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AFLP and RAPD markers linked to leaf rust resistance gene Lr41 in wheat
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J-M. Lottering --- Department of Genetics, A-M. Botha --- Department of Genetics, F.J. Kloppers --- , South AfricaRAPD (random amplified polymorphic DNA) and AFLP (amplified fragment length polymorphism) analyses were used to identify molecular markers linked to the leaf rust resistance gene Lr41. Bulk and parental lines were screened with 380 RAPD primers and 64 AFLP primer... -
Development of a doubled haploid mapping population and linkage map for the bread wheat cross Kariega × Avocet S
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: R. Prins --- , South Africa V.P. Ramburan --- , South Africa Z.A. Pretorius --- Department of Plant Sciences, South Africa L.A. Boyd --- Department of Disease and Stress Biology, John Innes Centre, UK W. H.P. Boshoff --- , South Africa P.H. Smith --- Department of Disease and Stress Biology, John Innes Centre, UK J.H. Louw --- Department of Genetics, South AfricaA doubled haploid wheat population of 150 lines was constructed from the F1 of a cross between cultivars Kariega and Avocet S using the wheat-maize technique. Segregation and linkage analysis of 203 DNA markers, two storage protein markers and the... -
Patient and provider perspectives on improving the linkage of HIV-positive pregnant women to long-term HIV care and treatment in eastern Uganda
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Haneefa Saleem --- Department of International Health, USA Robert Kyeyagalire --- Nuffield Department of Population Health, United Kingdom Sarah Smith Lunsford --- EnCompass, LLC, USADespite strong evidence that antiretroviral therapy (ART) reduces the risk of mother-to-child transmission of HIV and improves the health of HIV-positive mothers, many HIV-positive pregnant women do not enrol into long-term HIV care and treatment. This study examined barriers and... -
Spatial variability of macrozoobenthic diversity on tidal flats of the Niger Delta, Nigeria: the role of substratum
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Zabbey --- Department of Animal Science and Fisheries, Nigeria AI Hart --- Department of Animal and Environmental Biology, NigeriaBaseline community assemblages and diversity of macrozoobenthic infauna in soft-bottomed intertidal flats at Bodo Creek on the upper reaches of the Andoni–Bonny estuarine system were determined spatially and in relation to sediment particle characteristics for two years from May 2006... -
The role of the forestry industry for the success of community forestry: a comparative input–output analysis across India and the Philippines
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Jungho Suh --- Geography, Environment and Population, AustraliaThis paper uses the 'input–output analysis' technique to investigate why the Joint Forest Management program in India has expanded while the uptake of the Community-based Forest Management program in the Philippines has been relatively slow. The forward linkage of the... -
The importance of estuarine-derived carbon for the nearshore marine environment: studies on two contrasting South African estuaries
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PD Vorwerk --- Department of Zoology and Entomology, South Africa PW Froneman --- Department of Zoology and Entomology, South AfricaThe food web structure within and adjacent to two permanently open estuaries with contrasting flow regimes along the south-eastern coast of South Africa was investigated employing stable isotope analysis. The Kariega Estuary is considered a freshwater-deprived system, while the Great... -
What are the university–productive sector links that matter in a small island country? The case of Cabo Verde
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Alexandre O. Vera-Cruz --- Department of Economics and the Postgraduate Program in Economics and Innovation Management, MexicoThere is extensive literature on university–firm links but it is mostly based on empirical evidence from advanced countries, emerging economies and developing countries that already have certain capabilities of the public research system and an important set of mature firms... -
Foreign direct investment and local technological capabilities in least developed countries: some evidence from the Tanzanian manufacturing sector
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Bitrina Diyamett --- Science, Technology and Innovation Policy Research Organisation (STIPRO), Tanzania Musambya Mutambla --- Science, Technology and Innovation Policy Research Organisation (STIPRO), TanzaniaForeign direct investment has been found to be one of the very important ways of building local technological capabilities for developing countries, and an important channel through which international diffusion of knowledge and technology takes place. While this has been... -
Meso-zooplankton movement through the newly constructed Mfolozi channel into and out of the St Lucia Estuary, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Sean van Elden --- School of Life Sciences, University of KwaZulu-Natal, Westville Campus, South Africa Michael J. Dyer --- School of Life Sciences, University of KwaZulu-Natal, Westville Campus, South Africa Nicola K. Carrasco --- School of Life Sciences, University of KwaZulu-Natal, Westville Campus, South Africa Renzo Perissinotto --- School of Life Sciences, University of KwaZulu-Natal, Westville Campus, South AfricaThe historical canalization of the Mfolozi River resulted in the St Lucia Estuary losing its main freshwater source. This, combined with the recent drought, led to low water levels, hypersaline conditions and dramatic losses in biodiversity. The excavation of a... -
The realignment of international stock markets after the 1987 crash, with special reference to the Johannesburg Stock Exchange
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: G D I Barr --- Department of Statistical Science, L Sharp --- Department of Economics,This paper investigates stock price associations between the world’s sixteen largest international markets in the period immediately before and after the 1987 market crash, as well as in a more recent post-crash period. The analysis suggests that the crash had... -
Comparing hotels’ employer brand effectiveness through social media and websites
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Sjoerd Gehrels --- Stenden Hotel Management School, The Netherlands Natascha Wienen --- Stenden Hotel Management School, The Netherlands Julio Mendes --- Faculty of Economics, PortugalThis research explores hotel companies’ employer branding (EB) through the internet. Many countries in the world will face a gap between the demand for talent in the hospitality and tourism industry and the available talent pool. Previous research found that,... -
The Internationalization of African Small and Medium Enterprises (SMEs): A South-North Pattern
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Everlyne Misati --- Florida International University, USA Fred O. Walumbwa --- Florida International University, USA Somnath Lahiri --- Illinois State University, USA Sumit K. Kundu --- Florida International University, USADespite the growing internationalization of small and medium enterprises (SMEs) from Africa, related research remains limited. Adopting a qualitative approach, this study investigates three SMEs in the African coffee subsector that internationalized rapidly beyond the continent. The case studies, based... -
Use of hydrogels in the planting of industrial wood plantations
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Jacob W Crous --- Sappi Forests, South AfricaThe quantity of available water in soil is crucial for plant growth, especially after transplanting as this water will enable the growth of new roots to facilitate nutrient and water uptake. Water absorbed by a hydrogel (superabsorbent polymer) has the... -
Assessment of noise-levels of generator-sets in seven cities of South-Southern Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Osagie Ibhadode --- Building Research Department, Nigeria I. T. Tenebe --- Department of Civil Engineering, Nigeria P. C. Emenike --- Department of Civil Engineering, Nigeria O. S. Adesina --- Dept. of Mathematical Science, Nigeria A. F. Okougha --- Science Laboratory Technology Research Department, Nigeria F. O. Aitanke --- Department of Production Engineering, NigeriaNoise pollution has been shown to be a global health hazard and this could be aggravated by the use of noise-emitting generators. Therefore, this study aims to determine the Sound Pressure Levels Sound Power Levels as well as Noisiness of... -
The role of support groups in linking and retaining newly diagnosed clients in HIV care in a peri-urban location in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Siyabonga Kave --- Department of Rural Health, South Africa Nelisiwe F Khuzwayo --- Department of Rural Health, South Africa Abigail Hatcher --- School of Public Health, South Africa Yandisa Sikweyiya --- Gender & Health Research Unit, School of Public Health, South AfricaAlthough South Africa has the largest number of people on antiretroviral therapy (ART) in the world, many HIV clients drop out of care immediately after HIV diagnosis. This qualitative study explored the perceptions and experiences of newly diagnosed clients on... -
Local food and tourism in the Global South
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Gabriel CM Laeis --- Department of Hospitality, Tourism and Event Management, GermanyMany countries in the Global South import a significant share of the food served to tourists. For decades, closer linkages of local food producer and the resort industry have been heralded as an antidote to this unsustainable circumstance, further encouraged... -
Social cognitive drivers of farmer learning behaviour in the student-to-farmer university outreach in Uganda
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Stephen W. Kalule --- Department of Extension and Innovations Studies, College of Agricultural and Environmental Sciences, Kampala, Uganda Haroon Sseguya --- Department of Extension and Innovations Studies, College of Agricultural and Environmental Sciences, Kampala, Uganda Duncan Ongeng --- Faculty of Agriculture and Environment, Gulu, Uganda Gabriel Karubanga --- Department of Extension and Innovations Studies, College of Agricultural and Environmental Sciences, Kampala, UgandaGlobally, universities are repositioning themselves for community outreach although with difficulty in responding to the unpredictable social features of host communities. Accordingly, this study aims to assess the role of social cognitive factors in farmer learning behaviour during university outreach... -
A community-based HIV counselling and testing programme found a decreasing proportion of new HIV testers in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Simukai Shamu --- Foundation for Professional Development, South Africa Thato Farirai --- Foundation for Professional Development, South Africa Jean Slabbert --- Foundation for Professional Development, South Africa Geoffrey Guloba --- Foundation for Professional Development, South Africa Nomea Masihleho --- USAID, South Africa Julius Kamera --- USAID, South Africa Nkhensani Nkwashu --- Foundation for Professional Development, South AfricaThis article assesses the history of HIV testing among community-based HIV counselling and testing (CBCT) clients between 2014 and 2018 in 13 South African districts. Consenting clients were tested for HIV and interviewed to categorise as first-time testers or repeat... -
Integration of family planning services into HIV services in Nigeria: Evidence from the Performance Monitoring and Accountability 2020 survey in seven states
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Babayemi O Olakunde --- , Nigeria Daniel A Adeyinka --- , Nigeria Funmilola M OlaOlorun --- , Nigeria Tolulope T Oladele --- , Nigeria Hidayat Yahaya --- , Nigeria Chinwendu D Ndukwe --- , NigeriaDespite global calls for stronger linkages between family planning and HIV, a growing body of evidence in sub-Saharan Africa suggests that the integration of family planning and HIV service delivery is suboptimal in some countries. In this study, we assess... -
DRIFT: incorporating an eco-social system network and time series approach into environmental flow assessments
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AR Joubert --- , South Africa CA Brown --- , South Africa JM King --- , South Africa H Beuster --- , South Africa A Greyling --- , South AfricaDRIFT (Downstream Response to Imposed Flow Transformation) is an interactive, ecological-social process and software package to assist with environmental flow assessments and river management decision-making. It was originally developed in the 1990s and has subsequently evolved and been applied in... -
Freshwater ecosystems and interactions with the SDG 2030 Agenda: implications for SDG implementation in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Libala --- , South Africa N Griffin --- , South Africa A Nyingwa --- , South Africa J Dini --- , South AfricaFreshwater ecosystems play a fundamental role in supporting the environment, the economy and people’s well-being. However, human development and mismanagement have degraded these ecosystems. Using network analysis, we examined the interlinkages (synergies and trade-offs) between indicator 6.6.1 (water-related ecosystems) and... -
Modules whose exact submodules are essentially embedded in summands
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Fıgen Takıl Mutlu --- Eskisehir Technical University, Turkey Adnan Tercan --- Hacettepe University, Turkey Ramazan Yaşar --- Hacettepe University, TurkeyIn this article we study the condition that every exact submodule is essentially embedded in direct summands in a module. It is shown that the class of modules with former property is closed under direct sums. However, we provide examples... -
Some geometric and physical properties of pseudo ψ-conharmonically symmetric manifolds
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Krishnendu De --- Kabi Sukanta Mahavidyalaya, The University of Burdwan, India Uday Chand De --- University of Calcutta, IndiaIn this article, we present a new tensor that generalizes the conharmonic curvature tensor, termed the ψ-conharmonic curvature tensor. In the first part, we derive some fundamental geometrical properties of a pseudo ψ-conharmonically symmetric manifold (briefly, ) and give some... -
Some further remarks on characterized subgroups generated by modular simple density
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ayan Ghosh --- Jadavpur University, IndiaIn this short note we have constructed an uncountable tower of characterized subgroups using the notion of modular simple density [8] which subsequently gives the solution of Problem 2.15 [7] in a more general setting. -
Topogenous orders and related families of morphisms
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: David Holgate --- University of the Western Cape, South Africa Minani Iragi --- Brno University of Technology, Czech RepublicIn a category with a proper ()-factorization system, we study the notions of strict, co-strict, initial and final morphisms with respect to a topogenous order. Besides showing that they allow simultaneous study of four classes of morphisms obtained separately with... -
Return and volatility connectedness across stock markets: A global perspective
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Huifu Nong --- School of Economics, Guangxi Minzu University, ChinaThe connectedness of stock markets is inevitable because of the rapid increases in global financialisation, financial liberalisation, and integration of national economies. This study therefore increases the number of stock markets included in the LASSO-VAR model to separately estimate the... -
Solutions of an anisotropic elliptic problem involving nonlinear terms
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Razani --- Imam Khomeini International University, Iran T. Soltani --- Imam Khomeini International University, IranUsing variational methods, the existence and multiplicity of weak solutions for the following Neumann anisotropic problem -
A generalization of the MP-
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Some results on anti-pre-Lie superalgebras and admissible Novikov superalgebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Zhao Chen --- Guangxi University for Nationalities, China Shanshan Liu --- Shenzhen Technology University, China Liangyun Chen --- Northeast Normal University, ChinaIn this paper, we extend the notion of anti-pre-Lie algebras to the ℤ2-graded version, and introduce the notion of anti-pre-Lie superalgebras. They can be characterized as a class of Lie-admissible superalgebras that satisfy its negative left multiplication operators are the... -
Characterizations of *-Ricci-Bourguignon solitons and contact Ricci-Bourguignon almost solitons
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Sourav Nayak --- Indian Institute of Technology – Hyderabad, India Dhriti Sundar Patra --- Indian Institute of Technology – Hyderabad, India Hemangi Madhusudan Shah --- Harish-Chandra Research Institute, A CI of Homi Bhabha National Institute, IndiaIn this paper, we first study *-Ricci-Bourguignon solitons (in short, *-RB solitons) and find their geometric characterizations on Sasakian manifolds. We show that if a Sasakian metric g admits a non-trivial *-RB soliton, then it is -homothetically fixed null η-Einstein... -
Strong domination number of graphs from primary subgraphs
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Saeid Alikhani --- Yazd University, Iran Nima Ghanbari --- University of Bergen, Norway Michael A. Henning --- University of Johannesburg, South AfricaA set D of vertices is a strong dominating set in a graph G, if for every vertex x ∈ V (G) \ D there is a vertex y ∈ D with xy ∈ E(G) and deg(x) ≤ deg(y). The... -
Marine–estuarine connectivity, salinity and sedimentation in the St Lucia system, South Africa, following reconnection with the uMfolozi River
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RH Taylor --- Independent Hydro-Ecologist, South Africa AK Whitfield --- South African Institute for Aquatic Biodiversity, South Africa CE Fox --- Ezemvelo KwaZulu-Natal Wildlife, St Lucia Estuary, South Africa JB Adams --- Botany Department and Institute for Coastal & Marine Research, Nelson Mandela University, South AfricaThis study reviews selected physical and biotic responses of the St Lucia estuarine system to the recently implemented management approach of re-establishing the connection between the uMfolozi River and the St Lucia Estuary. This connection was severed in the 1950s...