J Swartz --- University of Cape Town,This note highlights recent evidence on the persistence of fund performance in South Africa, throwing new light on the 1985–1995 study conducted by Meyer (1997). Our analysis on the persistence of South African fund performance is based on the General... -
Benthic macroinvertebrate assemblage composition and distribution pattern in the upper Mthatha River, Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AS Niba --- Department of Biological and Environmental Science, South Africa SP Mafereka --- Department of Biological and Environmental Science, South AfricaBenthic macroinvertebrates were sampled and environmental variables measured at Langeni Forest and Kambi Valley, two sites of varying degrees of human impact in the upper Mthatha River, South Africa, in 2010–2011. Four species, Simulium adersi Pomeroy, Baetis harrisoni Barnard, Pseudocloeon... -
Southern African pasture and forage science entering the 21st century: past to present
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Wayne F Truter --- Department of Plant Production and Soil Science, South Africa Philip R Botha --- Directorate Plant Sciences, Western Cape Department of Agriculture, South Africa Chris S Dannhauser --- Grass SA, Waverley, South Africa Barbara V Maasdorp --- Department of Crop Science, Zimbabwe Neil Miles --- South African Sugarcane Research Institute, South Africa Albert Smith --- Stats4science, South Africa Hennie A Snyman --- Department of Animal, Wildlife and Grassland Sciences, South Africa Neil M Tainton --- Amber Valley, South AfricaGiven the global challenges of mitigating and alleviating land degradation and ensuring food security, particularly through protein production, pasture and forage science together with rangeland science will remain imperative to sustainable livestock production systems. Recognising the scientific principles developed in... -
The nature of quality of life in residential care facilities: the case of White older South Africans
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lizanlé van Biljon --- Africa Unit for Transdisciplinary Health Sciences, South Africa Vera Roos --- Africa Unit for Transdisciplinary Health Sciences, South AfricaThis study describes the nature of quality of life (QoL) from the perspective of older South Africans (n = 41) in residential care facilities (female = 75%; age range 62–95 years). The residents participated in individual in-depth interviews and focus groups. They also... -
Political intolerance: the role of intergroup threat and negative intergroup emotion
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Melina Ojiambo --- Department of Psychology, South Africa Johann Louw --- Department of Psychology, South AfricaThis study investigated whether the perception of intergroup threat, and intergroup emotion, are related to political intolerance. One hundred and twenty three South African undergraduate students (females = 76%; males = 24%; White = 65%; Coloured = 24%; Indian = 8%; Chinese = 2%; mean age = 19.8, SD = 3.03 years) were randomly assigned... -
Recent evidence on the persistence of fund performance—A note
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: D Bradfield --- Quantitative Research, Cadiz Holdings, J Swartz --- University of Cape Town,This note highlights recent evidence on the persistence of fund performance in South Africa, throwing new light on the 1985–1995 study conducted by Meyer (1997). Our analysis on the persistence of South African fund performance is based on the General... -
Relationship complexities among women with obstetric fistula in Zimbabwe: an exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Levison Maunganidze --- Department of Psychology, Zimbabwe Tholene Sodi --- Department of Psychology, South Africa Julia Mutambara --- Department of Psychology, Zimbabwe Sibusiso Nkiwane --- Department of Psychology, ZimbabweThis study sought to determine how obstetric fistula affects women's intimate partner relationships or other social ties. A purposive sampling of eleven women (age range 17 to 31) with obstetric fistula admitted to two hospitals in Zimbabwe was done. In-depth... -
Perceived organisational support influences on job satisfaction and organisational commitment among junior academic staff members
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Fumani Donald Mabasa --- Department of Business Management, South Africa Hlanganipai Ngirande --- Department of Human Resource Management, South AfricaThis study investigated the relationship between perceived organisational support, employee job satisfaction and organisational commitment among junior academic staff of a South African higher education institution (N =70; female = 41 .4%; masters qualification = 85 .7%). Participants completed a... -
Community, family and intimate relationships: an exploration of domestic violence in Griquatown, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Linda Waldman --- Institute of Development Studies, University of Sussex, UKThis paper explores domestic violence in the rural location of Griquatown, South Africa. Although academics have long recognised that structural and cultural factors influence people's experience of domestic violence, not much has been written about the manner in which this... -
Near-shore distribution of Heaviside’s (Cephalorhynchus heavisidii) and dusky dolphins (Lagenorhynchus obscurus) at the southern limit of their range in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: S.H. Elwen --- Mammal Research Institute, University of Pretoria, South Africa M. Thornton --- Mammal Research Institute, University of Pretoria, 0001 Pretoria c/o Iziko South African Museum, South Africa D. Reeb --- Mammal Research Institute, University of Pretoria, South Africa P.B. Best --- Mammal Research Institute, University of Pretoria, 0001 Pretoria c/o Iziko South African Museum, South AfricaPhoto-identification surveys over three years along 390 km of coastline north of Cape Town, revealed that Heaviside’s dolphin distribution was consistent between years and higher in areas more exposed to swells and with greater long-term availability of small hake Merluccius... -
“Giving God his due?” Understanding tithing and its function within the Seventh-Day Adventist Church
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Evan Carl Edward Jacobs --- NRF Chair in History Programme: “Local Histories and Present Realities,”, South AfricaThis paper focuses on the practice of tithing as an extraordinary form of religious giving. Tithing involves habitually giving ten percent of one's income to the church, and since this is such a significant portion of a person's income, its... -
The role of teammate relationships, communication and self-efficacy in predicting athlete flow experience
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Frederick W. Stander --- Optentia Research Focus Area, South Africa Sebastiaan Rothmann --- Optentia Research Focus Area, South Africa Elrie Botha --- Optentia Research Focus Area, South AfricaThis study aimed at testing a structural model of athlete flow in a sample of South African students. A quantitative, cross-sectional research design was implemented. Participants completed self-report measures at pre-arranged times that were in close proximity to the completion... -
Intergroup contact experience and frequency as predictors of cross-racial attitudes
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Elirea Bornman --- Department of Communication Science, South AfricaThis study examined the relationships between contact frequency, experiences of intergroup contact and a number of demographic intergroup variables. A telephone survey was conducted among 544 blacks (57.5% male; 42.5% female) and 478 whites (44.6% male; 55.4% female). Three CHAID... -
Tomatis® Method comparative efficacy in promoting self-regulation in tertiary students: A systematic review
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Annelize Bonthuys --- School for Psychosocial Behavioural Sciences, North-West University:, South Africa Karel Botha --- School for Psychosocial Behavioural Sciences, North-West University:, South AfricaThis systematic review sought to determine the evidence on how the Tomatis® Method, a sound stimulation intervention for improving listening, compares to other self-regulation interventions with tertiary students. We searched studies from the following data bases ‘Academic FileOne, CINAHL, Cochrane... -
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... -
Using an unbaited stationary video system to investigate the behaviour and interactions of bull sharks Carcharhinus leucas under an aquaculture farm
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: N Loiseau --- Institut de Recherche pour le Développement [IRD], UMR ENTROPIE (IRD, Universite de La Réunion, CNRS), Laboratoire d'Excellence [LABEX] CORAIL, France JJ Kiszka --- Marine Sciences Program, Department of Biological Sciences, USA T Bouveroux --- Coastal and Marine Research Institute, Nelson Mandela Metropolitan University, South Africa MR Heithaus --- Marine Sciences Program, Department of Biological Sciences, USA M Soria --- IRD – UMR EME, France P Chabanet --- Institut de Recherche pour le Développement [IRD], UMR ENTROPIE (IRD, Universite de La Réunion, CNRS), Laboratoire d'Excellence [LABEX] CORAIL, FranceBull sharks Carcharhinus leucas are common along the coast of Reunion Island (South-West Indian Ocean) and were suspected to aggregate in the vicinity of an aquaculture farm in Saint-Paul Bay on the west coast. In order to understand the behaviour... -
Workplace innovation influence on occupational safety and health
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kassu Jilcha --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, Ethiopia Daniel Kitaw --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, Ethiopia Birhanu Beshah --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, EthiopiaInnovation is an important science for the sustainable development of any country. Workplace innovation brings radical change in the workers’ environment, thereby enhancing the profitability of companies. However, most research and discussion of innovations are focussed on product development and/or... -
Psychometric properties of beliefs about relationship violence against women and gender stereotypes scale
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sunday B. Fakunmoju --- Department of Social Work, USA Funmi O. Bammeke --- Department of Sociology, Nigeria Felicia A. D. Oyekanmi --- Department of Sociology, Nigeria Segun Temilola --- Department of Sociology, Nigeria Bukola George --- Department of Sociology, NigeriaThis article describes psychometric properties of the Gender-Based Relationship Violence Beliefs Scale (BEREVIWOS) and the Gender Stereotypes and Beliefs (GESTABE) scale in a Nigerian setting. Analysis was based on a convenience sample of 202 respondents. Confirmatory factor analysis (CFA) was... -
Child sexual abuse and literacy achievement in a sample of South African primary school children
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jace Pillay --- South African Research Chair, Education and Care in Childhood,This study investigated child sexual abuse (CSA) and literacy achievement among South African primary school children. Data on self-reported experience of CSA and actual literacy achievement were collected from a convenience sample of 160 learners from a Soweto school in... -
Estimates of genetic parameters and genetic gains for growth traits of two Eucalyptus urophylla populations in Zululand, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Gert J van den Berg --- Mondi Forests (Pty) Ltd, South Africa Steven D Verryn --- Creation Breeding Innovations cc, South Africa Paxie W Chirwa --- School of Natural and Agricultural Sciences, South Africa Francois van Deventer --- Mondi Forests (Pty) Ltd, South AfricaIn South Africa, Eucalyptus urophylla is an important species due to its disease tolerance to fungal diseases such as Crysoporthe austroafricana and the Coniothyrium sp. cankers. It is mainly planted as a parental species in a hybrid combination with E... -
Engagement of secondary school teachers in Namibia: Relational context effects
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Manfred Janik --- University of Namibia, Windhoek, Sebastiaan Rothmann --- North-West University, South AfricaThe aim of this study was to investigate relational antecedents of work engagement for secondary school teachers and to determine whether specific psychological conditions mediate the effects of relational factors on work engagement. A cross-sectional survey was used. The participants... -
The meaning of compliance with land and labour legislation: understanding justice through farm workers’ experiences in the Eastern Cape
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Femke Brandt --- Centre for African Studies, South Africa Fani Ncapayi --- Centre for African Studies, South AfricaThis paper explores the social meanings and uses of formal labour legislation on commercial farms in the Eastern Cape. Farm workers’ and dwellers’ experiences expose ongoing land and labour struggles on South Africa’s commercial farms. We focus on the ways... -
Name changes and additions to the southern African freshwater fish fauna
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PH Skelton --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaChanges made to the scientific names of southern African freshwater fishes since 2001 are explained and discussed. Adjustments to the phylogeny and classification of the fauna are outlined. Recent systematic studies on cyprinines are discussed and changes to the genera... -
Exploratory study of mindfulness in modern-day sport psychology consulting relationships
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Julius Jooste --- Department of Sport, Rehabilitation and Dental Sciences, South Africa Ankebé Kruger --- Physical Activity, Sport and Recreation (PhASRec), South Africa Barend J. M. Steyn --- Department of Sport and Leisure Studies, South Africa David J. Edwards --- Department of Psychology, South AfricaThis study explored sport psychology practitioners’ mindfulness in relation to the quality of consulting relationships and value within contemporary practice. A total of 34 sport psychology practitioners from South Africa (n = 22, females = 41%) and the United Kingdom... -
Positive employment relations: A qualitative meta-synthesis of the evidence
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Stacey Smith --- Optentia Research Focus Area, North-West University, South Africa Elsabé Diedericks --- Optentia Research Focus Area, North-West University, South AfricaThis study utilises a qualitative meta-synthesis approach to scope the evidence on qualities that define positive employment relations. The selection criteria included the identification of emerging themes, concepts and commonalities comprising positive employment relations throughout literature. Findings suggest that 21... -
The interstices of hospitality
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Luiz Octávio de Lima Camargo --- School of Hospitality and Tourism, Anhembi Morumbi University, BrazilThis paper is a review of previous works, and it shows the notion of hospitality situated at the confluence of the concepts of interpersonal relationships, virtue, rites and commercial/non-commercial exchange. In doing so it discusses the most significant authors who... -
What drives customers to use access-based sharing options in the hospitality industry?
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Can Lu --- Department of Human Sciences, USA Jay Kandampully --- Department of Human Sciences, USAAccess-based sharing businesses have gained popularity in the hospitality industry. The recent shift of customers’ willingness to share accommodation with a host as opposed to using a private hotel room has many implications for the traditional lodging sector. Sharing firms... -
Allometric models for height and aboveground biomass of dominant tree species in South African Mistbelt forests
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Sylvanus Mensah --- Department of Forest and Wood Science, South Africa Ruan Veldtman --- South African National Biodiversity Institute, South Africa Thomas Seifert --- Department of Forest and Wood Science, South AfricaNovel species-specific equations for the estimation of height and aboveground biomass were established for four dominant tree species (Syzygium gerrardii Burtt Davy, Combretum kraussii Hochst., Trichilia dregeana Sond. and Croton sylvaticus Hochst.), in the Northern Mistbelt Forests of South Africa... -
Love grows with sex: teenagers negotiating sex and gender in the context of HIV and the implications for sex education
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Deevia Bhana --- School of Education, South AfricaHow do teenagers located in the KwaZulu-Natal province of South Africa, the epicentre of the HIV pandemic, give meaning to sexuality? This paper examines teenage black Africans investments in sex and sexuality and the gendered dynamics through which sexuality is... -
Identity and acculturation: The case for Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Byron G. Adams --- Tilburg University, the Netherlands and University of Johannesburg, South Africa Fons J. R. van de Vijver --- Tilburg University, The Netherlands, North-West University, South Africa, and University of Queensland, AustraliaDespite the multicultural nature of African societies, there is still very little knowledge about acculturation and its association with identity on this continent. Acculturation processes and outcomes are strongly associated with identity. The objective of this article is to relate... -
Long-run adjustment of size, value, momentum and growth premium in equity returns: Evidence from South Asian emerging markets
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Adnan Shoaib --- Management Sciences, Pakistan Muhammad Ayub Siddiqui --- FAST School of Management, PakistanThis study scrutinizes the long-run adjustment of risk premiums in equity returns of the emerging stock markets of Pakistan, China and India, the three emerging South Asian economies, by keeping in view leading contributions of the Fama and French (1992)... -
Half-sib family variation in shoot and root traits of seedlings of Pterocarpus angolensis (family: Fabaceae; syn. Papilionaceae)
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: JP Mwitwa CRY Munthali G van WykPhenotypic and genetic variation in shoot and root traits occurs between half-sib families from Malawi. Heritability was high for shoot height and root collar diameter (h 2 ≤ 0.90) while that for shoot and root traits was low to moderate... -
Selection of drought-tolerant tef (Eragrostis tef) genotypes using drought tolerance indices
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Mizan Tesfay Abraha --- African Centre for Crop Improvement, South Africa Hussein A Shimelis --- African Centre for Crop Improvement, South Africa Mark D Laing --- African Centre for Crop Improvement, South Africa Kebebew Assefa --- Debre-Zeit Agricultural Research Centre, EthiopiaDrought stress is one of the major abiotic constraints affecting production and productivity of tef (Eragrostis tef). Genetic resources and selection methodologies are among the prerequisites to improve the efficiency of breeding for drought tolerance. The objectives of this study... -
Principals’ experiences of being disempowered by union members
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Chris Myburgh --- Department of Educational Psychology, South Africa Marie Poggenpoel --- Department of Educational Psychology, South Africa Veronica Mapitso Kgabo --- Department of Educational Psychology, South AfricaThis study explored school principals’ experience of managing unionised schools in South Africa. Qualitative in-depth phenomenological interviews were conducted with a purposeful selected sample of 13 school principals of unionised schools (age range 36-60 years). The school principals responded to... -
Love matters: exploring conceptions of love in Rwanda and Swaziland and relationship to HIV and intimate partner violence
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Allison Ruark --- Department of Medicine, USA Erin Stern --- Department of Global Health and Development, UK Thandeka Dlamini-Simelane --- Institute for Health Measurement, Swaziland Marie Fidele Kakuze --- Independent Consultant, SwazilandHealth risks such as intimate partner violence (IPV) and HIV infection often occur within intimate sexual relationships, yet the study of love and intimacy is largely absent from health research on African populations. This study explores how women and men... -
Mother- and daughter-in-law relationship within a South African context: Influence of family systems
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Tebogo Rosina Nganase --- Department of Psychology, South Africa Wilna Basson --- Department of Psychology, South AfricaThis study explored family system influences on mother-in-law and daughter-in-law relationships in a South African setting. A convenience sample of 20 mothers-in-law (age range from 40 to 86) and 20 daughters-in-law (age range from 20 to 60) were informants. They... -
Measuring dimensions of social climate among South African higher education students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Chris Myburgh --- Department of Educational Psychology, South Africa Marie Poggenpoel --- Department of Nursing Science, South Africa Marie Hastings-Tolsma --- Department of Nursing Science, South AfricaWe investigated the structure of social climate among university students to characterise the relative importance of personal and interpersonal factors. Participants were 266 students from a school of education of a large South African university (females = 66.5%; black =... -
Combating Corruption in Africa through Institutional Entrepreneurship: Peering in from Business-government Relations
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Tahiru Azaaviele Liedong --- School of Management, UKCorruption remains a significant barrier to the socio-economic development of Africa, despite efforts by various local, national and international stakeholders to combat it. Mishra and Maiko (2017), in their article which was published in Africa Journal of Management, suggest that... -
The winner takes it all: Outperformance drives subsequent flows in South African Unit Trust Funds
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Jennifer Arendse --- Gordon Institute of Business Science, South Africa Chris Muller --- Gordon Institute of Business Science, South Africa Michael Ward --- Gordon Institute of Business Science, South AfricaThe relationship between unit trust (mutual fund) performance and subsequent investment flows into and out of funds has been the focus of many international studies. Emerging markets, which are characterised by higher risk, weaker institutions, volatile economies and fewer participants,... -
Genetic variability of growth and wood chemical properties in a clonal population of Eucalyptus urophylla × Eucalyptus grandis in the Congo
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Garel Makouanzi --- Centre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles (CRDPI), Republic of the Congo Gilles Chaix --- CIRAD, France Sophie Nourissier --- CIRAD, France Philippe Vigneron --- Centre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles (CRDPI), Republic of the CongoThirty-four Eucalyptus urophylla × Eucalyptus grandis hybrids were evaluated with a view to selecting for improved growth and wood-quality traits for plantations in the Congo. Height, circumference at breast height and volume were measured at 12, 27, 37, 49 and... -
Conceptions of love in Ghana: An exploration among Ghanaian Christians
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Annabella Osei-Tutu --- Department of Psychology, Ghana Vivian A. Dzokoto --- Department of African American Studies, USA Katja Hanke --- Survey Design and Methodology, Germany Glenn Adams --- Department of Psychology, USA Faye Z. Belgrave --- Department of Health Psychology, USAWe explored conceptions of love from the perspective of Ghanaian Christians. Using an ethnographic approach, we interviewed 61 participants (males = 39; females = 22; age range 20 to 70) on their understanding and experiences of love in the context... -
The psychological experiences of foster mothers of adolescent children
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Keolebogile Betty Mosimege --- Department of Psychology, South Africa Frederik Snyders --- Department of Psychology, South AfricaThe present study explored the psychological experiences of foster mothers who were fostering adolescents abandoned by their biological parents and whose parents had passed away. A purposive sample of 20 foster mothers (age range 25 to 83 years) was informants... -
Correlation and path-coefficient analyses of root yield and related traits among selected sweetpotato genotypes
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Fekadu Gurmu --- South Agricultural Research Institute, Ethiopia Hussein A Shimelis --- African Centre for Crop Improvement, South Africa Mark D Laing --- African Centre for Crop Improvement, South AfricaThe objective of this study was to assess associations between yield and yield-related traits, and to identify the most efficient yield-predicting traits in sweetpotato for effective selection. Twenty-five newly developed sweetpotato genotypes were evaluated across six environments using a 5... -
Human and plant interfaces: relationality, knowledge and practices
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Diana Gibson --- Department of Anthropology and Sociology, South Africa William Ellis --- Department of Anthropology and Sociology, South AfricaThis introduction to the special issue on “Human-Plant Interfaces: Relationality, Knowledge and Practices” briefly makes a case for the ethnography of the human-plant interface by referring to three interrelated aspects that emerge from the set of papers that follow. These... -
Cell phone usage relational regulation strategies of older South Africans
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sandra Steyn --- Optentia Research Focus Area, South Africa Vera Roos --- Optentia Research Focus Area, South Africa Karel Botha --- Community Psychosocial Research (COMPRES), South AfricaThis study explored older South Africans’ relational regulation strategies in using their cell phones to address their social goals and psychosocial needs. Nineteen older South Africans (17 female; 2 male), aged 60 and older, who had access to a cell... -
Carbon stocks and productivity of mangrove forests in Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Marco A Njana --- National Carbon Monitoring Centre, Tanzania Eliakimu Zahabu --- National Carbon Monitoring Centre, Tanzania Rogers E Malimbwi --- Department of Forest Mensuration and Management, TanzaniaMangroves offer a number of ecosystem goods and services, including carbon (C) storage. As a carbon pool, mangroves could be a source of CO2 emissions as a result of human activities such as deforestation and forest degradation. Conversely, mangroves may... -
Studies on the biology of Nile tilapia (Oreochromis niloticus) in Lake Victoria, Kenya: in light of intense fishing pressure
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: E Yongo --- Department of Fisheries and Aquatic Sciences, Kenya N Outa --- Department of Biological Sciences, Kenya K Kito --- Graduate School of Fisheries, Japan Y Matsushita --- Graduate School of Fisheries, JapanNile tilapia Oreochromis niloticus is now the most abundant and commercially important tilapiine in Lake Victoria. From the total of 1 512 fish sampled from commercial gill net fisheries during 2014 and 2015, 809 (54%) were males and 672 (44%)... -
Effect of moringa extract on the leaf anatomy and yield potential of tomato infected by Alternaria solani
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Culver Mvumi --- Department of Plant and Soil Science, South Africa Diana Marais --- Department of Plant and Soil Science, South Africa Elizabeth Ngadze --- Department of Crop Science, Zimbabwe Elsa S du Toit --- Department of Plant and Soil Science, South Africa Albert Tsindi --- Faculty of Agriculture, ZimbabweTomato is often exposed to hormones and diseases, among other factors, to which responses in leaf anatomy and yield are observed. This study evaluated responses in the leaf anatomy of Alternaria solani infected (IN) and non-infected (NIN) tomato (Solanum lycopersicum)... -
Spatial distribution of male display sites in a North African population of Houbara Bustard Chlamydotis undulata undulata
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Mohsen Chammem --- Institut des Regions Arides, Tunisia Mohsen Jarray --- Institut des Regions Arides, Tunisia Touhami Khorchani --- Institut des Regions Arides, TunisiaUnderstanding the effect of habitat characteristics on the distribution of threatened species are fundamental in conservation planning and management. Here, we explore the spatial distribution pattern of display site by the North African Houbara Bustard Chlamydotis undulata undulata males. For... -
Spatial considerations when monitoring reef fishes
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Parker --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa H Winker --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa ATF Bernard --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa MKS Smith --- South African National Parks, Rondevlei Scientific Services, South Africa A Götz --- South African Environmental Observation Network (SAEON), South AfricaSpatial dependence can obscure relationships between response and explanatory variables because of structuring within the residuals reducing variance and biasing coefficient estimates. Here, we highlight the influence of the spatial component, in the presence of spatial dependence, on abundance trends... -
Crayfish, catfish and snails: the perils of uncontrolled biological control
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BE Marshall --- Great North Road, New ZealandA recent proposal that the Australian redclaw crayfish Cherax quadricarinatus and hybrid catfish could potentially control the snail hosts of schistosomiasis has been criticised on the grounds that crayfish pose a severe threat to aquatic ecosystems into which it might... -
Prediction of overt aggression experienced by college students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Chris Myburgh --- Department of Educational Psychology and Nursing Science, South Africa Marie Poggenpoel --- Department of Educational Psychology and Nursing Science, South Africa Cornelius Fourie --- Department of Educational Psychology and Nursing Science, South AfricaWe sought to predict overt aggression among college students from their intra- and interpersonal relationships self-perceptions. Respondents were 311 students (females = 69.8%; black = 65.9%, white = 16.7%; mean age = 26.38 years, SD = 9.57 years) from a... -
Gender Representation in Simba and Yanga’s Joking Cartoons in Tanzania
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Shani Omari --- Institute of Kiswahili Studies, United Republic of TanzaniaSimba and Yanga are popular soccer teams in Tanzania and are known as long-time joking partners. Several cartoons have emerged in relation to their joking relationship. This paper examines how gender is represented in the joking cartoons between these two... -
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 potential impact of dietary supplement adulteration on patient assessment and treatment from a healthcare provider’s perspective
Item type: Journal Article • Journal: South African Family Practice • Authors: Gary Gabriels --- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, South Africa Mohamed Irhuma --- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, South AfricaDietary supplements have been manufactured and supplied to the market with the objective of enhancing the overall health of the general population and optimising the performance of athletes. The perceived intention of dietary supplementation is to increase the nutritional content... -
The quality of feedback from outpatient departments at referral hospitals to the primary care providers in the Western Cape: a descriptive survey
Item type: Journal Article • Journal: South African Family Practice • Authors: Robert Mash --- Division of Family Medicine and Primary Care, South Africa Herma Steyn --- Department of Health, South Africa Muideen Bello --- Division of Family Medicine and Primary Care, South Africa Klaus von Pressentin --- Division of Family Medicine and Primary Care, South Africa Liezel Rossouw --- Department of Health, South Africa Gavin Hendricks --- Division of Family Medicine and Primary Care, South Africa Germarie Fouche --- Department of Health, South Africa Dusica Stapar --- Division of Family Medicine and Primary Care, South AfricaBackground: Coordinating care for patients is a key characteristic of effective primary care. Family physicians in the Western Cape formed a research network to enable them to perform practical research on key questions from clinical practice. The initial question selected... -
Time varying correlations and causalities between stock and foreign exchange markets: Evidence from China, Japan and Korea
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Young K. Park --- Business School, Korea Ki Beom Binh --- Department of Economics, Korea Suk-Joong Kim --- Discipline of Finance, AustraliaThis paper examines the time-varying relationship between the stock and the foreign exchange markets for China, Japan and Korea for the period July 2005 to November 2013. The cross-market relationship within each country differs among the three countries and varies... -
Seasonal and successional patterns of phytoplankton in Epe Lagoon, Lagos, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OA Kunrunmi --- Department of Botany, Nigeria TA Adesalu --- Department of Botany, NigeriaVariations in phytoplankton species abundance and composition are regulated by changes in physico-chemical factors. A study of biodiversity and successional sequences was carried out monthly from November 2012 to April 2014 to determine the environmental factors controlling phytoplankton assemblages in... -
Correlation and path coefficient analyses of yield and yield components in drought-tolerant bread wheat populations
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Kwame W Shamuyarira --- African Centre for Crop Improvement, South Africa Hussein A Shimelis --- African Centre for Crop Improvement, South Africa Isack Mathew --- African Centre for Crop Improvement, South Africa Toi J Tsilo --- Agricultural Research Council–Small Grains, South AfricaCorrelation and path coefficient analyses of economic traits is important in identifying traits that can be used to simplify selection of complex traits such as grain yield. The aim of this study was to determine the degree of association between... -
The relationship between perceived parenting dimensions, attachment, and pre-adolescent bullying
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mariska Carter --- Department of Psychology, South Africa Ronél van der Watt --- Department of Psychology, South Africa Karel Esterhuyse --- Department of Psychology, South AfricaThis study investigated the mediating and/or moderating role of pre-adolescent learners’ perception of their parent-child attachment on the relationships between perceived parenting dimensions (acceptance, firm control, and psychological control) and types of bullying experience (physical, verbal, social-relational, and cyber-bullying). We... -
Value co-creation effects on transaction cost, relational capital, and loyalty of hair salon customers: Results and implications of a Ghanaian study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Wen Xiao --- , China Christian Narh Opata --- , China Stephen Tetteh --- , China Tettey-Wayo John Narh --- , Ghana Robert E. Hinson --- , GhanaThis study aimed to examine customer relational capital, transaction cost, and loyalty with value co-creation in the Ghanaian hair-dressing business sector. Participants were 455 female hair-dressing customers (mean age = 2.56 years, SD = 1.07 years, age range 22 to... -
Social networking sites self-image antecedents of social networking site addiction
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joon-ho Kim --- , South Korea Seung-hye Jung --- , South Korea Jong-chang Ahn --- , South Korea Bo-seong Kim --- , South Korea Hyun-ju Choi --- , South KoreaThis study examined social network services (SNS) self-image and relationship influences on SNS addiction in a cross-national sample of adults (N = 444; South Africans = 214, Americans = 230; females = 49.3%) using survey data collected by the global... -
Measuring language usage in hospitality situations
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Leanne Schreurs --- , The NetherlandsIn this study, language usage in hospitality situations is measured. To this end, a corpus of utterances taken from a Colombian Spanish novel is quantitatively analysed. As a starting point of the analysis, it is illustrated that different modes of... -
Growth and metabolism of Clarias gariepinus (Burchell, 1822) fed with copepods (Eucyclops sp.) exposed to lead and titanium dioxide nanoparticles
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MM Matouke --- , Nigeria MK Mustapha --- , NigeriaThe increasing uses of lead (Pb2+) and titanium dioxide nanoparticles (nTiO2) in commercial products have led totheir increased discharge into aquatic environments. This study investigated the effects of the interaction betweennTiO2 and lead (Pb2+) in a simple freshwater food web... -
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... -
Influence of the soil on the spatial structure of forest species – preliminary results in a terra firme secondary forest plot, Amapá, Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ronaldo Oliveira dos Santos --- , Brazil Robson Borges de Lima --- , Brazil Rubiene Neto Soares --- , Brazil Bruno de Souza Dantas --- , Brazil Adriano Castro de Brito --- , Brazil Michelle Vasconcelos Cordeiro --- , Brazil Jadson Coelho de Abreu --- , Brazil Breno Marques da Silva e Silva --- , BrazilIn recent years there has been increasing interest in the relationships between edaphic factors in tropical forests due to the complexity and the dynamic nature of plant interactions with the physical environment. This research sought to investigate the correlation of... -
Age estimates of chokka squid Loligo reynaudii off South Africa and their use to test the effectiveness of a closed season for conserving this resource
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MR Lipiński --- , South Africa CH Mwanangombe --- , South Africa D Durholtz --- , South Africa D Yemane --- , South Africa J Githaiga-Mwicigi --- , South Africa WHH Sauer --- , South AfricaThis study presents age distributions in an exploited population of spawning chokka squid Loligo reynaudii together with their back-calculated spawning times, and considers the results in relation to the exploitation of this species. Samples were collected during two closed fishing... -
“Growing up and growing old with HIV”: HIV+ adolescents’ experiences of disclosing statuses to romantic partners in Bulawayo, Zimbabwe
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Philani Mlilo --- , Zimbabwe Cowen Dziva --- , Zimbabwe Vuyisile Precious Moyo --- , Zimbabwe Nonhlanhla Lindelwe Ndondo --- , South Africa Zanele Ndlovu --- , Zimbabwe Nkosinathi Muyambo --- , South AfricaThis article explores the experiences of HIV-positive adolescents disclosing their status to romantic partners in Bulawayo, Zimbabwe. Disclosure of HIV status continues to be one of the most pressing issues facing adolescents, especially those in relationships, yet health care workers... -
Assessment of genetic diversity in sorghum germplasm using agro-morphological traits
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Thulo Sejake --- , South Africa Nemera Shargie --- , South Africa Riann Christian --- , South Africa Toi Tsilo --- , South AfricaSorghum is one of the most important cereal crops grown in arid/semi-arid regions of the world. Despite its importance, sorghum production and productivity are constrained by the use of low yielding cultivars, which are susceptible to biotic and abiotic stresses... -
The role of strategic supplier relationships in enhancing supply chain innovation: A qualitative study in the South African automotive manufacturing industry
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Malente Modungwa --- , South Africa Melissa Rinke --- , South Africa Assilah Agigi --- , South Africa Kelvinne Mocke --- , South AfricaSupply chain innovation is a mechanism that firms use to ensure efficient supply chain management through collaboration with external supply chain partners. The interaction between buyers and suppliers is especially crucial in fostering innovation resulting in modifications, improvements and development... -
Women’s perspectives on relationship dynamics with their partners and their role in HIV acquisition, HIV disclosure, hormonal contraceptive uptake, and condom use
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: John C Chapola --- , Malawi Kendra Hatfield-Timajchy --- , USA Agatha K Bula --- , Malawi Stacey Hurst --- , USA Lameck Chinula --- , Malawi Athena P Kourtis --- , USA Jennifer H Tang --- , MalawiBackground: Limited information exists about relationship dynamics and their role in HIV acquisition, HIV disclosure, hormonal contraceptive uptake, and condom use among women in Malawi. -
International investor sentiment and stock returns: Evidence from China
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Li Zi-long --- , China Wang Su-sheng --- , China Hu Ming-zhu --- , ChinaWith the accelerated opening up of China’s financial sector, international investors have increasingly become a key investment group. To describe the international investor sentiment towards Chinese stock assets, we select sentiment proxies from the transaction data in the China A-share... -
College students’ well-being during the COVID-19 pandemic: An exploratory study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Irma Eloff --- , South AfricaThis study explored college student’s well-being priorities and capabilities during the COVID-19 pandemic. A total of 2 213 South African undergraduate students answered an open-ended question to elicit interpretive, reflective, analytic, and evaluative written response types on the factors that... -
Structure, growth and growing space efficiency of Pinus radiata (D. Don) trees as affected by their social position
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Hans Pretzsch --- , Germany Andreas Rais --- , Germany Deon Malherbe --- , South Africa Antonio Ruano --- , Spain Hugo Lambrechts --- , The Netherlands Enno Uhl --- , Germany Ben du Toit --- , South AfricaCurrently, silvicultural prescriptions such as thinning monospecific stands from above and transitioning from monospecific to mixed-species stands are scrutinised regarding their ability to reduce stress and damage. That the quantity and quality of the trees harvested by intermediate and final... -
Racial relations and life satisfaction among South Africans: Results from the 2017 South African Social Attitudes Survey (SASAS)
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Adekunle Adedeji --- , South Africa Erhabor S. Idemudia --- , South Africa Obasanjo Afolabi Bolarinwa --- , South Africa Franka Metzner --- , GermanyThe current study examined differences in race relations as a predictor of life satisfaction among South African adults. We analysed data from the South African Social Attitudes Survey 2017 (n = 3 135; female = 61%; black = 61% ,... -
The interplay between interpersonal relationships and organisational learning behaviour: Influences of psychological safety
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Emenike N. Anyaegbunam --- , Nigeria Izuchukwu L. G. Ndukaihe --- , Nigeria Onyinye A. Nwankwo --- , Nigeria Fabian O. Ugwu --- , NigeriaThis study examined the association between interpersonal relationships and organisation learning behaviour among new employees; as well as the influence of psychological safety on that relationship. Participants were 1 500 newly recruited university employees (females = 41.66%; mean age =... -
The waning of vision’s hegemony: A phenomenological perspective on mother-daughter discord in patriarchal societies
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Casper Lötter --- , South AfricaIf phenomenology is a research methodology uniquely positioned to enable us to learn from others, I aim to demonstrate the idea that cinema is a privileged site from which to investigate the notion of virtuality (sight and reality), even in... -
African phenomenology and ontological absolutism in politics: The complex postcolonial situation of Cameroon
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: John Sodiq Sanni --- , South AfricaIn an attempt to formulate an African phenomenological method, this article engages with existing African philosophical schools, namely particularism, universalism and eclecticism. I will explore how the positions advanced in these schools, valid in their own rights, are at the... -
Educational failure as a potential opening to real teaching – The case of teaching unaccompanied minors in Norway
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Wills Kalisha --- , Norway Tone Saevi --- , NorwayThis article explores the complexity of classroom interaction between teachers and unaccompanied teenagers seeking asylum in Norway. These teenagers find themselves within legal and political ‘grey areas’ where educational goals specific to their extreme situations are unavailable to them, and... -
Population parameters, exploitation rate and diet of black-chinned Tilapia, Sarotherodon melanotheron Rüppell, 1852 (Pisces: Cichlidae), from Badagry Creek, Lagos, Nigeria
Item type: Journal Article • Journal: African Zoology • Authors: Prince Emeka Ndimele --- , Nigeria Fatai Gbolahan Owodeinde --- , Nigeria Edwin Oritseweyinmi Clarke --- , Nigeria Olufemi Olusegun Whenu --- , Nigeria Olufemi Olabode Joseph --- , NigeriaThe black-chinned tilapia (Sarotherodon melanotheron) is a member of the cichlid family, which can be cultured to complement the output from a predominantly catfish aquaculture industry in Nigeria. In order to achieve this objective, it is important to study the... -
Reproductive biology of the lesser African threadfin Galeoides decadactylus in Gabon, Gulf of Guinea
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J-D Mbega --- , Gabon O Sadio --- , Senegal J-F Liwouwou --- , Gabon J-H Mvé Beh --- , Gabon I Bamba --- , Gabon A Eleng Spanian --- , Gabon M-L Yedi --- , Gabon F Cardiec --- , France F Le Loc’h --- , FranceThe lesser African threadfin Galeoides decadactylus (family Polynemidae) is one of the most captured marine fish species in Central Africa. This study examines aspects of the reproductive biology of G. decadactylus in the Libreville area of Gabon. Fish caught with... -
Sibling relationship qualities during the COVID-19 pandemic: A brief report of protective effect
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ting T. Zhang --- , China Xiao J. Cao --- , China Ya H. Liu --- , ChinaWe explored child sibling relationship qualities during the COVID-19 pandemic in a Chinese setting. Using a web-based survey, 154 parents reported on their kindergarten children’s (age range = 3 to 6 years) sibling relationships. The descriptive data and correlations analysis... -
Controlling the clock: Working hours in the UK hotel sector
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Annemarie Piso --- , UKThe hotel sector is synonymous with working hours that are long, unpredictable and result in poor outcomes for employees. Arguably, they constitute one of the most significant features of the employment relationship, yet little research exists to explore the factors... -
Variation of the relationships between lengths and weights applied to 123 fish species observed at Réunion Island (Indian Ocean)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Roos --- , Réunion J Taconet --- , Réunion C Gentil --- , Réunion B Brisset --- , Réunion H Evano --- , Réunion Y Aumond --- , Réunion J Huet --- , Réunion C Lepetit --- , Réunion R Boymond-Morales --- , Réunion T Rungassamy --- , Réunion R Elleboode --- , France K Mahé --- , FranceBody length–weight (L–W) relationships of 123 fish species (122 Actinopterygii and 1 Elasmobranchii) were studied from 10 218 individuals caught around Réunion Island from 2000 to 2021. All species, except for 4 with a very small number of individuals and... -
Electronic customer relationship management framework for Game Parks in Zimbabwe
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Theo Tsokota --- Midlands State University, Zimbabwe Gilbert Mahlangu --- Midlands State University, Zimbabwe Muchaneta Enipha Muruko --- MSc Information System Management Graduate Student at Midlands State University, Zimbabwe Colletor Tendeukai Chipfumbu Kangara --- Midlands State University, ZimbabweElectronic customer relationship management (e-CRM) is acknowledged today as an obligatory concept of customer relationship management in the world of services. However, there is a lack of any clear e-CRM framework for Game Parks in Zimbabwe. Consequently, this study’s primary... -
Density effect on growth variables of eucalypt clones in a Nelder wheel experiment
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Franciele Alba da Silva --- , Brazil Sylvio Péllico Netto --- , Brazil Alexandre Behling --- , Brazil Henrique Soares Koehler --- , Brazil Ataídes Marinheski Filho --- , Brazil Cláudio Cerqueira --- , BrazilNelder’s systematic design enables studies of tree plantation spacing in relatively small areas, which is of great interest for forest planning. However, dependence between observations can arise with this method, making it difficult to use classic statistics for evaluating an... -
Comparison of physico-chemical parameters with macroinvertebrate and vertebrate fauna of Lake Ogelube and Lake Ojii, Opi-Agu, south-eastern Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: IE Onah --- , OJ Ajanwachukwu --- , PO Ubachukwu --- ,The physico-chemical parameters of water provide crucial information on the condition of a waterbody at a point in time. Physico-chemical parameters determine the primary and secondary productivity of an aquatic ecosystem. Data on water temperature, pH, turbidity, water depth, total... -
On the Ramanujan-type congruences modulo 8 for the overpartitions into odd parts
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mircea Merca --- University of Craiova, RomaniaLet denote the number of overpartitions of n into odd parts. In this paper, we provide a complete characterization of Ramanujan-type congruences modulo 8 for the overpartition function considering the number of odd positive divisors of and the relations of... -
Exploring the process of harsh parenting on online aggressive behaviour: The mediating role of trait anger
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jingli Wu --- Xinxiang Vocational and Technical College, ChinaWe investigated the role of trait anger in the relationship between harsh parenting and online aggressive behaviour. Participants were 459 college students (female= 60.13%; mean age= 19.18 years, SD = 0.92 years). For the measures, the students completed the Harsh... -
Height growth strategies of Mimosa scabrella along a chronosequence
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Vinicius Costa Cysneiros --- Federal University of Paraná, Brazil Sebastião do Amaral Machado --- Federal University of Paraná, Brazil Allan Libanio Pelissari --- Federal University of Paraná, Brazil Edilson Urbano --- State University of Mato Grosso do Sul, Aquidauana University Unit, BrazilAssessing variations in tree allometry is useful for understanding height growth strategies in relation to life-history trajectories, light competition and environmental restrictions. Scaling exponent and asymptotic heights obtained from height–diameter (HD) models may elucidate how trees optimise growth strategies and... -
Appell-Carlitz numbers
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Su Hu --- South China University of Technology, China Min-Soo Kim --- Kyungnam University, Republic of KoreaIn this paper, we introduce the concept of the (higher order) Appell-Carlitz numbers which unifies the definitions of several special numbers in positive characteristic, such as the Bernoulli-Carlitz numbers and the Cauchy-Carlitz numbers. Their generating function is named Hurwitz series... -
Determinants of extramarital sex by men in Tanzania: A case study of Mbeya region
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Maurice CY Mbago --- Department of Statistics and Member of the Demographic Training Unit, University of Dar es Salaam, Tanzania Francis J Sichona --- Department of Statistics and Member of the Demographic Training Unit, University of Dar es Salaam, TanzaniaThis paper attempts to identify some factors associated with extramarital sex by men in the Mbeya region of Tanzania using data from a survey conducted in 2003/2004. The choice of Mbeya region was prompted by the fact that it has... -
LGBT Africa: A social justice movement emerges in the era of HIV
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Chris Beyrer [d151e18]LGBT communities are emerging across Africa in 2012. Many are emerging in the context of the continents severe HIV epidemic. Homophobia is a barrier to social acceptance and to health and other social services, but African communities are showing reliance... -
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... -
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... -
Relationship between socio-economic characteristics of older adults’ women and family planning use in Botswana
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Njoku Ola Ama --- Department of Statistics, University of Botswana, Botswana John O. Olaomi --- Department of Statistics, University of South Africa,Older adults (50 years and over) are still sexually active and therefore vulnerable to unplanned pregnancy, infection of STIs and HIV, yet there are no programmes in place to cater for their family planning needs. The objective of the study... -
Parent and peer attachment in bullying experiences among pre-adolescents
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Mariska Carter --- University of the Free State, South Africa Ronél van der Watt --- University of the Free State, South Africa Karel Esterhuyse --- University of the Free State, South AfricaThe study aimed to determine the mediating and/or moderating associations of perceived parent attachment and peer attachment dimensions (trust, communication, alienation) with bullying experiences (perpetration and/or victimisation). Data were collected from 465 Sesotho-speaking learners (10 – 12 years; female =... -
Relational importance in early and middle adulthood age groups in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Vicki Koen --- North-West University, South Africa Shingairai Chigeza --- University of Pretoria, South Africa Marié P Wissing --- North-West University, South AfricaWe explored the relational importance in early and middle adulthood in a South African setting. Informants were 52 participants (female = 58%, African language speaking = 31%, age range = 18–65; younger adults = 50%). Data on the types of... -
“Sex is sex, marriage is marriage”: infidelity amongst married women in Shamva, Zimbabwe
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Patience Chadambuka --- Midlands State University, Zimbabwe André Pelser --- University of the Free State, South Africa Victor Muzvidziwa --- Midlands State University, ZimbabweMany African societies adhere to a strong patriarchal norm as regards sexual relations, one that is unforgiving of female infidelity yet tolerates men’s extramarital affairs and even incorporates these into culture. This study reveals that, contrary to traditional assumptions defining... -
Therapeutic tool or a hindrance? A phenomenological investigation into the experiences of countertransference in the treatment of sexually abused children
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Tshepo Tlali --- University of Johannesburg,Since its inception in the 1900s, the concept of countertransference has been mired in controversy. Psychoanalytic literature is divided on its utility, significance and its clinical value in psychotherapy. While some psychotherapists have advocated for the importance of therapists’ expertise... -
Corporate social responsibility and employee knowledge sharing: The roles of organisational trust and exchange quality
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Si Qian --- Beijing Technology and Business University, China Ke Ma --- Beijing Technology and Business University, China Siqi Guo --- Beijing Technology and Business University, ChinaDrawing on the social exchange theory, this study aimed to examine the relationship between perceived corporate social responsibility (CSR) and employee knowledge-sharing behaviour, including the roles organisational trust and exchange quality play in that relationship. Survey data were collected from... -
Contributions of Africa to management and organization science
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Baniyelme D. Zoogah --- McMaster University, CanadaGiven the increasing globalization of management and organization science (MOS), it has been suggested that scholarly communities examine the contributions of their contexts to the discipline. Accordingly, the contributions from Africa to MOS across the pre-modern, modern, and post-modern eras... -
Peer relationships and aggressive behaviour in adolescents: Moderation by gender and mediation by media violence
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Izuchukwu L. G. Ndukaihe --- Alex Ekwueme Federal University, Nigeria Chiedozie O. Okafor --- Alex Ekwueme Federal University, Nigeria Uchechukwu L. Okeowata --- Alex Ekwueme Federal University, Nigeria Hillary O. Eze --- Alex Ekwueme Federal University, Nigeria Emmanuel O. Agha --- Alex Ekwueme Federal University, Nigeria Peter Offu --- Alex Ekwueme Federal University, NigeriaWe investigated the role of gender and media violence in adolescents’ peer relationship problems and aggressive behaviour. High school students (n = 144) from South-Eastern Nigeria participated in the study. Seventy-two completed an experiment in which they were exposed to... -
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... -
Evaluation innovation in Africa: Towards indigenously responsive evaluation (IRE) philosophies, methods and practices in Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Evans Sakyi Boadu --- University Environment and Sustainable Development (UESD), PMB Somanya, Ghana Isioma Ile --- University of the Western Cape, South AfricaEvaluation within an indigenous society is a social activity. Thus, it requires both tangible and intangible or hidden factors such as cultural values, norms, communal relational structures, power dynamics, attitudes, consensus-building, community aspirations, empowerment and other practical knowledge to develop... -
Argument mining from Amharic argumentative texts using machine learning approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mikru Lake Melie --- Jimma University, Jimma Institute of Technology, Ethiopia Debela Tesfaye --- Jimma University, Jimma Institute of Technology, Ethiopia Alemu Kumilachew Tegegnie --- Bahir Dar University, Bahir Dar Institute of Technology, Ethiopia Derejaw Lake Melie --- Bahir Dar University, Bahir Dar Institute of Technology, EthiopiaArgument mining is an emerging science that deals with the automatic identification and extraction of arguments along with their relation from large, unstructured data that are useful for reasoning engines and computational models. Identification and extraction of argument relation from... -
Parental marital quality and adolescents’ online social addiction: Influences of adolescents’ interpersonal sensitivity and peer relationships
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: --- Zhongyuan University of Technology, China --- Xuchang University, ChinaThis study explored interpersonal sensitivity and peer relationships as mechanisms in the parental marital quality and adolescents’ online social addiction. Participants were 914 Chinese middle school students (females = 53.39%; mean age = 13.95, SD = 1.89 years). They 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... -
Parental attachment and subjective well-being in vocational college students: mediating roles for resilience and self-esteem
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Shuwei Hao --- School of Health Humanities, Peking University, China Honghong Xu --- School of Health Humanities, Peking University, ChinaThis study examined the mediating role of resilience and self-esteem in the relationship between parental attachment and subjective well-being of young adults. Utilising a cross-sectional design, the study sampled 964 students from five higher vocational colleges in Beijing (female =... -
Level of food safety knowledge among hospitality professionals: an empirical investigation from India
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Patita Paban Mohanty --- Siksha’ O’ Anusandhan University, India Sunil Tiwari --- School of Business Studies, Central University of Kerala, India Hiran Roy --- International School of Hospitality and Tourism Management, Fairleigh Dickinson University, Canada Rupesh Bhavsar --- Institute of Hotel Management, MGM University, IndiaHospitality professionals with insufficient food safety knowledge (FSK) poses a major risk to food safety in their respective organisations. This study aims to investigate the level of food safety knowledge of hospitality professionals, as well as the attributes influencing food... -
The making, unmaking and adaptation of Mayeyi multispecies entanglements within the Kwando-Linyanti wetlands: eighteenth century to 1990
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jessica-Jane Lavelle --- University of Cape Town, South AfricaThe Kwando-Linyanti wetlands of Namibia are known for their rivers, floodplains and woodlands with abundant wildlife and a diversity of birds and fish. Within these landscapes reside the Mayeyi, a Bantu-speaking people whose culture is closely entangled with the wetlands... -
“We have that connection, we have love; we take wildlife as gifts from our ancestors”: relations between antelopes and Khwe in Namibia’s Bwabwata National Park
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Romie Nghitevelekwa --- University of Namibia, Namibia Selma Lendelvo --- University of Namibia, Namibia Fenny Ndapewa Nakanyete --- University of Namibia, Namibia Kletus Likuwa --- Social Sciences Division, University of Namibia, Namibia Kenneth Matengu --- University of Namibia, Namibia David Mushavanga --- , NamibiaWildlife plays significant roles in many societies that go beyond its ecological importance and economic rationale associated with conservation. This article examines the meanings of antelopes for the Khwe people in Bwabwata National Park in north-eastern Namibia. It underlines the... -
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... -
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... -
Genetic control of Fusarium circinatum tolerance in Pinus patula × P. tecunumanii hybrid families
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Lebogang Mphahlele --- , South Africa André Nel --- , South AfricaThe pine pitch canker fungus, Fusarium circinatum, has caused large-scale mortality of Pinus patula crops in South African nurseries and high in-field post-planting mortality. Tree breeders have identified selection and breeding of tolerant material as the likely long-term solution to... -
A rapid fishery assessment to collect biological information and life-history parameters for rednose labeo Labeo rosae and Mozambique tilapia Oreochromis mossambicus in Loskop Dam, Olifants River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HA Hlungwani --- University of Limpopo, South Africa SM Marr --- University of Limpopo, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa AC Hoffman --- , South Africa H Botha --- University of Limpopo, South Africa JR Sara --- University of Limpopo, South AfricaA 2-week rapid fishery assessment using various sampling gears was conducted to collect life-history data on rednose labeo Labeo rosae and Mozambique tilapia Oreochromis mossambicus in Loskop Dam on the Olifants River, Mpumalanga Province, South Africa. These native species were... -
Phenotypic variation and association of agronomic traits in tepary bean genotypes under drought-stress and non-stress conditions
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Saul Eric Mwale --- School of Agricultural, Earth and Environmental Sciences, African Centre for Crop Improvement (ACCI), University of KwaZulu-Natal, South Africa Hussein Shimelis --- School of Agricultural, Earth and Environmental Sciences, African Centre for Crop Improvement (ACCI), University of KwaZulu-Natal, South Africa Wilson Nkhata --- School of Agricultural, Earth and Environmental Sciences, African Centre for Crop Improvement (ACCI), University of KwaZulu-Natal, South Africa Abel Sefasi --- Lilongwe University of Agriculture and Natural Resources, Malawi Isaac Fandika --- Kasinthula Agricultural Research Station, Malawi Jacob Mashilo --- School of Agricultural, Earth and Environmental Sciences, African Centre for Crop Improvement (ACCI), University of KwaZulu-Natal, South AfricaGenetic variation for economic traits associated with drought adaptation is a prerequisite for developing climate-smart crop varieties, including tepary bean (Phaseolus acutifolius A. Gray). This study aimed to assess the magnitude of genetic variation and the relationship of agronomic traits... -
China–Africa relationships: A systematic literature review and future directions
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Max C. Dike --- Leicester Castle Business School De Montfort University, UK Richard A. Owusu --- Linnaeus University School of Business, SwedenThe deepening engagements of China in Africa in the past three decades have recently led to an increase in academic interest in exploring China–Africa relationships. This paper presents a systematic review of the extant literature on China–Africa ties published during... -
A multiscale analysis of returns and volatility spillovers in cryptocurrency markets: A post-COVID perspective
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Andrew Phiri --- Nelson Mandela University, South Africa Izunna Anyikwa --- Nelson Mandela University, South AfricaSince the onset of the COVID-19 pandemic, leading cryptocurrencies have undergone significant price fluctuations, prompting widespread interest in the interdependence and spillover effects among cryptocurrency markets, as well as in identifying the key cryptocurrencies that drive market movements. This study... -
Physical exercise and aggressive behaviour among rural children: Cognitive flexibility mediation and peer relationship quality moderation
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Kequn Chu --- Guangxi Science & Technology Normal University, China Jingyuan Cui --- Guangxi Science & Technology Normal University, ChinaWe explored the relationship between physical exercise and aggressive behaviour among rural children and the mediating role of cognitive flexibility and the moderating role of peer relationship quality in that relationship. Upper-grade primary school students (n = 873, mean age... -
Nonlinear maps preserving asymptotic equivalence on B(X)
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Zijie Qin --- Changshu Institute of Technology, P.R. ChinaLet X be an infinite-dimensional complex Banach space. By B(X) we denote the algebra of all bounded linear operators on X. It is shown that if Φ : B(X) → B(X) is a surjective map satisfying A + B is... -
Mixed-effect modelling of Tectona grandis L.f. yield at stand-level
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Lucas Araujo Moura --- Federal University of Paraná, Brazil Allan Libanio Pelissari --- Federal University of Paraná, Brazil Luan Demarco Fiorentin --- Federal University of Paraná, Brazil Vinicius Costa Cysneiros --- Federal University of Santa Catarina, Brazil Luciano Rodrigo Lanssanova --- Federal Institute of Science, Technology and Education of Mato Grosso, Brazil Sidney Fernando Caldeira --- Federal University of Mato Grosso, BrazilThe prediction of volume from commercial plantations is essential to manage Tectona grandis L.f. stands. However, the assumptions of regression, especially homoscedasticity and residual independence, are often ignored when fitting longitudinal regression models. Thus, this work aimed to build a... -
Long-term temporal patterns of human-carnivore conflict in the Chobe Enclave, northern Botswana
Item type: Journal Article • Journal: African Zoology • Authors: Gosiame Neo-Mahupeleng --- Botswana University of Agriculture and Natural Resources, Botswana Richard Fynn --- Okavango Research Institute, University of Botswana, Botswana Moseki Ronald Motsholapheko --- Okavango Research Institute, University of Botswana, Botswana Matshelo Makondo --- , Botswana Kaelo Nkile --- , Botswana Reneilwe Dipheko --- , Botswana Graham IH Kerley --- Centre for African Conservation Ecology, Nelson Mandela University, South AfricaIn some areas, human and carnivore livelihoods overlap causing human-carnivore conflict (HCC), hence there is a need for carnivore conservation efforts. The decline of most large carnivore populations are linked to HCC, primarily due to the killing of carnivores by... -
Height–diameter allometric models for commercial species in the south-western region of the Brazilian Amazon
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Lucas Dalmolin Ciarnoschi --- Federal University of Paraná, Brazil Sylvio Péllico Netto --- Federal University of Paraná, Brazil Allan Libanio Pelissari --- Federal University of Paraná, Brazil Marcus Vinicio Neves d’Oliveira --- , Brazil Alexandre Behling --- Federal University of Paraná, Brazil Claiton Nardini --- Federal University of Paraná, Brazil João Paulo Sardo Madi --- Federal University of Paraná, BrazilAccurate total height estimates in Brazilian Amazon forests are still scarce. This study aimed to (1) evaluate a method for stratifying data by potential height (quasi-asymptotic heights) to group the species; (2) fit a regression model using potential heights (quasi-asymptotic... -
Spillovers, correlations and hedging among green bonds, clean energy stocks and fossil fuels: The effects of four turmoils
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Foday Joof --- Eastern Mediterranean University, Turkey Cahit Adaoglu --- Eastern Mediterranean University, Turkey Nigar Taspinar --- Eastern Mediterranean University, TurkeyThis study investigates the volatility spillovers and the hedging among green bonds, clean energy stocks, and fossil fuels markets. During the ten-year sample period between 2012 and 2022, four major turmoils are observed chronologically: The oil price plunge of 2014–2016,... -
Growth patterns and condition index of rock oysters Saccostrea cucullata in relation to river influence in southeastern Madagascar
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Masimana --- Institut d’Enseignement Supérieur d’Anôsy, Université de Toliara, Madagascar A Andrisoa --- Aix-Marseille University, CNRS, IRD, INRAE, CEREGE, FranceSaccostrea cucullata is the dominant species of rock oyster (family Ostreidae) in southeastern Madagascar. Despite its economic and ecological importance, information on its biology and ecology is scarce. This study investigated the growth, shell length–weight relationship, and condition index (tissue...
