The investigation of chemical variation in the stems and rhizomes of cissampelos capensis l. f. (menispermaceae) the Eastern Cape medicinal plant
- Authors: Latolla, Nehemiah Solomon
- Date: 2017
- Subjects: Plants -- Composition Medicinal plants Endemic plants
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/13970 , vital:27362
- Description: Cissampelos capensis L. f. (Menispermaceae) commonly known as “Mayisake” (Xhosa) and “Dawidjieswortel” (Afrikaans) is the most commonly used medicinal plant of the Menispermaceae family in South Africa. The rhizomes of Cissampelos capensis are the most used part of the plant to treat illnesses. This poses a threat to the ongoing conservation of this valuable endemic species. Thus, we studied the chemical variation and subsequently the bioactivity in the stems and rhizomes of Cissampelos capensis, the Eastern Cape medicinal plant, to suggest the possible use of the stems for medicinal purposes. We studied the variation in the chemical composition in the stems and the rhizomes by employing four different extraction methods; the methanolic-, non-polar-, alkaloidal- and Total Tertiary Alkaloidal (TTA) to extract compounds from Cissampelos capensis. Employing various chromatographic techniques, HPLC, NMR and LC/MS to investigate the chemical variation and the in vitro assays for the crude materials of the stems and rhizomes of Cissampelos capensis. We successfully documented a library of the phytochemicals content in Cissampelos capensis from three different regions in the Eastern Cape. We could profile different extraction methods, with the TTA extraction delivering the best comparative profile. Employing LC/MS and HPLC we identified eleven known alkaloidal compounds in the stems and rhizomes. We also isolated a known alkaloid, pronuciferine, from the TTA extract and a crystal structure of proto-quericitol from the methanolic extract, which was isolated for the first time from Cissampelos capensis. Preliminary in vitro results suggested anti-inflammatory activity in the methanolic extracts of the stems and rhizomes, while the TTA extracts showed some cytotoxicity. Finally, through analytical HPLC analysis this study found as high as 31% similarity between the chemical variation of the stems and rhizomes, but key alkaloids were not always present, indicating more work is needed before the stems can be recommended as a replacement for the rhizomes.
- Full Text:
- Date Issued: 2017
- Authors: Latolla, Nehemiah Solomon
- Date: 2017
- Subjects: Plants -- Composition Medicinal plants Endemic plants
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/13970 , vital:27362
- Description: Cissampelos capensis L. f. (Menispermaceae) commonly known as “Mayisake” (Xhosa) and “Dawidjieswortel” (Afrikaans) is the most commonly used medicinal plant of the Menispermaceae family in South Africa. The rhizomes of Cissampelos capensis are the most used part of the plant to treat illnesses. This poses a threat to the ongoing conservation of this valuable endemic species. Thus, we studied the chemical variation and subsequently the bioactivity in the stems and rhizomes of Cissampelos capensis, the Eastern Cape medicinal plant, to suggest the possible use of the stems for medicinal purposes. We studied the variation in the chemical composition in the stems and the rhizomes by employing four different extraction methods; the methanolic-, non-polar-, alkaloidal- and Total Tertiary Alkaloidal (TTA) to extract compounds from Cissampelos capensis. Employing various chromatographic techniques, HPLC, NMR and LC/MS to investigate the chemical variation and the in vitro assays for the crude materials of the stems and rhizomes of Cissampelos capensis. We successfully documented a library of the phytochemicals content in Cissampelos capensis from three different regions in the Eastern Cape. We could profile different extraction methods, with the TTA extraction delivering the best comparative profile. Employing LC/MS and HPLC we identified eleven known alkaloidal compounds in the stems and rhizomes. We also isolated a known alkaloid, pronuciferine, from the TTA extract and a crystal structure of proto-quericitol from the methanolic extract, which was isolated for the first time from Cissampelos capensis. Preliminary in vitro results suggested anti-inflammatory activity in the methanolic extracts of the stems and rhizomes, while the TTA extracts showed some cytotoxicity. Finally, through analytical HPLC analysis this study found as high as 31% similarity between the chemical variation of the stems and rhizomes, but key alkaloids were not always present, indicating more work is needed before the stems can be recommended as a replacement for the rhizomes.
- Full Text:
- Date Issued: 2017
The profitability of commercial state-owned entities
- Authors: Giliana, Tefo Godfrey
- Date: 2017
- Subjects: Government business enterprises -- South Africa Government corporations -- South Africa , Government ownership -- South Africa Profit -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/15633 , vital:28278
- Description: The importance of State-owned entities (SOEs) in a developing State has been argued for centuries. SOEs are perceived as the tool that the State can successfully use to implement its developmental agenda. In the Republic of South Africa, SOEs have been used to ensure universal access to electricity, water and logistical infrastructure to support industrial development, as well as basic service delivery. These entities have been expected to fund these initiatives from their own funds, which alleviated the need for commercial SOEs (also known as State-owned companies) to be profitable without continuous financial injections from the RSA government. Generally, commercial SOEs have been performing poorly financially. This research study aims to determine whether political influence might affect the profitability of these commercial SOEs. The poor financial performance plaguing the commercial SOEs hinders their ability to effectively contribute as a collective to the developmental agenda of the State, as espoused in the current strategic plan of the RSA in the form of the National Development Plan (NDP). Due to the poor financial performance and subsequent diversion of financial resources from other national priorities for their bail-out, commercial SOEs have been considered a liability rather than an asset to the RSA. To satisfy the primary and associated research objectives, qualitative primary and secondary research data have been collected. The primary data have been collected by using the semi-structured interview from the CFOs of commercial SOEs from various government departments – given their proximity to the financial performance and the drivers of this performance in commercial SOEs. CFOs are also part of the commercial SOEs senior-executive management of these entities. The general opinion of the participants and the literature review of the research study is that, indeed, political influence has had an adverse effect on the profitability of commercial SOEs, among others, as a consequence of the positioning of SOEs within the governance system of the RSA, the impact of the recruitment process for senior executives and the implications of an unfunded mandate. It is clear that in the RSA, commercial SOEs, and SOEs in general, will continue to play a pivotal role in the implementation of the developmental agendas of the State, as expressed in the NDP. With the RSA government expecting commercial SOEs to fund these activities from their own funds, it is critical that the State should be an enabler rather than a hindrance for commercial SOEs‟ profitability.
- Full Text:
- Date Issued: 2017
- Authors: Giliana, Tefo Godfrey
- Date: 2017
- Subjects: Government business enterprises -- South Africa Government corporations -- South Africa , Government ownership -- South Africa Profit -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/15633 , vital:28278
- Description: The importance of State-owned entities (SOEs) in a developing State has been argued for centuries. SOEs are perceived as the tool that the State can successfully use to implement its developmental agenda. In the Republic of South Africa, SOEs have been used to ensure universal access to electricity, water and logistical infrastructure to support industrial development, as well as basic service delivery. These entities have been expected to fund these initiatives from their own funds, which alleviated the need for commercial SOEs (also known as State-owned companies) to be profitable without continuous financial injections from the RSA government. Generally, commercial SOEs have been performing poorly financially. This research study aims to determine whether political influence might affect the profitability of these commercial SOEs. The poor financial performance plaguing the commercial SOEs hinders their ability to effectively contribute as a collective to the developmental agenda of the State, as espoused in the current strategic plan of the RSA in the form of the National Development Plan (NDP). Due to the poor financial performance and subsequent diversion of financial resources from other national priorities for their bail-out, commercial SOEs have been considered a liability rather than an asset to the RSA. To satisfy the primary and associated research objectives, qualitative primary and secondary research data have been collected. The primary data have been collected by using the semi-structured interview from the CFOs of commercial SOEs from various government departments – given their proximity to the financial performance and the drivers of this performance in commercial SOEs. CFOs are also part of the commercial SOEs senior-executive management of these entities. The general opinion of the participants and the literature review of the research study is that, indeed, political influence has had an adverse effect on the profitability of commercial SOEs, among others, as a consequence of the positioning of SOEs within the governance system of the RSA, the impact of the recruitment process for senior executives and the implications of an unfunded mandate. It is clear that in the RSA, commercial SOEs, and SOEs in general, will continue to play a pivotal role in the implementation of the developmental agendas of the State, as expressed in the NDP. With the RSA government expecting commercial SOEs to fund these activities from their own funds, it is critical that the State should be an enabler rather than a hindrance for commercial SOEs‟ profitability.
- Full Text:
- Date Issued: 2017
The relationship between authentic leadership and employee engagement
- Authors: Dube, Yonela Oko Likona
- Date: 2017
- Subjects: Leadership Employee motivation , Employees -- Attitudes Management
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/15160 , vital:28170
- Description: Authenticity is a leadership characteristic of exceptional leaders. It is an essential requirement for future leaders, especially in an era when the motives and behaviours of many leaders are questionable. Authentic leaders are genuine and utter words that can be trusted (Smith, 2014.). Followers have voiced a need for leaders who can be trusted and show consistency in their actions. The study focused on the investigation of authentic leadership and the influence that authentic leadership has on the engagement levels of employees. A theoretical study of leadership, with the focus on authentic leadership and employee engagement was conducted to achieve the objectives of the study. The research included a literature study, which highlighted the characteristics and behaviours of authentic leadership. Both a theoretical and practitioner view of authentic leadership is included in the theoretical study. Semi-structured interviews were held with two prominent leadership practitioners, one from the University of the Free State and the other from the University of Stellenbosch, to obtain their views on the nature of authentic leadership and examples of South African leaders who they considered authentic leaders. The insights gained from the literature review and the interviews, were incorporated into a survey questionnaire developed for use in the empirical study which was conducted at Continental Tyre SA. An electronic questionnaire was administered to managers and their direct subordinates in the manufacturing and marketing/sales divisions. The questionnaire probed the respondents’ perceptions regarding the level of authenticity displayed by leaders in the organisation, and specifically the extent to which leaders demonstrated the characteristics and behaviours associated with authentic leadership. The Authentic Leadership Questionnaire (ALQ), as validated by Walumbwa, Avolio, Gardner, Wernsing and Peterson (2008, p. 64), was used as a basis for the development of the survey questionnaire, with adjustments made to include the practitioner’s perspective as postulated by George (2003, p. 12). The section in the questionnaire on engagement focused on engagement as a psychological state, behavioural engagement and the manager’s role in nurturing engagement. Both managers and employees were requested to provide their view of the manager’s characteristics and behaviours, the managers rated themselves, and both groups rated the engagement levels of employees. A correlation was made between the responses received from the manager and employees. The results of the empirical study revealed that both managers and employees agreed mostly that managers in the organisation displayed the characteristics and behaviours of authentic leadership and employees were engaged. It did however, emerge that the managers were reluctant to share personal information about themselves and that employees believed that managers did not seek feedback on their own behaviour. In terms of employee engagement, the results suggested that the managers believed that employees felt supported, accepted and were committed to the Continental Tyre SA brand; but indicated a lack of knowledge of their roles in the organisation and a lack of passion and energy. Further findings revealed that the managers in the marketing/sales division considered their employees more engaged than the managers in the manufacturing division considered their employees to be. Other findings also revealed that self-awareness in leaders is an important predictor of employee engagement. Self-awareness in a leader is an important feature in facilitating social processes in the leader’s relationship with their followers. Transparent leaders create a psychologically secure environment, enabling employees to be confident and to feel encouraged to express themselves freely. The study concluded with several recommendations. Leaders should be more transparent in their interaction with others by sharing personal stories about themselves. Opportunities should be provided through 360° feedback for employees to give feedback to managers regarding their behaviour. The GIVE (Goals, Interests, Values and Emotions) Model should be used in management development initiatives to facilitate the development of self-awareness and self-knowledge. An appreciative inquiry, which focuses on positive affirmation, should be an approach used in organisations to foster the development of genuine relationships and is an implication of authentic leadership, thus encouraging employee engagement.
- Full Text:
- Date Issued: 2017
- Authors: Dube, Yonela Oko Likona
- Date: 2017
- Subjects: Leadership Employee motivation , Employees -- Attitudes Management
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/15160 , vital:28170
- Description: Authenticity is a leadership characteristic of exceptional leaders. It is an essential requirement for future leaders, especially in an era when the motives and behaviours of many leaders are questionable. Authentic leaders are genuine and utter words that can be trusted (Smith, 2014.). Followers have voiced a need for leaders who can be trusted and show consistency in their actions. The study focused on the investigation of authentic leadership and the influence that authentic leadership has on the engagement levels of employees. A theoretical study of leadership, with the focus on authentic leadership and employee engagement was conducted to achieve the objectives of the study. The research included a literature study, which highlighted the characteristics and behaviours of authentic leadership. Both a theoretical and practitioner view of authentic leadership is included in the theoretical study. Semi-structured interviews were held with two prominent leadership practitioners, one from the University of the Free State and the other from the University of Stellenbosch, to obtain their views on the nature of authentic leadership and examples of South African leaders who they considered authentic leaders. The insights gained from the literature review and the interviews, were incorporated into a survey questionnaire developed for use in the empirical study which was conducted at Continental Tyre SA. An electronic questionnaire was administered to managers and their direct subordinates in the manufacturing and marketing/sales divisions. The questionnaire probed the respondents’ perceptions regarding the level of authenticity displayed by leaders in the organisation, and specifically the extent to which leaders demonstrated the characteristics and behaviours associated with authentic leadership. The Authentic Leadership Questionnaire (ALQ), as validated by Walumbwa, Avolio, Gardner, Wernsing and Peterson (2008, p. 64), was used as a basis for the development of the survey questionnaire, with adjustments made to include the practitioner’s perspective as postulated by George (2003, p. 12). The section in the questionnaire on engagement focused on engagement as a psychological state, behavioural engagement and the manager’s role in nurturing engagement. Both managers and employees were requested to provide their view of the manager’s characteristics and behaviours, the managers rated themselves, and both groups rated the engagement levels of employees. A correlation was made between the responses received from the manager and employees. The results of the empirical study revealed that both managers and employees agreed mostly that managers in the organisation displayed the characteristics and behaviours of authentic leadership and employees were engaged. It did however, emerge that the managers were reluctant to share personal information about themselves and that employees believed that managers did not seek feedback on their own behaviour. In terms of employee engagement, the results suggested that the managers believed that employees felt supported, accepted and were committed to the Continental Tyre SA brand; but indicated a lack of knowledge of their roles in the organisation and a lack of passion and energy. Further findings revealed that the managers in the marketing/sales division considered their employees more engaged than the managers in the manufacturing division considered their employees to be. Other findings also revealed that self-awareness in leaders is an important predictor of employee engagement. Self-awareness in a leader is an important feature in facilitating social processes in the leader’s relationship with their followers. Transparent leaders create a psychologically secure environment, enabling employees to be confident and to feel encouraged to express themselves freely. The study concluded with several recommendations. Leaders should be more transparent in their interaction with others by sharing personal stories about themselves. Opportunities should be provided through 360° feedback for employees to give feedback to managers regarding their behaviour. The GIVE (Goals, Interests, Values and Emotions) Model should be used in management development initiatives to facilitate the development of self-awareness and self-knowledge. An appreciative inquiry, which focuses on positive affirmation, should be an approach used in organisations to foster the development of genuine relationships and is an implication of authentic leadership, thus encouraging employee engagement.
- Full Text:
- Date Issued: 2017
The relationship between opportunity-related aspects and the performance of primary co-operatives in South Africa
- Authors: Bodley, David Cyril
- Date: 2017
- Subjects: Organizational effectiveness -- Measurement Performance , Small business -- Management Success in business
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/14653 , vital:27813
- Description: South Africa is a country facing divisive social and economic challenges. It has a history that generated imbalances within the economy and requires urgent solutions to one of the most significant issues the country faces, having too few South Africans in work. Globally, a key solution to creating work has been to make small business the engine-room of economies. Consequently, the South African Government has identified the establishment of small businesses as a priority, which incorporates the development of collaborative forms of businesses in marginalised communities. The co-operative form of business and a strong co-operative movement is, therefore, a critical element of government’s initiative to create work and economic independence for South Africans. Governed by the seven International Labour Organization (ILO) principles, this form of business is often more complex than a typical firm, making the task of establishing and growing these entities particularly challenging. This study analyses the literature to gain an understanding of co-operative movements across the globe. It then looks at the specific challenges the movement faces in South Africa, followed by an analysis of best practice that a business should engage in its establishment and growth. Specifically, the literature examines whether there is a relationship between opportunity-related industry, market and entrepreneurial team aspects and improved business performance of business entities such as co-operatives. The study collates data from co-operatives in the South African economy using two separate methodologies. Firstly, a structured interview was used to acquire information on the opportunity-related aspects. Secondly, business transactions were recorded and basic financial statements were produced for each co-operative, enabling a rating on business performance. The primary data was then analysed within Chapter 6, to investigate the strength of the relationship between opportunity-related aspects and business performance. The findings extracted from the primary data reinforced certain facts within the body of knowledge as it relates to the relationship between opportunity-related aspects and business performance, but there were also some interesting new insights that were extracted from the data. The South African co-operative movement has achieved certain success and momentum as well as experiencing certain failures, and the study clearly highlights both, and makes recommendations to improve the movements and government’s efforts to establish a vibrant and meaningful co-operative sector.
- Full Text:
- Date Issued: 2017
- Authors: Bodley, David Cyril
- Date: 2017
- Subjects: Organizational effectiveness -- Measurement Performance , Small business -- Management Success in business
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/14653 , vital:27813
- Description: South Africa is a country facing divisive social and economic challenges. It has a history that generated imbalances within the economy and requires urgent solutions to one of the most significant issues the country faces, having too few South Africans in work. Globally, a key solution to creating work has been to make small business the engine-room of economies. Consequently, the South African Government has identified the establishment of small businesses as a priority, which incorporates the development of collaborative forms of businesses in marginalised communities. The co-operative form of business and a strong co-operative movement is, therefore, a critical element of government’s initiative to create work and economic independence for South Africans. Governed by the seven International Labour Organization (ILO) principles, this form of business is often more complex than a typical firm, making the task of establishing and growing these entities particularly challenging. This study analyses the literature to gain an understanding of co-operative movements across the globe. It then looks at the specific challenges the movement faces in South Africa, followed by an analysis of best practice that a business should engage in its establishment and growth. Specifically, the literature examines whether there is a relationship between opportunity-related industry, market and entrepreneurial team aspects and improved business performance of business entities such as co-operatives. The study collates data from co-operatives in the South African economy using two separate methodologies. Firstly, a structured interview was used to acquire information on the opportunity-related aspects. Secondly, business transactions were recorded and basic financial statements were produced for each co-operative, enabling a rating on business performance. The primary data was then analysed within Chapter 6, to investigate the strength of the relationship between opportunity-related aspects and business performance. The findings extracted from the primary data reinforced certain facts within the body of knowledge as it relates to the relationship between opportunity-related aspects and business performance, but there were also some interesting new insights that were extracted from the data. The South African co-operative movement has achieved certain success and momentum as well as experiencing certain failures, and the study clearly highlights both, and makes recommendations to improve the movements and government’s efforts to establish a vibrant and meaningful co-operative sector.
- Full Text:
- Date Issued: 2017
The risk of borrowed capital for commercial, industrial and residential property developments
- Authors: Loock, Morne
- Date: 2017
- Subjects: Commercial buildings -- Finance Industrial sites -- Finance , Real estate developers -- South Africa Financial institutions -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/18288 , vital:28615
- Description: Most property development firms who invest in property will need to raise some extra financial support. Unforeseen or unexpected expenses can arise at any point in time during the development process. Calculated decisions should be taken with regards to the financial circumstances for any property development project. Decisions should be taken not only for the present but for the future as well. It is therefore important to understand the market and the current economic conditions before applying for capital to fund a property development project. There several types of finance available to fund property development, these include long term borrowing, short term borrowing, construction loans property development investment trust, second mortgages. There is risk to all of the aforementioned finance available.
- Full Text:
- Date Issued: 2017
- Authors: Loock, Morne
- Date: 2017
- Subjects: Commercial buildings -- Finance Industrial sites -- Finance , Real estate developers -- South Africa Financial institutions -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/18288 , vital:28615
- Description: Most property development firms who invest in property will need to raise some extra financial support. Unforeseen or unexpected expenses can arise at any point in time during the development process. Calculated decisions should be taken with regards to the financial circumstances for any property development project. Decisions should be taken not only for the present but for the future as well. It is therefore important to understand the market and the current economic conditions before applying for capital to fund a property development project. There several types of finance available to fund property development, these include long term borrowing, short term borrowing, construction loans property development investment trust, second mortgages. There is risk to all of the aforementioned finance available.
- Full Text:
- Date Issued: 2017
Towards a framework for the integration of information security into undergraduate computing curricula
- Gomana, Lindokuhle Gcina, Thomson, Kerry-Lynn
- Authors: Gomana, Lindokuhle Gcina , Thomson, Kerry-Lynn
- Date: 2017
- Subjects: Information technology -- Study and teaching , Computer security -- Study and teaching Educational technology Computer networks -- Security measures
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/13691 , vital:27296
- Description: Information is an important and valuable asset, in both our everyday lives and in various organisations. Information is subject to numerous threats, these can originate internally or externally to the organisation and could be accidental, intentional or caused by natural disasters. As an important organisational asset, information should be appropriately protected from threats and threat agents regardless of their origin. Organisational employees are, however, often cited as the “weakest link” in the attempt to protect organisational information systems and related information assets. Additionally to this, employees are one of the biggest and closest threat-agents to an organisation’s information systems and its security. Upon graduating, computing (Computer Science, Information Systems and Information Technology) graduates typically become organisational employees. Within organisations, computing graduates often take on roles and responsibilities that involve designing, developing, implementing, upgrading and maintaining the information systems that store, process and transmit organisational information assets. It is, therefore, important that these computing graduates possess the necessary information security skills, knowledge and understanding that could enable them to perform their roles and responsibilities in a secure manner. These information security skills, knowledge and understanding can be acquired through information security education obtained through a qualification that is offered at a higher education institution. At many higher education institutions where information security is taught, it is taught as a single, isolated module at the fourth year level of study. The problem with this is that some computing students do not advance to this level and many of those that do, do not elect information security as a module. This means that these students may graduate and be employed by organisations lacking the necessary information security skills, knowledge and understanding to perform their roles and responsibilities securely. Consequently, this could increase the number of employees who are the “weakest link” in securing organisational information systems and related information assets. The ACM, as a key role player that provides educational guidelines for the development of computing curricula, recommends that information security should be pervasively integrated into computing curricula. However, these guidelines and recommendations do not provide sufficient guidance on “how” computing educators can pervasively integrate information security into their modules. Therefore, the problem identified by this research is that “currently, no generally used framework exists to aid the pervasive integration of information security into undergraduate computing curricula”. The primary research objective of this study, therefore, is to develop a framework to aid the pervasive integration of information security into undergraduate computing curricula. In order to meet this objective, secondary objectives were met, namely: To develop an understanding of the importance of information security; to determine the importance of information security education as it relates to undergraduate computing curricula; and to determine computing educators’ perspectives on information security education in a South African context. Various research methods were used to achieve this study’s research objectives. These research methods included a literature review which was used to define and provide an in-depth discussion relating to the domain in which this study is contained, namely: information security and information security education. Furthermore, a survey which took the form of semi-structured interviews supported by a questionnaire, was used to elicit computing educators’ perspectives on information security education in a South African context. Argumentation was used to argue towards the proposed framework to aid the pervasive integration of information security into undergraduate computing curricula. In addition, modelling techniques were used to model the proposed framework and scenarios were used to demonstrate how a computing department could implement the proposed framework. Finally, elite interviews supported by a questionnaire were conducted to validate the proposed framework. It is envisaged that the proposed framework could assist computing departments and undergraduate computing educators in the integration of information security into their curricula. Furthermore, the pervasive integration of information security into undergraduate computing curricula could ensure that computing graduates exit higher education institutions possessing the necessary information security skills, knowledge and understanding to enable them to perform their roles and responsibilities securely. It is hoped that this could enable computing graduates to become a stronger link in securing organisational information systems and related assets.
- Full Text:
- Date Issued: 2017
- Authors: Gomana, Lindokuhle Gcina , Thomson, Kerry-Lynn
- Date: 2017
- Subjects: Information technology -- Study and teaching , Computer security -- Study and teaching Educational technology Computer networks -- Security measures
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/13691 , vital:27296
- Description: Information is an important and valuable asset, in both our everyday lives and in various organisations. Information is subject to numerous threats, these can originate internally or externally to the organisation and could be accidental, intentional or caused by natural disasters. As an important organisational asset, information should be appropriately protected from threats and threat agents regardless of their origin. Organisational employees are, however, often cited as the “weakest link” in the attempt to protect organisational information systems and related information assets. Additionally to this, employees are one of the biggest and closest threat-agents to an organisation’s information systems and its security. Upon graduating, computing (Computer Science, Information Systems and Information Technology) graduates typically become organisational employees. Within organisations, computing graduates often take on roles and responsibilities that involve designing, developing, implementing, upgrading and maintaining the information systems that store, process and transmit organisational information assets. It is, therefore, important that these computing graduates possess the necessary information security skills, knowledge and understanding that could enable them to perform their roles and responsibilities in a secure manner. These information security skills, knowledge and understanding can be acquired through information security education obtained through a qualification that is offered at a higher education institution. At many higher education institutions where information security is taught, it is taught as a single, isolated module at the fourth year level of study. The problem with this is that some computing students do not advance to this level and many of those that do, do not elect information security as a module. This means that these students may graduate and be employed by organisations lacking the necessary information security skills, knowledge and understanding to perform their roles and responsibilities securely. Consequently, this could increase the number of employees who are the “weakest link” in securing organisational information systems and related information assets. The ACM, as a key role player that provides educational guidelines for the development of computing curricula, recommends that information security should be pervasively integrated into computing curricula. However, these guidelines and recommendations do not provide sufficient guidance on “how” computing educators can pervasively integrate information security into their modules. Therefore, the problem identified by this research is that “currently, no generally used framework exists to aid the pervasive integration of information security into undergraduate computing curricula”. The primary research objective of this study, therefore, is to develop a framework to aid the pervasive integration of information security into undergraduate computing curricula. In order to meet this objective, secondary objectives were met, namely: To develop an understanding of the importance of information security; to determine the importance of information security education as it relates to undergraduate computing curricula; and to determine computing educators’ perspectives on information security education in a South African context. Various research methods were used to achieve this study’s research objectives. These research methods included a literature review which was used to define and provide an in-depth discussion relating to the domain in which this study is contained, namely: information security and information security education. Furthermore, a survey which took the form of semi-structured interviews supported by a questionnaire, was used to elicit computing educators’ perspectives on information security education in a South African context. Argumentation was used to argue towards the proposed framework to aid the pervasive integration of information security into undergraduate computing curricula. In addition, modelling techniques were used to model the proposed framework and scenarios were used to demonstrate how a computing department could implement the proposed framework. Finally, elite interviews supported by a questionnaire were conducted to validate the proposed framework. It is envisaged that the proposed framework could assist computing departments and undergraduate computing educators in the integration of information security into their curricula. Furthermore, the pervasive integration of information security into undergraduate computing curricula could ensure that computing graduates exit higher education institutions possessing the necessary information security skills, knowledge and understanding to enable them to perform their roles and responsibilities securely. It is hoped that this could enable computing graduates to become a stronger link in securing organisational information systems and related assets.
- Full Text:
- Date Issued: 2017
User experience guidelines for mobile natural user interfaces: a case study of physically disabled users
- Authors: Jacobs, Gershwin
- Date: 2017
- Subjects: User interfaces (Computer systems) Human-computer interaction , Mobile computing Augmented reality
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/17547 , vital:28377
- Description: Motor impaired people are faced with many challenges, one being the of lack integration into certain spheres of society. Access to information is seen as a major issue for the motor impaired since most forms of interaction or interactive devices are not suited to the needs of motor impaired people. People with motor impairments, like the rest of the population, are increasingly using mobile phones. As a result of the current devices and methods used for interaction with content on mobile phones, various factors prohibit a pleasant experience for users with motor impairments. To counter these factors, this study recognizes the need to implement better suited methods of interaction and navigation to improve accessibility, usability and user experience for motor impaired users. The objective of the study was to gain an understanding of the nature of motor impairments and the challenges that this group of people face when using mobile phones. Once this was determined, a solution to address this problem was found in the form of natural user interfaces. In order to gain a better understanding of this technology, various forms of NUIs and the benefits thereof were studied by the researcher in order to determine how this technology can be implemented to meet the needs of motor impaired people. To test theory, the Samsung Galaxy s5 was selected as the NUI device for the study. It must be noted that this study started in the year 2013 and the Galaxy S5 was the latest device claiming to improve interaction for disabled people at the time. This device was used in a case study that made use of various data collection methods, including participant interviews. Various motor impaired participants were requested to perform predefined tasks on the device, along with the completion of a set of user experience questionnaires. Based on the results of the study, it was found that interaction with mobile phones is an issue for people with motor impairments and that alternative methods of interaction need to be implemented. These results contributed to the final output of this study, namely a set of user experience guidelines for the design of mobile human computer interaction for motor impaired users.
- Full Text:
- Date Issued: 2017
- Authors: Jacobs, Gershwin
- Date: 2017
- Subjects: User interfaces (Computer systems) Human-computer interaction , Mobile computing Augmented reality
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/17547 , vital:28377
- Description: Motor impaired people are faced with many challenges, one being the of lack integration into certain spheres of society. Access to information is seen as a major issue for the motor impaired since most forms of interaction or interactive devices are not suited to the needs of motor impaired people. People with motor impairments, like the rest of the population, are increasingly using mobile phones. As a result of the current devices and methods used for interaction with content on mobile phones, various factors prohibit a pleasant experience for users with motor impairments. To counter these factors, this study recognizes the need to implement better suited methods of interaction and navigation to improve accessibility, usability and user experience for motor impaired users. The objective of the study was to gain an understanding of the nature of motor impairments and the challenges that this group of people face when using mobile phones. Once this was determined, a solution to address this problem was found in the form of natural user interfaces. In order to gain a better understanding of this technology, various forms of NUIs and the benefits thereof were studied by the researcher in order to determine how this technology can be implemented to meet the needs of motor impaired people. To test theory, the Samsung Galaxy s5 was selected as the NUI device for the study. It must be noted that this study started in the year 2013 and the Galaxy S5 was the latest device claiming to improve interaction for disabled people at the time. This device was used in a case study that made use of various data collection methods, including participant interviews. Various motor impaired participants were requested to perform predefined tasks on the device, along with the completion of a set of user experience questionnaires. Based on the results of the study, it was found that interaction with mobile phones is an issue for people with motor impairments and that alternative methods of interaction need to be implemented. These results contributed to the final output of this study, namely a set of user experience guidelines for the design of mobile human computer interaction for motor impaired users.
- Full Text:
- Date Issued: 2017
Work-readiness of university graduates: a professional accounting educational expectation gap in South Africa
- Authors: Schoeman, Lynn Antoinette
- Date: 2017
- Subjects: Accountants -- Employment -- South Africa -- Students , College graduates -- Employment -- South Africa School-to-work transition -- South Africa Employability -- South Africa -- Students
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/20455 , vital:29288
- Description: The constant change in the business environment versus the curriculum content of accounting educational programmes result in a possible gap between the competencies gained by students who complete their degree qualifications compared to the expectations of employers of these entering trainee accountants. However, the universities do endeavour to teach students the syllabus that will provide them with sufficient information and skills to be able to complete the tasks expected from them without much learning following university. Universities face increasing pressure to ensure graduates are equipped with the right employability skills (Osmani, Weerakkody & Hindi, 2017) yet literature show that graduates entering the workforce are not sufficiently equipped with all the necessary non-technical skills required by the accounting profession (Fouché, 2013). The research for this study was guided by the question whether universities sufficiently prepare entering trainee accountants with regards to work-readiness skills and whether a gap exists between the level of work-readiness skills expected by employers in professional accounting practice, and the actual level of capability of these skills transferred through the formal professional accounting educational programmes offered by universities in South Africa. Published literature reviewed on the work-readiness of graduates showed that an educational gap could exist between the skills required by employees and the skills that entering trainee accountants possess. Semi-structured interviews were conducted to gather data from supervisors and/or coordinators from Accredited Training Centres (ATCs) in the Nelson Mandela Bay Region of the South African Institute of Professional Accountants (SAIPA) on their perception of the level of capability expected of entering trainee accountants. The findings of this study showed that the universities provide entering trainee accountants with sufficient knowledge insofar as their technical abilities are concerned. However, employers perceive entering trainee accountants‟ capabilities in terms of their work-readiness skills, as insufficient.
- Full Text:
- Date Issued: 2017
- Authors: Schoeman, Lynn Antoinette
- Date: 2017
- Subjects: Accountants -- Employment -- South Africa -- Students , College graduates -- Employment -- South Africa School-to-work transition -- South Africa Employability -- South Africa -- Students
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/20455 , vital:29288
- Description: The constant change in the business environment versus the curriculum content of accounting educational programmes result in a possible gap between the competencies gained by students who complete their degree qualifications compared to the expectations of employers of these entering trainee accountants. However, the universities do endeavour to teach students the syllabus that will provide them with sufficient information and skills to be able to complete the tasks expected from them without much learning following university. Universities face increasing pressure to ensure graduates are equipped with the right employability skills (Osmani, Weerakkody & Hindi, 2017) yet literature show that graduates entering the workforce are not sufficiently equipped with all the necessary non-technical skills required by the accounting profession (Fouché, 2013). The research for this study was guided by the question whether universities sufficiently prepare entering trainee accountants with regards to work-readiness skills and whether a gap exists between the level of work-readiness skills expected by employers in professional accounting practice, and the actual level of capability of these skills transferred through the formal professional accounting educational programmes offered by universities in South Africa. Published literature reviewed on the work-readiness of graduates showed that an educational gap could exist between the skills required by employees and the skills that entering trainee accountants possess. Semi-structured interviews were conducted to gather data from supervisors and/or coordinators from Accredited Training Centres (ATCs) in the Nelson Mandela Bay Region of the South African Institute of Professional Accountants (SAIPA) on their perception of the level of capability expected of entering trainee accountants. The findings of this study showed that the universities provide entering trainee accountants with sufficient knowledge insofar as their technical abilities are concerned. However, employers perceive entering trainee accountants‟ capabilities in terms of their work-readiness skills, as insufficient.
- Full Text:
- Date Issued: 2017
A study of lanthanide complexes with di-2-pyridyl ligands
- Authors: Coetzee, Louis-Charl Cloete
- Date: 2016
- Subjects: Rare earth metals
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/4731 , vital:20659
- Description: The ligands di(2-pyridyl) ketone (DPK) and cis-1,2 di(2-pyridyl) ethylene (DPE) are N,N,Odonor ligands that can undergo nucleophilic addition and become more flexible for coordination. The reaction between the lanthanide thiocyanate salt and DPK gave rise to seven novel complexes of the general formula [Ln(NCS)3(DPKOH)3], where Ln = La, Ce, Nd, Eu, Tb, Dy and Ho. 1H NMR spectroscopy verified that the ligand underwent nucleophilic addition upon coordination. This was further confirmed using UV-Vis spectroscopy which showed a shift in the absorption bands due to conjugation of electrons within the pyridyl ring upon coordination. UV-Vis spectroscopy was also utilised to test the covalent character of the neodymium and holmium complexes. X-ray diffraction and IR spectroscopy showed that three DPK ligands coordinated bidentately through a pyridinic nitrogen and a hydroxyl oxygen, while three isothiocyanato molecules completed the coordination environment around each metal. Furthermore, X-ray diffraction also revealed that these complexes are isostructural, ninecoordinate and the polyhedron which encloses each ion is of trigonal tricapped prismatic shape with D3h symmetry. Micro-analysis on all the complexes, except lanthanum and holmium confirmed the molecular formulae produced from the crystallographic data of each complex. The reaction between the lanthanide thiocyanate salt and DPE produced poor quality crystals which could not be detected by X-ray diffraction. The lanthanide salts used for this reaction were lanthanum, neodymium, europium, dysprosium and holmium. Upon coordination, conductivity measurements detected the presence of lanthanide ions in each solution. 1H NMR and IR spectroscopic studies showed that the ethylenic moiety of DPE underwent nucleophilic addition upon coordination. UV-Vis spectroscopy further confirmed nucleophilic addition upon coordination due to shifts in absorption bands. IR spectroscopy verified the possibility of a bidentate coordination to each metal through a pyridinic nitrogen and a hydroxyl oxygen as well as a monodentate coordination through isothiocyanato ligands. A micro-analysis on all the complexes provided the molecular formulae that can best fit each complex. The effect of the solvent molecules on the bonding parameters of the lanthanum complex was investigated. An analysis of the results produced from crystallographic data revealed the presence of intermolecular forces which interacted and stabilised the complex.
- Full Text:
- Date Issued: 2016
- Authors: Coetzee, Louis-Charl Cloete
- Date: 2016
- Subjects: Rare earth metals
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/4731 , vital:20659
- Description: The ligands di(2-pyridyl) ketone (DPK) and cis-1,2 di(2-pyridyl) ethylene (DPE) are N,N,Odonor ligands that can undergo nucleophilic addition and become more flexible for coordination. The reaction between the lanthanide thiocyanate salt and DPK gave rise to seven novel complexes of the general formula [Ln(NCS)3(DPKOH)3], where Ln = La, Ce, Nd, Eu, Tb, Dy and Ho. 1H NMR spectroscopy verified that the ligand underwent nucleophilic addition upon coordination. This was further confirmed using UV-Vis spectroscopy which showed a shift in the absorption bands due to conjugation of electrons within the pyridyl ring upon coordination. UV-Vis spectroscopy was also utilised to test the covalent character of the neodymium and holmium complexes. X-ray diffraction and IR spectroscopy showed that three DPK ligands coordinated bidentately through a pyridinic nitrogen and a hydroxyl oxygen, while three isothiocyanato molecules completed the coordination environment around each metal. Furthermore, X-ray diffraction also revealed that these complexes are isostructural, ninecoordinate and the polyhedron which encloses each ion is of trigonal tricapped prismatic shape with D3h symmetry. Micro-analysis on all the complexes, except lanthanum and holmium confirmed the molecular formulae produced from the crystallographic data of each complex. The reaction between the lanthanide thiocyanate salt and DPE produced poor quality crystals which could not be detected by X-ray diffraction. The lanthanide salts used for this reaction were lanthanum, neodymium, europium, dysprosium and holmium. Upon coordination, conductivity measurements detected the presence of lanthanide ions in each solution. 1H NMR and IR spectroscopic studies showed that the ethylenic moiety of DPE underwent nucleophilic addition upon coordination. UV-Vis spectroscopy further confirmed nucleophilic addition upon coordination due to shifts in absorption bands. IR spectroscopy verified the possibility of a bidentate coordination to each metal through a pyridinic nitrogen and a hydroxyl oxygen as well as a monodentate coordination through isothiocyanato ligands. A micro-analysis on all the complexes provided the molecular formulae that can best fit each complex. The effect of the solvent molecules on the bonding parameters of the lanthanum complex was investigated. An analysis of the results produced from crystallographic data revealed the presence of intermolecular forces which interacted and stabilised the complex.
- Full Text:
- Date Issued: 2016
A study of the art object as performative
- Authors: Minkley, Emma Smith
- Date: 2016
- Subjects: Arts -- Miscellanea , Art objects
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/12042 , vital:27022
- Description: My research project explores conventions in art-making and viewing via the notion of the performative art object. The performative (derived from J.L. Austin and Judith Butler’s formulations of the word) is here used predominantly as a term to denote a generative, experiential and iterative process (in this case outlined by art theorist Barbara Bolt) in which intuitive or playful actions of both artist and spectator dictate the route of research. The project, following an A/r/tographical cycle of theoriapraxis-poesis (or theory/research - doing/learning - art/making) as defined by Rita Irwin, thus investigates the relations inherent between artists, spectators or viewers, and objects, and how these may change according to the spaces they are conceived in; from art gallery to urban “non-art” environments. It deals with the inclusion of process or performativity within, or in relation to the art object and how this take on the traditionally static object may have the capacity to change how artworks are envisaged, and more significantly, how they are received, in terms of the effects they (in combination with the viewer) have on the world around them. Blurred in the context of performativity, the art object may become a means of documenting process and in a sense may act as a ‘prop’ for artistic research. This enquiry has involved the study of process and play, as related to creative practice, via a series of object-based events or interventions (including gallery exhibitions and other “non-art” events initiated by the artist outside of conventional art-related space) which have been documented and included in the theoretical research as a means of providing a first-hand narrative of theoretical ideas put into practice. Here Diana Taylor’s understanding of interrelated modes of storing and enacting knowledge as posed in the notion of the archive and repertoire has been utilised as a means of collecting and collating performative and ephemeral research. These events/interventions have further served as a means of gauging viewer interaction and participation, thus actively involving the viewer in the creative act. Jacques Rancière’s notion of the emancipated spectator is here utilised to activate the role of the viewer. In this regard, Martin Heidegger’s concept of handiness or handling serves as a means of “emancipating” spectators by encouraging tactile viewership. It is my intent to open up or reveal new modes of thinking or doing within the viewer when he or she enters a state of performative play within these events. Here the status of the art object is challenged and in this way has the potential to subvert or confront problematic repetitions, both in the identity of the viewer and the space occupied in each event.
- Full Text:
- Date Issued: 2016
- Authors: Minkley, Emma Smith
- Date: 2016
- Subjects: Arts -- Miscellanea , Art objects
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/12042 , vital:27022
- Description: My research project explores conventions in art-making and viewing via the notion of the performative art object. The performative (derived from J.L. Austin and Judith Butler’s formulations of the word) is here used predominantly as a term to denote a generative, experiential and iterative process (in this case outlined by art theorist Barbara Bolt) in which intuitive or playful actions of both artist and spectator dictate the route of research. The project, following an A/r/tographical cycle of theoriapraxis-poesis (or theory/research - doing/learning - art/making) as defined by Rita Irwin, thus investigates the relations inherent between artists, spectators or viewers, and objects, and how these may change according to the spaces they are conceived in; from art gallery to urban “non-art” environments. It deals with the inclusion of process or performativity within, or in relation to the art object and how this take on the traditionally static object may have the capacity to change how artworks are envisaged, and more significantly, how they are received, in terms of the effects they (in combination with the viewer) have on the world around them. Blurred in the context of performativity, the art object may become a means of documenting process and in a sense may act as a ‘prop’ for artistic research. This enquiry has involved the study of process and play, as related to creative practice, via a series of object-based events or interventions (including gallery exhibitions and other “non-art” events initiated by the artist outside of conventional art-related space) which have been documented and included in the theoretical research as a means of providing a first-hand narrative of theoretical ideas put into practice. Here Diana Taylor’s understanding of interrelated modes of storing and enacting knowledge as posed in the notion of the archive and repertoire has been utilised as a means of collecting and collating performative and ephemeral research. These events/interventions have further served as a means of gauging viewer interaction and participation, thus actively involving the viewer in the creative act. Jacques Rancière’s notion of the emancipated spectator is here utilised to activate the role of the viewer. In this regard, Martin Heidegger’s concept of handiness or handling serves as a means of “emancipating” spectators by encouraging tactile viewership. It is my intent to open up or reveal new modes of thinking or doing within the viewer when he or she enters a state of performative play within these events. Here the status of the art object is challenged and in this way has the potential to subvert or confront problematic repetitions, both in the identity of the viewer and the space occupied in each event.
- Full Text:
- Date Issued: 2016
Absorptive capacity for responding to environmental: change an assessment of three public-sector agencies
- Authors: Mc Culloch, Samantha
- Date: 2016
- Subjects: Global environmental change Absorptive capacity (Economics)
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/11762 , vital:26966
- Description: In a time of global environmental instability, public-sector organisations that manage and protect natural resources, which are needed for human wellbeing, play an increasingly important role. These organisations frequently have to weigh up the costs and benefits of managing natural resources and their services for the public good. Management of social-ecological systems is commonly characterised by uncertainty, disagreement and trade-offs. In South Africa, these challenges are compounded by the fact that mandated organisations are often inadequately resourced in terms of finances, skilled staff and infrastructure. In order to maintain the resilience and robustness of social-ecological systems, public-sector organisations need to cultivate a set of dynamic capabilities, with strong emphasis on learning from their experiences and adapting their management strategies, to innovate and improve their performances. Absorptive capacity (AC) has been described as the ability of an organisation to recognise the value of new external information, acquire it and assimilate it within the organisation, transforming it by applying it with existing knowledge and exploiting the new knowledge for benefit. Organisations with good AC are able to recognise rapidly changing environments and address them by renewing and building on their levels of skill, knowledge and capability to deal with change. This construct has been extensively researched in industries related to business and technology, where its development has been found to stimulate innovative capabilities. There has, however, been little research into its relevance for public-sector organisations or organisations with environmental mandates. This study used methodological triangulation to assess the perceptions of employees on the current state of AC in three public-sector organisations with environmental mandates. This was done to gain insight into their capacity to absorb information and apply their new knowledge in decision-making, in a manner that navigates through environmental change. The key findings of this research suggest that knowledge transformation and exploitation are enhanced by in-house research capabilities and cross-functional interface between internal departments. These findings also suggest that the acquisition of knowledge is not only determined by the in-house research capacity but also depends on the resources available to these departments in terms of time, finances and skilled staff. There was minimal evidence of knowledge exploitation; however, obstacles that were highlighted as hindering this process included individual responsibility and motivation, as well as general organisation capacities, such as communication hierarchies, funding, time and organisational silos. This research found that the well-studied concept of AC can be used as an institutional mechanism to assess and promote adaptive capacity in public-sector organisations with environmental mandates to navigate and innovate through the Anthropocene.
- Full Text:
- Date Issued: 2016
- Authors: Mc Culloch, Samantha
- Date: 2016
- Subjects: Global environmental change Absorptive capacity (Economics)
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/11762 , vital:26966
- Description: In a time of global environmental instability, public-sector organisations that manage and protect natural resources, which are needed for human wellbeing, play an increasingly important role. These organisations frequently have to weigh up the costs and benefits of managing natural resources and their services for the public good. Management of social-ecological systems is commonly characterised by uncertainty, disagreement and trade-offs. In South Africa, these challenges are compounded by the fact that mandated organisations are often inadequately resourced in terms of finances, skilled staff and infrastructure. In order to maintain the resilience and robustness of social-ecological systems, public-sector organisations need to cultivate a set of dynamic capabilities, with strong emphasis on learning from their experiences and adapting their management strategies, to innovate and improve their performances. Absorptive capacity (AC) has been described as the ability of an organisation to recognise the value of new external information, acquire it and assimilate it within the organisation, transforming it by applying it with existing knowledge and exploiting the new knowledge for benefit. Organisations with good AC are able to recognise rapidly changing environments and address them by renewing and building on their levels of skill, knowledge and capability to deal with change. This construct has been extensively researched in industries related to business and technology, where its development has been found to stimulate innovative capabilities. There has, however, been little research into its relevance for public-sector organisations or organisations with environmental mandates. This study used methodological triangulation to assess the perceptions of employees on the current state of AC in three public-sector organisations with environmental mandates. This was done to gain insight into their capacity to absorb information and apply their new knowledge in decision-making, in a manner that navigates through environmental change. The key findings of this research suggest that knowledge transformation and exploitation are enhanced by in-house research capabilities and cross-functional interface between internal departments. These findings also suggest that the acquisition of knowledge is not only determined by the in-house research capacity but also depends on the resources available to these departments in terms of time, finances and skilled staff. There was minimal evidence of knowledge exploitation; however, obstacles that were highlighted as hindering this process included individual responsibility and motivation, as well as general organisation capacities, such as communication hierarchies, funding, time and organisational silos. This research found that the well-studied concept of AC can be used as an institutional mechanism to assess and promote adaptive capacity in public-sector organisations with environmental mandates to navigate and innovate through the Anthropocene.
- Full Text:
- Date Issued: 2016
An investigation of the history and works of the Keiskamma Art Project
- Authors: Osner, Heather
- Date: 2016
- Subjects: Community arts projects -- South Africa -- Eastern Cape , Artists and community -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/13038 , vital:27146
- Description: This research study focusses on how and why Carol Hofmeyr began the Keiskamma Art Project in Hamburg, Eastern Cape, as well as the development of the project’s infrastructure, history and detailed business practices and how it has evolved. A chronological detailed pictorial record has been drawn up of the major/monumental works it has produced, its achievements, awards and the accolades it has won. The recurrent narrative themes of HIV/AIDS, Nguni cattle, the Nongquawuse story, local birds, plants and fish which are also discussed. A comparable study, comparing the business practices of the Keiskamma Art Project with the research of Professor Ingrid Stevens on Morris & Co and five other successful, sustained South African Art Projects. Data has been tabulated in an effort to recognise the variances, similarities and differences in an effort to identify a “best practise” business model. Such a model may assist in the development of further art projects, so as to uplift other poverty stricken communities in South Africa. This research study focusses on how and why Carol Hofmeyr began the Keiskamma Art Project in Hamburg, Eastern Cape, as well as the development of the project’s infrastructure, history and detailed business practices and how it has evolved. A chronological detailed pictorial record has been drawn up of the major/monumental works it has produced, its achievements, awards and the accolades it has won. The recurrent narrative themes of HIV/AIDS, Nguni cattle, the Nongquawuse story, local birds, plants and fish which are also discussed. A comparable study, comparing the business practices of the Keiskamma Art Project with the research of Professor Ingrid Stevens on Morris & Co and five other successful, sustained South African Art Projects. Data has been tabulated in an effort to recognise the variances, similarities and differences in an effort to identify a “best practise” business model. Such a model may assist in the development of further art projects, so as to uplift other poverty-stricken communities in South Africa.This research study focusses on how and why Carol Hofmeyr began the Keiskamma Art Project in Hamburg, Eastern Cape, as well as the development of the project’s infrastructure, history and detailed business practices and how it has evolved. A chronological detailed pictorial record has been drawn up of the major/monumental works it has produced, its achievements, awards and the accolades it has won. The recurrent narrative themes of HIV/AIDS, Nguni cattle, the Nongquawuse story, local birds, plants and fish which are also discussed. A comparable study, comparing the business practices of the Keiskamma Art Project with the research of Professor Ingrid Stevens on Morris & Co and five other successful, sustained South African Art Projects. Data has been tabulated in an effort to recognise the variances, similarities and differences in an effort to identify a “best practise” business model. Such a model may assist in the development of further art projects, so as to uplift other poverty stricken communities in South Africa.This research study focusses on how and why Carol Hofmeyr began the Keiskamma Art Project in Hamburg, Eastern Cape, as well as the development of the project’s infrastructure, history and detailed business practices and how it has evolved. A chronological detailed pictorial record has been drawn up of the major/monumental works it has produced, its achievements, awards and the accolades it has won. The recurrent narrative themes of HIV/AIDS, Nguni cattle, the Nongquawuse story, local birds, plants and fish which are also discussed. A comparable study, comparing the business practices of the Keiskamma Art Project with the research of Professor Ingrid Stevens on Morris & Co and five other successful, sustained South African Art Projects. Data has been tabulated in an effort to recognise the variances, similarities and differences in an effort to identify a “best practise” business model. Such a model may assist in the development of further art projects, so as to uplift other poverty stricken communities in South Africa.
- Full Text:
- Date Issued: 2016
- Authors: Osner, Heather
- Date: 2016
- Subjects: Community arts projects -- South Africa -- Eastern Cape , Artists and community -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/13038 , vital:27146
- Description: This research study focusses on how and why Carol Hofmeyr began the Keiskamma Art Project in Hamburg, Eastern Cape, as well as the development of the project’s infrastructure, history and detailed business practices and how it has evolved. A chronological detailed pictorial record has been drawn up of the major/monumental works it has produced, its achievements, awards and the accolades it has won. The recurrent narrative themes of HIV/AIDS, Nguni cattle, the Nongquawuse story, local birds, plants and fish which are also discussed. A comparable study, comparing the business practices of the Keiskamma Art Project with the research of Professor Ingrid Stevens on Morris & Co and five other successful, sustained South African Art Projects. Data has been tabulated in an effort to recognise the variances, similarities and differences in an effort to identify a “best practise” business model. Such a model may assist in the development of further art projects, so as to uplift other poverty stricken communities in South Africa. This research study focusses on how and why Carol Hofmeyr began the Keiskamma Art Project in Hamburg, Eastern Cape, as well as the development of the project’s infrastructure, history and detailed business practices and how it has evolved. A chronological detailed pictorial record has been drawn up of the major/monumental works it has produced, its achievements, awards and the accolades it has won. The recurrent narrative themes of HIV/AIDS, Nguni cattle, the Nongquawuse story, local birds, plants and fish which are also discussed. A comparable study, comparing the business practices of the Keiskamma Art Project with the research of Professor Ingrid Stevens on Morris & Co and five other successful, sustained South African Art Projects. Data has been tabulated in an effort to recognise the variances, similarities and differences in an effort to identify a “best practise” business model. Such a model may assist in the development of further art projects, so as to uplift other poverty-stricken communities in South Africa.This research study focusses on how and why Carol Hofmeyr began the Keiskamma Art Project in Hamburg, Eastern Cape, as well as the development of the project’s infrastructure, history and detailed business practices and how it has evolved. A chronological detailed pictorial record has been drawn up of the major/monumental works it has produced, its achievements, awards and the accolades it has won. The recurrent narrative themes of HIV/AIDS, Nguni cattle, the Nongquawuse story, local birds, plants and fish which are also discussed. A comparable study, comparing the business practices of the Keiskamma Art Project with the research of Professor Ingrid Stevens on Morris & Co and five other successful, sustained South African Art Projects. Data has been tabulated in an effort to recognise the variances, similarities and differences in an effort to identify a “best practise” business model. Such a model may assist in the development of further art projects, so as to uplift other poverty stricken communities in South Africa.This research study focusses on how and why Carol Hofmeyr began the Keiskamma Art Project in Hamburg, Eastern Cape, as well as the development of the project’s infrastructure, history and detailed business practices and how it has evolved. A chronological detailed pictorial record has been drawn up of the major/monumental works it has produced, its achievements, awards and the accolades it has won. The recurrent narrative themes of HIV/AIDS, Nguni cattle, the Nongquawuse story, local birds, plants and fish which are also discussed. A comparable study, comparing the business practices of the Keiskamma Art Project with the research of Professor Ingrid Stevens on Morris & Co and five other successful, sustained South African Art Projects. Data has been tabulated in an effort to recognise the variances, similarities and differences in an effort to identify a “best practise” business model. Such a model may assist in the development of further art projects, so as to uplift other poverty stricken communities in South Africa.
- Full Text:
- Date Issued: 2016
Biological activities of selected South African medicinal plants traditionally used to treat urinary tract infections
- Mathobela, Kegomoditswe Prudence
- Authors: Mathobela, Kegomoditswe Prudence
- Date: 2016
- Subjects: Medicinal plants -- South Africa , Urinary tract infections -- Treatment , Anti-infective agents -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8059 , vital:24715
- Description: Plants have been an important part of medicine and since the existence of human beings; they have been used to cure a variety of ailments such as diarrhoea, wounds and sexually transmitted diseases. Far from being out-dated, the use of traditional medicinal plants plays a significant role in drug discovery and remains a source of medicine still used by many South Africans. Diseases of the urinary tract can be treated using traditional medicinal plants. Although most cases of urinary tract infections (UTIs) are acute and uncomplicated, a few cases do become chronic and complicated. Resistance of pathogens causing UTIs to antibiotics normally used for treatment is one of the reasons for infections developing into the chronic and complicated state. In this study, medicinal plants indigenous to South Africa and traditionally used to treat UTIs were investigated in vitro for antimicrobial activities against UTI-causing pathogens. The plants investigated were Bulbine latifolia, Eucomis autumnalis, Hypoxis hemerocallidea and Trichilia dregeana. American Type Culture Collection (ATCC) microbial strains together with clinical strains were tested against distilled water, methanol and acetone extracts of the plants. The microbial strains included Enterococcus faecalis, Staphylococcus saprophyticus, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa and Candida albicans. The agar well diffusion method was used to screen for antimicrobial activity; the microtiter dilution method to determine the minimum inhibitory concentration; and thin layer chromatography fingerprints to separate the mixtures of the extracts and determine the number of active compounds. The study also investigated the scientific rationale for the traditional use of plant combinations to treat diseases. Three plant combinations (1:1) were investigated for potential interactive properties, which were identified through the sum of the fractional inhibitory concentration index (ΣFIC) calculations. The plant combinations studied were Hypoxis hemerocallidea and Bulbine latifolia; Hypoxis hemerocallidea and Eucomis autumnalis; and Hypoxis hemerocallidea and Trichilia dregeana. In the study, more activity was observed in the microtiter dilution method as compared to the agar well diffusion method. This was true in both the studies of the plants independently and the combination studies. The independent plants displayed noteworthy MIC values (≤ 2 mg/ml) against E. coli, Kleb. pneumoniae, P. mirabilis, P. aeruginosa and C. albicans. The plant combinations studied did not show any synergistic interactions (ΣFIC ≤ 0.5). Only non-interactive (ΣFIC >1.0 - ≤4.0) and additive (ΣFIC >0.5-1.0) interactions were observed. The study contributes to the on-going investigation of antimicrobial activities of medicinal plants and highlights the need for further investigations on the synergistic interactions of the medicinal plants used in this study.
- Full Text:
- Date Issued: 2016
- Authors: Mathobela, Kegomoditswe Prudence
- Date: 2016
- Subjects: Medicinal plants -- South Africa , Urinary tract infections -- Treatment , Anti-infective agents -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8059 , vital:24715
- Description: Plants have been an important part of medicine and since the existence of human beings; they have been used to cure a variety of ailments such as diarrhoea, wounds and sexually transmitted diseases. Far from being out-dated, the use of traditional medicinal plants plays a significant role in drug discovery and remains a source of medicine still used by many South Africans. Diseases of the urinary tract can be treated using traditional medicinal plants. Although most cases of urinary tract infections (UTIs) are acute and uncomplicated, a few cases do become chronic and complicated. Resistance of pathogens causing UTIs to antibiotics normally used for treatment is one of the reasons for infections developing into the chronic and complicated state. In this study, medicinal plants indigenous to South Africa and traditionally used to treat UTIs were investigated in vitro for antimicrobial activities against UTI-causing pathogens. The plants investigated were Bulbine latifolia, Eucomis autumnalis, Hypoxis hemerocallidea and Trichilia dregeana. American Type Culture Collection (ATCC) microbial strains together with clinical strains were tested against distilled water, methanol and acetone extracts of the plants. The microbial strains included Enterococcus faecalis, Staphylococcus saprophyticus, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa and Candida albicans. The agar well diffusion method was used to screen for antimicrobial activity; the microtiter dilution method to determine the minimum inhibitory concentration; and thin layer chromatography fingerprints to separate the mixtures of the extracts and determine the number of active compounds. The study also investigated the scientific rationale for the traditional use of plant combinations to treat diseases. Three plant combinations (1:1) were investigated for potential interactive properties, which were identified through the sum of the fractional inhibitory concentration index (ΣFIC) calculations. The plant combinations studied were Hypoxis hemerocallidea and Bulbine latifolia; Hypoxis hemerocallidea and Eucomis autumnalis; and Hypoxis hemerocallidea and Trichilia dregeana. In the study, more activity was observed in the microtiter dilution method as compared to the agar well diffusion method. This was true in both the studies of the plants independently and the combination studies. The independent plants displayed noteworthy MIC values (≤ 2 mg/ml) against E. coli, Kleb. pneumoniae, P. mirabilis, P. aeruginosa and C. albicans. The plant combinations studied did not show any synergistic interactions (ΣFIC ≤ 0.5). Only non-interactive (ΣFIC >1.0 - ≤4.0) and additive (ΣFIC >0.5-1.0) interactions were observed. The study contributes to the on-going investigation of antimicrobial activities of medicinal plants and highlights the need for further investigations on the synergistic interactions of the medicinal plants used in this study.
- Full Text:
- Date Issued: 2016
Engendering the meaningful use of electronic medical records: a South African perspective
- Chipfumbu, Colletor Tendeukai
- Authors: Chipfumbu, Colletor Tendeukai
- Date: 2016
- Subjects: Electronic records -- South Africa -- Management Information storage and retrieval systems -- Management , Medical records -- South Africa Medical records -- Data processing
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/18420 , vital:28635
- Description: Theoretically, the use of Electronic Medical Records (EMRs) holds promise of numerous benefits in healthcare provision, including improvement in continuity of care, quality of care and safety. However, in practice, there is evidence that the adoption of electronic medical records has been slow and where adopted, often lacks meaningful use. Thus there is a clear dichotomy between the ambitions for EMR use and the reality of EMR implementation. In the USA, a legislative approach was taken to turn around the situation. Other countries such as Canada and European countries have followed suit (in their own way) to address the adoption and meaningful use of electronic medical records. The South African e-Health strategy and the National Health Normative Standards Framework for Interoperability in eHealth in South Africa documents both recommend the adoption of EMRs. Much work has been done to establish a baseline for standards to ensure interoperability and data portability of healthcare applications and data. However, even with the increased focus on e-Health, South Africa remains excessively reliant on paper-based medical records. Where health information technologies have been adopted, there is lack of coordination between and within provinces, leading to a multitude of systems and vendors. Thus there is a lack of systematic adoption and meaningful use of EMRs in South Africa. The main objective of this research is to develop the components required to engender meaningful use of electronic medical records in the South African healthcare context. The main contributors are identified as EMR certification and consistent, proper use of certified EMRs. Literature review, a Delphi study and logical argumentation are used to develop the relevant components for the South African healthcare context. The benefits of EMRs can only be realized through systematic adoption and meaningful use of EMRs, thus this research contributes to providing a road map for engendering the meaningful use of EMRs with the ultimate aim of improving healthcare in the South African healthcare landscape.
- Full Text:
- Date Issued: 2016
- Authors: Chipfumbu, Colletor Tendeukai
- Date: 2016
- Subjects: Electronic records -- South Africa -- Management Information storage and retrieval systems -- Management , Medical records -- South Africa Medical records -- Data processing
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/18420 , vital:28635
- Description: Theoretically, the use of Electronic Medical Records (EMRs) holds promise of numerous benefits in healthcare provision, including improvement in continuity of care, quality of care and safety. However, in practice, there is evidence that the adoption of electronic medical records has been slow and where adopted, often lacks meaningful use. Thus there is a clear dichotomy between the ambitions for EMR use and the reality of EMR implementation. In the USA, a legislative approach was taken to turn around the situation. Other countries such as Canada and European countries have followed suit (in their own way) to address the adoption and meaningful use of electronic medical records. The South African e-Health strategy and the National Health Normative Standards Framework for Interoperability in eHealth in South Africa documents both recommend the adoption of EMRs. Much work has been done to establish a baseline for standards to ensure interoperability and data portability of healthcare applications and data. However, even with the increased focus on e-Health, South Africa remains excessively reliant on paper-based medical records. Where health information technologies have been adopted, there is lack of coordination between and within provinces, leading to a multitude of systems and vendors. Thus there is a lack of systematic adoption and meaningful use of EMRs in South Africa. The main objective of this research is to develop the components required to engender meaningful use of electronic medical records in the South African healthcare context. The main contributors are identified as EMR certification and consistent, proper use of certified EMRs. Literature review, a Delphi study and logical argumentation are used to develop the relevant components for the South African healthcare context. The benefits of EMRs can only be realized through systematic adoption and meaningful use of EMRs, thus this research contributes to providing a road map for engendering the meaningful use of EMRs with the ultimate aim of improving healthcare in the South African healthcare landscape.
- Full Text:
- Date Issued: 2016
Factors affecting the acceptance and meaningful use of picture archive and communication systems by referring clinicians in private practice
- Authors: D'Assonville, Gustav Andre
- Date: 2016
- Subjects: Picture archiving and communication systems in medicine , Imaging systems in medicine
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/4688 , vital:20648
- Description: A Picture Archive and Communication System (PACS) is a health information technology that facilitates the electronic storage, transmission, presentation and processing of digital medical-imaging datasets. The benefits of PACS have been well-documented. It provides a means to replace traditional film-based workflows and their inherent limitations. Referring clinicians’ acceptance is a critical factor in the overall success of a PACS implementation; and given the financial implications of project failure, research into physician acceptance and meaningful use is crucial. Very few PACS acceptance studies have focused on the referring clinicians, and even less in the context of the private sector. Therefore, the problem that this research aims to address is: There is a lack of understanding on which factors influence PACS acceptance and the meaningful use thereof by referring clinicians in private practice. This explorative study follows an embedded mixed methodology approach in order to meet the research objectives, favouring a qualitative method of inquiry with the support of a quantitative strand. Electronic questionnaires were distributed to private practice referring clinicians to probe the aspects related to PACS acceptance and its meaningful use. The conceptual framework, as devised by Paré and Trudel (2007), was used as a theoretical lens to categorize and discuss the research results in terms of Project, Technological, Organizational and Behavioural factors that affect PACS acceptance and its meaningful use. The findings showed good acceptance rates, which is in line with other research conducted in this field, including research done in the public sector. Technical and Organizational factors were the most prevalent. An extension of the above-mentioned theoretical framework was proposed to assist in maintaining positive results after the project Implementation phase has been completed. This research expands the Information Technology PACS body of knowledge – by identifying both the technical and the non-technical factors that are crucial in private practice referring doctor acceptance and meaningful use. By addressing these factors, institutions can improve the likelihood of PACS project success in private practice settings. Maximising referring doctor acceptance and meaningful use could also give private practices a competitive advantage over their competitors.
- Full Text:
- Date Issued: 2016
- Authors: D'Assonville, Gustav Andre
- Date: 2016
- Subjects: Picture archiving and communication systems in medicine , Imaging systems in medicine
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/4688 , vital:20648
- Description: A Picture Archive and Communication System (PACS) is a health information technology that facilitates the electronic storage, transmission, presentation and processing of digital medical-imaging datasets. The benefits of PACS have been well-documented. It provides a means to replace traditional film-based workflows and their inherent limitations. Referring clinicians’ acceptance is a critical factor in the overall success of a PACS implementation; and given the financial implications of project failure, research into physician acceptance and meaningful use is crucial. Very few PACS acceptance studies have focused on the referring clinicians, and even less in the context of the private sector. Therefore, the problem that this research aims to address is: There is a lack of understanding on which factors influence PACS acceptance and the meaningful use thereof by referring clinicians in private practice. This explorative study follows an embedded mixed methodology approach in order to meet the research objectives, favouring a qualitative method of inquiry with the support of a quantitative strand. Electronic questionnaires were distributed to private practice referring clinicians to probe the aspects related to PACS acceptance and its meaningful use. The conceptual framework, as devised by Paré and Trudel (2007), was used as a theoretical lens to categorize and discuss the research results in terms of Project, Technological, Organizational and Behavioural factors that affect PACS acceptance and its meaningful use. The findings showed good acceptance rates, which is in line with other research conducted in this field, including research done in the public sector. Technical and Organizational factors were the most prevalent. An extension of the above-mentioned theoretical framework was proposed to assist in maintaining positive results after the project Implementation phase has been completed. This research expands the Information Technology PACS body of knowledge – by identifying both the technical and the non-technical factors that are crucial in private practice referring doctor acceptance and meaningful use. By addressing these factors, institutions can improve the likelihood of PACS project success in private practice settings. Maximising referring doctor acceptance and meaningful use could also give private practices a competitive advantage over their competitors.
- Full Text:
- Date Issued: 2016
Factors affecting the role of management accounting in manufacturing organisations in Namibia and in the Eastern Cape province of South Africa
- Authors: Kangala, Hendrina
- Date: 2016
- Subjects: Managerial accounting -- Namibia , Managerial accounting -- South Africa -- Eastern Cape , Manufacturing industries -- Accounting
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8318 , vital:26324
- Description: Manufacturing is one of the important sectors needed to improve the economies of Namibia and South Africa. However, the manufacturing sectors of both countries are not performing as planned. Management accounting is one of the requirements needed for a successful organisation. With the aim of reducing costs, improving decision making, profits and customer satisfaction, the main role of management accounting in manufacturing companies of Namibia and the Eastern Cape Province of South Africa is to control cost, forecast and budget, make decisions, report internally, improve profits and manage working capital. This study used an online survey to examine the factors that affect the effectiveness of management accounting in executing this role. The findings of the study revealed that management accounting is affected by the external environment, developments in technology and customer satisfaction. It also found that organisational structure, relationships with stakeholders and management accounting reporting were internal factors affecting management accounting. Specific skills like numerical and analytical skills were also identified as important to the role of management accounting. Based on contingency and role theories, this research aims to find those factors which can be controlled to improve the effectiveness of management accounting systems in manufacturing organisations, and as a result improve the success of those organisations on which these systems are contingent.
- Full Text:
- Date Issued: 2016
- Authors: Kangala, Hendrina
- Date: 2016
- Subjects: Managerial accounting -- Namibia , Managerial accounting -- South Africa -- Eastern Cape , Manufacturing industries -- Accounting
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8318 , vital:26324
- Description: Manufacturing is one of the important sectors needed to improve the economies of Namibia and South Africa. However, the manufacturing sectors of both countries are not performing as planned. Management accounting is one of the requirements needed for a successful organisation. With the aim of reducing costs, improving decision making, profits and customer satisfaction, the main role of management accounting in manufacturing companies of Namibia and the Eastern Cape Province of South Africa is to control cost, forecast and budget, make decisions, report internally, improve profits and manage working capital. This study used an online survey to examine the factors that affect the effectiveness of management accounting in executing this role. The findings of the study revealed that management accounting is affected by the external environment, developments in technology and customer satisfaction. It also found that organisational structure, relationships with stakeholders and management accounting reporting were internal factors affecting management accounting. Specific skills like numerical and analytical skills were also identified as important to the role of management accounting. Based on contingency and role theories, this research aims to find those factors which can be controlled to improve the effectiveness of management accounting systems in manufacturing organisations, and as a result improve the success of those organisations on which these systems are contingent.
- Full Text:
- Date Issued: 2016
Factors that influence the sustainability of rural crop production community projects in the Umzimvubu District
- Authors: Majiki, Fezeka
- Date: 2016
- Subjects: Sustainable agriculture -- South Africa -- Eastern Cape , Economic development projects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8089 , vital:24991
- Description: Maize production is the main cropping activity in the Umzimvubu district. This cereal crop is the staple food for the Eastern Cape’s rural communities and accounts for nearly 95 per cent of the crops cultivated in dry-land cropping programmes. Food security in rural areas has been a major concern for the South African government. In attempts to mitigate hunger and poverty, the government has initiated rural development maize production projects. The primary objectives of the projects were to achieve sustainable livelihoods and rural development for the poor. The projects were expected to improve the quality of rural life and provide basic nutritional requirements of the community. Historically the rural poor have had to fend for themselves through subsistence farming in adverse environments. Input costs for farming have become increasingly expensive; this resulted in major challenges for subsistence farming. The crop production projects initiated in the Umzimvubu district have not been sustainable and have fallen short of addressing the needs of the various communities. The study aims to identify the factors that influence the sustainability of the crop production projects in the Umzimvubu district. A triangulation research method was used to provide multiple viewpoints to examine the data; this allows for greater accuracy of the research. The mixed method approach in which the researcher collects and analyses data integrates the findings and draws inferences using both qualitative and quantitative methodology. The quantitative research methodology provided the demographics and biographical data on the participants. The qualitative research methodology concentrated on the focus group discussions that gave an insight into the participants' views, perceptions and concerns. Focus groups were used to examine the factors influencing the sustain-ability of the projects and to explore how these projects are perceived and under-stood by the community and people working on the projects. The research interest is not only in what the project beneficiaries think, but also in why they think as they do. The main data collection was obtained from the focus groups and individual face-to-face interviews with the beneficiaries of the crop projects in the Umzimvubu district. It was found that the farming areas required rehabilitation, were susceptible to erosion and degradation, and lacked adequate land use practices. The beneficiaries of the cropping programmes had small amounts of other crops growing in their individual household gardens for household use in conjunction with the maize received from the maize programmes. The income made from selling maize from the programmes was insignificant and did not contribute substantially to the household needs, as the communities in these projects were still failing to secure adequate food requirements. The maize yields do not substantiate the monetary investment from the beneficiaries. Furthermore, the findings indicated that the beneficiaries do not receive consistent income from the programmes. The participants consisted of large households comprising mainly elderly people who depended on social grants as a regular source of income. These elderly were burdened with taking care of their grandchildren, whose parents were employed in either urban areas or unemployed and formed part of the household. The unemployed young adults also depended on child support grants for income. The maize harvested had to be shared between a large number of community members and the livestock. The findings also suggested that there was dependency on outside contractors for cultivation and other practices. The study found that most of the beneficiaries felt disempowered, as they had not been involved in the decision-making process. Furthermore, policy-makers failed to acknowledge existing indigenous knowledge and practices of the rural communities (i.e. inter-cropping and green mealie harvesting). Indigenous practices should be included into the programmes instead of compelling beneficiaries to adhere to new forms of cultivation. The communities introduction to new large-scale and challenging, highly technological methods resulted in most of the communities being fully dependent on government support and guidance. Training and the empowerment of beneficiaries are imperative. Rural people should be included in development of strategies and the role of the women should be given more recognition. It should be acknowledged that rural households are diverse and that the model cannot apply to each village or community.
- Full Text:
- Date Issued: 2016
- Authors: Majiki, Fezeka
- Date: 2016
- Subjects: Sustainable agriculture -- South Africa -- Eastern Cape , Economic development projects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8089 , vital:24991
- Description: Maize production is the main cropping activity in the Umzimvubu district. This cereal crop is the staple food for the Eastern Cape’s rural communities and accounts for nearly 95 per cent of the crops cultivated in dry-land cropping programmes. Food security in rural areas has been a major concern for the South African government. In attempts to mitigate hunger and poverty, the government has initiated rural development maize production projects. The primary objectives of the projects were to achieve sustainable livelihoods and rural development for the poor. The projects were expected to improve the quality of rural life and provide basic nutritional requirements of the community. Historically the rural poor have had to fend for themselves through subsistence farming in adverse environments. Input costs for farming have become increasingly expensive; this resulted in major challenges for subsistence farming. The crop production projects initiated in the Umzimvubu district have not been sustainable and have fallen short of addressing the needs of the various communities. The study aims to identify the factors that influence the sustainability of the crop production projects in the Umzimvubu district. A triangulation research method was used to provide multiple viewpoints to examine the data; this allows for greater accuracy of the research. The mixed method approach in which the researcher collects and analyses data integrates the findings and draws inferences using both qualitative and quantitative methodology. The quantitative research methodology provided the demographics and biographical data on the participants. The qualitative research methodology concentrated on the focus group discussions that gave an insight into the participants' views, perceptions and concerns. Focus groups were used to examine the factors influencing the sustain-ability of the projects and to explore how these projects are perceived and under-stood by the community and people working on the projects. The research interest is not only in what the project beneficiaries think, but also in why they think as they do. The main data collection was obtained from the focus groups and individual face-to-face interviews with the beneficiaries of the crop projects in the Umzimvubu district. It was found that the farming areas required rehabilitation, were susceptible to erosion and degradation, and lacked adequate land use practices. The beneficiaries of the cropping programmes had small amounts of other crops growing in their individual household gardens for household use in conjunction with the maize received from the maize programmes. The income made from selling maize from the programmes was insignificant and did not contribute substantially to the household needs, as the communities in these projects were still failing to secure adequate food requirements. The maize yields do not substantiate the monetary investment from the beneficiaries. Furthermore, the findings indicated that the beneficiaries do not receive consistent income from the programmes. The participants consisted of large households comprising mainly elderly people who depended on social grants as a regular source of income. These elderly were burdened with taking care of their grandchildren, whose parents were employed in either urban areas or unemployed and formed part of the household. The unemployed young adults also depended on child support grants for income. The maize harvested had to be shared between a large number of community members and the livestock. The findings also suggested that there was dependency on outside contractors for cultivation and other practices. The study found that most of the beneficiaries felt disempowered, as they had not been involved in the decision-making process. Furthermore, policy-makers failed to acknowledge existing indigenous knowledge and practices of the rural communities (i.e. inter-cropping and green mealie harvesting). Indigenous practices should be included into the programmes instead of compelling beneficiaries to adhere to new forms of cultivation. The communities introduction to new large-scale and challenging, highly technological methods resulted in most of the communities being fully dependent on government support and guidance. Training and the empowerment of beneficiaries are imperative. Rural people should be included in development of strategies and the role of the women should be given more recognition. It should be acknowledged that rural households are diverse and that the model cannot apply to each village or community.
- Full Text:
- Date Issued: 2016
Information security assurance model for an examination paper preparation process in a higher education institution
- Authors: Mogale, Miemie
- Date: 2016
- Subjects: Computer security -- Management -- Examinations , Computers -- Access control
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8509 , vital:26377
- Description: In today’s business world, information has become the driving force of organizations. With organizations transmitting large amounts of information to various geographical locations, it is imperative that organizations ensure the protection of their valuable commodity. Organizations should ensure that only authorized individuals receive, view and alter the information. This is also true to Higher Education Institutions (HEIs), which need to protect its examination papers, amongst other valuable information. With various threats waiting to take advantage of the examination papers, HEIs need to be prepared by equipping themselves with an information security management system (ISMS), in order to ensure that the process of setting examination papers is secure, and protects the examination papers within the process. An ISMS will ensure that all information security aspects are considered and addressed in order to provide appropriate and adequate protection for the examination papers. With the assistance of information security concepts and information security principles, the ISMS can be developed, in order to secure the process of preparing examination papers; in order to protect the examination papers from potential risks. Risk assessment form part of the ISMS, and is at the centre of any security effort; reason being that to secure an information environment, knowing and understanding the risks is imperative. Risks pertaining to that particular environment need to be assessed in order to deal with those appropriately. In addition, very important to any security effort is ensuring that employees working with the valuable information are made aware of these risks, and can be able to protect the information. Therefore, the role players (within the examination paper preparation process (EPPP)) who handle the examination papers on a daily basis have to be equipped with means of handling valuable information in a secure manner. Some of the role players’ behaviour and practices while handling the information could be seen as vulnerabilities that could be exploited by threats, resulting in the compromise in the CIA of the information. Therefore, it is imperative that role players are made aware of their practices and iv behaviour that could result in a negative impact for the institution. This awareness forms part and is addressed in the ISMS.
- Full Text:
- Date Issued: 2016
- Authors: Mogale, Miemie
- Date: 2016
- Subjects: Computer security -- Management -- Examinations , Computers -- Access control
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8509 , vital:26377
- Description: In today’s business world, information has become the driving force of organizations. With organizations transmitting large amounts of information to various geographical locations, it is imperative that organizations ensure the protection of their valuable commodity. Organizations should ensure that only authorized individuals receive, view and alter the information. This is also true to Higher Education Institutions (HEIs), which need to protect its examination papers, amongst other valuable information. With various threats waiting to take advantage of the examination papers, HEIs need to be prepared by equipping themselves with an information security management system (ISMS), in order to ensure that the process of setting examination papers is secure, and protects the examination papers within the process. An ISMS will ensure that all information security aspects are considered and addressed in order to provide appropriate and adequate protection for the examination papers. With the assistance of information security concepts and information security principles, the ISMS can be developed, in order to secure the process of preparing examination papers; in order to protect the examination papers from potential risks. Risk assessment form part of the ISMS, and is at the centre of any security effort; reason being that to secure an information environment, knowing and understanding the risks is imperative. Risks pertaining to that particular environment need to be assessed in order to deal with those appropriately. In addition, very important to any security effort is ensuring that employees working with the valuable information are made aware of these risks, and can be able to protect the information. Therefore, the role players (within the examination paper preparation process (EPPP)) who handle the examination papers on a daily basis have to be equipped with means of handling valuable information in a secure manner. Some of the role players’ behaviour and practices while handling the information could be seen as vulnerabilities that could be exploited by threats, resulting in the compromise in the CIA of the information. Therefore, it is imperative that role players are made aware of their practices and iv behaviour that could result in a negative impact for the institution. This awareness forms part and is addressed in the ISMS.
- Full Text:
- Date Issued: 2016
Investigating the effectiveness of microcatchments at enhancing transplant performance in Nama-Karoo riparian ecosystem restoration
- Jackson, Andrew St. John, Wigley, Benjamin, Schumann, Bonnie, Currie, Bianca
- Authors: Jackson, Andrew St. John , Wigley, Benjamin , Schumann, Bonnie , Currie, Bianca
- Date: 2016
- Subjects: Arid regions agriculture , Environmental degradation , Range ecology
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/7469 , vital:21782
- Description: Globally agricultural rangelands have been subjected to degradation through over-utilization. The loss of productivity of agricultural rangelands around the world has led to the development of methods to restore the productivity of these areas. In South Africa, extensive areas of the Nama-Karoo have been degraded or transformed due in part to unsustainable agricultural activities. The development of restoration methods which are easily implementable and financially viable could increase the probability of stakeholders implementing restoration activities on privately owned land. The removal of the degrading factor is not sufficient to reverse the degradative trend in dryland environments. Active measures must be implemented to arrest the degradation cascade. The climatic conditions of the rangelands of South Africa are limiting to plant performance and the favourable conditions are sporadic. The translocation of plants should be combined with the amelioration of the local conditions. This study tested the restoration technique of microcatchments in association with plant translocation. The effects of microcatchments and planting combinations which were best suited to the survival and performance of the transplants were determined through a field trail. The results showed that microcatchments created microsites which were conducive to transplant survival and growth, including nutrient accumulation and increased soil moisture. The success of the method was dependent on the planting combination used. Plants which are adapted to inundation and the saline conditions of the site performed better. Plants which were older at the time of translocation had higher survival rates than younger transplants. In the conditions of this site, planting adjacent to the microcatchments was necessary to avoid inundation induced mortalities. The environmental conditions of the Nama-Karoo necessitate the coordination of restoration activities with the predicted favourable conditions in order to improve the success of restoration activities.
- Full Text:
- Date Issued: 2016
- Authors: Jackson, Andrew St. John , Wigley, Benjamin , Schumann, Bonnie , Currie, Bianca
- Date: 2016
- Subjects: Arid regions agriculture , Environmental degradation , Range ecology
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/7469 , vital:21782
- Description: Globally agricultural rangelands have been subjected to degradation through over-utilization. The loss of productivity of agricultural rangelands around the world has led to the development of methods to restore the productivity of these areas. In South Africa, extensive areas of the Nama-Karoo have been degraded or transformed due in part to unsustainable agricultural activities. The development of restoration methods which are easily implementable and financially viable could increase the probability of stakeholders implementing restoration activities on privately owned land. The removal of the degrading factor is not sufficient to reverse the degradative trend in dryland environments. Active measures must be implemented to arrest the degradation cascade. The climatic conditions of the rangelands of South Africa are limiting to plant performance and the favourable conditions are sporadic. The translocation of plants should be combined with the amelioration of the local conditions. This study tested the restoration technique of microcatchments in association with plant translocation. The effects of microcatchments and planting combinations which were best suited to the survival and performance of the transplants were determined through a field trail. The results showed that microcatchments created microsites which were conducive to transplant survival and growth, including nutrient accumulation and increased soil moisture. The success of the method was dependent on the planting combination used. Plants which are adapted to inundation and the saline conditions of the site performed better. Plants which were older at the time of translocation had higher survival rates than younger transplants. In the conditions of this site, planting adjacent to the microcatchments was necessary to avoid inundation induced mortalities. The environmental conditions of the Nama-Karoo necessitate the coordination of restoration activities with the predicted favourable conditions in order to improve the success of restoration activities.
- Full Text:
- Date Issued: 2016
Investigating the effects of mopane worms (Imbrasia belina) on nutrients, Venetia-Limpopo Nature Reserve, South Africa
- De Swardt, Donovan Barry, O’Connor, Tim
- Authors: De Swardt, Donovan Barry , O’Connor, Tim
- Date: 2016
- Subjects: Herbivores -- Ecology -- South Africa -- Limpopo , Phytophagous insects -- South Africa -- Limpopo , Mopane worm -- South Africa -- Limpopo , Soil fertility -- South Africa -- Limpopo
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/9273 , vital:26558
- Description: Ecologists have long been aware that large mammalian herbivores can alter ecosystem functioning in various ways, for example through changing where they defecate and urinate, which consequently affects nutrient cycling. The effects of herbivorous insects on ecosystems, however, have received limited attention until recently. Insects are capable of mass outbreaks, they can consume large volumes of vegetative material and can deposit large quantities of dung (frass), one example being the mopane worm, Imbrasia belina. This study looked at the effect of mopane worm frass on soil fertility in the mopane veld of the Venetia-Limpopo Nature Reserve and neighbouring Haakdoring farm. It found that mopane worms are capable of altering soil nutrient dynamics beneath the trees where they are browsing in three ways. Firstly, they increase the potential amount of nutrients deposited when compared with that deposited through conventional leaf litter. Secondly, they alter the rate of nutrient recycling by depositing nutrients in frass which decomposes more rapidly than conventional leaf litter. Lastly, they increase the amounts of potassium and phosphorus in the soil. While there is no conclusive data from this study that the mopane veld would become extinct if mopane worms were harvested to extinction, it has shown that there is relatively little evidence on how herbivorous insects could affect ecosystem functioning in the landscapes in which they occur. Further research is recommended that investigates how mopane worms influence soil fertility in more detail and over multiple geographical locations.
- Full Text:
- Date Issued: 2016
- Authors: De Swardt, Donovan Barry , O’Connor, Tim
- Date: 2016
- Subjects: Herbivores -- Ecology -- South Africa -- Limpopo , Phytophagous insects -- South Africa -- Limpopo , Mopane worm -- South Africa -- Limpopo , Soil fertility -- South Africa -- Limpopo
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/9273 , vital:26558
- Description: Ecologists have long been aware that large mammalian herbivores can alter ecosystem functioning in various ways, for example through changing where they defecate and urinate, which consequently affects nutrient cycling. The effects of herbivorous insects on ecosystems, however, have received limited attention until recently. Insects are capable of mass outbreaks, they can consume large volumes of vegetative material and can deposit large quantities of dung (frass), one example being the mopane worm, Imbrasia belina. This study looked at the effect of mopane worm frass on soil fertility in the mopane veld of the Venetia-Limpopo Nature Reserve and neighbouring Haakdoring farm. It found that mopane worms are capable of altering soil nutrient dynamics beneath the trees where they are browsing in three ways. Firstly, they increase the potential amount of nutrients deposited when compared with that deposited through conventional leaf litter. Secondly, they alter the rate of nutrient recycling by depositing nutrients in frass which decomposes more rapidly than conventional leaf litter. Lastly, they increase the amounts of potassium and phosphorus in the soil. While there is no conclusive data from this study that the mopane veld would become extinct if mopane worms were harvested to extinction, it has shown that there is relatively little evidence on how herbivorous insects could affect ecosystem functioning in the landscapes in which they occur. Further research is recommended that investigates how mopane worms influence soil fertility in more detail and over multiple geographical locations.
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- Date Issued: 2016