Author:London, GM; Mayosi, BM; Khati, MDate:Jan 2015Aptamers, which are artificial nucleic acid ligands akin to antibodies in function, represent a new class of molecules that can prevent HIV infection. In this study, we isolated RNA aptamers against whole HV-1CAP45 enveloped pseudotyped virus, ...Read more
Author:Pillay, P; Vleggaar, R; Maharaj, VJ; Smith, PJ; Lategan, CADate:May 2007Oncosiphon piluliferum (Asteraceae) is used traditionally to treat a variety of ailments, mainly fevers. This prompted the screening of this plant for antiplasmodial properties. The dichloromethane extract of the aerial parts of the plant ...Read more
Author:Nyigo, VA; Peter, Xolani K; Mabiki, F; Malebo, HM; Mdegela, RH; Fouché, GerdaDate:Jun 2016Purification of dichloromethane extract from root barks and leaves of Synadenium glaucescens respectively resulted into the isolation of two compounds namely Euphol and ß-sitosterol. Chemical structures were established mainly by using (sup1)H ...Read more
Author:Edward, VA; Egounlety, M; Huch, M; Van Zyl, PJ; Singh, S; Nesengani, ND; Haakuria, VM; Franz, CMAPDate:Aug 2012Cassava (Manihot esculenta Crantz), is used for the production of a variety of West African foods and ranks fourth in the list of major crops in developing countries after rice, wheat and maize. Gari is one of the most popular foods produced ...Read more
Author:Lalloo, Rajesh; Ramchuran, Santosh O; Ramduth, DM; Gorgens, JDate:Feb 2007Natural isolates obtained from mud sediment and Cyprinus carpio were purified and assessed in vitro for efficacy based on the inhibi-tion of growth of pathogenic Aeromonas hydrophila and the decrease in concentrations of ammonium, nitrite, ...Read more
Author:Setshedi, I; Peter, Xolani K; Fouché, Gerda; Myer, M; Dewar, JDate:01 Sep 2010The genus Sceletium is classified as part of the Family Mesembryanthemaceae and belongs to the sub-family Mesembryanthemoideae. Some of the names used when referring to this genus are ‘living skeletons’ or ‘skeleton plants’ (http://ujdigisp ...Read more
Author:Adewusi, EA; Steenkamp, P; Fouché, Gerda; Steenkamp, VDate:Jun 2013Boophone disticha (Amaryllidaceae) is widely used in traditional medicine in southern Africa. Several alkaloids, volatile oils and fatty acids have been isolated from the plant. However, there has been no literature report of a triterpene ...Read more
Author:Simpson, C; Jordaan, J; Whiteley, C; Gardiner, NSDate:Feb 2007A novel glucose oxidase (GOX), a Xavoenzyme, from Penicillium sp. was isolated, purified and partially characterised. Maximum activities of 1.08Umg‾1dry weight intracellular and 6.9Uml‾1 extracellular GOX were obtained. Isoelectric focussing ...Read more
Author:Adeleke, Oluwatoyin A; Tsai, P; Karry, KM; Monama, Nkwe O; Michniak-Kohn, BBDate:Aug 2021Drug treatment remains the most effective global approach to managing and preventing tuberculosis. This work focuses on formulating and evaluating an optimized polyvinyl alcohol-polyethylene glycol based orodispersible strip containing ...Read more
Author:Nyadongo, ST; Pityana, Sisa L; Olakanmi, EODate:Jul 2021It is anticipated that laser cladding assisted with preheat (LCAP)-deposited Tribaloy (T-800) composite coatings enhances resistance to structural degradation upon exposure to elevated-temperature oxidation service environments. The oxidation ...Read more
Author:Smart, SM; Fawcett, SE; Thomalla, Sandy J; Weigand, MA; Reason, CJC; Sigman, DMDate:Apr 2015We report wintertime nitrogen and oxygen isotope ratios (δ15N and δ18O) of seawater nitrate in the Southern Ocean south of Africa. Depth profile and underway surface samples collected in July 2012 extend from the subtropics to just beyond the ...Read more
Author:Harmer, RE; Farrow, DDate:Apr 1995Many geochronological studies on silicic magmatic rocks associated with the Bushveld Complex (rhyolitic lavas of the Rooiberg Group and granites of the Lebowa Granite Suite) have shown evidence of open-system behaviour of the Rb-Sr and Pb-Pb ...Read more
Author:Heyl, L; Von Maltitz, Graham P; Evans, J; Segoale, RDate:2000The softwood sawmilling industry processes approximately 4.1 million m3 of pine logs every year. Small-scale sawmillers which account for 67% of the total number of establishments process only about 11% of the annual log intake. The major ...Read more
Author:Chikwamba, Rachel KDate:29 Sep 2006The presentation outlines the global status of food security and implications for meeting the Millennium Development Goals targets, with particular focus on Sub-Saharan Africa; trends in hunger, food availability, food distribution, consumption; ...Read more
Author:Helbig, M; Engelbrecht, APDate:Jun 2013In recent years a number of algorithms were proposed to solve dynamic multi-objective optimisation problems. However, a major problem in the field of dynamic multi-objective optimisation is a lack of standard performance measures to quantify ...Read more
Author:Van Zyl, TL; Parbhoo, C; Moodley, D; Cwela, B; Umuhoza, D; Shabangu, P; Vahed, AnwarDate:May 2009The paper focuses on the information technology infrastructure required for the evaluation and monitoring of risk relating to floods in South Africa. It may be argued that in the context of developing countries, flood preparedness is more ...Read more
Author:Oosthuizen, R; Matooane, M; Wright, C; Phala, NDate:Aug 2012The West Rand is part of the Gauteng Province and is surrounded by mining activities. There have been several media and scientific reports about acid mine drainage (AMD) in this area. However, AMD is not the only environmental problem faced ...Read more
Author:Van Deventer, Heidi; Apleni, PhilaniDate:Jun 2021This poster is related to the WRC 427 project and consists of two A0 posters. The first page shows the knowledge of wetlands we currently have, recognising that there are different wetland types. We are concerned about the degradation and ...Read more
Author:Malatji, Tsholofelo MDate:Sep 2017Infrared (IR) guided missiles remain a threat to both military and civilian aircraft, and as such, the development of effective countermeasures against this threat remains vital. A simulation has been developed to assess the effectiveness of ...Read more