The role of custodial grandparents in psychosocial well-being of adolescents from single parents in Buffalo City Municipality of Eastern Cape, South Africa
- Authors: Adenike,Folorunsho Fausat
- Date: 2020
- Subjects: Grandparents as parents Grandparent and child Grandparenting
- Language: English
- Type: Thesis , Doctoral , PhD(Social Work)
- Identifier: http://hdl.handle.net/10353/17943 , vital:41994
- Description: It has been a historical norm in African societies for children to leave in the homes of caregivers. Among these caregivers are the grandparents, who are from time immemorial, being a pillar of support to their children in caring for their grandchildren. Against this background, the study assesses custodial the role of grandparents in the psychosocial well-being of adolescent children from single parents' homes in Buffalo City Metropolitan Municipality, Eastern Cape Province, South Africa. The study was guided theoretically by Role and Ryff's psychosocial well-being theories. Four sets of participants totaling 323 gathered using a mixed-method approach comprised of 150 adolescents and 136 custodial grandparents through questionnaires, 30 single parents, through in-depth interviews, and seven social workers through focus group discussions. The study utilized a multi-stage sampling technique to select adolescents and their grandparents, a purposive sampling technique for single parents, and a convenient sampling technique for social workers. The quantitative data were analyzed using descriptive statistics and Pearson's Correlation Coefficient, while the qualitative data were categorized manually into themes and subthemes. Findings indicated a correlation between the attainment of the adolescent children's psychosocial well-being and the effectiveness of the custodial grandparents' role. More also, the challenges encountered by custodial grandparents do affect the attainment of the psychosocial well-being of adolescent children. Furthermore, finding from the study revealed that non-governmental organizations in the municipality were not rendering social support for the custodial grandparents. Finally, the child-support grant received by poor grandparents is grossly inadequate to meet up with the astronomical needs of the adolescent children. The study concluded that custodial grandparents' social support is an effective mechanism in meeting adolescent children's psychosocial well-being. Several recommendations were made from the conclusions to various stakeholders and proposed a responsive conceptual grand-parenting model to cater for effective parenting.
- Full Text:
- Date Issued: 2020
- Authors: Adenike,Folorunsho Fausat
- Date: 2020
- Subjects: Grandparents as parents Grandparent and child Grandparenting
- Language: English
- Type: Thesis , Doctoral , PhD(Social Work)
- Identifier: http://hdl.handle.net/10353/17943 , vital:41994
- Description: It has been a historical norm in African societies for children to leave in the homes of caregivers. Among these caregivers are the grandparents, who are from time immemorial, being a pillar of support to their children in caring for their grandchildren. Against this background, the study assesses custodial the role of grandparents in the psychosocial well-being of adolescent children from single parents' homes in Buffalo City Metropolitan Municipality, Eastern Cape Province, South Africa. The study was guided theoretically by Role and Ryff's psychosocial well-being theories. Four sets of participants totaling 323 gathered using a mixed-method approach comprised of 150 adolescents and 136 custodial grandparents through questionnaires, 30 single parents, through in-depth interviews, and seven social workers through focus group discussions. The study utilized a multi-stage sampling technique to select adolescents and their grandparents, a purposive sampling technique for single parents, and a convenient sampling technique for social workers. The quantitative data were analyzed using descriptive statistics and Pearson's Correlation Coefficient, while the qualitative data were categorized manually into themes and subthemes. Findings indicated a correlation between the attainment of the adolescent children's psychosocial well-being and the effectiveness of the custodial grandparents' role. More also, the challenges encountered by custodial grandparents do affect the attainment of the psychosocial well-being of adolescent children. Furthermore, finding from the study revealed that non-governmental organizations in the municipality were not rendering social support for the custodial grandparents. Finally, the child-support grant received by poor grandparents is grossly inadequate to meet up with the astronomical needs of the adolescent children. The study concluded that custodial grandparents' social support is an effective mechanism in meeting adolescent children's psychosocial well-being. Several recommendations were made from the conclusions to various stakeholders and proposed a responsive conceptual grand-parenting model to cater for effective parenting.
- Full Text:
- Date Issued: 2020
Rural livelihood strategies of female headed households in former Bantustans of post-apartheid South Africa: The case of Cala, Eastern Cape Province.
- Authors: Chirau, Takunda John
- Date: 2016
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3410 , http://hdl.handle.net/10962/d1021301
- Description: Communal areas in contemporary South Africa (that is, the former Bantustans of apartheid South Africa) continue to bear and endure, albeit in new forms, socio-economic and political vulnerabilities which are negatively affecting household livelihoods. Current studies on rural livelihoods have failed to keep pace in exploring and analysing the lived experiences and ever-changing challenges faced by these rural households. This thesis provides an understanding and explanation of the livelihood activities of specifically de facto and de jure female-headed households in the former Transkei Bantustan, with a specific focus on villages in Cala. This is framed analytically by feminist theories with their emphasis on systems of patriarchy and by a rural livelihoods framework. It uses a multiplicity of research methods, including focus group discussions, in-depth interviews, life histories and survey questionnaires. The major findings of the thesis show that the female-headed households in Cala depend upon agricultural-based activities and non-agriculturally-based activities and income (including social grants) but that they exist under conditions of extreme vulnerability which are subject to fluctuation. In the end, the livelihoods of female-headed households are precarious and unstable as they live under circumstances of poverty. However, the female heads are not mere passive victims of the rural crisis in post-apartheid South Africa, as they demonstrate qualities of ingenuity and resourcefulness including through a range of coping mechanisms. At the same time, rural communities continue to be marked by patriarchal norms and practices, including systems of chieftainship, which disempower women (including female heads), though this affects de jure heads and de facto heads differently. The thesis contributes to an understanding of rural livelihoods in communal areas (or former Bantustans) of present-day South Africa by way of ‘thick descriptions’ of the everyday lives of female heads in Cala. Further, in examining rural livelihoods, it highlights the importance of bringing to bear on the livelihoods framework a feminist perspective in pinpointing the additional livelihood burdens carried by rural women.
- Full Text:
- Date Issued: 2016
- Authors: Chirau, Takunda John
- Date: 2016
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3410 , http://hdl.handle.net/10962/d1021301
- Description: Communal areas in contemporary South Africa (that is, the former Bantustans of apartheid South Africa) continue to bear and endure, albeit in new forms, socio-economic and political vulnerabilities which are negatively affecting household livelihoods. Current studies on rural livelihoods have failed to keep pace in exploring and analysing the lived experiences and ever-changing challenges faced by these rural households. This thesis provides an understanding and explanation of the livelihood activities of specifically de facto and de jure female-headed households in the former Transkei Bantustan, with a specific focus on villages in Cala. This is framed analytically by feminist theories with their emphasis on systems of patriarchy and by a rural livelihoods framework. It uses a multiplicity of research methods, including focus group discussions, in-depth interviews, life histories and survey questionnaires. The major findings of the thesis show that the female-headed households in Cala depend upon agricultural-based activities and non-agriculturally-based activities and income (including social grants) but that they exist under conditions of extreme vulnerability which are subject to fluctuation. In the end, the livelihoods of female-headed households are precarious and unstable as they live under circumstances of poverty. However, the female heads are not mere passive victims of the rural crisis in post-apartheid South Africa, as they demonstrate qualities of ingenuity and resourcefulness including through a range of coping mechanisms. At the same time, rural communities continue to be marked by patriarchal norms and practices, including systems of chieftainship, which disempower women (including female heads), though this affects de jure heads and de facto heads differently. The thesis contributes to an understanding of rural livelihoods in communal areas (or former Bantustans) of present-day South Africa by way of ‘thick descriptions’ of the everyday lives of female heads in Cala. Further, in examining rural livelihoods, it highlights the importance of bringing to bear on the livelihoods framework a feminist perspective in pinpointing the additional livelihood burdens carried by rural women.
- Full Text:
- Date Issued: 2016
A critical realist exploration of the emergence, development, management and sustainability of a Christian private institution of higher education in Malawi
- Kadyakapita, Mozecie Spector John
- Authors: Kadyakapita, Mozecie Spector John
- Date: 2013 , 2013-03-24
- Subjects: Christian universities and colleges -- Administration -- Research -- Malawi Private universities and colleges -- Administration -- Research -- Malawi Education, Higher -- Administration -- Research -- Malawi Higher education and state -- Research -- Malawi Universities and colleges -- Malawi -- History Educational planning -- Malawi
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1400 , http://hdl.handle.net/10962/d1001818
- Description: This study was prompted by an interest in exploring ways in which the development of private higher education in Malawi could be more sustainable. It examines the challenges that private institutions of higher education face in different contexts and the underlying causes of these challenges. The aim of the study was to explore the emergence of private higher education (PHE) in Malawi, its management, development, the challenges it faces and the generative mechanisms of these challenges. The research is a case study of one of the earliest private institutions of higher education in Malawi. The institution is owned and operated by a Christian church organisation that has been operating a network of private primary and secondary schools and health centres since its establishment in Malawi in the early 1890s. Critical realism is used as an underlabourer for its stance on ontological, epistemological and ethical assumptions of reality and its views on agency and structure. Two theoretical frameworks - complexity theory and transformational leadership theories - are used as lenses to help make sense of the nature of social organisations and also as heuristic devices for organising and making sense of data. Data were collected using qualitative interviews, archival document content analysis and observation. Twenty participants were purposefully selected for interviews. The participants comprised a senior officer at the MoEST headquarters, proprietors, members of the top management team of the institution, administrative assistants, heads of academic and nonacademic departments, teachers and non-teaching staff and students. Abstracted data were analysed using inductive, abductive and retroductive modes of inference. The study established that the emergence of private higher education in Malawi was generated by a number of mechanisms. These include the need to survive the threat to socioeconomic development posed by global trends in scientific and technological issues that heavily rely on access to the knowledge economy; the need to respond to demand for equity and access to higher education; the need to carry out the mission of the Christian church; government’s failure to expand and widen access to higher education; and the agential need to survive economic demands. The research findings indicate that a critical challenge that the emergence of private higher education faced was the lack of adequate and efficient structures and systems in the Ministry of Education, Science and Technology to expeditiously process applications to establish and accredit, monitor and control the development of private higher education institutions. It was also found that the challenges that the private higher education faces include high level of authoritarian governance and management practices, weak institutional management and control systems and structure, secularisation, lack of adequate funds to meet operation and capital development costs, facilities and resources to support teaching – learning functions, learner support facilities and services and a critical shortage of appropriately qualified administrative and academic personnel. The underlying causes of the challenges include the perceived threat to personal power and survival; fear of apostasy and secularisation; cultural values, adverse socioeconomic conditions; lack of diverse sources of funding, ineffective communication skills; weak governance systems and structures; low level of self-control; unfavourable attitudes towards educational institutions and the need to restore equity. To make private institutions of higher learning more sustainable, the study recommends that governance practices be guided by clear structures, policies and guidelines in the interest of transparency and accountability. It also recommends that government works in close partnership with private providers, reviews unfair policies concerning government scholarships, subsidizes the cost of materials for instruction and infrastructure development, and provides technical assistance to prospective and active providers. Lastly, the study recommends that private providers form an association so as to share experiences and to collectively deal with issues of common interest and concern. , Adobe Acrobat 9.53 Paper Capture Plug-in
- Full Text:
- Date Issued: 2013
- Authors: Kadyakapita, Mozecie Spector John
- Date: 2013 , 2013-03-24
- Subjects: Christian universities and colleges -- Administration -- Research -- Malawi Private universities and colleges -- Administration -- Research -- Malawi Education, Higher -- Administration -- Research -- Malawi Higher education and state -- Research -- Malawi Universities and colleges -- Malawi -- History Educational planning -- Malawi
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1400 , http://hdl.handle.net/10962/d1001818
- Description: This study was prompted by an interest in exploring ways in which the development of private higher education in Malawi could be more sustainable. It examines the challenges that private institutions of higher education face in different contexts and the underlying causes of these challenges. The aim of the study was to explore the emergence of private higher education (PHE) in Malawi, its management, development, the challenges it faces and the generative mechanisms of these challenges. The research is a case study of one of the earliest private institutions of higher education in Malawi. The institution is owned and operated by a Christian church organisation that has been operating a network of private primary and secondary schools and health centres since its establishment in Malawi in the early 1890s. Critical realism is used as an underlabourer for its stance on ontological, epistemological and ethical assumptions of reality and its views on agency and structure. Two theoretical frameworks - complexity theory and transformational leadership theories - are used as lenses to help make sense of the nature of social organisations and also as heuristic devices for organising and making sense of data. Data were collected using qualitative interviews, archival document content analysis and observation. Twenty participants were purposefully selected for interviews. The participants comprised a senior officer at the MoEST headquarters, proprietors, members of the top management team of the institution, administrative assistants, heads of academic and nonacademic departments, teachers and non-teaching staff and students. Abstracted data were analysed using inductive, abductive and retroductive modes of inference. The study established that the emergence of private higher education in Malawi was generated by a number of mechanisms. These include the need to survive the threat to socioeconomic development posed by global trends in scientific and technological issues that heavily rely on access to the knowledge economy; the need to respond to demand for equity and access to higher education; the need to carry out the mission of the Christian church; government’s failure to expand and widen access to higher education; and the agential need to survive economic demands. The research findings indicate that a critical challenge that the emergence of private higher education faced was the lack of adequate and efficient structures and systems in the Ministry of Education, Science and Technology to expeditiously process applications to establish and accredit, monitor and control the development of private higher education institutions. It was also found that the challenges that the private higher education faces include high level of authoritarian governance and management practices, weak institutional management and control systems and structure, secularisation, lack of adequate funds to meet operation and capital development costs, facilities and resources to support teaching – learning functions, learner support facilities and services and a critical shortage of appropriately qualified administrative and academic personnel. The underlying causes of the challenges include the perceived threat to personal power and survival; fear of apostasy and secularisation; cultural values, adverse socioeconomic conditions; lack of diverse sources of funding, ineffective communication skills; weak governance systems and structures; low level of self-control; unfavourable attitudes towards educational institutions and the need to restore equity. To make private institutions of higher learning more sustainable, the study recommends that governance practices be guided by clear structures, policies and guidelines in the interest of transparency and accountability. It also recommends that government works in close partnership with private providers, reviews unfair policies concerning government scholarships, subsidizes the cost of materials for instruction and infrastructure development, and provides technical assistance to prospective and active providers. Lastly, the study recommends that private providers form an association so as to share experiences and to collectively deal with issues of common interest and concern. , Adobe Acrobat 9.53 Paper Capture Plug-in
- Full Text:
- Date Issued: 2013
Bioprocess development for removal of nitrogenous compounds from precious metal refinery wastewater
- Manipura, Walappuly Mudiyanselage Janakasiri Aruna Shantha Bandara
- Authors: Manipura, Walappuly Mudiyanselage Janakasiri Aruna Shantha Bandara
- Date: 2008
- Subjects: Factory and trade waste Centralized industrial waste treatment facilities Metals -- Absorption and adsorption Metals -- Environmental aspects Water -- Purification -- Mathematical models Water quality management Water reuse Metals -- Refining Microbiology -- Research
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4076 , http://hdl.handle.net/10962/d1007341
- Description: Removal of nitrogenous compounds from precious metal refinery (PMR) wastewater is important in terms of avoiding eutrophication (environmental protection), metal recovery (increased overall process efficiency and value recovery) and reuse of treated water (maximum use of natural resources). Extreme pH conditions (4 to 13 depending on the wastewater stream), high chemical oxygen demand (> 10,000 mg/I), numerous metals and high concentrations of those metals (> 20 mg/l of platinum group metals) in the wastewater are the main challenges for biological removal of nitrogenous compounds from PMR wastewater. Nitrogenous compounds such as NH₄⁺-N and N0₃-N are strong metal ligands, which make it difficult to recover metals from the wastewater. Therefore, a bioprocess was developed for removal of nitrogenous compounds from carefully simulated PMR wastewater. A preliminary investigation of metal wastewater was carried out to determine its composition and physico-chemical properties, the ability to nitrify and denitrify under different pH conditions and denitrification with different carbon Source compounds and amounts. Even at pH 4, nitrification could be carried out. A suitable hydraulic retention time was found to be 72 hours. There was no significant difference between sodium acetate and sodium lactate as carbon sources for denitrification. Based on these results, a reactor comparison study was carried out using simulated PMR wastewater in three types of reactors: continuously stirred tank reactor (CSTR), packed-bed reactor (PBR) and airlift suspension reactor (ALSR). These reactors were fed with 30 mg/l of Rh bound in an NH₄⁺ based compound (Claus salt: pentaaminechlororhodium (III) dichloride). Total nitrogen removal efficiencies of > 68 % , > 79 % and > 45 % were obtained in the CSTR, PBR and ALSR, respectively. Serially connected CSTR-PBR and PBR-CSTR reactor configurations were then studied to determine the best configuration for maximum removal of nitrogenous compounds from the wastewater. The PBR-CSTR configuration gave consistent biomass retention and automatic pH control in the CSTR. Ammonium removal efficiencies > 95 % were achieved in both reactors. As poor nitrate removal was observed a toxicity study was carried out using respirometry and the half saturation inhibition coefficients for Pt, Pd, Rh and Ru were found to be 15.81, 25.00, 33.34 and 39.25 mg/l, respectively. A mathematical model was developed to describe the nitrogen removal in PMR wastewater using activated sludge model number 1 (ASMl), two step nitrification and metal toxicity. An operational protocol was developed based on the literature review, experimental work and simulation results. The optimum reactor configuration under the set conditions (20 mg/I of Rh and < 100 mg/I of NH₄⁺-N) was found to be PBR-CSTR-PBR process, which achieved overall NH₄⁺-N and N0₃⁻-N removal efficiencies of > 90 % and 95 %, respectively. Finally, a rudimentary microbial characterisation was carried out on subsamples from the CSTR and PBRsecondary. It was found that the CSTR biomass consisted of both rods and cocci while PBRsecondary consisted of rods only. Based on these experimental works, further research needs and recommendations were made for optimisation of the developed bioprocess for removal of nitrogenous compounds from PMR wastewater.
- Full Text:
- Date Issued: 2008
- Authors: Manipura, Walappuly Mudiyanselage Janakasiri Aruna Shantha Bandara
- Date: 2008
- Subjects: Factory and trade waste Centralized industrial waste treatment facilities Metals -- Absorption and adsorption Metals -- Environmental aspects Water -- Purification -- Mathematical models Water quality management Water reuse Metals -- Refining Microbiology -- Research
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4076 , http://hdl.handle.net/10962/d1007341
- Description: Removal of nitrogenous compounds from precious metal refinery (PMR) wastewater is important in terms of avoiding eutrophication (environmental protection), metal recovery (increased overall process efficiency and value recovery) and reuse of treated water (maximum use of natural resources). Extreme pH conditions (4 to 13 depending on the wastewater stream), high chemical oxygen demand (> 10,000 mg/I), numerous metals and high concentrations of those metals (> 20 mg/l of platinum group metals) in the wastewater are the main challenges for biological removal of nitrogenous compounds from PMR wastewater. Nitrogenous compounds such as NH₄⁺-N and N0₃-N are strong metal ligands, which make it difficult to recover metals from the wastewater. Therefore, a bioprocess was developed for removal of nitrogenous compounds from carefully simulated PMR wastewater. A preliminary investigation of metal wastewater was carried out to determine its composition and physico-chemical properties, the ability to nitrify and denitrify under different pH conditions and denitrification with different carbon Source compounds and amounts. Even at pH 4, nitrification could be carried out. A suitable hydraulic retention time was found to be 72 hours. There was no significant difference between sodium acetate and sodium lactate as carbon sources for denitrification. Based on these results, a reactor comparison study was carried out using simulated PMR wastewater in three types of reactors: continuously stirred tank reactor (CSTR), packed-bed reactor (PBR) and airlift suspension reactor (ALSR). These reactors were fed with 30 mg/l of Rh bound in an NH₄⁺ based compound (Claus salt: pentaaminechlororhodium (III) dichloride). Total nitrogen removal efficiencies of > 68 % , > 79 % and > 45 % were obtained in the CSTR, PBR and ALSR, respectively. Serially connected CSTR-PBR and PBR-CSTR reactor configurations were then studied to determine the best configuration for maximum removal of nitrogenous compounds from the wastewater. The PBR-CSTR configuration gave consistent biomass retention and automatic pH control in the CSTR. Ammonium removal efficiencies > 95 % were achieved in both reactors. As poor nitrate removal was observed a toxicity study was carried out using respirometry and the half saturation inhibition coefficients for Pt, Pd, Rh and Ru were found to be 15.81, 25.00, 33.34 and 39.25 mg/l, respectively. A mathematical model was developed to describe the nitrogen removal in PMR wastewater using activated sludge model number 1 (ASMl), two step nitrification and metal toxicity. An operational protocol was developed based on the literature review, experimental work and simulation results. The optimum reactor configuration under the set conditions (20 mg/I of Rh and < 100 mg/I of NH₄⁺-N) was found to be PBR-CSTR-PBR process, which achieved overall NH₄⁺-N and N0₃⁻-N removal efficiencies of > 90 % and 95 %, respectively. Finally, a rudimentary microbial characterisation was carried out on subsamples from the CSTR and PBRsecondary. It was found that the CSTR biomass consisted of both rods and cocci while PBRsecondary consisted of rods only. Based on these experimental works, further research needs and recommendations were made for optimisation of the developed bioprocess for removal of nitrogenous compounds from PMR wastewater.
- Full Text:
- Date Issued: 2008
The assessment and management of bycatch and discards in the South African demersal trawl fishery
- Authors: Walmsley, Sarah Ann
- Date: 2005
- Subjects: Bycatches (Fisheries) Fishery management -- South Africa Fisheries -- South Africa Trawls and trawling -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5228 , http://hdl.handle.net/10962/d1005071
- Description: Over the past few decades it has become recognised that an ecosystem approach is required to manage world fisheries. Management strategies must ensure that non-target (bycatch) as well as target catches are sustainable. To achieve this, detailed commercial catch and biological information is required. The composition of catches made by trawlers operating off the south and west coasts of South Africa was investigated. Distinct fishing areas were identified on each coast, based on target species and fishing depth. Catch composition differed markedly among the areas defined. Although hake Merluccius sp. dominated South Coast catches, a large proportion of the catch was composed of bycatch. On the West Coast, hake dominated catches and this domination increased with increasing depth. On both coasts approximately 90% of the observed nominal catch was processed and landed. Estimates of annual discards suggested that the fishery discarded 38 thousand tons of fish per annum (16% of the nominal trawl catch). The data also indicated that hake discarding, the capture of linefish and the increased targeting of high value species might be cause for concern. Spatial analysis indicated that a variety of factors such as trawling position, catch size and catch composition affects bycatch dynamics. The monkfish Lophius vomerinus is a common bycatch species that has been increasingly targeted by demersal trawlers. This study showed that L. vomerinus is a slow-growing, long-lived species (West Coast males L∞ = 68.50cm TL, t₀ = -1.69yr, K = 0.10yr⁻¹; West Coast females L∞ = 110.23cm TL, t₀ = -1.54yr, K = 0.05yr⁻¹; South Coast sexes combined L∞ = 70.12cm TL, t₀ = - 0.80yr, K = 0.11yr⁻¹), that matures at approximately 6 years of age. These traits could have serious management implications for the species. Per-recruit analysis suggested that the stock might be overexploited, although further investigation is required to confirm this. Solutions were suggested for each of the concerns raised, taking cognisance of the differences observed between the South and West Coasts and the economic dependence of South Coast companies on bycatch. The needs of future research were considered.
- Full Text:
- Date Issued: 2005
- Authors: Walmsley, Sarah Ann
- Date: 2005
- Subjects: Bycatches (Fisheries) Fishery management -- South Africa Fisheries -- South Africa Trawls and trawling -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5228 , http://hdl.handle.net/10962/d1005071
- Description: Over the past few decades it has become recognised that an ecosystem approach is required to manage world fisheries. Management strategies must ensure that non-target (bycatch) as well as target catches are sustainable. To achieve this, detailed commercial catch and biological information is required. The composition of catches made by trawlers operating off the south and west coasts of South Africa was investigated. Distinct fishing areas were identified on each coast, based on target species and fishing depth. Catch composition differed markedly among the areas defined. Although hake Merluccius sp. dominated South Coast catches, a large proportion of the catch was composed of bycatch. On the West Coast, hake dominated catches and this domination increased with increasing depth. On both coasts approximately 90% of the observed nominal catch was processed and landed. Estimates of annual discards suggested that the fishery discarded 38 thousand tons of fish per annum (16% of the nominal trawl catch). The data also indicated that hake discarding, the capture of linefish and the increased targeting of high value species might be cause for concern. Spatial analysis indicated that a variety of factors such as trawling position, catch size and catch composition affects bycatch dynamics. The monkfish Lophius vomerinus is a common bycatch species that has been increasingly targeted by demersal trawlers. This study showed that L. vomerinus is a slow-growing, long-lived species (West Coast males L∞ = 68.50cm TL, t₀ = -1.69yr, K = 0.10yr⁻¹; West Coast females L∞ = 110.23cm TL, t₀ = -1.54yr, K = 0.05yr⁻¹; South Coast sexes combined L∞ = 70.12cm TL, t₀ = - 0.80yr, K = 0.11yr⁻¹), that matures at approximately 6 years of age. These traits could have serious management implications for the species. Per-recruit analysis suggested that the stock might be overexploited, although further investigation is required to confirm this. Solutions were suggested for each of the concerns raised, taking cognisance of the differences observed between the South and West Coasts and the economic dependence of South Coast companies on bycatch. The needs of future research were considered.
- Full Text:
- Date Issued: 2005
Prodigality, liberality and meanness in the parable of the prodigal son : Greco-Roman perspective on Luke 15:11-32
- Authors: Holgate, David A
- Date: 1993
- Subjects: Bible. Luke XV, 11-32 -- Criticism, interpretation, etc. , Prodigal son (Parable) , Ethics in the Bible
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1244 , http://hdl.handle.net/10962/d1009701
- Description: This dissertation consists of an interpretation of the Parable of the Prodigal Son (Luke 15: 11-32) from the perspective of Greco-Roman moral philosophy. It is divided into three parts. Part 1 traces the history of relating the New Testament to Greco-Roman literature and philosophy. Despite the importance of this perspective for the study of Luke-Acts, the relationship between Luke 15: 11-32 and Greco-Roman moral philosophy has not been investigated before. The legitimacy of this approach is demonstrated by a literary analysis of the parable, which demonstrates the formal emphasis placed upon the liberal and compassionate words and actions of the father. The strong moral orientation of the parable is further illustrated by the formal, linguistic and thematic features which it shares with the other L parables. Part 2 consists of a study of the Greco-Roman moral topos On Covetousness. The use of the Greco-Roman topos as a critical tool for the study of the New Testament is evaluated, the term is defined, and the influence of the topos On Covetousness upon representative works of moral philosophy is studied. This part ends with a summary of the characteristic features of the topos and its use by writers with differing philosophical affiliations. Part 3 reads the whole parable in terms of the topos On Covetousness,with the emphasis being placed on the relationship between the Lukan text and works of Greco-Roman moral philosophy. The parable is seen to be structured according to the influential Peripatetic doctrine of the mean, with the father representing the virtue of liberality, and his two sons the opposing vices of prodigality and meanness. The comparison with the topos reveals Luke's strong rejection of the two vices, and his endorsement of the Greco-Roman virtue of liberality, which is modified by his emphasis upon the Christian virtue of compassion. The approach affirms and demonstrates the internal unity of the parable and its close relationship to the Lukan theme of the correct use of possessions.
- Full Text:
- Date Issued: 1993
- Authors: Holgate, David A
- Date: 1993
- Subjects: Bible. Luke XV, 11-32 -- Criticism, interpretation, etc. , Prodigal son (Parable) , Ethics in the Bible
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1244 , http://hdl.handle.net/10962/d1009701
- Description: This dissertation consists of an interpretation of the Parable of the Prodigal Son (Luke 15: 11-32) from the perspective of Greco-Roman moral philosophy. It is divided into three parts. Part 1 traces the history of relating the New Testament to Greco-Roman literature and philosophy. Despite the importance of this perspective for the study of Luke-Acts, the relationship between Luke 15: 11-32 and Greco-Roman moral philosophy has not been investigated before. The legitimacy of this approach is demonstrated by a literary analysis of the parable, which demonstrates the formal emphasis placed upon the liberal and compassionate words and actions of the father. The strong moral orientation of the parable is further illustrated by the formal, linguistic and thematic features which it shares with the other L parables. Part 2 consists of a study of the Greco-Roman moral topos On Covetousness. The use of the Greco-Roman topos as a critical tool for the study of the New Testament is evaluated, the term is defined, and the influence of the topos On Covetousness upon representative works of moral philosophy is studied. This part ends with a summary of the characteristic features of the topos and its use by writers with differing philosophical affiliations. Part 3 reads the whole parable in terms of the topos On Covetousness,with the emphasis being placed on the relationship between the Lukan text and works of Greco-Roman moral philosophy. The parable is seen to be structured according to the influential Peripatetic doctrine of the mean, with the father representing the virtue of liberality, and his two sons the opposing vices of prodigality and meanness. The comparison with the topos reveals Luke's strong rejection of the two vices, and his endorsement of the Greco-Roman virtue of liberality, which is modified by his emphasis upon the Christian virtue of compassion. The approach affirms and demonstrates the internal unity of the parable and its close relationship to the Lukan theme of the correct use of possessions.
- Full Text:
- Date Issued: 1993
A critical analysis of the marketing of mohair in South Africa with special reference to the period 1963 to 1989
- Norton, Eustace Herbert Fraser
- Authors: Norton, Eustace Herbert Fraser
- Date: 1992
- Subjects: Mohair -- South Africa -- Marketing , Mohair industry -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1020 , http://hdl.handle.net/10962/d1002755 , Mohair -- South Africa -- Marketing , Mohair industry -- South Africa
- Description: The objective of the research was to determine the extent to which marketing in general, and the Mohair Scheme in particular, played a part in the re-emergence of South Africa as the world's leading mohair producer. The two major components of the Scheme, the 'voorskot', or initial payment, and reserve prices were analysed separately. In an adaptive expectations, distributed lag model of supply adjustment, only the weighted rainfall and the average real net price of mohair during the previous season, were found to be important determinants of mohair production. The significant negative correlation between the average real net 'voorskot' price and mohair production was contrary to expectations, and probably due to the 'voorskot' always having been set well below the market price. The 'voorskot' may nevertheless have played an important part in making the Scheme as a whole acceptable to producers. As no record is kept of the reserve price, its influence was tested indirectly in two stages. In the first, its influence on price stability was determined by a comparison of ranges, standard deviations and variances, and by several multiple linear demand regressions. Three of the four models showed clearly that price stability was increased by the Mohair Scheme. In the second stage, formulae and diagrammatic analyses were used to assess the welfare gains and losses resulting from the Mohair Scheme. There was a welfare gain to local producers and most of the welfare costs of the Scheme were borne by foreign consumers. With this gain to producers and the more stable price, it was concluded that the reserve price had stimulated mohair production. It was therefore established that the Mohair Scheme had played a major part in the re-emergence of South Africa as the world' s leading mohair producer. Nevertheless, in view of the massive stockpiling in recent seasons, because the reserve price was set too high, the result was a substantial loss to the Scheme; it was therefore recommended that the Mohair Scheme be discontinued or, at least, that the reserve price should be set at a much lower long-run, market clearing level.
- Full Text:
- Date Issued: 1992
- Authors: Norton, Eustace Herbert Fraser
- Date: 1992
- Subjects: Mohair -- South Africa -- Marketing , Mohair industry -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1020 , http://hdl.handle.net/10962/d1002755 , Mohair -- South Africa -- Marketing , Mohair industry -- South Africa
- Description: The objective of the research was to determine the extent to which marketing in general, and the Mohair Scheme in particular, played a part in the re-emergence of South Africa as the world's leading mohair producer. The two major components of the Scheme, the 'voorskot', or initial payment, and reserve prices were analysed separately. In an adaptive expectations, distributed lag model of supply adjustment, only the weighted rainfall and the average real net price of mohair during the previous season, were found to be important determinants of mohair production. The significant negative correlation between the average real net 'voorskot' price and mohair production was contrary to expectations, and probably due to the 'voorskot' always having been set well below the market price. The 'voorskot' may nevertheless have played an important part in making the Scheme as a whole acceptable to producers. As no record is kept of the reserve price, its influence was tested indirectly in two stages. In the first, its influence on price stability was determined by a comparison of ranges, standard deviations and variances, and by several multiple linear demand regressions. Three of the four models showed clearly that price stability was increased by the Mohair Scheme. In the second stage, formulae and diagrammatic analyses were used to assess the welfare gains and losses resulting from the Mohair Scheme. There was a welfare gain to local producers and most of the welfare costs of the Scheme were borne by foreign consumers. With this gain to producers and the more stable price, it was concluded that the reserve price had stimulated mohair production. It was therefore established that the Mohair Scheme had played a major part in the re-emergence of South Africa as the world' s leading mohair producer. Nevertheless, in view of the massive stockpiling in recent seasons, because the reserve price was set too high, the result was a substantial loss to the Scheme; it was therefore recommended that the Mohair Scheme be discontinued or, at least, that the reserve price should be set at a much lower long-run, market clearing level.
- Full Text:
- Date Issued: 1992
- «
- ‹
- 1
- ›
- »