Limiting vulnerability exposure through effective patch management: threat mitigation through vulnerability remediation
- Authors: White, Dominic Stjohn Dolin
- Date: 2007 , 2007-02-08
- Subjects: Computer networks -- Security measures , Computer viruses , Computer security
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4629 , http://hdl.handle.net/10962/d1006510 , Computer networks -- Security measures , Computer viruses , Computer security
- Description: This document aims to provide a complete discussion on vulnerability and patch management. The first chapters look at the trends relating to vulnerabilities, exploits, attacks and patches. These trends describe the drivers of patch and vulnerability management and situate the discussion in the current security climate. The following chapters then aim to present both policy and technical solutions to the problem. The policies described lay out a comprehensive set of steps that can be followed by any organisation to implement their own patch management policy, including practical advice on integration with other policies, managing risk, identifying vulnerability, strategies for reducing downtime and generating metrics to measure progress. Having covered the steps that can be taken by users, a strategy describing how best a vendor should implement a related patch release policy is provided. An argument is made that current monthly patch release schedules are inadequate to allow users to most effectively and timeously mitigate vulnerabilities. The final chapters discuss the technical aspect of automating parts of the policies described. In particular the concept of 'defense in depth' is used to discuss additional strategies for 'buying time' during the patch process. The document then goes on to conclude that in the face of increasing malicious activity and more complex patching, solid frameworks such as those provided in this document are required to ensure an organisation can fully manage the patching process. However, more research is required to fully understand vulnerabilities and exploits. In particular more attention must be paid to threats, as little work as been done to fully understand threat-agent capabilities and activities from a day to day basis. , TeX output 2007.02.08:2212 , Adobe Acrobat 9.51 Paper Capture Plug-in
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- Date Issued: 2007
Local food choices and nutrition : a case study of amarewu in the FET consumer studies curriculum
- Authors: Kota, Lutho Siyabulela
- Date: 2007
- Subjects: Continuing education -- South Africa -- Eastern Cape -- Curricula Education -- South Africa -- Eastern Cape -- Curricula Ethnoscience -- South Africa -- Eastern Cape Indigenous peoples -- Study and teaching -- South Africa -- Eastern Cape Nutrition -- Study and teaching -- South Africa--Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1666 , http://hdl.handle.net/10962/d1003549
- Description: This case study examines the introduction of Indigenous Knowledge (IK) in the Consumer Studies curriculum of Further Education and Training (FET). The research is centred on the use of enquiry methodologies involving learners observing parent demonstrations of the making of ‘amarewu’ and other activities centred on the propositional knowledge dealing with fermentation in the Consumer Studies curriculum. The research involved a review of curriculum documents, participant observation of a demonstration of local food practices related to ‘amarewu’ and learner research activities and interviews to review the developing learning interactions. The learning activities were focused on the learners’ researching the cultural and nutritional value of ‘amarewu’ and included an audit of food consumed in the community. What transpired from this study was that working with IK in the curriculum is possible. The inclusion of IK is not only possible but desirable and has exciting possibilities for relevance in contemporary education. The active involvement in parent demonstration engaged the learners in IK in their mother tongue, therefore indigenous knowledge has relevance. The curriculum concepts also enhanced the engagement by giving rise to more relevant knowledge and a respect for cultural matters. Intergenerational capital and subject concepts also enabled learners to engage with local nutritional problems and to come up with practical solutions. This study demonstrates how IK intergenerational capital in combination in combination with curriculum concepts (subject knowledge capital) can enhance relevance and the learners’ real engagement with local health and nutritional problems. Not only did the learners have culturally valued knowledge, but also knowledge that has a practical grasp of the problem and that they could use to engage relevant issues. These two views of knowledge join in learning and can be used to address health issues. I therefore recommend connection of cultural knowledge and conceptual knowledge to strengthen the revitalisation of cultural heritage, thus equalising it to the modern patterns of life and enhancing meaningful curriculum orientation.
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- Date Issued: 2007
Localisation of Theiler's Murine Encephalomyelitis virus non-structural proteins 2B, 2C, 2BC and 3A in BHK-21 cells, and the effect of amino acid substitutions in 2C on localisation and virus replication
- Authors: Murray, Lindsay
- Date: 2007
- Subjects: Encephalomyelitis -- Genetic aspects , Amino acid sequence , Picornaviruses , Viruses -- Reproduction
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4090 , http://hdl.handle.net/10962/d1007722 , Encephalomyelitis -- Genetic aspects , Amino acid sequence , Picornaviruses , Viruses -- Reproduction
- Description: The picornavirus family includes significant human and animal viruses such as poliovirus (PV), human rhinovirus (HRV) and foot-and-mouth-disease virus (FMDV). Current disease treatment and control strategies are limited by an incomplete understanding of the interactions between the non-structural, replicative picornavirus proteins and host cell components. To investigate these interactions, Theiler's murine encephalomyelitis virus (TMEV) 2B, 2C, 2BC and 3A proteins were transiently expressed in BHK-21 cells and detected by indirect immunostaining and laser-scanning or epifluorescence microscopy. The signal of the 2B protein overlapped with that of the ER marker protein, ERp60, as well as that of the peripheral Golgi marker protein, β-COP. The 2C protein overlapped with ERp60 in a faint reticular stain, and localised to large punctate structures that partially overlapped with β-COP at higher levels of expression. The 2BC protein located to large perinuclear structures that overlapped exclusively with β-COP. The TMEV 3A protein signal overlapped with both ERp60 and β-COP stains, in addition in cells expressing the 3A protein the ER appeared swollen and bulbous while the Golgi was dispersed in some cells. 2C and 2BC proteins with C-terminal deletions localised in the same manner as the wild type proteins indicating that the localisation signals that determine subcellular localisation of the proteins are within the N-terminal 60 amino acids of the 2C protein. The significance of the high degree of conservation of the N-terminal domain of the 2C protein throughout the Picornaviridae was investigated through the introduction of amino acid substitution mutations at highly conserved residues in the N-terminal domain of 2C into the viral cDNA. Upon transfection of the viral RNA into BHK-21 cells, it was observed that substitution of amino acid residues 8, 18 and 29 abolished the ability of TMEV to induce cytopathic effect (CPE), while substitution of residues 4, 14 and 23 only attenuated the ability of TMEV to induce CPE. To determine whether amino acid substitution mutations would affect the localisation of the 2C protein, 2C proteins with substitution mutations at amino acids 4, 8, 14, 18, 23 and 29 were transiently expressed in BHK-21 cells and detected by indirect imrnunostaining and examination by laser-scanning confocal and epifluorescence microscopy. The 2C mutant 4, 8 and 29 proteins showed slightly altered localisation patterns compared to the wild type protein with a significant portion of the proteins localising in a perinuclear stain suggesting possible localisation to the nuclear envelop. The 2C mutant 14 and 18 proteins localised to a diffuse pattern in BHK-21 cells while the 2C mutant 23 protein located to small punctate structures that partially overlapped with the ERp60 stain but were completely separate from the β-COP stain. Finally, a hydrophilic, antigenic region of the 2C protein was expressed in frame with an N-terminal GST tag and was successfully purified on a pilot-scale and detected by Western analysis. This 2C178 peptide will be used to generate antibodies against the 2C and 2BC proteins for use in future studies. This study has furthered our knowledge of the localisation of the picornavirus 2B, 2C, 2BC and 3A proteins in host cells and identified a possible link between this localisation and an ability of TMEV to replicate in BHK-21 cells.
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- Date Issued: 2007
Making visual literacy meaningful in a rural context: an action research case study
- Authors: Mbelani, Madeyandile
- Date: 2007
- Subjects: Visual literacy -- Study and teaching (Secondary) -- South Africa -- Eastern Cape -- Case studies Education -- Research -- Case studies Education -- Research -- South Africa -- Eastern Cape Rural schools -- Research -- Case studies Rural schools -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1668 , http://hdl.handle.net/10962/d1003551
- Description: This thesis reports on a collaborative action research case study into the teaching of visual literacy to Grade 10 learners in a rural high school in the Eastern Cape, South Africa. Visual literacy is one of the critical aspects that have been incorporated in the teaching of English First Additional Language as required by the National Curriculum Statement (Grade 10-12), which has been implemented in Grade 10 as from 2006. With the aim of improving learners’ performance in visual literacy I designed a visual literacy unit that consisted of lesson plans running over 7 periods in 10 school days. In implementing the unit the learners were first grouped and then exposed to visual grammar and visual texts and then they critically viewed such texts and designed their own. Data was collected daily in the form of individual learner journals, researcher’s journal/diary, and copies were kept of activities done by learners (individually or in groups). Also, two teachers were invited as non-participant observers to each visit a lesson. Learner focus groups were conducted and critical friends were interviewed, tape recorded and transcribed. A camera was used to take still photographs to show learner activities in groups and during group presentations. The data revealed that visual literacy could be taught meaningfully in a rural high school as the learners could identify, cut, paste and discuss elements of visual language and they finally designed their own advertisements in groups. In the analysis of data the following factors emerged as hindrances for successful teaching of visual literacy in a rural high school: lack of resources; learners’ lack of a foundation in visual literacy from Grades 7-9; and problems revolving around time management and pacing. As action research comes in spirals, this research represented the first one and the researcher found the study an eye opener and a foundation to build on in the second spiral (that is not part of this research).
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- Date Issued: 2007
Marital turnarounds : an exploratory qualitative study
- Authors: Ntlokwana, Nomalungelo
- Date: 2007
- Subjects: Remarriage -- South Africa -- Nelson Mandela Metropole
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9933 , http://hdl.handle.net/10948/585 , Remarriage -- South Africa -- Nelson Mandela Metropole
- Description: The purpose of this study was to study marital turnarounds by focusing on the exploration of the reasons for couples remarrying each other. A comprehensive approach based on human ecology provided a framework for exploring the reasons for marital turnarounds ranging from micro to macro level factors. Data was collected through six semi-structured interviews, with two African marital turnaround couples from the Nelson Mandela Metropole. Data analysis was carried out systematically through a stepwise process. Data verification and trustworthiness was also performed. Five major themes emerged from the data analysis of the interviews as follows: Culture and religious influences, individual influences, personal growth, family influences and the influence of friends. Culture and religion emerged as powerful theme in shaping decisions about marital turnaround. An important sub-theme was that, in a culture that continues to value marriage as a permanent commitment, spouses internalised the social and religious norm of marriage as a permanent commitment.
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- Date Issued: 2007
Measuring the RFI environment of the South African SKA site
- Authors: Manners, Paul John
- Date: 2007
- Subjects: Radio telescopes , Radio telescopes -- South Africa , Radio astronomy , Radio astronomy -- South Africa , Square Kilometer Array (Spacecraft) , Radio -- Interference -- Measurement
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5474 , http://hdl.handle.net/10962/d1005259 , Radio telescopes , Radio telescopes -- South Africa , Radio astronomy , Radio astronomy -- South Africa , Square Kilometer Array (Spacecraft) , Radio -- Interference -- Measurement
- Description: The Square Kilometre Array (SKA) Project is an international effort to build the world’s largest radio telescope. It will be 100 times more sensitive than any other radio telescope currently in existence and will consist of thousands of dishes placed at baselines up to 3000 km. In addition to its increased sensitivity it will operate over a very wide frequency range (current specification is 100 MHz - 22 GHz) and will use frequency bands not primarily allocated to radio astronomy. Because of this the telescope needs to be located at a site with low levels of radio frequency interference (RFI). This implies a site that is remote and away from human activity. In bidding to host the SKA, South Africa was required to conduct an RFI survey at its proposed site for a period of 12 months. Apart from this core site, where more than half the SKA dishes may potentially be deployed, the measurement of remote sites in Southern Africa was also required. To conduct measurements at these sites, three mobile measurement systems were designed and built by the South African SKA Project. The design considerations, implementation and RFI measurements recorded during this campaign will be the focus for this dissertation.
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- Date Issued: 2007
Micellar-enhanced ultrafiltration of palladium and platinum anions
- Authors: Gwicana, Sakumzi
- Date: 2007
- Subjects: Micelles , Ultrafiltration , Palladium catalysts
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10414 , http://hdl.handle.net/10948/518 , Micelles , Ultrafiltration , Palladium catalysts
- Description: The project was concerned with studying the capability of a micellar-enhanced ultrafiltration system (MEUF) to remove platinum group metal ions namely Pt (lV) and Pd (ll) chloro anions from aqueous industrial waste effluents. South Africa has the world’s largest reserves of platinum group metals (PGMs) and other valuable metals such as manganese, chrome ores, titanium minerals etc. which are required for new automotive and other technologies, including fuel cells, catalytic converters and lighter components. The consistent loss with the industrial waste stream and the toxicological effects of these precious metals led to the need to develop new and effective methods to recover them from industrial waste effluents. With such a wide variety of fields where these PGMs are used and the failure of the traditional techniques namely sedimentation, fermentation etc. to effectively reduce or recover these highly toxic and precious metal ions prior to discharging industrial waste effluents, it is necessary to explore other techniques such as membrane technology that can be used to recover these valuable species from industrial waste streams. The present study involved the use of a cationic surfactant, viz cetylpyridinium chloride, which was introduced into an aqueous solution containing palladium and platinum metal anions. The surfactant forms charged micelles above a certain critical concentration value. The metal anions adsorb onto the available oppositely charged sites on the micelle surfaces and are then able to be retained by a suitable membrane. Hollow fibre ultrafiltration membranes with the MWCO of +/- 10 kD and +/-30nm pore size were used as a filter component in this study. For this MEUF system to be effective, it was vital that the anionic metal ion species adsorbed sufficiently onto the available oppositely charged sites of the micelles and that the micelles were retained efficiently by the membrane. Results obtained during the investigation made it possible to make certain predictions about the micellisation process. It was also found that, it was not only the metal ion: surfactant (M:S) ratio that was critical, but the presence of other electrolytes in the aqueous stream proved to have a huge impact on the capability of the MEUF system. Findings of this research study showed that the MEUF system using cetylpyridinium chloride (CPC) can be used to recover or retain Pt (lV) and Pd (ll) anions from industrial waste effluents. It was also found that PtCl6 2-, due to its greater adsorption capabilities onto the micelle surface than PdCl4 2- or PdCl3(H2O)-, was preferentially retained in neutral medium. This may be exploited as a possible means of separating the two metal ions. The developed system offers the following advantages over some traditional and current methods: simplified unit operation line flow process, smaller amounts of chemical usage and no solid toxic sludge to be disposed of. Applications of this work could be of vital importance in catalytic converter recycling, especially in Port Elizabeth where extensive automobile parts manufacturing occurs.
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- Date Issued: 2007
MOCVD growth and electrical characterisation of InAs thin films
- Authors: Shamba, Precious
- Date: 2007
- Subjects: Metal organic chemical vapor deposition
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10527 , http://hdl.handle.net/10948/706 , Metal organic chemical vapor deposition
- Description: In this work, a systematic study relating the surface morphologies, electrical and structural properties of both doped and undoped InAs and InAsSb epitaxial films grown by metalorganic chemical vapour deposition (MOCVD) was undertaken. A comparative study using TBAs and AsH3 as the group V source in the growth of InAs revealed a considerable improvement, primarily in the electrical properties of InAs grown using TBAs with no significant difference in the surface morphology. InAs layers grown using TBAs, exhibited superior 77 K mobilities of up to 46 000 cm2/Vs, exceeding the best MOCVD data to date. The feasibility of tetraethyl tin (TESn) as an n-type dopant in InAs was to our knowledge investigated for the first time. The incorporation efficiency of this dopant was extensively studied as a function of substrate temperature, V/III ratio, substrate orientation and TESn flow rate. Results from this study show that the doping efficiency is temperature dependent and is not influenced by a variation of the V/III ratio or substrate orientation. Furthermore, Sn doping concentrations could be controlled over 2 orders of magnitude ranging between 2.7 x 1017 and 4.7 x 1019 cm-3 with 77 K mobilities ranging from 12 000 to 1300 cm2/Vs. The electrical properties of zinc doped InAs employing dimethyl zinc (DMZn) as the ptype dopant, were studied as a function of V/III ratio and substrate orientation. The effect of a variation of these parameters on the structural properties and surface morphology of InAs is also reported. The substrate orientation appears to have no influence on the Zn incorporation. An increase in Zn incorporation resulted in a deterioration of both the surface morphology and structural quality of the InAs layers. The incorporation efficiency of DMZn in InAsSb was studied as a function of growth temperature, V/III ratio and DMZn flow rate. A higher Zn incorporation was observed in InAsSb epitaxial layers grown at a lower temperature and V/III ratio as opposed to the layers grown at a higher temperature and V/III ratio. This study also revealed that the use of DMZn caused a dopant memory effect. A two-layer model proposed by Nedoluha and Koch (1952) was used to simulate the Hall measurements of Zn doped InAs and InAsSb in order to correct the shortcomings of conventional Hall measurements in determining the electrical properties exhibited by these materials.
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- Date Issued: 2007
Mores, fault and fides: are these acceptable criteria when income tax deductions are claimed
- Authors: Swanepoel, Marius G
- Date: 2007
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:889 , http://hdl.handle.net/10962/d1001643
- Description: The two “pillars” on which taxable income is based are the definition of “gross income” in section 1 of the Income Tax Act, 58 of 1962, and the “general deduction formula” comprising the preamble to section 11, section 11(a) and section 23(g) of the Act. Many of the terms used in these sections are not defined in the Income Tax Act. Case law in relation to these sections reveals that morality issues, the negligence of taxpayers and the good faith of taxpayers have from time to time been treated as relevant considerations by the courts, both abroad and in South Africa, in allowing or disallowing deductions from the gross income of taxpayers. In some instances this occurred apparently unwittingly. In other instances, earlier decisions were followed without a thorough consideration of the correctness of the underlying reasoning or of the criteria which were applied in the earlier decisions. In relation to the definition of “gross income”, however, fides, mores and fault have not been a consideration. In CIR v Delagoa Bay Cigarette Co Ltd 1918 TPD 391 Bristowe, J stated: “I do not think it is material for the purpose of this case whether the business carried on by the company is legal or illegal.” There were a number of cases heard in relation to income from illegal activities (for example, COT v G, 1981 (4) SA 167 (ZA), 43 SATC 159, and ITC 291, 7 SATC 335, which related to the misappropriation of funds, ITC 1545, 54 SATC 464, which dealt with the proceeds of the sale of stolen diamonds and ITC 1624, 59 SATC 373, which dealt with overcharging customers). In these cases, the question turned on whether or not the amounts were received by the taxpayers for their own benefit and therefore to be included in gross income, or whether the taxpayers incurred a concomitant liability to repay the amounts, and did not involve the question of fides, mores or fault. The research concludes that, providing an even-handed approach is applied to both income and expense considerations, fides and mores may continue to play a role as a useful yardstick in this context. However, that fault, particularly the causal negligence of taxpayers in the process of sustaining a loss or incurring expenditure whilst conducting their income generating operations, has effectively been jettisoned as an irrelevant consideration, is a salutary development which has contributed to legal certainty.
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- Date Issued: 2007
Motivation of teachers for the implementation of the further education and training certificate (Grades 10-12)
- Authors: Treu, Paul Matthew
- Date: 2007
- Subjects: Motivation in education , Teaching , Educational change -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9549 , http://hdl.handle.net/10948/623 , Motivation in education , Teaching , Educational change -- South Africa
- Description: Educational change in South Africa has been met with stern resistance and educators are faced with enormous difficulty in implementing new policies and curricula. Educators who have been deskilled over the years are now all of the sudden required to think ‘outside the box’ and to undergo a complete mindset change regarding the implementation of the new Further Education and Training curriculum. The new challenges educators have to cope with, heavily impacts on their day to day working conditions and subsequently their motivation. Due to the increased awareness and concern with regards to the level of educators’ motivation, this research study is based on the research question, namely how motivated educators were for the implementation of the new Further Education and Training curriculum and secondly, to explore guidelines to enhance their motivation. In an attempt to provide answers to the research problem, a qualitative research design was adopted for this research and was undertaken in two phases. In Phase 1, the data gathering consisted of semi-structured group interviews. The data was then coded into themes, sub-themes and categories and served as the basis for the interpretation of how motivated educators were for the implementation of the new Further Education and training curriculum. Four main themes emerged from the data analysis; Teachers expressed distrust in the Department of Education; Negative expectations of FET are based on the inadequate training teachers received; Teachers are de-motivated and display a low morale; Few aspects contribute to a positive attitude. Phase 2 offered recommendations, derived from the findings of Phase 1, to enhance the motivation of educators for the implementation of the new Further Education and Training curriculum. It was evident from the data analysis that educators were experiencing difficulties in coping with the heavy demand being placed on their shoulders to effectively implement the new curriculum. They displayed negative feelings towards the Department of Education who expected them to implement change within a limited time-frame. The conclusion was reached that educators are in desperate need for motivational strategies and support to enhance their emotional well-being, motivation and self-efficacy.
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- Date Issued: 2007
Multi-income level investment in golf estates
- Authors: Ngubeni, Steven Piet
- Date: 2007
- Subjects: Real estate development , Sustainable development -- South Africa , Housing development -- South Africa , Planned communities
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:9694 , http://hdl.handle.net/10948/771 , Real estate development , Sustainable development -- South Africa , Housing development -- South Africa , Planned communities
- Description: The government of South African has stated its intentions to enforce a policy which will compel developers of upmarket residential properties to set aside 20 percent of their upmarket residential developments to accommodate affordable housing. The developers on the other hand, have expressed concerns about this approach. The principal aim of this study and of the research was to investigate the desirability of the concept of multi-income-level investment approach to the development of golf estates. A phenomenological strand of qualitative research method was used in the research. The following formed the focal point of the research: • An investigation into the perceptions of the stakeholders, especially the buyers of up-market properties, about mixed-income-level investments in golf estates. • The potential effect of the implementation of including affordable housing in the development of golf estates • An investigation of the perceived effect on the profitability of investments by the inclusion of affordable housing in golf estate properties. • The extent of the contribution of including affordable housing in golf estate developments to the reduction of the current backlog
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- Date Issued: 2007
Nguni fermented foods: working with indigenous knowledge in the Life Sciences: a case study
- Authors: Hanisi, Nosipho
- Date: 2007
- Subjects: Life sciences -- Study and teaching (Secondary) -- South Africa -- Case studies Environmental education -- South Africa -- Case studies Fermented foods -- Case studies Fermentation Indigenous peoples -- Case studies Nguni (African people) -- Social life and customs. Xhosa (African people) -- Social life and customs. Ethnoscience
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1957 , http://hdl.handle.net/10962/d1008372
- Description: This study examines learning interactions around indigenous ways of knowing associated with fermented grain foods (the making of umqombothi) and the concept of alcoholic fermentation in the Grade 11 Life Sciences curriculum. As an environmental education study it also investigates the cultural significances of the fermented grain food and how learners might make better lifestyle choices. The inclusion of indigenous ways of knowing in the Life Sciences curriculum (FET band) created spaces and opportunities for the use of both knowledge's in sociocultural context and the structured propositions of the learning area in order to construct knowledge. This stimulated learners' understanding of fermentation and also led to a valuing of social context as well as the cultural capital embedded in the indigenous ways of knowing. The study suggests that parental involvement contributed to this valuing of intergenerational ways of knowing. Learners also deliberated how colonial interpretations of Nguni culture and the religious beliefs of Christians had served to marginalise and foster a widening urban rejection of isiXhosa cultural practices related to fermented foods. In their learning and discussion, learners developed new insights and respect for isiXhosa fermentation practices (ukudidiyela) that bring out the food value and nutrition in the grain. The data illustrates that lesson activity that drew on relevant Learning Outcomes and Assessment Standards to integrate Indigenous Knowledge practices in a Life Sciences learning programme, served to enhance learner understanding of alcoholic fermentation. They also document a revaluing of cultural heritage and learners bringing up the problem of alcohol abuse in the community. Curriculum work with Indigenous Knowledge thus not only assisted learners to grasp the science but to use this alongside a valued cultural knowledge capital to deliberate and act on a local concern.
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- Date Issued: 2007
Normative value systems as portrayed by V.N.M. Swaartbooi and V. Magadla
- Authors: Zideba-Thomas, Cynthia Daniswa
- Date: 2007
- Subjects: Xhosa literature -- History and criticism , Xhosa (African people) -- South Africa -- Social life and customs -- 20th century , Language and culture -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8441 , http://hdl.handle.net/10948/650 , Xhosa literature -- History and criticism , Xhosa (African people) -- South Africa -- Social life and customs -- 20th century , Language and culture -- South Africa
- Description: This study will focus on norms and value systems as portrayed by two female Xhosa writers. The aim of this study is to show how normative value systems are represented by two female Xhosa female writers. It also aims to show the effects of these systems on women. The method of research will be based on survey of Xhosa literature focusing on the following two books, Inzol ‘enkundleni, by V. Magadla and UMandisa by V.N.M. Swaartbooi.
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- Date Issued: 2007
Occult forces -- lived identities: witchcraft, spirit possession and cosmology amongst the Mayeyi of Namibia's Caprivi Strip
- Authors: Von Maltitz, Emil Arthur
- Date: 2007
- Subjects: Yeye (African people) , Yeye (African people) -- Namibia -- History , Occultism -- Namibia , Witchcraft -- Namibia , Spirit possession -- Namibia , Cosmology
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2121 , http://hdl.handle.net/10962/d1013279
- Description: Around Africa there seems to be an increasing disillusion with 'development', seen under the rubric of teleological 'progress', which is touted by post-colonial governments as being the cure for Africa's ailments and woes. Numerous authors have pointed out that this local disillusion, and the attempt to manage the inequities that arise through development and modernity, can be seen to be understood and acted upon by local peoples through the idiom of witchcraft beliefs and fears (see Geschiere & Fisiy 2001; Geschiere 1997; Nyamnjoh 2001; Comaroff & Comaroff 1993; Ashforth 2005) and spirit possession nanatives (see Luig 1999; Gezon 1999), or more simply, occult beliefs and praxis (Moore & Sanders 2001). The majority of the Mayeyi of Namibia's Eastern Caprivi perceive that development is the only way their regiOn and people can survive and succeed in a modernising world. At ~he same time there is also a seeming reluctance to move towards perceiving witchcraft as a means of accumulation (contra Geschiere 1997). This notion of the 'witchcraft of wealth' is emerging, but for the most part witches are seen as the enemies of development, while spirit possession narratives speak to the desire for development and of the identity of the group vis-a-vis the rest of the world. The thesis presented argues that, although modernity orientated analyses enable occult belief to be used as a lens through which to 1..mderstand 'modernity's malcontents' (Comaroff & Comaroff 1993), they can only go so far in explaining the intricacies of witchcraft and spirit possession beliefs themselves. The dissertation argues that one should return to the analysis of the cosmological underpinnings of witchcraft belief and spirit possession, taken together as complementary phenomena, in seeking to understand the domain of the occult. By doing so the thesis argues that a more comprehensive anthropological understanding is obtained of occult belief and practice, the ways in which the domain of the occult is constituted and the ways in which it is a reflection or commentary on a changing world.
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- Date Issued: 2007
Operating room nursing science learning programmes in South Africa
- Authors: Prince, Jacqueline Yvonne
- Date: 2007
- Subjects: Operating room nursing -- Study and teaching -- South Africa
- Language: English
- Type: Thesis , Masters , MCur
- Identifier: vital:10047 , http://hdl.handle.net/10948/594 , http://hdl.handle.net/10948/d1012880 , Operating room nursing -- Study and teaching -- South Africa
- Description: Operating room nurses form the corner-stone of the operating room because perioperative care of the patient rests mainly in the hands of the nursing personnel. Unique challenges face nurses functioning in the stressful surgical environment where anticipation to prevent or cope with life-threatening situations is the order of the day. The operating room nurse must be knowledgeable, skilled and alert, as he/she is held accountable for all acts of commission and omission. To ensure that nurses are appropriately educated and trained and able to keep trend with the changing technology in the operating room, it is essential that learning programmes meet the minimum standards for registration as prescribed by the South African Nursing Council. Reviewing and evaluating learning programmes on a regular basis by specialist nursing educationists, are therefore essential to ensure that the standards of education and training are maintained and upgraded if required. The aim of this study is to explore and describe the various Operating Room Nursing Science Learning Programmes offered at accredited Higher Education Institutions, utilized for the education and training of the operating room nursing students in South Africa. The proposed research is based on a qualitative paradigm and the theoretical grounding is found in Bergman’s model for professional accountability (Bergman, 1982:8). A document analysis of five approved comprehensive Operating Room Nursing Science Learning Programmes from higher education institutions in South Africa (nursing colleges and universities) was carried out, together with a sixth programme, the Operating Theatre Learning Programme, as suggested by the Standard Generating Body. Requests for permission were forwarded to the management of the selected colleges or universities for inclusion of the respective programmes in the study. The researcher formulated and utilized thirty-four essential criteria derived from three documents, the first being a document entitled “Proposed Standards for Nursing and Midwifery Qualifications” submitted to the SANC and SAQA by the SGB for Nursing and Midwifery (2001-2004). The second document entitled the Public and Private Higher Education Institutions format template for criteria for the Generation and Evaluation of Qualifications and Standards within the National Qualifications Framework was also utilized (SAQA, 1430/00) and thirdly the researcher included the most relevant criteria from the list of criteria for curriculum development as indicated by the South African Nursing Council. Various tables were compiled, to reflect the findings of the document analysis according to the thirty-three criteria indicated above, to provide a clear and broad overview of the specific data in the respective six Operating Room Nursing Science Learning Programmes utilized in the study. In conclusion recommendations for a broad macro-curriculum were made to facilitate formulation of programmes in Operating Room Nursing Science relevant to the South African context.
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- Date Issued: 2007
Opportunities for eco-efficiency at Summerpride Foods Ltd.: a pineapple processing factory
- Authors: Venters, Bruce Russell Ainsley
- Date: 2007
- Subjects: Summerpride Foods Ltd. (South Africa) Environmental protection -- South Africa Industries -- Environmental aspects -- South Africa Pineapple industry -- South Africa Environmental policy -- South Africa Sustainable development -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:787 , http://hdl.handle.net/10962/d1003908
- Description: International awareness and demands for the protection of the environment by the public on industry has only been pushed into the limelight in the past couple of decades. Prior to this it could be argued that it was accepted that environmental protection and economic development were at odds. However it has since been recognised that there is a need to achieve environmental sustainability, the concept of which was released in the 1987 Brundtland Report released by the United Nations. There are a number of ways that industry can reduce its impact on the environment and thus help reach this goal. While some advocated that stricter legislation would result in greater innovation by industry in “cleaning-up” its act, such as the Porter Hypothesis, there were also a number of new concepts and voluntary industry codes being developed. These new practices and codes have been promoted by organisations such as the International Chamber of Commerce and include technological improvements within organisations and improved resource productivity. The aim of this case study research was to find out what the environmental policy and related performance of Summerpride Foods Ltd, a pineapple processing factory in East London was and does an understanding of its environmental performance provide insights for improved efficiency. This involved the identification and analysis of what resources were used during the processing of pineapples as well as making recommendations that would result in increased efficiencies of their use. Due to the number of resources identified, only the use of water and coal which were ranked as having the highest impact were investigated further. The literature review showed that there are industry moves to applying cleaner production and eco-efficiency concepts as a means to attaining environmental sustainability. There are a number of voluntary environmental management system standards and codes that organisations can subscribe to with most probably the ISO 14001 standard being the most internationally recognised. There are many benefits to organisations adopting such standards. The use of lifecycle assessments is a useful tool that can be used to assess the environmental impact of a product through its entire life and thus enable one to identify all resources used and their impact, as well as to provide the information required to quantify areas where the greatest improvements can be made. The results of this research showed that at the start of the study, there was no formal environmental policy in place at Summerpride Foods Ltd and that this was starting to become a requirement with some customers. The detailed results which focused on water and coal usage showed that current operating methods do not recognise the importance of any wastage and that there are a number of changes that could be made that would not only result in better efficiency of use but would also result in substantial financial savings to the organisation. Summerpride Foods Ltd currently has a number of systems in place that help reduce its impact on the environment but these are not formally recorded. Summerpride Foods Ltd should adopt the principles of eco-efficiency and record all systems that impact on the environment. This would be the first step to attaining a formal environmental management system accreditation which due the increasing competitiveness of the international market in which Summerpride Foods Ltd operates, would give it a degree of advantage over those competing pineapples processing factories that do not have such accreditation.
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- Date Issued: 2007
Optimisation of pharmacological management of diabetes mellitus in a primary health care setting
- Authors: Dickason, Beverley Janine
- Date: 2007
- Subjects: Diabetes , Diabetes -- Treatment
- Language: English
- Type: Thesis , Masters , MPharm
- Identifier: vital:10161 , http://hdl.handle.net/10948/846 , http://hdl.handle.net/10948/d1012902 , Diabetes , Diabetes -- Treatment
- Description: Levels of diabetic care in primary health care settings in South Africa have been found to be sub-optimal. Knowledge deficits and inadequate practices have been implicated in the poor quality of local diabetes care. Type 2 diabetes and hypertension are commonly associated chronic conditions hence to optimise diabetic care, tight control of blood pressure is essential. Although guidelines for the overall management of diabetes in a primary health care setting have been published (Working Group of the National Diabetes Advisory Board, 1997; Society for Endocrinology, Metabolism and Diabetes of South Africa, 2002a), adherence to these guidelines has not yet been optimised in the primary health care setting. The objectives of the study were: to design and implement an educational intervention aimed at nursing staff, based on the South African guidelines for type 2 diabetes and hypertension, at a public sector primary health care clinic; to determine the impact of the educational intervention on the level of knowledge and attitudes of the nursing staff, and on the level of diabetic and blood pressure control achieved in the patient population, and to determine the impact of the educational intervention on pharmacological management of patients. A questionnaire was used to quantitatively assess the nursing staffs’ knowledge of the management of type 2 diabetes and hypertension at a primary health care level. A qualitative evaluation of the nursing staff attitudes was obtained using focus group interviews. The educational intervention, in the form of lectures and based on national diabetes and hypertension guidelines (Working Group of the National Diabetes Advisory Board, 1997; Society for Endocrinology, Metabolism and Diabetes of South Africa, 2002a; Milne et al., 2003), was then implemented and directed at the nursing staff at a primary health care clinic. A post-intervention evaluation was performed after four months by repeating the questionnaire and focus group interviews. Comparisons between the pre- and post-intervention questionnaire and focus group interviews evaluated the impact of the educational intervention on the knowledge and attitudes of nursing staff towards the management of type 2 diabetes. Pre- and post-intervention patient data was collected from patient medical files and compared to determine if the management of diabetes and hypertension improved in the patient population after the implementation of the educational intervention. The patient population consisted of 103 patients. The educational intervention resulted in an extremely significant improvement in the level of knowledge of the nursing staff [93 correct responses (28.3 percent; n = 329 (pre-intervention)) vs 223 correct responses (67.8 percent; n = 329 (post-intervention)); p < 0.0001, Fisher’s Exact test]. The educational intervention resulted in improved attitudes of nursing staff towards the management of diabetes. Ideal random blood glucose concentrations improved significantly [16 percent; n = 100 (pre-intervention) vs 22 percent; n = 100 (post-intervention); p = 0.0003; Student t test]. The number of patients with a compromised HbA1c level (> 8 percent) decreased by 2 [51; 49.5 percent, n = 103 (pre-intervention) vs 49, 47.5 percent, n = 103 (post-intervention)] which was not a significant improvement. Ideal blood pressure control improved by one from 38 patients [36.9 percent; n = 103 (pre-intervention)] to 39 patients [37.9 percent; n = 103 (post-intervention)] which was not significant. Optimal change of pharmacological management following the referral of an uncontrolled diabetic patient was only noted for 18 patients (20.2 percent, n = 89) referred in the post-intervention phase. Clinical inertia was identified as a major limitation to the optimisation of diabetes care. Implementation of an educational intervention based on the South African diabetes and hypertension guidelines at a public sector primary health care clinic was successful in improving the knowledge levels and attitudes of nursing staff
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- Date Issued: 2007
Part one: "Horror versus terror in the body genre" : part two: "Silent planet"
- Authors: Vermaak, Janelle Leigh
- Date: 2007
- Subjects: Horror films -- History and criticism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8406 , http://hdl.handle.net/10948/636 , Horror films -- History and criticism
- Description: This article seeks to investigate this balance and to interrogate the difference between horror and terror in an attempt to contribute to the development of a systematic genre typology. A brief history of the genre will be given, after which the focus will fall on contemporary Horror film, paying specific attention to the relationship between violence and horror, the theme of sacrificial violence, and the transgression of ‘natural’ laws. An eclectic approach is followed, drawing from literary theory, theology, psychology, and, of course, film theory.
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- Date Issued: 2007
Particle precipitation effects on the South African ionosphere
- Authors: Sibanda, Patrick
- Date: 2007
- Subjects: Ionosphere -- South Africa , Precipitation (Chemistry) -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5481 , http://hdl.handle.net/10962/d1005267 , Ionosphere -- South Africa , Precipitation (Chemistry) -- South Africa
- Description: Particle precipitation involves the injection of energetic particles into the ionosphere which could increase the ionisation and conductivity of the upper atmosphere. The goal of this study was to examine the ionospheric response and changes due to particle precipitation in the region over South Africa, using a combination of groundbased and satellite instruments. Particle precipitation events were identified from satellite particle flux measurements of the Defence Meteorological Satellite Program (DMSP). Comprehensive studies were done on the events of 5 April, 2000 and 7 October, 2000. Analysis of the data from the satellite instruments indicates that no particle precipitation was observed over the South African region during these events and that it is unlikely to occur during other such events. To validate the data, methods and tools used in this study, precipitation in the South Atlantic anomaly (SAA) region is used. Satellite ion density measurements revealed that strong density enhancements occurred over the SAA region at satellite altitudes during the precipitation events, but this did not occur in the South African region. The measurements also revealed how the ionisation enhancements in the SAA region correlated with geomagnetic and solar activities. Particle precipitation and convective electric fields are two major magnetospheric energy sources to the upper atmosphere in the auroral and the SAA regions. These increase dramatically during geomagnetic storms and can disturb thermospheric circulation in the atmosphere and alter the rates of production and recombination of the ionised species. Ionosonde observations at Grahamstown, South Africa (33.30S, 26.50E), provided the data to build a picture of the response of the ionosphere over the South African region to particle precipitation during the precipitation events. This analysis showed that, within the confines of the available data, no direct connections between particle precipitation events and disturbances in the ionosphere over this region were revealed.
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- Date Issued: 2007
Past trauma, anxious future a case-based evaluation of the Ehlers and Clark model for PTSD applied in Africa
- Authors: Van der Linde, Francois
- Date: 2007
- Subjects: Cognitive therapy Post-traumatic stress disorder -- Africa Rape trauma syndrome -- Treatment -- Africa Rape victims -- Africa Anxiety -- Treatment Depression, Mental -- Treatment Post-traumatic stress disorder -- Patients Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3075 , http://hdl.handle.net/10962/d1002584
- Description: This research report documents the therapeutic intervention undertaken with a 23-year-old Swazi rape victim. The format of this research report takes the form of a case study that follows the principles proposed by Fishman (2005). Its aim is to document the treatment process of an individual of African decent in order to establish whether the treatment model can be effective in clinical settings and in contexts and cultural settings different from that in which it was developed. The Ehlers and Clark (2000) cognitive therapy model for post-traumatic stress disorder (PTSD) was utilised to assess, conceptualise, and treat the case. The client entered therapy three years after being raped for a third time. The case formulation identified factors maintaining the disorder as well as how other traumatic and abusive events earlier in her life influenced her response to the rapes. Data consisted off audio-tape recordings and detailed written synopses of each assessment and therapy session, psychometric measurement instruments and self-report scales completed throughout the intervention, material written by the client, and a research interview conducted by an independent party. She was treated for PTSD and comorbid depression over a period of five months in accordance with the principles described by Ehlers and Clark and a narrative of the treatment process was written. The case narrative in conjunction with quantitative data suggested that this model assisted the client in initiating a healing process. As such the model was found to be both effective and transportable to an African context. Various points of discussion are highlighted, including the challenges of working with PTSD and comorbid major depression, the client-therapist relationship, and that a client and therapist from different cultures, backgrounds, and with different home languages can work together effectively using the Ehlers and Clark model.
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- Date Issued: 2007