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Grobler, Sias; Majeed, Abdul; Hayward, Roche; Rossouw, Roelof; Moola, Mohamad H.; van Wyk Kotze, Theuns (Hindawi Publishing Corporation, 2011)[more][less]
Abstract: The purpose of this study was to evaluate the efficacy of two different 10% carbamide peroxide bleaching products just after treatment and after a 6-month follow-up period. Methods. Two 10% carbamide peroxide products (Opalescence PF andNiteWhite ACP) were applied nightly for 14 days, according to the manufacturers’ instructions. The color of teeth 11 and 21 of thirty-four subjects having A2 or darker teeth were measured with a spectrophotometer (L∗; a∗; b∗) before treatment, just after treatment (14 days) and after 6 months. Results and Conclusions. Both products produced significant whitening of teeth with total color change (ΔE∗ ab) of approximately 5.20 units. There was a significant improvement in all 3 color coordinates (L∗, a∗, and b∗) for up to 6 months postbleaching (P < .05). Nite White showed a higher degree of relapse (27%) than Opalescence (18%) over the 6-month period. It is suggested that rebleaching after 6 months is not necessary URI: http://hdl.handle.net/10566/587 Files in this item: 1
GroblerClinicalStudy2011.pdf (676.3Kb) -
Bock, Zannie (John Benjamins Publishing Company, 2011)[more][less]
Abstract: This article analyses the function that code-switching plays in selected testimonies given at South Africa's Truth and Reconciliation Commission which followed the country's transition to democracy in 1994. In a number of testimonies, victims of human rights abuse under Apartheid code-switched into Afrikaans when recalling particularly offensive uses of language by the police. Within the code-switching literature, it is well recognised that a speaker's choice of code, particularly for quoted speech, is a strategy for performing different kinds of local identities which index a range of social meanings and relationships (Alvarez-Caccamo 1996, Koven 2001). Thus code-switching may serve a complex evaluative function although the meanings it generates are very context- dependent. In order to explore this role in the testimonies in this paper, I use the appraisal theory of Systemic Functional Linguistics (Martin & White 2005). I argue that on a number of occasions, code-switching into a particular variety of Afrikaans is used by testifiers as a strategy to invoke negative judgement: it has the effect of associating the police with a particular racist ideology and positioning them for our sanction. Further, it works together with other engagement resources to insert a recognisable historical voice into the text, thereby expanding the heteroglossic nature of the discourse while simultaneously allowing the speakers to signal their rejection of that voice and the ideologies it represents. In the current SFL literature, however, code-switching has not been noted as an appraisal resource. In the light of the examples from the TRC testimonies, I argue that, in multilingual contexts, code-switching has the potential to invoke complex evaluative meanings and should be included in the appraisal framework as an evaluative resource. URI: http://hdl.handle.net/10566/290 Files in this item: 1
BockCodeSwitching2011.pdf (1.395Mb) -
Field, Roger (Taylor & Francis Group, 2011)[more][less]
Abstract: Despite his international status, the impact of Constantin Cavafy’s poetry on South African letters has gone largely unnoticed. This article draws attention to the range of Cavafy's, influence on the local poets, writers, critics and cultural activists, particularly during the 1970s and 1980s, but directs most of its attention to two early short stories by Achmat Dangor, ‘The Homecoming’ and ‘Waiting for Leila’, and his most recent novel Bitter Fruit. In all of these works Dangor refers directly and indirectly to Cavafy’s poetry, his sexuality, his evocations of place and his use of Greek mythology, particularly in one of his most famous poems ‘Ithaka’. The article also addresses Dangor’s ambivalence towards Cavafy, particularly the disjuncture between Cavafy’s ironic, apolitical modernism, modernism’s appeal to Dangor, his desire to produce accessible protest literature and his need to justify recourse to the classics in Africa. URI: http://hdl.handle.net/10566/521 Files in this item: 1
FieldConstantinCavafy2011.pdf (234.1Kb) -
Hara, Mafaniso; Matose, Frank; Wilson, Doug; Raakjær, Jesper; Magole, Lapologang; Magole, Lefatshe; Demotts, Rachel; Njaya, Friday; Turner, Stephen; Buscher, Bram; Haller, Tobias; Mvula, Peter; Binauli, Lucy; Chabwela, Harry; Kapasa, Cyprian; Mhlanga, Lindah; Nyikahadzoi, Kefasi (PLAAS, University of the Western Cape, 2009)[more][less]
Abstract: This Policy Brief is based on synthetic studies undertaken by participants in the Cross Sectoral Commons Governance in Southern Africa (CROSCOG) project between 2007 and 2009, funded by the European Commission (European Commission: FP6-2002-INCO- DEV/SSA-1, contract no. 043982). The objective of the project was to share existing research and experience in the governance of large-scale natural resource commons across various ecosystem types in southern Africa. Description: This policy brief was authored by the CROSCOG (Cross Sectoral Commons Governance in Southern Africa) project team URI: http://hdl.handle.net/10566/68 Files in this item: 1
Hara_Commons2009.pdf (211.1Kb) -
Whande, Webster (PLAAS, University of the Western Cape, 2007)[more][less]
Abstract: This bibliography is aimed at collating information relating to community-based natural resource management (CBNRM) in the Southern African region across different sectors and themes. It was primarily compiled to offer material support to researchers participating in the ‘Breaking New Ground’ – People Centred Approaches to Natural Resource Management and Development Programme – a joint venture of the Centre for Applied Social Sciences, University of Zimbabwe (CASS) and the Programme for Land and Agrarian Studies, University of the Western Cape (PLAAS). It is also aimed at providing a resource to practitioners, policy- and decision-makers and researchers in southern Africa. The bibliography includes references to a variety of previously undocumented sources of information. The focus of this work, whilst including annotations on wildlife, moves beyond this traditional view of CBNRM to include other sectors. It embraces second or third generation issues ranging from the contribution of CBNRM to rural livelihoods and resource condition, to investigating policy issues around CBNRM and issues of power and authority over land and natural resources. URI: http://hdl.handle.net/10566/72 Files in this item: 1
Whande_Community2007.pdf (752.4Kb) -
Puoane, Thandi; Bradley, Hazel A. (MedPharm Publications, 2006)[more][less]
Abstract: BACKGROUND: Community health workers (CHWs) are lay people trained to assist with health care in their communities. This study took place at two sites in Khayelitsha, a township in the Cape Peninsula, from 2000 to 2002. OBJECTIVES: To describe the process of developing an intervention programme for primary prevention of noncommunicable diseases (NCDs) in general and cardiovascular disease in particular, targeting CHWs. METHOD: Forty-four CHWs were assigned to either an intervention or a control group. The intervention group, living in Site C, received training on lifestyle modification with emphasis on healthy eating and physical activity, while the control group, living in Site B, did not receive any training until a year later. The process was undertaken in four stages. Stage 1 involved assessment of the CHWs’ risk factors by obtaining anthropometric measurements. CHWs were interviewed and focus group discussions were held on the socio-cultural factors associated with body weight and body image, and barriers to physical activity. Stage 2 involved developing and implementing a training programme for primary prevention of NCDs among CHWs. Stage 3, conducted at Site C, involved a situational assessment of available resources in the community for promoting healthy lifestyles. The fourth and final stage involved the implementation of community interventions by the CHWs. RESULTS: A large percentage of CHWs were overweight and obese, and therefore at risk for NCDs. They had misconceptions about causes and treatment of these diseases, and also lacked knowledge on nutrition and the risk of high fat intake. Easy access to cheap unhealthy food, rather than fresh fruit and vegetables, limited their ability to make healthy food choices. The findings from stage 1 led to a community participatory intervention. CONCLUSIONS: Developing community-targeted interventions for NCDs can be achieved by involving CHWs at the initial stage and utilising a multifaceted approach. Education of community members and CHWs does not guarantee behaviour modification. Unless the environment encourages healthy living, NCDs will continue to be a burden in the poor populations of South Africa. URI: http://hdl.handle.net/10566/236 Files in this item: 1
PuoaneCommunityIntervention2006.pdf (301.1Kb) -
Mohamed, Nadia (South African Dental Association, 2008)[more][less]
Abstract: Objectives: The aim of this study is to compare the success rate obtained when applying either a calcium hydroxide (Dycal) base or a zinc oxide-eugenol (Kalzinol) base following the traditional ferric sulfate pulpotomy. Methods: Patients were either treated in the chair or under general anaesthesia. All teeth had to have radiographic evidence of caries close to the pulp. After haemostasis was achieved with damp cotton pellets, ferric sulfate was applied to the pulpal stumps. Half of the cases then received a Dycal base followed by a cured layer of Vitrebond and a permanent amalgam restoration. The other half of the cases received a base of zinc oxide-eugenol (Kalzinol) followed by an amalgam restoration. The cases were followed up every 6 months for one year (ie. 2 follow-up visits). Radiographs were taken at each follow-up visit. Results: Overall, teeth treated with Dycal demonstrated a higher failure rate when compared with those that received the Kalzinol base. Abscess formation and internal resorption were the most common causes of failure. Even though the Kalzinol base demonstrated greater success, there were still quite a few failures. Conclusion: This study demonstrates that calcium hydroxide cannot be recommended as a medicament in primary tooth pulpotomies. URI: http://hdl.handle.net/10566/415 Files in this item: 1
MohamedPulpotomy2008.pdf (904.0Kb) -
Sivakumar, Pasupathi; Maiyalagan, Thandavarayan (Trans Tech Publications, 2010)[more][less]
Abstract: Fuel cells, as devices for direct conversion of the chemical energy of a fuel into electricity by electrochemical reactions, are among the key enabling technologies for the transition to a hydrogen-based economy. Among the various types of fuel cells, polymer electrolyte membrane fuel cells (PEMFCs) are considered to be at the forefront for commercialization for portable and transportation applications because of their high energy conversion efficiency and low pollutant emission. Cost and durability of PEMFCs are the two major challenges that need to be addressed to facilitate their commercialization. The properties of the membrane electrode assembly (MEA) have a direct impact on both cost and durability of a PEMFC. An overview is presented on the key components of the PEMFC MEA. The success of the MEA and thereby PEMFC technology is believed to depend largely on two key materials: the membrane and the electro-catalyst. These two key materials are directly linked to the major challenges faced in PEMFC, namely, the performance, and cost. Concerted efforts are conducted globally for the past couple of decades to address these challenges. This chapter aims to provide the reader an overview of the major research findings to date on the key components of a PEMFC MEA. URI: http://hdl.handle.net/10566/166 Files in this item: 1
MaiyalaganPasupathi2010.pdf (1.330Mb) -
Conradie, Ernst (Stellenbosch University, 2010)[more][less]
Abstract: This contribution explores the significance but also the immense complexities of Christian discourse on confessing guilt within the context of climate change. It draws especially on South African discourse on confessing guilt in the context of apartheid. The argument of the essay is twofold: Christians with an enduring large carbon footprint may wish to confess their guilt in this regard, but typically find it difficult to live from God’s liberating forgiveness and are therefore prone to rather desperate efforts to save the world themselves. By contrast, Christians with a small carbon footprint may opt for alternative understanding of salvation, namely in terms of redemption from the looming threat of climate change. URI: http://hdl.handle.net/10566/456 Files in this item: 1
ConradieConfessingGuilt2010.pdf (126.6Kb) -
Tucker, William D. (ACM, 2004)[more][less]
Abstract: Connecting people across the Digital Divide is as much a social effort as a technological one. We are developing a community-centered approach to learn how interaction techniques can compensate for poor communication across the Digital Divide. Preliminary trials have yielded interfaces that deal with poor quality by adapting Instant Messaging techniques for multiple modalities, providing improved semi-synchronous communication. Lessons learned suggest new ways to design user interfaces specifically for the developing world. URI: http://hdl.handle.net/10566/591 Files in this item: 1
Tucker-CHI2004.pdf (81.56Kb) -
du Toit, Francois (Juta Law, 2009)[more][less]
Abstract: This article traces the development of the constitutional family in the South African law of succession through a synopsis of Constitutional Court and High Court judgments on the application of the Intestate Succession Act and the Maintenance of Surviving Spouses Act beyond the confines of the traditional conception of 'family'. It also investigates significant legislative developments that impacted on the establishment of the constitutional family in the South African law of succession. URI: http://hdl.handle.net/10566/238 Files in this item: 1
DuToitConstitutionalFamily2009.pdf (195.4Kb) -
du Toit, Francois (Juta, 2001)[more][less]
Abstract: This article analyses critically the impact of constitutionalism on freedom of testation and its limitation in South African law. It proposes the judicial utilisation of a 'constitutionally-founded boni mores criterion' in addressing particularly testamentary forfeiture clauses and charitable testamentary bequests. URI: http://hdl.handle.net/10566/230 Files in this item: 1
Stell LR 2001.pdf (18.56Mb) -
Bock, Zannie (Academia Press, 2009)[more][less]
Abstract: In this paper, I analyse the testimony of Colin de Souza given before South Africa's Truth and Reconciliation Commission (TRC) in the mid-1990s.1 My aim is to explore how De Souza projects an identity of himself as 'agentive', as an innovative and flexible individual who is capable of outwitting and outmaneuvering his opponents despite the fact that within the TRC context, he is positioned as a 'victim' of human rights abuse. To substantiate this argument, I use a number of Systemic Functional Linguistic (SFL) tools to analyse the way in which this agency is encoded in the language of the testimony. URI: http://hdl.handle.net/10566/281 Files in this item: 1
Bock_Construals2009.pdf (577.8Kb) -
Sithole, Jabulani (Univ. of KwaZulu-Natal) (Published by History Dept, University of the Western Cape, 2009)[more][less]
Abstract: The key characteristic of the vast amount of literature on the South African workers ʼ movement in the post-1973 period is the denial that the class and national struggles were closely intertwined. This denial is underpinned by a strong ʻantinationalist currentʼ which dismisses the national liberation struggle as ʻpopulist and nationalistʼ and therefore antithetical to socialism. This article cautions against uncritical endorsement of these views. It argues that they are the work of partisan and intolerant commentators who have dominated the South African academy since the 1970s and who have a tendency to suppress all versions of labour history which highlight these linkages in favour of those which portray national liberation and socialism as antinomies. The article also points out that these commentators use history to mobilise support for their rigidly held ideological positions and to wage current political struggles under the pretext of advancing objective academic arguments. URI: http://hdl.handle.net/10566/104 Files in this item: 1
SitholeContestations2009.pdf (184.4Kb) -
Greenberg, Stephen (Institute for Poverty, Land and Agrarian Studies, University of the Western Cape, 2010)[more][less]
Abstract: This report widens the debate about food production and distribution in South Africa to consider some of the entrenched power dynamics that shape the way these happen, and to consider whether a more radical transformation of the agro-food system is required to ensure adequate access to food for all.It considers the structure of the South African agro-food system, and looks at points of possible intervention that could not only open the system to greater involvement by those who have been marginalised or passively incorporated into that system, but that also offer potential pathways to structural change that could deepen diversity in the agro-food system and reorient it to the needs of the poor, both as historically subordinated producers and as consumers. URI: http://hdl.handle.net/10566/572 Files in this item: 1
RR42.pdf (1.218Mb) -
Raji, Ismaila; Mugabo, Pierre; Obikeze, Kenechukwu (BioMed Central, 2013)[more][less]
Abstract: Background: Tulbaghia violacea Harv. (Alliaceae) is used to treat various ailments, including hypertension (HTN) in South Africa. This study aims to evaluate the contributions of muscarinic receptors and changes in plasma aldosterone levels to its anti-hypertensive effect. Methods: In the acute experiments, methanol leaf extracts (MLE) of T. violacea (30–120 mg/kg), muscarine (0.16 -10 μg/kg), and atropine (0.02 - 20.48 mg/kg), and/or the vehicle (dimethylsulfoxide (DMSO) and normal saline (NS)) were respectively and randomly administered intravenously in a group of spontaneously hypertensive (SHR) weighing 300 to 350 g and aged less than 5 months. Subsequently, T. violacea (60 mg/kg) or muscarine (2.5 μg/kg) was infused into eight SHRs, 20 min after atropine (5.12 mg/kg) pre-treatment. In the chronic (21 days) experiments, the SHRs were randomly divided into three groups, and given the vehicle (0.2 ml/day of DMSO and NS), T. violacea (60 mg/kg/day) and captopril (10 mg/kg/day) respectively into the peritoneum, to investigate their effects on blood pressure (BP), heart rate (HR), and plasma aldosterone levels. Systolic BP and HR were measured using tail-cuff plethysmography during the intervention. BP and HR were measured via a pressure transducer connecting the femoral artery and the Powerlab at the end of each intervention in the acute experiment; and on day 22 in the chronic experiment. Results: In the acute experiments, T. violacea, muscarine, and atropine significantly (p < 0.05) reduced BP dose-dependently. T. violacea and muscarine produced dose-dependent decreases in HR, while the effect of atropine on HR varied. After atropine pre-treatment, dose-dependent increases in BP and HR were observed with T. violacea; while the BP and HR effects of muscarine were nullified. In the chronic experiments, the T. violaceatreated and captropril-treated groups had signicantly lower levels of aldosterone in plasma when compared to vehicle-treated group. Compared to the vehicle-treated group, significant reduction in BP was only seen in the captopril-treated group; while no difference in HR was observed among the groups. Conclusion: The results obtained in this study suggest that stimulation of the muscarinic receptors and a reduction in plasma aldosterone levels contribute to the anti-hypertesive effect of T. violacea. URI: http://hdl.handle.net/10566/600 Files in this item: 1
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Coetzee, Helena; Skelly, Lara (Ashgate Publishing, 2008)[more][less]
Abstract: In 2006 the National Library of South Africa (NLSA), Cape Town Campus, began a project to convert its substantial card catalogue to machine-readable form. The article gives an overview of the Library's collections and catalogue and describes the project methodology. Funding was secured from the Carnegie Corporation of New York, and an in-house team appointed to begin the conversion. In order to meet project deadlines, the work of the in-house team was later supplemented by outsourcing the entry of records into the online catalogue. With the successful completion of the project, NLSA has been able to offer Internet access to many rare publications, whose whereabouts have previously been little known, and a significant contribution has been made to the bibliographic control of South African imprints. URI: http://hdl.handle.net/10566/514 Files in this item: 1
CoetzeeCardCatalogueConversion2008.pdf (191.1Kb) -
du Toit, Francois (Elsevier, 2013)[more][less]
Abstract: This article examines the fundamental rule of South African trust law that co-trustees must always act jointly in regard to trust administration. It highlights the rule's foundation, but also contextualizes some of the practical problems associated with the rule's operation. In particular, the article focuses on South African courts' treatment of the joint-action rule, and shows that judicial engagement with the rule has not been satisfactory in all respects. The article casts some light on possible future developments in regard to co-trusteeship in South African law. URI: http://hdl.handle.net/10566/620 Files in this item: 2
duToitCo-trustees2013.pdf (113.6Kb)DuToitCo-trusteeship2013.pdf (216.6Kb) -
Wakefield, Lorenzo (Queens University, Belfast School of Law, 2011)[more][less]
Abstract: Article 40 of the United Nations Convention on the Rights of the Child1 requires states parties to take appropriate measures to ensure that children accused of committing offences are treated in a manner that would ensure that their best interests are upheld. South Africa2 ratified the CRC in 1995, the provisions of which have influenced the children’s rights clause in its 1996 Constitution. Section 28(1)(g) of the Constitution stipulates that children may not be detained, except as a measure of last resort and, should they be detained, it should be for the shortest appropriate period of time. Section 28(1)(g) goes further to give domestic effect to the following guarantees stipulated in Article 40 of the CRC: (1) the right to be treated in a manner, and kept in conditions, that take account of the child’s age; and (2) to have a legal practitioner assigned to the child. Recently, SA has enacted its Child Justice Act 75 of 2008, which came into operation on 1 April 2010. The question to be covered in this article is whether this Act truly complies with the international standards set by the CRC (15 years after SA ratified it); the general comments by the United Nations Committee on the Rights of the Child 3 and other non-binding, yet persuasive instruments like the Standard Minimum Rules on the Administration of Juvenile Justice and the United Nations Rules for the Protection of Juveniles Deprived of their Liberty. This article only examines four aspects of the Child Justice Act, being: criminal capacity; pretrial release and detention; diversion; and sentencing. It concludes that, but for a few technical aspects of the Child Justice Act, SA took significant steps to comply with its international obligations when it domesticated the CRC in relation to children who commit offences. URI: http://hdl.handle.net/10566/598 Files in this item: 1
WakefiledChildJusticeAct2011.pdf (228.2Kb) -
Bock, Zannie; Dadlana, Phakamani (University of Stellenbosch, 2002)[more][less]
Abstract: This article aims to characterize typical linguistic and discourse features of academic writing in Xhosa and English among prospective Xhosa-speaking students at the University of the Western Cape so as to account for strengths and weaknesses in the writing and provide possible ‘points’ for pedagogic intervention. It presents an analysis of a sample of entrance essays written by these students in English and Xhosa. The analysis is in terms of a framework which considers aspects of argument, register and syntax. It aims to highlight strengths and weaknesses in student writing and to ascertain the extent to which these characteristics are language-specific or cross-linguistic. The results of the analysis suggest that the ability to argue coherently in an appropriate register is the defining mark of good writing in any language, and that control over the syntax of the language is particularly important for these students when writing in English. The ability to write well, like certain aspects of style, seems to be a generic ability and affects students’ performance in both languages. URI: http://dx.doi.org /10.5785/18-1-8 Files in this item: 1
Bock_cross-linguistic2002.pdf (243.5Kb)