A critical analysis on underutilization of Ante Natal Care services and identification of legislative implementation challenges. A case study in some health centers of Senqu Health sub-District in the Eastern Cape
- Authors: Yekani-Mati, Nokonwaba
- Date: 2014
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11713 , http://hdl.handle.net/10353/d1015248
- Description: Attention has recently focus on improved Ante Natal Care (ANC) Service utilization as one the Department of Health’s strategies in, promoting better health, ensuring safe mothers and babies, reducing HIV/Aids infection of unborn babies , their mothers and their partners, reaching out as many people, who are at the child bearing age as possible and reaching out to those people who are legible for ART during pregnancy so as to put them on ARV treatment if necessary and ensuring that the mothers, babies and partners enjoy support during the pregnancy of mothers and to prepare them for delivery . The idea is to ensure, by antenatal preparation, the best possible pregnancy outcome for women and their babies (Guidelines for MATERNITY CARE in South Africa NDOH 2007: 19).The departmental guidelines through ante natal care seek to ensure that the following take place timorously: Screening for pregnancy problems: women are done physical and examination and blood test are done to identify or exclude pregnancy problems. Assessment of pregnancy risks: Any pregnancy risks that whether physical, medical, psychological and psychosocial are identified and the mother is advised on better pregnancy management. Treatment of problems that may arise during the antenatal period: when there are existing problems that need treatment the mother get managed and is treated as according to the identified problem.
- Full Text:
- Date Issued: 2014
- Authors: Yekani-Mati, Nokonwaba
- Date: 2014
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11713 , http://hdl.handle.net/10353/d1015248
- Description: Attention has recently focus on improved Ante Natal Care (ANC) Service utilization as one the Department of Health’s strategies in, promoting better health, ensuring safe mothers and babies, reducing HIV/Aids infection of unborn babies , their mothers and their partners, reaching out as many people, who are at the child bearing age as possible and reaching out to those people who are legible for ART during pregnancy so as to put them on ARV treatment if necessary and ensuring that the mothers, babies and partners enjoy support during the pregnancy of mothers and to prepare them for delivery . The idea is to ensure, by antenatal preparation, the best possible pregnancy outcome for women and their babies (Guidelines for MATERNITY CARE in South Africa NDOH 2007: 19).The departmental guidelines through ante natal care seek to ensure that the following take place timorously: Screening for pregnancy problems: women are done physical and examination and blood test are done to identify or exclude pregnancy problems. Assessment of pregnancy risks: Any pregnancy risks that whether physical, medical, psychological and psychosocial are identified and the mother is advised on better pregnancy management. Treatment of problems that may arise during the antenatal period: when there are existing problems that need treatment the mother get managed and is treated as according to the identified problem.
- Full Text:
- Date Issued: 2014
A critical assessment of developmental local government and its relevance to the democratic South Africa: A case study of Amathole District Municipality
- Authors: Mbambo, W B
- Date: 2014
- Language: English
- Type: Thesis , Masters , M Admin
- Identifier: http://hdl.handle.net/10353/1085 , vital:26525
- Description: The notion of developmental local government has become part of the South African local government dispensation as from the year 2000. According to Smith and Vawda (2003:28) the idea of developmental local government (DLG) emerged from the fusion of the social interventionist goals of the Reconstruction and Development Programme (RDP) and the market driven economic strategies of the Growth Employment and Redistribution policy (GEAR); the two main national policies of the post-apartheid era for addressing economic growth and poverty eradication. The RDP and GEAR represented different visions for how to bring about equity and redistribution in a deeply divided state and economy. In itself South Africa as a state has 283 municipalities which are wall to wall in terms of demarcation. However, despite the fact that local democracy is deeply entrenched in South African society and furthermore, a very futuristic local government policy framework has been introduced, there is no guarantee that the new local government system will be financially viable and capable of discharging its democratic and developmental mandate. There are major challenges that have to be addressed, namely promoting job-creation, local economic development, capacity development and civic education which, in the final analysis, will ensure that the concept of developmental local government becomes a reality for the majority of South Africans.
- Full Text:
- Date Issued: 2014
- Authors: Mbambo, W B
- Date: 2014
- Language: English
- Type: Thesis , Masters , M Admin
- Identifier: http://hdl.handle.net/10353/1085 , vital:26525
- Description: The notion of developmental local government has become part of the South African local government dispensation as from the year 2000. According to Smith and Vawda (2003:28) the idea of developmental local government (DLG) emerged from the fusion of the social interventionist goals of the Reconstruction and Development Programme (RDP) and the market driven economic strategies of the Growth Employment and Redistribution policy (GEAR); the two main national policies of the post-apartheid era for addressing economic growth and poverty eradication. The RDP and GEAR represented different visions for how to bring about equity and redistribution in a deeply divided state and economy. In itself South Africa as a state has 283 municipalities which are wall to wall in terms of demarcation. However, despite the fact that local democracy is deeply entrenched in South African society and furthermore, a very futuristic local government policy framework has been introduced, there is no guarantee that the new local government system will be financially viable and capable of discharging its democratic and developmental mandate. There are major challenges that have to be addressed, namely promoting job-creation, local economic development, capacity development and civic education which, in the final analysis, will ensure that the concept of developmental local government becomes a reality for the majority of South Africans.
- Full Text:
- Date Issued: 2014
A critical assessment of the institutionalisation of Performance Management Systems in Local Government: a special focus on political office bearers and senior managers in O.R Tambo District Municipality
- Authors: Ndabeni, Mziwonke
- Date: 2014
- Subjects: Performance Management System
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11696 , http://hdl.handle.net/10353/d1015109 , Performance Management System
- Description: Service delivery is at the centre of South Africa’s developmental local government. Thus with such a high calling to development, local municipalities play an important role in enhancing development in their areas of jurisdiction. In the area under this study, the Local Government Department has initiated Performance Management as a response to the service delivery hardships and as a bottom up approach to socio economic development of their communities. In the view of Performance Management being used as a tool for enhancing Service delivery, the study therefore sought to discover the role that the Performance Management System is playing in the Local Municipality Development of O.R District. It also sought to find out the extent of support that has been afforded by government and other stakeholders within the context of the cooperative governance. To establish this, the researcher employed the quantitative approach guided by a primary research design. The review of primary data allowed for a close assessment of the Performance Management System in detail. Available data on PMS gave an easier task of assessing the impact of PMS in the district and the constraints they have faced so far. The findings from the study revealed that PMS in the district show a great potential for better performance if performance management systems were to be understood by all staff members of the municipality. It has been also observed that they lack information on performance management, proper finance management, and diversification and value addition for their service delivery so as to increase their competitiveness. It is imperative therefore to recommend further training on good Performance management skills and sourcing for employees and understanding new PMS. This form of support will go a long way in ensuring the sustainability of Performance Management System in the O.R. District Municipality. Keywords: Performance Management System, Political office bearers and Senior Manager O.R District.
- Full Text:
- Date Issued: 2014
- Authors: Ndabeni, Mziwonke
- Date: 2014
- Subjects: Performance Management System
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11696 , http://hdl.handle.net/10353/d1015109 , Performance Management System
- Description: Service delivery is at the centre of South Africa’s developmental local government. Thus with such a high calling to development, local municipalities play an important role in enhancing development in their areas of jurisdiction. In the area under this study, the Local Government Department has initiated Performance Management as a response to the service delivery hardships and as a bottom up approach to socio economic development of their communities. In the view of Performance Management being used as a tool for enhancing Service delivery, the study therefore sought to discover the role that the Performance Management System is playing in the Local Municipality Development of O.R District. It also sought to find out the extent of support that has been afforded by government and other stakeholders within the context of the cooperative governance. To establish this, the researcher employed the quantitative approach guided by a primary research design. The review of primary data allowed for a close assessment of the Performance Management System in detail. Available data on PMS gave an easier task of assessing the impact of PMS in the district and the constraints they have faced so far. The findings from the study revealed that PMS in the district show a great potential for better performance if performance management systems were to be understood by all staff members of the municipality. It has been also observed that they lack information on performance management, proper finance management, and diversification and value addition for their service delivery so as to increase their competitiveness. It is imperative therefore to recommend further training on good Performance management skills and sourcing for employees and understanding new PMS. This form of support will go a long way in ensuring the sustainability of Performance Management System in the O.R. District Municipality. Keywords: Performance Management System, Political office bearers and Senior Manager O.R District.
- Full Text:
- Date Issued: 2014
A critical assessment of the public service commission in fighting corruption in South Africa
- Authors: Gola, Ndumiso Helton
- Date: 2014
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10353/1078 , vital:26524
- Description: Using a qualitative research design, this study examined the role of the Public Service Commission (PSC) in curbing corruption in the Eastern Cape Province in South Africa. The Public Service Commission is an independent and impartial body create. Using a qualitative research design, this study examined the role of the Public Service Commission (PSC) in curbing corruption in the Eastern Cape Province in South Africa. The Public Service Commission is an independent and impartial body created by the Constitution, in 1996, to enhance excellence in governance within the Public Service by promoting a professional and ethical environment and adding value to a public administration that is accountable, equitable, efficient, effective, corruption-free and responsive to the needs of the people of South Africa. The study used a desktop approach whereby data was collected from books, journals, articles, media reports and surveys done by other scholars. The findings of the study highlighted that corruption is rampant in South Africa in different sectors and departments. Corruption in South Africa has reached epidemic levels and threatens the lives of all South African citizens. The role of the PSC has been found to be weaker and not meeting its role of fighting corruption as there are more failures than successes since its inception. This has been attributed to challenges such as human resources and financial constraints. The study however suggests recommendations which include extension and possible employment of dedicated permanent staff with relevant experience to address their capacity needs.d by the Constitution, in 1996, to enhance excellence in governance within the Public Service by promoting a professional and ethical environment and adding value to a public administration that is accountable, equitable, efficient, effective, corruption-free and responsive to the needs of the people of South Africa. The study used a desktop approach whereby data was collected from books, journals, articles, media reports and surveys done by other scholars. The findings of the study highlighted that corruption is rampant in South Africa in different sectors and departments. Corruption in South Africa has reached epidemic levels and threatens the lives of all South African citizens. The role of the PSC has been found to be weaker and not meeting its role of fighting corruption as there are more failures than successes since its inception. This has been attributed to challenges such as human resources and financial constraints. The study however suggests recommendations which include extension and possible employment of dedicated permanent staff with relevant experience to address their capacity needs.
- Full Text:
- Date Issued: 2014
- Authors: Gola, Ndumiso Helton
- Date: 2014
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10353/1078 , vital:26524
- Description: Using a qualitative research design, this study examined the role of the Public Service Commission (PSC) in curbing corruption in the Eastern Cape Province in South Africa. The Public Service Commission is an independent and impartial body create. Using a qualitative research design, this study examined the role of the Public Service Commission (PSC) in curbing corruption in the Eastern Cape Province in South Africa. The Public Service Commission is an independent and impartial body created by the Constitution, in 1996, to enhance excellence in governance within the Public Service by promoting a professional and ethical environment and adding value to a public administration that is accountable, equitable, efficient, effective, corruption-free and responsive to the needs of the people of South Africa. The study used a desktop approach whereby data was collected from books, journals, articles, media reports and surveys done by other scholars. The findings of the study highlighted that corruption is rampant in South Africa in different sectors and departments. Corruption in South Africa has reached epidemic levels and threatens the lives of all South African citizens. The role of the PSC has been found to be weaker and not meeting its role of fighting corruption as there are more failures than successes since its inception. This has been attributed to challenges such as human resources and financial constraints. The study however suggests recommendations which include extension and possible employment of dedicated permanent staff with relevant experience to address their capacity needs.d by the Constitution, in 1996, to enhance excellence in governance within the Public Service by promoting a professional and ethical environment and adding value to a public administration that is accountable, equitable, efficient, effective, corruption-free and responsive to the needs of the people of South Africa. The study used a desktop approach whereby data was collected from books, journals, articles, media reports and surveys done by other scholars. The findings of the study highlighted that corruption is rampant in South Africa in different sectors and departments. Corruption in South Africa has reached epidemic levels and threatens the lives of all South African citizens. The role of the PSC has been found to be weaker and not meeting its role of fighting corruption as there are more failures than successes since its inception. This has been attributed to challenges such as human resources and financial constraints. The study however suggests recommendations which include extension and possible employment of dedicated permanent staff with relevant experience to address their capacity needs.
- Full Text:
- Date Issued: 2014
A critical cultural review of the media coverage in the infighting of Nelson Mandela's burial in 2013
- Authors: Tandwa, Nontlahla
- Date: 2014
- Subjects: Mandela, Nelson, 1918-2013 , Mass media and culture
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/5733 , vital:20987
- Description: The aim of the study is to analyze the representation of isiXhosa traditional culture through the coverage on media coverage as the topic suggests following a legal battle on the removal of the remains of Mandela‘s children in the year 2013. The online news articles selected in this study covered issues since Mandela was in and out of hospital. The articles covered are those of local newspaper, The Herald-online- as it is based in the Eastern Cape and has covered more on the traditional beliefs, understanding and following such rituals. The aim of the study is to explore and describe the perceptions and experiences of people around the family feud and the legal battle on the removal of those remains. It will also emphasize on the representation of the media on this problem and how Xhosa tradition can be affected and also compare other newspaper articles on their coverage.
- Full Text:
- Date Issued: 2014
- Authors: Tandwa, Nontlahla
- Date: 2014
- Subjects: Mandela, Nelson, 1918-2013 , Mass media and culture
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/5733 , vital:20987
- Description: The aim of the study is to analyze the representation of isiXhosa traditional culture through the coverage on media coverage as the topic suggests following a legal battle on the removal of the remains of Mandela‘s children in the year 2013. The online news articles selected in this study covered issues since Mandela was in and out of hospital. The articles covered are those of local newspaper, The Herald-online- as it is based in the Eastern Cape and has covered more on the traditional beliefs, understanding and following such rituals. The aim of the study is to explore and describe the perceptions and experiences of people around the family feud and the legal battle on the removal of those remains. It will also emphasize on the representation of the media on this problem and how Xhosa tradition can be affected and also compare other newspaper articles on their coverage.
- Full Text:
- Date Issued: 2014
A critical discourse analysis (CDA) of the contesting discourses articulated by the ANC and the news media in the City Press coverage of The Spear
- Authors: Egglestone, Tia Ashleigh
- Date: 2014
- Subjects: Murray, Brett , African National Congress , Mass media -- Political aspects -- South Africa , Press and politics -- South Africa , Freedom of the press -- South Africa , Mass media policy -- South Africa , Newspapers -- Objectivity , Critical discourse analysis , South Africa -- Politics and government -- 1994-
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3526 , http://hdl.handle.net/10962/d1012975
- Description: This research focuses on the controversy surrounding the exhibition and media publication of Brett Murray’s painting, The Spear of the Nation (May 2012). It takes the form of a qualitative Critical Discourse Analysis (CDA), underpinned by Fairclough’s (1995) three-dimensional approach, to investigate how the contesting discourses articulated by the ruling political party (the ANC) and the news media have been negotiated in the City Press coverage in response to the painting. While the contestation was fought ostensibly on constitutional grounds, it arguably serves as an illustrative moment of the deeply ideological debate occurring in South Africa between the government and the national media industry regarding media diversity, transformation and democracy. It points to the lines of fracture in the broader political and social space. Informed by Foucault’s conceptualisation of discourse and the role of power in the production of knowledge and ‘truth’, this study aims to expose the discourses articulated and contested in order to make inferences about the various ‘truths’ the ANC and the media make of the democratic role of the press in a contemporary South Africa. The sample consists of five reports intended to represent the media’s responses and four articles that prominently articulate the ANC’s responses. The analysis, which draws on strategies from within critical linguists and media studies, is confined to these nine purposively sampled from the City Press online newspaper texts published between 13 May 2012 and 13 June 2012. Findings suggest the ANC legitimise expectations for the media to engage in a collaborative role in order to serve the ‘national interest’. Conversely, the media advocate for a monitorial press to justify serving the ‘public interest’. This research is envisioned to be valuable for both sets of stakeholders in developing richer understandings relevant to issues of any regulation to be debated. It forms part of a larger project on Media Policy and Democracy which seeks to contribute to media diversity and transformation, and to develop the quality of democracy in South Africa.
- Full Text:
- Date Issued: 2014
- Authors: Egglestone, Tia Ashleigh
- Date: 2014
- Subjects: Murray, Brett , African National Congress , Mass media -- Political aspects -- South Africa , Press and politics -- South Africa , Freedom of the press -- South Africa , Mass media policy -- South Africa , Newspapers -- Objectivity , Critical discourse analysis , South Africa -- Politics and government -- 1994-
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3526 , http://hdl.handle.net/10962/d1012975
- Description: This research focuses on the controversy surrounding the exhibition and media publication of Brett Murray’s painting, The Spear of the Nation (May 2012). It takes the form of a qualitative Critical Discourse Analysis (CDA), underpinned by Fairclough’s (1995) three-dimensional approach, to investigate how the contesting discourses articulated by the ruling political party (the ANC) and the news media have been negotiated in the City Press coverage in response to the painting. While the contestation was fought ostensibly on constitutional grounds, it arguably serves as an illustrative moment of the deeply ideological debate occurring in South Africa between the government and the national media industry regarding media diversity, transformation and democracy. It points to the lines of fracture in the broader political and social space. Informed by Foucault’s conceptualisation of discourse and the role of power in the production of knowledge and ‘truth’, this study aims to expose the discourses articulated and contested in order to make inferences about the various ‘truths’ the ANC and the media make of the democratic role of the press in a contemporary South Africa. The sample consists of five reports intended to represent the media’s responses and four articles that prominently articulate the ANC’s responses. The analysis, which draws on strategies from within critical linguists and media studies, is confined to these nine purposively sampled from the City Press online newspaper texts published between 13 May 2012 and 13 June 2012. Findings suggest the ANC legitimise expectations for the media to engage in a collaborative role in order to serve the ‘national interest’. Conversely, the media advocate for a monitorial press to justify serving the ‘public interest’. This research is envisioned to be valuable for both sets of stakeholders in developing richer understandings relevant to issues of any regulation to be debated. It forms part of a larger project on Media Policy and Democracy which seeks to contribute to media diversity and transformation, and to develop the quality of democracy in South Africa.
- Full Text:
- Date Issued: 2014
A critical history of the rise and fall of the first ever independently owned Matabeleland publication in Zimbabwe : the case of The Southern Star
- Authors: Moyo, Chelesani
- Date: 2014
- Subjects: Southern Star (Zimbabwe) , Matabeleland (Zimbabwe) -- History -- Autonomy and independence movements , Mass media and nationalism -- Zimbabwe , Mass media -- Political aspects -- Zimbabwe , Press and politics -- Zimbabwe , Newspaper publishing -- Management , Newspapers -- Marketing
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3530 , http://hdl.handle.net/10962/d1013273
- Description: This research is premised on the understanding that alternative forms of media emerge to deal with specific ideological projects and, as such, must be seen as satisfying a specific need at a specific point in time. Using the case of a weekly newspaper, The Southern Star which was in circulation from January 2012 to June 2012, this study sought to understand the factors that led to the establishment of the newspaper, what it sought to achieve, how it went about putting that into practice, its message in relation to debates emanating from the ‘Matabeleland Question’ and also the factors that led to the its collapse. In order to address my research questions, I adopted a two stage research design qualitative content analysis and semi structured in depth interviews. In locating the study within the qualitative epistemic understanding of research, it was clear from the qualitative content analysis of 13 editions of the publication and in depth interviews held with 15 respondents that the newspaper was set up with the aim of serving a marginalised section of the population (in this instance the Ndebele) by providing them with a platform to articulate issues affecting them. It also sought to ‘speak’ the ‘unspoken’ within the mainstream media by focusing on Matabeleland identity politics. It achieved this by creating content around the Gukurahundi genocide, Matabeleland development, Matabeleland history and Matabeleland heroes. The newspaper also sought to emancipate the people from the South by advocated for social, cultural, economic and political justice as a resolution to the ‘Matabeleland Question’. However, the newspaper failed to sustain operations due to lack of advertising revenue. As a result of the constraining political environment in which the newspaper operated, potential advertisers were afraid of placing advertisements in the newspaper because of the nature of the content produced, which in view of Zimbabwe’s rival ethnic history, could easily be labelled ethnically divisive. Also, being a new player in the market worked to their disadvantage as prospective advertisers opted to place their adverts in “tried and tested” publications (Zimpapers and Alpha Media Holdings). Additionally, because of poor management, roles were not clearly defined and hence the newspaper failed to operate as a business enterprise. As noted during interviews with junior reporters, there was little or no experience at management level. The paper lacked a coordinated circulation strategy and from inception, was never officially launched, which resulted in the failure to reach significant audiences.
- Full Text:
- Date Issued: 2014
- Authors: Moyo, Chelesani
- Date: 2014
- Subjects: Southern Star (Zimbabwe) , Matabeleland (Zimbabwe) -- History -- Autonomy and independence movements , Mass media and nationalism -- Zimbabwe , Mass media -- Political aspects -- Zimbabwe , Press and politics -- Zimbabwe , Newspaper publishing -- Management , Newspapers -- Marketing
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3530 , http://hdl.handle.net/10962/d1013273
- Description: This research is premised on the understanding that alternative forms of media emerge to deal with specific ideological projects and, as such, must be seen as satisfying a specific need at a specific point in time. Using the case of a weekly newspaper, The Southern Star which was in circulation from January 2012 to June 2012, this study sought to understand the factors that led to the establishment of the newspaper, what it sought to achieve, how it went about putting that into practice, its message in relation to debates emanating from the ‘Matabeleland Question’ and also the factors that led to the its collapse. In order to address my research questions, I adopted a two stage research design qualitative content analysis and semi structured in depth interviews. In locating the study within the qualitative epistemic understanding of research, it was clear from the qualitative content analysis of 13 editions of the publication and in depth interviews held with 15 respondents that the newspaper was set up with the aim of serving a marginalised section of the population (in this instance the Ndebele) by providing them with a platform to articulate issues affecting them. It also sought to ‘speak’ the ‘unspoken’ within the mainstream media by focusing on Matabeleland identity politics. It achieved this by creating content around the Gukurahundi genocide, Matabeleland development, Matabeleland history and Matabeleland heroes. The newspaper also sought to emancipate the people from the South by advocated for social, cultural, economic and political justice as a resolution to the ‘Matabeleland Question’. However, the newspaper failed to sustain operations due to lack of advertising revenue. As a result of the constraining political environment in which the newspaper operated, potential advertisers were afraid of placing advertisements in the newspaper because of the nature of the content produced, which in view of Zimbabwe’s rival ethnic history, could easily be labelled ethnically divisive. Also, being a new player in the market worked to their disadvantage as prospective advertisers opted to place their adverts in “tried and tested” publications (Zimpapers and Alpha Media Holdings). Additionally, because of poor management, roles were not clearly defined and hence the newspaper failed to operate as a business enterprise. As noted during interviews with junior reporters, there was little or no experience at management level. The paper lacked a coordinated circulation strategy and from inception, was never officially launched, which resulted in the failure to reach significant audiences.
- Full Text:
- Date Issued: 2014
A critical study in the management of the female adolescent voice
- Authors: Goosen, Gysbert Jacobus
- Date: 2014
- Subjects: Voice, Change of , Women singers
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: http://hdl.handle.net/10948/3438 , vital:20430
- Description: This treatise is a qualitative study that critically explores a current body of knowledge significant to the development of the female adolescent voice. The female adolescent voice is a field that is relatively under-researched in comparison to the male adolescent voice, although research in this regard has shown an increase in interest in the last two decades (Gackle 2011: 11). However, information related to the male adolescent voice still far outweighs the female adolescent voice. This study, through the use of six secondary objectives, identifies and highlights areas of the female adolescent voice development, where much of the current research lacks depth and insight. It therefore analyses and compares applicable literature in an attempt principally to contribute to a more structured and academic approach in this field. Insight into the auditory effects that occur during physiological mutation is further supported by investigating the functioning of the female voice registers and the respective influences of these on the different phases of vocal development of the female adolescent. The assistance and expertise of the conductor in this process, as well as in common areas such as voice classification, auditioning, voice placement, and repertoire selection are investigated to further consolidate and compare possible interventions for problems pertaining specifically to the female adolescent voice. The study concludes with a summary of the treatise and proposes suggestions for further study in this field.
- Full Text:
- Date Issued: 2014
- Authors: Goosen, Gysbert Jacobus
- Date: 2014
- Subjects: Voice, Change of , Women singers
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: http://hdl.handle.net/10948/3438 , vital:20430
- Description: This treatise is a qualitative study that critically explores a current body of knowledge significant to the development of the female adolescent voice. The female adolescent voice is a field that is relatively under-researched in comparison to the male adolescent voice, although research in this regard has shown an increase in interest in the last two decades (Gackle 2011: 11). However, information related to the male adolescent voice still far outweighs the female adolescent voice. This study, through the use of six secondary objectives, identifies and highlights areas of the female adolescent voice development, where much of the current research lacks depth and insight. It therefore analyses and compares applicable literature in an attempt principally to contribute to a more structured and academic approach in this field. Insight into the auditory effects that occur during physiological mutation is further supported by investigating the functioning of the female voice registers and the respective influences of these on the different phases of vocal development of the female adolescent. The assistance and expertise of the conductor in this process, as well as in common areas such as voice classification, auditioning, voice placement, and repertoire selection are investigated to further consolidate and compare possible interventions for problems pertaining specifically to the female adolescent voice. The study concludes with a summary of the treatise and proposes suggestions for further study in this field.
- Full Text:
- Date Issued: 2014
A customer service strategy for Ngqura Container Terminal
- Mtshiselwa, Mkhululi Terrence
- Authors: Mtshiselwa, Mkhululi Terrence
- Date: 2014
- Subjects: SERVQUAL (Service quality framework) , Customer services -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/8955 , vital:26446
- Description: The container terminals play an increasingly important role in the economy of many countries. In today’s global competitive environment delivering quality service is considered as an essential strategy for success and survival. In the very competitive container terminals, service quality is important in attracting and retaining customers. The shipping companies are interested in speed and reliability from the terminals. The time a ship stays in a port must be minimised, and, therefore, the handling of containers must be executed in a fast and reliable way. The importance of customer service as a competitive strategy in container terminal has long been recognised. The growth in container volumes and higher productivity by Ngqura Container Terminal has created greater demand than before from its customers in the shipping business. The current growth in container volumes and increased customer demand has made the situation at NCT less encouraging at times, due to additional traffic of vessels awaiting to dock at the port creating congestion problems; resulting in unplanned lengthy dock occupation by vessels and the current status quo is affecting NCT strategy in terms of arrival docking and providing a quick response to customers. The Ngqura terminal is under increasing pressure from its customers and stakeholders to demonstrate that their services are customer-focused and that continuous performance improvement is being delivered. Therefore, a literature study and questionnaire survey forms the main input for this research combined with interviews with terminal managers. The purpose of this research is to examine the service quality concepts and offer an operational approach for the measurement of the quality of Ngqura Container Terminal services. The main research problem in this study was to identify customer service strategies that could be applied by Ngqura Container Terminal in order to maintain and exceed its business growth as well as customer expectations? The study employed the SERVQUAL model as a measuring tool in establishing the customers’ general expectations of a service and their perceptions of the service received at Ngqura Container Terminal. The five elements of SERVQUAL, which are tangibles, reliability, responsiveness, assurance, and empathy, were used to deal with and solve the main problem. Below are the sub-problems that have been identified in order to investigate and develop a research strategy: What is the customer’s perception of service quality at NCT?; What are the specific customer service requirements of NCT’s customers?; Does NCT’s service operations performance enable it to fulfill its customer service requirements?; How can the performance gap between customer service requirements and service operations performance be bridged?; Which service quality elements are important to customers for container terminals? This study wants to concentrate on the customers’ perception and evaluation toward service performance in Ngqura Container Terminal.
- Full Text:
- Date Issued: 2014
- Authors: Mtshiselwa, Mkhululi Terrence
- Date: 2014
- Subjects: SERVQUAL (Service quality framework) , Customer services -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/8955 , vital:26446
- Description: The container terminals play an increasingly important role in the economy of many countries. In today’s global competitive environment delivering quality service is considered as an essential strategy for success and survival. In the very competitive container terminals, service quality is important in attracting and retaining customers. The shipping companies are interested in speed and reliability from the terminals. The time a ship stays in a port must be minimised, and, therefore, the handling of containers must be executed in a fast and reliable way. The importance of customer service as a competitive strategy in container terminal has long been recognised. The growth in container volumes and higher productivity by Ngqura Container Terminal has created greater demand than before from its customers in the shipping business. The current growth in container volumes and increased customer demand has made the situation at NCT less encouraging at times, due to additional traffic of vessels awaiting to dock at the port creating congestion problems; resulting in unplanned lengthy dock occupation by vessels and the current status quo is affecting NCT strategy in terms of arrival docking and providing a quick response to customers. The Ngqura terminal is under increasing pressure from its customers and stakeholders to demonstrate that their services are customer-focused and that continuous performance improvement is being delivered. Therefore, a literature study and questionnaire survey forms the main input for this research combined with interviews with terminal managers. The purpose of this research is to examine the service quality concepts and offer an operational approach for the measurement of the quality of Ngqura Container Terminal services. The main research problem in this study was to identify customer service strategies that could be applied by Ngqura Container Terminal in order to maintain and exceed its business growth as well as customer expectations? The study employed the SERVQUAL model as a measuring tool in establishing the customers’ general expectations of a service and their perceptions of the service received at Ngqura Container Terminal. The five elements of SERVQUAL, which are tangibles, reliability, responsiveness, assurance, and empathy, were used to deal with and solve the main problem. Below are the sub-problems that have been identified in order to investigate and develop a research strategy: What is the customer’s perception of service quality at NCT?; What are the specific customer service requirements of NCT’s customers?; Does NCT’s service operations performance enable it to fulfill its customer service requirements?; How can the performance gap between customer service requirements and service operations performance be bridged?; Which service quality elements are important to customers for container terminals? This study wants to concentrate on the customers’ perception and evaluation toward service performance in Ngqura Container Terminal.
- Full Text:
- Date Issued: 2014
A decentralized multi-agent based network management system for ICT4D networks
- Authors: Matebese, Sithembiso
- Date: 2014
- Subjects: Microsoft� Word 2010
- Language: English
- Type: Thesis , Masters , MSc (Computer Science)
- Identifier: vital:11398 , http://hdl.handle.net/10353/d1019853
- Description: Network management is fundamental for assuring high quality services required by each user for the effective utilization of network resources. In this research, we propose the use of a decentralized, flexible and scalable Multi-Agent based system to monitor and manage rural broadband networks adaptively and efficiently. This mechanism is not novel as it has been used for high-speed, large-scale and distributed networks. This research investigates how software agents could collaborate in the process of managing rural broadband networks and developing an autonomous decentralized network management mechanism. In rural networks, network management is a challenging task because of lack of a reliable power supply, greater geographical distances, topographical barriers, and lack of technical support as well as computer repair facilities. This renders the network monitoring function complex and difficult. Since software agents are goal-driven, this research aims at developing a distributed management system that efficiently diagnoses errors on a given network and autonomously invokes effective changes to the network based on the goals defined on system agents. To make this possible, the Siyakhula Living Lab network was used as the research case study and existing network management system was reviewed and used as the basis for the proposed network management system. The proposed network management system uses JADE framework, Hyperic-Sigar API, Java networking programming and JESS scripting language to implement reasoning software agents. JADE and Java were used to develop the system agents with FIPA specifications. Hyperic-Sigar was used to collect the device information, Jpcap was used for collecting device network information and JESS for developing a rule engine for agents to reason about the device and network state. Even though the system is developed with Siyakhula Living Lab considerations, technically it can be used in any small-medium network because it is adaptable and scalable to various network infrastructure requirements. The proposed system consists of two types of agents, the MasterAgent and the NodeAgent. The MasterAgent resides on the device that has the agent platform and NodeAgent resides on devices connected to the network. The MasterAgent provides the network administrator with graphical and web user interfaces so that they can view network analysis and statistics. The agent platform provides agents with the executing environment and every agent, when started, is added to this platform. This system is platform independent as it has been tested on Linux, Mac and Windows platforms. The implemented system has been found to provide a suitable network management function to rural broadband networks that is: scalable in that more node agents can be added to the system to accommodate more devices in the network; autonomous in the ability to reason and execute actions based on the defined rules; fault-tolerant through being designed as a decentralized platform thereby reducing the Single Point of Failure (SPOF) in the system.
- Full Text:
- Date Issued: 2014
- Authors: Matebese, Sithembiso
- Date: 2014
- Subjects: Microsoft� Word 2010
- Language: English
- Type: Thesis , Masters , MSc (Computer Science)
- Identifier: vital:11398 , http://hdl.handle.net/10353/d1019853
- Description: Network management is fundamental for assuring high quality services required by each user for the effective utilization of network resources. In this research, we propose the use of a decentralized, flexible and scalable Multi-Agent based system to monitor and manage rural broadband networks adaptively and efficiently. This mechanism is not novel as it has been used for high-speed, large-scale and distributed networks. This research investigates how software agents could collaborate in the process of managing rural broadband networks and developing an autonomous decentralized network management mechanism. In rural networks, network management is a challenging task because of lack of a reliable power supply, greater geographical distances, topographical barriers, and lack of technical support as well as computer repair facilities. This renders the network monitoring function complex and difficult. Since software agents are goal-driven, this research aims at developing a distributed management system that efficiently diagnoses errors on a given network and autonomously invokes effective changes to the network based on the goals defined on system agents. To make this possible, the Siyakhula Living Lab network was used as the research case study and existing network management system was reviewed and used as the basis for the proposed network management system. The proposed network management system uses JADE framework, Hyperic-Sigar API, Java networking programming and JESS scripting language to implement reasoning software agents. JADE and Java were used to develop the system agents with FIPA specifications. Hyperic-Sigar was used to collect the device information, Jpcap was used for collecting device network information and JESS for developing a rule engine for agents to reason about the device and network state. Even though the system is developed with Siyakhula Living Lab considerations, technically it can be used in any small-medium network because it is adaptable and scalable to various network infrastructure requirements. The proposed system consists of two types of agents, the MasterAgent and the NodeAgent. The MasterAgent resides on the device that has the agent platform and NodeAgent resides on devices connected to the network. The MasterAgent provides the network administrator with graphical and web user interfaces so that they can view network analysis and statistics. The agent platform provides agents with the executing environment and every agent, when started, is added to this platform. This system is platform independent as it has been tested on Linux, Mac and Windows platforms. The implemented system has been found to provide a suitable network management function to rural broadband networks that is: scalable in that more node agents can be added to the system to accommodate more devices in the network; autonomous in the ability to reason and execute actions based on the defined rules; fault-tolerant through being designed as a decentralized platform thereby reducing the Single Point of Failure (SPOF) in the system.
- Full Text:
- Date Issued: 2014
A Diagnosis of School Governance in the Eastern Cape Province
- Authors: Ngonzo, Mthunywa Lawrence
- Date: 2014
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10353/1016 , vital:26518
- Description: This research conducts a diagnosis of school governance in the Eastern Cape Province with the overriding objective of determining the appropriate strategies that can be recommended for improving the effectiveness of school governance in the Eastern Cape Province. In a bid to achieve this overriding objective, the entire research process was guided by the research objectives and questions that examined; factors determining the effectiveness of school governance in the Eastern Cape Province, the effects of effective governance on performance of schools in the Eastern Cape Province, and the strategies which are used for improving school governance in the Eastern Cape Province. Although the secondary research was accomplished through the review and analysis of the relevant literatures and theories, the qualitative research approach was used in the primary research process. The findings of the study indicate that achieving effective school governance in the Eastern Cape Province is far from being attained for the reason that in terms of the applications of the principles for effective governance, the study reveals that the effective implementations of these principles in the Eastern Cape schools is marred by factors that include; lack of clear outline of SGBs, poor briefing of members about the roles of SGBs, poor consultations of members and stakeholders, poor representation of stakeholders, poor support of school’s staff, lack of well defined vision, and poor documentations of SGBs’ roles. Despite the fact that the findings of the study also indicate that the practices in the Eastern Cape schools are inappropriate for enhancing effective school governance, it was noted that there is still ineffective application of the strategies which can be used for improving school governance in the Eastern Cape Province. As the findings indicate, this certainly undermines the effectiveness of school governance in the Eastern Cape Province. While drawing from both the primary and secondary findings of the study, it was recommended that the school governing bodies in the Eastern Cape Province must; apply the six main principles for effective governance, apply the core components or pillars of good governance and consider implementing the strategies encompassing; considering that common interest and core business issues is one of the strategies, ensuring that the roles, objectives, functions and powers of the school council are clearly understood by all council members, effective planning, policy making and reporting, induction and professional development and learning, communication and information sharing, monitoring, evaluation and improvement. It was suggested that the suggested area for further study would be; “The effects of stakeholders’ involvement on the performance of School Governing Bodies.”
- Full Text:
- Date Issued: 2014
- Authors: Ngonzo, Mthunywa Lawrence
- Date: 2014
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10353/1016 , vital:26518
- Description: This research conducts a diagnosis of school governance in the Eastern Cape Province with the overriding objective of determining the appropriate strategies that can be recommended for improving the effectiveness of school governance in the Eastern Cape Province. In a bid to achieve this overriding objective, the entire research process was guided by the research objectives and questions that examined; factors determining the effectiveness of school governance in the Eastern Cape Province, the effects of effective governance on performance of schools in the Eastern Cape Province, and the strategies which are used for improving school governance in the Eastern Cape Province. Although the secondary research was accomplished through the review and analysis of the relevant literatures and theories, the qualitative research approach was used in the primary research process. The findings of the study indicate that achieving effective school governance in the Eastern Cape Province is far from being attained for the reason that in terms of the applications of the principles for effective governance, the study reveals that the effective implementations of these principles in the Eastern Cape schools is marred by factors that include; lack of clear outline of SGBs, poor briefing of members about the roles of SGBs, poor consultations of members and stakeholders, poor representation of stakeholders, poor support of school’s staff, lack of well defined vision, and poor documentations of SGBs’ roles. Despite the fact that the findings of the study also indicate that the practices in the Eastern Cape schools are inappropriate for enhancing effective school governance, it was noted that there is still ineffective application of the strategies which can be used for improving school governance in the Eastern Cape Province. As the findings indicate, this certainly undermines the effectiveness of school governance in the Eastern Cape Province. While drawing from both the primary and secondary findings of the study, it was recommended that the school governing bodies in the Eastern Cape Province must; apply the six main principles for effective governance, apply the core components or pillars of good governance and consider implementing the strategies encompassing; considering that common interest and core business issues is one of the strategies, ensuring that the roles, objectives, functions and powers of the school council are clearly understood by all council members, effective planning, policy making and reporting, induction and professional development and learning, communication and information sharing, monitoring, evaluation and improvement. It was suggested that the suggested area for further study would be; “The effects of stakeholders’ involvement on the performance of School Governing Bodies.”
- Full Text:
- Date Issued: 2014
A discussion and comparison of company legislation and tax legislation in South Africa, in relation to amalgamations and mergers
- Authors: Sloane, Justin
- Date: 2014
- Subjects: Corporation law -- South Africa , Taxation -- Law and legislation -- South Africa , Consolidation and merger of corporations -- South Africa , Income tax -- South Africa , Capital gains tax -- South Africa , Value-added tax -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:908 , http://hdl.handle.net/10962/d1013028
- Description: In his 2012 Budget Review, the Minister of Finance, Pravin Gordhan acknowledged that the introduction of the "new" Companies Act had given rise to certain anomalies in relation to tax and subsequently announced that the South African government would undertake to review the nature of company mergers, acquisitions and other restructurings with the view of possibly amending the Income Tax Act and/or the "new" Companies Act, to bring the two legislations in line with one another. These anomalies give rise to the present research. The literature reviewed in the present research revealed and identified the inconsistencies that exist between the "new" Companies Act, 71 of 2008 and the Income Tax Act, 58 of 1962, specifically the inconsistencies that exist in respect of the newly introduced amalgamation or merger provisions as set out in the "new" Companies Act. Moreover, this research was undertaken to identify the potential tax implications insofar as they relate to amalgamation transactions and, in particular, the potential tax implications where such transactions, because of the anomalies, fall outside the ambit section 44 of the Income Tax Act, which would in normal circumstances provide for tax "rollover relief". In this regard, the present research identified the possible income tax, capital gains tax, value-added tax, transfer duty tax and securities transfer tax affected by an amalgamation transaction, on the assumption that the "rollover relief" in section 44 of the Income Tax Act does not apply.
- Full Text:
- Date Issued: 2014
- Authors: Sloane, Justin
- Date: 2014
- Subjects: Corporation law -- South Africa , Taxation -- Law and legislation -- South Africa , Consolidation and merger of corporations -- South Africa , Income tax -- South Africa , Capital gains tax -- South Africa , Value-added tax -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:908 , http://hdl.handle.net/10962/d1013028
- Description: In his 2012 Budget Review, the Minister of Finance, Pravin Gordhan acknowledged that the introduction of the "new" Companies Act had given rise to certain anomalies in relation to tax and subsequently announced that the South African government would undertake to review the nature of company mergers, acquisitions and other restructurings with the view of possibly amending the Income Tax Act and/or the "new" Companies Act, to bring the two legislations in line with one another. These anomalies give rise to the present research. The literature reviewed in the present research revealed and identified the inconsistencies that exist between the "new" Companies Act, 71 of 2008 and the Income Tax Act, 58 of 1962, specifically the inconsistencies that exist in respect of the newly introduced amalgamation or merger provisions as set out in the "new" Companies Act. Moreover, this research was undertaken to identify the potential tax implications insofar as they relate to amalgamation transactions and, in particular, the potential tax implications where such transactions, because of the anomalies, fall outside the ambit section 44 of the Income Tax Act, which would in normal circumstances provide for tax "rollover relief". In this regard, the present research identified the possible income tax, capital gains tax, value-added tax, transfer duty tax and securities transfer tax affected by an amalgamation transaction, on the assumption that the "rollover relief" in section 44 of the Income Tax Act does not apply.
- Full Text:
- Date Issued: 2014
A field investigation into the impact of task demands on worker responses in the South African forestry silviculture sector
- Authors: Parker, Rhiannon Jennifer
- Date: 2014
- Subjects: Forests and forestry -- South Africa -- KwaZulu-Natal , Blue collar workers -- South Africa -- KwaZulu-Natal , Manual work -- South Africa -- KwaZulu-Natal , Work -- Physiological aspects , Human mechanics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5157 , http://hdl.handle.net/10962/d1015645
- Description: Background: In South Africa, limited research has focused on the task demands and workers responses associated with forestry silviculture work, particularly pitting and planting. The methods currently in use are manual, but despite our lack of understanding of the existing demands, advances in forestry engineering have resulted in an introduction of semi-mechanised versions of these tasks. This project aimed to compare the task demands of silviculture tasks using the current manual techniques and the more modern, semi-mechanised techniques. Methods: A holistic investigation focused on the worker characteristics of a sample of black male pitters and black female planters from the Kwa-Zulu Natal forestry industry, as well as biomechanical (spinal kinematics and L5/S1 forces), physiological (heart rate, oxygen consumption and energy expenditure) and psychophysical (ratings of perceived exertion and body discomfort) responses associated with manual and semi-mechanised pitting and planting. Results: The pitting task saw significant improvements in the spinal kinematic measures as a result of the increased mechanisation, with eight of the 16 recorded variables decreasing to a lower level of risk classification. Physiologically, the manual task was associated with a mean heart rate of 157 bt.min⁻¹ and absolute energy expenditure of 11.27 kcal.min⁻¹, which were not found to be significantly different to the values of 143 bt.min⁻¹ and 9.8 kcal.min⁻¹ recorded during the semi-mechanised technique. Psychophysical responses indicated that the workers perceived manual pitting to be more physically demanding than the semi-mechanised method. The manual and semi-mechanised planting tasks were, in general, found to be acceptable from a spinal kinematics perspective, with the majority of variables classified as low risk. However, the maximum sagittal angle was reduced by more than 20 degrees as a result of the new equipment. The physiological and psychophysical demands associated with manual planting were found to be within acceptable limits. Conclusion: In terms of pitting, it can tentatively be concluded that the semi-mechanised technique is better than the manual one, based on the biomechanical and psychophysical findings, however physiological demands require further investigation. When considering the planting techniques, the semi-mechanised method showed a slight improvement from the biomechanical perspective, but further physiological and psychophysical investigations are needed.
- Full Text:
- Date Issued: 2014
- Authors: Parker, Rhiannon Jennifer
- Date: 2014
- Subjects: Forests and forestry -- South Africa -- KwaZulu-Natal , Blue collar workers -- South Africa -- KwaZulu-Natal , Manual work -- South Africa -- KwaZulu-Natal , Work -- Physiological aspects , Human mechanics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5157 , http://hdl.handle.net/10962/d1015645
- Description: Background: In South Africa, limited research has focused on the task demands and workers responses associated with forestry silviculture work, particularly pitting and planting. The methods currently in use are manual, but despite our lack of understanding of the existing demands, advances in forestry engineering have resulted in an introduction of semi-mechanised versions of these tasks. This project aimed to compare the task demands of silviculture tasks using the current manual techniques and the more modern, semi-mechanised techniques. Methods: A holistic investigation focused on the worker characteristics of a sample of black male pitters and black female planters from the Kwa-Zulu Natal forestry industry, as well as biomechanical (spinal kinematics and L5/S1 forces), physiological (heart rate, oxygen consumption and energy expenditure) and psychophysical (ratings of perceived exertion and body discomfort) responses associated with manual and semi-mechanised pitting and planting. Results: The pitting task saw significant improvements in the spinal kinematic measures as a result of the increased mechanisation, with eight of the 16 recorded variables decreasing to a lower level of risk classification. Physiologically, the manual task was associated with a mean heart rate of 157 bt.min⁻¹ and absolute energy expenditure of 11.27 kcal.min⁻¹, which were not found to be significantly different to the values of 143 bt.min⁻¹ and 9.8 kcal.min⁻¹ recorded during the semi-mechanised technique. Psychophysical responses indicated that the workers perceived manual pitting to be more physically demanding than the semi-mechanised method. The manual and semi-mechanised planting tasks were, in general, found to be acceptable from a spinal kinematics perspective, with the majority of variables classified as low risk. However, the maximum sagittal angle was reduced by more than 20 degrees as a result of the new equipment. The physiological and psychophysical demands associated with manual planting were found to be within acceptable limits. Conclusion: In terms of pitting, it can tentatively be concluded that the semi-mechanised technique is better than the manual one, based on the biomechanical and psychophysical findings, however physiological demands require further investigation. When considering the planting techniques, the semi-mechanised method showed a slight improvement from the biomechanical perspective, but further physiological and psychophysical investigations are needed.
- Full Text:
- Date Issued: 2014
A formalised ontology for network attack classification
- Authors: Van Heerden, Renier Pelser
- Date: 2014
- Subjects: Computer networks -- Security measures Computer security Computer crimes -- Investigation Computer crimes -- Prevention
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4691 , http://hdl.handle.net/10962/d1011603
- Description: One of the most popular attack vectors against computers are their network connections. Attacks on computers through their networks are commonplace and have various levels of complexity. This research formally describes network-based computer attacks in the form of a story, formally and within an ontology. The ontology categorises network attacks where attack scenarios are the focal class. This class consists of: Denial-of- Service, Industrial Espionage, Web Defacement, Unauthorised Data Access, Financial Theft, Industrial Sabotage, Cyber-Warfare, Resource Theft, System Compromise, and Runaway Malware. This ontology was developed by building a taxonomy and a temporal network attack model. Network attack instances (also know as individuals) are classified according to their respective attack scenarios, with the use of an automated reasoner within the ontology. The automated reasoner deductions are verified formally; and via the automated reasoner, a relaxed set of scenarios is determined, which is relevant in a near real-time environment. A prototype system (called Aeneas) was developed to classify network-based attacks. Aeneas integrates the sensors into a detection system that can classify network attacks in a near real-time environment. To verify the ontology and the prototype Aeneas, a virtual test bed was developed in which network-based attacks were generated to verify the detection system. Aeneas was able to detect incoming attacks and classify them according to their scenario. The novel part of this research is the attack scenarios that are described in the form of a story, as well as formally and in an ontology. The ontology is used in a novel way to determine to which class attack instances belong and how the network attack ontology is affected in a near real-time environment.
- Full Text:
- Date Issued: 2014
- Authors: Van Heerden, Renier Pelser
- Date: 2014
- Subjects: Computer networks -- Security measures Computer security Computer crimes -- Investigation Computer crimes -- Prevention
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4691 , http://hdl.handle.net/10962/d1011603
- Description: One of the most popular attack vectors against computers are their network connections. Attacks on computers through their networks are commonplace and have various levels of complexity. This research formally describes network-based computer attacks in the form of a story, formally and within an ontology. The ontology categorises network attacks where attack scenarios are the focal class. This class consists of: Denial-of- Service, Industrial Espionage, Web Defacement, Unauthorised Data Access, Financial Theft, Industrial Sabotage, Cyber-Warfare, Resource Theft, System Compromise, and Runaway Malware. This ontology was developed by building a taxonomy and a temporal network attack model. Network attack instances (also know as individuals) are classified according to their respective attack scenarios, with the use of an automated reasoner within the ontology. The automated reasoner deductions are verified formally; and via the automated reasoner, a relaxed set of scenarios is determined, which is relevant in a near real-time environment. A prototype system (called Aeneas) was developed to classify network-based attacks. Aeneas integrates the sensors into a detection system that can classify network attacks in a near real-time environment. To verify the ontology and the prototype Aeneas, a virtual test bed was developed in which network-based attacks were generated to verify the detection system. Aeneas was able to detect incoming attacks and classify them according to their scenario. The novel part of this research is the attack scenarios that are described in the form of a story, as well as formally and in an ontology. The ontology is used in a novel way to determine to which class attack instances belong and how the network attack ontology is affected in a near real-time environment.
- Full Text:
- Date Issued: 2014
A framework for business leadership in Africa
- Authors: Whitley, Elwyn
- Date: 2014
- Subjects: Leadership -- Africa Success in business , Management -- Africa Business Industrial management -- Africa
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: http://hdl.handle.net/10948/45814 , vital:39219
- Description: In a fast moving, rapidly changing and highly competitive world the importance of strong leadership in both government and business cannot be over emphasised. The realisation that leadership is necessary for the organisation’s success and is key for the organisation’s survival (Alimo-Metcalfe and Alban- Metcalfe, 2008) is evident in the increasing focus on the concept over the last three to four decades. As the world becomes more of a ‘global village’ adapting to doing business in this new environment will require a leader who not only has the traditional skills set but also has the additional knowledge, skills and “mindset to navigate through the complexities brought on by moving beyond one's traditional borders” (Cohen, 2010. p. 3). This is of particular importance to Africa with the influx of foreign investors attracted by the growth opportunities that Africa offers, looking to expand their markets and in doing so imposing western norms and standards on local operations, in complex environments. Unfortunately Western leadership theories have not always been successful as Africans have found that in order to embrace Western ideals they need to relinquish some of their own beliefs. This highlights an opportunity to explore a possible hybrid leadership approach that harmonises the Western approach that is based on facts, logic and the nature of reality with the African humanistic orientation. The main aim of this study is to research the concept, principles, and characteristics of a small sample of business leaders in Africa in order to identify the factors that contribute to the leader’s success in a global business operating in Africa. By applying qualitative research methodology which includes an individual narrative written by each Managing Director, semistructured interviews and focus groups, a framework for business leadership in Africa was developed.
- Full Text:
- Date Issued: 2014
- Authors: Whitley, Elwyn
- Date: 2014
- Subjects: Leadership -- Africa Success in business , Management -- Africa Business Industrial management -- Africa
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: http://hdl.handle.net/10948/45814 , vital:39219
- Description: In a fast moving, rapidly changing and highly competitive world the importance of strong leadership in both government and business cannot be over emphasised. The realisation that leadership is necessary for the organisation’s success and is key for the organisation’s survival (Alimo-Metcalfe and Alban- Metcalfe, 2008) is evident in the increasing focus on the concept over the last three to four decades. As the world becomes more of a ‘global village’ adapting to doing business in this new environment will require a leader who not only has the traditional skills set but also has the additional knowledge, skills and “mindset to navigate through the complexities brought on by moving beyond one's traditional borders” (Cohen, 2010. p. 3). This is of particular importance to Africa with the influx of foreign investors attracted by the growth opportunities that Africa offers, looking to expand their markets and in doing so imposing western norms and standards on local operations, in complex environments. Unfortunately Western leadership theories have not always been successful as Africans have found that in order to embrace Western ideals they need to relinquish some of their own beliefs. This highlights an opportunity to explore a possible hybrid leadership approach that harmonises the Western approach that is based on facts, logic and the nature of reality with the African humanistic orientation. The main aim of this study is to research the concept, principles, and characteristics of a small sample of business leaders in Africa in order to identify the factors that contribute to the leader’s success in a global business operating in Africa. By applying qualitative research methodology which includes an individual narrative written by each Managing Director, semistructured interviews and focus groups, a framework for business leadership in Africa was developed.
- Full Text:
- Date Issued: 2014
A framework for high speed lexical classification of malicious URLs
- Authors: Egan, Shaun Peter
- Date: 2014
- Subjects: Internet -- Security measures -- Research , Uniform Resource Identifiers -- Security measures -- Research , Neural networks (Computer science) -- Research , Computer security -- Research , Computer crimes -- Prevention , Phishing
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4696 , http://hdl.handle.net/10962/d1011933 , Internet -- Security measures -- Research , Uniform Resource Identifiers -- Security measures -- Research , Neural networks (Computer science) -- Research , Computer security -- Research , Computer crimes -- Prevention , Phishing
- Description: Phishing attacks employ social engineering to target end-users, with the goal of stealing identifying or sensitive information. This information is used in activities such as identity theft or financial fraud. During a phishing campaign, attackers distribute URLs which; along with false information, point to fraudulent resources in an attempt to deceive users into requesting the resource. These URLs are made obscure through the use of several techniques which make automated detection difficult. Current methods used to detect malicious URLs face multiple problems which attackers use to their advantage. These problems include: the time required to react to new attacks; shifts in trends in URL obfuscation and usability problems caused by the latency incurred by the lookups required by these approaches. A new method of identifying malicious URLs using Artificial Neural Networks (ANNs) has been shown to be effective by several authors. The simple method of classification performed by ANNs result in very high classification speeds with little impact on usability. Samples used for the training, validation and testing of these ANNs are gathered from Phishtank and Open Directory. Words selected from the different sections of the samples are used to create a `Bag-of-Words (BOW)' which is used as a binary input vector indicating the presence of a word for a given sample. Twenty additional features which measure lexical attributes of the sample are used to increase classification accuracy. A framework that is capable of generating these classifiers in an automated fashion is implemented. These classifiers are automatically stored on a remote update distribution service which has been built to supply updates to classifier implementations. An example browser plugin is created and uses ANNs provided by this service. It is both capable of classifying URLs requested by a user in real time and is able to block these requests. The framework is tested in terms of training time and classification accuracy. Classification speed and the effectiveness of compression algorithms on the data required to distribute updates is tested. It is concluded that it is possible to generate these ANNs in a frequent fashion, and in a method that is small enough to distribute easily. It is also shown that classifications are made at high-speed with high-accuracy, resulting in little impact on usability.
- Full Text:
- Date Issued: 2014
- Authors: Egan, Shaun Peter
- Date: 2014
- Subjects: Internet -- Security measures -- Research , Uniform Resource Identifiers -- Security measures -- Research , Neural networks (Computer science) -- Research , Computer security -- Research , Computer crimes -- Prevention , Phishing
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4696 , http://hdl.handle.net/10962/d1011933 , Internet -- Security measures -- Research , Uniform Resource Identifiers -- Security measures -- Research , Neural networks (Computer science) -- Research , Computer security -- Research , Computer crimes -- Prevention , Phishing
- Description: Phishing attacks employ social engineering to target end-users, with the goal of stealing identifying or sensitive information. This information is used in activities such as identity theft or financial fraud. During a phishing campaign, attackers distribute URLs which; along with false information, point to fraudulent resources in an attempt to deceive users into requesting the resource. These URLs are made obscure through the use of several techniques which make automated detection difficult. Current methods used to detect malicious URLs face multiple problems which attackers use to their advantage. These problems include: the time required to react to new attacks; shifts in trends in URL obfuscation and usability problems caused by the latency incurred by the lookups required by these approaches. A new method of identifying malicious URLs using Artificial Neural Networks (ANNs) has been shown to be effective by several authors. The simple method of classification performed by ANNs result in very high classification speeds with little impact on usability. Samples used for the training, validation and testing of these ANNs are gathered from Phishtank and Open Directory. Words selected from the different sections of the samples are used to create a `Bag-of-Words (BOW)' which is used as a binary input vector indicating the presence of a word for a given sample. Twenty additional features which measure lexical attributes of the sample are used to increase classification accuracy. A framework that is capable of generating these classifiers in an automated fashion is implemented. These classifiers are automatically stored on a remote update distribution service which has been built to supply updates to classifier implementations. An example browser plugin is created and uses ANNs provided by this service. It is both capable of classifying URLs requested by a user in real time and is able to block these requests. The framework is tested in terms of training time and classification accuracy. Classification speed and the effectiveness of compression algorithms on the data required to distribute updates is tested. It is concluded that it is possible to generate these ANNs in a frequent fashion, and in a method that is small enough to distribute easily. It is also shown that classifications are made at high-speed with high-accuracy, resulting in little impact on usability.
- Full Text:
- Date Issued: 2014
A framework for implementation of ICT4D initiatives in the Eastern Cape province of South Africa
- Authors: Phingilili, Gcotyelwa
- Date: 2014
- Subjects: Information and Communication Technologies , ICT4D -- Development -- Rural community , Implementation -- ICT initiatives
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11146 , http://hdl.handle.net/10353/d1017789 , Information and Communication Technologies , ICT4D -- Development -- Rural community , Implementation -- ICT initiatives
- Description: South Africa’s rural communities have received Information and Communication Technologies services through initiatives such as tele-centres, living labs, Thusong service centres and donations of computer applications. There is need, with little plans in place to ensure that the rural communities will benefit from those initiatives. As a result of this, it is necessary to establish a framework for implementing Information and Communication Technologies for development initiatives in order to ensure successful implementation of these initiatives in rural communities. Literature shows that in order to successfully implement an ICT initiative for rural communities, there should be active engagement with ICT stakeholders, consultation of Information and Communication Technologies policies, presence of ICT infrastructure, ICT services, monitoring, evaluating, training and maintenance. Current literature on ICT developments shows that in order to successfully implement an ICT initiative for rural communities, there should be active engagement with ICT stakeholders, consultation of ICT policies, and presence of ICT infrastructure, ICT services, monitoring, evaluating, training and maintenance. Unstructured interviews were used as a research method to collect primary data that was used as a basis to develop the proposed framework. Findings from the studies carried out indicated that several ICT4D initiatives which were abandoned due to challenges such lack of proper resources, trainings, lack of local content, access, lack of ownership and lack of stakeholders’ involvement. This study presents a framework for implementing ICT for development initiatives in rural communities which has been developed in order to reduce the number of initiatives that are abandoned or which end up not serving their intended purpose in rural communities of South Africa.
- Full Text:
- Date Issued: 2014
- Authors: Phingilili, Gcotyelwa
- Date: 2014
- Subjects: Information and Communication Technologies , ICT4D -- Development -- Rural community , Implementation -- ICT initiatives
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11146 , http://hdl.handle.net/10353/d1017789 , Information and Communication Technologies , ICT4D -- Development -- Rural community , Implementation -- ICT initiatives
- Description: South Africa’s rural communities have received Information and Communication Technologies services through initiatives such as tele-centres, living labs, Thusong service centres and donations of computer applications. There is need, with little plans in place to ensure that the rural communities will benefit from those initiatives. As a result of this, it is necessary to establish a framework for implementing Information and Communication Technologies for development initiatives in order to ensure successful implementation of these initiatives in rural communities. Literature shows that in order to successfully implement an ICT initiative for rural communities, there should be active engagement with ICT stakeholders, consultation of Information and Communication Technologies policies, presence of ICT infrastructure, ICT services, monitoring, evaluating, training and maintenance. Current literature on ICT developments shows that in order to successfully implement an ICT initiative for rural communities, there should be active engagement with ICT stakeholders, consultation of ICT policies, and presence of ICT infrastructure, ICT services, monitoring, evaluating, training and maintenance. Unstructured interviews were used as a research method to collect primary data that was used as a basis to develop the proposed framework. Findings from the studies carried out indicated that several ICT4D initiatives which were abandoned due to challenges such lack of proper resources, trainings, lack of local content, access, lack of ownership and lack of stakeholders’ involvement. This study presents a framework for implementing ICT for development initiatives in rural communities which has been developed in order to reduce the number of initiatives that are abandoned or which end up not serving their intended purpose in rural communities of South Africa.
- Full Text:
- Date Issued: 2014
A framework for the management of environmental information in Higher Education Institutions
- Authors: Jonamu, Blessing Tapiwa
- Date: 2014
- Subjects: Sustainability , Universities and colleges , Environmental management
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10492 , http://hdl.handle.net/10948/d1020620
- Description: Higher Education Institutions (HEIs) are not immune to the global environment problems. An increasing awareness of the environmental responsibilities of HEIs has led researchers to investigate the role of environmental information and Environmental Management Information Systems (EMISs) in HEIs. EMISs play a major role in environmental management and environmental decision making in HEIs. Internationally, an increasing number of HEIs are embracing the concept of ‘sustainable HEIs’ by undertaking green campus initiatives. HEIs often use diverse information systems, some of which are manual systems, proven to be inefficient and this gives rise to redundant and inconsistent databases which result in non-compliance with regulations, confusion and lack of co-ordinated effort. There is therefore need for an integrated, comprehensive software system and framework which can assist with the efficient management of environmental information at South African HEIs. This study fills a gap in the field of environmental sustainability at HEIs as the evaluation of existing sustainability programs has shown common weakness such as: Failure to effectively set baselines, flaws in data acquisition and management and missing documentation. The aim of this study is to propose a framework for Environmental Information Management (EIM) in HEIs. The framework includes guidelines related to the components of the framework which can also be used to perform a gap analysis to facilitate the improved design of effective and efficient EIM processes and data stores. The Design Science Research (DSR) methodology is the research methodology used in the development of the two artifacts of this study namely: The EIM framework for HEIs and an EMIS prototype to serve as proof of concept. Problem identification and motivation was the first activity of the DSR which was done through a rigorous literature review and an investigation and evaluation of extant systems. This resulted in the design of an initial EIM framework for HEIs. Nelson Mandela Metropolitan University (NMMU) was the HEI used as the case study. The EIM framework was applied at NMMU and this enabled the researcher to understand the current As-Is EIM processes at NMMU and this resulted in clear objectives of a solution. The EMIS prototype (data warehouse) was then designed and implemented based on the theoretical framework. Three sets of evaluations were done to determine the acceptance of the EIM framework for HEIs and the performance of the EMIS prototype. The EIM framework was generally positively accepted and minor suggestions were made. An updated version of the EIM framework was proposed and evaluated. The experimental evaluation results showed that the EMIS prototype was efficient and effective. The contribution of this study is an EIM framework for HEIs and an implementation of an EMIS (EnviroDW) at NMMU that could be utilised by other HEIs.
- Full Text:
- Date Issued: 2014
- Authors: Jonamu, Blessing Tapiwa
- Date: 2014
- Subjects: Sustainability , Universities and colleges , Environmental management
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10492 , http://hdl.handle.net/10948/d1020620
- Description: Higher Education Institutions (HEIs) are not immune to the global environment problems. An increasing awareness of the environmental responsibilities of HEIs has led researchers to investigate the role of environmental information and Environmental Management Information Systems (EMISs) in HEIs. EMISs play a major role in environmental management and environmental decision making in HEIs. Internationally, an increasing number of HEIs are embracing the concept of ‘sustainable HEIs’ by undertaking green campus initiatives. HEIs often use diverse information systems, some of which are manual systems, proven to be inefficient and this gives rise to redundant and inconsistent databases which result in non-compliance with regulations, confusion and lack of co-ordinated effort. There is therefore need for an integrated, comprehensive software system and framework which can assist with the efficient management of environmental information at South African HEIs. This study fills a gap in the field of environmental sustainability at HEIs as the evaluation of existing sustainability programs has shown common weakness such as: Failure to effectively set baselines, flaws in data acquisition and management and missing documentation. The aim of this study is to propose a framework for Environmental Information Management (EIM) in HEIs. The framework includes guidelines related to the components of the framework which can also be used to perform a gap analysis to facilitate the improved design of effective and efficient EIM processes and data stores. The Design Science Research (DSR) methodology is the research methodology used in the development of the two artifacts of this study namely: The EIM framework for HEIs and an EMIS prototype to serve as proof of concept. Problem identification and motivation was the first activity of the DSR which was done through a rigorous literature review and an investigation and evaluation of extant systems. This resulted in the design of an initial EIM framework for HEIs. Nelson Mandela Metropolitan University (NMMU) was the HEI used as the case study. The EIM framework was applied at NMMU and this enabled the researcher to understand the current As-Is EIM processes at NMMU and this resulted in clear objectives of a solution. The EMIS prototype (data warehouse) was then designed and implemented based on the theoretical framework. Three sets of evaluations were done to determine the acceptance of the EIM framework for HEIs and the performance of the EMIS prototype. The EIM framework was generally positively accepted and minor suggestions were made. An updated version of the EIM framework was proposed and evaluated. The experimental evaluation results showed that the EMIS prototype was efficient and effective. The contribution of this study is an EIM framework for HEIs and an implementation of an EMIS (EnviroDW) at NMMU that could be utilised by other HEIs.
- Full Text:
- Date Issued: 2014
A framework to elicit user requirements for information systems: a localised participatory approach from Southern Africa
- Authors: Tyukala, Mkhululi
- Date: 2014
- Subjects: Information technology -- Africa, Southern , User-centered system design -- Africa, Southern , Management information systems -- Africa, Southern
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/4546 , vital:20615
- Description: The “What” and “Why” in information system development in resource restricted environments is already well covered in literature. However, the “How” to do it still has not been explored. This thesis reports on the development of a locally flavoured participatory user requirements elicitation framework for the development of information systems in resource restricted environments. It uses existing participatory design practices, user requirements elicitation literature and local participatory norms and traditions to achieve this. In doing so, it takes a step towards the way information systems could be developed in resource restricted environments. The topic of this thesis is mainly motivated by the recent calls in existing literature for developing countries to start developing their own information systems in order to address their own requirements. Accordingly, and to lay a foundation towards the realisation of this goal, this research is positioned within the user requirements elicitation region of information systems development. Current user requirements elicitation methods use traditional methods where experts/designers ask system users questions through interviews or learn about their environment through observations. This research proposes a shift from this approach to one that not only views users as equal partners in the elicitation process but in the whole information systems development process. This is in the spirit of participatory design, which was developed in Scandinavia more than four decades ago. Further, recent research in participatory design emphasises the importance of its contextual nature and concedes that there is no single best practice for participatory design in information systems that applies to all contexts. This research explores the information systems development discourse in resource restricted environments in Africa. Its purpose is to enhance understanding of the local contexts, thus providing new insights on how to develop a framework that speaks to local challenges using norms and traditions in order to develop information systems that address local requirements. Thus, the main contribution of this research lies in laying a foundation for a locally flavoured participatory approach for information systems development in resource restricted environments. It contributes to the existing information systems development, participatory design and user requirements elicitation body of knowledge by developing a framework for participatory user requirements elicitation. In addition, it contributes to the participatory design body of knowledge by introducing an age-old African participatory decisionmaking approach to the academic participatory design community. In doing so, it adopts the meaning of participation from an African value system point of view, which is something that has only been previously explored in the Nordic countries and North America. Finally, recommendations for the application, limitations and avenues for further research are incorporated into the findings of this research.
- Full Text:
- Date Issued: 2014
- Authors: Tyukala, Mkhululi
- Date: 2014
- Subjects: Information technology -- Africa, Southern , User-centered system design -- Africa, Southern , Management information systems -- Africa, Southern
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/4546 , vital:20615
- Description: The “What” and “Why” in information system development in resource restricted environments is already well covered in literature. However, the “How” to do it still has not been explored. This thesis reports on the development of a locally flavoured participatory user requirements elicitation framework for the development of information systems in resource restricted environments. It uses existing participatory design practices, user requirements elicitation literature and local participatory norms and traditions to achieve this. In doing so, it takes a step towards the way information systems could be developed in resource restricted environments. The topic of this thesis is mainly motivated by the recent calls in existing literature for developing countries to start developing their own information systems in order to address their own requirements. Accordingly, and to lay a foundation towards the realisation of this goal, this research is positioned within the user requirements elicitation region of information systems development. Current user requirements elicitation methods use traditional methods where experts/designers ask system users questions through interviews or learn about their environment through observations. This research proposes a shift from this approach to one that not only views users as equal partners in the elicitation process but in the whole information systems development process. This is in the spirit of participatory design, which was developed in Scandinavia more than four decades ago. Further, recent research in participatory design emphasises the importance of its contextual nature and concedes that there is no single best practice for participatory design in information systems that applies to all contexts. This research explores the information systems development discourse in resource restricted environments in Africa. Its purpose is to enhance understanding of the local contexts, thus providing new insights on how to develop a framework that speaks to local challenges using norms and traditions in order to develop information systems that address local requirements. Thus, the main contribution of this research lies in laying a foundation for a locally flavoured participatory approach for information systems development in resource restricted environments. It contributes to the existing information systems development, participatory design and user requirements elicitation body of knowledge by developing a framework for participatory user requirements elicitation. In addition, it contributes to the participatory design body of knowledge by introducing an age-old African participatory decisionmaking approach to the academic participatory design community. In doing so, it adopts the meaning of participation from an African value system point of view, which is something that has only been previously explored in the Nordic countries and North America. Finally, recommendations for the application, limitations and avenues for further research are incorporated into the findings of this research.
- Full Text:
- Date Issued: 2014
A geological, petrological and mineralogical study of the UG3 chromitite seam at Modikwa Platinum Mine : significance to exploration and PGE resources
- Authors: Machumele, Nkateko Jones
- Date: 2014
- Subjects: Modikwa Platinum Mine (South Africa) , Chromite -- South Africa -- Limpopo , Geology -- South Africa -- Limpopo , Petrology -- South Africa -- Limpopo , Mineralogy -- South Africa -- Limpopo , Platinum mines and mining -- South Africa -- Limpopo
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5074 , http://hdl.handle.net/10962/d1013553
- Description: The UG3 at Modikwa Platinum Mine occurs as a platiniferous, planar chromitite seam. It is stratigraphically located in the Upper Critical Zone of the Eastern Bushveld Complex. Field work study comprise of underground mapping, sampling, surface mapping, borehole core logging, microprobing and microscopic investigations carried out at the Rhodes University. The UG3 at the Modikwa Platinum Mine is about 22cm thick chromitite seam underlain by a white fine grained anorthosite and overlain by a brown medium grained feldspathic pyroxenite. It is an incomplete cyclic unit consisting of chromite and feldspathic pyroxenite. The UG3 reef at the Modikwa Platinum Mine lease area represents a Platinum Group Metal resource of 300 million tons of ore at an in situ grade of 2.5g/t. Under the current market conditions the UG3 reef remains unprofitable to mine in an underground operation due to the operational cost involved. However, it has been illustrated that the UG3 chromitite seam can increase profit margins in an open pit operation provided it is mined together with the economic UG2 chromitite seam. The extraction of the UG3 as ore in the four Modikwa UG2 open pits would result in a combined operating cash profit of R330 million. The UG3 chromitite seam is platiniferous. The platinum-group minerals (PGM) range in size from less than 10μm to about 70μm. The PGMs are associated with sulphides and are both located in the interstitial silicates and are concentrated in the chromitite seam. The PGMs show a strong preference to contact boundaries of the silicate grains, the chromite grains and the sulphide phases. In some instances, they are enclosed within the chromite grains in association with sulphides. The general sulphide assemblage comprises pentlandite and chalcopyrite whereas, the PGMs assemblage comprises cooperite, ferroplatinum, laurite, FeRhS and PtRhS.
- Full Text:
- Date Issued: 2014
- Authors: Machumele, Nkateko Jones
- Date: 2014
- Subjects: Modikwa Platinum Mine (South Africa) , Chromite -- South Africa -- Limpopo , Geology -- South Africa -- Limpopo , Petrology -- South Africa -- Limpopo , Mineralogy -- South Africa -- Limpopo , Platinum mines and mining -- South Africa -- Limpopo
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5074 , http://hdl.handle.net/10962/d1013553
- Description: The UG3 at Modikwa Platinum Mine occurs as a platiniferous, planar chromitite seam. It is stratigraphically located in the Upper Critical Zone of the Eastern Bushveld Complex. Field work study comprise of underground mapping, sampling, surface mapping, borehole core logging, microprobing and microscopic investigations carried out at the Rhodes University. The UG3 at the Modikwa Platinum Mine is about 22cm thick chromitite seam underlain by a white fine grained anorthosite and overlain by a brown medium grained feldspathic pyroxenite. It is an incomplete cyclic unit consisting of chromite and feldspathic pyroxenite. The UG3 reef at the Modikwa Platinum Mine lease area represents a Platinum Group Metal resource of 300 million tons of ore at an in situ grade of 2.5g/t. Under the current market conditions the UG3 reef remains unprofitable to mine in an underground operation due to the operational cost involved. However, it has been illustrated that the UG3 chromitite seam can increase profit margins in an open pit operation provided it is mined together with the economic UG2 chromitite seam. The extraction of the UG3 as ore in the four Modikwa UG2 open pits would result in a combined operating cash profit of R330 million. The UG3 chromitite seam is platiniferous. The platinum-group minerals (PGM) range in size from less than 10μm to about 70μm. The PGMs are associated with sulphides and are both located in the interstitial silicates and are concentrated in the chromitite seam. The PGMs show a strong preference to contact boundaries of the silicate grains, the chromite grains and the sulphide phases. In some instances, they are enclosed within the chromite grains in association with sulphides. The general sulphide assemblage comprises pentlandite and chalcopyrite whereas, the PGMs assemblage comprises cooperite, ferroplatinum, laurite, FeRhS and PtRhS.
- Full Text:
- Date Issued: 2014