First and second born twins: a comparative study utilizing the Graffiths mental development scales - extended revised
- Authors: Davidson, Gabrielle
- Date: 2008
- Subjects: Griffiths Scales of Mental Development , Twins -- Intelligence testing -- South Africa , Preschool children -- Intelligence testing -- South Africa , Mental development -- Testing , Psychological tests for children
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9921 , http://hdl.handle.net/10948/669 , Griffiths Scales of Mental Development , Twins -- Intelligence testing -- South Africa , Preschool children -- Intelligence testing -- South Africa , Mental development -- Testing , Psychological tests for children
- Description: Despite the concept of twins and twinning being a highly explored area of research for many years, limited research has been conducted on the comparison of first and second born twin development. The nature of twins leads people to believe that twins will present with similar characteristics, however, this study explores the possibility that due to their ordinal position they could in fact present with differing characteristics and could differ developmentally. The early holistic development of a child influences the rest of their lives. Concerning twins, the development of individuality and self-knowledge is especially important. Theorists, such as Piaget (1950), propose that child development takes place in stages and that although the order in which children proceed through these stages is the same, the pace at which this takes place can vary. The necessity of monitoring the child’s journey through these stages highlights the value of child developmental assessment. This form of assessment needs to be holistic, needs to involve a multidisciplinary team of professionals and needs to utilize assessment measures that are valid, reliable, culture-fair and standardized. The Griffiths Mental Development Scales-Extended Revised (GMDS-ER) is one such measure. This study, focusing on twin development, aimed to contribute and provide valuable information to a larger research project that is currently under way aiming to increase the applicability of the Griffiths Mental Development Scales-Extended Revised (GMDS-ER) in the South African context. The primary aim of the study, however, was to explore and compare the performance of normal first born and second born twins, aged between 2 and 8 years 4 months old, on the GMDS-ER. The purpose of the study was to generate information on the relationship between first born twins’ general development and second born twins’ general development. An exploratory, descriptive quantitative design was used. Participants were selected through a combination of non-probability purposive, convenience and snowball sampling. Data was analysed using descriptive statistics and dependent sample t-tests were employed to compare the General Quotients (GQ’s) of the first and second born twins in the sample. Results showed that no significant differences were found between the first and second born twins’ general development. Information generated from this study contributed to 1) child development research; 2) twin developmental research within a South African context; and 3) a greater group of studies on the GMDS-ER, currently underway in the United Kingdom and South Africa, aiming to contribute to the international credibility of this measure
- Full Text:
- Date Issued: 2008
- Authors: Davidson, Gabrielle
- Date: 2008
- Subjects: Griffiths Scales of Mental Development , Twins -- Intelligence testing -- South Africa , Preschool children -- Intelligence testing -- South Africa , Mental development -- Testing , Psychological tests for children
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9921 , http://hdl.handle.net/10948/669 , Griffiths Scales of Mental Development , Twins -- Intelligence testing -- South Africa , Preschool children -- Intelligence testing -- South Africa , Mental development -- Testing , Psychological tests for children
- Description: Despite the concept of twins and twinning being a highly explored area of research for many years, limited research has been conducted on the comparison of first and second born twin development. The nature of twins leads people to believe that twins will present with similar characteristics, however, this study explores the possibility that due to their ordinal position they could in fact present with differing characteristics and could differ developmentally. The early holistic development of a child influences the rest of their lives. Concerning twins, the development of individuality and self-knowledge is especially important. Theorists, such as Piaget (1950), propose that child development takes place in stages and that although the order in which children proceed through these stages is the same, the pace at which this takes place can vary. The necessity of monitoring the child’s journey through these stages highlights the value of child developmental assessment. This form of assessment needs to be holistic, needs to involve a multidisciplinary team of professionals and needs to utilize assessment measures that are valid, reliable, culture-fair and standardized. The Griffiths Mental Development Scales-Extended Revised (GMDS-ER) is one such measure. This study, focusing on twin development, aimed to contribute and provide valuable information to a larger research project that is currently under way aiming to increase the applicability of the Griffiths Mental Development Scales-Extended Revised (GMDS-ER) in the South African context. The primary aim of the study, however, was to explore and compare the performance of normal first born and second born twins, aged between 2 and 8 years 4 months old, on the GMDS-ER. The purpose of the study was to generate information on the relationship between first born twins’ general development and second born twins’ general development. An exploratory, descriptive quantitative design was used. Participants were selected through a combination of non-probability purposive, convenience and snowball sampling. Data was analysed using descriptive statistics and dependent sample t-tests were employed to compare the General Quotients (GQ’s) of the first and second born twins in the sample. Results showed that no significant differences were found between the first and second born twins’ general development. Information generated from this study contributed to 1) child development research; 2) twin developmental research within a South African context; and 3) a greater group of studies on the GMDS-ER, currently underway in the United Kingdom and South Africa, aiming to contribute to the international credibility of this measure
- Full Text:
- Date Issued: 2008
Floating sulphur biofilms structure, function and biotechnology
- Molwantwa, Jennifer Balatedi
- Authors: Molwantwa, Jennifer Balatedi
- Date: 2008
- Subjects: Biofilms Sulfur Acid mine drainage -- South Africa Mine water -- Purification -- Biological treatment Microbial ecology
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3958 , http://hdl.handle.net/10962/d1004017
- Description: Mine wastewaters generated during active production operations, and decanting streams following mine closure have major environmental impacts, and volumes requiring treatment are expected to increase substantially as the South African mining industry matures. Biological treatment of mine waters has been the subject of increasing interest, where sulphate reducing bacteria are employed for the reduction of sulphate to sulphide, precipitation of metals and the production of alkalinity. However, the sulphide if not removed from the system can be oxidised back to sulphate. As a result there have been limitations especially in the provision of technological options that are sustainable over the long-term, where the total sulphur (in its different forms) can be removed from the system. These, however, are the subject of a number of constraints including, importantly, the process capability to remove reduced sulphur from the treated stream, in one of its oxidation states, and thus linearise the biological sulphur cycle. This remains a major bottleneck in the development of biological wastewater treatment technology. Floating sulphur biofilms are observed as surface layers in numerous aquatic sulphide-rich environments, and it has been suggested that they play a role in the biological cycling of sulphur. The use of sulphur biofilms for the removal of elemental sulphur was identified in this study as a possible means for addressing the technological bottleneck, especially in passive wastewater treatment systems. There is, however, little documented information in the literature on the structure of floating sulphur biofilms, the microbial species responsible for their occurrence or bio-process applications of the system. A linear flow channel reactor was developed to simulate natural conditions and enabled the study of floating sulphur biofilm under controlled laboratory conditions. It was observed that these biofilms developed through three distinct stages termed Thin, Sticky and Brittle films. A microprobe study showed the presence of a steep Redox gradient established across (260 to 380 μm) depth of the floating sulphur biofilm of ~ 0 to -200 mV (top to bottom), which correlated with pH and sulphide gradients across the system. Structural investigations embedded in an exopolymeric matrix containing clearly defined channels and pores. Sulphur crystals were found to develop within the biofilm and above a certain size these disengaged and then settled in the liquid phase below the biofilm. These features, together with the ability of the biofilm to remain suspended at the air/water interface thus provide the surface requirement, and indicate that these structures may be understood as “true” biofilms. In order to study an apparent functional differentiation within the floating sulphur biofilm system, a method was developed to expand its various components over a 13 cm length of agarose tube and across which an oxygen/sulphide gradient was established. This was done by inserting a sulphide plug in the bottom of the tube, overlaying this with the biofilm mixed and suspended in agarose and leaving the tube to open air. After allowing for growth, the different components of the microbial population occurring at various levels across the oxygen/sulphide gradient were sampled. The microbial population was found to resort in distinct functional layers. Aerobes including Acidithiobacillus and Azoarcus, Acidithiobacillus, Thiothrix, Thiovirga and Sulfurimonas were found in the upper oxidised layer. Aerobe and facultative anaerobes such as Chryseobacterium, Bacteroides and Planococcus were found in the middle and heterotrophic anaerobes such as Brevundimonas and uncultured anaerobes were found in the bottom anoxic layer. This enabled the development of a first descriptive structural/functional model accounting for the performance of floating sulphur biofilms. The potential of the floating sulphur biofilm for use as a bioprocess unit operation for sulphide removal in lignocellulose-based low-flow passive systems for acid mine drainage wastewater treatment was investigated. The linear flow channel reactor was scaled up and it was shown that the optimum sulphide removal of 74 % and sulphur recovery of 60 % could be achieved at 20 °C. In a further scale up of the linear channel reactor, the floating sulphur biofilm reactor was developed and operated. Sulphide removal and sulphur recovery of 65 and 56 % respectively was measured in the process. An understanding of the nature and function of floating sulphur biofilms and the further development of their potential application in sulphide removal in aquatic systems may provide a useful contribution to the treatment of acid mine drainage and other sulphidic wastewaters.
- Full Text:
- Date Issued: 2008
- Authors: Molwantwa, Jennifer Balatedi
- Date: 2008
- Subjects: Biofilms Sulfur Acid mine drainage -- South Africa Mine water -- Purification -- Biological treatment Microbial ecology
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3958 , http://hdl.handle.net/10962/d1004017
- Description: Mine wastewaters generated during active production operations, and decanting streams following mine closure have major environmental impacts, and volumes requiring treatment are expected to increase substantially as the South African mining industry matures. Biological treatment of mine waters has been the subject of increasing interest, where sulphate reducing bacteria are employed for the reduction of sulphate to sulphide, precipitation of metals and the production of alkalinity. However, the sulphide if not removed from the system can be oxidised back to sulphate. As a result there have been limitations especially in the provision of technological options that are sustainable over the long-term, where the total sulphur (in its different forms) can be removed from the system. These, however, are the subject of a number of constraints including, importantly, the process capability to remove reduced sulphur from the treated stream, in one of its oxidation states, and thus linearise the biological sulphur cycle. This remains a major bottleneck in the development of biological wastewater treatment technology. Floating sulphur biofilms are observed as surface layers in numerous aquatic sulphide-rich environments, and it has been suggested that they play a role in the biological cycling of sulphur. The use of sulphur biofilms for the removal of elemental sulphur was identified in this study as a possible means for addressing the technological bottleneck, especially in passive wastewater treatment systems. There is, however, little documented information in the literature on the structure of floating sulphur biofilms, the microbial species responsible for their occurrence or bio-process applications of the system. A linear flow channel reactor was developed to simulate natural conditions and enabled the study of floating sulphur biofilm under controlled laboratory conditions. It was observed that these biofilms developed through three distinct stages termed Thin, Sticky and Brittle films. A microprobe study showed the presence of a steep Redox gradient established across (260 to 380 μm) depth of the floating sulphur biofilm of ~ 0 to -200 mV (top to bottom), which correlated with pH and sulphide gradients across the system. Structural investigations embedded in an exopolymeric matrix containing clearly defined channels and pores. Sulphur crystals were found to develop within the biofilm and above a certain size these disengaged and then settled in the liquid phase below the biofilm. These features, together with the ability of the biofilm to remain suspended at the air/water interface thus provide the surface requirement, and indicate that these structures may be understood as “true” biofilms. In order to study an apparent functional differentiation within the floating sulphur biofilm system, a method was developed to expand its various components over a 13 cm length of agarose tube and across which an oxygen/sulphide gradient was established. This was done by inserting a sulphide plug in the bottom of the tube, overlaying this with the biofilm mixed and suspended in agarose and leaving the tube to open air. After allowing for growth, the different components of the microbial population occurring at various levels across the oxygen/sulphide gradient were sampled. The microbial population was found to resort in distinct functional layers. Aerobes including Acidithiobacillus and Azoarcus, Acidithiobacillus, Thiothrix, Thiovirga and Sulfurimonas were found in the upper oxidised layer. Aerobe and facultative anaerobes such as Chryseobacterium, Bacteroides and Planococcus were found in the middle and heterotrophic anaerobes such as Brevundimonas and uncultured anaerobes were found in the bottom anoxic layer. This enabled the development of a first descriptive structural/functional model accounting for the performance of floating sulphur biofilms. The potential of the floating sulphur biofilm for use as a bioprocess unit operation for sulphide removal in lignocellulose-based low-flow passive systems for acid mine drainage wastewater treatment was investigated. The linear flow channel reactor was scaled up and it was shown that the optimum sulphide removal of 74 % and sulphur recovery of 60 % could be achieved at 20 °C. In a further scale up of the linear channel reactor, the floating sulphur biofilm reactor was developed and operated. Sulphide removal and sulphur recovery of 65 and 56 % respectively was measured in the process. An understanding of the nature and function of floating sulphur biofilms and the further development of their potential application in sulphide removal in aquatic systems may provide a useful contribution to the treatment of acid mine drainage and other sulphidic wastewaters.
- Full Text:
- Date Issued: 2008
Franchising a full service restaurant concept : a case study
- Authors: Thomson, Guy
- Date: 2008
- Subjects: Franchises (Retail trade) -- South Africa -- Eastern Cape , Franchises (Retail trade) -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8728 , http://hdl.handle.net/10948/874 , Franchises (Retail trade) -- South Africa -- Eastern Cape , Franchises (Retail trade) -- Management
- Description: This treatise investigates the restaurant industry, entrepreneurship, franchising and restaurant franchising in order to develop a model that will enable a full service restaurant concept to be converted into a successful franchise system. Restaurants play a significant role in our lifestyle, and dining out is a favoured social activity. The industry plays an important role in the transfer of skills as many people start working in the restaurant industry before moving onto more formal careers. The restaurant industry offers many opportunities for entrepreneurial activity as a result of the relatively low barriers to entry. Entrepreneurship is the pursuit of opportunity regardless of the resources at hand and it requires a willingness to take calculated risks in order to build something of value from virtually nothing. The success of emerging economies such as China and India has proven that the only growth sectors in these economies are small and medium enterprises, which are driven by entrepreneurs. Franchising is considered to be a viable growth strategy for small business as it provides a means of raising capital and a method of expanding the business in a relatively low risk manner. There are many well established restaurant franchise brands that originated in South Africa, starting out as successful single outlets and then by means of the business format franchise model, developed into multi unit franchise systems. There are certain basic generic steps that must be followed when developing a franchise system. This was verified by the empirical study of this treatise which was conducted as a single unit case study on the Dulce Franchise Group. Finally, as a result of the analysis of the literature study and the findings of the case study, a restaurant franchise conversion model was developed.
- Full Text:
- Date Issued: 2008
- Authors: Thomson, Guy
- Date: 2008
- Subjects: Franchises (Retail trade) -- South Africa -- Eastern Cape , Franchises (Retail trade) -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8728 , http://hdl.handle.net/10948/874 , Franchises (Retail trade) -- South Africa -- Eastern Cape , Franchises (Retail trade) -- Management
- Description: This treatise investigates the restaurant industry, entrepreneurship, franchising and restaurant franchising in order to develop a model that will enable a full service restaurant concept to be converted into a successful franchise system. Restaurants play a significant role in our lifestyle, and dining out is a favoured social activity. The industry plays an important role in the transfer of skills as many people start working in the restaurant industry before moving onto more formal careers. The restaurant industry offers many opportunities for entrepreneurial activity as a result of the relatively low barriers to entry. Entrepreneurship is the pursuit of opportunity regardless of the resources at hand and it requires a willingness to take calculated risks in order to build something of value from virtually nothing. The success of emerging economies such as China and India has proven that the only growth sectors in these economies are small and medium enterprises, which are driven by entrepreneurs. Franchising is considered to be a viable growth strategy for small business as it provides a means of raising capital and a method of expanding the business in a relatively low risk manner. There are many well established restaurant franchise brands that originated in South Africa, starting out as successful single outlets and then by means of the business format franchise model, developed into multi unit franchise systems. There are certain basic generic steps that must be followed when developing a franchise system. This was verified by the empirical study of this treatise which was conducted as a single unit case study on the Dulce Franchise Group. Finally, as a result of the analysis of the literature study and the findings of the case study, a restaurant franchise conversion model was developed.
- Full Text:
- Date Issued: 2008
French Research Director visits Rhodes
- Authors: Phiri, Aretha
- Date: 2008
- Language: English
- Type: Article
- Identifier: vital:7209 , http://hdl.handle.net/10962/d1006415
- Description: Dr Fethi Bedioui, a research director from the Centre National de la Recherche Scientifique (CNRS) in Paris, recently spent two weeks in the Department of Chemistry working with Professor Tebello Nyokong's research group.
- Full Text:
- Date Issued: 2008
- Authors: Phiri, Aretha
- Date: 2008
- Language: English
- Type: Article
- Identifier: vital:7209 , http://hdl.handle.net/10962/d1006415
- Description: Dr Fethi Bedioui, a research director from the Centre National de la Recherche Scientifique (CNRS) in Paris, recently spent two weeks in the Department of Chemistry working with Professor Tebello Nyokong's research group.
- Full Text:
- Date Issued: 2008
From content to conversation: can cellphones be used for journalism?
- Authors: Berger, Guy
- Date: 2008
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159310 , vital:40286 , https://hdl.handle.net/10520/EJC140074
- Description: Rhodes' School of Journalism and Media Studies has R8m to try and turn cellphones into interactive journalistic devices over the next four years. The work takes place under a project titled "Iindaba Ziyafika" - meaning "the news is coming".
- Full Text:
- Date Issued: 2008
- Authors: Berger, Guy
- Date: 2008
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159310 , vital:40286 , https://hdl.handle.net/10520/EJC140074
- Description: Rhodes' School of Journalism and Media Studies has R8m to try and turn cellphones into interactive journalistic devices over the next four years. The work takes place under a project titled "Iindaba Ziyafika" - meaning "the news is coming".
- Full Text:
- Date Issued: 2008
From Control to Confusion: The Changing Role of Administration Boards in South Africa, 1971–1983 by Simon Bekker and Richard Humphries
- Helliker, Kirk D, Atkinson, Doreen
- Authors: Helliker, Kirk D , Atkinson, Doreen
- Date: 2008
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/144789 , vital:38379 , DOI: 10.1080/02533958508628694
- Description: Book review: Kirk Helliker and Doreen Atkinson (1985) From Control to Confusion: The Changing Role of Administration Boards in South Africa, 1971–1983 by Simon Bekker and Richard Humphries.
- Full Text:
- Date Issued: 2008
- Authors: Helliker, Kirk D , Atkinson, Doreen
- Date: 2008
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/144789 , vital:38379 , DOI: 10.1080/02533958508628694
- Description: Book review: Kirk Helliker and Doreen Atkinson (1985) From Control to Confusion: The Changing Role of Administration Boards in South Africa, 1971–1983 by Simon Bekker and Richard Humphries.
- Full Text:
- Date Issued: 2008
Fungal remediation of winery and distillery wastewaters using Trametes pubescens MB 89 and the enhanced production of a high-value enzyme therein
- Authors: Strong, Peter James
- Date: 2008
- Subjects: Fungal remediation Distilleries -- Waste disposal Wine and wine making -- Waste disposal Bioremediation Laccase Enzymes -- Biotechnology
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3932 , http://hdl.handle.net/10962/d1003991
- Description: In this study white-rot fungi were investigated for their efficiency at distillery wastewater remediation and the production of laccase as a valuable by-product. Distillery wastewaters are high in organic load and low in pH. The presence of phenolic compounds can lead to extremely colour-rich wastewaters and can be toxic to microorganisms. The presence of the inorganic ions may also affect biological treatment. White-rot fungi are unique among eukaryotic or prokaryotic microbes in possessing powerful oxidative enzyme systems that can degrade lignin to carbon dioxide. These ligninolytic enzymes, such as lignin peroxidase, manganese peroxidase and laccase, are capable of degrading a vast range of toxic, recalcitrant environmental pollutants and this makes the white-rot fungi strong candidates for the bioremediation of polluted soils and waters. The laccase enzyme alone has shown remediation potential in wastewaters such as beer production effluent, olive mill wastewater, alcohol distillery wastes, dye-containing wastewaters from the textile industry as well as wastewaters from the paper and pulp industry. It has been shown to be capable of remediating soils and waters polluted with chlorinated phenolic compounds, polyaromatic hydrocarbons, nitrosubstituted compounds and fungicides, herbicides and insecticides.
- Full Text:
- Date Issued: 2008
- Authors: Strong, Peter James
- Date: 2008
- Subjects: Fungal remediation Distilleries -- Waste disposal Wine and wine making -- Waste disposal Bioremediation Laccase Enzymes -- Biotechnology
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3932 , http://hdl.handle.net/10962/d1003991
- Description: In this study white-rot fungi were investigated for their efficiency at distillery wastewater remediation and the production of laccase as a valuable by-product. Distillery wastewaters are high in organic load and low in pH. The presence of phenolic compounds can lead to extremely colour-rich wastewaters and can be toxic to microorganisms. The presence of the inorganic ions may also affect biological treatment. White-rot fungi are unique among eukaryotic or prokaryotic microbes in possessing powerful oxidative enzyme systems that can degrade lignin to carbon dioxide. These ligninolytic enzymes, such as lignin peroxidase, manganese peroxidase and laccase, are capable of degrading a vast range of toxic, recalcitrant environmental pollutants and this makes the white-rot fungi strong candidates for the bioremediation of polluted soils and waters. The laccase enzyme alone has shown remediation potential in wastewaters such as beer production effluent, olive mill wastewater, alcohol distillery wastes, dye-containing wastewaters from the textile industry as well as wastewaters from the paper and pulp industry. It has been shown to be capable of remediating soils and waters polluted with chlorinated phenolic compounds, polyaromatic hydrocarbons, nitrosubstituted compounds and fungicides, herbicides and insecticides.
- Full Text:
- Date Issued: 2008
Gender activism: perspectives on the South African transition, institutional cultures & everyday life
- Authors: Ruiters, Greg
- Date: 2008
- Subjects: Women's rights -- South Africa Women -- Crimes against -- South Africa Women -- Legal status, laws, etc. -- South Africa Women and democracy -- South Africa Feminism -- South Africa Women in education -- South Africa
- Language: English
- Type: Text
- Identifier: http://hdl.handle.net/10962/2476 , vital:20296 , ISBN 9780868104508 , ISBN 0868104507
- Description: Digitised by Rhodes University Library on behalf of the Institute of Social and Economic Research (ISER)
- Full Text:
- Date Issued: 2008
- Authors: Ruiters, Greg
- Date: 2008
- Subjects: Women's rights -- South Africa Women -- Crimes against -- South Africa Women -- Legal status, laws, etc. -- South Africa Women and democracy -- South Africa Feminism -- South Africa Women in education -- South Africa
- Language: English
- Type: Text
- Identifier: http://hdl.handle.net/10962/2476 , vital:20296 , ISBN 9780868104508 , ISBN 0868104507
- Description: Digitised by Rhodes University Library on behalf of the Institute of Social and Economic Research (ISER)
- Full Text:
- Date Issued: 2008
Gender and development: a study of the impact of selected cooperatives in the Eastern Cape Province
- Sithole, Noluthando Victoria
- Authors: Sithole, Noluthando Victoria
- Date: 2008
- Subjects: Cooperative societies -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Women in development -- South Africa -- Eastern Cape , Women in cooperative societies -- South Africa -- Eastern Cape , Poverty -- South Africa -- Easttern Cape , Gender identity -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M SW
- Identifier: vital:11752 , http://hdl.handle.net/10353/194 , Cooperative societies -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Women in development -- South Africa -- Eastern Cape , Women in cooperative societies -- South Africa -- Eastern Cape , Poverty -- South Africa -- Easttern Cape , Gender identity -- South Africa -- Eastern Cape
- Description: In 1994 South Africa took a new direction towards democratic governance. This led to a change of government principles and approaches in leading the country. The people became the centre of the country’s development, resulting in the adoption of people-centred development and people-driven strategies. A special focus highlighted women as in the category which had endured poverty the most in South Africa. The South African government, through its various departments, has a responsibility to improve the lives of South Africans, and the Eastern Cape Provincial Department of Social Development is one of the departments which has committed itself towards changing the lives of women in the community. As a strategy to implement community development, the Provincial Department of Social Development is funding women cooperative programmes. Women cooperatives are a relatively new endeavour to address poverty within the democratic South Africa. The study supports the notion and attempts to show the impact that women have on community development. The researcher began studying the trends and realized that the funds allocated and the funding process of community development programmes by Provincial Department of Social Development is not working towards empowering communities. A purposive sampling method was used to select two women cooperative programmes in the Chris Hani District Municipality to explore the role of women in community development in the current context of democracy and social welfare transformation in South Africa; to explore the impact of gender through women cooperatives on community development and to explore strategies for the empowerment of women through community development intervention. The design of the study is qualitative, exploratory and descriptive in nature. The study also adapted evaluation and gender analysis methods to verify the effectiveness of women programmes. The study recommends that women be empowered with skills, knowledge, resources and opportunities to enable them to be more effective in community development.
- Full Text:
- Date Issued: 2008
- Authors: Sithole, Noluthando Victoria
- Date: 2008
- Subjects: Cooperative societies -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Women in development -- South Africa -- Eastern Cape , Women in cooperative societies -- South Africa -- Eastern Cape , Poverty -- South Africa -- Easttern Cape , Gender identity -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M SW
- Identifier: vital:11752 , http://hdl.handle.net/10353/194 , Cooperative societies -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Women in development -- South Africa -- Eastern Cape , Women in cooperative societies -- South Africa -- Eastern Cape , Poverty -- South Africa -- Easttern Cape , Gender identity -- South Africa -- Eastern Cape
- Description: In 1994 South Africa took a new direction towards democratic governance. This led to a change of government principles and approaches in leading the country. The people became the centre of the country’s development, resulting in the adoption of people-centred development and people-driven strategies. A special focus highlighted women as in the category which had endured poverty the most in South Africa. The South African government, through its various departments, has a responsibility to improve the lives of South Africans, and the Eastern Cape Provincial Department of Social Development is one of the departments which has committed itself towards changing the lives of women in the community. As a strategy to implement community development, the Provincial Department of Social Development is funding women cooperative programmes. Women cooperatives are a relatively new endeavour to address poverty within the democratic South Africa. The study supports the notion and attempts to show the impact that women have on community development. The researcher began studying the trends and realized that the funds allocated and the funding process of community development programmes by Provincial Department of Social Development is not working towards empowering communities. A purposive sampling method was used to select two women cooperative programmes in the Chris Hani District Municipality to explore the role of women in community development in the current context of democracy and social welfare transformation in South Africa; to explore the impact of gender through women cooperatives on community development and to explore strategies for the empowerment of women through community development intervention. The design of the study is qualitative, exploratory and descriptive in nature. The study also adapted evaluation and gender analysis methods to verify the effectiveness of women programmes. The study recommends that women be empowered with skills, knowledge, resources and opportunities to enable them to be more effective in community development.
- Full Text:
- Date Issued: 2008
Gendering children's lives: TV fiction for South African kids
- Boshoff, Priscilla A, Prinsloo, Jeanne
- Authors: Boshoff, Priscilla A , Prinsloo, Jeanne
- Date: 2008
- Language: English
- Type: text , book
- Identifier: vital:38264 , ISBN 9780868104508 , http://hdl.handle.net/10962/2476
- Description: Gendering children's lives: TV fiction for South African kids
- Full Text:
- Date Issued: 2008
- Authors: Boshoff, Priscilla A , Prinsloo, Jeanne
- Date: 2008
- Language: English
- Type: text , book
- Identifier: vital:38264 , ISBN 9780868104508 , http://hdl.handle.net/10962/2476
- Description: Gendering children's lives: TV fiction for South African kids
- Full Text:
- Date Issued: 2008
Geographic variation in the susceptibility of false colding Moth, Thaumatotibia Leucotreta, populations to a granulovirus (CrleGV-SA)
- Authors: Opoku-Debrah, John Kwadwo
- Date: 2008
- Subjects: Cryptophlebia leucotreta , Cryptophlebia leucotreta -- Control , Pests -- Biological control , Citrus -- Diseases and pests
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10586 , http://hdl.handle.net/10948/984 , Cryptophlebia leucotreta , Cryptophlebia leucotreta -- Control , Pests -- Biological control , Citrus -- Diseases and pests
- Description: The false codling moth (FCM), Thaumatotibia (=Cryptophlebia) leucotreta (Meyrick) (Lepidoptera: Tortricidae) is a serious pest of citrus and other crops in Sub-Saharan Africa. The introduction of the Cryptophlebia leucotreta granulovirus (CrleGV-SA) Cryptogran and Cryptex (biopesticides) has proven to be very effective in the control of FCM. However, markedly lower susceptibility of some codling moth (CM), Cydia pomonella (L.) populations to Cydia pomonella granulovirus (CpGV-M), another granulovirus product used in the control of CM’s in Europe have been reported. Genetic differences between FCM populations in South Africa have also been established. It is therefore possible that differences in the susceptibility of these geographically distinct FCM populations to CrleGV-SA might also exist. To investigate this phenomenon, a benchmark for pathogenecity was established. In continuation of previous work with Cryptogran against the 1st and 5th instar FCM larvae, dose-response relationships were established for all five larval instars of FCM. In surface dose-response bioassays, the LC50 values for the 2nd, 3rd and 4th instars were calculated to be 4.516 x 104, 1.662 x 105 and 2.205 x 106 occlusion bodies (OBs)/ml, respectively. The LC90 values for the 2nd, 3rd and 4th instars were calculated to be 4.287 x 106, 9.992 x 106 and 1.661 x 108 OBs/ml, respectively. Susceptibility to CrleGV-SA was found to decline with larval stage and increase with time of exposure. The protocol was used in guiding bioassays with field collected FCM larvae. Laboratory assays conducted with Cryptogran (at 1.661 x 108 OBs/ml) against field collected FCM larvae from Addo, Kirkwood, Citrusdal and Clanwilliam as well as a standard laboratory colony, showed a significant difference in pathogenecity in only one case. This significant difference was observed between 5th instars from the Addo colony and 5th instars from the other populations. Four geographically distinct FCM colonies from Addo, Citrusdal, Marble Hall and Nelspruit were also established. Since Cryptogran and Cryptex are always targeted against 1st instar FCM larvae in the field, further comparative laboratory assays were conducted with the Addo colony and an old laboratory colony. Cryptogran was significantly more pathogenic than Cryptex against both the Addo and the old colony. However, a high level of heterogeneity was observed in responses within each population.
- Full Text:
- Date Issued: 2008
- Authors: Opoku-Debrah, John Kwadwo
- Date: 2008
- Subjects: Cryptophlebia leucotreta , Cryptophlebia leucotreta -- Control , Pests -- Biological control , Citrus -- Diseases and pests
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10586 , http://hdl.handle.net/10948/984 , Cryptophlebia leucotreta , Cryptophlebia leucotreta -- Control , Pests -- Biological control , Citrus -- Diseases and pests
- Description: The false codling moth (FCM), Thaumatotibia (=Cryptophlebia) leucotreta (Meyrick) (Lepidoptera: Tortricidae) is a serious pest of citrus and other crops in Sub-Saharan Africa. The introduction of the Cryptophlebia leucotreta granulovirus (CrleGV-SA) Cryptogran and Cryptex (biopesticides) has proven to be very effective in the control of FCM. However, markedly lower susceptibility of some codling moth (CM), Cydia pomonella (L.) populations to Cydia pomonella granulovirus (CpGV-M), another granulovirus product used in the control of CM’s in Europe have been reported. Genetic differences between FCM populations in South Africa have also been established. It is therefore possible that differences in the susceptibility of these geographically distinct FCM populations to CrleGV-SA might also exist. To investigate this phenomenon, a benchmark for pathogenecity was established. In continuation of previous work with Cryptogran against the 1st and 5th instar FCM larvae, dose-response relationships were established for all five larval instars of FCM. In surface dose-response bioassays, the LC50 values for the 2nd, 3rd and 4th instars were calculated to be 4.516 x 104, 1.662 x 105 and 2.205 x 106 occlusion bodies (OBs)/ml, respectively. The LC90 values for the 2nd, 3rd and 4th instars were calculated to be 4.287 x 106, 9.992 x 106 and 1.661 x 108 OBs/ml, respectively. Susceptibility to CrleGV-SA was found to decline with larval stage and increase with time of exposure. The protocol was used in guiding bioassays with field collected FCM larvae. Laboratory assays conducted with Cryptogran (at 1.661 x 108 OBs/ml) against field collected FCM larvae from Addo, Kirkwood, Citrusdal and Clanwilliam as well as a standard laboratory colony, showed a significant difference in pathogenecity in only one case. This significant difference was observed between 5th instars from the Addo colony and 5th instars from the other populations. Four geographically distinct FCM colonies from Addo, Citrusdal, Marble Hall and Nelspruit were also established. Since Cryptogran and Cryptex are always targeted against 1st instar FCM larvae in the field, further comparative laboratory assays were conducted with the Addo colony and an old laboratory colony. Cryptogran was significantly more pathogenic than Cryptex against both the Addo and the old colony. However, a high level of heterogeneity was observed in responses within each population.
- Full Text:
- Date Issued: 2008
Global diversity of mayflies (Ephemeroptera, Insecta) in freshwater
- Barber-James, Helen M, Gattolliat, J-L, Sartori, Michel, Hubbard, Michael D
- Authors: Barber-James, Helen M , Gattolliat, J-L , Sartori, Michel , Hubbard, Michael D
- Date: 2008
- Language: English
- Type: text , Article
- Identifier: vital:6895 , http://hdl.handle.net/10962/d1011655
- Description: The extant global Ephemeroptera fauna is represented by over 3,000 described species in 42 families and more than 400 genera. The highest generic diversity occurs in the Neotropics, with a correspondingly high species diversity, while the Palaearctic has the lowest generic diversity, but a high species diversity. Such distribution patterns may relate to how long evolutionary processes have been carrying on in isolation in a bioregion. Over an extended period, there may be extinction of species, but evolution of more genera. Dramatic extinction events such as the K-T mass extinction have affected current mayfly diversity and distribution. Climatic history plays an important role in the rate of speciation in an area, with regions which have been climatically stable over long periods having fewer species per genus, when compared to regions subjected to climatic stresses, such as glaciation. A total of 13 families are endemic to specific bioregions, with eight among them being monospecific. Most of these have restricted distributions which may be the result of them being the relict of a previously more diverse, but presently almost completely extinct family, or may be the consequence of vicariance events, resulting from evolution due to long-term isolation.
- Full Text:
- Date Issued: 2008
- Authors: Barber-James, Helen M , Gattolliat, J-L , Sartori, Michel , Hubbard, Michael D
- Date: 2008
- Language: English
- Type: text , Article
- Identifier: vital:6895 , http://hdl.handle.net/10962/d1011655
- Description: The extant global Ephemeroptera fauna is represented by over 3,000 described species in 42 families and more than 400 genera. The highest generic diversity occurs in the Neotropics, with a correspondingly high species diversity, while the Palaearctic has the lowest generic diversity, but a high species diversity. Such distribution patterns may relate to how long evolutionary processes have been carrying on in isolation in a bioregion. Over an extended period, there may be extinction of species, but evolution of more genera. Dramatic extinction events such as the K-T mass extinction have affected current mayfly diversity and distribution. Climatic history plays an important role in the rate of speciation in an area, with regions which have been climatically stable over long periods having fewer species per genus, when compared to regions subjected to climatic stresses, such as glaciation. A total of 13 families are endemic to specific bioregions, with eight among them being monospecific. Most of these have restricted distributions which may be the result of them being the relict of a previously more diverse, but presently almost completely extinct family, or may be the consequence of vicariance events, resulting from evolution due to long-term isolation.
- Full Text:
- Date Issued: 2008
Growth of the South African abalone (Haliotis Midae) on three diets, under commercial conditions
- Authors: Makhande, Emmanuel Denis
- Date: 2008
- Subjects: Haliotis midae -- South Africa , Abalone culture -- South Africa , Abalones -- Nutrition -- South Africa , Abalones -- Physiology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10706 , http://hdl.handle.net/10948/755 , Haliotis midae -- South Africa , Abalone culture -- South Africa , Abalones -- Nutrition -- South Africa , Abalones -- Physiology -- South Africa
- Description: Haliotis midae is the cornerstone of the South African abalone fishery. For more than a decade, the wild abalone stock of South Africa has suffered decline due to over-exploitation and illegal activities such as poaching. Prior to 1970, no regulations were in place concerning the annual landings. As a result the fishery was exploited as if it were an infinite resource. It is this initial uncontrolled harvesting (regardless of age) and poaching that has driven the abalone resource decline. Due to the slow growth rate exhibited by abalone as a species, natural replenishment of wild stock following exploitation and poaching was far below the rate of exploitation of this resource. Studies on the growth of abalone have mainly been conducted under laboratory conditions. The purpose of this study was to measure the growth of abalone, fed different diets, under commercial culture conditions. Three food types were used namely; commercial pellets, seaweed (Ulva spp.) and dried kelp bars (Ecklonia maxima). Four diets were obtained from the three food types namely; combination of commercial pellets and seaweed (Diet A), commercial pellets only (Diet B), seaweed only (Diet C) and dried kelp bars only (Diet D). The food types used in this study represent both artificial (Commercial pellets) and natural feeds (seaweed and kelp) used in commercial abalone culture. The growth of two cohorts (40-50 mm and 50-60 mm) was followed over a 426 day period, with data for the first 183 days being used for statistical analysis to determine performance of a given diet. The best growth rates were found in abalone fed Diet A (40-50 mm: 2.64 mm.month-1; 50-60 mm 2.78: mm.month-1) and B (40-50 mm: 2.20 mm.month-1; 50-60 mm: 2.35: mm.month-1). These (Diets A and B) gave higher growth rates when compared to Diets C and D (natural diets), whose growth rates ranged between 0.50 mm.month-1 and 1.71 mm.month-1 for both cohorts. Also observed in this study was that, the mixture of formulated diet and seaweed gave better growth than formulated diet given exclusively.
- Full Text:
- Date Issued: 2008
- Authors: Makhande, Emmanuel Denis
- Date: 2008
- Subjects: Haliotis midae -- South Africa , Abalone culture -- South Africa , Abalones -- Nutrition -- South Africa , Abalones -- Physiology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10706 , http://hdl.handle.net/10948/755 , Haliotis midae -- South Africa , Abalone culture -- South Africa , Abalones -- Nutrition -- South Africa , Abalones -- Physiology -- South Africa
- Description: Haliotis midae is the cornerstone of the South African abalone fishery. For more than a decade, the wild abalone stock of South Africa has suffered decline due to over-exploitation and illegal activities such as poaching. Prior to 1970, no regulations were in place concerning the annual landings. As a result the fishery was exploited as if it were an infinite resource. It is this initial uncontrolled harvesting (regardless of age) and poaching that has driven the abalone resource decline. Due to the slow growth rate exhibited by abalone as a species, natural replenishment of wild stock following exploitation and poaching was far below the rate of exploitation of this resource. Studies on the growth of abalone have mainly been conducted under laboratory conditions. The purpose of this study was to measure the growth of abalone, fed different diets, under commercial culture conditions. Three food types were used namely; commercial pellets, seaweed (Ulva spp.) and dried kelp bars (Ecklonia maxima). Four diets were obtained from the three food types namely; combination of commercial pellets and seaweed (Diet A), commercial pellets only (Diet B), seaweed only (Diet C) and dried kelp bars only (Diet D). The food types used in this study represent both artificial (Commercial pellets) and natural feeds (seaweed and kelp) used in commercial abalone culture. The growth of two cohorts (40-50 mm and 50-60 mm) was followed over a 426 day period, with data for the first 183 days being used for statistical analysis to determine performance of a given diet. The best growth rates were found in abalone fed Diet A (40-50 mm: 2.64 mm.month-1; 50-60 mm 2.78: mm.month-1) and B (40-50 mm: 2.20 mm.month-1; 50-60 mm: 2.35: mm.month-1). These (Diets A and B) gave higher growth rates when compared to Diets C and D (natural diets), whose growth rates ranged between 0.50 mm.month-1 and 1.71 mm.month-1 for both cohorts. Also observed in this study was that, the mixture of formulated diet and seaweed gave better growth than formulated diet given exclusively.
- Full Text:
- Date Issued: 2008
Handling multiple levels of data and multiple research questions in an embedded case study : methodological challenges
- Authors: Edwards, David J A
- Date: 2008
- Language: English
- Type: Article
- Identifier: vital:6247 , http://hdl.handle.net/10962/d1007865
- Description: Hougaard et al. report an embedded case study in which nine socially phobic clients were treated as part of a therapy program, which incorporated individual and group therapy and which was largely delivered by trainee clinicians. An important focus of the report is on the effectiveness of their treatment model. This commentary draws attention to the size and complexity of the available data, and it suggests ways in which the use of a more explicitly interpretative methodology can draw out additional dimensions of the data and allow a more systematic contribution to be made to the development of clinical theory.
- Full Text:
- Date Issued: 2008
- Authors: Edwards, David J A
- Date: 2008
- Language: English
- Type: Article
- Identifier: vital:6247 , http://hdl.handle.net/10962/d1007865
- Description: Hougaard et al. report an embedded case study in which nine socially phobic clients were treated as part of a therapy program, which incorporated individual and group therapy and which was largely delivered by trainee clinicians. An important focus of the report is on the effectiveness of their treatment model. This commentary draws attention to the size and complexity of the available data, and it suggests ways in which the use of a more explicitly interpretative methodology can draw out additional dimensions of the data and allow a more systematic contribution to be made to the development of clinical theory.
- Full Text:
- Date Issued: 2008
Harvesting strategies of fuelwood and kraalwood users at Machibi : identifying the driving factors and feedbacks
- Authors: Scheepers, Kelly
- Date: 2008
- Subjects: Fuelwood -- South Africa -- Eastern Cape Forest ecology -- South Africa -- Eastern Cape Natural resources -- South Africa -- Eastern Cape Natural resources -- Management -- South Africa -- Eastern Cape Conservation of natural resources -- South Africa -- Eastern Cape Landscape protection -- Economic aspects -- South Africa -- Eastern Cape Fuelwood consumption -- South Africa -- Eastern Cape Fuelwood consumption -- Economic aspects -- South Africa -- Eastern Cape Forests and forestry -- South Africa -- Eastern Cape Fuelwood conservation -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4765 , http://hdl.handle.net/10962/d1007167
- Description: Forest and woodland ecosystems provide a variety of natural resources such as fuelwood, brushwood and kraal posts to local communities, as well as possess important cultural and spiritual value. However, many forests and woodlands worldwide have been unsustainably used and managed. Thus, under pressure from the international conservation community to recognise the importance of people's relationships with their surrounding natural environment, particularly for the natural resources it can provide, and given a move away from the management of forests and woodlands for sustained yields, and according to simple cause and effect models, in favour of systems approaches, South Africa has developed some of the most progressive natural resource management policies in the world. Nevertheless, for these policies to be sensitive to local contexts, there remains a need for a better understanding of how local people in different contexts, determine forest and woodland ecosystems to be of use to them, and what 'usefulness' means to different groups of resources users. This is a case study, which examines the role of fuelwood, brushwood and kraal posts in the rural livelihoods of the people of Machibi village, located in the Eastern Cape province of South Africa, through people's preferences for particular landscapes and species, accessed for these purposes, and the trade-offs people make between resource availability and resource accessibility. Key objectives of the study are to 1) determine the preferred landscapes and species for fuelwood, brushwood and kraal posts at Machibi, 2) determine the landscapes and species actually used for fuelwood, brushwood and kraal posts, and 3) with the help of a conceptual model, and using iterative modelling as a tool, determine the factors that influence people's harvesting strategies in terms of the costs and benefits associated with the different landscape and species options. On the basis of this knowledge, the study provides some guiding principles for the better use and management of these landscapes and species for fuelwood, brushwood and kraal posts. An innovative research approach and methodology that integrates social and ecological systems, works across disciplines, and draws on different types of knowledge is used to develop and test a conceptual model of the harvesting strategies of fuelwood and kraalwood users at Machibi. Participatory methods such as workshops, participatory resource mapping, ranking exercises and trend-lines were used to tap into local knowledge while plotless vegetation sampling and GIS maps were used to capture the scientific information. Results showed that people did not always use the landscapes and species they preferred. However, the local people did behave in a rational manner by weighing up the returns from harvesting and accessibility costs associated with the respective options available to them, before selecting the option(s) associated with the greatest net benefits. At the landscape level, people made trade-offs between the returns from harvesting and the accessibility costs of using particular landscapes in addition to costs associated with the physical work of harvesting fuelwood, brushwood or kraal posts from these landscapes. At the species level, people made trade-offs between the returns from harvesting and the accessibility costs of harvesting particular species for fuelwood, brushwood and kraal posts, or the costs of commercial alternatives. Costbenefit factors that influenced people's resource use patterns also differed across landscapes and species for fuelwood, brushwood and kraal posts, respectively. Consequently, a range of diverse and flexible management options and strategies is recommended for the wise use and management of these landscapes and species, focused on short, medium and long term goals. These strategies examine the use of cost - benefit incentives to influence people’s landscape and species use patterns.
- Full Text:
- Date Issued: 2008
- Authors: Scheepers, Kelly
- Date: 2008
- Subjects: Fuelwood -- South Africa -- Eastern Cape Forest ecology -- South Africa -- Eastern Cape Natural resources -- South Africa -- Eastern Cape Natural resources -- Management -- South Africa -- Eastern Cape Conservation of natural resources -- South Africa -- Eastern Cape Landscape protection -- Economic aspects -- South Africa -- Eastern Cape Fuelwood consumption -- South Africa -- Eastern Cape Fuelwood consumption -- Economic aspects -- South Africa -- Eastern Cape Forests and forestry -- South Africa -- Eastern Cape Fuelwood conservation -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4765 , http://hdl.handle.net/10962/d1007167
- Description: Forest and woodland ecosystems provide a variety of natural resources such as fuelwood, brushwood and kraal posts to local communities, as well as possess important cultural and spiritual value. However, many forests and woodlands worldwide have been unsustainably used and managed. Thus, under pressure from the international conservation community to recognise the importance of people's relationships with their surrounding natural environment, particularly for the natural resources it can provide, and given a move away from the management of forests and woodlands for sustained yields, and according to simple cause and effect models, in favour of systems approaches, South Africa has developed some of the most progressive natural resource management policies in the world. Nevertheless, for these policies to be sensitive to local contexts, there remains a need for a better understanding of how local people in different contexts, determine forest and woodland ecosystems to be of use to them, and what 'usefulness' means to different groups of resources users. This is a case study, which examines the role of fuelwood, brushwood and kraal posts in the rural livelihoods of the people of Machibi village, located in the Eastern Cape province of South Africa, through people's preferences for particular landscapes and species, accessed for these purposes, and the trade-offs people make between resource availability and resource accessibility. Key objectives of the study are to 1) determine the preferred landscapes and species for fuelwood, brushwood and kraal posts at Machibi, 2) determine the landscapes and species actually used for fuelwood, brushwood and kraal posts, and 3) with the help of a conceptual model, and using iterative modelling as a tool, determine the factors that influence people's harvesting strategies in terms of the costs and benefits associated with the different landscape and species options. On the basis of this knowledge, the study provides some guiding principles for the better use and management of these landscapes and species for fuelwood, brushwood and kraal posts. An innovative research approach and methodology that integrates social and ecological systems, works across disciplines, and draws on different types of knowledge is used to develop and test a conceptual model of the harvesting strategies of fuelwood and kraalwood users at Machibi. Participatory methods such as workshops, participatory resource mapping, ranking exercises and trend-lines were used to tap into local knowledge while plotless vegetation sampling and GIS maps were used to capture the scientific information. Results showed that people did not always use the landscapes and species they preferred. However, the local people did behave in a rational manner by weighing up the returns from harvesting and accessibility costs associated with the respective options available to them, before selecting the option(s) associated with the greatest net benefits. At the landscape level, people made trade-offs between the returns from harvesting and the accessibility costs of using particular landscapes in addition to costs associated with the physical work of harvesting fuelwood, brushwood or kraal posts from these landscapes. At the species level, people made trade-offs between the returns from harvesting and the accessibility costs of harvesting particular species for fuelwood, brushwood and kraal posts, or the costs of commercial alternatives. Costbenefit factors that influenced people's resource use patterns also differed across landscapes and species for fuelwood, brushwood and kraal posts, respectively. Consequently, a range of diverse and flexible management options and strategies is recommended for the wise use and management of these landscapes and species, focused on short, medium and long term goals. These strategies examine the use of cost - benefit incentives to influence people’s landscape and species use patterns.
- Full Text:
- Date Issued: 2008
Have the continuous improvement (CI) efforts at Absa Bank's Horizon Medium Business Banking Unit, in the Gauteng West Region successfully addressed the key concepts of continuous improvement as set out by Trollip, 2008?
- Authors: Ndlovu, Sinqobile Khobotho
- Date: 2008
- Subjects: Banks and banking -- Customer services -- South Africa , Organizational effectiveness
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8721 , http://hdl.handle.net/10948/904 , Banks and banking -- Customer services -- South Africa , Organizational effectiveness
- Description: Success in today’s highly competitive financial sector requires an organization to have a sustainable competitive advantage that would distinguish it from the rest. Products offered by financial organizations are naturally the same and the quality of service plays a critical role in terms of creating the much needed competitive advantage. This calls for the implementation of quality initiatives like Continuous improvement (CI). This paper investigates the extent to which CI efforts at the Horizon business unit of Absa corporate and business banking have successfully addressed the key concepts of CI set out by Trollip (2008). A literature survey was undertaken into the elements and benefits of CI. Questionnaires were sent to all employees of the business unit for their views on CI and the impact, they believe it has on the unit’s endeavors to deliver faster, defect free, innovative products/services, whilst achieving tougher goals. In conclusion the research paper led to recommendations to improve the CI efforts at the Horizon business unit. The research also confirmed the importance of the commitment of all employees is essential for the success of CI efforts in improving the quality of service offered by an organization.
- Full Text:
- Date Issued: 2008
- Authors: Ndlovu, Sinqobile Khobotho
- Date: 2008
- Subjects: Banks and banking -- Customer services -- South Africa , Organizational effectiveness
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8721 , http://hdl.handle.net/10948/904 , Banks and banking -- Customer services -- South Africa , Organizational effectiveness
- Description: Success in today’s highly competitive financial sector requires an organization to have a sustainable competitive advantage that would distinguish it from the rest. Products offered by financial organizations are naturally the same and the quality of service plays a critical role in terms of creating the much needed competitive advantage. This calls for the implementation of quality initiatives like Continuous improvement (CI). This paper investigates the extent to which CI efforts at the Horizon business unit of Absa corporate and business banking have successfully addressed the key concepts of CI set out by Trollip (2008). A literature survey was undertaken into the elements and benefits of CI. Questionnaires were sent to all employees of the business unit for their views on CI and the impact, they believe it has on the unit’s endeavors to deliver faster, defect free, innovative products/services, whilst achieving tougher goals. In conclusion the research paper led to recommendations to improve the CI efforts at the Horizon business unit. The research also confirmed the importance of the commitment of all employees is essential for the success of CI efforts in improving the quality of service offered by an organization.
- Full Text:
- Date Issued: 2008
Her master's: the experiences of mature women in postgraduate study
- Authors: Hood, Mary Ann
- Date: 2008
- Subjects: Women graduate students -- South Africa , Women scholars -- South Africa , Women -- Education (Graduate)
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16159 , http://hdl.handle.net/10353/211 , Women graduate students -- South Africa , Women scholars -- South Africa , Women -- Education (Graduate)
- Description: This study explored the experiences of mature women undertaking Master’s degrees at a Historically Disadvantaged Institution of Higher Learning in South Africa. Attaining a Master’s degree is a significant milestone in education and the process may take from one to three, or more, years. The study aims to describe aspects of the women’s experiences of their research journeys and the goal of the study is to present descriptions of these experiences. The methodology is qualitative and uses a critical feminist approach, appropriate to exploring the research questions. A critical feminist stance holds that women experience the world differently to men given the patriarchal structure of society. Emphasis is placed on the primacy of the co-researcher’s perceptions of their experiences. A single method research design was followed using semi-structured interviews. The analysis resulted in the emergence of a number of central themes. Together these reflect the experiences of the co-researchers, although they did not automatically share all the experiences. The findings show that postgraduate study, in the form of a Master’s degree, was found to be transformative, meaningful and worthwhile, although not without difficulties; mainly the demands required of multiple roles within home, community, work, and the university. This study contributes towards the larger body of research within education, in particular in the understanding the experiences of mature women within the field of postgraduate study.
- Full Text:
- Date Issued: 2008
- Authors: Hood, Mary Ann
- Date: 2008
- Subjects: Women graduate students -- South Africa , Women scholars -- South Africa , Women -- Education (Graduate)
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16159 , http://hdl.handle.net/10353/211 , Women graduate students -- South Africa , Women scholars -- South Africa , Women -- Education (Graduate)
- Description: This study explored the experiences of mature women undertaking Master’s degrees at a Historically Disadvantaged Institution of Higher Learning in South Africa. Attaining a Master’s degree is a significant milestone in education and the process may take from one to three, or more, years. The study aims to describe aspects of the women’s experiences of their research journeys and the goal of the study is to present descriptions of these experiences. The methodology is qualitative and uses a critical feminist approach, appropriate to exploring the research questions. A critical feminist stance holds that women experience the world differently to men given the patriarchal structure of society. Emphasis is placed on the primacy of the co-researcher’s perceptions of their experiences. A single method research design was followed using semi-structured interviews. The analysis resulted in the emergence of a number of central themes. Together these reflect the experiences of the co-researchers, although they did not automatically share all the experiences. The findings show that postgraduate study, in the form of a Master’s degree, was found to be transformative, meaningful and worthwhile, although not without difficulties; mainly the demands required of multiple roles within home, community, work, and the university. This study contributes towards the larger body of research within education, in particular in the understanding the experiences of mature women within the field of postgraduate study.
- Full Text:
- Date Issued: 2008
Home range dynamics of spotted grunter, pomadasys commersonnii, in a South African intermittently open estuary
- Authors: O'Connell, Bronwyn Anne
- Date: 2008
- Subjects: Grunts (Fishes) -- South Africa -- Eastern Cape , Pomadasys -- South Africa -- Eastern Cape , Estuaries -- South Africa -- Eastern Cape , Estuarine fishes -- South Africa -- Eastern Cape , Estuarine fishes -- Habitat -- South Africa -- Eastern Cape , Fishery management -- South Africa -- Eastern Cape , Fishes -- Home range , Fishes -- Home range -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5286 , http://hdl.handle.net/10962/d1005130 , Grunts (Fishes) -- South Africa -- Eastern Cape , Pomadasys -- South Africa -- Eastern Cape , Estuaries -- South Africa -- Eastern Cape , Estuarine fishes -- South Africa -- Eastern Cape , Estuarine fishes -- Habitat -- South Africa -- Eastern Cape , Fishery management -- South Africa -- Eastern Cape , Fishes -- Home range , Fishes -- Home range -- South Africa -- Eastern Cape
- Description: The spotted grunter (Pomadasys commersonnii) is an important, estuarine-dependent, fishery species in southern Africa. Since estuaries are essential habitats in the life history of this species, the quantification of area use patterns and movements is important for fisheries management. In this study, acoustic telemetry was used to investigate movements, use of habitat and home range dynamics of spotted grunter in the small intermittently open East Kleinemonde Estuary on the Eastern Cape coast of South Africa. Nine spotted grunter (range: 326-489mm TL) were surgically equipped with uniquely coded acoustic transmitters. Positional fixes were obtained by manual tracking tagged individuals on six days and six nights during five tracking sessions from March to November 2004. In addition, five stationary data-logging receivers, moored at specific locations from the mouth to the top of the estuary provided additional long-term monitoring. Kernel home ranges (95% UD) varied in size (26 296-165 321m²) but were all located in a common high use area situated between 300-1 300m from the estuary mouth, which coincided with the highest abundance of prey items. There was no significant variation in home range size [C² (N = 9, df = 4) = 4.18; p = 0.38] between the temporally segregated tracking sessions (over nine months). The persistence of these home range estimates were confirmed by the long-term data-logging receivers. There was no significant diel variation in home range size [F(4, 64) = 0.05, p = 0.99] or core area size [F(4, 64) = 1.40, p = 0.25]. Fish length showed negative, although not significant, relationships between home range size (p = 0.225); number of home range areas (p = 0.065); core area size (p = 0.512) and home range length (p = 0.320). Use of habitat and home range dynamics of spotted grunter in the East Kleinemonde Estuary were consistent over the nine month study period, and they appeared to be influenced more by biotic than abiotic factors. However, when the mouth opened at the end of the study, most tagged fish vacated their home ranges and emigrated to sea.
- Full Text:
- Date Issued: 2008
- Authors: O'Connell, Bronwyn Anne
- Date: 2008
- Subjects: Grunts (Fishes) -- South Africa -- Eastern Cape , Pomadasys -- South Africa -- Eastern Cape , Estuaries -- South Africa -- Eastern Cape , Estuarine fishes -- South Africa -- Eastern Cape , Estuarine fishes -- Habitat -- South Africa -- Eastern Cape , Fishery management -- South Africa -- Eastern Cape , Fishes -- Home range , Fishes -- Home range -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5286 , http://hdl.handle.net/10962/d1005130 , Grunts (Fishes) -- South Africa -- Eastern Cape , Pomadasys -- South Africa -- Eastern Cape , Estuaries -- South Africa -- Eastern Cape , Estuarine fishes -- South Africa -- Eastern Cape , Estuarine fishes -- Habitat -- South Africa -- Eastern Cape , Fishery management -- South Africa -- Eastern Cape , Fishes -- Home range , Fishes -- Home range -- South Africa -- Eastern Cape
- Description: The spotted grunter (Pomadasys commersonnii) is an important, estuarine-dependent, fishery species in southern Africa. Since estuaries are essential habitats in the life history of this species, the quantification of area use patterns and movements is important for fisheries management. In this study, acoustic telemetry was used to investigate movements, use of habitat and home range dynamics of spotted grunter in the small intermittently open East Kleinemonde Estuary on the Eastern Cape coast of South Africa. Nine spotted grunter (range: 326-489mm TL) were surgically equipped with uniquely coded acoustic transmitters. Positional fixes were obtained by manual tracking tagged individuals on six days and six nights during five tracking sessions from March to November 2004. In addition, five stationary data-logging receivers, moored at specific locations from the mouth to the top of the estuary provided additional long-term monitoring. Kernel home ranges (95% UD) varied in size (26 296-165 321m²) but were all located in a common high use area situated between 300-1 300m from the estuary mouth, which coincided with the highest abundance of prey items. There was no significant variation in home range size [C² (N = 9, df = 4) = 4.18; p = 0.38] between the temporally segregated tracking sessions (over nine months). The persistence of these home range estimates were confirmed by the long-term data-logging receivers. There was no significant diel variation in home range size [F(4, 64) = 0.05, p = 0.99] or core area size [F(4, 64) = 1.40, p = 0.25]. Fish length showed negative, although not significant, relationships between home range size (p = 0.225); number of home range areas (p = 0.065); core area size (p = 0.512) and home range length (p = 0.320). Use of habitat and home range dynamics of spotted grunter in the East Kleinemonde Estuary were consistent over the nine month study period, and they appeared to be influenced more by biotic than abiotic factors. However, when the mouth opened at the end of the study, most tagged fish vacated their home ranges and emigrated to sea.
- Full Text:
- Date Issued: 2008
Hope and disillusionment: a post-colonial critique of selected South African and Zimbabwean short stories
- Authors: Madamombe, Esrina
- Date: 2008
- Subjects: Short stories, South African (English) -- Criticism and interpretation , Short stories, Zimbabwean (English) -- Criticism and interpretation
- Language: English
- Type: Thesis , Masters , MA (English)
- Identifier: vital:11500 , http://hdl.handle.net/10353/170 , Short stories, South African (English) -- Criticism and interpretation , Short stories, Zimbabwean (English) -- Criticism and interpretation
- Description: This study investigates short stories published in South Africa and in Zimbabwe before the turn of the twenty-first century. The short story as a genre provides a more accessible and shorter means of viewing literary trends after the official end of the hostilities of apartheid and colonialism. Because of their brevity and specific focus, these short stories from many voices allow a glimpse of different arenas affecting contemporary reality. Post-independence stories reveal that in the process of navigating or directing hope after independence, people are sometimes left bereft as disenchantment with politics sets in, leaving people to search for hope in areas of their everyday lives such as marriage, birth and friendship. But because their lives are also fraught with conflict, hate and betrayal, hope may remain uncertain and prospects frightening. Chapter One embarks on a brief historical and political background of South Africa and Zimbabwe. This chapter also conceptualizes the issues of hope and disillusionment in the South African and Zimbabwean socio-historical contexts. Chapters Two and Three analyze selected stories from South Africa and Zimbabwe, respectively, focusing on issues with which the writers are preoccupied, especially how they explore hope and disillusionment. The analyses of the stories in these two chapters are structured chronologically depicting events in the stories. Thus the study creates its own narrative of South African and Zimbabwean life towards the new millennium. These two chapters discuss how meanings, significances and ramifications of the post-colonial community are negotiated and re-negotiated in selected stories, highlighting the challenges and engagements with hope and disillusionment dramatized in short prose fiction. Chapter Four will undertake to conclude with comparisons of the selected stories, discussing the implications of the study for South African and Zimbabwean contemporary societies at the turn of the twenty-first century. Granted, it is always difficult to generalize about a society from such highly individual, personal stories. But my study suggests that at the turn of the twenty-first century in South Africa, disillusionment is beginning to displace the heady expectation many felt at the 1994 election. And perhaps even more unlikely, given the current crisis, Zimbabwean stories from recent years show people hopefully waiting for the new millennium, a dawning of new, unpredictable possibilities.
- Full Text:
- Date Issued: 2008
- Authors: Madamombe, Esrina
- Date: 2008
- Subjects: Short stories, South African (English) -- Criticism and interpretation , Short stories, Zimbabwean (English) -- Criticism and interpretation
- Language: English
- Type: Thesis , Masters , MA (English)
- Identifier: vital:11500 , http://hdl.handle.net/10353/170 , Short stories, South African (English) -- Criticism and interpretation , Short stories, Zimbabwean (English) -- Criticism and interpretation
- Description: This study investigates short stories published in South Africa and in Zimbabwe before the turn of the twenty-first century. The short story as a genre provides a more accessible and shorter means of viewing literary trends after the official end of the hostilities of apartheid and colonialism. Because of their brevity and specific focus, these short stories from many voices allow a glimpse of different arenas affecting contemporary reality. Post-independence stories reveal that in the process of navigating or directing hope after independence, people are sometimes left bereft as disenchantment with politics sets in, leaving people to search for hope in areas of their everyday lives such as marriage, birth and friendship. But because their lives are also fraught with conflict, hate and betrayal, hope may remain uncertain and prospects frightening. Chapter One embarks on a brief historical and political background of South Africa and Zimbabwe. This chapter also conceptualizes the issues of hope and disillusionment in the South African and Zimbabwean socio-historical contexts. Chapters Two and Three analyze selected stories from South Africa and Zimbabwe, respectively, focusing on issues with which the writers are preoccupied, especially how they explore hope and disillusionment. The analyses of the stories in these two chapters are structured chronologically depicting events in the stories. Thus the study creates its own narrative of South African and Zimbabwean life towards the new millennium. These two chapters discuss how meanings, significances and ramifications of the post-colonial community are negotiated and re-negotiated in selected stories, highlighting the challenges and engagements with hope and disillusionment dramatized in short prose fiction. Chapter Four will undertake to conclude with comparisons of the selected stories, discussing the implications of the study for South African and Zimbabwean contemporary societies at the turn of the twenty-first century. Granted, it is always difficult to generalize about a society from such highly individual, personal stories. But my study suggests that at the turn of the twenty-first century in South Africa, disillusionment is beginning to displace the heady expectation many felt at the 1994 election. And perhaps even more unlikely, given the current crisis, Zimbabwean stories from recent years show people hopefully waiting for the new millennium, a dawning of new, unpredictable possibilities.
- Full Text:
- Date Issued: 2008
Household attributes promote diversity of tree holdings in rural areas, South Africa:
- Shackleton, Charlie M, Paumgarten, Fiona, Cocks, Michelle L
- Authors: Shackleton, Charlie M , Paumgarten, Fiona , Cocks, Michelle L
- Date: 2008
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/141301 , vital:37960 , DOI: 10.1007/s10457-007-9066-5
- Description: Trees within the homestead area provide many functions to rural households. However, within the semi-arid regions of southern Africa, there has been only limited examination of the correlates between the socio-economic attributes of rural households and the density, species richness and types of trees they keep. This paper reports on a multivariate analysis of household attributes in relation to homestead tree holdings from six rural villages in South Africa. In terms of density of trees per household, gender of the household head was the only significant correlate, with female-headed households having significantly fewer trees than their male-headed counterparts. This was especially so for the density of indigenous trees.
- Full Text:
- Date Issued: 2008
- Authors: Shackleton, Charlie M , Paumgarten, Fiona , Cocks, Michelle L
- Date: 2008
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/141301 , vital:37960 , DOI: 10.1007/s10457-007-9066-5
- Description: Trees within the homestead area provide many functions to rural households. However, within the semi-arid regions of southern Africa, there has been only limited examination of the correlates between the socio-economic attributes of rural households and the density, species richness and types of trees they keep. This paper reports on a multivariate analysis of household attributes in relation to homestead tree holdings from six rural villages in South Africa. In terms of density of trees per household, gender of the household head was the only significant correlate, with female-headed households having significantly fewer trees than their male-headed counterparts. This was especially so for the density of indigenous trees.
- Full Text:
- Date Issued: 2008