Vulnerability to violence : a comparative perspective of the immigrant business community in the townships of Nelson Mandela Bay
- Authors: Shek, Mohammed Ahmed
- Date: 2012
- Subjects: Immigrants , Immigrants -- Violence against -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9144 , http://hdl.handle.net/10948/d1018807
- Description: The research seeks to explore why women in Zimbabwe still face hindrances in accessing micro finance services and what can be done to meet their needs in a more holistic and effective way. Women play a crucial role in the economic development of their families and communities but are faced with certain obstacles that hinder them from performing their role effectively. Such hindrances as poverty, unemployment, low household income and societal discrimination. UNIFEM (1992) confirms that the majority of the world‟s poor have a predominantly female face and argues that women earn only 10 percent of world‟s income and own less than 10 percent of the world‟s property. African women have been characterised by the lack of empowerment caused by societal perceptions and negative cultural practice. In many cases of women rights violation it has been noted that this has been exacerbated by the over reliance on the male counterpart. Development practitioners have noted that micro finance as one of the strategies needed for women empowerment. Despite the concept having been practiced for at least 15 years now, women still face challenges in accessing micro finance services. There is need for Micro Finance Institutions to recognise the position of women in relation to men as actors in society.
- Full Text:
- Date Issued: 2012
- Authors: Shek, Mohammed Ahmed
- Date: 2012
- Subjects: Immigrants , Immigrants -- Violence against -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9144 , http://hdl.handle.net/10948/d1018807
- Description: The research seeks to explore why women in Zimbabwe still face hindrances in accessing micro finance services and what can be done to meet their needs in a more holistic and effective way. Women play a crucial role in the economic development of their families and communities but are faced with certain obstacles that hinder them from performing their role effectively. Such hindrances as poverty, unemployment, low household income and societal discrimination. UNIFEM (1992) confirms that the majority of the world‟s poor have a predominantly female face and argues that women earn only 10 percent of world‟s income and own less than 10 percent of the world‟s property. African women have been characterised by the lack of empowerment caused by societal perceptions and negative cultural practice. In many cases of women rights violation it has been noted that this has been exacerbated by the over reliance on the male counterpart. Development practitioners have noted that micro finance as one of the strategies needed for women empowerment. Despite the concept having been practiced for at least 15 years now, women still face challenges in accessing micro finance services. There is need for Micro Finance Institutions to recognise the position of women in relation to men as actors in society.
- Full Text:
- Date Issued: 2012
Vulindela!: opening the gates of journalism
- Authors: Schoon, Alette
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159528 , vital:40305 , https://hdl.handle.net/10520/EJC134094
- Description: A group of teenagers crowd together in a hall in Fingo Village, Grahamstown. They listen with rapt attention as one of them shares his anger at being short-changed in terms of his own future - teachers are absent for two out of every six school periods, compromising his chances of education.
- Full Text:
- Date Issued: 2012
- Authors: Schoon, Alette
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159528 , vital:40305 , https://hdl.handle.net/10520/EJC134094
- Description: A group of teenagers crowd together in a hall in Fingo Village, Grahamstown. They listen with rapt attention as one of them shares his anger at being short-changed in terms of his own future - teachers are absent for two out of every six school periods, compromising his chances of education.
- Full Text:
- Date Issued: 2012
VoIP : a corporate governance approach to avoid the risk of civil liability
- Authors: Gerber, Tian Johannes
- Date: 2012
- Subjects: Internet telephony -- Security measures , Telecommunication policy -- South Africa , Computer network protocols -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9812 , http://hdl.handle.net/10948/d1016272
- Description: Since the deregulation of Voice over Internet Protocol (VoIP) in 2005, many South African organizations are now attempting to leverage its cost saving and competitive values. However, it has been recently cited that VoIP is one of the greatest new risks to organizations and this risk is cited to increase Information Security insurance premiums in the near future. Due to the dynamic nature of the VoIP technology, regulatory and legislative concerns such as lawful interception of communications and privacy may also contribute to business risk. In order to leverage value from the VoIP implementation, an organization should implement the technology with knowledge of the potential risk of civil liability. This is further highlighted by the King III Report which indicates that the Directors of an organization should be ultimately responsible for Corporate Governance and, therefore, IT Governance and Information Security Governance. The report goes further to say that any newly implemented technology, such as VoIP, should comply with all South African legislation and regulations. This responsibility encourages the practice of both due care and due diligence. However, recent trends exercised by Information Security professionals, responsible for drafting Information Security policies and related procedures, often neglect the regulatory requirements and choose to only implement international best practices with no consideration of the risk of civil liability. Although these best practice frameworks may inadvertently comply with existing local legislation, a chance of an oversight is possible. Oversights may not only result in criminal sanctions, but also civil action due to losses or damages suffered. With regard to implementing VoIP, good Corporate Governance could potentially be ensured through the use of both identified regulations and relevant international best practices. This dissertation aims to aid organizations in avoiding or at least mitigating the risk of civil liability to better leverage VoIP’s value, through good Corporate Governance practices. This should aid in the exercise of due care and due diligence when implementing VoIP as a means of conducting business communication.
- Full Text:
- Date Issued: 2012
- Authors: Gerber, Tian Johannes
- Date: 2012
- Subjects: Internet telephony -- Security measures , Telecommunication policy -- South Africa , Computer network protocols -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9812 , http://hdl.handle.net/10948/d1016272
- Description: Since the deregulation of Voice over Internet Protocol (VoIP) in 2005, many South African organizations are now attempting to leverage its cost saving and competitive values. However, it has been recently cited that VoIP is one of the greatest new risks to organizations and this risk is cited to increase Information Security insurance premiums in the near future. Due to the dynamic nature of the VoIP technology, regulatory and legislative concerns such as lawful interception of communications and privacy may also contribute to business risk. In order to leverage value from the VoIP implementation, an organization should implement the technology with knowledge of the potential risk of civil liability. This is further highlighted by the King III Report which indicates that the Directors of an organization should be ultimately responsible for Corporate Governance and, therefore, IT Governance and Information Security Governance. The report goes further to say that any newly implemented technology, such as VoIP, should comply with all South African legislation and regulations. This responsibility encourages the practice of both due care and due diligence. However, recent trends exercised by Information Security professionals, responsible for drafting Information Security policies and related procedures, often neglect the regulatory requirements and choose to only implement international best practices with no consideration of the risk of civil liability. Although these best practice frameworks may inadvertently comply with existing local legislation, a chance of an oversight is possible. Oversights may not only result in criminal sanctions, but also civil action due to losses or damages suffered. With regard to implementing VoIP, good Corporate Governance could potentially be ensured through the use of both identified regulations and relevant international best practices. This dissertation aims to aid organizations in avoiding or at least mitigating the risk of civil liability to better leverage VoIP’s value, through good Corporate Governance practices. This should aid in the exercise of due care and due diligence when implementing VoIP as a means of conducting business communication.
- Full Text:
- Date Issued: 2012
Voices from the forest: celebrating nature and culture in Xhosaland
- Dold, Anthony P, Cocks, Michelle L
- Authors: Dold, Anthony P , Cocks, Michelle L
- Date: 2012
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/141427 , vital:37971 , ISBN 9781431402991 , https://www.amazon.com/Voices-Forest-Celebrating-Culture-Xhosaland/dp/1431402990
- Description: The link between people and nature is explored in this fascinating book, revealing how plants, animals, and landscapes are profoundly reflected in South Africa’s Xhosa language, stories, poetry, religious rituals, healing practices, and everyday customs. While the South African landscape has for centuries been molded and manipulated by humans, the country and its plants and animals have in turn influenced South Africans’ cultural and spiritual development. Based on 10 years of research, it consists of unique photographs that portray how both contemporary rural and urban South Africans still find great value in nature. A fresh, positive approach to biodiversity conservation, this volume serves as a guide to sustainable practices in the future.
- Full Text:
- Date Issued: 2012
- Authors: Dold, Anthony P , Cocks, Michelle L
- Date: 2012
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/141427 , vital:37971 , ISBN 9781431402991 , https://www.amazon.com/Voices-Forest-Celebrating-Culture-Xhosaland/dp/1431402990
- Description: The link between people and nature is explored in this fascinating book, revealing how plants, animals, and landscapes are profoundly reflected in South Africa’s Xhosa language, stories, poetry, religious rituals, healing practices, and everyday customs. While the South African landscape has for centuries been molded and manipulated by humans, the country and its plants and animals have in turn influenced South Africans’ cultural and spiritual development. Based on 10 years of research, it consists of unique photographs that portray how both contemporary rural and urban South Africans still find great value in nature. A fresh, positive approach to biodiversity conservation, this volume serves as a guide to sustainable practices in the future.
- Full Text:
- Date Issued: 2012
Violence and the cultural logics of pain: representations of sexuality in the work of Nicholas Hlobo and Zanele Muholi
- Authors: Makhubu, Nomusa
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147814 , vital:38675 , https://0-doi.org.wam.seals.ac.za/10.1080/02560046.2012.723843
- Description: Nicholas Hlobo and Zanele Muholi have raised critical issues regarding sexual identity in patriarchal contexts since they premiered at the Michael Stevenson Gallery in 2005. Nicholas Hlobo, a sculptor and performance artist, and Zanele Muholi, a photographer and activist, explore different ways of representing sexuality – in particular, homosexuality. Hlobo investigates notions of masculinity and the practice of circumcision, while Muholi documents the existence of transgender and homosexuality in township spaces (her recent work expands to various other spaces). This article focuses on the roles that violence plays in the sexual politics represented in Hlobo and Muholi’s work.
- Full Text:
- Date Issued: 2012
- Authors: Makhubu, Nomusa
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147814 , vital:38675 , https://0-doi.org.wam.seals.ac.za/10.1080/02560046.2012.723843
- Description: Nicholas Hlobo and Zanele Muholi have raised critical issues regarding sexual identity in patriarchal contexts since they premiered at the Michael Stevenson Gallery in 2005. Nicholas Hlobo, a sculptor and performance artist, and Zanele Muholi, a photographer and activist, explore different ways of representing sexuality – in particular, homosexuality. Hlobo investigates notions of masculinity and the practice of circumcision, while Muholi documents the existence of transgender and homosexuality in township spaces (her recent work expands to various other spaces). This article focuses on the roles that violence plays in the sexual politics represented in Hlobo and Muholi’s work.
- Full Text:
- Date Issued: 2012
Videographic analysis of the Coelacanth, Latimeria Chalumnae, and associated habitats in the Isimangaliso Wetland Park, KwaZulu-Natal, South Africa
- Thornycroft, Rosanne Elizabeth
- Authors: Thornycroft, Rosanne Elizabeth
- Date: 2012
- Subjects: Isimangaliso Wetland Park , Coelacanth , Coelacanth -- South Africa -- KwaZulu-Natal , Habitat (Ecology) , Coelacanth -- Behavior -- South Africa -- KwaZulu-Natal , Coelacanth -- Habitat -- South Africa -- KwaZulu-Natal
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5333 , http://hdl.handle.net/10962/d1005179 , Isimangaliso Wetland Park , Coelacanth , Coelacanth -- South Africa -- KwaZulu-Natal , Habitat (Ecology) , Coelacanth -- Behavior -- South Africa -- KwaZulu-Natal , Coelacanth -- Habitat -- South Africa -- KwaZulu-Natal
- Description: Videography is a valuable tool in biological and ecological studies. Using video footage obtained during previous coelacanth surveys, this thesis investigated coelacanths and their associated habitats in the submarine canyons of iSimangaliso Wetland Park, South Africa. This thesis aimed to (1) describe the biological habitats within the submarine canyons, (2) determine coelacanth distribution within these habitats, and (3) assess the use of computer-aided identification to successfully identify individual coelacanths. Seven different habitat types were noted with the most distinctive being the canyon margins that consisted of dense agglomerations of gorgonians, wire and whip corals, and sponges. Results suggested that although substratum type has a great influence on invertebrate community structure in the canyons, depth is the principal factor. Coelacanths were associated with cave habitats within the steep rocky canyon walls. Habitat analyses allowed predictive classification tree models to be constructed. Depth, underlying percentage of rock, and percentage cover of gorgonians and sponges were the most important variables for determining coelacanth presence and absence. The overall correct classification rate for the model was estimated at 96.6%, correctly predicting coelacanth absence (> 99%) better than presence (60%). Because coelacanths have a unique spot pattern it was possible to quickly and accurately identify specific individuals photographically using computer-aided identification software. Without any manual intervention by an operator the software accurately identified between 56 and 92% of the individuals. Identification success increased to 100% if the operator could also manually select from other potential matching photographs. It was also shown that fish exhibiting a yaw angle not exceeding 60° could be accurately identified in photographs. Each of the sections presented in this thesis represent a possible step towards analysing coelacanth-related habitats, locating and then analysing new habitats. Steps include first locating a population and then performing a habitat analysis. Coelacanth location within the different habitats can then be determined allowing the development of predictive models to potentially identify possible locations of new populations. The final step is to identify individual fish within the population for assessing demographic parameters and population monitoring.
- Full Text:
- Date Issued: 2012
- Authors: Thornycroft, Rosanne Elizabeth
- Date: 2012
- Subjects: Isimangaliso Wetland Park , Coelacanth , Coelacanth -- South Africa -- KwaZulu-Natal , Habitat (Ecology) , Coelacanth -- Behavior -- South Africa -- KwaZulu-Natal , Coelacanth -- Habitat -- South Africa -- KwaZulu-Natal
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5333 , http://hdl.handle.net/10962/d1005179 , Isimangaliso Wetland Park , Coelacanth , Coelacanth -- South Africa -- KwaZulu-Natal , Habitat (Ecology) , Coelacanth -- Behavior -- South Africa -- KwaZulu-Natal , Coelacanth -- Habitat -- South Africa -- KwaZulu-Natal
- Description: Videography is a valuable tool in biological and ecological studies. Using video footage obtained during previous coelacanth surveys, this thesis investigated coelacanths and their associated habitats in the submarine canyons of iSimangaliso Wetland Park, South Africa. This thesis aimed to (1) describe the biological habitats within the submarine canyons, (2) determine coelacanth distribution within these habitats, and (3) assess the use of computer-aided identification to successfully identify individual coelacanths. Seven different habitat types were noted with the most distinctive being the canyon margins that consisted of dense agglomerations of gorgonians, wire and whip corals, and sponges. Results suggested that although substratum type has a great influence on invertebrate community structure in the canyons, depth is the principal factor. Coelacanths were associated with cave habitats within the steep rocky canyon walls. Habitat analyses allowed predictive classification tree models to be constructed. Depth, underlying percentage of rock, and percentage cover of gorgonians and sponges were the most important variables for determining coelacanth presence and absence. The overall correct classification rate for the model was estimated at 96.6%, correctly predicting coelacanth absence (> 99%) better than presence (60%). Because coelacanths have a unique spot pattern it was possible to quickly and accurately identify specific individuals photographically using computer-aided identification software. Without any manual intervention by an operator the software accurately identified between 56 and 92% of the individuals. Identification success increased to 100% if the operator could also manually select from other potential matching photographs. It was also shown that fish exhibiting a yaw angle not exceeding 60° could be accurately identified in photographs. Each of the sections presented in this thesis represent a possible step towards analysing coelacanth-related habitats, locating and then analysing new habitats. Steps include first locating a population and then performing a habitat analysis. Coelacanth location within the different habitats can then be determined allowing the development of predictive models to potentially identify possible locations of new populations. The final step is to identify individual fish within the population for assessing demographic parameters and population monitoring.
- Full Text:
- Date Issued: 2012
Vapour phase dehydrogenation of cyclohexane on microstructured reactors
- Authors: Mpuhlu, Batsho
- Date: 2012
- Subjects: Dehydrogenation , Cyclohexane
- Language: English
- Type: Thesis , Doctoral , DTech (Chemistry)
- Identifier: http://hdl.handle.net/10948/8661 , vital:26418
- Description: The work that is described in this thesis forms part of the research and development projects at InnoVenton: NMMU Institute of Chemical Technology in collaboration with Sasol Technologies. The broader view of the project was testing on the so-called “Small Production Platforms” (SPP’s). In particular the main aim of this study was to investigate the effect of micro-structuring on the heterogeneous catalysed, vapour-phase oxidative dehydrogenation of cyclohexane in the presence of air. Ground work studies were done to provide a proper comparison of the micro-structured reactor with a traditional fixed-bed reactor. These included evaluation of a proper vanadium pyrophosphate catalyst for the reaction, testing of reaction parameters for the oxidative dehydrogenation reaction on a fixed-bed reactor and lastly comparing the performance of the micro-structured reactor to that of the fixed-bed reactor Various vanadium pyrophosphate catalysts that were tested for activity included: bulk (VO)2P2O7, bulk (VO)2P2O7 promoted with Fe, (VO)2P2O7 supported on -Al2O3 and Fe promoted (VO)2P2O7 supported on -Al2O3. These catalysts showed significant differences in TOF, however it was not conclusive from the results whether these differences may be traced to increased activity for dehydrogenation for different catalysts since all reactions were run under conditions of oxygen deficiency. It is, however, clear that Fe promotion significantly increase activity, irrespective of the relative degrees of oxidative dehydrogenation and normal dehydrogenation. The Fe promoted catalyst was further tested for long term stability in-view of using it as the catalyst in the micro-structured reactor. These studies showed the catalyst to have a high degree of stability with minimal structural changes under the reaction conditions used. Various response surface models describing the variation in each of the cyclohexane conversion, cyclohexene selectivity, and benzene selectivity, respectively when changing reaction condition, were derived by means of multiple regression. To obtain some idea of the degree and nature of the normal dehydrogenation reaction, the amount of deficit oxygen was estimated from the measured results for cyclohexane conversion and cyclohexene and benzene selectivities. These estimated values were also modelled as described above. The regression models were used to interpret specific trends in the responses for the oxidative dehydrogenation of cyclohexane and account for the oxygen deficit in the system. The performance of a fixed bed tubular reactor (FBR) and micro-structured sandwich reactor (MSSR) were compared over an Fe promoted vanadium pyrophosphate. Reactor performance was evaluated by varying specific reaction conditions (temperature and space velocity). Subsequently the turn-over frequencies, conversion and selectivities from the two reactors were compared. The conversion achieved in the micro-structured reactor was observed to be significantly higher than that achieved in the fixed-bed reactor at all reaction parameters. This is despite the fact that the total amount of catalyst in the micro-structured reactor is approximately 5 times less than that used in the fixed bed reactor. In addition, the contact time (1/MHSV) in the micro-structured reactor is also significantly shorter than in the fixed-bed reactor.
- Full Text:
- Date Issued: 2012
- Authors: Mpuhlu, Batsho
- Date: 2012
- Subjects: Dehydrogenation , Cyclohexane
- Language: English
- Type: Thesis , Doctoral , DTech (Chemistry)
- Identifier: http://hdl.handle.net/10948/8661 , vital:26418
- Description: The work that is described in this thesis forms part of the research and development projects at InnoVenton: NMMU Institute of Chemical Technology in collaboration with Sasol Technologies. The broader view of the project was testing on the so-called “Small Production Platforms” (SPP’s). In particular the main aim of this study was to investigate the effect of micro-structuring on the heterogeneous catalysed, vapour-phase oxidative dehydrogenation of cyclohexane in the presence of air. Ground work studies were done to provide a proper comparison of the micro-structured reactor with a traditional fixed-bed reactor. These included evaluation of a proper vanadium pyrophosphate catalyst for the reaction, testing of reaction parameters for the oxidative dehydrogenation reaction on a fixed-bed reactor and lastly comparing the performance of the micro-structured reactor to that of the fixed-bed reactor Various vanadium pyrophosphate catalysts that were tested for activity included: bulk (VO)2P2O7, bulk (VO)2P2O7 promoted with Fe, (VO)2P2O7 supported on -Al2O3 and Fe promoted (VO)2P2O7 supported on -Al2O3. These catalysts showed significant differences in TOF, however it was not conclusive from the results whether these differences may be traced to increased activity for dehydrogenation for different catalysts since all reactions were run under conditions of oxygen deficiency. It is, however, clear that Fe promotion significantly increase activity, irrespective of the relative degrees of oxidative dehydrogenation and normal dehydrogenation. The Fe promoted catalyst was further tested for long term stability in-view of using it as the catalyst in the micro-structured reactor. These studies showed the catalyst to have a high degree of stability with minimal structural changes under the reaction conditions used. Various response surface models describing the variation in each of the cyclohexane conversion, cyclohexene selectivity, and benzene selectivity, respectively when changing reaction condition, were derived by means of multiple regression. To obtain some idea of the degree and nature of the normal dehydrogenation reaction, the amount of deficit oxygen was estimated from the measured results for cyclohexane conversion and cyclohexene and benzene selectivities. These estimated values were also modelled as described above. The regression models were used to interpret specific trends in the responses for the oxidative dehydrogenation of cyclohexane and account for the oxygen deficit in the system. The performance of a fixed bed tubular reactor (FBR) and micro-structured sandwich reactor (MSSR) were compared over an Fe promoted vanadium pyrophosphate. Reactor performance was evaluated by varying specific reaction conditions (temperature and space velocity). Subsequently the turn-over frequencies, conversion and selectivities from the two reactors were compared. The conversion achieved in the micro-structured reactor was observed to be significantly higher than that achieved in the fixed-bed reactor at all reaction parameters. This is despite the fact that the total amount of catalyst in the micro-structured reactor is approximately 5 times less than that used in the fixed bed reactor. In addition, the contact time (1/MHSV) in the micro-structured reactor is also significantly shorter than in the fixed-bed reactor.
- Full Text:
- Date Issued: 2012
Value delivered by private game reserves in South Africa : a comparison of visitors' and managers' perceptions
- Authors: Theron, Elizna
- Date: 2012
- Subjects: Tourism -- South Africa , Ecotourism -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9374 , http://hdl.handle.net/10948/d1019980
- Description: The uniqueness of the wildlife and the luxurious nature of South African private game reserves could be seen as a valuable niche in the South African tourism market and for this reason make South Africa a desired destination. Due to complex visitor needs and demands regarding price, service, social connection, authenticity, quality or image, value perceptions will differ in terms of visitors’ experiences. If managers do not understand these value requirements, differences might exist between consumers’ and service providers’ perceptions of value. To maintain visitor satisfaction, loyalty and intention for return to the reserves, managers should continue to provide valued offerings and improve their visitors’ wildlife experience. This research investigated visitors’ perceptions of the value delivered by private game reserves in South Africa and compared these with reserve managers’ perceptions of the value delivered. The results of this research study could contribute to a better understanding of perceived value, which in turn could enhance the success of the private game reserves. The literature contextualised the South African private game reserve as part of wildlife tourism, the wildlife tourism offering and the characteristics of wildlife visitors. An overview of customer value, customer value models showing their development over time, and the conceptual framework of the current study was provided. The resulting conceptual model was used to evaluate managers’ and visitors’ perceptions of Quality, Monetary price, Behavioural price, Reputation, Emotional response, Social value and Novelty value delivered by South African private game reserves. The empirical data was collected by means of a survey, using two structured self-administered electronic questionnaires administered to the managers of, and the visitors to, private game reserves. One hundred and sixty two visitors and 30 managers participated in the survey. By performing exploratory factor analysis it was found that the seven value factors were consistent with the value dimensions reported in the literature. These were labelled as Quality, Emotional response, Monetary price, Reputation, Novelty value, Social value and Behavioural price. Most of managers’ perceptions of value provided exceeded visitors’ perceptions of value received. Both managers and visitors rated value items related to Emotional response highly. Considerably more managers (17 percent) thought that the reserve experience can be associated with good service, opposed to only 4 percent of visitors who perceived the service to be good. On the other hand, a larger proportion of visitors (29%) than the managers (20 percent) perceived the reserve experience as relaxing. Managers rated eleven of the thirteen game reserve attributes more positively than what the visitors did. Of these attributes, accommodation services, protection of the natural environment, game drives and service delivery, showed significant differences. It is recommended that South African private game reserve managers: • conduct market research to get a better understanding of what delights visitors. Research should be conducted on a regular basis to ensure management stays current with visitors’ changing needs; • determine whether the prices charged reflect the quality of the physical offerings, service delivery and the time and effort visitors spent to obtain the offering; • use the adventurous activities offered at the reserves as part of their promotional campaigns to attract adventure tourists; • train service delivery staff and game drive guides to educate visitors on the history, culture and eco-friendly practices related to their reserve; • always deliver superior service to ensure memorable wildlife experiences, value for money and exceed visitors’ expectations; • continue using websites, social media and magazines to inform the target market about the reserve offerings; and • stay in regular contact with visitors through social media, newsletters, blogs, follow up emails/calls or face to face discussions at the reserve.
- Full Text:
- Date Issued: 2012
- Authors: Theron, Elizna
- Date: 2012
- Subjects: Tourism -- South Africa , Ecotourism -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9374 , http://hdl.handle.net/10948/d1019980
- Description: The uniqueness of the wildlife and the luxurious nature of South African private game reserves could be seen as a valuable niche in the South African tourism market and for this reason make South Africa a desired destination. Due to complex visitor needs and demands regarding price, service, social connection, authenticity, quality or image, value perceptions will differ in terms of visitors’ experiences. If managers do not understand these value requirements, differences might exist between consumers’ and service providers’ perceptions of value. To maintain visitor satisfaction, loyalty and intention for return to the reserves, managers should continue to provide valued offerings and improve their visitors’ wildlife experience. This research investigated visitors’ perceptions of the value delivered by private game reserves in South Africa and compared these with reserve managers’ perceptions of the value delivered. The results of this research study could contribute to a better understanding of perceived value, which in turn could enhance the success of the private game reserves. The literature contextualised the South African private game reserve as part of wildlife tourism, the wildlife tourism offering and the characteristics of wildlife visitors. An overview of customer value, customer value models showing their development over time, and the conceptual framework of the current study was provided. The resulting conceptual model was used to evaluate managers’ and visitors’ perceptions of Quality, Monetary price, Behavioural price, Reputation, Emotional response, Social value and Novelty value delivered by South African private game reserves. The empirical data was collected by means of a survey, using two structured self-administered electronic questionnaires administered to the managers of, and the visitors to, private game reserves. One hundred and sixty two visitors and 30 managers participated in the survey. By performing exploratory factor analysis it was found that the seven value factors were consistent with the value dimensions reported in the literature. These were labelled as Quality, Emotional response, Monetary price, Reputation, Novelty value, Social value and Behavioural price. Most of managers’ perceptions of value provided exceeded visitors’ perceptions of value received. Both managers and visitors rated value items related to Emotional response highly. Considerably more managers (17 percent) thought that the reserve experience can be associated with good service, opposed to only 4 percent of visitors who perceived the service to be good. On the other hand, a larger proportion of visitors (29%) than the managers (20 percent) perceived the reserve experience as relaxing. Managers rated eleven of the thirteen game reserve attributes more positively than what the visitors did. Of these attributes, accommodation services, protection of the natural environment, game drives and service delivery, showed significant differences. It is recommended that South African private game reserve managers: • conduct market research to get a better understanding of what delights visitors. Research should be conducted on a regular basis to ensure management stays current with visitors’ changing needs; • determine whether the prices charged reflect the quality of the physical offerings, service delivery and the time and effort visitors spent to obtain the offering; • use the adventurous activities offered at the reserves as part of their promotional campaigns to attract adventure tourists; • train service delivery staff and game drive guides to educate visitors on the history, culture and eco-friendly practices related to their reserve; • always deliver superior service to ensure memorable wildlife experiences, value for money and exceed visitors’ expectations; • continue using websites, social media and magazines to inform the target market about the reserve offerings; and • stay in regular contact with visitors through social media, newsletters, blogs, follow up emails/calls or face to face discussions at the reserve.
- Full Text:
- Date Issued: 2012
Using mobile information visualisation to support the analysis of telecommunication service ultilisation
- Authors: Twigg, Gianni Gurshwin
- Date: 2012
- Subjects: Telecommunication , Visualization , Technology -- Social aspects
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10497 , http://hdl.handle.net/10948/d1020831
- Description: Telecommunication service utilisation (TSU) focuses on how customers make use of telecommunication services and can provide valuable information for decision making for improved customer service delivery. When a telecommunication service provider consults with customers, large amounts of static documentation on TSU data are compiled. Compiling this documentation for in-field investigation is manually intensive and the documentation does not effectively support decision making. Existing systems for visualising TSU data do not efficiently support in-field investigation of TSU and lack dynamic interaction. This highlights the need to investigate a solution to better support in-field investigation of TSU. This research followed a Design Science Research methodology to develop and evaluate a solution to solve the problem identified. The use of tablet devices for in-field investigation of TSU was identified as a suitable solution. Mobile information visualisation (MIV) techniques were investigated to determine appropriate display and interaction techniques for the visualisation of TSU data on a tablet device. An existing visualisation framework for TSU was identified and extended to incorporate touch-based interactions. Three service usage views were identified for visualising TSU, namely a Trend, Network and Detail Usage View. A Dashboard View was also identified to provide a quick reference view of the different views. A prototype called MobiTel was developed on a tablet device. MobiTel incorporated the identified information visualisation techniques. MobiTel was evaluated using an expert review and a user study to determine its usability and usefulness. The results indicated that MobiTel was perceived as being useful for in-field investigation and that the participants perceived the prototype to be easy to use and learn. The user study also indicated that the participants were satisfied with MobiTel. This research has determined that MIV techniques can be used for in-field investigation of TSU. Design recommendations were devised for designing an interactive mobile prototype for visualising service usage information. Future work will involve using map-based visualisation for visualising TSU data on different customer sites.
- Full Text:
- Date Issued: 2012
- Authors: Twigg, Gianni Gurshwin
- Date: 2012
- Subjects: Telecommunication , Visualization , Technology -- Social aspects
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10497 , http://hdl.handle.net/10948/d1020831
- Description: Telecommunication service utilisation (TSU) focuses on how customers make use of telecommunication services and can provide valuable information for decision making for improved customer service delivery. When a telecommunication service provider consults with customers, large amounts of static documentation on TSU data are compiled. Compiling this documentation for in-field investigation is manually intensive and the documentation does not effectively support decision making. Existing systems for visualising TSU data do not efficiently support in-field investigation of TSU and lack dynamic interaction. This highlights the need to investigate a solution to better support in-field investigation of TSU. This research followed a Design Science Research methodology to develop and evaluate a solution to solve the problem identified. The use of tablet devices for in-field investigation of TSU was identified as a suitable solution. Mobile information visualisation (MIV) techniques were investigated to determine appropriate display and interaction techniques for the visualisation of TSU data on a tablet device. An existing visualisation framework for TSU was identified and extended to incorporate touch-based interactions. Three service usage views were identified for visualising TSU, namely a Trend, Network and Detail Usage View. A Dashboard View was also identified to provide a quick reference view of the different views. A prototype called MobiTel was developed on a tablet device. MobiTel incorporated the identified information visualisation techniques. MobiTel was evaluated using an expert review and a user study to determine its usability and usefulness. The results indicated that MobiTel was perceived as being useful for in-field investigation and that the participants perceived the prototype to be easy to use and learn. The user study also indicated that the participants were satisfied with MobiTel. This research has determined that MIV techniques can be used for in-field investigation of TSU. Design recommendations were devised for designing an interactive mobile prototype for visualising service usage information. Future work will involve using map-based visualisation for visualising TSU data on different customer sites.
- Full Text:
- Date Issued: 2012
Using language as a resource: strategies to teach mathematics in multilingual classes
- Authors: Whale, Susan Gaye
- Date: 2012
- Subjects: Mathematics -- Study and teaching (Elementary) -- South Africa , Code switching (Linguistics) -- South Africa , Education, Bilingual -- South Africa -- Eastern Cape , Language and education -- South Africa -- Eastern Cape , Blacks -- Education -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9469 , http://hdl.handle.net/10948/1669 , Mathematics -- Study and teaching (Elementary) -- South Africa , Code switching (Linguistics) -- South Africa , Education, Bilingual -- South Africa -- Eastern Cape , Language and education -- South Africa -- Eastern Cape , Blacks -- Education -- South Africa -- Eastern Cape
- Description: South Africa is a complex multilingual country. In the majority of schools in the Eastern Cape, a province in South Africa, the teachers and learners share the same home language, isiXhosa, but teach and learn mathematics in English. The purpose of this study was to encourage teachers to use the home language as a resource to teach mathematics in multilingual classes. The study follows a mixed method design, using both qualitative and quantitative data. Qualitative data were collected from a survey and poetry, which teachers crafted, in which they highlighted their perceptions about language in their lives. They also reflected on their practices and submitted pieces of contemplative writing. Quantitative data were collected from participating teachers who administered a pre-test to their learners as well as a post- test approximately nine months later after conducting an intervention. The results showed that where strategies, such as the implementation of exploratory talk and code switching which used language as a resource, had been introduced mathematical reasoning improved and classroom climate became more positive. The learners’ lack of confidence in being able to express their reasoning in English was prevalent throughout the reflective writing. By enabling learners to use isiXhosa in discussions the teachers felt that the learners gained in both confidence and mathematical understanding. This study has demonstrated that using the learners’ and teachers’ home language unlocks doors to communication and spotlights mathematical reasoning, but there is still an urgency to encourage learners to become fluent in Mathematical English. It is important to note that a positive classroom climate is essential for learners to build confidence and to encourage them to attempt to formulate sentences in English - to start on the journey from informal to formal usage of language as advocated by Setati and Adler (2001:250). My main conclusion is that an intervention that develops exploratory talk by using language as a resource can improve learners’ mathematical reasoning. I wish to emphasise that I am not advocating teaching mathematics in isiXhosa only, but the research has shown the advantages of using the home language as a resource together with English in Eastern Cape multilingual mathematics classes. Learners need to be able to express themselves in English, written and spoken, in order to achieve mathematically. This study therefore shows that teachers can gauge their learners’ improvement in mathematical reasoning after an intervention that develops exploratory talk in class by using the home language as a resource.
- Full Text:
- Date Issued: 2012
- Authors: Whale, Susan Gaye
- Date: 2012
- Subjects: Mathematics -- Study and teaching (Elementary) -- South Africa , Code switching (Linguistics) -- South Africa , Education, Bilingual -- South Africa -- Eastern Cape , Language and education -- South Africa -- Eastern Cape , Blacks -- Education -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9469 , http://hdl.handle.net/10948/1669 , Mathematics -- Study and teaching (Elementary) -- South Africa , Code switching (Linguistics) -- South Africa , Education, Bilingual -- South Africa -- Eastern Cape , Language and education -- South Africa -- Eastern Cape , Blacks -- Education -- South Africa -- Eastern Cape
- Description: South Africa is a complex multilingual country. In the majority of schools in the Eastern Cape, a province in South Africa, the teachers and learners share the same home language, isiXhosa, but teach and learn mathematics in English. The purpose of this study was to encourage teachers to use the home language as a resource to teach mathematics in multilingual classes. The study follows a mixed method design, using both qualitative and quantitative data. Qualitative data were collected from a survey and poetry, which teachers crafted, in which they highlighted their perceptions about language in their lives. They also reflected on their practices and submitted pieces of contemplative writing. Quantitative data were collected from participating teachers who administered a pre-test to their learners as well as a post- test approximately nine months later after conducting an intervention. The results showed that where strategies, such as the implementation of exploratory talk and code switching which used language as a resource, had been introduced mathematical reasoning improved and classroom climate became more positive. The learners’ lack of confidence in being able to express their reasoning in English was prevalent throughout the reflective writing. By enabling learners to use isiXhosa in discussions the teachers felt that the learners gained in both confidence and mathematical understanding. This study has demonstrated that using the learners’ and teachers’ home language unlocks doors to communication and spotlights mathematical reasoning, but there is still an urgency to encourage learners to become fluent in Mathematical English. It is important to note that a positive classroom climate is essential for learners to build confidence and to encourage them to attempt to formulate sentences in English - to start on the journey from informal to formal usage of language as advocated by Setati and Adler (2001:250). My main conclusion is that an intervention that develops exploratory talk by using language as a resource can improve learners’ mathematical reasoning. I wish to emphasise that I am not advocating teaching mathematics in isiXhosa only, but the research has shown the advantages of using the home language as a resource together with English in Eastern Cape multilingual mathematics classes. Learners need to be able to express themselves in English, written and spoken, in order to achieve mathematically. This study therefore shows that teachers can gauge their learners’ improvement in mathematical reasoning after an intervention that develops exploratory talk in class by using the home language as a resource.
- Full Text:
- Date Issued: 2012
Using co-located radars and instruments to analyse ionespheric events over South Africa
- Authors: Athieno, Racheal
- Date: 2012
- Subjects: Ionosphere -- Research -- South Africa , Space environment -- Research -- South Africa , Meteorology -- Research -- South Africa , Ionosondes -- Research -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5493 , http://hdl.handle.net/10962/d1005279 , Ionosphere -- Research -- South Africa , Space environment -- Research -- South Africa , Meteorology -- Research -- South Africa , Ionosondes -- Research -- South Africa
- Description: Space weather and its effect on technological systems are important for scientific research. Developing an understanding of the behaviour, sources and effects of ionospheric events form a basis for improving space weather prediction. This thesis attempts to use co-located radars and instruments for the analysis of ionospheric events over South Africa. The HF Doppler radar, ionosonde, Global Positioning System (GPS) and GPS ionospheric scintillation monitor (GISTM) receivers are co-located in Hermanus (34.4°S, 19.2°E), one of the observatories for the space science directorate of the South African National Space Agency (SANSA). Data was obtained from these radars and instruments and analysed for ionospheric events. Only the Hermanus station was selected for this analysis, because it is currently the only South African station that hosts all the mentioned radars and instruments. Ionospheric events identified include wave-like structures, Doppler spread, sudden frequency deviations and ionospheric oscillations associated with geomagnetic pulsations. For the purpose of this work, ionospheric events are defined as any unusual structures observed on the received signal and inferred from observations made by the HF Doppler radar. They were identified by visual inspection of the Doppler shift spectrograms. The magnitude and nature of the events vary, depending on their source and were observed by all, some or one instrument. This study suggests that the inclusion of a wider data coverage and more stations in South Africa merit consideration, especially since plans are underway to host a co-located radar network similar to that in Hermanus at at least three additional observatory sites in South Africa. This study lays a foundation for multi-station co-located radar and instrument observation and analysis of ionospheric events which should enhance the accuracy of space weather and HF communication prediction.
- Full Text:
- Date Issued: 2012
- Authors: Athieno, Racheal
- Date: 2012
- Subjects: Ionosphere -- Research -- South Africa , Space environment -- Research -- South Africa , Meteorology -- Research -- South Africa , Ionosondes -- Research -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5493 , http://hdl.handle.net/10962/d1005279 , Ionosphere -- Research -- South Africa , Space environment -- Research -- South Africa , Meteorology -- Research -- South Africa , Ionosondes -- Research -- South Africa
- Description: Space weather and its effect on technological systems are important for scientific research. Developing an understanding of the behaviour, sources and effects of ionospheric events form a basis for improving space weather prediction. This thesis attempts to use co-located radars and instruments for the analysis of ionospheric events over South Africa. The HF Doppler radar, ionosonde, Global Positioning System (GPS) and GPS ionospheric scintillation monitor (GISTM) receivers are co-located in Hermanus (34.4°S, 19.2°E), one of the observatories for the space science directorate of the South African National Space Agency (SANSA). Data was obtained from these radars and instruments and analysed for ionospheric events. Only the Hermanus station was selected for this analysis, because it is currently the only South African station that hosts all the mentioned radars and instruments. Ionospheric events identified include wave-like structures, Doppler spread, sudden frequency deviations and ionospheric oscillations associated with geomagnetic pulsations. For the purpose of this work, ionospheric events are defined as any unusual structures observed on the received signal and inferred from observations made by the HF Doppler radar. They were identified by visual inspection of the Doppler shift spectrograms. The magnitude and nature of the events vary, depending on their source and were observed by all, some or one instrument. This study suggests that the inclusion of a wider data coverage and more stations in South Africa merit consideration, especially since plans are underway to host a co-located radar network similar to that in Hermanus at at least three additional observatory sites in South Africa. This study lays a foundation for multi-station co-located radar and instrument observation and analysis of ionospheric events which should enhance the accuracy of space weather and HF communication prediction.
- Full Text:
- Date Issued: 2012
Using an intelligent self-service solution to support telecommunication service provisioning
- Authors: Barlow, Sherwin Riaan
- Date: 2012
- Subjects: Telecommunication systems -- Management , Electronic commerce -- Computer programs , Web applications
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10484 , http://hdl.handle.net/10948/d1013417
- Description: The increasing competition between telecommunication service providers (TSPs) and the large amounts of human resource costs incurred to provision telecommunication services to small, medium and micro enterprises (SMMEs), highlight the need for effective self-service provisioning methods to reduce costs. Existing service provisioning methods do not effectively support SMMEs in the service provisioning process. The current methods used are manual and Web-based. The manual service provisioning method is labour and time-intensive. TSPs are being forced to cut human resource costs as the profit margins for provisioning services are narrow due to competition. The current web-based systems do not allow SMMEs to effectively purchase services as they provide long textual lists to consult and limited information about services. The objective of this research was to develop an intelligent web-based self-service system to support SMMEs in telecommunication service provisioning, using a Design Science Research methodology. A constraint-based, knowledge-based recommender system was selected as the most appropriate intelligent system to support telecommunication service provisioning. A prototype called SelPro was developed as a solution to address the shortcomings of the current ineffective service provisioning methods available for SMMEs. SelPro incorporates an interactive wizard-style user interface with dynamic recommendations to support novice users as well as an expert interface which provides less user support. An expert review and a user study were conducted to determine if SelPro was usable, useful and effective. SelPro was perceived as being usable for SMMEs wishing to purchase telecommunication services. Expert participants were satisfied with the usability of SelPro and perceived it as being useful, easy to use and easy to learn. SelPro was considered effective because of the high task success ratings provided by the participants using the two interfaces. The research determined that intelligent web-based self-service provisioning can be used to effectively support SMMEs in telecommunication service provisioning. General design recommendations for similar systems were proposed and future work will involve using intelligent systems to support large enterprises in telecommunication service provisioning.
- Full Text:
- Date Issued: 2012
- Authors: Barlow, Sherwin Riaan
- Date: 2012
- Subjects: Telecommunication systems -- Management , Electronic commerce -- Computer programs , Web applications
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10484 , http://hdl.handle.net/10948/d1013417
- Description: The increasing competition between telecommunication service providers (TSPs) and the large amounts of human resource costs incurred to provision telecommunication services to small, medium and micro enterprises (SMMEs), highlight the need for effective self-service provisioning methods to reduce costs. Existing service provisioning methods do not effectively support SMMEs in the service provisioning process. The current methods used are manual and Web-based. The manual service provisioning method is labour and time-intensive. TSPs are being forced to cut human resource costs as the profit margins for provisioning services are narrow due to competition. The current web-based systems do not allow SMMEs to effectively purchase services as they provide long textual lists to consult and limited information about services. The objective of this research was to develop an intelligent web-based self-service system to support SMMEs in telecommunication service provisioning, using a Design Science Research methodology. A constraint-based, knowledge-based recommender system was selected as the most appropriate intelligent system to support telecommunication service provisioning. A prototype called SelPro was developed as a solution to address the shortcomings of the current ineffective service provisioning methods available for SMMEs. SelPro incorporates an interactive wizard-style user interface with dynamic recommendations to support novice users as well as an expert interface which provides less user support. An expert review and a user study were conducted to determine if SelPro was usable, useful and effective. SelPro was perceived as being usable for SMMEs wishing to purchase telecommunication services. Expert participants were satisfied with the usability of SelPro and perceived it as being useful, easy to use and easy to learn. SelPro was considered effective because of the high task success ratings provided by the participants using the two interfaces. The research determined that intelligent web-based self-service provisioning can be used to effectively support SMMEs in telecommunication service provisioning. General design recommendations for similar systems were proposed and future work will involve using intelligent systems to support large enterprises in telecommunication service provisioning.
- Full Text:
- Date Issued: 2012
User experience metrics for Dr Math
- Authors: Ngaye, Zonke
- Date: 2012
- Subjects: Mathematics -- Data processing , Mathematical models , Mathematics -- Study and teaching , Numerical analysis
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9799 , http://hdl.handle.net/10948/d1012036 , Mathematics -- Data processing , Mathematical models , Mathematics -- Study and teaching , Numerical analysis
- Description: The purpose of this research study is to propose guidelines for providing a positive user experience for pupils using Dr Math®. User experience was found to have a positive impact on the acceptance and adoption of a product. Thus the proposed guidelines contribute in maximizing the adoption and acceptance of Dr Math® among pupils. This study begins with an introductory chapter that describes the problem that forms the basis for this research. The chapter defines the objectives that this study is intended to achieve in order to accomplish its ultimate goal. The methodology followed to conduct this research study as well as its scope are also defined here. The results from a preliminary survey revealed that despite its potential accessibility, Dr Math® has a low adoption rate. However, when compared to other mobile learning (m-learning) applications for mathematics learning, Dr Math® is more popular. Thus Dr Math® was selected as a case for study. Chapter 2 of this study provides a detailed description of Dr Math® as a local mobile application for mathematics learning. It was found that the affordability and accessibility of Dr Math® did not necessarily imply a high adoption rate. There are various possible barriers to its low adoption. User experience (UX), which is the focus of this study, is one of them. Thus, a subsequent chapter deals with UX. Chapter 3 discusses UX, its scope, components and definition and places particular emphasis on its significance in the success of any product. The chapter also highlights the characteristics of a positive UX and the importance of designing for this outcome. In Chapter 4, a discussion and justification of the methodology used to conduct this research is discussed. This study primarily employs a qualitative inductive approach within an interpretivism paradigm. An exploratory single case study was used to obtain an in-depth analysis of the case. Data was collected using Dr Math® log files as a documentary source. Gathered data was then analysed and organized into themes and categories using qualitative content analysis as outlined in Chapter 5. Also the findings obtained from the results, which are mainly the factors that were found to have an impact on the user interaction with Dr Math®, are presented here. The identified factors served as a basis from which the guidelines presented in Chapter 6 were developed. Chapter 7 presents the conclusions and recommendations of the research. From both theoretical and empirical work, it was concluded that Dr Math® has the potential to improve mathematics learning in South Africa. Its adoption rate, however, is not satisfying: hence, the investigation of the factors impacting on the user interaction with Dr Math®, from which the proposed guidelines are based.
- Full Text:
- Date Issued: 2012
- Authors: Ngaye, Zonke
- Date: 2012
- Subjects: Mathematics -- Data processing , Mathematical models , Mathematics -- Study and teaching , Numerical analysis
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9799 , http://hdl.handle.net/10948/d1012036 , Mathematics -- Data processing , Mathematical models , Mathematics -- Study and teaching , Numerical analysis
- Description: The purpose of this research study is to propose guidelines for providing a positive user experience for pupils using Dr Math®. User experience was found to have a positive impact on the acceptance and adoption of a product. Thus the proposed guidelines contribute in maximizing the adoption and acceptance of Dr Math® among pupils. This study begins with an introductory chapter that describes the problem that forms the basis for this research. The chapter defines the objectives that this study is intended to achieve in order to accomplish its ultimate goal. The methodology followed to conduct this research study as well as its scope are also defined here. The results from a preliminary survey revealed that despite its potential accessibility, Dr Math® has a low adoption rate. However, when compared to other mobile learning (m-learning) applications for mathematics learning, Dr Math® is more popular. Thus Dr Math® was selected as a case for study. Chapter 2 of this study provides a detailed description of Dr Math® as a local mobile application for mathematics learning. It was found that the affordability and accessibility of Dr Math® did not necessarily imply a high adoption rate. There are various possible barriers to its low adoption. User experience (UX), which is the focus of this study, is one of them. Thus, a subsequent chapter deals with UX. Chapter 3 discusses UX, its scope, components and definition and places particular emphasis on its significance in the success of any product. The chapter also highlights the characteristics of a positive UX and the importance of designing for this outcome. In Chapter 4, a discussion and justification of the methodology used to conduct this research is discussed. This study primarily employs a qualitative inductive approach within an interpretivism paradigm. An exploratory single case study was used to obtain an in-depth analysis of the case. Data was collected using Dr Math® log files as a documentary source. Gathered data was then analysed and organized into themes and categories using qualitative content analysis as outlined in Chapter 5. Also the findings obtained from the results, which are mainly the factors that were found to have an impact on the user interaction with Dr Math®, are presented here. The identified factors served as a basis from which the guidelines presented in Chapter 6 were developed. Chapter 7 presents the conclusions and recommendations of the research. From both theoretical and empirical work, it was concluded that Dr Math® has the potential to improve mathematics learning in South Africa. Its adoption rate, however, is not satisfying: hence, the investigation of the factors impacting on the user interaction with Dr Math®, from which the proposed guidelines are based.
- Full Text:
- Date Issued: 2012
Urban poverty and poverty alleviation in the Nelson Mandela Metro
- Authors: Mafuya, Mzukisi Theophilus
- Date: 2012
- Subjects: Poverty -- South Africa -- Nelson Mandela Bay Municipality -- Prevention , Nelson Mandela Bay Municipality (South Africa) -- Economic conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9130 , http://hdl.handle.net/10948/d1018637
- Description: Poverty is generally acknowledged as one of the most serious problems facing post-apartheid South Africa. The biggest challenge facing South Africa localities today is their ability to cope with alarmingly high levels of unemployment that are severely retarding both economic growth and poverty. The growth of the poverty in South Africa increases the spread of poverty in communities in which the cycle of their poverty can be passed onto the next generation if not well addressed. South Africa is characterised by inequitable growth and development, a high degree of poverty, increasing demands and limited resources and challenge of integration. In order to fight poverty the South African government has introduced mechanisms and plans to alleviate poverty and to monitor and evaluate the impact of their policies and programmes on reduction of poverty, the government has prioritized poverty alleviation in its development agenda. To fight poverty the South African government introduced a well planned and coordinated programme known an Integrated and Development programme (IDP) with its main purpose that is to enhance service delivery and fight poverty through an integrated and aligned approach between different role players and stakeholders. The IDP seeks to promote integration by balancing the social, economic and ecological pillars of sustainability without compromising the institutional capacity required in the implementation.
- Full Text:
- Date Issued: 2012
- Authors: Mafuya, Mzukisi Theophilus
- Date: 2012
- Subjects: Poverty -- South Africa -- Nelson Mandela Bay Municipality -- Prevention , Nelson Mandela Bay Municipality (South Africa) -- Economic conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9130 , http://hdl.handle.net/10948/d1018637
- Description: Poverty is generally acknowledged as one of the most serious problems facing post-apartheid South Africa. The biggest challenge facing South Africa localities today is their ability to cope with alarmingly high levels of unemployment that are severely retarding both economic growth and poverty. The growth of the poverty in South Africa increases the spread of poverty in communities in which the cycle of their poverty can be passed onto the next generation if not well addressed. South Africa is characterised by inequitable growth and development, a high degree of poverty, increasing demands and limited resources and challenge of integration. In order to fight poverty the South African government has introduced mechanisms and plans to alleviate poverty and to monitor and evaluate the impact of their policies and programmes on reduction of poverty, the government has prioritized poverty alleviation in its development agenda. To fight poverty the South African government introduced a well planned and coordinated programme known an Integrated and Development programme (IDP) with its main purpose that is to enhance service delivery and fight poverty through an integrated and aligned approach between different role players and stakeholders. The IDP seeks to promote integration by balancing the social, economic and ecological pillars of sustainability without compromising the institutional capacity required in the implementation.
- Full Text:
- Date Issued: 2012
Urban poverty and poverty alleviation in the Nelson Mandela Metro
- Authors: Mlinganiso, Mzwandile A
- Date: 2012
- Subjects: Sustainable development -- South Africa -- Port Elizabeth , Poverty -- South Africa -- Port Elizabeth , Economic assistance, Domestic -- South Africa -- Port Elizabeth , Community development -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9148 , http://hdl.handle.net/10948/d1018902
- Description: South Africa as integral part of the global village has been affected by the global economic meltdown that affected some parts of the globe. The Government has her other three monsters to deal with which exacerbated after the meltdown, inter alia; poverty, unemployment and inequality. The heat is felt most on unemployment and poverty. The masses on the ground are the greatest victims. Missionvale just like other small areas is not immune to the scourge caused by the crisis alluded to before. The ripple effect of the crisis is felt in classroom, when manifestations emerge in different forms, leaving victims by the way side. Poverty is rife in the Nelson Mandela Bay Municipality as a consequence to that the title of the study on poverty alleviation came into being. South Africa as a country rich in natural and human resource experiences a high rate of unemployment and harbours the majority of people living in squalor and chronic poverty. Methodology approach to gather information for this study is through relevant literature consisting of books, legislation and interviews with knowledgeable individuals in the field. The study points out the major role the municipality in collaboration with other stakeholder, inter alia; social development, and other sister departments and NGO‟s can play towards poverty alleviation in Missionvale.
- Full Text:
- Date Issued: 2012
- Authors: Mlinganiso, Mzwandile A
- Date: 2012
- Subjects: Sustainable development -- South Africa -- Port Elizabeth , Poverty -- South Africa -- Port Elizabeth , Economic assistance, Domestic -- South Africa -- Port Elizabeth , Community development -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9148 , http://hdl.handle.net/10948/d1018902
- Description: South Africa as integral part of the global village has been affected by the global economic meltdown that affected some parts of the globe. The Government has her other three monsters to deal with which exacerbated after the meltdown, inter alia; poverty, unemployment and inequality. The heat is felt most on unemployment and poverty. The masses on the ground are the greatest victims. Missionvale just like other small areas is not immune to the scourge caused by the crisis alluded to before. The ripple effect of the crisis is felt in classroom, when manifestations emerge in different forms, leaving victims by the way side. Poverty is rife in the Nelson Mandela Bay Municipality as a consequence to that the title of the study on poverty alleviation came into being. South Africa as a country rich in natural and human resource experiences a high rate of unemployment and harbours the majority of people living in squalor and chronic poverty. Methodology approach to gather information for this study is through relevant literature consisting of books, legislation and interviews with knowledgeable individuals in the field. The study points out the major role the municipality in collaboration with other stakeholder, inter alia; social development, and other sister departments and NGO‟s can play towards poverty alleviation in Missionvale.
- Full Text:
- Date Issued: 2012
Uphononongo lokubunjwa kobume bengqondo yabalinganiswa kwiincwadi ezikhethiweyo zesiXhosa
- Authors: Netjies, Nomalanga Primrose
- Date: 2012
- Subjects: Xhosa literature -- History and criticism , South African literature
- Language: Xhosa
- Type: Thesis , Masters , MA
- Identifier: vital:8474 , http://hdl.handle.net/10948/d1011847 , Xhosa literature -- History and criticism , South African literature
- Description: Olu phando luza kugxila kuphononongo lobume bengqondo ephazamisekileyo, lujonge izimo zabalinganiswa nendlela abacinga nabenza ngayo izinto. Kuza kube kugocwagocwa ubume bengqondo yabalinganiswa abakwezi ncwadi zintathu zilandelayo: Incwadi kaTamsanqa ethi, „Buzani Kubawo,‟ ekaJordan ethi, „Ingqumbo Yeminyanya‟ neka Jongilanga ethi, „Ukuqhawuka Kwembeleko.‟Apha kuza kukhokela intshayelelo equlathe izinto ezininzi eziquka amagama amatsha aza kusetyenziswa, indlela oza kuma ngayo umsebenzi kunye nembali ngababhali. Oku kulandelwa yingcingane eza kuthi ibe sisiseko solu phando, ingcingane yobume bengqondo, ingcingane yemeko engaqhelekanga kunye nezayamileyo; ingcingane yokuqonda kunye nengcingane yenkcubeko nentlalo. Kuza kuthi kutyhilwe iimeko abantu abaphila phantsi kwazo emakhaya nasentlalweni ngokubanzi. Iingcali zophando zizamile ukuza neendlela ezizizo zokwazi unobangela wokuphazamiseka kwengqondo ukuze zikwazi ukuza nonyango oluchanekileyo. Ekugqibeleni kuza kuthi kushwankathelwe wonke lo msebenzi, kuvezwe namacebo anokunceda abafundi nababhali kuncwadi. Kuza kucetyiswa ababhali ukuze babethelele ingcamango yokuba kubekho uncedo okanye unyango kubalinganiswa abanesimo sengqondo esiphazamisekileyo, xa kuphononongwa le ngcingane yesimo sengqondo.
- Full Text:
- Date Issued: 2012
- Authors: Netjies, Nomalanga Primrose
- Date: 2012
- Subjects: Xhosa literature -- History and criticism , South African literature
- Language: Xhosa
- Type: Thesis , Masters , MA
- Identifier: vital:8474 , http://hdl.handle.net/10948/d1011847 , Xhosa literature -- History and criticism , South African literature
- Description: Olu phando luza kugxila kuphononongo lobume bengqondo ephazamisekileyo, lujonge izimo zabalinganiswa nendlela abacinga nabenza ngayo izinto. Kuza kube kugocwagocwa ubume bengqondo yabalinganiswa abakwezi ncwadi zintathu zilandelayo: Incwadi kaTamsanqa ethi, „Buzani Kubawo,‟ ekaJordan ethi, „Ingqumbo Yeminyanya‟ neka Jongilanga ethi, „Ukuqhawuka Kwembeleko.‟Apha kuza kukhokela intshayelelo equlathe izinto ezininzi eziquka amagama amatsha aza kusetyenziswa, indlela oza kuma ngayo umsebenzi kunye nembali ngababhali. Oku kulandelwa yingcingane eza kuthi ibe sisiseko solu phando, ingcingane yobume bengqondo, ingcingane yemeko engaqhelekanga kunye nezayamileyo; ingcingane yokuqonda kunye nengcingane yenkcubeko nentlalo. Kuza kuthi kutyhilwe iimeko abantu abaphila phantsi kwazo emakhaya nasentlalweni ngokubanzi. Iingcali zophando zizamile ukuza neendlela ezizizo zokwazi unobangela wokuphazamiseka kwengqondo ukuze zikwazi ukuza nonyango oluchanekileyo. Ekugqibeleni kuza kuthi kushwankathelwe wonke lo msebenzi, kuvezwe namacebo anokunceda abafundi nababhali kuncwadi. Kuza kucetyiswa ababhali ukuze babethelele ingcamango yokuba kubekho uncedo okanye unyango kubalinganiswa abanesimo sengqondo esiphazamisekileyo, xa kuphononongwa le ngcingane yesimo sengqondo.
- Full Text:
- Date Issued: 2012
Unquenched fluorescence lifetime for β-phenylthio substituted zinc phthalocyanine upon conjugation to gold nanoparticles
- Forteath, Shaun, Antunes, Edith M, Chidawanyika, Wadzanai J U, Nyokong, Tebello
- Authors: Forteath, Shaun , Antunes, Edith M , Chidawanyika, Wadzanai J U , Nyokong, Tebello
- Date: 2012
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/245774 , vital:51404 , xlink:href="https://doi.org/10.1016/j.poly.2011.12.015"
- Description: Photoinduced processes in phthalocyanine-functionalized gold nanoparticles have been investigated by spectroscopic measurements. The zinc phthalocyanine used contained four phenylthio peripheral substituents (ZnPc(SPh)4). The conjugates formed are represented as ZnPc(SPh)4–AuNP. The absorption spectrum of the ZnPc(SPh)4–AuNP shows a broadening of the phthalocyanine Q-band absorption, probably due to a tight packing of the phthalocyanines on the gold nanoparticle surface. For the attached phthalocyanines, the two fluorescence lifetimes obtained by time-correlated single photon counting (TCSPC) were determined to be both longer and shorter than that of the free Pc. The fluorescence lifetimes were resolved using time resolved fluorescence spectroscopy (TRES).
- Full Text:
- Date Issued: 2012
- Authors: Forteath, Shaun , Antunes, Edith M , Chidawanyika, Wadzanai J U , Nyokong, Tebello
- Date: 2012
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/245774 , vital:51404 , xlink:href="https://doi.org/10.1016/j.poly.2011.12.015"
- Description: Photoinduced processes in phthalocyanine-functionalized gold nanoparticles have been investigated by spectroscopic measurements. The zinc phthalocyanine used contained four phenylthio peripheral substituents (ZnPc(SPh)4). The conjugates formed are represented as ZnPc(SPh)4–AuNP. The absorption spectrum of the ZnPc(SPh)4–AuNP shows a broadening of the phthalocyanine Q-band absorption, probably due to a tight packing of the phthalocyanines on the gold nanoparticle surface. For the attached phthalocyanines, the two fluorescence lifetimes obtained by time-correlated single photon counting (TCSPC) were determined to be both longer and shorter than that of the free Pc. The fluorescence lifetimes were resolved using time resolved fluorescence spectroscopy (TRES).
- Full Text:
- Date Issued: 2012
Unfair discrimination and affirmative action in the South African Police Service
- Authors: Taylor, Nicola
- Date: 2012
- Subjects: Discrimination in employment -- South Africa , Affirmative action programs -- South Africa , South African Police
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10948/8693 , vital:26421
- Description: Affirmative action is the purposeful, planned placement and development of competent or potentially competent persons in or to positions from which they were debarred in the past. Affirmative action is an attempt to redress past population, on a local and national level. One of the requirements of affirmative action in South Africa is that it must target persons who have been discriminted by unfair discrimination in the past. the Emplyment Equity Act was brought into the South African government to bring equality to all. Unfair discrimination is a branch of affirmative action in which individuals are discriminated against not only on race, but includes colour, sex, religion, age, disability, language and the likes. Section 9 of the Constitution of South Africa prohibits unfair discrimination against any person on any of the listed grounds. Section 2 of the Employment Equity Act is in place to aim to achieve equity within the workplace by promoting equal opportunity and fair treatment as well as eliminating unfair discrimination. Section 6, like the Constitution, lists grounds against which an individual may not be discriminated. Historically, the South African Police Services were a deeply-routed racist organization, where only white males were afforded better opportunities. This however changed after South Africa became a democratic country and with the introduction of the SAPS Act. Transformation within the SAPS took place after South Africa moved towards a democratic society.
- Full Text: false
- Date Issued: 2012
- Authors: Taylor, Nicola
- Date: 2012
- Subjects: Discrimination in employment -- South Africa , Affirmative action programs -- South Africa , South African Police
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10948/8693 , vital:26421
- Description: Affirmative action is the purposeful, planned placement and development of competent or potentially competent persons in or to positions from which they were debarred in the past. Affirmative action is an attempt to redress past population, on a local and national level. One of the requirements of affirmative action in South Africa is that it must target persons who have been discriminted by unfair discrimination in the past. the Emplyment Equity Act was brought into the South African government to bring equality to all. Unfair discrimination is a branch of affirmative action in which individuals are discriminated against not only on race, but includes colour, sex, religion, age, disability, language and the likes. Section 9 of the Constitution of South Africa prohibits unfair discrimination against any person on any of the listed grounds. Section 2 of the Employment Equity Act is in place to aim to achieve equity within the workplace by promoting equal opportunity and fair treatment as well as eliminating unfair discrimination. Section 6, like the Constitution, lists grounds against which an individual may not be discriminated. Historically, the South African Police Services were a deeply-routed racist organization, where only white males were afforded better opportunities. This however changed after South Africa became a democratic country and with the introduction of the SAPS Act. Transformation within the SAPS took place after South Africa moved towards a democratic society.
- Full Text: false
- Date Issued: 2012
Understanding the biomolecular interactions involved in dimerisation of the Saccharomyces cerevisiae eukaryotic translation initiation factor 5A
- Authors: Charlton, Jane Laura
- Date: 2012
- Subjects: Proteins -- Synthesis -- Research , Saccharomyces cerevisiae -- Research , Dimers , Dimers -- Research , Eukaryotic cells -- Research , Yeast -- Research
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4057 , http://hdl.handle.net/10962/d1004118 , Proteins -- Synthesis -- Research , Saccharomyces cerevisiae -- Research , Dimers , Dimers -- Research , Eukaryotic cells -- Research , Yeast -- Research
- Description: Translation initiation factor 5A (IF5A) is an essential, highly conserved protein found within all eukaryotic (eIF5A) and archaeal (aIF5A) cells. The IF5A protein is unique in that it contains the amino acid hypusine; a two-step post translational modification of a single, conserved lysine residue. Although hypusination of eIF5A is vital for eukaryotic cell viability, the primary role of the protein and its hypusine side chain remain a mystery. eIF5A, initially identified as a translation initiation factor, is not required for global protein synthesis leading to the prevailing proposal that eIF5A is purely involved in the translation of a select subset of mRNAs. Recently a number of mutational studies have focused on the conserved, hypusine-containing loop region of eIF5A where specific residues have been found to be essential for activity without affecting hypusination. It has been postulated that eIF5A exists as a dimer (40 kDa) under native conditions and that these residues may be at the interface of dimerisation. The aim of this research was therefore to conduct a mutational analysis of the loop region in support of this hypothesis. A functional analysis of the Saccharomyces cerevisiae eIF5A mutant proteins K48D, G50A, H52A and K56A revealed that these substitutions impaired growth to varying degrees in vivo with G50A and K48D mutant proteins displaying the most convincing defects. Gel filtration profiles gave unexpected results determining eIF5A mutant and wild type proteins to have a native molecular weight of 30 to 31 kDa, suggesting that the eIF5A oligomeric state may be transitory and subject to certain conditions. The inconclusive results obtained from using gel filtration studies led to an investigation into the feasibility of producing native, hypusinated peptides for future structural studies using nuclear magnetic resonance. Hypusinated and unhypusinated eIF5A were successfully separated into their domains making this a possibility. Finally, this study proposes a role for eIF5A in eukaryotic IRES-driven translation initiation.
- Full Text:
- Date Issued: 2012
- Authors: Charlton, Jane Laura
- Date: 2012
- Subjects: Proteins -- Synthesis -- Research , Saccharomyces cerevisiae -- Research , Dimers , Dimers -- Research , Eukaryotic cells -- Research , Yeast -- Research
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4057 , http://hdl.handle.net/10962/d1004118 , Proteins -- Synthesis -- Research , Saccharomyces cerevisiae -- Research , Dimers , Dimers -- Research , Eukaryotic cells -- Research , Yeast -- Research
- Description: Translation initiation factor 5A (IF5A) is an essential, highly conserved protein found within all eukaryotic (eIF5A) and archaeal (aIF5A) cells. The IF5A protein is unique in that it contains the amino acid hypusine; a two-step post translational modification of a single, conserved lysine residue. Although hypusination of eIF5A is vital for eukaryotic cell viability, the primary role of the protein and its hypusine side chain remain a mystery. eIF5A, initially identified as a translation initiation factor, is not required for global protein synthesis leading to the prevailing proposal that eIF5A is purely involved in the translation of a select subset of mRNAs. Recently a number of mutational studies have focused on the conserved, hypusine-containing loop region of eIF5A where specific residues have been found to be essential for activity without affecting hypusination. It has been postulated that eIF5A exists as a dimer (40 kDa) under native conditions and that these residues may be at the interface of dimerisation. The aim of this research was therefore to conduct a mutational analysis of the loop region in support of this hypothesis. A functional analysis of the Saccharomyces cerevisiae eIF5A mutant proteins K48D, G50A, H52A and K56A revealed that these substitutions impaired growth to varying degrees in vivo with G50A and K48D mutant proteins displaying the most convincing defects. Gel filtration profiles gave unexpected results determining eIF5A mutant and wild type proteins to have a native molecular weight of 30 to 31 kDa, suggesting that the eIF5A oligomeric state may be transitory and subject to certain conditions. The inconclusive results obtained from using gel filtration studies led to an investigation into the feasibility of producing native, hypusinated peptides for future structural studies using nuclear magnetic resonance. Hypusinated and unhypusinated eIF5A were successfully separated into their domains making this a possibility. Finally, this study proposes a role for eIF5A in eukaryotic IRES-driven translation initiation.
- Full Text:
- Date Issued: 2012
Understanding student performance in a large class
- Snowball, Jeanette D, Boughey, Chrissie
- Authors: Snowball, Jeanette D , Boughey, Chrissie
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/71333 , vital:29834 , https://www.tandfonline.com/doi/abs/10.1080/14703297.2012.677658
- Description: Across the world, university teachers are increasingly being required to engage with diversity in the classes they teach. Using the data from a large Economics 1 class at a South African university, this attempts to understand the effects of diversity on chances of success and how assessment can impact on this. By demonstrating how theory can be used to understand results, the paper aims to encourage university teachers to adopt proactive strategies in managing diversity, rather than simply explaining it using student characteristics.
- Full Text: false
- Date Issued: 2012
- Authors: Snowball, Jeanette D , Boughey, Chrissie
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/71333 , vital:29834 , https://www.tandfonline.com/doi/abs/10.1080/14703297.2012.677658
- Description: Across the world, university teachers are increasingly being required to engage with diversity in the classes they teach. Using the data from a large Economics 1 class at a South African university, this attempts to understand the effects of diversity on chances of success and how assessment can impact on this. By demonstrating how theory can be used to understand results, the paper aims to encourage university teachers to adopt proactive strategies in managing diversity, rather than simply explaining it using student characteristics.
- Full Text: false
- Date Issued: 2012