Author:Taljaard, Susan; Van Niekerk, Lara; Lemley, DADate:Jan 2018In South Africa more than 80% of estuaries are small, dynamic and predominantly linear systems. Nutrient characteristics in these systems are mostly influenced by external catchment processes, except during extended periods of closure. However, ...Read more
Author:Staver, C; Archibald, S; Levin, SADate:Oct 2011Theoretically, fire–tree cover feedbacks can maintain savanna and forest as alternative stable states. However, the global extent of fire- driven discontinuities in tree cover is unknown, especially accounting for seasonality and soils. The ...Read more
Author:Celliers, Louis; Monteiro, Pedro MSDate:Oct 2012This international workshop was convened in order to develop a proposal for an integrated global observing network for both carbon and ocean acidification that addresses the requirements of nations affected by this emerging environmental ...Read more
Author:Kishore, P; Namboothiri, SP; Jiang, JH; Sivakumar, V; Igarashi, KDate:04 Feb 2009This paper mainly focuses on the validation of temperature estimates derived with the newly launched Constellation Observing System for Meteorology Ionosphere and Climate (COSMIC)/Formosa Satellite 3 (FORMOSAT-3) system. The analysis is based ...Read more
Author:Luo, J; Tang, H; Tian, X; Liao, S; Ren, Jianwei; Zhao, W; Qiao, XDate:Aug 2019In this work, a glucose-derived carbon supported CrN composite is prepared by using a hydrothermal method and followed by a nitridating process. It is found that CrN nanoparticles in the composite are well-dispersed and separated by the carbon ...Read more
Author:Bothma, G; Mashaba, C; Mkonza, N; Chakauya, E; Chikwamba, Rachel KDate:Aug 2010Genetically modified organisms are expected to have a large impact on the ability of humanity to feed, fuel and heal itself in light of the growing global change, and adverse geo-climatic conditions anticipated as a result of climate change. ...Read more
Author:Wall, K; Bhagwan, JDate:Sep 2011In an effort to improve the cleaning and maintenance of water and sanitation infrastructure in South Africa, an innovative franchising approach is being piloted at 400 schools, improving not only sanitation facilities, but also health and ...Read more
Author:Turton, AR; Schultz, C; Buckle, H; Kgomongoe, M; Malungani, T; Drackner, MDate:Jun 2006Johannesburg is an unusual city because it is one of the few major cities of the world that does not lie on a river, a lake or a seafront. Since the discovery, of gold in 1886, Johannesburg has grown from a dusty mining town to a major urban ...Read more
Author:Leuta, T; John, J; Wright, CDate:Feb 2012According to a World Health Organisation (WHO) survey, scientific evidence on the associations between housing and health has grown over recent years. In spite of this knowledge, housing and construction standards are still governed by technical ...Read more
Author:Burmeister, O; Phahlamohlaka, Letlibe J; Al-Saggaf, YDate:2015Good governance from an ethical perspective in cyberdefence policy has been seen in terms of duty and consequentialism. Yet the negotiated view of virtue ethics can also address how nation states mitigate the risks of a cyber attack to their ...Read more
Author:Pretoria NewsDate:27 Aug 2008The head of the CSIR safety and security competency area, Dr Barend Taute, says that about 10 years ago the CSIR considered what could be done about crime in South Africa. They established a crime prevention centre which eventually became the ...Read more
Author:Meissner, Richard; Ramasar, VDate:Oct 2015Everyday international political economy (EIPE) offers an opportunity to rethink the role of individuals and citizenry in shaping governance of natural resources. In South Africa, significant progress has been made by government in re-shaping ...Read more
Author:Nabarro, FRNDate:Aug 2000If a stress sigma is applied to a polycrystal of grain size L, the mode of creep deformation depends on the answers to the following questions: (i) Does sigma exceed the Peierls stress sigma (p); (ii) Does L exceed the dislocation spacing in ...Read more
Author:Bolokang, Amogelang S; Mathabathe, Maria N; Motaung, DE; Arendse, CJ; Swart, HCDate:Mar 2023We report on the microstructures and properties of Ti6Al4V alloys, which were achieved upon quenching in sea water medium with potential high cooling rate. The Ti6Al4V alloys were quenched at 1000 and 1100 °C, respectively. Moreover, the ...Read more