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A field method to determine three dimensional infiltrability of vineyard soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.A. Myburgh --- , South Africa C.L. Howell --- , South Africa D. Brink --- , South AfricaA method is described to measure water intake from a small, shallow pond in which a 5 mm constant water head is maintained. Since water is supplied to the soil at near atmospheric pressure, infiltrability rather than infiltration rate is... -
Socio-economic transitions influence vegetation change in the communal rangelands of the South African lowveld
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: W C TwineThe importance of the human dimensions of vegetation change in rangelands is increasingly being acknowledged. However, surprisingly little research is directed at advancing our understanding of the relationships between socio-economic factors and state of the vegetation in these systems. There... -
A novel method for estimating tree dimensions and calculating canopy volume using digital photography
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: AS Barrett --- Applied Behavioural Ecology and Ecosystems Research Unit, South Africa LR Brown --- Applied Behavioural Ecology and Ecosystems Research Unit, South AfricaStudies on plant phenology and browse capacity require effective methods to rapidly quantify plant dimensions such as tree height, height of maximum canopy diameter, height of first leaves, maximum canopy diameter, and diameter of trunk(s) at height of first leaves... -
The Meaning of Emotion in the White Afrikaans Language Group: A Componential Emotion Theory Approach
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Cara Jonker --- North-West University, Potchefstroom Campus, South Africa Althea van der Merwe --- North-West University, Potchefstroom Campus, South Africa Johnny Fontaine --- Gent University, Belgium Deon Meiring --- University of Pretoria, South AfricaThis study determined the meaning of emotion in a sample of white Afrikaans-speaking adults (n=120; males =32, females=88, age range =18–48+ years). Data were collected using the Meaning Grid (Scherer, 2005). The analysis examined the factor loadings of emotion words... -
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 the metric dimension of generalized Petersen graphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Shabbir Ahmad --- Centre for advanced studies in Pure and Applied Mathematics, Pakistan Muhammad Anwar Chaudhry --- Centre for advanced studies in Pure and Applied Mathematics, Pakistan Imran Javaid --- Centre for advanced studies in Pure and Applied Mathematics, Pakistan Muhammad Salman --- Centre for advanced studies in Pure and Applied Mathematics, PakistanA family G of connected graphs is said to be a family with constant metric dimension if its metric dimension is finite and does not depend upon the choice of G in G. In this paper, we study the metric... -
Perceptions of HIV, AIDS and tuberculosis among patients on antiretroviral therapy in Bulawayo, Zimbabwe: implications for the provision of HIV and TB care services
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Alexander Rödlach --- Department of Sociology, Anthropology and Social Work, United States RiittaA Dlodlo --- , France ZaneleE Hwalima --- Health Services Department, ZimbabweThe objectives of the research were to explore perceptions of HIV, AIDS and tuberculosis (TB) among individuals enrolled in antiretroviral therapy (ART) at two municipal clinics in Bulawayo, Zimbabwe, and to assess the implications of these perceptions on the provision... -
Shallow waters: social science research in South Africa's marine environment
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Sowman --- Environmental Evaluation Unit, Department of Environmental & Geographical Science, South Africa D Scott --- School of Built Environment and Development Studies, Howard College Campus, South Africa L J F Green --- Department of Social Anthropology, South Africa M M Hara --- Institute for Poverty, Land and Agrarian Studies, South Africa M Hauck --- Environmental Evaluation Unit, Department of Environmental & Geographical Science, South Africa K Kirsten --- Department of Environmental and Geographical Science, South Africa B Paterson --- Marine Research Institute, South Africa S Raemaekers --- Environmental Evaluation Unit, Department of Environmental & Geographical Science, South Africa K Jones --- Environmental Evaluation Unit, Department of Environmental & Geographical Science, South Africa J Sunde --- Environmental Evaluation Unit, Department of Environmental & Geographical Science, South Africa J K Turpie --- Anchor Environmental, South AfricaThis paper provides an overview of social science research in the marine environment of South Africa for the period 1994–2012. A bibliography based on a review of relevant literature and social science projects funded under the SEAChange programme of the... -
Profit smoothing in industrial companies listed on the Johannesburg Stock Exchange
Item type: Journal Article • Journal: De Ratione • Authors: K E Prinsloo --- Department of Accounting, S D Ramsay-Slogrove --- Department of Accounting, J E Rowlands --- Department of Accounting,This study evaluated the extent to which profit smoothing is practised in the industrial sector of the Johannesburg Stock Exchange (JSE), identified the smoothing dimensions most likely to be used and evaluated the impact of ex ante profit patterns on... -
The mitochondrial cytochrome c oxidase I gene reveals phylogeographic structure in the African Goshawk Accipiter tachiro (Accipitridae)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kurt Jordaens --- Joint Experimental Molecular Unit, Belgium Floris C Breman --- Joint Experimental Molecular Unit, Belgium Gontran Sonet --- Joint Experimental Molecular Unit, Belgium Zoltán T Nagy --- Joint Experimental Molecular Unit, Belgium Michel Louette --- Vertebrates Section, BelgiumWe used a 298 bp fragment of the mitochondrial cytochrome c oxidase subunit I gene (COI) to examine sequence variation in (mostly) museum specimens of the African Goshawk Accipiter tachiro. Our results showed two clades with high bootstrap support in a... -
How relevant are Hofstede’s dimensions for inter-cultural studies? A replication of Hofstede’s research among current international business students
Item type: Journal Article • Journal: • Authors: Klaes Eringa --- Stenden Hotel Management School, Stenden University of Applied Sciences, Leeuwarden, The Netherlands Laura N. Caudron --- Stenden Hotel Management School, Stenden University of Applied Sciences, Leeuwarden, The Netherlands Kathrin Rieck --- Stenden Hotel Management School, Stenden University of Applied Sciences, Leeuwarden, The Netherlands Fei Xie --- Stenden Hotel Management School, Stenden University of Applied Sciences, Leeuwarden, The Netherlands Tobias Gerhardt --- Stenden Hotel Management School, Stenden University of Applied Sciences, Leeuwarden, The NetherlandsIn the present study the cultural dimensions of the well known Dutch researcher Geert Hofstede were tested on a sample of international business students. The sample consisted of 1 033 students from the Netherlands, Germany, China, South Africa and Qatar. The findings... -
Work-to-family enrichment: Influences of work resources, work engagement and satisfaction among employees within the South African context
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Marissa De Klerk --- WorkWell Research Unit, North-West University, Potchefstroom Campus, South Africa Jan Alewyn Nel --- WorkWell Research Unit, North-West University, Potchefstroom Campus, South Africa Eileen Koekemoer --- WorkWell Research Unit, North-West University, Potchefstroom Campus, South AfricaThe aim of this study was to investigate the relationship of work resources, work-to-family enrichment, engagement and job satisfaction among employees in the South African context. Data were collected from 627 participants (females=67%, Afrikaans or English speakers=81.8%). The analysis utilised... -
Burrow architecture of the Damaraland mole-rat (Fukomys damarensis) from South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Hannah G Thomas --- Department of Zoology, South Africa Daniel Swanepoel --- Department of Zoology, South Africa Nigel C Bennett --- Department of Zoology, South AfricaThe burrow architecture (length, internal dimensions, fractal dimension of tunnel systems, number of nesting chambers and surface mounds) was investigated in the Damaraland mole-rat (Fukomys damarensis). A total of 31 animals were caught from five different colonies and their burrow... -
How relevant are Hofstede's dimensions for inter-cultural studies? A replication of Hofstede's research among current international business students
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Klaes Eringa --- Stenden Hotel Management School, Stenden University of Applied Sciences, The Netherlands Laura N. Caudron --- Stenden Hotel Management School, Stenden University of Applied Sciences, The Netherlands Kathrin Rieck --- Stenden Hotel Management School, Stenden University of Applied Sciences, The Netherlands Fei Xie --- Stenden Hotel Management School, Stenden University of Applied Sciences, The Netherlands Tobias Gerhardt --- Stenden Hotel Management School, Stenden University of Applied Sciences, The NetherlandsIn the present study the cultural dimensions of the well known Dutch researcher Geert Hofstede were tested on a sample of international business students. The sample consisted of 1 033 students from the Netherlands, Germany, China, South Africa and Qatar... -
Comparison of wood, fibre and vessel properties of drought-tolerant eucalypts in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Sven-Olof Lundqvist --- Innventia AB, Sweden Thomas Grahn --- Innventia AB, Sweden Lars Olsson --- Innventia AB, Sweden Thomas Seifert --- Department of Forest and Wood Science, South AfricaThree drought-tolerant eucalypt genotypes have been investigated for a broad spectrum of properties to provide a basis for comparison on their suitability for various end-uses. The genotypes included were a Eucalyptus grandis × E. camaldulensis hybrid, E. gomphocephala and E... -
A conceptual model of heritage dimensions and agrotourism: Perspective of Nandi County in Kenya
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Belsoy Josphat Sawe --- Departmentof Hotel and Hospitality Management, School of Tourism Hospitality and Events Management, Kenya Damiannah Kieti --- Departmentof Hotel and Hospitality Management, School of Tourism Hospitality and Events Management, Kenya Bob Wishitemi --- Departmentof Hotel and Hospitality Management, School of Tourism Hospitality and Events Management, KenyaConceptual frameworks have previously been used to give a structure to research that essentially simplifies thinking and clarifies issues, while at the same time providing a common reference point. Agrotourism is fast emerging as a key player in the activation... -
Flat model structures under excellent extensions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Wei Ren --- , ChinaWe prove that the weak equivalences, cofibrations and fibrations in Gillespie’s flat model structure are invariant under excellent extensions of rings. As applications, the flat and cotorsion dimensions of unbounded complexes along excellent extensions are investigated, and moreover, some homological... -
Income poverty versus multidimensional poverty: Empirical insight from Qwaqwa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Rachel Nishimwe-Niyimbanira --- , South AfricaPoverty has numerous dimensions that affect people’s well-being. The literature on the concept and measurement of poverty has significantly improved from the traditional unidimensional (income/expenditure) analysis to the multidimensional concept of poverty and well-being. This paper critically compared the monetary... -
Criminal psychology trend prediction based on deep learning algorithm and three-dimensional convolutional neural network
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yan Fan --- , ChinaIn the modern era, the empirical analysis of countermeasures against crime has developed rapidly from the perspective of crime causes. The concept of punishment based on preventionism has been vigorously developed. We aimed to apply the principle of convolutional neural... -
Profiling gendered multidimensional poverty and inequality in post-apartheid South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kehinde O. Omotoso --- , South Africa Jimi Adesina --- , South Africa Ololade G. Adewole --- , NigeriaReducing the gender gap in poverty remains a priority for South African policymakers. Using the 2018 General Households Survey (GHS), this paper examines gendered multidimensional poverty in post-apartheid South Africa. The analyses draw on Alkire-Foster multidimensional poverty methodology to present... -
Reducing poverty through use of irrigation: Evidence from rice farming in Benin
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Gbetondji Melaine Armel Nonvide --- , BeninAn emerging body of literature has claimed that poverty is multidimensional and therefore the unidimensional measure cannot serve as a good proxy for poverty. The actual debate is about the inclusion of other dimensions in the poverty analysis framework. Regarding... -
Disclosure of HIV status between parents and children in Uganda in the context of greater access to treatment
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: David Kyaddondo [d332e18] Rhoda K. Wanyenze John Kinsman Anita HardonWhile disclosure of HIV sero-status is encouraged in the management of the HIV and AIDS epidemic, it remains a challenge, especially among family members. This article examines the moral dilemmas and pragmatic incentives surrounding disclosure of HIV status in contemporary... -
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 =... -
What can hotels learn content wise from online travel agency websites?
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Marit de Vries --- NHL Stenden University of Applied Sciences, The NetherlandsThis research focuses on the specific information present on a hotel website and an online travel agency (OTA) hotel page, and to identify what information relates to which customer value. A checklist, based on the combination of OTA consumption values... -
Average Hewitt-Stromberg and box dimensions of typical compact metric spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bilel Selmi --- University of Monastir, TunisiaThe main aim of this paper is to study average Hewitt-Stromberg and box dimensions of typical compact metric spaces belonging to the Gromov-Hausdorff space equipped with the Gromov-Hausdorff metric. -
On dual-classical Krull dimension of rings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sayed Malek Javdannezhad --- Shahid Rajaee Teacher Training University, Iran Sayedeh Fatemeh Mousavinasab --- Shahid Chamran University of Ahvaz, Iran Nasrin Shirali --- Shahid Chamran University of Ahvaz, IranAn ideal L of a ring R is said to be strongly hollow (briefly, sh-ideal) if L ⊆ A + B implies that either L ⊆ A or L ⊆ B, for every pair A and B of ideals of... -
Almost clean elements in C(X)
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: R. Mohamadian --- Shahid Chamran University of Ahvaz, IranAn element a in a ring R is called almost clean if a can be written as a = r + e, where r is a regular (non zero-divisor) element and e is an idempotent. It is well known that... -
The ℓp -metrization of functors with finite supports
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Taras Banakh --- Ivan Franko National University of Lviv, Ukraine Viktoria Brydun --- Ivan Franko National University of Lviv, Lesia Karchevska --- , Ukraine Mykhailo Zarichnyi --- Ivan Franko National University of Lviv, UkraineLet p ∈ [1, ∞] and F : Set → Set be a functor with finite supports in the category Set of sets. Given a non-empty metric space (X, dX), we introduce the distance on the functor-space FX as the... -
Monotone ODEs with discontinuous vector fields in sequence spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Oleg Zubelevich --- Steklov Mathematical Institute of Russian Academy of Sciences, RussiaWe consider a system of ODE in a Fréchet space with unconditional Schauder basis. The right side of the ODE is a discontinuous function. Under certain monotonicity conditions we prove an existence theorem for the corresponding initial value problem. We... -
Effects of succinic acid impregnation on physical properties of sapwood and heartwood from plantation-grown short-rotation teak
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Sarah Augustina --- National Research and Innovation Agency (BRIN), Indonesia Teguh Darmawan --- National Research and Innovation Agency (BRIN), Indonesia Sudarmanto --- National Research and Innovation Agency (BRIN), Indonesia Narto Narto --- National Research and Innovation Agency (BRIN), Indonesia Adik Bahanawan --- National Research and Innovation Agency (BRIN), Indonesia Danang S Adi --- National Research and Innovation Agency (BRIN), Indonesia Dimas Triwibowo --- National Research and Innovation Agency (BRIN), Indonesia Yusup Amin --- National Research and Innovation Agency (BRIN), Indonesia Imran A Sofianto --- National Research and Innovation Agency (BRIN), Indonesia Prabu S Sejati --- National Research and Innovation Agency (BRIN), Indonesia Wahyu Dwianto --- National Research and Innovation Agency (BRIN), Indonesia Witjaksono --- National Research and Innovation Agency, Indonesia Ragil Widyorini --- Universitas Gadjah Mada, Philippe Gérardin --- Université de Lorraine, France Sari Delviana Marbun --- National Research and Innovation Agency (BRIN), IndonesiaThe aim of this study was to improve the properties of 15-year-old short rotation teak wood using a succinic acid (SA) treatment without excessively increasing the weight gain. The samples were classified as sapwood (SW) and heartwood (HW). Samples were... -
On the largest regular subring of C(X)
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Adelzadeh --- Shahid Chamran University of ahvaz, Iran F. Azarpanah --- Shahid Chamran University of ahvaz, Iran R. Mohamadian --- Shahid Chamran University of ahvaz, IranWe call a real-valued function f on a topological space X a locally constant if each point x ∈ X has a neighborhood on which f is constant. The set of all locally constant functions f: X → ℝ is... -
Some measure-theoretic aspects of fractal functions: invariant measures and function spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Megha Pandey --- , India Tanmoy Som --- , India Saurabh Verma --- , IndiaBarnsley (1986) introduced the concept of fractal interpolation functions (FIFs). Thereafter, numerous theories have been developed concerning FIFs and their properties. In this article, we explore some measure theoretic aspects of FIFs generated by the method given by Barnsley. We... -
Orientation, thermal characteristics and structural dimensions of Mangrove Kingfisher Halcyon senegaloides nest cavities in arboreal termitaria in central Mozambique
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Darren W Pietersen --- University of Pretoria, South Africa Gregory BP Davies --- , United States of America Craig T Symes --- University of the Witwatersrand, South AfricaThe breeding ecology of the Mangrove Kingfisher Halcyon senegaloides (family Alcedinidae) remains poorly known. While the few nests recorded in southern and East Africa have been in tree hollows, a seasonal population in central Mozambique woodland breeds in cavities in... -
Bayesian forecasting of stock returns on the JSE using simultaneous graphical dynamic linear models
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Nelson Kyakutwika --- Stellenbosch University, South Africa Bruce Bartlett --- Stellenbosch University, South AfricaCross-series dependencies are crucial in obtaining accurate forecasts when forecasting a multivariate time series. Simultaneous Graphical Dynamic Linear Models (SGDLMs) are Bayesian models that elegantly capture cross-series dependencies. This study forecasts returns of a 40... -
Flows with constant slope on the Klein bottle
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Luís Barreira --- Universidade de Lisboa, Portugal Jaume Llibre --- Universitat Autònoma de Barcelona, Spain Claudia Valls --- Instituto Superior Técnico, Universidade de Lisboa, PortugalWe consider smooth flows with constant slope on the 2-dimensional (flat) torus and on the (flat) Klein bottle. It is well known that for a flow with constant slope on the torus either all orbits are periodic or all orbits... -
On SVc -Spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Amir Veisi --- Yasouj University, Iran Zahra Keshtkar --- Yasouj University, IranWe say that a topological space X is an SVc-space if Cc (X) is an SV - ring, that is, is a valuation ring for every prime ideal P of Cc (X). The purpose of this paper is to study... -
Listening to the voices of Namibia’s recreational anglers to improve shore-based fishery resource use and management
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NMC Gusha --- University of Namibia, Namibia AM Veii --- University of Namibia, Namibia NM Nghipangelwa --- University of Namibia, Namibia AS Shikongo --- University of Namibia, Namibia CS Bova --- Rhodes University, South Africa A Kanyimba --- University of Namibia, Namibia GH Engelhard --- Fisheries and Aquaculture Science (Cefas), United Kingdom K Hyder --- Fisheries and Aquaculture Science (Cefas), United Kingdom B Snow --- Scottish Association for Marine Science (SAMS), United Kingdom WM Potts --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa MR Wilhelm --- University of Namibia, NamibiaIn most fisheries, the traditional centralised, top-down management approach is still prevalent despite its limited success. While a bottom-up ecosystem-based approach is increasingly preferred, a shift in focus from purely ecological considerations to a socio-ecological system approach is necessary. The...
