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An extension approach for the national grazing strategy based on farmer characteristics in the eastern cape1
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: P.G. King --- Department of Agriculture and Water Supply (Eastern Cape Region), T.J. Bembridge --- Department of Agricultural Extension and Rural Development,The development of a sound communication programme for the National Grazing strategy should be based on an understanding of the characteristics of the farmer population of the area concerned. The social, socio‐demographic, socio‐economie, socio‐psychological, communication and agricultural production characteristics of... -
Canopy temperature as a plant water stress indicator for nectarines
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Helga Tormann --- ,Three-year-old nectarine trees of the cultivar Independence grown in free-drainage lysimeters were exposed to a wet and a dry treatment, i.e. high soil moisture content throughout or progressive soil drying respectively. The canopy temperature of the trees was measured with... -
Movement of ammonia plus ammonium from nitrogen fertilizers band placed in alkaline soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.C. du Preez --- Department of Soil Science, Republic of South Africa R. du T. Burger --- Department of Soil Science, Republic of South AfricaMovement of NH3 plus NH4 + from nitrogen fertilizers, band placed either as crystals or as granules in alkaline soils, was determined. The pH values of these soils, whereof the clay contents ranged from 7,6 to 49,9%, were adjusted to... -
Smoking Habits Among Secondary School Students In Selected Districts In Zimbabwe. Gender, Urban/Rural And Social Class Differences
Item type: Journal Article • Journal: Southern African Journal of Child and Adolescent Mental Health • Authors: LelfE. Aarø --- Department of Psychosocial Science, ArneH. Eide --- Research Center for Health Promotion and SINTEF Unlmed (Oslo) Department for Health, Technology and Usability, StanleyW. Acuda --- Department of Psychiatry, Zimbabwe Tecla Butau --- Department of Psychiatry, ZimbabweObjective To examine the relationship between smoking habits and indicators of socioeconomic status, the urban/rural dimension and gender among secondary school students from selected districts in Zimbabwe. -
Extent of Access to Information and Communications Technology by the Rural Population of South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Moses Mefika Sithole --- Centre for Science, Technology and Innovation Indicators (CeSTII), South Africa Cheryl Moses --- Centre for Science, Technology and Innovation Indicators (CeSTII), Yul Derek Davids --- Population Health, Health Systems and Innovation (PHHSI), Saahier Parker --- Centre for Science, Technology and Innovation Indicators (CeSTII), Julien Rumbelow --- Centre for Science, Technology and Innovation Indicators (CeSTII), Neo Molotja --- Centre for Science, Technology and Innovation Indicators (CeSTII), Demetre Labadarios --- Centre for Science, Technology and Innovation Indicators (CeSTII),This paper investigates the trends in access to Information and Communications Technology (ICT) in rural compared to the urban areas of South Africa. Using data from the South African Social Attitudes Survey (SASAS) covering the period from 2003 to 2009,... -
The dynamics of local innovations among formal and informal enterprises: Stories from rural South Africa
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Alexandra Luis Mhula Links --- Human Sciences Research Council (HSRC), South Africa Tim Hart --- Human Sciences Research Council (HSRC), Pretoria, South Africa; Department of Sociology and Social Anthropology, Stellenbosch University, South Africa Peter Jacobs --- Human Sciences Research Council (HSRC), South AfricaExploiting the developmental potential of innovation for marginalised communities requires a context-specific understanding of the features and mechanics of innovation. In this article we explore the nature of innovation with the aid of evidence collected from formal and informal enterprises... -
Looking for innovation system builders: A case of Solar Energy Foundation in Ethiopia
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kassahun Y. Kebede --- Graduate School of Technology Management, Japan Toshio Mitsufuji --- Graduate School of Technology Management, Japan Eugene K. Choi --- Graduate School of Technology Management, JapanThe global diffusion of renewable energy technology (RET) has been sluggish, and as a result governmental support and policy interventions have been required. In this paper, we empirically investigated an innovation system building practice of an organisation engaged in the... -
Understanding the diffusion modes of grassroots innovations in India: A study of Honey Bee Network supported innovators
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Dinesh Abrol --- Institute of Studies in Industrial Development & Centre for Studies in Science Policy, Jawaharlal Nehru University, India Ankush Gupta --- Department of Civil Engineering, IndiaIn this paper we examine the outcomes and connections of preferences of the non-formal innovators identified by the Honey Bee Network (HBN) in India. The chosen mode of diffusion of each innovation has been correlated to socio-economic backgrounds, origins of... -
Dissemination effort, innovation attributes, and variations in innovation dissemination rate
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mawuena Aggey --- Process Technology and Innovation Research, Ghana Nana Kwamina Tekyi Ghartey --- Centre for Development Studies, Ghana Charles Kweku Brown --- Centre for Development Studies, GhanaInnovation-decision type, communication channels, social system, and change agents’ promotion effort influence innovation adoption, but 49–87% of variance in adoption rates is explained by perceived innovation attributes (Rogers 1995). Relationships between adoption rates and these variables are much researched but... -
Analysing the diffusion and adoption of renewable energy technologies in Africa: The functions of innovation systems perspective
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Aschalew Demeke Tigabu --- African Centre for Technology Studies (ACTS), KenyaRenewable energy technologies have increasingly been promoted to address energy poverty and environmental sustainability challenges in Africa. Yet, their diffusion and uptake remain marginal. The focus of renewable energy technology diffusion research in Africa has largely been on identifying technological,... -
The innovation system for diffusion of small wind in Kenya: Strong, weak or absent? A technological innovation system analysis
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Faith Hamala Wandera --- , KenyaKenya is currently seeking to promote rural electrification through a decentralized approach for deploying renewable energy. This article asks whether an innovation system is in place to support the diffusion of small wind which could complement rural electrification using solar... -
Diffusion of innovations: Theoretical perspectives and empirical evidence
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Bibhunandini Das --- , IndiaThis paper attempts to review the theoretical and empirical perspectives of innovation-diffusion literature. The objective of this paper is to develop a heuristic framework by reviewing the existing studies for analyzing the diffusion of innovation and its outcome in different... -
Process evaluation of school-based peer education for HIV prevention among Yemeni adolescents
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Buthaina Al-Iryani [d357e18] Huda Basaleem Khaled Al-Sakkaf Gerjo Kok Bart van den BorneIn 2005, a survey was conducted among all the 27 high schools of Aden, which revealed low levels of knowledge on major prevention measures, and a high level of stigma and discrimination towards people living with HIV (PLWH). The results served... -
Determinants of accounting information systems technologies adoption by SMEs in Ethiopia: A sub-Saharan country perspective
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abera Aynekulu Abate --- Debark University, EthiopiaThis study sought to pinpoint determinants of AISs technologies adoption among SMEs in Ethiopia. Two dominant diffusion of innovation theories, namely Technology-Organization-Environment (TOE) and Diffusion of Innovation (DOI) were contextualized to predict SMEs’ AISs adoption. A quantitative research approach with... -
Adapting to climate change amidst innovation diffusion and declining indigenous agricultural knowledge and practices in Ghana
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Pius Siakwah --- University of Ghana, Ghana Austin Dziwornu Ablo --- University of Ghana, Ghana Rosina Sheburah-Essien --- University of Ghana, Ghana Mariama Zaami --- University of Ghana, Ghana Joseph Awetori Yaro --- University of Ghana, GhanaThis paper examines how farmers adapt to climate change through innovation diffusion amidst declining indigenous agricultural knowledge and practices in Ghana. Small-scale farmers rely on indigenous practices and technological diffusion to cope with change even where the adoption levels of... -
A hybrid regularization method for simultaneous inversion of source term and initial value in a time-fractional diffusion equation
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jin Wen --- Northwest Normal University, P.R. China Yong-Ping Wang --- Northwest Normal University, P.R. China Li-Ming Huang --- Northwest Normal University, P.R. China Donal O’Regan --- University of Galway, IrelandThis paper considers an inverse problem to find the space-dependent source term and initial data simultaneously in a time-fractional diffusion equation. This inverse problem is usually ill-posed, that is, small errors in the measurement typically lead to large errors in... -
Revitalizing tribal economic systems through indigenous entrepreneurship: Innovations and strategies
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Anjali Chandulal Lakum --- Parul Institute of Social Work, Parul University, IndiaAmid growing global interest in sustainable and inclusive development, indigenous entrepreneurship and grassroots innovations are increasingly recognized as powerful yet underexplored pathways for community resilience. This study investigates how such innovations contribute to the revitalization of tribal economic systems, with... -
Numerical solution of the simultaneous identification problem for a time-fractional diffusion equation
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Zhousheng Ruan --- East China University of Technology, P.R. China Jie Zhou --- East China University of Technology, P.R. China Guanghong Wan --- East China University of Technology, P.R. China Wen Zhang --- East China University of Technology, P.R. ChinaIt is a key problem to determine the initial diffusion time and initial value in a time fractional diffusion model when using the fractional diffusion model to describe the emerging anomalous diffusion phenomenons in real world. This paper considers a...
