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- ItemMetadata onlyBiooxidation kinetics of Leptospirillum ferriphilum under heap bioleach conditions(Metallurgy and Exploration Inc, 2008) Ojumu, T V; Harrison, S T L; Hansford, G S; Petersen, JAlthough the kinetics of biological oxidation of ferrous to ferric iron–the key step in any bioleaching process–have been studied for a variety of organisms, the focus has always been on conditions typical of tank-bioleaching. In heaps, parameters such as pH and temperature vary widely across the heap and are usually far from optimal. Total iron concentrations are usually much lower than the tanks(except in gold heaps), and the presence of dissolved gangue mineral is usually much more significant.
- ItemOpen AccessThe challenge of teaching large classes in higher education in South Africa : a battle to be waged outside the classroom(SUN MeDIA MeTRO, 2013) Jawitz, Jeff; Hornsby, David J; Osman, Ruksana; De Matos-ala, JacquelineIn this chapter, I explore the size and discipline of the largest classes offered at two higher education institutions in South Africa and based on the evidence at four institutions make the case that large classes is a minority phenomenon with less than 28% of courses offered having more than 100 students registered. I suggest that large classes offer unique opportunities for delivering the quality learning experience we wish for our students. However, taking advantage of these opportunities require significant planning, support and expertise. I also discuss current practices that undermine the efforts of individual lecturers to achieve effective learning in their large classes.
- ItemRestrictedContemporary issues in political party funding and sustainability(Fanele (Jacana Media Pty Ltd), 2015) Butler, Anthony; Fakir, Ebrahim; Lodge, TomIt is sometimes argued that political funding in Africa has a distinctive character. Some scholars claim that a particular form of party–state linkage may be prevalent across Africa in which parties amass money from the state through patronage, clientelistic practices and political corruption (Van Biezen and Kopecky 2007; Basedau et al. 2007). The exploration of non-African cases, however, can help illuminate the common patterns that exist across a wider range of societies. In this way it can shed light on African political financing practices. The pathologies surrounding political finance in many African states, such as clientelism, influence-buying and corruption, are important aspects of political life across the developing world – and also, one might add, in the states of the north.
- ItemMetadata onlyIndustrial Crystallization: Fundamentals and Applications(Cambridge University Press, 2015-07-01) Lewis, Alison Emslie; Seckler, Marcelo; Kramer, Herman; Rosmalen, GerdaBridging the gap between theory and practice, this text provides the reader with a comprehensive overview of industrial crystallization. Newcomers will learn all of the most important topics in industrial crystallization, from key concepts and basic theory to industrial practices. Topics covered include the characterization of a crystalline product and the basic process design for crystallization, as well as batch crystallization, measurement techniques, and details on precipitation, melt crystallization and polymorphism. Each chapter begins with an introduction explaining the importance of the topic, and is supported by homework problems and worked examples. Real world case studies are also provided, as well as new industry-relevant information, making this is an ideal resource for industry practitioners, students, and researchers in the fields of industrial crystallization, separation processes, particle synthesis, and particle technology.
- ItemMetadata onlyLocal Government in South Africa: Political Decentralisation, Party Centralisation, Corruption and Maladministration(Almqvist & Wiksell, 2003) Cameron, Robert; Hadenius, AxelThis study focuses on local governance in South Africa with respect to corruption, clientelism and mismanagement. The objective is to examine the local government system to see to what extent corruption, clientelism and mismanagement exist. It also looks at the strategies and reforms that are in place for combating such misconduct. Two case studies were used for the purposes of this study, one in DA-controlled Cape Town and the other in ANC-controlled Ekurhuleni. Arising out of these case studies, some generalisations are made about the prospects of controlling such corruption and misadministration at local level. The first part of this inquiry provides a theoretical framework for decentralisation. The main forms of decentralisation, along with its advantages and disadvantages, are discussed. The role of party politics is also examined. The next section traces the history of local government in South Africa and provides an overview of the current system. It looks at the role of the two major political parties in South Africa, namely the African National Congress (ANC) and Democratic Alliance (DA), in local government.
- ItemMetadata onlyMetropolitan Government Reform: The limits of formal organisation(Les Presses de l'Universite Laval, 2007) Cameron, Robert; Collin, Jean-Pierre; Robertson, MelanieIn a previous article, Cameron traced the evolution of metropolitan government in South Africa largely within the context of Public Administration reform in the country. Issues such as performance and efficiency were highlighted. This chapter is also an account of the development of metropolitan governance in South Africa but it has a somewhat wider focus. It attempts to locate metropolitan government reform in South Africa within the broader international debate of the merits of consolidation versus that of fragmentation. The policy changes from a fragmented system of local government to a two-tier metropolitan system and then to a unitary metropolitan government system within a relatively short period of time are discussed. The chapter also shows chat metropolitan government reform was part of a wider decentralization program of national government. Empowered local government was now responsible for promoting social and economic development and improving service delivery. Public participation was a key aspect of these reforms. Metropolitan government had to promote development but at the same time it also had to attempt to try and make cities globally competitive.
- ItemOpen AccessMonitoring the worst forms of child labour, trafficking and child commercial sexual exploitation(HSRC Press, 2007) Cluver, Lucy; Bray, Rachel; Dawes, Andrew
- ItemMetadata onlyThe Moral Economy of AIDS in South Africa(Cambridge University Press, 2004) Nattrass, NicoliRelatively few people have access to antiretroviral treatment in South Africa. The government justifies this on grounds of affordability.Nicoli Nattrass argues that the government's view insulates AIDS policy from social discussion and efforts to fund large-scale intervention. Nattrass addresses South Africa's contentious AIDS policy from both an economic and ethical perspective, presenting: • a history of AIDS policy in South Africa • an expert analysis of the macroeconomic impact of AIDS • a delineation of the relationship between AIDS and poverty and the challenges it poses for development, inequality and social solidarity • an investigation into how a programme preventing mother-to-child transmission would be less expensive than having to treat children with AIDS-related illnesses • an exploration of the relationship between AIDS treatment and risky sexual behaviour • an economic and social case for expanded AIDS prevention and treatment intervention. This relevant and accessible work is a valuable resource for readers with an interest in AIDS policy and the social and economic implications of the pandemic.
- ItemMetadata onlyMortal Combat: AIDS denialism and the struggle for antiretrovirals in South Africa(University of KwaZulu-Natal Press, 2007) Nattrass, NicoliMortal Combat is a history of AIDS policy in South Africa. It exposes the strategy and tactics of AIDS denialists and focuses on the struggle for antiretrovirals to prevent mother-to-child transmission of HIV and to extend the lives of people living with AIDS.
- ItemRestrictedNumber Agreement in English and Xhosa(Oxford University Press, 2007) de Villiers, Jill; College, Smith; Gxilishe, SandileIn this paper we seek to raise questions about the nature of number agreement in the grammars of young children, whether they are learning languages poor in number agreement (African American English (AAE)), relatively simple (Mainstream American English (MAE)) or inherently complex (Xhosa). At first glance, number agreement appears to be a straightforward mechanism, but that mechanism is called into question by peculiar asymmetries of production and comprehension that demand more explanation and exploration. These findings must necessarily be regarded as preliminary, and some studies are still underway to answer the next questions.
- ItemMetadata only'Working with spirit': Experiencing Izingoma healing in contemporary South Africa(Berghahn Books, 2008) Wreford, JoIn the current model of health dispensation in South Africa there are two major paradigms, the spirit-inspired tradition of izangoma sinyanga and biomedicine. These operate at best in parallel, but more often than not are at odds with one another. This book, based on the author's personal experience as a practitioner of traditional African medicine, considers the effects of the absence of spirit in biomedicine on collaborative relationships. Given the unprecedented challenge of the HIV/AIDS epidemic in the country, the author suggests that more cooperation is vital. Taking a critical look at the role of anthropology in this endeavor, she proposes the development of a "language of spirit" by means of which the spirit-inspired aetiology of izangoma sinyanga may be made comprehensible to academic scientists and applicable to medical interventions. The author discusses white izangoma in the context of current debates on healing and hybridity and insists that there exists a powerful role for izangoma in the realm of societal healing. Above all, the book constitutes a start in what the author hopes will develop into an ongoing intellectual conversation between traditional African healing, academe, and biomedicine in South Africa. Jo Thobeka Wreford accepted a community architectural post in Zimbabwe in 1992, where she met the Xhosa healer with whom, in 2001, she graduated as a sangoma. She now divides her time between her healing practice and research in sangoma and HIV/AIDS at the University of Cape Town. In 2004 she was awarded a Research Scholarship with the AIDS and Society Research Unit (ASRU), Centre for Social Science Research (CSSR) at the University of Cape Town.