Gender and Racial Stereotyping in Rape Coverage: An analysis of rape coverage in a South African newspaper, Grocott’s Mail
- Authors: Bonnes, Stephanie M
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/453321 , vital:75245 , https://doi.org/10.1080/14680777.2011.623170
- Description: This article uses critical discourse analysis to discuss and analyse articles about rape that appeared in a South African newspaper, Grocott's Mail, between 14 October, 2008 and 29 October, 2009. Drawing on existing literature on “rape myths” in media coverage of rape, this article argues that Grocott's Mail perpetuates racial and gender stereotypes through the way in which it reports on rape. While not all of the articles included in the analysis use rape myths, most use one or more when discussing rape incidents. Specifically, Grocott's Mail tends to use rape myths that blame the victim for the rape and de-emphasise the role of the perpetrator in the rape.
- Full Text:
- Date Issued: 2011
- Authors: Bonnes, Stephanie M
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/453321 , vital:75245 , https://doi.org/10.1080/14680777.2011.623170
- Description: This article uses critical discourse analysis to discuss and analyse articles about rape that appeared in a South African newspaper, Grocott's Mail, between 14 October, 2008 and 29 October, 2009. Drawing on existing literature on “rape myths” in media coverage of rape, this article argues that Grocott's Mail perpetuates racial and gender stereotypes through the way in which it reports on rape. While not all of the articles included in the analysis use rape myths, most use one or more when discussing rape incidents. Specifically, Grocott's Mail tends to use rape myths that blame the victim for the rape and de-emphasise the role of the perpetrator in the rape.
- Full Text:
- Date Issued: 2011
Geographic variation in the trophic ecology of an avian rocky shore predator, the African black oystercatcher, along the southern African coastline
- Kohler, Sophie A, Connan, Maëlle, Hill, Jaclyn M, Mablouké, Cécile, Bonnevie, Bo T, Ludynia, Katrin, Kemper, Jessica, Huisamen, Johan, Underhill, Leslie G, Cherel, Yves, McQuaid, Christopher D, Jaquemet, Sébastien
- Authors: Kohler, Sophie A , Connan, Maëlle , Hill, Jaclyn M , Mablouké, Cécile , Bonnevie, Bo T , Ludynia, Katrin , Kemper, Jessica , Huisamen, Johan , Underhill, Leslie G , Cherel, Yves , McQuaid, Christopher D , Jaquemet, Sébastien
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/444576 , vital:74252 , https://doi.org/10.3354/meps09215
- Description: The reflection of baseline isotopic signals along marine food chains up to higher trophic levels has been widely used in the study of oceanic top predators but rarely for intertidal predators. We investigated variation in the δ 13 C and δ 15 N ratios of a sedentary, rocky shore predator, the African black oystercatcher Haematopus moquini, over~ 2000 km of the southern African coastline, which is characterized by strong biogeographic patterns in primary productivity and intertidal communities. Blood and feathers from breeding adults and chicks and muscle tissues from primary prey items (mussels and limpets) were sampled between southern Namibia and the southeast coast of South Africa. 15 N enrichment was observed between the southeast and west coasts in oystercatcher tissues and their prey, mirroring an isotope shift between the oligotrophic Agulhas Current on the east coast and the eutrophic Benguela upwelling system on the west coast.
- Full Text:
- Date Issued: 2011
- Authors: Kohler, Sophie A , Connan, Maëlle , Hill, Jaclyn M , Mablouké, Cécile , Bonnevie, Bo T , Ludynia, Katrin , Kemper, Jessica , Huisamen, Johan , Underhill, Leslie G , Cherel, Yves , McQuaid, Christopher D , Jaquemet, Sébastien
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/444576 , vital:74252 , https://doi.org/10.3354/meps09215
- Description: The reflection of baseline isotopic signals along marine food chains up to higher trophic levels has been widely used in the study of oceanic top predators but rarely for intertidal predators. We investigated variation in the δ 13 C and δ 15 N ratios of a sedentary, rocky shore predator, the African black oystercatcher Haematopus moquini, over~ 2000 km of the southern African coastline, which is characterized by strong biogeographic patterns in primary productivity and intertidal communities. Blood and feathers from breeding adults and chicks and muscle tissues from primary prey items (mussels and limpets) were sampled between southern Namibia and the southeast coast of South Africa. 15 N enrichment was observed between the southeast and west coasts in oystercatcher tissues and their prey, mirroring an isotope shift between the oligotrophic Agulhas Current on the east coast and the eutrophic Benguela upwelling system on the west coast.
- Full Text:
- Date Issued: 2011
Going against the tide: seeking regulations for private military/security companies in a globalized world
- Authors: Juma, Laurence
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/128822 , vital:36163 , https://hdl.handle.net/10520/EJC85398
- Description: This article discusses the role of privatization of security in Africa, but its focus is on private military and security companies (PMSCs). The article proceeds on the basis that there is need for effective regulatory frameworks for PMSCs that operate in conflict zones of Africa. Thus, it begins by appraising the existing normative standards at the international, regional and domestic level that apply to these companies, and thereafter, identifies their shortcomings in light of the prevailing security conditions within the continent. The article then posits broad theoretical imperatives for designing a more effective regulatory framework for PMSCs and concludes by proposing the establishment an overarching continental regime constructed on the basis of the suggested imperatives.
- Full Text: false
- Date Issued: 2011
- Authors: Juma, Laurence
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/128822 , vital:36163 , https://hdl.handle.net/10520/EJC85398
- Description: This article discusses the role of privatization of security in Africa, but its focus is on private military and security companies (PMSCs). The article proceeds on the basis that there is need for effective regulatory frameworks for PMSCs that operate in conflict zones of Africa. Thus, it begins by appraising the existing normative standards at the international, regional and domestic level that apply to these companies, and thereafter, identifies their shortcomings in light of the prevailing security conditions within the continent. The article then posits broad theoretical imperatives for designing a more effective regulatory framework for PMSCs and concludes by proposing the establishment an overarching continental regime constructed on the basis of the suggested imperatives.
- Full Text: false
- Date Issued: 2011
Good Chemistry
- Authors: Grange, Helen
- Date: 2011
- Subjects: Nyokong, Tebello , Africa-Arab State 2009 Unesco-L'Oreal Award for Women in Science
- Language: English
- Type: Article , text
- Identifier: vital:7185 , http://hdl.handle.net/10962/d1006276 , Nyokong, Tebello , Africa-Arab State 2009 Unesco-L'Oreal Award for Women in Science
- Description: Helen Grange profiles four women who've fearlessly taken on the complex predominantly male-dominated field of science.
- Full Text:
- Date Issued: 2011
- Authors: Grange, Helen
- Date: 2011
- Subjects: Nyokong, Tebello , Africa-Arab State 2009 Unesco-L'Oreal Award for Women in Science
- Language: English
- Type: Article , text
- Identifier: vital:7185 , http://hdl.handle.net/10962/d1006276 , Nyokong, Tebello , Africa-Arab State 2009 Unesco-L'Oreal Award for Women in Science
- Description: Helen Grange profiles four women who've fearlessly taken on the complex predominantly male-dominated field of science.
- Full Text:
- Date Issued: 2011
Heritage–A conceptually evolving and dissonant phenomenon: Implications for heritage management and education practices in post-colonial Southern Africa
- Authors: Zazu, Clayton
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/387208 , vital:68215 , xlink:href="https://www.ajol.info/index.php/sajee/article/view/122250"
- Description: This conceptual paper is based on experiences and insights which have emerged from my quest to develop a conceptual framework for working with the term ‘heritage’ within an education for sustainable development study that I am currently conducting. Of specific interest to me, and having potential to improve the relevance and quality of heritage education in southern Africa, given the region’s inherent cultural diversity and colonial history, is the need for ‘heritage construct inclusivity’ within the processes constituting heritage education practices. Working around this broad research goal, I therefore needed to be clear about what I mean or refer to as heritage. I realised, however, how elusive and conceptually problematic the term ‘heritage’ is. I therefore, drawing from literature and experiences gained during field observations and focus group interviews, came up with the idea of working with three viewpoints of heritage. Drawing on real life cases I argue that current heritage management and education practices’ failure to recognise and respect the evolving, interconnectedness and multi layered nature of heritage, partly explain the same practices’ lack of relevance and agency to enhance the sustainable management of local heritage resources. I also suggest a few ideas which heritage educators in the context of post-colonial southern Africa may need to consider in their everyday heritage education practices. I also introduce the notion of conceptualising heritage as ‘cultural landscapes’, within which the evolving, dissonant and interconnected nature of heritage, and associated heritage constructs, may be reconciled.
- Full Text:
- Date Issued: 2011
- Authors: Zazu, Clayton
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/387208 , vital:68215 , xlink:href="https://www.ajol.info/index.php/sajee/article/view/122250"
- Description: This conceptual paper is based on experiences and insights which have emerged from my quest to develop a conceptual framework for working with the term ‘heritage’ within an education for sustainable development study that I am currently conducting. Of specific interest to me, and having potential to improve the relevance and quality of heritage education in southern Africa, given the region’s inherent cultural diversity and colonial history, is the need for ‘heritage construct inclusivity’ within the processes constituting heritage education practices. Working around this broad research goal, I therefore needed to be clear about what I mean or refer to as heritage. I realised, however, how elusive and conceptually problematic the term ‘heritage’ is. I therefore, drawing from literature and experiences gained during field observations and focus group interviews, came up with the idea of working with three viewpoints of heritage. Drawing on real life cases I argue that current heritage management and education practices’ failure to recognise and respect the evolving, interconnectedness and multi layered nature of heritage, partly explain the same practices’ lack of relevance and agency to enhance the sustainable management of local heritage resources. I also suggest a few ideas which heritage educators in the context of post-colonial southern Africa may need to consider in their everyday heritage education practices. I also introduce the notion of conceptualising heritage as ‘cultural landscapes’, within which the evolving, dissonant and interconnected nature of heritage, and associated heritage constructs, may be reconciled.
- Full Text:
- Date Issued: 2011
Hierarchical spatial organization and prioritization of wetlands: a conceptual model for wetland rehabilitation in South Africa
- Sieben, E J J, Ellery, William F N, Kotze, Donovan C, Rountree, M
- Authors: Sieben, E J J , Ellery, William F N , Kotze, Donovan C , Rountree, M
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/144399 , vital:38342 , DOI: 10.1007/s11273-011-9212-8
- Description: Wetland rehabilitation planning needs to take into account many different aspects of the wetland and its context. In South Africa, much emphasis is placed on the delivery of ecosystem services, poverty relief and skills development for those involved in labour-intensive rehabilitation measures. A framework is presented that facilitates decision-making with regards to wetland rehabilitation planning. This starts with prioritizing which wetlands need attention within a catchment. This is followed by decisions regarding which rehabilitation measures would be effective in improving certain ecosystem services based upon the aims of rehabilitation and the social context of the surrounding catchment.
- Full Text:
- Date Issued: 2011
- Authors: Sieben, E J J , Ellery, William F N , Kotze, Donovan C , Rountree, M
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/144399 , vital:38342 , DOI: 10.1007/s11273-011-9212-8
- Description: Wetland rehabilitation planning needs to take into account many different aspects of the wetland and its context. In South Africa, much emphasis is placed on the delivery of ecosystem services, poverty relief and skills development for those involved in labour-intensive rehabilitation measures. A framework is presented that facilitates decision-making with regards to wetland rehabilitation planning. This starts with prioritizing which wetlands need attention within a catchment. This is followed by decisions regarding which rehabilitation measures would be effective in improving certain ecosystem services based upon the aims of rehabilitation and the social context of the surrounding catchment.
- Full Text:
- Date Issued: 2011
High Speed Lexical Classification of Malicious URLs
- Egan, Shaun P, Irwin, Barry V W
- Authors: Egan, Shaun P , Irwin, Barry V W
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428055 , vital:72483 , https://www.researchgate.net/profile/Barry-Ir-win/publication/326225046_High_Speed_Lexical_Classification_of_Malicious_URLs/links/5b3f20acaca27207851c60f9/High-Speed-Lexical-Classification-of-Malicious-URLs.pdf
- Description: It has been shown in recent research that it is possible to identify malicious URLs through lexi-cal analysis of their URL structures alone. Lightweight algorithms are defined as methods by which URLs are analyzed that do not use external sources of information such as WHOIS lookups, blacklist lookups and content analysis. These parameters include URL length, number of delimiters as well as the number of traversals through the directory structure and are used throughout much of the research in the paradigm of lightweight classification. Methods which include external sources of information are often called fully featured classifications and have been shown to be only slightly more effective than a purely lexical analysis when considering both false-positives and falsenegatives. This distinction allows these algorithms to be run client side without the introduction of additional latency, but still providing a high level of accuracy through the use of modern techniques in training classifiers. Both AROW and CW classifier update methods will be used as prototype implementations and their effectiveness will be com-pared to fully featured analysis results. These methods are selected because they are able to train on any labeled data, including instances in which their prediction is correct, allowing them to build a confidence in specific lexical features.
- Full Text:
- Date Issued: 2011
- Authors: Egan, Shaun P , Irwin, Barry V W
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428055 , vital:72483 , https://www.researchgate.net/profile/Barry-Ir-win/publication/326225046_High_Speed_Lexical_Classification_of_Malicious_URLs/links/5b3f20acaca27207851c60f9/High-Speed-Lexical-Classification-of-Malicious-URLs.pdf
- Description: It has been shown in recent research that it is possible to identify malicious URLs through lexi-cal analysis of their URL structures alone. Lightweight algorithms are defined as methods by which URLs are analyzed that do not use external sources of information such as WHOIS lookups, blacklist lookups and content analysis. These parameters include URL length, number of delimiters as well as the number of traversals through the directory structure and are used throughout much of the research in the paradigm of lightweight classification. Methods which include external sources of information are often called fully featured classifications and have been shown to be only slightly more effective than a purely lexical analysis when considering both false-positives and falsenegatives. This distinction allows these algorithms to be run client side without the introduction of additional latency, but still providing a high level of accuracy through the use of modern techniques in training classifiers. Both AROW and CW classifier update methods will be used as prototype implementations and their effectiveness will be com-pared to fully featured analysis results. These methods are selected because they are able to train on any labeled data, including instances in which their prediction is correct, allowing them to build a confidence in specific lexical features.
- Full Text:
- Date Issued: 2011
History of the amaJobe traditional community
- Authors: Bani, Zanemali
- Date: 2011
- Subjects: Bani, Zanemali Jobe (African people) -- South Africa -- Peddie -- History Tarfield Location (Peddie, South Africa) Benton Location (Peddie, South Africa) Mqheleni Location (Peddie, South Africa) Xhosa (African people) -- South Africa -- Peddie Fort Peddie (South Africa) -- History
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/41241 , vital:25071 , This manuscript is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PR 10 353
- Description: Historic record of AmaJobe community drafted by Chief Zanemali Bani. AmaJobe is one of the most ancient traditional communities in the Eastern Cape, being able to trace their history back fourteen generations. Chief Sinuka, eight generations before Zanemali, the present chief was present at the battle between Tshawe and Cirha at the Mzimvubu river, during which battle amaJobe participated on behalf of Tshawe. This battle occurred some time before the year 1600, by which time amaJobe were already a distinct traditional community. The amaJobe are closely related to the amaNgwevu clan, in fact Sinuka was the senior brother of Tshangisa and the uncle to Rhudulu. , Bani, Zanemali, Chief (donor)
- Full Text:
- Date Issued: 2011
- Authors: Bani, Zanemali
- Date: 2011
- Subjects: Bani, Zanemali Jobe (African people) -- South Africa -- Peddie -- History Tarfield Location (Peddie, South Africa) Benton Location (Peddie, South Africa) Mqheleni Location (Peddie, South Africa) Xhosa (African people) -- South Africa -- Peddie Fort Peddie (South Africa) -- History
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/41241 , vital:25071 , This manuscript is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PR 10 353
- Description: Historic record of AmaJobe community drafted by Chief Zanemali Bani. AmaJobe is one of the most ancient traditional communities in the Eastern Cape, being able to trace their history back fourteen generations. Chief Sinuka, eight generations before Zanemali, the present chief was present at the battle between Tshawe and Cirha at the Mzimvubu river, during which battle amaJobe participated on behalf of Tshawe. This battle occurred some time before the year 1600, by which time amaJobe were already a distinct traditional community. The amaJobe are closely related to the amaNgwevu clan, in fact Sinuka was the senior brother of Tshangisa and the uncle to Rhudulu. , Bani, Zanemali, Chief (donor)
- Full Text:
- Date Issued: 2011
Hsp90α/β associates with the GSK3β/axin1/phospho-β-catenin complex in the human MCF-7 epithelial breast cancer model:
- Cooper, Leanne C, Prinsloo, Earl, Edkins, Adrienne L, Blatch, Gregory L
- Authors: Cooper, Leanne C , Prinsloo, Earl , Edkins, Adrienne L , Blatch, Gregory L
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/165096 , vital:41208 , DOI: 10.1016/j.bbrc.2011.08.136
- Description: Hsp90α/β, the signal transduction chaperone, maintains intracellular communication in normal, stem, and cancer cells. The well characterised association of Hsp90α/β with its client kinases form the framework of multiple signalling networks. GSK3β, a known Hsp90α/β client, mediates β-catenin phosphorylation as part of a cytoplasmic destruction complex which targets phospho-β-catenin to the 26S proteasome. The canonical Wnt/β-catenin pathway promotes stem cell self-renewal as well as oncogenesis. The degree of Hsp90α/β involvement in Wnt/β-catenin signalling needs clarification. Here, we describe the association of Hsp90α/β with GSK3β, β-catenin, phospho-β-catenin and the molecular scaffold, axin1, in the human MCF-7 epithelial breast cancer cell model using selective inhibition of Hsp90α/β, confocal laser scanning microscopy and immunoprecipitation. Our findings suggest that Hsp90α/β modulates the phosphorylation of β-catenin by interaction in common complex with GSK3β/axin1/β-catenin.
- Full Text:
- Date Issued: 2011
- Authors: Cooper, Leanne C , Prinsloo, Earl , Edkins, Adrienne L , Blatch, Gregory L
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/165096 , vital:41208 , DOI: 10.1016/j.bbrc.2011.08.136
- Description: Hsp90α/β, the signal transduction chaperone, maintains intracellular communication in normal, stem, and cancer cells. The well characterised association of Hsp90α/β with its client kinases form the framework of multiple signalling networks. GSK3β, a known Hsp90α/β client, mediates β-catenin phosphorylation as part of a cytoplasmic destruction complex which targets phospho-β-catenin to the 26S proteasome. The canonical Wnt/β-catenin pathway promotes stem cell self-renewal as well as oncogenesis. The degree of Hsp90α/β involvement in Wnt/β-catenin signalling needs clarification. Here, we describe the association of Hsp90α/β with GSK3β, β-catenin, phospho-β-catenin and the molecular scaffold, axin1, in the human MCF-7 epithelial breast cancer cell model using selective inhibition of Hsp90α/β, confocal laser scanning microscopy and immunoprecipitation. Our findings suggest that Hsp90α/β modulates the phosphorylation of β-catenin by interaction in common complex with GSK3β/axin1/β-catenin.
- Full Text:
- Date Issued: 2011
Human DNAJ in cancer and stem cells:
- Sterrenberg, Jason N, Edkins, Adrienne L, Blatch, Gregory L
- Authors: Sterrenberg, Jason N , Edkins, Adrienne L , Blatch, Gregory L
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/165118 , vital:41210 , DOI: 10.1016/j.canlet.2011.08.019
- Description: The heat shock protein 40 kDa (HSP40/DNAJ) co-chaperones constitute the largest and most diverse sub-group of the heat shock protein (HSP) family. DNAJ are widely accepted as regulators of HSP70 function, but also have roles as co-chaperones for the HSP90 chaperone machine, and a growing number of biological functions that may be independent of either of these chaperones. The DNAJ proteins are differentially expressed in human tissues and demonstrate the capacity to function to both promote and suppress cancer development by acting as chaperones for tumour suppressors or oncoproteins. We review the current literature on the function and expression of DNAJ in cancer, stem cells and cancer stem cells. Combining data from gene expression, proteomics and studies in other systems, we propose that DNAJ will be key regulators of cancer, stem cell and possibly cancer stem cell function. The diversity of DNAJ and their assorted roles in a range of biological functions means that selected DNAJ, provided there is limited redundancy and that a specific link to malignancy can be established, may yet provide an attractive target for specific and selective drug design for the development of anti-cancer treatments.
- Full Text:
- Date Issued: 2011
- Authors: Sterrenberg, Jason N , Edkins, Adrienne L , Blatch, Gregory L
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/165118 , vital:41210 , DOI: 10.1016/j.canlet.2011.08.019
- Description: The heat shock protein 40 kDa (HSP40/DNAJ) co-chaperones constitute the largest and most diverse sub-group of the heat shock protein (HSP) family. DNAJ are widely accepted as regulators of HSP70 function, but also have roles as co-chaperones for the HSP90 chaperone machine, and a growing number of biological functions that may be independent of either of these chaperones. The DNAJ proteins are differentially expressed in human tissues and demonstrate the capacity to function to both promote and suppress cancer development by acting as chaperones for tumour suppressors or oncoproteins. We review the current literature on the function and expression of DNAJ in cancer, stem cells and cancer stem cells. Combining data from gene expression, proteomics and studies in other systems, we propose that DNAJ will be key regulators of cancer, stem cell and possibly cancer stem cell function. The diversity of DNAJ and their assorted roles in a range of biological functions means that selected DNAJ, provided there is limited redundancy and that a specific link to malignancy can be established, may yet provide an attractive target for specific and selective drug design for the development of anti-cancer treatments.
- Full Text:
- Date Issued: 2011
I love laser : it's my guiding light
- Authors: Nolan, Cathy
- Date: 2011
- Subjects: Nyokong, Tebello
- Language: English
- Type: Article , text
- Identifier: vital:7184 , http://hdl.handle.net/10962/d1006274 , http://unesdoc.unesco.org/images/0019/001906/190645e.pdf#190680 , Nyokong, Tebello
- Description: What is the common thread that could possibly link denim jeans, cancer and pesticides? None is evident. Yet when South African chemist Tebello Nyokong describes her fascinating research, the link that emerges is light. Nyokong, a specialist in nanochemistry, loves laser, and is using it in ways that could have a revolutionary impact on medicine and the environment.
- Full Text:
- Date Issued: 2011
- Authors: Nolan, Cathy
- Date: 2011
- Subjects: Nyokong, Tebello
- Language: English
- Type: Article , text
- Identifier: vital:7184 , http://hdl.handle.net/10962/d1006274 , http://unesdoc.unesco.org/images/0019/001906/190645e.pdf#190680 , Nyokong, Tebello
- Description: What is the common thread that could possibly link denim jeans, cancer and pesticides? None is evident. Yet when South African chemist Tebello Nyokong describes her fascinating research, the link that emerges is light. Nyokong, a specialist in nanochemistry, loves laser, and is using it in ways that could have a revolutionary impact on medicine and the environment.
- Full Text:
- Date Issued: 2011
In service to the law: Alastair James Kerr SC
- Authors: Glover, Graham B
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/70658 , vital:29686 , https://hdl.handle.net/10520/EJC53959
- Description: Professor Alastair James Kerr SC passed away at Settlers Hospital in Grahamstown on the 29th of September 2010. He was eighty-eight years of age. Ironically, his death occurred at the time that the third part of the 2010 SALJ appeared in print, containing a tribute to one of the other great writers on South African contract law, Professor Richard (Dick) Christie, who had passed away earlier in the year (see A J G Lang 'Professor Richard Hunter Christie: A memorial tribute' (2010) 127 SALJ 414). 2010 may have been a momentous year in South Africa for many reasons, but the deaths of these two men in the same year has left the landscape of our contract law irrevocably changed, even though their ideas will live on through their published works.
- Full Text: false
- Date Issued: 2011
- Authors: Glover, Graham B
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/70658 , vital:29686 , https://hdl.handle.net/10520/EJC53959
- Description: Professor Alastair James Kerr SC passed away at Settlers Hospital in Grahamstown on the 29th of September 2010. He was eighty-eight years of age. Ironically, his death occurred at the time that the third part of the 2010 SALJ appeared in print, containing a tribute to one of the other great writers on South African contract law, Professor Richard (Dick) Christie, who had passed away earlier in the year (see A J G Lang 'Professor Richard Hunter Christie: A memorial tribute' (2010) 127 SALJ 414). 2010 may have been a momentous year in South Africa for many reasons, but the deaths of these two men in the same year has left the landscape of our contract law irrevocably changed, even though their ideas will live on through their published works.
- Full Text: false
- Date Issued: 2011
In vitro toxicity testing of zinc tetrasulfophthalocyanines in fibroblast and keratinocyte cells for the treatment of melanoma cancer by photodynamic therapy
- Maduray, Kaminee, Karsten, Alta, Odhay, Bharti, Nyokong, Tebello
- Authors: Maduray, Kaminee , Karsten, Alta , Odhay, Bharti , Nyokong, Tebello
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/247588 , vital:51597 , xlink:href="https://doi.org/10.1016/j.jphotobiol.2011.01.020"
- Description: A series of water-soluble tetrasulfonated metallophthalocyanines (MPcs) dyes have been studied to be used as a drug or photosensitizer (PS) in photodynamic therapy (PDT) for the treatment of cancers. During PDT the PS is administrated intravenously or topically to the patient before laser light at an appropriate wavelength is applied to the cancerous area to activate the PS. The activated PS will react with oxygen typically present in the cancerous tissue to generate reactive oxygen species for the destruction of the cancerous tissue. This in vitro study aimed at investigating the cytotoxic effects of different concentrations of zinc tetrasulfophthalocyanines (ZnTSPc) activated with a diode laser (λ = 672 nm) on melanoma, keratinocyte and fibroblast cells. To perform this study 3 × 104 cells/ml were seeded in 24-well plates and allowed to attach overnight, after which cells were treated with different concentrations of ZnTSPc. After 2 h, cells were irradiated with a constant light dose of 4.5 J/cm2. Post-irradiated cells were incubated for 24 h before cell viability was measured using the CellTiter-Blue Viability Assay. Data indicated high concentrations of ZnTSPc (60–100 μg/ml) in its inactive state are cytotoxic to the melanoma cancer cells. Also, results showed that photoactivated ZnTSPc (50 μg/ml) was able to reduce the cell viability of melanoma, fibroblast and keratinocyte cells to 61%, 81% and 83% respectively. At this photosensitizing concentration the efficacy the treatment light dose of 4.5 J/cm2 against other light doses of 2.5 J/cm2, 7.5 J/cm2 and 10 J/cm2 on the different cell lines were analyzed. ZnTSPc at a concentration of 50 μg/ml activated with a light dose of 4.5 J/cm2 was the most efficient for the killing of melanoma cancer cells with reduced killing effects on healthy normal skin cells in comparison to the other treatment light doses. Melanoma cancer cells after PDT with a photosensitizing concentration of 50 μg/ml and a treatment light dose of 4.5 J/cm2 showed certain apoptosis characteristics such as chromatin condensation and fragmentation of the nucleus. This concludes that low concentrations of ZnTSPc activated with the appropriate light dose can be used to induce cell death in melanoma cells with the occurrence of minimal damage to surrounding healthy tissue.
- Full Text:
- Date Issued: 2011
- Authors: Maduray, Kaminee , Karsten, Alta , Odhay, Bharti , Nyokong, Tebello
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/247588 , vital:51597 , xlink:href="https://doi.org/10.1016/j.jphotobiol.2011.01.020"
- Description: A series of water-soluble tetrasulfonated metallophthalocyanines (MPcs) dyes have been studied to be used as a drug or photosensitizer (PS) in photodynamic therapy (PDT) for the treatment of cancers. During PDT the PS is administrated intravenously or topically to the patient before laser light at an appropriate wavelength is applied to the cancerous area to activate the PS. The activated PS will react with oxygen typically present in the cancerous tissue to generate reactive oxygen species for the destruction of the cancerous tissue. This in vitro study aimed at investigating the cytotoxic effects of different concentrations of zinc tetrasulfophthalocyanines (ZnTSPc) activated with a diode laser (λ = 672 nm) on melanoma, keratinocyte and fibroblast cells. To perform this study 3 × 104 cells/ml were seeded in 24-well plates and allowed to attach overnight, after which cells were treated with different concentrations of ZnTSPc. After 2 h, cells were irradiated with a constant light dose of 4.5 J/cm2. Post-irradiated cells were incubated for 24 h before cell viability was measured using the CellTiter-Blue Viability Assay. Data indicated high concentrations of ZnTSPc (60–100 μg/ml) in its inactive state are cytotoxic to the melanoma cancer cells. Also, results showed that photoactivated ZnTSPc (50 μg/ml) was able to reduce the cell viability of melanoma, fibroblast and keratinocyte cells to 61%, 81% and 83% respectively. At this photosensitizing concentration the efficacy the treatment light dose of 4.5 J/cm2 against other light doses of 2.5 J/cm2, 7.5 J/cm2 and 10 J/cm2 on the different cell lines were analyzed. ZnTSPc at a concentration of 50 μg/ml activated with a light dose of 4.5 J/cm2 was the most efficient for the killing of melanoma cancer cells with reduced killing effects on healthy normal skin cells in comparison to the other treatment light doses. Melanoma cancer cells after PDT with a photosensitizing concentration of 50 μg/ml and a treatment light dose of 4.5 J/cm2 showed certain apoptosis characteristics such as chromatin condensation and fragmentation of the nucleus. This concludes that low concentrations of ZnTSPc activated with the appropriate light dose can be used to induce cell death in melanoma cells with the occurrence of minimal damage to surrounding healthy tissue.
- Full Text:
- Date Issued: 2011
Incorporating uncertainty in water resources simulation and assessment tools in South Africa
- Hughes, Denis A, Kapangaziwiri, E, Mallory, S J, Wagener, T, Smithers, J
- Authors: Hughes, Denis A , Kapangaziwiri, E , Mallory, S J , Wagener, T , Smithers, J
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/438239 , vital:73445 , ISBN 978-1-4312-0128-0 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/18381.pdf
- Description: The main objective of the project was to contribute to the incorporation of uncer-tainty assessments in water resource decision making in South Africa, thereby quan-tifying the risks associated with specific decisions about planned future water re-source developments. This objective was supported by several specific aims: 1. De-velop an understanding of uncertainty and associated risks in water resource man-agement on the basis of literature and known practices, nationally and internation-ally. 2. Identify and characterise the main sources of uncertainty (focusing on cur-rent South African practice and typical situations of data availability). 3. Develop techniques and guidelines for quantifying the uncertainty associated with different models. This will include uncertainty in all relevant areas (hydrological, climate, economic, social, etc.). 4. Determine the effects of uncertainty on water resource management and identify what level of uncertainty is acceptable. 5. Develop guide-lines for the communication of uncertainty and the impacts to various stakeholder groups involved within water resource planning and management. This aim will need to address the issue of the links between uncertainty and risk. 6. Develop guidelines for incorporating uncertainty and the associated risk into water resource decision making processes. 7. Identify those areas of uncertainty that can be realistically re-duced and which will have the greatest impact on reducing the risks involved with water resource decision making.
- Full Text:
- Date Issued: 2011
- Authors: Hughes, Denis A , Kapangaziwiri, E , Mallory, S J , Wagener, T , Smithers, J
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/438239 , vital:73445 , ISBN 978-1-4312-0128-0 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/18381.pdf
- Description: The main objective of the project was to contribute to the incorporation of uncer-tainty assessments in water resource decision making in South Africa, thereby quan-tifying the risks associated with specific decisions about planned future water re-source developments. This objective was supported by several specific aims: 1. De-velop an understanding of uncertainty and associated risks in water resource man-agement on the basis of literature and known practices, nationally and internation-ally. 2. Identify and characterise the main sources of uncertainty (focusing on cur-rent South African practice and typical situations of data availability). 3. Develop techniques and guidelines for quantifying the uncertainty associated with different models. This will include uncertainty in all relevant areas (hydrological, climate, economic, social, etc.). 4. Determine the effects of uncertainty on water resource management and identify what level of uncertainty is acceptable. 5. Develop guide-lines for the communication of uncertainty and the impacts to various stakeholder groups involved within water resource planning and management. This aim will need to address the issue of the links between uncertainty and risk. 6. Develop guidelines for incorporating uncertainty and the associated risk into water resource decision making processes. 7. Identify those areas of uncertainty that can be realistically re-duced and which will have the greatest impact on reducing the risks involved with water resource decision making.
- Full Text:
- Date Issued: 2011
Integrating scholastic and practice-centred epistemologies in a post-graduate professional degree
- Lotz-Sisitka, Heila, Ellery, Karen
- Authors: Lotz-Sisitka, Heila , Ellery, Karen
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/69489 , vital:29542 , https://hdl.handle.net/10520/EJC37710
- Description: This article argues for the integration of both scholastic and practice-centred epistemologies within an Environmental Education (EE) post-graduate curriculum that is oriented towards sustainability and socio-ecological justice. It is an interpretive study based on an in-depth analysis of five assignments by four scholars registered for the M.Ed. EE course at Rhodes University where a contextualised, reflexive research process, based in a work-place context, forms the integrative pedagogic tool. Analyses indicate that involving students in such a process, with close support and guidance, is an effective means of developing both scholastic and practical epistemologies. It is concluded that research-led integration of scholastic and practice-centred epistemologies in a transformational curriculum has the potential to provide epistemological access to the academy, advance knowledge within disciplines, and challenge the dominance of scholastic knowledge in higher education settings.
- Full Text:
- Date Issued: 2011
- Authors: Lotz-Sisitka, Heila , Ellery, Karen
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/69489 , vital:29542 , https://hdl.handle.net/10520/EJC37710
- Description: This article argues for the integration of both scholastic and practice-centred epistemologies within an Environmental Education (EE) post-graduate curriculum that is oriented towards sustainability and socio-ecological justice. It is an interpretive study based on an in-depth analysis of five assignments by four scholars registered for the M.Ed. EE course at Rhodes University where a contextualised, reflexive research process, based in a work-place context, forms the integrative pedagogic tool. Analyses indicate that involving students in such a process, with close support and guidance, is an effective means of developing both scholastic and practical epistemologies. It is concluded that research-led integration of scholastic and practice-centred epistemologies in a transformational curriculum has the potential to provide epistemological access to the academy, advance knowledge within disciplines, and challenge the dominance of scholastic knowledge in higher education settings.
- Full Text:
- Date Issued: 2011
Intellectualisation of African languages with particular reference to isiXhosa
- Authors: Maseko, Pamela
- Date: 2011
- Subjects: Xhosa language -- Study and teaching -- South Africa , Language and education -- South Africa , African languages
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/58035 , vital:27035
- Description: The research explores the relationship between language and education, and motivates for the intellectualisation of African languages, isiXhosa in particular, and for their use in education. The main rationale behind this is that access to, and success in education can largely be realised if that education is mediated in one’s first language. The thesis discusses works of prominent scholars who have written on the subject - relating cognitive abilities and achievement in education to language in which that education is offered. The lack of terminology in new domains in African languages as barrier to mother tongue education is laid bare by looking specifically at the history of intellectualisation of isiXhosa, from the missionaries in the 1820s up to the new endeavours as recently as 2008. Terminologies that were developed during the Bantu Education era, where development of isiXhosa and other indigenous African languages was accelerated in order to respond to the demands of moedertaal-onderwys (mother tongue education) are surveyed, and the process of their development analysed. Three main terminology lists developed during this period are analysed against terminology development principles, approaches and methods that are seen as a measure to ensure quality terminology development. The efforts of the development of isiXhosa during the post-apartheid South Africa, especially the government-driven initiatives, are also critiqued even though these are not as effective and as extensive, especially in education. The result of this analysis is that African languages and isiXhosa in particular, can be used in scientific disciplines and at the highest levels of education. Its grammar is advanced, and its lexicon is extensive such that new concepts that need to be named can be named, using appropriate term creation strategies. There are also technological tools such as WordSmith tools that can be used that can advance its development, ensuring that the concept represented in the newly-created term is precise, concise and appropriate in terms of its discipline. Therefore it is argued that, in the interim, terminologies should be developed, in various subjects, to support learning, which at this stage is mediated in English, for those students who have other languages as mother tongue. Those terminologies that have been developed in the various historical periods should be collated, revised and brought into the classrooms. The thesis argues that real intellectualisation of isiXhosa and other African languages rests on the use of these languages in classrooms and lecture halls, and in the value that all role players place on these languages.
- Full Text:
- Date Issued: 2011
- Authors: Maseko, Pamela
- Date: 2011
- Subjects: Xhosa language -- Study and teaching -- South Africa , Language and education -- South Africa , African languages
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/58035 , vital:27035
- Description: The research explores the relationship between language and education, and motivates for the intellectualisation of African languages, isiXhosa in particular, and for their use in education. The main rationale behind this is that access to, and success in education can largely be realised if that education is mediated in one’s first language. The thesis discusses works of prominent scholars who have written on the subject - relating cognitive abilities and achievement in education to language in which that education is offered. The lack of terminology in new domains in African languages as barrier to mother tongue education is laid bare by looking specifically at the history of intellectualisation of isiXhosa, from the missionaries in the 1820s up to the new endeavours as recently as 2008. Terminologies that were developed during the Bantu Education era, where development of isiXhosa and other indigenous African languages was accelerated in order to respond to the demands of moedertaal-onderwys (mother tongue education) are surveyed, and the process of their development analysed. Three main terminology lists developed during this period are analysed against terminology development principles, approaches and methods that are seen as a measure to ensure quality terminology development. The efforts of the development of isiXhosa during the post-apartheid South Africa, especially the government-driven initiatives, are also critiqued even though these are not as effective and as extensive, especially in education. The result of this analysis is that African languages and isiXhosa in particular, can be used in scientific disciplines and at the highest levels of education. Its grammar is advanced, and its lexicon is extensive such that new concepts that need to be named can be named, using appropriate term creation strategies. There are also technological tools such as WordSmith tools that can be used that can advance its development, ensuring that the concept represented in the newly-created term is precise, concise and appropriate in terms of its discipline. Therefore it is argued that, in the interim, terminologies should be developed, in various subjects, to support learning, which at this stage is mediated in English, for those students who have other languages as mother tongue. Those terminologies that have been developed in the various historical periods should be collated, revised and brought into the classrooms. The thesis argues that real intellectualisation of isiXhosa and other African languages rests on the use of these languages in classrooms and lecture halls, and in the value that all role players place on these languages.
- Full Text:
- Date Issued: 2011
Invasion of a headwater stream by non-native fishes in the Swartkops River system, South Africa
- Ellender, Bruce R, Weyl, Olaf L F, Swartz, Ernst R
- Authors: Ellender, Bruce R , Weyl, Olaf L F , Swartz, Ernst R
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/446866 , vital:74566 , https://doi.org/10.1080/15627020.2011.11407477
- Description: In South Africa, fishes in headwater streams are increasingly being threatened by non-native fish invasions. These invasions originate primarily from source populations in mainstream rivers and impoundments. In the Blindekloof stream, a Swartkops River headwater tributary, the non-native Micropterus salmoides was eradicated from the stream by conservation authorities in 1989. As a result of this eradication subsequent occurrences of non-native fishes are most likely a result of upstream invasions from the mainstream Swartkops River. The Blindekloof stream therefore provided a unique opportunity to investigate whether M. salmoides would reinvade after its removal in 1989 and if the more recently introduced Clarias gariepinus and Tilapia sparrmanii would invade the Blindekloof stream. During snorkel and electrofishing surveys four non-native species were recorded (M. salmoides, M. dolomieu, T. sparrmanii, C. gariepinus ).
- Full Text:
- Date Issued: 2011
- Authors: Ellender, Bruce R , Weyl, Olaf L F , Swartz, Ernst R
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/446866 , vital:74566 , https://doi.org/10.1080/15627020.2011.11407477
- Description: In South Africa, fishes in headwater streams are increasingly being threatened by non-native fish invasions. These invasions originate primarily from source populations in mainstream rivers and impoundments. In the Blindekloof stream, a Swartkops River headwater tributary, the non-native Micropterus salmoides was eradicated from the stream by conservation authorities in 1989. As a result of this eradication subsequent occurrences of non-native fishes are most likely a result of upstream invasions from the mainstream Swartkops River. The Blindekloof stream therefore provided a unique opportunity to investigate whether M. salmoides would reinvade after its removal in 1989 and if the more recently introduced Clarias gariepinus and Tilapia sparrmanii would invade the Blindekloof stream. During snorkel and electrofishing surveys four non-native species were recorded (M. salmoides, M. dolomieu, T. sparrmanii, C. gariepinus ).
- Full Text:
- Date Issued: 2011
Invasion of a South African Anguilla mossambica (Anguillidae) population by the alien gill worm Pseudodactylogyrus anguillae (Monogenea)
- Parker, Denham, Weyl, Olaf L F, Taraschewski, Horst
- Authors: Parker, Denham , Weyl, Olaf L F , Taraschewski, Horst
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/443367 , vital:74111 , https://hdl.handle.net/10520/EJC18196
- Description: The parasitic gill monogenean Pseudodactylogyrus anguillae is alien to Africa. In an investigation of 227 longfin eel, Anguilla mossambica, and 26 mottled eel, Anguilla marmorata, sampled from four river systems in the Eastern Cape, South Africa, this parasite was only present on the gills of A. mossambica sampled from the Great Fish River system. In the Great Fish River, it infected 73.2% of the sampled population at a mean intensity of 63.8 ± 34.3 parasites per fish. High prevalence and intensity are indicative of a well-established alien invasive parasitic species. Results showing the absence of P. anguillae from the co-occurring but less abundant A. marmorata indicate that this species may be less susceptible to P. anguillae infection.
- Full Text:
- Date Issued: 2011
- Authors: Parker, Denham , Weyl, Olaf L F , Taraschewski, Horst
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/443367 , vital:74111 , https://hdl.handle.net/10520/EJC18196
- Description: The parasitic gill monogenean Pseudodactylogyrus anguillae is alien to Africa. In an investigation of 227 longfin eel, Anguilla mossambica, and 26 mottled eel, Anguilla marmorata, sampled from four river systems in the Eastern Cape, South Africa, this parasite was only present on the gills of A. mossambica sampled from the Great Fish River system. In the Great Fish River, it infected 73.2% of the sampled population at a mean intensity of 63.8 ± 34.3 parasites per fish. High prevalence and intensity are indicative of a well-established alien invasive parasitic species. Results showing the absence of P. anguillae from the co-occurring but less abundant A. marmorata indicate that this species may be less susceptible to P. anguillae infection.
- Full Text:
- Date Issued: 2011
Invasive alien freshwater fishes in the Wilderness Lakes System, a wetland of international importance in the Western Cape Province, South Africa
- Olds, Alexis A, Smith, M K S, Weyl, Olaf L F, Russell, I A
- Authors: Olds, Alexis A , Smith, M K S , Weyl, Olaf L F , Russell, I A
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/446879 , vital:74567 , https://doi.org/10.1080/15627020.2011.11407491
- Description: The Wilderness Lakes System incorporates a RAMSAR listed wetland. Previous ichthyological surveys reported three invasive freshwater fishes; Oreochromis mossambicus (Mozambique tilapia), Gambusia affinis (mosquitofish) and Micropterus salmoides (largemouth bass) from this system. To assess the status of these alien fishes, the fish assemblages in the lakes system were sampled with seine nets and fyke nets in 2009 and 2010. A total of 87 893 fish comprising 16 species were caught. In addition to confirming the persistence of O. mossambicus and G. affinis in the system, the current study also reports the presence of a new invader, Cyprinus carpio (common carp). M. salmoides were absent from 2009 and 2010 samples.
- Full Text:
- Date Issued: 2011
- Authors: Olds, Alexis A , Smith, M K S , Weyl, Olaf L F , Russell, I A
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/446879 , vital:74567 , https://doi.org/10.1080/15627020.2011.11407491
- Description: The Wilderness Lakes System incorporates a RAMSAR listed wetland. Previous ichthyological surveys reported three invasive freshwater fishes; Oreochromis mossambicus (Mozambique tilapia), Gambusia affinis (mosquitofish) and Micropterus salmoides (largemouth bass) from this system. To assess the status of these alien fishes, the fish assemblages in the lakes system were sampled with seine nets and fyke nets in 2009 and 2010. A total of 87 893 fish comprising 16 species were caught. In addition to confirming the persistence of O. mossambicus and G. affinis in the system, the current study also reports the presence of a new invader, Cyprinus carpio (common carp). M. salmoides were absent from 2009 and 2010 samples.
- Full Text:
- Date Issued: 2011
Investigating the impact of capital account liberalization on economic growth: A case study of South Africa
- Khumalo, Sibanisezwe A. (https://orcid.org/0000-0002-4330-9249)
- Authors: Khumalo, Sibanisezwe A. (https://orcid.org/0000-0002-4330-9249)
- Date: 2011
- Subjects: Capital Movements--South Africa , Investment, Foreign--South Africa South Africa , Free Trade--South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25800 , vital:64486
- Description: The increased interest in capital flows has made it imperative to understand how they impact a particular economy. The Global drive for an interlinked world economy has increased the need for monetary authorities and Governments to able to effectively deal with any negative spins off from capital flows and also be able to take advantage of positive effects capital flows may have on an economy. The study seeks to understand how the change to lift restrictions on capital flows into the South African economy may have impacted on economic growth. The study analyses the relationship that existed between capital flows, that is to say foreign direct investment (FDI) and portfolio investment (P_I) and economic growth under the period of capital controls (1975 Q1 to 1994Q1). Then study will then analyse the same relationship but this time under the liberalised period (1994 Q2 to 2010 Q2) and compare how the long run relationship has changed after capital account liberalisation. The study uses an endogenous model to determine the relationship. The study unlike most will focus on a single economy, which is South Africa and not use panel data like most previous studies. The study found that in the short run capital account liberalising aided economic growth as both FDI and P_I became significant, with positive coefficients and also found that there is long run relationship between economic growth and capital flows. In the long run FDI is significant while P_I is not. After liberalisation FDI adjusted faster in the long run than before liberalisation on its impact on economic output. Also of note was that the study found that under capital controls the conditional variance was constant but after liberalisation the relationship between capital flows and economic growth became more sensitive to negative news and the conditional variance was not constant thus indication of increased volatility. To maximise from opening up of capital accounts the economy should maintain sound macroeconomic policies. This will help shield the economy from the external shocks and this maintain economic growth. , Thesis (MA) -- Faculty of Management and Commerce, 2011
- Full Text:
- Date Issued: 2011
- Authors: Khumalo, Sibanisezwe A. (https://orcid.org/0000-0002-4330-9249)
- Date: 2011
- Subjects: Capital Movements--South Africa , Investment, Foreign--South Africa South Africa , Free Trade--South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/25800 , vital:64486
- Description: The increased interest in capital flows has made it imperative to understand how they impact a particular economy. The Global drive for an interlinked world economy has increased the need for monetary authorities and Governments to able to effectively deal with any negative spins off from capital flows and also be able to take advantage of positive effects capital flows may have on an economy. The study seeks to understand how the change to lift restrictions on capital flows into the South African economy may have impacted on economic growth. The study analyses the relationship that existed between capital flows, that is to say foreign direct investment (FDI) and portfolio investment (P_I) and economic growth under the period of capital controls (1975 Q1 to 1994Q1). Then study will then analyse the same relationship but this time under the liberalised period (1994 Q2 to 2010 Q2) and compare how the long run relationship has changed after capital account liberalisation. The study uses an endogenous model to determine the relationship. The study unlike most will focus on a single economy, which is South Africa and not use panel data like most previous studies. The study found that in the short run capital account liberalising aided economic growth as both FDI and P_I became significant, with positive coefficients and also found that there is long run relationship between economic growth and capital flows. In the long run FDI is significant while P_I is not. After liberalisation FDI adjusted faster in the long run than before liberalisation on its impact on economic output. Also of note was that the study found that under capital controls the conditional variance was constant but after liberalisation the relationship between capital flows and economic growth became more sensitive to negative news and the conditional variance was not constant thus indication of increased volatility. To maximise from opening up of capital accounts the economy should maintain sound macroeconomic policies. This will help shield the economy from the external shocks and this maintain economic growth. , Thesis (MA) -- Faculty of Management and Commerce, 2011
- Full Text:
- Date Issued: 2011