Author:Sampson, L; Rust, FC; Smit, Michelle ADate:Oct 2022It is estimated that 80% of the developing world’s poor live in rural areas. Low volume rural roads account for 80 to 90% of the road infrastructure in most developing countries and are critical to the access and mobility of rural communities. ...Read more
Author:Coetzee, S; Cooper, Antony KDate:Nov 2007In this paper, the authors illustrate the need for standardized addresses in South Africa by describing scenarios where standardized addresses are required, or where standardized addresses would improve the current situation. They present the ...Read more
Author:Archibald, SA; Roy, DP; Van Wilgen, BW; Scholes, RJDate:Mar 2009The factors controlling the extent of fire in Africa south of the equator were investigated using moderate resolution (500 m) satellite-derived burned area maps and spatial data on the environmental factors thought to affect burnt area. A ...Read more
Author:Meissner, Richard; Jovanovic, Nebojsa; Petersen, Chantel RDate:Sep 2017The uptake of scientific knowledge is not always a grand affair. Many observers assume that scientists need to communicate with high-ranking government officials to influence policy. Grandiosely seen, scientists’ views and understandings are ...Read more
Author:Pretorius, CJ; Chesalokile, TDate:Mar 2013The ISO/IEC 17025 Standard was developed by the International Standards Organisation (ISO) to provide a mechanism to enable laboratories to manage the quality of their analytical results and to produce internationally comparable results. The ...Read more
Author:Williams, BG; Gouws, E; Karim, SSADate:Jun 2000Demographic forecasting models of the South African population, incorporating geographical distribution and age prevalence data on HIV infection, have been used to predict future mortality due to AIDS. In year 2010, approximately 500 000 ...Read more
Author:Williams, BG; Gouws, E; Karim, SSADate:Jun 2000This article covers many aspects of the epidemic of HIV/AIDS in South Africa. They range from the development of vaccine to the behaviour of adolescents. But they also show that authors have failed so far to have a significant impact on the ...Read more
Author:Spangenberg, D-M; Dudley, Angela L; Neethling, PH; Rohwer, EG; Forbes, ADate:2014Spatial light modulators are ubiquitous tools for wavefront control and laser beam shaping but have traditionally been used with monochromatic sources due to the inherent wavelength dependence of the calibration process and subsequent phase ...Read more
Author:Meissner, RichardDate:Jan 2014The purpose of this paper is to introduce a framework to analyse water politics and governance in order to highlight aspects that are lesser known within the South African water discourse and to introduce and further a critical understanding ...Read more
Author:Mapeto, T; Louw, J; Gush, Mark B; Pauw, JDate:Mar 2018In a water-scarce country such as South Africa, timber and fibre production often stands in conflict with catchment water yields. The optimal provision of both is sought. Forest hydrological experiments improve our understanding of the ...Read more
Author:Wesley-Smith, J; Walters, Chavon R; Pammenter, NW; Berjak, PDate:Oct 2015Background and Aims Conservation of the genetic diversity afforded by recalcitrant seeds is achieved by cryopreservation, in which excised embryonic axes (or, where possible, embryos) are treated and stored at temperatures lower than -180(sub0)C ...Read more
Author:Holtmann, BDate:Mar 2008A 2003 initiative to develop a crime prevention strategy for the Central Karoo District Municipality helped formulate the ‘life cycle’ that perpetuates crime and violence, which is discussed in this article. Children’s developmental needs are ...Read more
Author:Meissner, RichardDate:Jul 2015Water security and the appropriate management of water resources are vitally important to South Africa, its population and the economy. According to the Department of Water and Sanitation’s 2013 Strategic Overview of the Water Sector in South ...Read more
Author:Thomalla, Sandy J; Nicholson, Sarah-Anne; Ryan-Keogh, Thomas J; Smith, Marie EDate:Aug 2023Climate change is expected to elicit widespread alterations to nutrient and light supply, which interact to influence phytoplankton growth and their seasonal cycles. Using 25 years of satellite chlorophyll a data, we show that large regions ...Read more
Author:Kekana, H; Landwehr, Gregory BDate:Jun 2019The wind capacity factor calculator is developed to perform two main tasks: to estimate the annual energy production from the wind resource at any location in South Africa, and to compare the two datasets used in its operation with standard ...Read more
Author:Rouault, Marjolaine J; Verley, P; Backeberg, Bjorn-ChristophDate:2016Sea surface temperature (SST) estimated from the Advanced Microwave Scanning Radiometer E onboard the Aqua satellite and altimetry-derived sea level anomalies are used south of the Agulhas Current to identify warm-core mesoscale eddies ...Read more
Author:Karamanski, Stefan; Erfort, GDate:Apr 2023South Africa’s energy network is under severe pressure due to low supply and overwhelming demand. With an increase in renewable energy providers, specifically wind energy, knowing how the supply can satisfy the electricity demand may relieve ...Read more