Author:Skinner, DGDate:Feb 1994The available data bases for accidents, road geometry (photolog output) and traffic counts were combined and the accident rates determined for two lane, four lane and six lane road categories as well as for 22 geometric element categories. ...Read more
Author:Meiklejohn, C; Goss, H; Whisken, JDate:Nov 2008This paper presents the CSIR’s contribution to technical advances in the approach to provincial spatial planning in South Africa. It demonstrates the CSIR’s involvement in conducting the national Provincial Growth and Development Strategy ...Read more
Author:Roux, DJ; Kleynhans, CJ; Thirion, C; Hill, Liesl; Engelbrecht, JS; Deacon, AR; Kemper, NPDate:Oct 1999The River Health Programme (RHP) is being designed to generate information regarding the ecological state of riverine ecosystems in South Africa. An adaptive assessment and management procedure is suggested as a means of linking the monitoring ...Read more
Author:Twinch, AJ; Breen, CMDate:Feb 1980The definitions of the different phosphorus compound fractions present in inland waters are reviewed and the limitations of the definitions discussed. The development of models of phosphorus cycling is summarized. Attempts to establish their ...Read more
Author:Burns, MER; Audouin, Michelle A; Weaver, AVDate:Sep 2006Science has considerable potential to contribute to sustainable development. Much of this potential remains latent, however, due to the divisions that exist within and between the producers of scientific information and the users of this and ...Read more
Author:Moran, VC; Moran, PMDate:Dec 1982A compilation of references to research on alien invasive plants in South Africa is given. Crop weeds and indigenous plants are not included. Reference is made to 457 publications. Keyword listings and a keyword index are provided.Read more
Author:Le Maitre, David C; Richardson, DM; Chapman, RADate:Jan 2004Invasive alien plants pose a substantial threat to the rich biodiversity of South Africa, and to the sustained delivery of a wide range of ecosystem services. Biological invasions are driven by human activities and mediated by culturally ...Read more
Author:Wright, CY; Coetzee, G; Ncongwane, KDate:Jul 2011The detrimental effects of excess personal solar ultraviolet (UV) radiation exposure include sunburn, immunosuppression and skin cancer. In South Africa, individuals with minimum natural protection from melanin, including fair-skinned individuals ...Read more
Author:Shackleton, CMDate:14 Dec 1998The annual production of deadwood available for harvesting by hand was determined from 28 permanent plots over three years for three protected areas along a rainfall gradient. Annual production varied considerably for individual plots, but ...Read more
Author:Pillay, P; Maharaj, V; Crouch, N; Smith, P; Lategan, C; Vleggaar, RDate:Feb 2006With the emergence and spread of drug- resistant parasites, there is a need for new chemically diverse, effective antimalarial drugs. A national multidisciplinary consortium was established to validate scientifically South African medicinal ...Read more
Author:Brent, AC; Rogers, DEC; Ramabitsa-Siimane, TSM; Rohwer, Mark BDate:Sep 2006This paper focuses on the establishment of waste management systems that minimize infection risks in the context of sustainable development in the developing country situations. The Analytical Hierarchy Process (AHP), a known multi-criteria ...Read more
Author:Trickett, JC; Stevenson, F; Vogt, D; Mason, I; Hargreaves, J; Eybers, H; Fynn, R; Meyering, MDate:May 2000Borehole Radar has been identified as the most immediately applicable electromagnetic technique to delineate disruptions to gold reef in the South African Deepmine environment. The economically important Ventersdorp Contact Reef (VCR) has ...Read more
Author:Rogers, DEC; Masekoameng, E; Oelofse, Suzanna HHDate:Oct 2008This paper gives background on the Best Practicable Environmental Option (BPEO) which is a principle in the National Environmental Management Act (1998) and is included now in Section 48.c of the NEMWaste Bill, [Version Sept 2007] (2007), as ...Read more
Author:Rodda, N; Amory, A; Kfir, RDate:1993The feasibility of applying microbial risk assessment techniques in South Africa was evaluated by assessing risks associated with enteric viruses in raw and treated drinking water. Maximum daily risks associated with treated drinking water ...Read more
Author:Van Tienhoven, AM; Olbrich, KA; Skoroszewski, R; Taljaard, J; Zunckel, MDate:Dec 1995South Africa is the most industrialised country in southern Africa and stands at some risk from negative pollution impacts. To the authors' knowledge, this paper presents the first attempt to apply the critical loads approach on the African ...Read more
Author:Strydom, Wilma FDate:Sep 2018This paper reports on an application of the Theory of Planned Behavior to understand the relationships between the determinants (latent variables) comprising the Theory of Planned Behavior and, based on these findings, to guide decision-making ...Read more
Author:Safriel, O; Bruton, MNDate:Jun 1984During the past few years the National Programme for Environmental Sciences has been involved in assessing the potential of aquaculture in South Africa and in formulating a research policy which will provide the information needed to place ...Read more
Author:Olbrich, K; Skoroszewski, R; Van Tienhoven, MDate:Mar 1996This paper aims to address and integrate the three main components of the air pollution problem in South Africa: assessment and measurement of air quality, evaluation of the effects of poor air quality, and management of air quality.Read more
Author:Moodley, RS; Andrew, Jerome E; Sithole, Bishop BDate:Mar 2018Bark, a major waste residue in the forestry, timber, pulp and paper industry has been shown to be a potential source of valuable chemicals. The chemical composition of bark extracted from South African plantation grown E. grandis and P. patula ...Read more