Search
Search results for
We found
38 results for you
-
Validating Measures of Psychological Well-being by Contrasting Samples Employed in Hazardous and Less Hazardous Work
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Deo J. W. Strümpfer --- University of Johannesburg, South Africa Riëtte J. Eiselen --- University of Johannesburg, South Africa Deon Meiring --- University of Pretoria, Jack S. Phalatse --- SASOL Mining,The study investigated whether differences between contrasting groups reflect significant differences in psychological well-being scores. Membership of hazardous vs. less hazardous occupations in the same profession served as proxy measures of well-being. Antonovsky's Sense of Coherence (SOC), Block & Kremen's... -
A note on * μ -rings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H. France-Jackson H.J. Le RouxWe introduce and investigate the concept of * μ -rings which is a generalization of *-rings defined and studied in [4], [5], [6], [7] and [10]. This lets us generalize many important results valid for *-rings and obtain a useful... -
The Approximation of Compacta by Finite T0-Spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: RalphD. Kopperman VladimirV. TkachukIt has long been known that compact Hausdorff spaces can be approximated using finite T 0-spaces, and that many can be represented as inverse limits of polyhedra. Here we study the relationship between these two types of representation. In Section... -
On Polynomial and Multiplicative Radicals
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: S. Tumurbat R. WiegandtWe show that polynomial and multiplicative radicals in [1] are special cases of radicals defined by means of elements. We scrutinize the way of defining a radical γG by a subset G of polynomials in noncommuting indeterminates. Defining polynomial radicals,... -
On rings generating supernilpotent and special atoms
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H. France-Jackson N.J. GroenewaldWe study prime rings which generate supernilpotent (respectively special) atoms, that is, atoms of the lattice of all supernilpotent (respectively special) radicals. A prime ring A is called a **-ring if the smallest special class containing A is closed under... -
Relationship between water temperature predictability and aquatic macroinvertebrate assemblages in two South African streams
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BR Eady --- Discipline of Geography, School of Agricultural, Earth and Environmental Sciences, South Africa NA Rivers-Moore --- Centre for Water Resources Research, South Africa TR Hill --- Discipline of Geography, School of Agricultural, Earth and Environmental Sciences, South AfricaVariable seasonal stream temperatures are a critical factor in maintaining aquatic invertebrate community patterns. We investigated whether the degree of predictability in a stream's water temperature profile provides insights into the structure and functional predictability of macroinvertebrate communities. Quarterly macroinvertebrate... -
Designs from the groups PSL2(q) for certain q
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: M.R. Darafsheh --- School of Mathematics, College of Science, Iran A. Iranmanesh --- Department of Mathematics, Faculty of Basic Sciences, Iran R. Kahkeshani --- Department of Mathematics, Faculty of Basic Sciences, IranUsing primitive actions of the projective special linear groups PSL2(q), q = 37, 41, 43, 47 and 49 some 1-designs are constructed. The automorphism group of all the constructed designs are found. It is shown that all subgroups of the... -
Family medicine, primary health care and HIV medicine—a ‘new’ clinical speciality and its role in the South African HIV pandemic
Item type: Journal Article • Journal: South African Family Practice • Authors: DT Hagemeister --- Drakenstein subdistrict, Western Cape and Division for Family Medicine and Primary Care,Context: Because of the extent of the HIV pandemic, but also due to some specific historical conditions, HIV medicine has evolved as a field of its own in South African medicine. With the massive scale of the roll-out of antiretroviral... -
The confounding influence of urban informality on innovation and production specialisation in production clusters: evidence from Nairobi
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: John C. Harris --- Division of Regional and City Planning, College of Architecture, USAThis paper investigates two agglomeration economies, innovation and production specialisation, within Nairobi's handicraft sector. The paper asks if and by what mechanics urban informality might interfere with these important potential outcomes of clustered production. A hundred and two semi-structured interviews... -
Patterns of millipede (Diplopoda), centipede (Chilopoda) and scorpion (Scorpionida) diversity in savanna habitats within the Greater Makalali Conservancy, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Dave Druce --- University of KwaZulu-Natal, South Africa Michelle Hamer --- University of KwaZulu-Natal, South Africa Rob Slotow --- University of KwaZulu-Natal, South AfricaAlthough savanna is one of the most important biomes in southern Africa, it is, apart from the botanical component, one of the least studied. This study aimed to document the distribution patterns, richness and diversity of selected ground-dwelling, flightless arthropods... -
Factors influencing the choice of anaesthesia as a field of specialty in University of Ghana School of Medicine and Dentistry, Korle-Bu Teaching Hospital
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Mubarak Abdul-Rahman --- Department of Pathology, Ghana George Aryee --- Department of Anaesthesia, Ghana Raymond Essuman --- Department of Anaesthesia, Ghana Robert Djagbletey --- Department of Anaesthesia, Ghana Eugenia Lamptey --- Department of Anaesthesia, Ghana Christian Owoo --- Department of Anaesthesia, Ghana Frank Boni --- Department of Anaesthesia, GhanaBackground: Specialisation is perceived as essential for success, and affects the availability and distribution of medical personnel and the quality of service the health system is able to deliver. In Ghana, some areas of medical specialties have a relatively good... -
Specialist physician-led public sector health services in rural KwaZulu-Natal: positive signs
Item type: Journal Article • Journal: South African Family Practice • Authors: Poobalan Naidoo --- Boehringer-Ingelheim, South Africa Diana Pillay --- Department of Internal Medicine, South Africa Selvarajah Saman --- Department of Internal Medicine, South AfricaMedical practice in public sector rural areas in South Africa has many challenges. This paper demonstrates the benefits of having specialist led medical services in rural medical facilities. -
Advanced training in child psychology: Key elements in offering a Doctor of Psychology (DPsych) programme in South Africa
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ronél van der Watt --- Department of Psychology, South Africa Carla Sharp --- Developmental Psychopathology Lab, Clinical Psychology, USAThe aim of this article is to propose some benchmarks for a Doctor of Psychology (DPsych) in advanced training in Child Psychology in South Africa, and to highlight key elements in offering such a programme. In doing so, we use... -
Is the Black Harrier Circus maurus a specialist predator? Assessing the diet of a threatened raptor species endemic to southern Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Marie-Sophie Garcia-Heras --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa François Mougeot --- Instituto de Investigación en Recursos Cinegéticos (IREC), Spain Beatriz Arroyo --- Instituto de Investigación en Recursos Cinegéticos (IREC), Spain Graham Avery --- Iziko South African Museum, South Africa Margaret Avery --- Iziko South African Museum, South Africa Robert E Simmons --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South AfricaStudying the diet of wild animals is central for understanding their flexibility in food requirements. The Black Harrier Circus maurus is an endangered raptor in South Africa and Namibia. To date, information about the diet of the species is insufficient... -
Section 12M contributions in terms of the Income Tax Act No. 58 of 1962: Normal tax implications for the retired employee
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: E van Wyk --- School of Accountancy, Faculty of Economic and Management Sciences, M Terblanche --- Ducharme Consulting, South AfricaSection 12M of the Income Tax Act No. 58 of 1962 allows a normal tax deduction for employers who pay the post-retirement medical contributions by way of lump sum payments on behalf of retired employees. Although a full deduction is... -
Engineering research profile of countries in the African Union
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Swapan Kumar Patra --- Business School, Tshwane University of Technology, South Africa Mammo Muchie --- DST/NRF SARChI Professor, South AfricaScholarly publication output of engineering research from the member countries of the African Union (AU) are mapped using scholarly publication data from the Scopus® database of Elsevier. The countries are ranked based on various parameters, for example; number of publications,... -
Awareness of family medicine discipline among clinical medical students of Bayero University, Kano, Nigeria
Item type: Journal Article • Journal: South African Family Practice • Authors: Tanko Salihu Tanimu --- Department of Family Medicine, Kano Godpower Chinedu Michael --- Department of Family Medicine, Kano Aliyu Ibrahim --- Department of Paediatrics, Kano Bukar Alhaji Grema --- Department of Family Medicine, Kano Abubakar Abiso Mohammed --- Department of Family Medicine, KanoIntroduction: Undergraduate medical education requires the studying of a wide range of medical specialties to produce the future workforce of the healthcare system. Family medicine (FM), a relatively new specialty in Nigeria, aims at supplying doctors capable of providing comprehensive... -
Undergraduate medical students’ interest in specialising in Family Medicine at the University of the Free State, 2014
Item type: Journal Article • Journal: South African Family Practice • Authors: DT Hagemeister --- Faculty of Health Sciences, South Africa A Pal --- Faculty of Health Sciences, South Africa N Naidoo --- Faculty of Health Sciences, South Africa U Kristen --- Faculty of Health Sciences, South Africa N Mokgosana --- Faculty of Health Sciences, South Africa G Joubert --- Faculty of Health Sciences, Department of Biostatistics, South AfricaBackground: There is a large demand for Family Medicine specialists, yet not enough medical students specialise in this field. This study investigated the interest of undergraduate medical students at the University of the Free State in pursuing a career in... -
Science, technology and innovation in BRICS countries: Introduction to the special issue
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Swapan Kumar Patra --- Business School, South Africa Mammo Muchie --- 2DST/NRF SARChI Professor, South AfricaThe BRICS (Brazil, Russia, India, China and South Africa) economies have been the subject of many scholarly studies in recent years, as well as featuring in the popular media. This special issue of the African Journal of Science, Technology, Innovation... -
Avian guild assemblages in forest fragments around Budongo Forest Reserve, western Uganda
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Moreen Uwimbabazi --- Department of Forest Biology and Ecosystems Management, Uganda Amy E Eycott --- Institute of Biology, Norway Fred Babweteera --- Royal Zoological Society of Scotland, UK Eric Sande --- Department of Biological Sciences, Uganda Richard J Telford --- Institute of Biology, Norway Vigdis Vandvik --- Institute of Biology, NorwayRemnant forest fragments provide an opportunity for conservation in fragmented landscapes but some patches are more useful than others. Forest fragments around Budongo Forest Reserve, an Important Bird Area in western Uganda, were surveyed to explore the effects of different... -
Diet and feeding in the Cape Cobra, Naja nivea
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Inshaaf Layloo --- , , South Africa Caitlin Smith --- , , South Africa Bryan Maritz --- , , South AfricaIt is widely reported that African cobras (genus Naja) are generalist predators, but examination of formal literature yields relatively little evidence of this for most species. Here, we review the diet of cape cobras (Naja nivea) based on examination of... -
Knowledge of final-year medical students at the University of KwaZulu-Natal about family medicine, and long-term career choices
Item type: Journal Article • Journal: South African Family Practice • Authors: R Omed Ali --- Department of Family Medicine, South Africa AJ Ross --- Department of Family Medicine, South Africa TC Nkabinde --- Department of Family Medicine, South AfricaBackground: While international experience suggests that well-trained primary care physicians improve the quality and cost effectiveness of health care, family medicine (FM) as the discipline of the specialist primary care physician appears to not be an attractive career for medical... -
Spatial and temporal variation in the use of supplementary food in an obligate termite specialist, the bat-eared fox
Item type: Journal Article • Journal: African Zoology • Authors: Keafon R Jumbam --- Department of Zoology and Entomology, South Africa Stéphanie Périquet --- Department of Zoology and Entomology, South Africa Fredrik Dalerum --- Research Unit of Biodiversity, Spain Aliza le Roux --- Department of Zoology and Entomology, South AfricaThe bat-eared fox (Otocyon megalotis) is considered a termite specialist. However, studies of its diet have been limited to indirect methods, such as scat and stomach content analyses, resulting in intraspecific dietary variations due in part to methodological differences. Because... -
A systematic review of the literature on the specialty preferences of Nigerian medical graduates: disparity between the literature and reality
Item type: Journal Article • Journal: South African Family Practice • Authors: OS Ojo --- Family Medicine Department, Nigeria AO Egunjobi --- Family Medicine Department, Nigeria AJ Fatusin --- Family Medicine Department, Nigeria BO Fatusin --- Family Medicine Department, Nigeria AJ Adeyemo --- Family Medicine Department, NigeriaBackground: The Nigerian literature on the preference for specialties under the West African College of Physicians (WACP) among medical graduates reported a preference for core specialties (Internal Medicine and Paediatrics). This finding is at variance with the number of certified... -
The influence of host dispersal on the gene flow and genetic diversity of generalist and specialist ectoparasites
Item type: Journal Article • Journal: African Zoology • Authors: Conrad A Matthee --- , South AfricaThe dispersal and subsequent gene flow within parasite species is the result of a complex interaction between parasite life history, host life history and abiotic environmental factors. To gain more insights into the drivers responsible for parasite dispersal, COI mtDNA... -
Making a difference and earning a living: Healthcare professionals’ perspectives on working with persons with special healthcare needs
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Victoria Cutts --- , South Africa Henry D. Mason --- , South Africa Vikki Botes --- , South AfricaThis qualitative study explored six (female = 5) healthcare professionals’ motivation to work with persons with special healthcare needs. Thematic analysis revealed three themes; namely making a difference in people’s lives, personal life stories, and extrinsic motivation. The findings suggest... -
Testing assertions of dietary specialisation: a case study of the diet of Aparallactus capensis
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Bryan Maritz --- University of the Western Cape, South Africa Aadam Rawoot --- University of the Western Cape, South Africa Ryan van Huyssteen --- University of the Western Cape, South AfricaThe lack of detailed natural history information required to precisely characterise the diets of many organisms often results in the use of generalised descriptions of those diets. These descriptions can become dogmatic, and should be challenged with novel observational data... -
Personality traits and occupational stress among special needs education teachers
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Olufemi Timothy Adigun --- , South Africa Mandla Morris Hlongwane --- , South Africa Olugbenga Ojo Isaiah --- , NigeriaWe assessed the association between personality traits, sex, and occupational stress among special needs education teachers. A total of 472 special needs education teachers from Southwest Nigeria were participants (female = 39.2%; age range 23 to 58 years, special education... -
Smart specialisation strategies in sub-Saharan Africa: Opportunities, challenges and initial mapping for Côte d’Ivoire
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mafini Dosso --- , Spain Alexander Kleibrink --- , Spain Monika Matusiak --- , SpainThis paper calls for a better integration of place-based, evidence-based and inclusive dimensions in the implementation of the Science, Technology and Innovation (STI) plans and industrial policies in sub-Saharan Africa. To this end, the analysis contrasts with and takes inspiration... -
Namaqua Dwarf Adders are generalist predators
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Bryan Maritz --- , , USA Graham J. Alexander --- , , South AfricaPrey items vary greatly in the total amount of energy they provide and the costs associated with their location, capture, consumption and assimilation. As a result not all prey types are of equal value, and the relative frequency with which... -
What is the motivation? The political economy of engineers regulation in Kenya
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: O. A. K’Akumu --- University of Nairobi, KenyaRegulation is usually justified by the public interest in theory but in practice may end up serving special interests. This paper evaluates the regulatory frameworks for engineers and engineering technologists in Kenya with the view to establishing whether they take... -
Universal specialization semilattices
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Paolo Lipparini --- Università di Roma “Tor Vergata”, ItalyA specialization semilattice is a structure which can be embedded into , where X is a topological space, x ⊑ y means x ⊆ Ky, for x, y ⊆ X, and K is closure in X. Specialization semilattices and posets... -
A solution to a nonlinear Fredholm integro-differential equation
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Anar T. Assanova --- Institute of Mathematics and Mathematical Modeling MES RK, Kazakhstan Sayakhat G. Karakenova --- Institute of Mathematics and Mathematical Modeling MES RK, Kazakhstan Sandugash T. Mynbayeva --- Institute of Mathematics and Mathematical Modeling MES RK, Kazakhstan Rosa E. Uteshova --- Institute of Mathematics and Mathematical Modeling MES RK, KazakhstanThis paper deals with a Fredholm integro-differential equation with nonlinear integral term. By using the Dzhumabaev parametrization method, we reduce the equation to a special Cauchy problem and establish sufficient conditions for the existence of its unique solution. The solution... -
The impact of Eucalyptus plantations on herpetofaunal diversity, Maputo National Park, Mozambique
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: PR Jordaan --- Tshwane University of Technology, South Africa A Wilken --- University of Pretoria, South Africa X Combrink --- Tshwane University of Technology, South AfricaExotic afforestation has proven detrimental to biodiversity in general, however only a few studies documenting the impact of timber plantations on herpetofaunal diversity have been published within a southern African context. To determine if variations in herpetofaunal species assemblages could... -
Exploratory characterisation of recreational fishing for skipjack tuna Katsuwonus pelamis and eastern little tuna Euthynnus affinis in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Viana --- University of Cape Town, South Africa MW Farthing --- Rhodes University, South Africa C Bova --- Rhodes University, South Africa O Marcone --- , United Kingdom WHH Sauer --- Rhodes University, South AfricaDespite being important to artisanal and industrial fisheries, little is known about the role of skipjack tuna Katsuwonus pelamis and the eastern little tuna (or kawakawa) Euthynnus affinis in recreational fisheries. This study used a banner-recruited, online questionnaire of recreational... -
Combinatorial approaches to the unit groups of Clifford algebras, I
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bokhee Im --- Chonnam National University, Republic of Korea Jonathan D.H. Smith --- Iowa State University, U.S.A.This is the first part of a two-part paper introducing the application of Latin square and quasigroup techniques within a combinatorial approach to the unit groups of Clifford algebras. The two fundamental tools employed are a theorem showing that each... -
Combinatorial approaches to the unit groups of Clifford algebras, II
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bokhee Im --- Chonnam National University, Republic of Korea Jonathan D.H. Smith --- Iowa State University, U.S.A.This is the second part of a two-part paper intended to introduce the use of Latin square and quasigroup techniques in a combinatorial approach to the unit groups of Clifford algebras. The aim of this part is to apply the... -
A characterization of some finite quasisimple groups using their character codegrees
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Lehlogonolo S. Mabena --- University of Pretoria, South Africa Sesuai Y. Madanha --- University of Pretoria, South Africa Bernardo G. Rodrigues --- University of Pretoria, South AfricaLet G be a finite group. For an irreducible character χ of G, define its codegree by cod(χ) = |G : ker χ|/χ(1). Furthermore, define cod(G) = {cod(χ) : χ ∈ Irr(G)}. A recent conjecture of Hung and Moretó states...