Post-feminism in Cosmopolitan and For Him magazine (FHM) : a critical analysis
- Authors: Legge, Janet Helen
- Date: 2013-07-02
- Subjects: For Him Magazine (South Africa) Cosmopolitan (South Africa) Discourse analysis -- Social aspects Mass media and language Mass media criticism Women in mass media Sex role in mass media Women in popular culture Men in popular culture
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2375 , http://hdl.handle.net/10962/d1005956
- Description: Cosmopolitan and For Him Magazine (FHM) are, at present, both the most widely read and, therefore, the most popular "white" consumer magazines in South Africa. They both appeal to young audiences of between 18 and 34 years of age, approximately, and target middle-class, educated groups of readers. My interest in Cosmopolitan and FHM lies in their ability to influence and shape their readers' actions, values, identities and relationships, in particular with the other gender. My analysis is focused on the cover pages and the Editor's letters of six copies of each magazine, ranging from April to September 2003, providing me with a corpus of 12 cover pages and 12 Editor's letters. I adopt a critical perspective through the use of Fairclough's (1989) Critical Discourse Analysis, supported by Mills (1995) Feminist Stylistics, McLoughlin's (2000) textual analysis of cover pages and Kress & van Leeuwen's (1996) visual analysis tools. By combining these different methodologies my research falls into what is newly termed Feminist Critical Discourse Analysis (Lazar 2005). The cover page analyses used primarily McLoughlin and Kress & van Leeuwen and provides an element of pure genre analysis, while the analysis of the Editor's letters were subject to Fairclough's three inter-related stages of analysis, namely: a Description of the formal textual elements of the letters, an Interpretation which analyses the processes of text production and interpretation, and lastly an Explanation of the socio-historical context. Through an analysis of these magazines, whose interests are being served and how the readers are shaped and positioned by the magazines can be identified. My analyses revealed conflicting discourses within each magazine, however it was Cosmopolitan that revealed more tension and conflict in terms of identifying and representing women, while FHM subscribed, for the most part, uniformly to the "new lad" ideology. However, while Cosmopolitan attempted to show a forward-thinking and emancipatory view of the roles of men and women in society, both magazines covertly sustain patriarchal dominance and hegemonic masculinity. In conclusion, I reveal the need for consumers of the mass media to become more critically aware of the ideologies that are promoted through the differing tools of the media and that only through this critical awareness can any further movement towards equal relations between men and women be made. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Authors: Legge, Janet Helen
- Date: 2013-07-02
- Subjects: For Him Magazine (South Africa) Cosmopolitan (South Africa) Discourse analysis -- Social aspects Mass media and language Mass media criticism Women in mass media Sex role in mass media Women in popular culture Men in popular culture
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2375 , http://hdl.handle.net/10962/d1005956
- Description: Cosmopolitan and For Him Magazine (FHM) are, at present, both the most widely read and, therefore, the most popular "white" consumer magazines in South Africa. They both appeal to young audiences of between 18 and 34 years of age, approximately, and target middle-class, educated groups of readers. My interest in Cosmopolitan and FHM lies in their ability to influence and shape their readers' actions, values, identities and relationships, in particular with the other gender. My analysis is focused on the cover pages and the Editor's letters of six copies of each magazine, ranging from April to September 2003, providing me with a corpus of 12 cover pages and 12 Editor's letters. I adopt a critical perspective through the use of Fairclough's (1989) Critical Discourse Analysis, supported by Mills (1995) Feminist Stylistics, McLoughlin's (2000) textual analysis of cover pages and Kress & van Leeuwen's (1996) visual analysis tools. By combining these different methodologies my research falls into what is newly termed Feminist Critical Discourse Analysis (Lazar 2005). The cover page analyses used primarily McLoughlin and Kress & van Leeuwen and provides an element of pure genre analysis, while the analysis of the Editor's letters were subject to Fairclough's three inter-related stages of analysis, namely: a Description of the formal textual elements of the letters, an Interpretation which analyses the processes of text production and interpretation, and lastly an Explanation of the socio-historical context. Through an analysis of these magazines, whose interests are being served and how the readers are shaped and positioned by the magazines can be identified. My analyses revealed conflicting discourses within each magazine, however it was Cosmopolitan that revealed more tension and conflict in terms of identifying and representing women, while FHM subscribed, for the most part, uniformly to the "new lad" ideology. However, while Cosmopolitan attempted to show a forward-thinking and emancipatory view of the roles of men and women in society, both magazines covertly sustain patriarchal dominance and hegemonic masculinity. In conclusion, I reveal the need for consumers of the mass media to become more critically aware of the ideologies that are promoted through the differing tools of the media and that only through this critical awareness can any further movement towards equal relations between men and women be made. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
What makes news on the front page? : an investigation of conceptions of newsworthiness in the East African Standard
- Authors: Nzioka, Roseleen M
- Date: 2013-06-19
- Subjects: East African Standard (Nairobi, Kenya) Journalism -- Social aspects -- Kenya Journalism -- Editing -- Kenya Newspapers -- Sections, columns, etc -- Kenya Mass media -- Political aspects -- Kenya Newspapers -- Kenya
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:3519 , http://hdl.handle.net/10962/d1008178
- Description: Determining what is newsworthy is a daily challenge even to the very people who source news, produce and disseminate it. This study is part an exposition and exploration of the different approaches that media researchers have used to explain and determine the value of news. Like similar research before it, this study more specifically delves into the news selection process of news of one particular newspaper with the goal of investigating why and how news is selected for publication in the front page. News is the 'result of many forces: ranging from source power, journalistic orientation, medium-preference and market model, news values and production routines and processes. The study briefly expounds on the different definitions of news as perceived in terms of the developed and developing world. Just as journalists do not operate in a vacuum, a close examination of the various definitions reveals that news cannot be defined in isolation. Its definition is intrinsically tied to that of news values. Also explored here are debates about news values and their Western rootedness. Here reference is made to literature regarding theories on the social construction of meanings and on the gatekeeping concept.The study is informed by similar research in gatekeeping studies and sociology of news studies. It is important to state at the outset that the study is not concerned with how news is produced but why there is a bias for certain kinds of news. I am interested in explaining why and how the writers and editors at the East African Standard make decisions about what is worthy of being published on the front page of the newspaper. This distinction is necessary because the theories that inform this study transcend news sourcing and production. This study takes cognizance ofthe fact that one cannot separate social processes from the individual and vice versa. For this reason, this study investigates and analyses the biases of individual gatekeepers at the East African Standard as well as their collective biases. In the concluding section, this study calls for an alternative paradigm for journalism and news. The foregoing discussions in the other sections prove that a universal definition of news and what is newsworthy will not suffice and there is need to contexualise it.
- Full Text:
- Authors: Nzioka, Roseleen M
- Date: 2013-06-19
- Subjects: East African Standard (Nairobi, Kenya) Journalism -- Social aspects -- Kenya Journalism -- Editing -- Kenya Newspapers -- Sections, columns, etc -- Kenya Mass media -- Political aspects -- Kenya Newspapers -- Kenya
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:3519 , http://hdl.handle.net/10962/d1008178
- Description: Determining what is newsworthy is a daily challenge even to the very people who source news, produce and disseminate it. This study is part an exposition and exploration of the different approaches that media researchers have used to explain and determine the value of news. Like similar research before it, this study more specifically delves into the news selection process of news of one particular newspaper with the goal of investigating why and how news is selected for publication in the front page. News is the 'result of many forces: ranging from source power, journalistic orientation, medium-preference and market model, news values and production routines and processes. The study briefly expounds on the different definitions of news as perceived in terms of the developed and developing world. Just as journalists do not operate in a vacuum, a close examination of the various definitions reveals that news cannot be defined in isolation. Its definition is intrinsically tied to that of news values. Also explored here are debates about news values and their Western rootedness. Here reference is made to literature regarding theories on the social construction of meanings and on the gatekeeping concept.The study is informed by similar research in gatekeeping studies and sociology of news studies. It is important to state at the outset that the study is not concerned with how news is produced but why there is a bias for certain kinds of news. I am interested in explaining why and how the writers and editors at the East African Standard make decisions about what is worthy of being published on the front page of the newspaper. This distinction is necessary because the theories that inform this study transcend news sourcing and production. This study takes cognizance ofthe fact that one cannot separate social processes from the individual and vice versa. For this reason, this study investigates and analyses the biases of individual gatekeepers at the East African Standard as well as their collective biases. In the concluding section, this study calls for an alternative paradigm for journalism and news. The foregoing discussions in the other sections prove that a universal definition of news and what is newsworthy will not suffice and there is need to contexualise it.
- Full Text:
Externalism, self-knowledge and explanation
- Authors: Flockemann, Richard
- Date: 2013-06-11
- Subjects: Burge, Tyler Externalism (Philosophy of mind) Self-knowledge, Theory of Philosophy of mind
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2743 , http://hdl.handle.net/10962/d1008060
- Description: In recent years, much attention has been given to the question of whether content externalism is compatible with an account of self-knowledge maintaining that we have an epistemically privileged access to the content of our propositional mental states. Philosophers who maintain the two are incompatible (incompatibilists) have put forward two majors types of challenge, which I call - following Martin Davies - the Achievement and Consequence Problems, which aim to demonstrate that self-knowledge cannot be reconciled with externalism. These challenges have spawned a great deal of literature, and a diverse range of arguments and positions have emerged in response. In this dissertation, I intend to focus on examples of these different avenues of response, and show how none of them are adequate. In the first chapter, I lay the groundwork for the debate, setting up how externalism and self-knowledge are to be understood, and outlining both the incompatibilist challenges as well as the available responses to them. In the second chapter I examine these responses in more detail, concluding finally that the best available response is Tyler Burge's. Burge has two arguments that together establish his compatibilist position. First, he shows that even if externalism is true, our judgements about our occurrent thoughts are immunejrom error. This establishes that our judgements about our thoughts must be true. Second, he offers a transcendental argument for self-knowledge, arguing that our access to our mental states must be not only true, but non-accidentally true, in a way sufficient for genuine knowledge. This establishes that we possess the correct epistemic entitlement to our thoughts. In the third chapter, I argue Burge's arguments do not, in fact, give us good reason to suppose externalism and self-knowledge to be compatible. This, I argue, is because B urge relies upon a transcendental argument, which, in this context, cannot establish that we have self-knowledge if externalism is true. All it establishes, I argue, is that we do possess self-knowledge. And this is insufficient to establish that externalism and self-knowledge are compatible. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Authors: Flockemann, Richard
- Date: 2013-06-11
- Subjects: Burge, Tyler Externalism (Philosophy of mind) Self-knowledge, Theory of Philosophy of mind
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2743 , http://hdl.handle.net/10962/d1008060
- Description: In recent years, much attention has been given to the question of whether content externalism is compatible with an account of self-knowledge maintaining that we have an epistemically privileged access to the content of our propositional mental states. Philosophers who maintain the two are incompatible (incompatibilists) have put forward two majors types of challenge, which I call - following Martin Davies - the Achievement and Consequence Problems, which aim to demonstrate that self-knowledge cannot be reconciled with externalism. These challenges have spawned a great deal of literature, and a diverse range of arguments and positions have emerged in response. In this dissertation, I intend to focus on examples of these different avenues of response, and show how none of them are adequate. In the first chapter, I lay the groundwork for the debate, setting up how externalism and self-knowledge are to be understood, and outlining both the incompatibilist challenges as well as the available responses to them. In the second chapter I examine these responses in more detail, concluding finally that the best available response is Tyler Burge's. Burge has two arguments that together establish his compatibilist position. First, he shows that even if externalism is true, our judgements about our occurrent thoughts are immunejrom error. This establishes that our judgements about our thoughts must be true. Second, he offers a transcendental argument for self-knowledge, arguing that our access to our mental states must be not only true, but non-accidentally true, in a way sufficient for genuine knowledge. This establishes that we possess the correct epistemic entitlement to our thoughts. In the third chapter, I argue Burge's arguments do not, in fact, give us good reason to suppose externalism and self-knowledge to be compatible. This, I argue, is because B urge relies upon a transcendental argument, which, in this context, cannot establish that we have self-knowledge if externalism is true. All it establishes, I argue, is that we do possess self-knowledge. And this is insufficient to establish that externalism and self-knowledge are compatible. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
"Museum spaces in post-apartheid South Africa": the Durban Art Gallery as a case study
- Authors: Brown, Carol
- Date: 2006
- Subjects: Durban Art Gallery -- History Museums -- South Africa -- Durban Art museums -- South Africa -- Durban Art -- South Africa -- Durban -- Exhibitions Art, Modern -- 20th century -- Exhibitions Art, Modern -- 19th century -- Exhibitions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2446 , http://hdl.handle.net/10962/d1006231
- Description: This dissertation examines the history of the Durban Art Gallery from its founding in 1892 until 2004, a decade after the First Democratic Election. While the emphasis is on significant changes that were introduced in the post-1994 period, the earlier section of the study locates these initiatives within a broad historical framework. The collecting policies of the museum as well as its exhibitions and programmes are considered in the light of the institution 's changing social and political context as well as shifting imperatives within a local, regional and national art world. The Durban Art Gallery was established in order to promote a European, and particularly British, culture, and the acquisition and appreciation of art was considered an important element in the formation of a stable society. By providing a broad overview of the early years of the gallery, I identify reasons for the choice of acquisitions and explore the impact and reception of a selection of exhibitions. I investigate changes during the 1960s and 1970s through an examination of the Art South Africa Today exhibitions: in addition to opening up institutional spaces to a racially mixed community, these exhibitions marked the beginning of an imperative to show protest art. I argue that, during the political climate of the 1980s, there was a tension in the cultural arena between, on the one hand, a motivation to retain a Western ideal of 'high art' and, on the other, a drive to accommodate the new forms of people's art and to challenge the values and ideological standpoints that had been instrumental in shaping collecting and exhibiting policies in the South African art arena. I explore this tension through a discussion of the Cape Town Triennial exhibitions, organised jointly by all the official museums, which ran alongside more inclusive and independently curated exhibitions, such as Tributaries, which were shown mainly outside the country. The post-1994 period marked an opening up of spaces, both literally and conceptually. This openness was manifest in the revised strategies that were introduced to show the Durban Art Gallery 's permanent collection as well as in two key public projects that were started - Red Eye @rt and the AIDS 2000 ribbon. Through an examination of these strategies and initiatives, I argue that the central role of the Durban Art Gallery has shifted from being a repository to providing an interactive public space.
- Full Text:
- Date Issued: 2006
- Authors: Brown, Carol
- Date: 2006
- Subjects: Durban Art Gallery -- History Museums -- South Africa -- Durban Art museums -- South Africa -- Durban Art -- South Africa -- Durban -- Exhibitions Art, Modern -- 20th century -- Exhibitions Art, Modern -- 19th century -- Exhibitions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2446 , http://hdl.handle.net/10962/d1006231
- Description: This dissertation examines the history of the Durban Art Gallery from its founding in 1892 until 2004, a decade after the First Democratic Election. While the emphasis is on significant changes that were introduced in the post-1994 period, the earlier section of the study locates these initiatives within a broad historical framework. The collecting policies of the museum as well as its exhibitions and programmes are considered in the light of the institution 's changing social and political context as well as shifting imperatives within a local, regional and national art world. The Durban Art Gallery was established in order to promote a European, and particularly British, culture, and the acquisition and appreciation of art was considered an important element in the formation of a stable society. By providing a broad overview of the early years of the gallery, I identify reasons for the choice of acquisitions and explore the impact and reception of a selection of exhibitions. I investigate changes during the 1960s and 1970s through an examination of the Art South Africa Today exhibitions: in addition to opening up institutional spaces to a racially mixed community, these exhibitions marked the beginning of an imperative to show protest art. I argue that, during the political climate of the 1980s, there was a tension in the cultural arena between, on the one hand, a motivation to retain a Western ideal of 'high art' and, on the other, a drive to accommodate the new forms of people's art and to challenge the values and ideological standpoints that had been instrumental in shaping collecting and exhibiting policies in the South African art arena. I explore this tension through a discussion of the Cape Town Triennial exhibitions, organised jointly by all the official museums, which ran alongside more inclusive and independently curated exhibitions, such as Tributaries, which were shown mainly outside the country. The post-1994 period marked an opening up of spaces, both literally and conceptually. This openness was manifest in the revised strategies that were introduced to show the Durban Art Gallery 's permanent collection as well as in two key public projects that were started - Red Eye @rt and the AIDS 2000 ribbon. Through an examination of these strategies and initiatives, I argue that the central role of the Durban Art Gallery has shifted from being a repository to providing an interactive public space.
- Full Text:
- Date Issued: 2006
A case study of two teachers' understanding of and attitudes towards bilingualism and multiculturalism in a South African primary school
- Authors: Sutton, Candace
- Date: 2006
- Subjects: Bilingualism in children , English language -- Study and teaching (Elementary) -- Foreign speakers , English language -- Study and teaching (Elementary) -- South Africa , Education, Bilingual -- South Africa , Language and languages -- Study and teaching , Language policy -- South Africa , Multicultural education -- South Africa , Language and education -- South Africa , Multiculturalism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2363 , http://hdl.handle.net/10962/d1002646 , Bilingualism in children , English language -- Study and teaching (Elementary) -- Foreign speakers , English language -- Study and teaching (Elementary) -- South Africa , Education, Bilingual -- South Africa , Language and languages -- Study and teaching , Language policy -- South Africa , Multicultural education -- South Africa , Language and education -- South Africa , Multiculturalism
- Description: At present, there is an emphasis in South African education on promoting multicultural classrooms in schools. This thesis examines the classroom culture of a South African English-medium school, where the majority of the learners are Second Language English learners. It first describes, in the form of a case-study, how two teachers have constructed the culture of their foundation phase classrooms. It then considers why the two teachers have constructed their classrooms in such ways by exploring their knowledge and understanding of, and attitudes towards, multiculturalism, second language acquisition and multilingualism. The study also briefly considers whether teacher training has sufficiently prepared these teachers for the challenges of a multicultural classroom. The data is discussed in terms of education and second language acquisition theory and South African education and language policies. The results of this study indicate that for the most part the classroom culture is distinctly Western and that the teachers have two fundamental assumptions that underpin their action and classroom construction. The first is that a lack of exposure to English is the primary cause of language problems for L2 learners and the second is that the L1 does not need to be maintained or promoted in the school environment because learners are sufficiently exposed to their L1 in the home. The thesis concludes that shortcomings in training and information encourages these two assumptions to take root and that more in-service training that focuses specifically on the nature of second language acquisition and multiculturalism is necessary.
- Full Text:
- Date Issued: 2006
- Authors: Sutton, Candace
- Date: 2006
- Subjects: Bilingualism in children , English language -- Study and teaching (Elementary) -- Foreign speakers , English language -- Study and teaching (Elementary) -- South Africa , Education, Bilingual -- South Africa , Language and languages -- Study and teaching , Language policy -- South Africa , Multicultural education -- South Africa , Language and education -- South Africa , Multiculturalism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2363 , http://hdl.handle.net/10962/d1002646 , Bilingualism in children , English language -- Study and teaching (Elementary) -- Foreign speakers , English language -- Study and teaching (Elementary) -- South Africa , Education, Bilingual -- South Africa , Language and languages -- Study and teaching , Language policy -- South Africa , Multicultural education -- South Africa , Language and education -- South Africa , Multiculturalism
- Description: At present, there is an emphasis in South African education on promoting multicultural classrooms in schools. This thesis examines the classroom culture of a South African English-medium school, where the majority of the learners are Second Language English learners. It first describes, in the form of a case-study, how two teachers have constructed the culture of their foundation phase classrooms. It then considers why the two teachers have constructed their classrooms in such ways by exploring their knowledge and understanding of, and attitudes towards, multiculturalism, second language acquisition and multilingualism. The study also briefly considers whether teacher training has sufficiently prepared these teachers for the challenges of a multicultural classroom. The data is discussed in terms of education and second language acquisition theory and South African education and language policies. The results of this study indicate that for the most part the classroom culture is distinctly Western and that the teachers have two fundamental assumptions that underpin their action and classroom construction. The first is that a lack of exposure to English is the primary cause of language problems for L2 learners and the second is that the L1 does not need to be maintained or promoted in the school environment because learners are sufficiently exposed to their L1 in the home. The thesis concludes that shortcomings in training and information encourages these two assumptions to take root and that more in-service training that focuses specifically on the nature of second language acquisition and multiculturalism is necessary.
- Full Text:
- Date Issued: 2006
A genetic and ecophysiological comparison of co-occuring indigenous (Perna perna) and invasive (Mytilus galloprovincialis) intertidal mussels
- Authors: Zardi, Gerardo Ivan
- Date: 2006
- Subjects: Perna -- South Africa Mytilus galloprovincialis -- South Africa Mussels -- South Africa Mytilidae -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5613 , http://hdl.handle.net/10962/d1003066
- Description: The Mediterranean mussel Mytilus galloprovincialis is the most successful marine invasive species in South Africa. Its presence has had significant ecological consequences on the intertidal communities of the west coast. On the south coast, M galloprovincialis co-exists and competes with the indigenous intertidal mussel Perna perna in the lower balanoid zone, where they show partial habitat segregation. The upper and the lower mussel zones are dominated by M. galloprovincialis and P. perna respectively while they co-occur in the mid zone. In this thesis M. galloprovincialis and P. perna are compared in terms of their population genetics and their ecophysiology. The success of an invader depends on its ability to react to new environmental factors, especially when compared to indigenous species. The distribution and diversity of intertidal species throughout the world are strongly influenced by periodic sand inundation and hydrodynamic stress. Occupying the lower intertidal zone, P. perna is more strongly influenced by sand (burial and sand in suspension) than M. galioprovincialis. Despite this, P. perna is more vulnerable to the effects of sand, showing higher mortality rates under experimental conditions in both the laboratory and the field. M. galioprovincialis has longer labial palps than P. perna, indicating a better ability to sort particles. This, and a higher tolerance to anoxia, explains its lower mortality rates when exposed to burial or suspended sand. Habitat segregation is often explained by physiological tolerances, but in this case, such explanations fail. The ability of a mussel to withstand wave-generated hydrodynamic stress depends mainly on its byssal attachment strength. The higher attachment strength of P. perna compared to M. galioprovincialis and of solitary mussels compared to mussels living within a bed (bed mussels) can be explained by more and thicker byssal threads. M galloprovincialis also has a wider shell, is subjected to higher hydrodynamic loads than P. perna and shows a higher theoretical probability of dislodgement, this is borne out under field conditions. The attachment strength of both species increased from higher to lower shore, in parallel to a gradient of a stronger wave action. Monthly measurements showed that P. perna is always more strongly attached than M. galloprovincialis and revealed seasonal fluctuations of attachment strength for both species in response to wave height. The gonad index of both species was negatively cross-correlated with attachment strength. The results are discussed in the context of the evolutionary strategy of the alien mussel, which directs most of its energy to fast growth and high reproductive output, apparently at the cost of reduced attachment strength. This raises the prediction that its invasive impact will be more pronounced at sites subjected to low or moderate wave action at heavily exposed sites. The potential of a species for invasion is also determined by the ability of the invader to disperse. Population genetics provide indirect information about dispersal through a direct measurement of gene flow. The low genetic divergence (measured as mtDNA) of M. galloprovincialis confirms its recent arrival in South Africa. In contrast, the population genetics structure of P. perna revealed strong divergence on the south-east coast, resulting in a western lineage (straddling the distributional gap of the Benguela System), and an eastern lineage, with an overlap region of the two on the south coast between Kenton-on-Sea and Haga Haga. This genetic disjunction may be caused by Agulhas Current acting as an oceanographic barrier to larval dispersal, or by different environmental selective forces acting on regional populations. Over the last ten years, M. galloprovincialis has shown a decrease or cessation of its spread to the east in exactly the region of the genetic disjunction in P. perna, again suggesting either an oceanographic barrier to larval dispersal, or increasing selection driven by sharp gradients in environmental conditions.
- Full Text:
- Date Issued: 2006
- Authors: Zardi, Gerardo Ivan
- Date: 2006
- Subjects: Perna -- South Africa Mytilus galloprovincialis -- South Africa Mussels -- South Africa Mytilidae -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5613 , http://hdl.handle.net/10962/d1003066
- Description: The Mediterranean mussel Mytilus galloprovincialis is the most successful marine invasive species in South Africa. Its presence has had significant ecological consequences on the intertidal communities of the west coast. On the south coast, M galloprovincialis co-exists and competes with the indigenous intertidal mussel Perna perna in the lower balanoid zone, where they show partial habitat segregation. The upper and the lower mussel zones are dominated by M. galloprovincialis and P. perna respectively while they co-occur in the mid zone. In this thesis M. galloprovincialis and P. perna are compared in terms of their population genetics and their ecophysiology. The success of an invader depends on its ability to react to new environmental factors, especially when compared to indigenous species. The distribution and diversity of intertidal species throughout the world are strongly influenced by periodic sand inundation and hydrodynamic stress. Occupying the lower intertidal zone, P. perna is more strongly influenced by sand (burial and sand in suspension) than M. galioprovincialis. Despite this, P. perna is more vulnerable to the effects of sand, showing higher mortality rates under experimental conditions in both the laboratory and the field. M. galioprovincialis has longer labial palps than P. perna, indicating a better ability to sort particles. This, and a higher tolerance to anoxia, explains its lower mortality rates when exposed to burial or suspended sand. Habitat segregation is often explained by physiological tolerances, but in this case, such explanations fail. The ability of a mussel to withstand wave-generated hydrodynamic stress depends mainly on its byssal attachment strength. The higher attachment strength of P. perna compared to M. galioprovincialis and of solitary mussels compared to mussels living within a bed (bed mussels) can be explained by more and thicker byssal threads. M galloprovincialis also has a wider shell, is subjected to higher hydrodynamic loads than P. perna and shows a higher theoretical probability of dislodgement, this is borne out under field conditions. The attachment strength of both species increased from higher to lower shore, in parallel to a gradient of a stronger wave action. Monthly measurements showed that P. perna is always more strongly attached than M. galloprovincialis and revealed seasonal fluctuations of attachment strength for both species in response to wave height. The gonad index of both species was negatively cross-correlated with attachment strength. The results are discussed in the context of the evolutionary strategy of the alien mussel, which directs most of its energy to fast growth and high reproductive output, apparently at the cost of reduced attachment strength. This raises the prediction that its invasive impact will be more pronounced at sites subjected to low or moderate wave action at heavily exposed sites. The potential of a species for invasion is also determined by the ability of the invader to disperse. Population genetics provide indirect information about dispersal through a direct measurement of gene flow. The low genetic divergence (measured as mtDNA) of M. galloprovincialis confirms its recent arrival in South Africa. In contrast, the population genetics structure of P. perna revealed strong divergence on the south-east coast, resulting in a western lineage (straddling the distributional gap of the Benguela System), and an eastern lineage, with an overlap region of the two on the south coast between Kenton-on-Sea and Haga Haga. This genetic disjunction may be caused by Agulhas Current acting as an oceanographic barrier to larval dispersal, or by different environmental selective forces acting on regional populations. Over the last ten years, M. galloprovincialis has shown a decrease or cessation of its spread to the east in exactly the region of the genetic disjunction in P. perna, again suggesting either an oceanographic barrier to larval dispersal, or increasing selection driven by sharp gradients in environmental conditions.
- Full Text:
- Date Issued: 2006
A review of lessons learned to inform capacity-building for sustainable nature-based tourism development in the European Union funded ʺSupport to the Wild Coast Spatial Development Initiative Pilot Programmeʺ
- Authors: Wright, Brian Bradley
- Date: 2006
- Subjects: Wild Coast Spatial Development Initiative Pilot Programme , Sustainable development -- South Africa -- Eastern Cape -- Citizen participation , Sustainable development -- Environmental aspects -- South Africa -- Eastern Cape , Conservation and natural resources -- South Africa -- Eastern Cape , Natural resources -- Management -- South Africa -- Eastern Cape , Natural resources -- Management -- International cooperation , Rural development -- South Africa -- Eastern Cape , Eastern Cape (South Africa) -- Economic development , South Africa -- Foreign economic relations -- European Union countries , European Union countries -- Foreign economic relations -- South Africa , Ecotourism -- South Africa -- Eastern Cape -- Citizen participation , Tourism -- Environmental aspects -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1744 , http://hdl.handle.net/10962/d1003628 , Wild Coast Spatial Development Initiative Pilot Programme , Sustainable development -- South Africa -- Eastern Cape -- Citizen participation , Sustainable development -- Environmental aspects -- South Africa -- Eastern Cape , Conservation and natural resources -- South Africa -- Eastern Cape , Natural resources -- Management -- South Africa -- Eastern Cape , Natural resources -- Management -- International cooperation , Rural development -- South Africa -- Eastern Cape , Eastern Cape (South Africa) -- Economic development , South Africa -- Foreign economic relations -- European Union countries , European Union countries -- Foreign economic relations -- South Africa , Ecotourism -- South Africa -- Eastern Cape -- Citizen participation , Tourism -- Environmental aspects -- South Africa -- Eastern Cape
- Description: This case-study establishes the influences of power-knowledge relationships on capacity-building for sustainability in the European Union Funded ‘Wild Coast Spatial Development Initiative Pilot Programme’ (EU Programme). It aims to capture the lessons learned for capacitybuilding to support nature-based tourism initiatives on the Wild Coast. The EU Programme aimed to achieve economic and social development of previously disadvantaged communities through nature-based tourism enterprises, and to develop capacity of local authorities and communities to support environmental management. The study discusses common trends in thematic categories emerging from the research data, and contextualises research findings in a broader development landscape. This study indicates that power-knowledge relations were reflected in the EU Programme’s development ideology by an exclusionary development approach, which lacked a participatory ethos. This exclusionary approach did not support an enabling environment for capacity-building. This development approach, guiding the programme conceptualization, design and implementation processes, resulted in a programme with unrealistic objectives, time-frames and resource allocations; a programme resisted by provincial and local government. The study provides a causal link between participation, programme relevance, programme ownership, commitment of stakeholders, effective management and capacity-building for sustainable programme implementation. The study argues that the underlying motivation for the exclusionary EU development ideology in the programme is driven by a risk management strategy. This approach allows the EU to hold power in the development process, whereas, an inclusionary participative development methodology would require a more in-depth negotiation with stakeholders, thereby requiring the EU to relinquish existing levels of power and control. This may increase the risk of an unexpected programme design outcome and associated exposure to financial risk. It may also have a significant financial effect on donor countries' consultancies and consultants currently driving the development industry. This study recommends an interactive-participative methodology for programme design and implementation, if an enabling environment for capacity-building is to be created. In addition, all programme stakeholders must share contractual accountability for programme outcomes. This requires a paradigm shift in the EU development ideology to an inclusionary methodology. However, this research suggests that the current EU development approach will not voluntarily change. I, therefore, argue that South Africa needs to develop a legislative framework that will guide donor-funded development programme methodology, to support an enabling environment for capacity-building.
- Full Text:
- Date Issued: 2006
- Authors: Wright, Brian Bradley
- Date: 2006
- Subjects: Wild Coast Spatial Development Initiative Pilot Programme , Sustainable development -- South Africa -- Eastern Cape -- Citizen participation , Sustainable development -- Environmental aspects -- South Africa -- Eastern Cape , Conservation and natural resources -- South Africa -- Eastern Cape , Natural resources -- Management -- South Africa -- Eastern Cape , Natural resources -- Management -- International cooperation , Rural development -- South Africa -- Eastern Cape , Eastern Cape (South Africa) -- Economic development , South Africa -- Foreign economic relations -- European Union countries , European Union countries -- Foreign economic relations -- South Africa , Ecotourism -- South Africa -- Eastern Cape -- Citizen participation , Tourism -- Environmental aspects -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1744 , http://hdl.handle.net/10962/d1003628 , Wild Coast Spatial Development Initiative Pilot Programme , Sustainable development -- South Africa -- Eastern Cape -- Citizen participation , Sustainable development -- Environmental aspects -- South Africa -- Eastern Cape , Conservation and natural resources -- South Africa -- Eastern Cape , Natural resources -- Management -- South Africa -- Eastern Cape , Natural resources -- Management -- International cooperation , Rural development -- South Africa -- Eastern Cape , Eastern Cape (South Africa) -- Economic development , South Africa -- Foreign economic relations -- European Union countries , European Union countries -- Foreign economic relations -- South Africa , Ecotourism -- South Africa -- Eastern Cape -- Citizen participation , Tourism -- Environmental aspects -- South Africa -- Eastern Cape
- Description: This case-study establishes the influences of power-knowledge relationships on capacity-building for sustainability in the European Union Funded ‘Wild Coast Spatial Development Initiative Pilot Programme’ (EU Programme). It aims to capture the lessons learned for capacitybuilding to support nature-based tourism initiatives on the Wild Coast. The EU Programme aimed to achieve economic and social development of previously disadvantaged communities through nature-based tourism enterprises, and to develop capacity of local authorities and communities to support environmental management. The study discusses common trends in thematic categories emerging from the research data, and contextualises research findings in a broader development landscape. This study indicates that power-knowledge relations were reflected in the EU Programme’s development ideology by an exclusionary development approach, which lacked a participatory ethos. This exclusionary approach did not support an enabling environment for capacity-building. This development approach, guiding the programme conceptualization, design and implementation processes, resulted in a programme with unrealistic objectives, time-frames and resource allocations; a programme resisted by provincial and local government. The study provides a causal link between participation, programme relevance, programme ownership, commitment of stakeholders, effective management and capacity-building for sustainable programme implementation. The study argues that the underlying motivation for the exclusionary EU development ideology in the programme is driven by a risk management strategy. This approach allows the EU to hold power in the development process, whereas, an inclusionary participative development methodology would require a more in-depth negotiation with stakeholders, thereby requiring the EU to relinquish existing levels of power and control. This may increase the risk of an unexpected programme design outcome and associated exposure to financial risk. It may also have a significant financial effect on donor countries' consultancies and consultants currently driving the development industry. This study recommends an interactive-participative methodology for programme design and implementation, if an enabling environment for capacity-building is to be created. In addition, all programme stakeholders must share contractual accountability for programme outcomes. This requires a paradigm shift in the EU development ideology to an inclusionary methodology. However, this research suggests that the current EU development approach will not voluntarily change. I, therefore, argue that South Africa needs to develop a legislative framework that will guide donor-funded development programme methodology, to support an enabling environment for capacity-building.
- Full Text:
- Date Issued: 2006
A strategy for the development of team leaders in the East Cape motor industry cluster : a competency based approach
- Authors: Melamed, Graham Morrison
- Date: 2006
- Subjects: Leadership , Teams in the workplace , Automobile industry and trade -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , DTech
- Identifier: vital:8568 , http://hdl.handle.net/10948/419 , Leadership , Teams in the workplace , Automobile industry and trade -- South Africa -- Eastern Cape
- Description: The research undertaken in this study was to identify the strategy needed to be adopted by the East Cape Motor Industry Cluster (ECMIC) in order to develop the competencies of its Team Leaders. v Hamel and Prahalad (1994: 28) are of the opinion that the focus of a company must move from current market share, to the share of tomorrow’s opportunities that the company can reasonably expect to gain. The company must therefore consider what it can achieve with its existing set of competencies, and what new competencies need to be acquired in order to prosper in the future. The development of competencies is thus deemed to be critical to the South African economy as the various local automotive manufacturers enter the export field. The ECMIC has traditionally been considered the heart of the automotive industry in South Africa with three of the major manufacturers located in the Nelson Mandela and Buffalo City Metropoles. In order to support these manufacturers, a vast number of component manufacturers and service providers have been established to support the automotive manufacturers both in the ECMIC and in other areas of the country. Since the establishment of a democratic South Africa and the removal of sanctions, the automotive industry has started to establish itself globally. This study will undertake a literature study of the application of competencies in the workplace, teams and team leaders and how competencies are applied in the ECMIC. The results of an empirical study into core competencies in the ECMIC will be used to elucidate a set of competencies which will be used to develop a strategy utilising the competency approach in team leaders in the ECMIC.
- Full Text:
- Date Issued: 2006
- Authors: Melamed, Graham Morrison
- Date: 2006
- Subjects: Leadership , Teams in the workplace , Automobile industry and trade -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , DTech
- Identifier: vital:8568 , http://hdl.handle.net/10948/419 , Leadership , Teams in the workplace , Automobile industry and trade -- South Africa -- Eastern Cape
- Description: The research undertaken in this study was to identify the strategy needed to be adopted by the East Cape Motor Industry Cluster (ECMIC) in order to develop the competencies of its Team Leaders. v Hamel and Prahalad (1994: 28) are of the opinion that the focus of a company must move from current market share, to the share of tomorrow’s opportunities that the company can reasonably expect to gain. The company must therefore consider what it can achieve with its existing set of competencies, and what new competencies need to be acquired in order to prosper in the future. The development of competencies is thus deemed to be critical to the South African economy as the various local automotive manufacturers enter the export field. The ECMIC has traditionally been considered the heart of the automotive industry in South Africa with three of the major manufacturers located in the Nelson Mandela and Buffalo City Metropoles. In order to support these manufacturers, a vast number of component manufacturers and service providers have been established to support the automotive manufacturers both in the ECMIC and in other areas of the country. Since the establishment of a democratic South Africa and the removal of sanctions, the automotive industry has started to establish itself globally. This study will undertake a literature study of the application of competencies in the workplace, teams and team leaders and how competencies are applied in the ECMIC. The results of an empirical study into core competencies in the ECMIC will be used to elucidate a set of competencies which will be used to develop a strategy utilising the competency approach in team leaders in the ECMIC.
- Full Text:
- Date Issued: 2006
A technique for evaluating species richness maps generated from collections data
- Robertson, Mark P, Barker, Nigel P
- Authors: Robertson, Mark P , Barker, Nigel P
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6538 , http://hdl.handle.net/10962/d1005979
- Description: There is considerable pressure on conservation planners to use existing data from herbarium and museum collections for planning and monitoring, despite the weaknesses of such data. It is thus important to be able to assess the quality of this information. One application of these data is the production of species richness maps. However, sampling effort is generally not consistent throughout a region for maps generated from collections data, and it is thus desirable to identify geographic grid cells (such as quarter degree squares: QDS) for which there has been low sampling effort. We describe a technique that can be used to identify QDS that are likely to have low species richness that is due to insufficient sampling effort rather than to low actual species richness. The technique exploits relationships between climate and species richness to detect QDS that are poorly sampled. This approach offers advantages over the current practice of applying a single threshold across the entire map region to detectQDSthat are poorly sampled. Here we report on the application of our technique to plant species richness data in the PRECIS database. Results reveal that the majority of QDS in the Flora of Southern Africa region can be considered to be poorly sampled, even when using conservative thresholds for richness values. The advantages and weaknesses of the technique are discussed and issues requiring further investigation are highlighted.
- Full Text:
- Date Issued: 2006
- Authors: Robertson, Mark P , Barker, Nigel P
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6538 , http://hdl.handle.net/10962/d1005979
- Description: There is considerable pressure on conservation planners to use existing data from herbarium and museum collections for planning and monitoring, despite the weaknesses of such data. It is thus important to be able to assess the quality of this information. One application of these data is the production of species richness maps. However, sampling effort is generally not consistent throughout a region for maps generated from collections data, and it is thus desirable to identify geographic grid cells (such as quarter degree squares: QDS) for which there has been low sampling effort. We describe a technique that can be used to identify QDS that are likely to have low species richness that is due to insufficient sampling effort rather than to low actual species richness. The technique exploits relationships between climate and species richness to detect QDS that are poorly sampled. This approach offers advantages over the current practice of applying a single threshold across the entire map region to detectQDSthat are poorly sampled. Here we report on the application of our technique to plant species richness data in the PRECIS database. Results reveal that the majority of QDS in the Flora of Southern Africa region can be considered to be poorly sampled, even when using conservative thresholds for richness values. The advantages and weaknesses of the technique are discussed and issues requiring further investigation are highlighted.
- Full Text:
- Date Issued: 2006
Adaptive livelihood strategies of the Basarwa: a case of Khwai and Xaxaba, Ngamiland district, Botswana
- Authors: Madzwamuse, Masego S
- Date: 2006
- Subjects: San (African people) -- Botswana , Land use -- Botswana , Rural development -- Botswana , Natural resources -- Management -- Botswana , Conservation of natural resources -- Botswana , Climatic changes -- Environmental aspects -- Botswana
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:4737 , http://hdl.handle.net/10962/d1005286 , San (African people) -- Botswana , Land use -- Botswana , Rural development -- Botswana , Natural resources -- Management -- Botswana , Conservation of natural resources -- Botswana , Climatic changes -- Environmental aspects -- Botswana
- Description: This thesis looks into the land use and natural resource management systems of Basarwa communities in Ngamiland in the northwest of Botswana. The study specifically focuses on Basarwa communities living in and on the edges of the Okavango Delta. The link between these communities and their natural resources is explored using the Sustainable Rural Livelihoods Framework and the Adaptive Renewal Cycle. The core assumption in this thesis is that livelihood strategies are constantly renewed and adapted to promote resilience in ecological and social systems. Fieldwork data collected between May 2000 and July 2001 and secondary data is used to deliberate on this point. The thesis confirms that the Basarwa’s livelihood strategies were adaptive only in as far as traditional livelihoods are concerned. The thesis traces the changes that the Basarwa have experienced as a result of policy restrictions through the different phases of the adaptive renewal cycle. The period following Independence in Botswana saw a policy shift which resulted in the Basarwa becoming landless. With mainly land-based livelihood strategies, the Basarwa were faced with new forms of crises and vulnerability which their traditional adaptive strategies were not designed for. It comes to the conclusion that the Basarwa are currently stuck in a reorganisation phase; however, the CBNRM Draft Policy of Botswana offers a glimpse of hope as it provides an opportunity for the Basarwa to progress through the full cycle of reorganisation, renewal, conservation and release.
- Full Text:
- Date Issued: 2006
- Authors: Madzwamuse, Masego S
- Date: 2006
- Subjects: San (African people) -- Botswana , Land use -- Botswana , Rural development -- Botswana , Natural resources -- Management -- Botswana , Conservation of natural resources -- Botswana , Climatic changes -- Environmental aspects -- Botswana
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:4737 , http://hdl.handle.net/10962/d1005286 , San (African people) -- Botswana , Land use -- Botswana , Rural development -- Botswana , Natural resources -- Management -- Botswana , Conservation of natural resources -- Botswana , Climatic changes -- Environmental aspects -- Botswana
- Description: This thesis looks into the land use and natural resource management systems of Basarwa communities in Ngamiland in the northwest of Botswana. The study specifically focuses on Basarwa communities living in and on the edges of the Okavango Delta. The link between these communities and their natural resources is explored using the Sustainable Rural Livelihoods Framework and the Adaptive Renewal Cycle. The core assumption in this thesis is that livelihood strategies are constantly renewed and adapted to promote resilience in ecological and social systems. Fieldwork data collected between May 2000 and July 2001 and secondary data is used to deliberate on this point. The thesis confirms that the Basarwa’s livelihood strategies were adaptive only in as far as traditional livelihoods are concerned. The thesis traces the changes that the Basarwa have experienced as a result of policy restrictions through the different phases of the adaptive renewal cycle. The period following Independence in Botswana saw a policy shift which resulted in the Basarwa becoming landless. With mainly land-based livelihood strategies, the Basarwa were faced with new forms of crises and vulnerability which their traditional adaptive strategies were not designed for. It comes to the conclusion that the Basarwa are currently stuck in a reorganisation phase; however, the CBNRM Draft Policy of Botswana offers a glimpse of hope as it provides an opportunity for the Basarwa to progress through the full cycle of reorganisation, renewal, conservation and release.
- Full Text:
- Date Issued: 2006
An edition of a selection of poems by John Randal Bradburne
- Authors: Hacksley, Helen Elizabeth
- Date: 2006
- Subjects: Bradburne, John, -1979 Bradburne, John, -1979 -- Criticism and interpretation Poets, South African -- 20th century -- Biography
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2288 , http://hdl.handle.net/10962/d1008069
- Description: This thesis examines the life and work of John Randal Bradburne (1921-1979), poet, mystic, musician, cenobite, sometime soldier, pilgrim and wanderer. His religious experiences, particularly, gave rise to a vast corpus of verse, virtually all of it as yet unpublished. This study provides a brief overview of his life, and a critical and textual introduction to a sample selection of poems entitled Bradburne 's Assays. The biography has been compiled from published and unpublished sources, as well as from personal interviews and correspondence with Bradburne's friends, relatives and associates in South Africa, Zimbabwe and the United Kingdom. Chief among these are two unpublished biographies by Judith, Countess of List owe I. Bradburne's extant corpus consists of over five thousand titled pieces of verse, ranging from brieflyrics to verses hundreds of pages long. The forty-seven poems comprising Bradburne 's Assays, published here for the first time, were selected and arranged by Bradburne himself in a single sequence. A unique collection in his corpus, they are unified by their common sonnet form and their contemplative approach to secular and religious experiences. An accurate reading text of this set of poems, transcribed from Bradburne's typescripts, currently held at Holyhead in Wales, is provided. These typescripts have been electronically scanned and are presented in the Appendix. Editorial intrusion, which has been kept to a minimum, is recorded in the critical apparatus beneath the text of the poems. Since all the poems in this ed ition are presented here for the first time, each is accompanied by detailed commentary on their form and content. Where necessary, interpretations of obscure passages have been suggested. A general index to the Introduction and Commentary is supplied, along with indexes of first lines and titles of the poems. It is hoped that this thesis will stimulate further study of the life and work of a unique and intriguing figure.
- Full Text:
- Date Issued: 2006
- Authors: Hacksley, Helen Elizabeth
- Date: 2006
- Subjects: Bradburne, John, -1979 Bradburne, John, -1979 -- Criticism and interpretation Poets, South African -- 20th century -- Biography
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2288 , http://hdl.handle.net/10962/d1008069
- Description: This thesis examines the life and work of John Randal Bradburne (1921-1979), poet, mystic, musician, cenobite, sometime soldier, pilgrim and wanderer. His religious experiences, particularly, gave rise to a vast corpus of verse, virtually all of it as yet unpublished. This study provides a brief overview of his life, and a critical and textual introduction to a sample selection of poems entitled Bradburne 's Assays. The biography has been compiled from published and unpublished sources, as well as from personal interviews and correspondence with Bradburne's friends, relatives and associates in South Africa, Zimbabwe and the United Kingdom. Chief among these are two unpublished biographies by Judith, Countess of List owe I. Bradburne's extant corpus consists of over five thousand titled pieces of verse, ranging from brieflyrics to verses hundreds of pages long. The forty-seven poems comprising Bradburne 's Assays, published here for the first time, were selected and arranged by Bradburne himself in a single sequence. A unique collection in his corpus, they are unified by their common sonnet form and their contemplative approach to secular and religious experiences. An accurate reading text of this set of poems, transcribed from Bradburne's typescripts, currently held at Holyhead in Wales, is provided. These typescripts have been electronically scanned and are presented in the Appendix. Editorial intrusion, which has been kept to a minimum, is recorded in the critical apparatus beneath the text of the poems. Since all the poems in this ed ition are presented here for the first time, each is accompanied by detailed commentary on their form and content. Where necessary, interpretations of obscure passages have been suggested. A general index to the Introduction and Commentary is supplied, along with indexes of first lines and titles of the poems. It is hoped that this thesis will stimulate further study of the life and work of a unique and intriguing figure.
- Full Text:
- Date Issued: 2006
An evaluation of the Nelson Mandela Metropole as a location to attract investment
- Authors: Nonxuba, Philile Zipho
- Date: 2006
- Subjects: Nelson Mandela Metropolitan Municipality (Eastern Cape, South Africa) , Nelson Mandela Metropolitan Municipality (Eastern Cape, South Africa) -- Economic conditions , Economic development -- South Africa -- Eastern Cape , Manufacturing industries -- South Africa -- Eastern Cape , Business enterprises -- South Africa -- Eastern Cape , Investments -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:973 , http://hdl.handle.net/10962/d1002707 , Nelson Mandela Metropolitan Municipality (Eastern Cape, South Africa) , Nelson Mandela Metropolitan Municipality (Eastern Cape, South Africa) -- Economic conditions , Economic development -- South Africa -- Eastern Cape , Manufacturing industries -- South Africa -- Eastern Cape , Business enterprises -- South Africa -- Eastern Cape , Investments -- South Africa -- Eastern Cape
- Description: The Nelson Mandela Metropole is the largest contributor to the Eastern Cape Province’s economy and its share of the production of the Eastern Cape is about 41, 3 % per annum. This requires that the competitiveness of the Metropole be improved in order to enable it to meet the challenges of the Province. The objective of the GEAR policy strategy places a focus on the leading coastal industrial locations of South Africa. Furthermore, the national government has shifted the responsibility of service delivery to local governments in an effort to reinforce the integrated development planning process in municipalities. To meet those challenges, the Metropole has focused its attention on improving local resources. To enhance the performance of the manufacturing industry of the Metropole, it is necessary to ensure that the Metropole has locational attributes to attract new investment. Such attributes include creation of closely located industries. This will help the firms to engage in competition as well as engage in co-operative activities among themselves. The study employs a variety of theories to highlight the need to enhance productivity of industries in order to attract new investment. These theories include the new (endogenous) growth theory that argues that productivity growth is determined by introduction of new technologies. Such technologies accrue because ideas that contribute to their development are nonrival, and thus their creation has a fixed cost and zero marginal cost. The property of fixed cost in the creation of ideas results in the emergence of increasing returns to scale. The Porter’s Diamond framework is used in the study to take the issue of productivity growth further. Its thrust is that in particular nations some industries experience high productivity growth rates. It further argues that the locational attributes are responsible for these industries in registering high productivity growth levels. These attributes include the creation of advanced resources such as a skilled labour force. The data obtained from the survey of the research on the manufacturing industries forms part of this study. The findings of the survey reveal that although the manufacturing sector of the South African region has registered some significant success, there is still some room for improving its competitiveness. It revealed that development of the local markets through competition and cooperation among the industries would help to render these industries internationally competitive. This study concludes with some recommendations. These recommendations place emphasis on improvement of infrastructure, quality of labour force, and development of the region’s market. In order to carry out the recommendations effectively, government policy has to be repositioned so as to enhance its visibility among the stakeholders in the economy. Of importance is to ensure the promotion of policy that supports geographically concentrated businesses.
- Full Text:
- Date Issued: 2006
- Authors: Nonxuba, Philile Zipho
- Date: 2006
- Subjects: Nelson Mandela Metropolitan Municipality (Eastern Cape, South Africa) , Nelson Mandela Metropolitan Municipality (Eastern Cape, South Africa) -- Economic conditions , Economic development -- South Africa -- Eastern Cape , Manufacturing industries -- South Africa -- Eastern Cape , Business enterprises -- South Africa -- Eastern Cape , Investments -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:973 , http://hdl.handle.net/10962/d1002707 , Nelson Mandela Metropolitan Municipality (Eastern Cape, South Africa) , Nelson Mandela Metropolitan Municipality (Eastern Cape, South Africa) -- Economic conditions , Economic development -- South Africa -- Eastern Cape , Manufacturing industries -- South Africa -- Eastern Cape , Business enterprises -- South Africa -- Eastern Cape , Investments -- South Africa -- Eastern Cape
- Description: The Nelson Mandela Metropole is the largest contributor to the Eastern Cape Province’s economy and its share of the production of the Eastern Cape is about 41, 3 % per annum. This requires that the competitiveness of the Metropole be improved in order to enable it to meet the challenges of the Province. The objective of the GEAR policy strategy places a focus on the leading coastal industrial locations of South Africa. Furthermore, the national government has shifted the responsibility of service delivery to local governments in an effort to reinforce the integrated development planning process in municipalities. To meet those challenges, the Metropole has focused its attention on improving local resources. To enhance the performance of the manufacturing industry of the Metropole, it is necessary to ensure that the Metropole has locational attributes to attract new investment. Such attributes include creation of closely located industries. This will help the firms to engage in competition as well as engage in co-operative activities among themselves. The study employs a variety of theories to highlight the need to enhance productivity of industries in order to attract new investment. These theories include the new (endogenous) growth theory that argues that productivity growth is determined by introduction of new technologies. Such technologies accrue because ideas that contribute to their development are nonrival, and thus their creation has a fixed cost and zero marginal cost. The property of fixed cost in the creation of ideas results in the emergence of increasing returns to scale. The Porter’s Diamond framework is used in the study to take the issue of productivity growth further. Its thrust is that in particular nations some industries experience high productivity growth rates. It further argues that the locational attributes are responsible for these industries in registering high productivity growth levels. These attributes include the creation of advanced resources such as a skilled labour force. The data obtained from the survey of the research on the manufacturing industries forms part of this study. The findings of the survey reveal that although the manufacturing sector of the South African region has registered some significant success, there is still some room for improving its competitiveness. It revealed that development of the local markets through competition and cooperation among the industries would help to render these industries internationally competitive. This study concludes with some recommendations. These recommendations place emphasis on improvement of infrastructure, quality of labour force, and development of the region’s market. In order to carry out the recommendations effectively, government policy has to be repositioned so as to enhance its visibility among the stakeholders in the economy. Of importance is to ensure the promotion of policy that supports geographically concentrated businesses.
- Full Text:
- Date Issued: 2006
An examination of some changes to conventions and culture in selected Xhosa drama
- Authors: Piko, Phindiwe
- Date: 2006
- Subjects: Xhosa drama , Xhosa drama -- Criticism and interpretation
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8468 , http://hdl.handle.net/10948/592 , Xhosa drama , Xhosa drama -- Criticism and interpretation
- Description: This study is about examining some changes to conventions and culture in selected Xhosa drama plays. Conventions are general agreements on social behaviour. They are the customary methods of presenting the elements of the text. There are no strict rules followed in the writing of plays, but there are conventions which vary from one playwright to another and from time to time. Conventions are the devices and the features of a literary work by which its kind can be recognized. Change creates anxiety, uncertainty and stress. Adaptation of culture to some changes plays a role as time passes by. To adapt to change is to be able to manage change. Managing change demands three levels of human response namely: the individual, the group and the cultural or social context. No matter how many changes are brought, different cultures should survive the changes for the nation to remain with its nationality. Industrialisation, urbanisation, religion, politics and economy are the agents of change. Also the social environment, human intelligence and culture play to a greater extent a role in the evolution process. Among other things, this study portrays that the changing times are reflected in Xhosa plays. This is the reflection of how people live, behave or do things, and think as time comes and passes. Pattern of development is traced through time, with the history being involved in the development. Change and development are unavoidable products of human thought. Development is traced from the primitive to the modern way of doing things. A modern or developed society is viewed as being capable of handling a wide variety of internal as well as external pressures. Every time a society manages a new pressure, its modernity improves. Thus, the word ‘modern’ has no time frame, as long as there is a new development, this term ‘modern’ features in. Though the study employs Evolutionary, Structuralist, Stylistic, Formalism and Marxist approaches, the branch of the Semiotic approach, Pragmatism, plays the major role in that the meaning of the texts is one of the semiotic categories. Again Semiotics deals with the writing and the interpretation of the text. Thus communication, adaptation and relating are fundamental to human existence and survival. It is easy to notice that there are old conventions that are continuing in the writings of the new generations of playwrights. This study compares and contrasts the similar conventions of dramatic texts, especially those that have the same theme and meaning. This study shows how the existing dramatic conventions are affected by time, history, economy, education, technology and some other changes. Though the dramatic conventions are said to be continuing, they also adapt to the changing time. There are conventional and cultural aspects that seem to be continuing, but it is a ‘changing continuity’. The developments or changes discussed in this study are in Xhosa drama conventions, those of culture of amaXhosa, dramatic construction of the Xhosa plays and in the interpretation of the plays.
- Full Text:
- Date Issued: 2006
- Authors: Piko, Phindiwe
- Date: 2006
- Subjects: Xhosa drama , Xhosa drama -- Criticism and interpretation
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8468 , http://hdl.handle.net/10948/592 , Xhosa drama , Xhosa drama -- Criticism and interpretation
- Description: This study is about examining some changes to conventions and culture in selected Xhosa drama plays. Conventions are general agreements on social behaviour. They are the customary methods of presenting the elements of the text. There are no strict rules followed in the writing of plays, but there are conventions which vary from one playwright to another and from time to time. Conventions are the devices and the features of a literary work by which its kind can be recognized. Change creates anxiety, uncertainty and stress. Adaptation of culture to some changes plays a role as time passes by. To adapt to change is to be able to manage change. Managing change demands three levels of human response namely: the individual, the group and the cultural or social context. No matter how many changes are brought, different cultures should survive the changes for the nation to remain with its nationality. Industrialisation, urbanisation, religion, politics and economy are the agents of change. Also the social environment, human intelligence and culture play to a greater extent a role in the evolution process. Among other things, this study portrays that the changing times are reflected in Xhosa plays. This is the reflection of how people live, behave or do things, and think as time comes and passes. Pattern of development is traced through time, with the history being involved in the development. Change and development are unavoidable products of human thought. Development is traced from the primitive to the modern way of doing things. A modern or developed society is viewed as being capable of handling a wide variety of internal as well as external pressures. Every time a society manages a new pressure, its modernity improves. Thus, the word ‘modern’ has no time frame, as long as there is a new development, this term ‘modern’ features in. Though the study employs Evolutionary, Structuralist, Stylistic, Formalism and Marxist approaches, the branch of the Semiotic approach, Pragmatism, plays the major role in that the meaning of the texts is one of the semiotic categories. Again Semiotics deals with the writing and the interpretation of the text. Thus communication, adaptation and relating are fundamental to human existence and survival. It is easy to notice that there are old conventions that are continuing in the writings of the new generations of playwrights. This study compares and contrasts the similar conventions of dramatic texts, especially those that have the same theme and meaning. This study shows how the existing dramatic conventions are affected by time, history, economy, education, technology and some other changes. Though the dramatic conventions are said to be continuing, they also adapt to the changing time. There are conventional and cultural aspects that seem to be continuing, but it is a ‘changing continuity’. The developments or changes discussed in this study are in Xhosa drama conventions, those of culture of amaXhosa, dramatic construction of the Xhosa plays and in the interpretation of the plays.
- Full Text:
- Date Issued: 2006
An investigation into the neuroprotective effects of dehydroepiandrosterone
- Authors: Palvie, Stefanie Michelle
- Date: 2006
- Subjects: Aging -- Physiological aspects , Nervous system -- Degeneration -- Treatment , Steroid hormones , Dehydroepiandrosterone , Dehydroepiandrosterone -- Therapeutic use , Neurosciences , Neuroanatomy , Apoptosis , Pineal gland -- Physiology , Neurotoxic agents , Free radicals (Chemistry) -- Physiological effect
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3782 , http://hdl.handle.net/10962/d1003260 , Aging -- Physiological aspects , Nervous system -- Degeneration -- Treatment , Steroid hormones , Dehydroepiandrosterone , Dehydroepiandrosterone -- Therapeutic use , Neurosciences , Neuroanatomy , Apoptosis , Pineal gland -- Physiology , Neurotoxic agents , Free radicals (Chemistry) -- Physiological effect
- Description: Dehydroepiandrosterone, a C-19 steroid, is found endogenously with the highest circulating serum levels. It is converted to important steroids such as the sex hormones oestrogen and testosterone. DHEA has come under the spotlight as a purported “fountain of youth” due to its well-characterised age-related decline. The supplementation of DHEA in both the elderly and those with a pathophysiological deficiency has been shown to be of benefit, particularly with regard to wellbeing and depression. The role of DHEA in the periphery has not been elucidated beyond its role as a precursor hormone in sex steroid biosynthesis, though it has been established as a neuroactive neurosteroid, capable of exerting neuroprotective effects in the brain. Since the importance of free radicals in aging and neurodegeneration is well established, investigations were conducted on the ability of DHEA to inhibit free radical generation or scavenge existing free radicals. DHEA was able to significantly inhibit quinolinic acid-induced lipid peroxidation, a measure of membrane damage, over a range of concentrations, although the reduction did not appear to be dose-dependent. This was observed in both in vitro and in vivo studies. Thus, the ability of a compound to reduce the degree of lipid peroxidation may indicate its value as a neuroprotectant. However, DHEA did not significantly reduce cyanide induced generation of the superoxide free radical, suggesting that DHEA is not an effective free radical scavenger of the superoxide anion and that the reduction in lipid peroxidation does not occur through a scavenging mechanism. Apoptosis is a physiological process which is necessary for development and homeostasis. However, this form of programmed cell death can be initiated through various mechanisms and too much apoptotic cell death results in deleterious effects in the body. DHEA was shown not to induce apoptosis. Even the lowest concentration of DHEA investigated in this thesis shows a remarkable decrease in the degree of apoptosis caused by intrahippocampal chemical insult by the neurotoxin quinolinic acid. Cresyl violet was used to visualise tissue for histological examination which revealed that DHEA is able to preserve the normal healthy morphology of hippocampal cells which have been exposed to quinolinic acid. Cells maintained their integrity and showed little evidence of swelling associated with necrosis. Organ culture studies were performed by assessing the impact of DHEA on several pineal metabolites. The study revealed that DHEA exerted an effect on the metabolism of indoleamines in the pineal gland. Melatonin, the chief pineal hormone, did not appear to be affected while the concentrations of N-acetylserotonin, serotonin and methoxytryptamine showed significant alterations. Thus, the neuroprotective mechanism of DHEA does not appear to be mediated by an increase in the presence of melatonin. The biological importance of metal ions in neurodegeneration is also well established and thus the potential interaction between DHEA and metal ions was considered as a mechanism of action. Spectroscopic and electrochemical analyses were performed to determine whether DHEA is able to interact with metal ions as a ligand. These reveal that DHEA does not form a strong bond with the metals investigated, namely copper (II) and iron (III), but that a weak interaction is evident. These investigations were conducted in a rodent model, which has neither large amounts of endogenous DHEA, nor the enzymatic infrastructure present in humans. Thus, the theory that DHEA exerts its effects through downstream metabolic products is unlikely. However, these investigations reveal that there is merit in the statement that DHEA itself is a neuroprotective molecule, and confirm that the further investigation of DHEA is an advisable strategy in the war against neurodegeneration and aging.
- Full Text:
- Date Issued: 2006
- Authors: Palvie, Stefanie Michelle
- Date: 2006
- Subjects: Aging -- Physiological aspects , Nervous system -- Degeneration -- Treatment , Steroid hormones , Dehydroepiandrosterone , Dehydroepiandrosterone -- Therapeutic use , Neurosciences , Neuroanatomy , Apoptosis , Pineal gland -- Physiology , Neurotoxic agents , Free radicals (Chemistry) -- Physiological effect
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3782 , http://hdl.handle.net/10962/d1003260 , Aging -- Physiological aspects , Nervous system -- Degeneration -- Treatment , Steroid hormones , Dehydroepiandrosterone , Dehydroepiandrosterone -- Therapeutic use , Neurosciences , Neuroanatomy , Apoptosis , Pineal gland -- Physiology , Neurotoxic agents , Free radicals (Chemistry) -- Physiological effect
- Description: Dehydroepiandrosterone, a C-19 steroid, is found endogenously with the highest circulating serum levels. It is converted to important steroids such as the sex hormones oestrogen and testosterone. DHEA has come under the spotlight as a purported “fountain of youth” due to its well-characterised age-related decline. The supplementation of DHEA in both the elderly and those with a pathophysiological deficiency has been shown to be of benefit, particularly with regard to wellbeing and depression. The role of DHEA in the periphery has not been elucidated beyond its role as a precursor hormone in sex steroid biosynthesis, though it has been established as a neuroactive neurosteroid, capable of exerting neuroprotective effects in the brain. Since the importance of free radicals in aging and neurodegeneration is well established, investigations were conducted on the ability of DHEA to inhibit free radical generation or scavenge existing free radicals. DHEA was able to significantly inhibit quinolinic acid-induced lipid peroxidation, a measure of membrane damage, over a range of concentrations, although the reduction did not appear to be dose-dependent. This was observed in both in vitro and in vivo studies. Thus, the ability of a compound to reduce the degree of lipid peroxidation may indicate its value as a neuroprotectant. However, DHEA did not significantly reduce cyanide induced generation of the superoxide free radical, suggesting that DHEA is not an effective free radical scavenger of the superoxide anion and that the reduction in lipid peroxidation does not occur through a scavenging mechanism. Apoptosis is a physiological process which is necessary for development and homeostasis. However, this form of programmed cell death can be initiated through various mechanisms and too much apoptotic cell death results in deleterious effects in the body. DHEA was shown not to induce apoptosis. Even the lowest concentration of DHEA investigated in this thesis shows a remarkable decrease in the degree of apoptosis caused by intrahippocampal chemical insult by the neurotoxin quinolinic acid. Cresyl violet was used to visualise tissue for histological examination which revealed that DHEA is able to preserve the normal healthy morphology of hippocampal cells which have been exposed to quinolinic acid. Cells maintained their integrity and showed little evidence of swelling associated with necrosis. Organ culture studies were performed by assessing the impact of DHEA on several pineal metabolites. The study revealed that DHEA exerted an effect on the metabolism of indoleamines in the pineal gland. Melatonin, the chief pineal hormone, did not appear to be affected while the concentrations of N-acetylserotonin, serotonin and methoxytryptamine showed significant alterations. Thus, the neuroprotective mechanism of DHEA does not appear to be mediated by an increase in the presence of melatonin. The biological importance of metal ions in neurodegeneration is also well established and thus the potential interaction between DHEA and metal ions was considered as a mechanism of action. Spectroscopic and electrochemical analyses were performed to determine whether DHEA is able to interact with metal ions as a ligand. These reveal that DHEA does not form a strong bond with the metals investigated, namely copper (II) and iron (III), but that a weak interaction is evident. These investigations were conducted in a rodent model, which has neither large amounts of endogenous DHEA, nor the enzymatic infrastructure present in humans. Thus, the theory that DHEA exerts its effects through downstream metabolic products is unlikely. However, these investigations reveal that there is merit in the statement that DHEA itself is a neuroprotective molecule, and confirm that the further investigation of DHEA is an advisable strategy in the war against neurodegeneration and aging.
- Full Text:
- Date Issued: 2006
An investigation into the neuroprotective properties of acyclovir
- Authors: Müller, Adrienne Carmel
- Date: 2006
- Subjects: Acyclovir -- Therapeutic use , Acyclovir -- Physiological effect , Nervous system -- Degeneration -- Treatment , Memory disorders -- Treatment , Quinolinic acid
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3776 , http://hdl.handle.net/10962/d1003254 , Acyclovir -- Therapeutic use , Acyclovir -- Physiological effect , Nervous system -- Degeneration -- Treatment , Memory disorders -- Treatment , Quinolinic acid
- Description: Accumulating evidence suggests that quinolinic acid has a role to play in disorders involving impairment of learning and memory. In the present study, the effect of the guanosine analogue antiherpetic, acyclovir, on quinolinic acid-induced spatial memory deficits was investigated, as well as some of the mechanisms which underlie this effect. Behavioural studies using a Morris water maze show that post-treatment of rats with acyclovir significantly improves spatial memory deficits induced by intrahippocampal injections of quinolinic acid. Histological analysis of the hippocampi show that the effect of acyclovir is related to its ability to alleviate quinolinic acid-induced necrotic cell death, through interference with some of the mechanisms of neurodegeneration. However, acyclovir is unable to alter a quinolinic acid-induced increase in glutamate release in the rat hippocampus, even though it alleviates quinolinic acid induced oxidative stress by scavenging the superoxide anion in vitro and in vivo in whole rat brain and hippocampus respectively. Due to the inverse relationship which exists between superoxide anion and glutathione levels, acyclovir also curtails the quinolinic acid-induced decrease in hippocampal glutathione levels. Acyclovir suppresses quinolinic acid-induced lipid peroxidation in vitro and in vivo, in whole rat brain and hippocampus respectively, through its alleviation of oxidative stress and possibly through the binding of iron (II) and / or iron (III), preventing the participation and redox recycling of iron (II) in the Fenton reaction, which quinolinic acid is thought to enhance by weak binding of ferrous ions. This argument is further strengthened by the ability of the drug to suppress iron (II)-induced lipid peroxidation in vitro directly. Inorganic studies including ultraviolet and visible spectroscopy, electrochemistry and the ferrozine assay show that acyclovir binds to iron (II) and iron (III) and that quinolinic acid forms an easily oxidisable association with iron (II). Acyclovir inhibits the endogenous biosynthesis of quinolinic acid by inhibiting the activity of liver tryptophan-2,3-dioxygenase, intestinal indoleamine-2,3-dioxygenase and rat liver 3-hydroxyanthranillic acid oxygenase in vitro and in vivo, possibly through competitive inhibition of haeme, scavenging of superoxide anion and binding of iron (II) respectively. An inverse relationship exists between tryptophan-2,3-dioxygenase activity and brain serotonin levels. Acyclovir administration in rats induces a rise in forebrain serotonin and 5-hydroxyindole acetic acid and reduces the turnover of forebrain serotonin to 5-hydroxyindole acetic acid. Furthermore, it shows that acyclovir does not alter forebrain norepinephrine levels. The results of the pineal indole metabolism study show that acyclovir increases 5-hydroxytryptophol, N-acetylserotonin and the neurohormone melatonin, but decreases 5-hydroxyindole acetic acid. The results of this study show that acyclovir has some neuroprotective properties which may make it useful in the alleviation of the anomalous neurobiology in neurodegenerative disorders.
- Full Text:
- Date Issued: 2006
- Authors: Müller, Adrienne Carmel
- Date: 2006
- Subjects: Acyclovir -- Therapeutic use , Acyclovir -- Physiological effect , Nervous system -- Degeneration -- Treatment , Memory disorders -- Treatment , Quinolinic acid
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3776 , http://hdl.handle.net/10962/d1003254 , Acyclovir -- Therapeutic use , Acyclovir -- Physiological effect , Nervous system -- Degeneration -- Treatment , Memory disorders -- Treatment , Quinolinic acid
- Description: Accumulating evidence suggests that quinolinic acid has a role to play in disorders involving impairment of learning and memory. In the present study, the effect of the guanosine analogue antiherpetic, acyclovir, on quinolinic acid-induced spatial memory deficits was investigated, as well as some of the mechanisms which underlie this effect. Behavioural studies using a Morris water maze show that post-treatment of rats with acyclovir significantly improves spatial memory deficits induced by intrahippocampal injections of quinolinic acid. Histological analysis of the hippocampi show that the effect of acyclovir is related to its ability to alleviate quinolinic acid-induced necrotic cell death, through interference with some of the mechanisms of neurodegeneration. However, acyclovir is unable to alter a quinolinic acid-induced increase in glutamate release in the rat hippocampus, even though it alleviates quinolinic acid induced oxidative stress by scavenging the superoxide anion in vitro and in vivo in whole rat brain and hippocampus respectively. Due to the inverse relationship which exists between superoxide anion and glutathione levels, acyclovir also curtails the quinolinic acid-induced decrease in hippocampal glutathione levels. Acyclovir suppresses quinolinic acid-induced lipid peroxidation in vitro and in vivo, in whole rat brain and hippocampus respectively, through its alleviation of oxidative stress and possibly through the binding of iron (II) and / or iron (III), preventing the participation and redox recycling of iron (II) in the Fenton reaction, which quinolinic acid is thought to enhance by weak binding of ferrous ions. This argument is further strengthened by the ability of the drug to suppress iron (II)-induced lipid peroxidation in vitro directly. Inorganic studies including ultraviolet and visible spectroscopy, electrochemistry and the ferrozine assay show that acyclovir binds to iron (II) and iron (III) and that quinolinic acid forms an easily oxidisable association with iron (II). Acyclovir inhibits the endogenous biosynthesis of quinolinic acid by inhibiting the activity of liver tryptophan-2,3-dioxygenase, intestinal indoleamine-2,3-dioxygenase and rat liver 3-hydroxyanthranillic acid oxygenase in vitro and in vivo, possibly through competitive inhibition of haeme, scavenging of superoxide anion and binding of iron (II) respectively. An inverse relationship exists between tryptophan-2,3-dioxygenase activity and brain serotonin levels. Acyclovir administration in rats induces a rise in forebrain serotonin and 5-hydroxyindole acetic acid and reduces the turnover of forebrain serotonin to 5-hydroxyindole acetic acid. Furthermore, it shows that acyclovir does not alter forebrain norepinephrine levels. The results of the pineal indole metabolism study show that acyclovir increases 5-hydroxytryptophol, N-acetylserotonin and the neurohormone melatonin, but decreases 5-hydroxyindole acetic acid. The results of this study show that acyclovir has some neuroprotective properties which may make it useful in the alleviation of the anomalous neurobiology in neurodegenerative disorders.
- Full Text:
- Date Issued: 2006
An investigation into the neuroprotective properties of the non-steroidal anti-inflammatory agents tolmetin, sulindac and turmeric
- Authors: Dairam, Amichand
- Date: 2006
- Subjects: Nonsteroidal anti-inflammatory agents Antioxidants Tolmetin -- Therapeutic use Sulindac -- Therapeutic use Turmeric -- Therapeutic use Nervous system -- Degeneration -- Prevention Alzheimer's disease
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3752 , http://hdl.handle.net/10962/d1003230
- Description: Accumulating evidence suggests that anti-inflammatory agents and antioxidants have neuroprotective properties and may be beneficial in the treatment of neurodegenerative disorders. In the present study, the possible neuroprotective properties of tolmetin, sulindac and turmeric were investigated. The antioxidant effects of tolmetin and sulindac were determined by inducing free radical generation with quinolinic acid (QA), cyanide or iron (II) in rat brain homogenates or primary hippocampal neurons. Tolmetin and sulindac significantly reduce lipid peroxidation and scavenge the superoxide anion. Metal binding studies were conducted to determine whether metal chelation is a possible mechanism through which these agents reduce QA and iron (II)-induced lipid peroxidation. UV/VIS, infrared spectroscopy as well as electrochemical studies show that both agents bind to iron (II) and/or iron (III). Histological examination of the hippocampus showed that pre-treatment of animals with tolmetin or sulindac offers protection against intrahippocampal injections of QA. These agents also attenuate QA-induced apoptosis and reduce the loss of neurons in the hippocampus. The co-incubation of primary hippocampal neurons with the NSAIDS also enhanced cell viability which is significantly reduced by QA. Behavioural studies using a water maze showed that the treatment of animals after QA-induced neurotoxicity reduces QA-induced spatial memory loss. Tolmetin and sulindac also reduced glutathione depletion and protein oxidation in rat hippocampus. Both NSAIDS inhibit liver tryptophan 2,3-dioxygenase activity in vitro and in vivo and subsequently increased hippocampal serotonin levels. However, both NSAIDS also reduce dopamine levels in rat striatum. Tolmetin but not sulindac increased the synthesis of melatonin by the pineal gland. The active components of turmeric known as the curcuminoids were separated using preparative thin layer chromatography (TLC). The purity was confirmed by TLC, NMR and mass spectrometry. The environmental toxin lead, induces lipid peroxidation and reduces primary hippocampal neuronal viability. The co-incubation of the neurons with the curcuminoids significantly reduces lead-induced lipid peroxidation and enhances neuronal cell viability in the presence of lead. Lead-induced spatial memory deficit is also attenuated with curcumin, demethoxycurcumin but not bisdemethoxycurcumin. The curcuminoids also reduce lead-induced hippocampal glutathione depletion and protein oxidation. Metal binding studies show that the curcuminoids bind to lead and is another possible mechanism through which the curcuminoids reduce lead-induced neurotoxicity. The findings of this study indicate a possible role of tolmetin, sulindac and turmeric in neurodegenerative disorders such as Alzheimer’s disease. However, tolmetin and sulindac reduce dopamine levels.
- Full Text:
- Date Issued: 2006
- Authors: Dairam, Amichand
- Date: 2006
- Subjects: Nonsteroidal anti-inflammatory agents Antioxidants Tolmetin -- Therapeutic use Sulindac -- Therapeutic use Turmeric -- Therapeutic use Nervous system -- Degeneration -- Prevention Alzheimer's disease
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3752 , http://hdl.handle.net/10962/d1003230
- Description: Accumulating evidence suggests that anti-inflammatory agents and antioxidants have neuroprotective properties and may be beneficial in the treatment of neurodegenerative disorders. In the present study, the possible neuroprotective properties of tolmetin, sulindac and turmeric were investigated. The antioxidant effects of tolmetin and sulindac were determined by inducing free radical generation with quinolinic acid (QA), cyanide or iron (II) in rat brain homogenates or primary hippocampal neurons. Tolmetin and sulindac significantly reduce lipid peroxidation and scavenge the superoxide anion. Metal binding studies were conducted to determine whether metal chelation is a possible mechanism through which these agents reduce QA and iron (II)-induced lipid peroxidation. UV/VIS, infrared spectroscopy as well as electrochemical studies show that both agents bind to iron (II) and/or iron (III). Histological examination of the hippocampus showed that pre-treatment of animals with tolmetin or sulindac offers protection against intrahippocampal injections of QA. These agents also attenuate QA-induced apoptosis and reduce the loss of neurons in the hippocampus. The co-incubation of primary hippocampal neurons with the NSAIDS also enhanced cell viability which is significantly reduced by QA. Behavioural studies using a water maze showed that the treatment of animals after QA-induced neurotoxicity reduces QA-induced spatial memory loss. Tolmetin and sulindac also reduced glutathione depletion and protein oxidation in rat hippocampus. Both NSAIDS inhibit liver tryptophan 2,3-dioxygenase activity in vitro and in vivo and subsequently increased hippocampal serotonin levels. However, both NSAIDS also reduce dopamine levels in rat striatum. Tolmetin but not sulindac increased the synthesis of melatonin by the pineal gland. The active components of turmeric known as the curcuminoids were separated using preparative thin layer chromatography (TLC). The purity was confirmed by TLC, NMR and mass spectrometry. The environmental toxin lead, induces lipid peroxidation and reduces primary hippocampal neuronal viability. The co-incubation of the neurons with the curcuminoids significantly reduces lead-induced lipid peroxidation and enhances neuronal cell viability in the presence of lead. Lead-induced spatial memory deficit is also attenuated with curcumin, demethoxycurcumin but not bisdemethoxycurcumin. The curcuminoids also reduce lead-induced hippocampal glutathione depletion and protein oxidation. Metal binding studies show that the curcuminoids bind to lead and is another possible mechanism through which the curcuminoids reduce lead-induced neurotoxicity. The findings of this study indicate a possible role of tolmetin, sulindac and turmeric in neurodegenerative disorders such as Alzheimer’s disease. However, tolmetin and sulindac reduce dopamine levels.
- Full Text:
- Date Issued: 2006
An investigation of integrated development planning (IDP) as a mechanism for poverty alleviation in Grahamstown in the Makana Municipality, Eastern Cape, South Africa
- Authors: Alebiosu, Olumide Ademola
- Date: 2006
- Subjects: Makana Municipality , Local government -- South Africa -- Eastern Cape , Poor -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Poverty -- Government policy -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4841 , http://hdl.handle.net/10962/d1005517 , Makana Municipality , Local government -- South Africa -- Eastern Cape , Poor -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Poverty -- Government policy -- South Africa -- Eastern Cape
- Description: Poverty among individuals, households or communities is not a static condition. There are many factors which contribute to its causes and depth. In South Africa the economic gaps imposed by the previous apartheid government aggravated economic inequalities and caused considerable disparities, which has resulted in high unemployment rates. Inequalities were also manifest in the neglect of infrastructural and service provision as well in the effective absence of independent governance among some race group. This led to a call for pro-active initiatives by the post-1994 democratic government to remedy the living condition of the previously disadvantaged people. As part of its poverty relief drive the South African government has embarked on a series of developmental initiatives in bringing infrastructure related services to the poor and to reduce the enormous prevailing backlog, with the aim of increasing community participation, improving service delivery and promoting the upliftment of the lives of poor people through the medium of local governance. This study investigated the Integrated Development Planning, which has been undertaken in Grahamstown in the Makana Municipality in the Eastern Cape to respond to the prevailing poverty and underdevelopment among the poor communities. Relying on their developmental mandate to initiate and co-ordinate all development activities within their area of jurisdiction through the IDP, the Makana Municipality has drawn up a development strategic plan in conjunction with the local communities and with other stakeholders and organisations to identify and assess development backlogs within the communities with the aim of addressing such backlogs. This study revealed from the interviews conducted with some municipal personnel and questionnaires administered to sampled residents of Grahamstown that some faces of poverty, such as unemployment and lack of access to some of the most basic of infrastructure such as, sanitation facilities, water, electricity, formal house, education, security and recreation facilities are apparent in Grahamstown. However, the Makana Municipality through, the IDP has achieved some notable feats in the provision of providing some of the basic amenities such as water, housing, electricity and sanitation albeit at a slow rate. The mechanism of delivery is hampered by bureaucratic settings within government and the ambiguity attached to some of the projects. The service and infrastructural developments targeted towards the poor and the involvement of communities in the affairs of the local government might be seen as a partially panacea for poverty alleviation in South Africa. However the capacity of the local governments to effectively carry out this developmental challenge assignment might be a new twist in the developmental challenge facing local governments in South Africa. The thesis provides an overview of the Makana Municipality IDP and the degree to which is serving as one mechanism to address poverty in the Grahamstown urban area
- Full Text:
- Date Issued: 2006
- Authors: Alebiosu, Olumide Ademola
- Date: 2006
- Subjects: Makana Municipality , Local government -- South Africa -- Eastern Cape , Poor -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Poverty -- Government policy -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4841 , http://hdl.handle.net/10962/d1005517 , Makana Municipality , Local government -- South Africa -- Eastern Cape , Poor -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Poverty -- Government policy -- South Africa -- Eastern Cape
- Description: Poverty among individuals, households or communities is not a static condition. There are many factors which contribute to its causes and depth. In South Africa the economic gaps imposed by the previous apartheid government aggravated economic inequalities and caused considerable disparities, which has resulted in high unemployment rates. Inequalities were also manifest in the neglect of infrastructural and service provision as well in the effective absence of independent governance among some race group. This led to a call for pro-active initiatives by the post-1994 democratic government to remedy the living condition of the previously disadvantaged people. As part of its poverty relief drive the South African government has embarked on a series of developmental initiatives in bringing infrastructure related services to the poor and to reduce the enormous prevailing backlog, with the aim of increasing community participation, improving service delivery and promoting the upliftment of the lives of poor people through the medium of local governance. This study investigated the Integrated Development Planning, which has been undertaken in Grahamstown in the Makana Municipality in the Eastern Cape to respond to the prevailing poverty and underdevelopment among the poor communities. Relying on their developmental mandate to initiate and co-ordinate all development activities within their area of jurisdiction through the IDP, the Makana Municipality has drawn up a development strategic plan in conjunction with the local communities and with other stakeholders and organisations to identify and assess development backlogs within the communities with the aim of addressing such backlogs. This study revealed from the interviews conducted with some municipal personnel and questionnaires administered to sampled residents of Grahamstown that some faces of poverty, such as unemployment and lack of access to some of the most basic of infrastructure such as, sanitation facilities, water, electricity, formal house, education, security and recreation facilities are apparent in Grahamstown. However, the Makana Municipality through, the IDP has achieved some notable feats in the provision of providing some of the basic amenities such as water, housing, electricity and sanitation albeit at a slow rate. The mechanism of delivery is hampered by bureaucratic settings within government and the ambiguity attached to some of the projects. The service and infrastructural developments targeted towards the poor and the involvement of communities in the affairs of the local government might be seen as a partially panacea for poverty alleviation in South Africa. However the capacity of the local governments to effectively carry out this developmental challenge assignment might be a new twist in the developmental challenge facing local governments in South Africa. The thesis provides an overview of the Makana Municipality IDP and the degree to which is serving as one mechanism to address poverty in the Grahamstown urban area
- Full Text:
- Date Issued: 2006
Atlas of Southern African freshwater fishes
- Scott, L E P, Skelton, P H, Booth, A J, Verheust, L, Dooley, J, Harris, R
- Authors: Scott, L E P , Skelton, P H , Booth, A J , Verheust, L , Dooley, J , Harris, R
- Date: 2006
- Subjects: Freshwater fishes -- South Africa , Freshwater fishes -- Africa, Southern , Freshwater fishes -- Africa, Southern -- Identification
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/199097 , vital:46068
- Description: Worldwide concern over the loss of biological diversity during the past decade has provided the impetus for the development of biodiversity databases and biological atlas projects in order to make information accessible. This Geographic Information Systems-based Atlas of Southern African Freshwater Fishes is the first of its kind for fishes in Africa and, as such, can be seen as contributing towards this global trend of consolidation and refining of biodiversity information. The technological advances made in computing systems over the past decade have facilitated the extraction and utilisation of much of the untapped information in museum collections. The size of most natural history collections had tended to prohibit any comprehensive applied use of the specimens on a large scale, but the computerisation of these collections has proved to be an invaluable tool to systematists, taxonomists and ecologists, by allowing faster and more efficient access to specimen record data of interest. With the automation of many biological databases, public attention has been brought to their potential contribution to biodiversity studies and conservation efforts around the world. The application of Geographic Information Systems (GIS) in the field of southern African ichthyology and freshwater fisheries management has been limited, until now, by the lack of good-quality, comprehensive data sets, adequate budgets and GIS skills. Sophisticated investigations of fish distributions for conservation and management purposes need a powerful computing platform. This is realised in the Atlas of Southern African Freshwater Fishes, which has been tested and used for biogeographic analysis in the southern African region. The atlas was established using specimen records from nineteen museum collections, and currently contains 35145 geo-referenced specimen records, collected between 1885 and 2000 in eleven countries of southern Africa, which represent 254 fish species from 37 families. The Atlas of Southern African Freshwater Fishes was developed with the objective of being a dynamic, powerful information system. It has been constructed to allow the import of additional information at any stage, and it is designed to be as accessible and as user-friendly as current technology allows. This Atlas is the product of the successful integration of fish distributional information with other spatial data layers to provide a new tool for the study of freshwater fish in southern Africa.
- Full Text:
- Date Issued: 2006
- Authors: Scott, L E P , Skelton, P H , Booth, A J , Verheust, L , Dooley, J , Harris, R
- Date: 2006
- Subjects: Freshwater fishes -- South Africa , Freshwater fishes -- Africa, Southern , Freshwater fishes -- Africa, Southern -- Identification
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/199097 , vital:46068
- Description: Worldwide concern over the loss of biological diversity during the past decade has provided the impetus for the development of biodiversity databases and biological atlas projects in order to make information accessible. This Geographic Information Systems-based Atlas of Southern African Freshwater Fishes is the first of its kind for fishes in Africa and, as such, can be seen as contributing towards this global trend of consolidation and refining of biodiversity information. The technological advances made in computing systems over the past decade have facilitated the extraction and utilisation of much of the untapped information in museum collections. The size of most natural history collections had tended to prohibit any comprehensive applied use of the specimens on a large scale, but the computerisation of these collections has proved to be an invaluable tool to systematists, taxonomists and ecologists, by allowing faster and more efficient access to specimen record data of interest. With the automation of many biological databases, public attention has been brought to their potential contribution to biodiversity studies and conservation efforts around the world. The application of Geographic Information Systems (GIS) in the field of southern African ichthyology and freshwater fisheries management has been limited, until now, by the lack of good-quality, comprehensive data sets, adequate budgets and GIS skills. Sophisticated investigations of fish distributions for conservation and management purposes need a powerful computing platform. This is realised in the Atlas of Southern African Freshwater Fishes, which has been tested and used for biogeographic analysis in the southern African region. The atlas was established using specimen records from nineteen museum collections, and currently contains 35145 geo-referenced specimen records, collected between 1885 and 2000 in eleven countries of southern Africa, which represent 254 fish species from 37 families. The Atlas of Southern African Freshwater Fishes was developed with the objective of being a dynamic, powerful information system. It has been constructed to allow the import of additional information at any stage, and it is designed to be as accessible and as user-friendly as current technology allows. This Atlas is the product of the successful integration of fish distributional information with other spatial data layers to provide a new tool for the study of freshwater fish in southern Africa.
- Full Text:
- Date Issued: 2006
Between the 'sectional' and the 'national' : oil, grassroots discontent and civic discourse in Nigeria
- Authors: Akpan, Wilson Ndarake
- Date: 2006
- Subjects: Petroleum industry and trade -- Nigeria Revenue -- Nigeria Nigeria -- Social conditions Nigeria -- Economic conditions Niger River Delta (Nigeria) -- Environmental conditions
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3294 , http://hdl.handle.net/10962/d1003082
- Description: This thesis examines the social character of petroleum-related grassroots struggles in Nigeria’s oil-producing region. It does this against the background of the dominant scholarly narratives that portray the struggles as: a) a disguised pursuit of an ethnic/sectional agenda, b) a 'minority rights' project, and c) a minority province’s protest against 'selective' environmental 'victimisation' by the majority ethnic nationalities. While the dominant scholarly analyses of the struggles are based on the activities of the better known activist organisations operating in the oil region, this thesis focuses primarily on the everyday 'grammar' of discontent and lived worlds of ordinary people vis-à-vis upstream petroleum operations and petroleum resource utilisation. The aim has been to gain an understanding of the forces driving community struggles in the oil region and their wider societal significance. Examined alongside the narratives of ordinary people are the legal/institutional framework for upstream petroleum operations and the operational practices of the oil-producing companies. Using primary data obtained through ethnography, focus group discussions, in-depth interviews and visual sociology, as well as relevant secondary data, the researcher constructs a discourse matrix, showing how grassroots narratives in selected oilproducing communities intersect with contemporary civic discourses in the wider Nigerian context. The thesis highlights the theoretical and policy difficulties that arise when the social basis of petroleum-related grassroots struggles and ordinary people’s narratives are explained using an essentialist idiom. It reveals, above all, the conditions under which so-called 'locale-specific' struggles in a multi-ethnic, oil-rich African country can become a campaign for the emancipation of ordinary people in the wider society. This research extends the existing knowledge on citizen mobilisation, extractive capitalism, transnational corporate behaviour, and Nigeria’s contemporary development predicament. It sheds light on some of the processes through which ordinary people are forcing upon the state a change agenda that could drive the country along a more socially sensitive development and democratisation trajectory.
- Full Text:
- Date Issued: 2006
- Authors: Akpan, Wilson Ndarake
- Date: 2006
- Subjects: Petroleum industry and trade -- Nigeria Revenue -- Nigeria Nigeria -- Social conditions Nigeria -- Economic conditions Niger River Delta (Nigeria) -- Environmental conditions
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3294 , http://hdl.handle.net/10962/d1003082
- Description: This thesis examines the social character of petroleum-related grassroots struggles in Nigeria’s oil-producing region. It does this against the background of the dominant scholarly narratives that portray the struggles as: a) a disguised pursuit of an ethnic/sectional agenda, b) a 'minority rights' project, and c) a minority province’s protest against 'selective' environmental 'victimisation' by the majority ethnic nationalities. While the dominant scholarly analyses of the struggles are based on the activities of the better known activist organisations operating in the oil region, this thesis focuses primarily on the everyday 'grammar' of discontent and lived worlds of ordinary people vis-à-vis upstream petroleum operations and petroleum resource utilisation. The aim has been to gain an understanding of the forces driving community struggles in the oil region and their wider societal significance. Examined alongside the narratives of ordinary people are the legal/institutional framework for upstream petroleum operations and the operational practices of the oil-producing companies. Using primary data obtained through ethnography, focus group discussions, in-depth interviews and visual sociology, as well as relevant secondary data, the researcher constructs a discourse matrix, showing how grassroots narratives in selected oilproducing communities intersect with contemporary civic discourses in the wider Nigerian context. The thesis highlights the theoretical and policy difficulties that arise when the social basis of petroleum-related grassroots struggles and ordinary people’s narratives are explained using an essentialist idiom. It reveals, above all, the conditions under which so-called 'locale-specific' struggles in a multi-ethnic, oil-rich African country can become a campaign for the emancipation of ordinary people in the wider society. This research extends the existing knowledge on citizen mobilisation, extractive capitalism, transnational corporate behaviour, and Nigeria’s contemporary development predicament. It sheds light on some of the processes through which ordinary people are forcing upon the state a change agenda that could drive the country along a more socially sensitive development and democratisation trajectory.
- Full Text:
- Date Issued: 2006
Converts and conservatives: missionary representations of African rulers in the Northern Transvaal, c. 1870-1900
- Authors: Kirkaldy, Alan , Kriel, Lize
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6146 , http://hdl.handle.net/10962/d1003715 , http://www2.unil.ch/lefaitmissionnaire/pages/tables_publi/lfm18_tbl.htm
- Description: During the second half of the nineteenth century, the Berlin Mission Society made strenuous efforts to convert the rulers of the people in whose areas they worked in the Northern Transvaal. In this they were largely unsuccessful. This raises questions about what forces influenced success and failure, and how the missionaries interpreted this. In this article, we interrogate the Berlin Missions Society’s accounts of the life and death of August Makhahane, a ruler of the Vhavenda who converted to Christianity, against the background of the accounts dealing with Matsiokwane Leboho, a ruler of the Bahananwa who did not convert. Through such a comparison, we aim at exploring the contrasted ways in which the Berlin missionaries reported about the two rulers.
- Full Text:
- Date Issued: 2006
- Authors: Kirkaldy, Alan , Kriel, Lize
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6146 , http://hdl.handle.net/10962/d1003715 , http://www2.unil.ch/lefaitmissionnaire/pages/tables_publi/lfm18_tbl.htm
- Description: During the second half of the nineteenth century, the Berlin Mission Society made strenuous efforts to convert the rulers of the people in whose areas they worked in the Northern Transvaal. In this they were largely unsuccessful. This raises questions about what forces influenced success and failure, and how the missionaries interpreted this. In this article, we interrogate the Berlin Missions Society’s accounts of the life and death of August Makhahane, a ruler of the Vhavenda who converted to Christianity, against the background of the accounts dealing with Matsiokwane Leboho, a ruler of the Bahananwa who did not convert. Through such a comparison, we aim at exploring the contrasted ways in which the Berlin missionaries reported about the two rulers.
- Full Text:
- Date Issued: 2006