Author:MacPhail, C; Campbell, CDate:Jun 2001Levels of heterosexually transmitted HIV infection are high amongst South African youth, with one recent survey reporting levels of 18.9% amongst 17-20 year olds and 43.1% amongst 21-25 year olds. In these groups levels of knowledge about HIV ...Read more
Author:Murambadoro, MDate:May 2013An integrated and coordinated agrarian land use decision making tool - ICAD for short – was launched recently. Developed by the Council for Scientific and Industrial Research, Univen’s Institute for Rural Development, the Nkuzi Development ...Read more
Author:Leyland, RC; Momayez, M; Van Rooy, JLDate:Mar 2016The Karoo Supergroup covers approximately 57% of South Africa’s surface area and the sedimentary rocks therein generally do not yield acceptable pavement aggregates. The Karoo Dolerite Suite (intrusions) present in these sedimentary units ...Read more
Author:Steenkamp, PA; Harding, NM; Van Heerden, FR; Van Wyk, BEDate:Nov 2006An LC-MS screening method was developed to detect the presence of atractyloside (ATR), the toxic principle of a commonly used medicinal plant in South Africa, Callilepis laureola, in biological matrices such as body fluids and human viscera. ...Read more
Author:Khoza, BS; Gbashi, S; Steenkamp, Paul A; Njobe, PB; Madala, NEDate:Mar 2016Bidens pilosa is a medicinal plant used for the treatment of several physiological illnesses. In South Africa, as the case may be for other African countries, this plant is equally consumed as a vegetable. In the current study, pressurized ...Read more
Author:Ramnath, L; Sithole, Bishop B; Govinden, RDate:Sep 2017This study highlights the importance of determining substrate specificity at variable experimental conditions. Lipases and esterases were isolated from microorganisms cultivated from Eucalyptus wood species and then concentrated (cellulases ...Read more
Author:Raseleka, RM; Human, HGCDate:2004An electro thermal vaporizer (ETV) coupled to a time-of-flight mass spectrometer (TOF-MS) with laser ionization (LI) was applied to the identification of molecules from sulphur and chlorine matrices in the furnace. An interface was developed ...Read more
Author:Njobeh, PB; Dutton, MF; Chuturgoon, AA; Koch, SH; Steenkamp, PA; Stoev, SDDate:Jun 2009A novel metabolite of P. polonicum was recently isolated from Cameroonian Zea mays by means of preparative silica gel thin layer chromatographic method. The potential cytotoxic effects of this novel compound was further tested, in vitro, ...Read more
Author:Barros, E; Verryn, S; Hettasch, MDate:Jul 2002Wood splitting is a defect in eucalyptus which results in considerable losses when converting logs to solid wood products. Commonly in forestry, molecular markers are identified through studying pedigrees from a single cross. This limits the ...Read more
Author:Oberholster, Paul J; Myburgh, JG; Govender, D; Bengis, R; Botha, A-MDate:2009The eutrophic process potentially caused by a high urine and faecal load resulting from an unusually high hippopotamus (Hippopotamus amphibious) density in the Nhlanganzwane Dam, Kruger National Park, South Africa, triggered a chain of events ...Read more
Author:Viren Chunilall, Viren; Sithole, Bishop B; Ramjugernath, D; Tamrat, TDate:Mar 2019Chicken feathers were separated into barb and rachis fractions and subject to analytical pyrolysis at 550°C in order to identify the protein degradation products and potential toxic compounds that could arise. Under these conditions, cyanide ...Read more
Author:Goliger, Adam M; Retief, RVDate:Nov 2002This paper summarises the initial stage of development of a wind damage/disaster risk model for South Africa. The aim is to identify the generic zones of various types of strong wind events. The extent of these zones will form the basis for ...Read more
Author:Shackleton, RT; Le Maitre, David C; Van Wilgen, BW; Richardson, DMDate:May 2016Biological invasions are a major driver of ecological and social change globally. The negative effects of these invasions have led to the initiation of programs to manage these invasions across the world. Management aims to reduce impacts and ...Read more
Author:Ntshotsho, Phumza; Esler, KJ; Reyers, BDate:Nov 2015Global acknowledgement of ecological restoration, as an important tool to complement conservation efforts, requires an effort to increase the effectiveness of restoration interventions. Evidence-based practice is purported to promote ...Read more
Author:Willemen, L; Crossman, ND; Quatrini, S; Egoh, Benis N; Kalaba, FKDate:Jun 2017Land degradation response actions need motivated stakeholders and investments to improve land management. In this study we present methods to prioritise locations for degradation mitigation investments based on stakeholder preferences for ...Read more
Author:Iyawa, GE; Herselman, Martha E; Botha, AdèleDate:2017The concept of digital health innovation ecosystems is an emerging body of literature which suggests that components of digital health, innovation and digital ecosystems are important in the administration and delivery of healthcare services. ...Read more
Author:Fairbanks, DHK; Benn, GADate:30 Aug 2000The application of landscape ecology in conservation biology has rarely occurred in the context of defined landscapes. Conservation planning has focussed on representation of species diversity patterns and assumed that ecosystems, landscapes ...Read more
Author:Van Schoor, Michael; Fourie, CJSDate:Jul 2008Ground penetrating radar (GPR) and electrical resistance tomography (ERT) surveys were conducted in an urban environment in an attempt to identify the cause of severe structural damage to a historically significant residential property in ...Read more
Author:Geldasa, FT; Kebede, Mesfin A; Shura, MW; Hone, FGDate:Feb 2022Among the existing commercial cathodes, Ni-rich NCM are the most promising candidates for next-generation LIBs because of their high energy density, relatively good rate capability, and reasonable cycling performance. However, the surface ...Read more
Author:Louvel, S; Moodley, N; Seibert, I; Steenkamp, P; Nthambeleni, R; Vidal, V; Maharaj, V; Klimkait, TDate:May 2013As Alepidea amatymbica is commonly used and accepted asmedicinal plant in South Africa for various indications, the scientific basis of its anecdotally described, putative anti-HIV propertieswas investigated. To this aim, we used an accelerated ...Read more