Marine plastic pollution impacts on ecosystem services and livelihoods in South Africa: a review and stakeholder perceptions
- Authors: Yose, Papama
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424743 , vital:72180
- Description: Marine plastic pollution is one of the major environmental problems globally, with adverse impacts on marine ecosystem services, functions and benefits and people. Yet, compared to plastic pollution impacts on terrestrial ecosystems, the impacts of plastic waste on marine ecosystems are little studied and poorly understood in South Africa. In response, research interest on the ecological and economic impacts of marine plastic pollution has grown rapidly but socio-cultural impacts remain poorly conceptualized and little understudied. This trend is arguably driven by the dominance of a quantitative paradigm which is arguably inadequate to respond to dynamic socio-cultural issues and contexts. Further, in South Africa, marine ecosystems are used by diverse groups of people ranging from subsistence users, tourism operators, commercial fishers and recreational users, meaning that addressing marine plastic pollution requires a multi-stakeholder approach. However, few studies explore the perceptions of diverse stakeholders regarding marine plastic pollution, its impacts and potential interventions. Against this background, the objective of the thesis are twofold: (a) to argue for a more nuanced understanding of marine plastic pollution impacts on human well-being in order to strengthen conceptualization of impacts that goes beyond direct and quantitatively measured impacts (ecological, health and economic) but considers the socio-cultural dimensions of impacts (lifestyle disruptions, mental health costs and cultural and heritage impacts), and (b) examine stakeholders’ perceptions of marine plastic pollution, its impacts and potential interventions in South Africa. Drawing on case studies, this study provides a working definition of the socio-cultural impacts of marine plastic pollution and a conceptual framework for categorizing the impacts. It highlights three dimensions of the socio-cultural impacts of marine plastic pollution (lifestyle, mental health, and cultural and heritage impacts). It also illustrates connections between marine ecosystems and marine-based livelihood activities with the social and cultural dimensions of human wellbeing to show the links between marine environments and socio-cultural contexts. Concerning stakeholder perceptions, the study showed a tendency to associate marine plastic pollution with immediate, noticeable and easily quantifiable ecological impacts such as entanglement and ingestion of marine organisms, economic impacts and social impacts (e.g., loss of aesthetic appeal). However, secondary impacts such as loss of marine biodiversity and social impacts such as human health, were largely unknown. Moreover, there was heterogeneity in perceptions of marine plastic pollution impacts among the stakeholder groups. Prospective studies researching marine plastic pollution impacts should consider divergent and diverse perceptions of different stakeholders to capture the real costs of marine plastic pollution. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2023
- Full Text:
- Date Issued: 2023-10-13
- Authors: Yose, Papama
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424743 , vital:72180
- Description: Marine plastic pollution is one of the major environmental problems globally, with adverse impacts on marine ecosystem services, functions and benefits and people. Yet, compared to plastic pollution impacts on terrestrial ecosystems, the impacts of plastic waste on marine ecosystems are little studied and poorly understood in South Africa. In response, research interest on the ecological and economic impacts of marine plastic pollution has grown rapidly but socio-cultural impacts remain poorly conceptualized and little understudied. This trend is arguably driven by the dominance of a quantitative paradigm which is arguably inadequate to respond to dynamic socio-cultural issues and contexts. Further, in South Africa, marine ecosystems are used by diverse groups of people ranging from subsistence users, tourism operators, commercial fishers and recreational users, meaning that addressing marine plastic pollution requires a multi-stakeholder approach. However, few studies explore the perceptions of diverse stakeholders regarding marine plastic pollution, its impacts and potential interventions. Against this background, the objective of the thesis are twofold: (a) to argue for a more nuanced understanding of marine plastic pollution impacts on human well-being in order to strengthen conceptualization of impacts that goes beyond direct and quantitatively measured impacts (ecological, health and economic) but considers the socio-cultural dimensions of impacts (lifestyle disruptions, mental health costs and cultural and heritage impacts), and (b) examine stakeholders’ perceptions of marine plastic pollution, its impacts and potential interventions in South Africa. Drawing on case studies, this study provides a working definition of the socio-cultural impacts of marine plastic pollution and a conceptual framework for categorizing the impacts. It highlights three dimensions of the socio-cultural impacts of marine plastic pollution (lifestyle, mental health, and cultural and heritage impacts). It also illustrates connections between marine ecosystems and marine-based livelihood activities with the social and cultural dimensions of human wellbeing to show the links between marine environments and socio-cultural contexts. Concerning stakeholder perceptions, the study showed a tendency to associate marine plastic pollution with immediate, noticeable and easily quantifiable ecological impacts such as entanglement and ingestion of marine organisms, economic impacts and social impacts (e.g., loss of aesthetic appeal). However, secondary impacts such as loss of marine biodiversity and social impacts such as human health, were largely unknown. Moreover, there was heterogeneity in perceptions of marine plastic pollution impacts among the stakeholder groups. Prospective studies researching marine plastic pollution impacts should consider divergent and diverse perceptions of different stakeholders to capture the real costs of marine plastic pollution. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2023
- Full Text:
- Date Issued: 2023-10-13
Religiosity and sexual risk-taking behaviour among Black female students attending university
- Authors: Yona, Nombeko
- Date: 2009-02
- Subjects: College students -- Sexual behavior , Women college students , Risk-taking (Psychology)
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10353/25129 , vital:63980
- Description: The degree to which religious identity acts as a protective buffer against sexual risk - taking in late adolescence and young adults was investigated among 100 Black female university students. Allport and Ross’ Religious Orientation Scale was used to examine the relationship among religiosity, sexual activity and condom use. The results indicated that greater intrinsic and extrinsic religiosity were associated with less sexual activity and condom use. Religious identification therefore protected respondents from sexual risk- taking but sexually active students with high levels of intrinsic and extrinsic religiosity were less likely to use condoms. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2009
- Full Text:
- Date Issued: 2009-02
- Authors: Yona, Nombeko
- Date: 2009-02
- Subjects: College students -- Sexual behavior , Women college students , Risk-taking (Psychology)
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10353/25129 , vital:63980
- Description: The degree to which religious identity acts as a protective buffer against sexual risk - taking in late adolescence and young adults was investigated among 100 Black female university students. Allport and Ross’ Religious Orientation Scale was used to examine the relationship among religiosity, sexual activity and condom use. The results indicated that greater intrinsic and extrinsic religiosity were associated with less sexual activity and condom use. Religious identification therefore protected respondents from sexual risk- taking but sexually active students with high levels of intrinsic and extrinsic religiosity were less likely to use condoms. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2009
- Full Text:
- Date Issued: 2009-02
Photophysicochemical properties and TD-DFT calculations of a novel terminal alkyne substituted metal free phthalocyanine
- Yilmaz, Yusuf, Mack, John, Sönmez, Mehmet, Nyokong, Tebello
- Authors: Yilmaz, Yusuf , Mack, John , Sönmez, Mehmet , Nyokong, Tebello
- Date: 2014
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/241562 , vital:50950 , xlink:href="https://doi.org/10.1142/S1088424613501241"
- Description: The synthesis of a novel free base tetrakis(prop-2-ynyloxy)phthalocyanine (2) is described, along with its characterization by IR, UV-visible absorption, and 1H NMR spectroscopy and mass spectrometry. The compound exhibited good solubility in a wide range of organic solvents and no significant aggregation was observed over a wide concentration range. The values for the singlet oxygen (ΦΔ), photodegradation, fluorescence (ΦF) and triplet state quantum yields and the fluorescence and triplet state lifetimes are reported. A relatively high ΦΔ value of 0.46 was obtained in DMSO. The ability to carry out "click" chemistry at the ligand periphery enhances the potential utility of 2 for use in bioconjugates in photodynamic therapy (PDT). A moderately high ΦF value of 0.18 is observed for emission in the therapeutic window in the near-IR region, which suggests that it may also be possible to determine the level of localization of 2 in tumor cells through bioimaging.
- Full Text:
- Date Issued: 2014
- Authors: Yilmaz, Yusuf , Mack, John , Sönmez, Mehmet , Nyokong, Tebello
- Date: 2014
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/241562 , vital:50950 , xlink:href="https://doi.org/10.1142/S1088424613501241"
- Description: The synthesis of a novel free base tetrakis(prop-2-ynyloxy)phthalocyanine (2) is described, along with its characterization by IR, UV-visible absorption, and 1H NMR spectroscopy and mass spectrometry. The compound exhibited good solubility in a wide range of organic solvents and no significant aggregation was observed over a wide concentration range. The values for the singlet oxygen (ΦΔ), photodegradation, fluorescence (ΦF) and triplet state quantum yields and the fluorescence and triplet state lifetimes are reported. A relatively high ΦΔ value of 0.46 was obtained in DMSO. The ability to carry out "click" chemistry at the ligand periphery enhances the potential utility of 2 for use in bioconjugates in photodynamic therapy (PDT). A moderately high ΦF value of 0.18 is observed for emission in the therapeutic window in the near-IR region, which suggests that it may also be possible to determine the level of localization of 2 in tumor cells through bioimaging.
- Full Text:
- Date Issued: 2014
Synthesis, photophysicochemical properties and TD-DFT calculations of tetrakis (2-benzoyl-4-chlorophenoxy) phthalocyanines
- Yilmaz, Yusuf, Mack, John, Sener, M Kasim, Sönmez, Mehmet, Nyokong, Tebello
- Authors: Yilmaz, Yusuf , Mack, John , Sener, M Kasim , Sönmez, Mehmet , Nyokong, Tebello
- Date: 2014
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/241538 , vital:50948 , xlink:href="https://doi.org/10.1142/S1088424614500047"
- Description: The synthesis of metal free, magnesium and zinc tetrakis(2-benzoyl-4-chlorophenoxy) phthalocyanine derivatives (2–4) is described along with their characterization by elemental analysis, IR, UV-visible absorption, and 1H NMR spectroscopy and mass spectrometry. Trends observed in the fluorescence, triplet state, singlet oxygen and photodegradation quantum yields and the triplet state lifetimes are also analyzed. The compounds exhibit high solubility in a wide range of organic solvents and no evidence of aggregation was observed over a wide concentration range. The Zn(II) complex (4) was found to have a very high singlet oxygen quantum yield (ΦΔ = 0.78) in dimethylsulfoxide (DMSO) and a reasonably large triplet state quantum yield (ΦT = 0.82). The photophysical and photochemical properties clearly demonstrate that these compounds could prove useful in singlet oxygen applications such as photodynamic therapy (PDT). DFT and TD-DFT calculations were used to assess the impact of the positional isomerism of the 2-benzoyl-4-chlorophenoxy substituents on the electronic structures and optical spectroscopy.
- Full Text:
- Date Issued: 2014
- Authors: Yilmaz, Yusuf , Mack, John , Sener, M Kasim , Sönmez, Mehmet , Nyokong, Tebello
- Date: 2014
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/241538 , vital:50948 , xlink:href="https://doi.org/10.1142/S1088424614500047"
- Description: The synthesis of metal free, magnesium and zinc tetrakis(2-benzoyl-4-chlorophenoxy) phthalocyanine derivatives (2–4) is described along with their characterization by elemental analysis, IR, UV-visible absorption, and 1H NMR spectroscopy and mass spectrometry. Trends observed in the fluorescence, triplet state, singlet oxygen and photodegradation quantum yields and the triplet state lifetimes are also analyzed. The compounds exhibit high solubility in a wide range of organic solvents and no evidence of aggregation was observed over a wide concentration range. The Zn(II) complex (4) was found to have a very high singlet oxygen quantum yield (ΦΔ = 0.78) in dimethylsulfoxide (DMSO) and a reasonably large triplet state quantum yield (ΦT = 0.82). The photophysical and photochemical properties clearly demonstrate that these compounds could prove useful in singlet oxygen applications such as photodynamic therapy (PDT). DFT and TD-DFT calculations were used to assess the impact of the positional isomerism of the 2-benzoyl-4-chlorophenoxy substituents on the electronic structures and optical spectroscopy.
- Full Text:
- Date Issued: 2014
The role of stakeholders in developing entrepreneurs in the bunkering industry: the case of Nelson Mandela Bay
- Authors: Yibe, Luthando
- Date: 2021-04
- Subjects: Oil transfer operations -- South Africa -- Nelson Mandela Bay Municipality , Small business -- South Africa -- Nelson Mandela Bay Municipality
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/54849 , vital:48033
- Description: In July 2014 the South African government launched an oceans economy growth and development program called Operation Phakisa: Ocean Economy. The oceans economy is one of the sectors that is identified by the South African government where entrepreneurship can play a meaningful role in contributing to South Africa’s economic growth. Shipping is regarded as a critical operation within the export and import activities of any country . About 30 000 vessels sail along the coast of South Africa each year and approximately 13 000 vessels visit South African ports annually. Bunker replenishment is identified as a critical component within the operation of ships. In 2016 the first offshore bunkering operations were in launched in the Nelson Mandela Bay ports to revitalise the bunkering business. The aim of the study is to provide insight into how entrepreneurs can recognise value in business models, the application of the business model framework and how stakeholders can play a role in developing entrepreneurs in the bunkering sector. A survey using interviews was conducted amongst key stakeholders in the bunkering industry in the Nelson Mandela Bay region. Six themes were formulated, and these themes formed the basis of the interview structure. The themes focused amongst on challenges faced by entrepreneurs, access to funding, impact of industry regulations, government programmes and support available to entrepreneurs and the application of business model and innovation. The findings revealed that whilst Small Medium Enterprises faced several challenges in entering the industry, the support provided by key stakeholders and the application of a business model is key if entrepreneurs are to be successful in the bunkering industry. , Thesis (MBA) -- Faculty of Business and Economic Sciencess, 2021
- Full Text:
- Date Issued: 2021-04
- Authors: Yibe, Luthando
- Date: 2021-04
- Subjects: Oil transfer operations -- South Africa -- Nelson Mandela Bay Municipality , Small business -- South Africa -- Nelson Mandela Bay Municipality
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/54849 , vital:48033
- Description: In July 2014 the South African government launched an oceans economy growth and development program called Operation Phakisa: Ocean Economy. The oceans economy is one of the sectors that is identified by the South African government where entrepreneurship can play a meaningful role in contributing to South Africa’s economic growth. Shipping is regarded as a critical operation within the export and import activities of any country . About 30 000 vessels sail along the coast of South Africa each year and approximately 13 000 vessels visit South African ports annually. Bunker replenishment is identified as a critical component within the operation of ships. In 2016 the first offshore bunkering operations were in launched in the Nelson Mandela Bay ports to revitalise the bunkering business. The aim of the study is to provide insight into how entrepreneurs can recognise value in business models, the application of the business model framework and how stakeholders can play a role in developing entrepreneurs in the bunkering sector. A survey using interviews was conducted amongst key stakeholders in the bunkering industry in the Nelson Mandela Bay region. Six themes were formulated, and these themes formed the basis of the interview structure. The themes focused amongst on challenges faced by entrepreneurs, access to funding, impact of industry regulations, government programmes and support available to entrepreneurs and the application of business model and innovation. The findings revealed that whilst Small Medium Enterprises faced several challenges in entering the industry, the support provided by key stakeholders and the application of a business model is key if entrepreneurs are to be successful in the bunkering industry. , Thesis (MBA) -- Faculty of Business and Economic Sciencess, 2021
- Full Text:
- Date Issued: 2021-04
An exploration of spirit possession and psychological praxis in South Africa: implications for a culturally competent psychological practice
- Authors: Yew-Siong, Lauren Cindy
- Date: 2021-04
- Subjects: Spirit possession -- South Africa -- Psychological aspects , Cultural competence -- South Africa -- Psychological aspects
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/52394 , vital:43635
- Description: Spirit possession has been documented in human history and evidence of it, still exists globally. In South Africa, spirit possession experiences are not uncommon; in some instances, culturally, they can be expressed as ‘amafufunyana’, while religiously, the term demonic/spirit possession holds true. The symptoms of a spirit possession state, should be of interest to psychology, given the similarity of its symptoms with those that are often typical of a psychological diagnosis, such as dissociation, hallucinations and delusions. While much attention has been given to patient experiences of spirit possession, little attention has been focused on the cultural competence required in working with patients with diverse worldviews. This study explores psychologists perceived cultural competence in working with patients who present with the experience of being possessed by a spirit. This exploration becomes more interesting, given that little to no attention in the literature has focused on the role and influence of psychologists religious and cultural belief systems and how these may influence (if at all), the understanding, diagnosis and treatment of a patient who believes that they are possessed. The researcher employed a qualitative method and design. Participants were recruited through use of a purposive sampling technique. Twelve psychologists agreed to participate in the study and thematic analysis was used to analyze the data, by following a data analysis method by Braun and Clarke (2006). Four themes were identified namely, 1) Psychologists’ understanding and treatment of dissociative disorders/states, 2) Psychologists’ understanding of spirit possession; 3) Spirit possession experiences versus psychological disturbances; and 4) Cultural acknowledgement versus cultural considerations-implications for cultural competence. Findings from the study suggest that it is not only cultural considerations that is Running Head: An Exploration of Spirit Possession and Psychological Praxis in South Africa: Implications for a Culturally Competent Psychological Practice. xv needed within psychological practice, but that a sense of cultural acknowledgement is needed in order to bring about potential holistic healing, and more specifically, aid cultural competence within psychological practice. This, according to the findings of the study, can be done through collaboration between various professionals or practitioners- furthermore creating a platform for the inclusion of pluralism within mental healthcare services. , Thesis (MA) -- Faculty of Health Sciences, 2021
- Full Text: false
- Date Issued: 2021-04
- Authors: Yew-Siong, Lauren Cindy
- Date: 2021-04
- Subjects: Spirit possession -- South Africa -- Psychological aspects , Cultural competence -- South Africa -- Psychological aspects
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/52394 , vital:43635
- Description: Spirit possession has been documented in human history and evidence of it, still exists globally. In South Africa, spirit possession experiences are not uncommon; in some instances, culturally, they can be expressed as ‘amafufunyana’, while religiously, the term demonic/spirit possession holds true. The symptoms of a spirit possession state, should be of interest to psychology, given the similarity of its symptoms with those that are often typical of a psychological diagnosis, such as dissociation, hallucinations and delusions. While much attention has been given to patient experiences of spirit possession, little attention has been focused on the cultural competence required in working with patients with diverse worldviews. This study explores psychologists perceived cultural competence in working with patients who present with the experience of being possessed by a spirit. This exploration becomes more interesting, given that little to no attention in the literature has focused on the role and influence of psychologists religious and cultural belief systems and how these may influence (if at all), the understanding, diagnosis and treatment of a patient who believes that they are possessed. The researcher employed a qualitative method and design. Participants were recruited through use of a purposive sampling technique. Twelve psychologists agreed to participate in the study and thematic analysis was used to analyze the data, by following a data analysis method by Braun and Clarke (2006). Four themes were identified namely, 1) Psychologists’ understanding and treatment of dissociative disorders/states, 2) Psychologists’ understanding of spirit possession; 3) Spirit possession experiences versus psychological disturbances; and 4) Cultural acknowledgement versus cultural considerations-implications for cultural competence. Findings from the study suggest that it is not only cultural considerations that is Running Head: An Exploration of Spirit Possession and Psychological Praxis in South Africa: Implications for a Culturally Competent Psychological Practice. xv needed within psychological practice, but that a sense of cultural acknowledgement is needed in order to bring about potential holistic healing, and more specifically, aid cultural competence within psychological practice. This, according to the findings of the study, can be done through collaboration between various professionals or practitioners- furthermore creating a platform for the inclusion of pluralism within mental healthcare services. , Thesis (MA) -- Faculty of Health Sciences, 2021
- Full Text: false
- Date Issued: 2021-04
Learning about volunteering: an exploration of literacy volunteers' experiences
- Authors: Yendall, Kaitlin Amy
- Date: 2020
- Subjects: Literacy -- Study and teaching -- South Africa , Literacy programs -- South Africa , Voluntarism -- South Africa , Volunteer workers in community development -- Training of , Service learning , Language and education -- South Africa , Language arts (Primary) , English language -- Study and teaching (Elementary) , Volunteer workers in Education -- Training of
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/138336 , vital:37623
- Description: After almost 25 years of democracy in South Africa, not everyone has access to the same quality education. The responsibility of creating a literate society however cannot rely on the national government and schools alone, but instead needs to fall on the shoulders of various stakeholders. Volunteers in particular have an important role to play in remedying the current literacy crisis experienced in South Africa. This study takes the form of a case study approach and examines the experiences of Project Read literacy volunteers. A telephonic survey and two focus group discussions were conducted in order to determine who it is that volunteers for the programme; what prompts these particular individuals to volunteer; the perceived benefits of volunteering; and how volunteers report on their volunteering experiences. Although the Project Read programme is focused on the early literacy development of learners, volunteers seemed to undergo a developmental process themselves – something they had not anticipated at the start of their volunteering journey. This study illustrates the power of meaningful relationships in breaking down artificial categories and in bringing about important change with regards to the perceptions and attitudes of individuals towards community engagement. It is hoped that the data generated through this study will assist in recruiting and retaining more literacy volunteers through feedback to the NGO. In this way more children will be assisted to enhance their literacy competencies, from which they can build and achieve.
- Full Text:
- Date Issued: 2020
- Authors: Yendall, Kaitlin Amy
- Date: 2020
- Subjects: Literacy -- Study and teaching -- South Africa , Literacy programs -- South Africa , Voluntarism -- South Africa , Volunteer workers in community development -- Training of , Service learning , Language and education -- South Africa , Language arts (Primary) , English language -- Study and teaching (Elementary) , Volunteer workers in Education -- Training of
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/138336 , vital:37623
- Description: After almost 25 years of democracy in South Africa, not everyone has access to the same quality education. The responsibility of creating a literate society however cannot rely on the national government and schools alone, but instead needs to fall on the shoulders of various stakeholders. Volunteers in particular have an important role to play in remedying the current literacy crisis experienced in South Africa. This study takes the form of a case study approach and examines the experiences of Project Read literacy volunteers. A telephonic survey and two focus group discussions were conducted in order to determine who it is that volunteers for the programme; what prompts these particular individuals to volunteer; the perceived benefits of volunteering; and how volunteers report on their volunteering experiences. Although the Project Read programme is focused on the early literacy development of learners, volunteers seemed to undergo a developmental process themselves – something they had not anticipated at the start of their volunteering journey. This study illustrates the power of meaningful relationships in breaking down artificial categories and in bringing about important change with regards to the perceptions and attitudes of individuals towards community engagement. It is hoped that the data generated through this study will assist in recruiting and retaining more literacy volunteers through feedback to the NGO. In this way more children will be assisted to enhance their literacy competencies, from which they can build and achieve.
- Full Text:
- Date Issued: 2020
Native-range studies on insect herbivores associated with African Lovegrass (Eragrostis curvula) in South Africa: prospects for biological control in Australia
- Authors: Yell, Liam Dougal
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424446 , vital:72154
- Description: Eragrostis curvula (Schrad.) Nees. (African Lovegrass) is an African native species of grass that was intentionally introduced for pasture in Australia. It has since escaped cultivation and has become widespread and highly invasive. Eragrostis curvula has been recorded in every state and territory in Australia where it has altered fire regimes, disrupted nutrient cycles and can reduce livestock carrying capacity by up to 50%. The Centre for Biological Control at Rhodes University and the New South Wales Department of Primary Industries have been working in collaboration to identify and screen herbivorous insects as biological control agents for E. curvula in Australia. Native-range surveys were conducted between 2021 and 2022 on E. curvula at twenty-two sites across South Africa to identify herbivorous natural enemies associated with it. Species accumulation curves were generated to ensure adequate sampling was performed to identify all the insects associated with E. curvula. Twenty-nine non-target grass species were surveyed simultaneously to determine the field-host range of the natural enemies associated with the target weed. Herbivorous natural enemies were prioritised as possible biological control agents against E. curvula in Australia based on field-host range, predicted efficacy and climatic suitability. Four insect species were consistently found on E. curvula, two of which were herbivorous, as well as a parasitoid and a detritivore. Species accumulation curves show that the insect community was adequately sampled in South Africa. The two herbivorous insects were identified to the lowest taxonomic level using COI barcoding. Both species are undescribed phytophagous wasps in the genus Tetramesa (Hymenoptera: Eurytomidae). Because Tetramesa species have been shown to be host specific and highly damaging in previous biological control programs for other invasive grass weeds, we assessed their suitability as candidate biological control agents for use on E. curvula in Australia. Both Tetramesa species (“sp. 4” and “sp. 5”) were found on several native congeners under field conditions in South Africa. Congeneric South African-native non-target grass species were used as phylogenetic proxies to assess the risk posed to Australian native Eragrostis species. This highlighted three non-target Australian native Eragrostis species, namely: E. parviflora (R. Br.) Trin., E. leptocarpa Benth. fl., and E. trachycarpa Benth., that are at risk of being attacked by the two candidate agents based on their phylogenetic proximity to E. curvula. Predicted efficacy trials were conducted at five long-term repeat survey sites and revealed that Tetramesa sp. 4 does not reduce the probability of E. curvula tiller survival or reproduction, while Tetramesa sp. 5 does not reduce the probability of tiller reproduction but does increase the probability of tiller survival. This result was unexpected and may be a plant compensatory response to herbivory. The sites where both Tetramesa species were collected in South Africa are climatically similar to the invaded range of E. curvula in Australia, and as such, the Tetramesa spp. are likely to be suitably adapted to the climate where they would be released in Australia. These results suggest that both Tetramesa species associated with E. curvula may have too broad a host range to be used as biological control agents in Australia. However, further quarantine-based host-range assessments on Australian native Eragrostis species are recommended to confirm this. The field-based methods used in this study have reduced the number of insect and plant species that host-range assessments will be required to be performed on, thus preventing wasted resources. , Thesis (MSc) -- Faculty of Science, Zoology and Entomology, 2023
- Full Text:
- Date Issued: 2023-10-13
- Authors: Yell, Liam Dougal
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424446 , vital:72154
- Description: Eragrostis curvula (Schrad.) Nees. (African Lovegrass) is an African native species of grass that was intentionally introduced for pasture in Australia. It has since escaped cultivation and has become widespread and highly invasive. Eragrostis curvula has been recorded in every state and territory in Australia where it has altered fire regimes, disrupted nutrient cycles and can reduce livestock carrying capacity by up to 50%. The Centre for Biological Control at Rhodes University and the New South Wales Department of Primary Industries have been working in collaboration to identify and screen herbivorous insects as biological control agents for E. curvula in Australia. Native-range surveys were conducted between 2021 and 2022 on E. curvula at twenty-two sites across South Africa to identify herbivorous natural enemies associated with it. Species accumulation curves were generated to ensure adequate sampling was performed to identify all the insects associated with E. curvula. Twenty-nine non-target grass species were surveyed simultaneously to determine the field-host range of the natural enemies associated with the target weed. Herbivorous natural enemies were prioritised as possible biological control agents against E. curvula in Australia based on field-host range, predicted efficacy and climatic suitability. Four insect species were consistently found on E. curvula, two of which were herbivorous, as well as a parasitoid and a detritivore. Species accumulation curves show that the insect community was adequately sampled in South Africa. The two herbivorous insects were identified to the lowest taxonomic level using COI barcoding. Both species are undescribed phytophagous wasps in the genus Tetramesa (Hymenoptera: Eurytomidae). Because Tetramesa species have been shown to be host specific and highly damaging in previous biological control programs for other invasive grass weeds, we assessed their suitability as candidate biological control agents for use on E. curvula in Australia. Both Tetramesa species (“sp. 4” and “sp. 5”) were found on several native congeners under field conditions in South Africa. Congeneric South African-native non-target grass species were used as phylogenetic proxies to assess the risk posed to Australian native Eragrostis species. This highlighted three non-target Australian native Eragrostis species, namely: E. parviflora (R. Br.) Trin., E. leptocarpa Benth. fl., and E. trachycarpa Benth., that are at risk of being attacked by the two candidate agents based on their phylogenetic proximity to E. curvula. Predicted efficacy trials were conducted at five long-term repeat survey sites and revealed that Tetramesa sp. 4 does not reduce the probability of E. curvula tiller survival or reproduction, while Tetramesa sp. 5 does not reduce the probability of tiller reproduction but does increase the probability of tiller survival. This result was unexpected and may be a plant compensatory response to herbivory. The sites where both Tetramesa species were collected in South Africa are climatically similar to the invaded range of E. curvula in Australia, and as such, the Tetramesa spp. are likely to be suitably adapted to the climate where they would be released in Australia. These results suggest that both Tetramesa species associated with E. curvula may have too broad a host range to be used as biological control agents in Australia. However, further quarantine-based host-range assessments on Australian native Eragrostis species are recommended to confirm this. The field-based methods used in this study have reduced the number of insect and plant species that host-range assessments will be required to be performed on, thus preventing wasted resources. , Thesis (MSc) -- Faculty of Science, Zoology and Entomology, 2023
- Full Text:
- Date Issued: 2023-10-13
The life and times of Kama Chungwa, 1798-1875
- Authors: Yekela, Drusilla Siziwe
- Date: 1989
- Subjects: Kama, William, 1798-1875 , Shaw, William, 1798-1872 , Methodist Church of Southern Africa -- Missions , Gqunukhwebe (African people) -- History , Wesleyville mission , Gqunukhwebe (African people) -- Kings and rulers , South Africa -- History -- Frontier Wars, 1811-1878 , South Africa -- History -- Xhosa Cattle-Killing, 1856-1857 , Converts -- South Africa , Cape of Good Hope (South Africa) -- Politics and government
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2520 , http://hdl.handle.net/10962/d1001849
- Description: Few students of History understand the derivation and/or origin of the Gqunukhwebe oath "Ndifung' uChungw' efel' ennyameni: I swear by Chungwa who is lying dead at Mnyameni (Alexandria)." A desire to eludicate this point and other related facts inspired me to undertake a close examination of the history of the Gqunukhwebe people, selecting as my main theme the life-work of Chief Kama. In the first chapter I am discussing the creation of the Gqunukhwebe Chiefdom under Khwane by the Xhosa King, Tshiwo. The central theme here is the Black-White confrontation of the 17th - 18th centuries on the Cape Eastern Frontier. As a result of the collision the Gqunukhwebe people were forced to make a home on the banks of the Thwecu River along the east coast. It was here that Kama reached early manhood. The second chapter describes the establishment of Wesleyville Missionary Station by William Shaw in 1823, the first Methodist Missionary Institution in all Xhosaland. In chapter three the discussion centers on the significance of Kama's conversion. An unforeseen outcome of his public profession of the Christian faith was that it not only stigmatized the latter religion as a force destructive of the old order in Xhosa society, but it also reshaped Kama's political image for the good of his religious life. He not only fled from the neighbourhood of his relations and sojourned in a strange land, but also reinforced the Colonial forces in the contemporary frontier struggles. His integrity, self-sacrifice and pro-Colonial inclination eventually won him Middledrift. Chapter four opens with Kama's settling in Middledrift. The theme here is two-pronged. It presents the 'Cattle-Killing' delusion as a source of new trials for the 'priest-chief', and at the same time exposes the Colonial Government's efforts to gain ascendancy above the Xhosa chiefs. Kama's land was the first testing ground in this respect, and the Chief was initially agreeable to the scheme. Chapter five alludes to instances of Chief Kama's unco-operative attitude as signs that his compromising spirit had its limits. An atmosphere of disregard towards Kama pervades the period. But the adversities that threatened to dominate his later life did not by any means shake his Christian principles and convictions. The traces of his good works may to this day be seen in Middledrift, the traditional home of the Kamas.
- Full Text:
- Date Issued: 1989
- Authors: Yekela, Drusilla Siziwe
- Date: 1989
- Subjects: Kama, William, 1798-1875 , Shaw, William, 1798-1872 , Methodist Church of Southern Africa -- Missions , Gqunukhwebe (African people) -- History , Wesleyville mission , Gqunukhwebe (African people) -- Kings and rulers , South Africa -- History -- Frontier Wars, 1811-1878 , South Africa -- History -- Xhosa Cattle-Killing, 1856-1857 , Converts -- South Africa , Cape of Good Hope (South Africa) -- Politics and government
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2520 , http://hdl.handle.net/10962/d1001849
- Description: Few students of History understand the derivation and/or origin of the Gqunukhwebe oath "Ndifung' uChungw' efel' ennyameni: I swear by Chungwa who is lying dead at Mnyameni (Alexandria)." A desire to eludicate this point and other related facts inspired me to undertake a close examination of the history of the Gqunukhwebe people, selecting as my main theme the life-work of Chief Kama. In the first chapter I am discussing the creation of the Gqunukhwebe Chiefdom under Khwane by the Xhosa King, Tshiwo. The central theme here is the Black-White confrontation of the 17th - 18th centuries on the Cape Eastern Frontier. As a result of the collision the Gqunukhwebe people were forced to make a home on the banks of the Thwecu River along the east coast. It was here that Kama reached early manhood. The second chapter describes the establishment of Wesleyville Missionary Station by William Shaw in 1823, the first Methodist Missionary Institution in all Xhosaland. In chapter three the discussion centers on the significance of Kama's conversion. An unforeseen outcome of his public profession of the Christian faith was that it not only stigmatized the latter religion as a force destructive of the old order in Xhosa society, but it also reshaped Kama's political image for the good of his religious life. He not only fled from the neighbourhood of his relations and sojourned in a strange land, but also reinforced the Colonial forces in the contemporary frontier struggles. His integrity, self-sacrifice and pro-Colonial inclination eventually won him Middledrift. Chapter four opens with Kama's settling in Middledrift. The theme here is two-pronged. It presents the 'Cattle-Killing' delusion as a source of new trials for the 'priest-chief', and at the same time exposes the Colonial Government's efforts to gain ascendancy above the Xhosa chiefs. Kama's land was the first testing ground in this respect, and the Chief was initially agreeable to the scheme. Chapter five alludes to instances of Chief Kama's unco-operative attitude as signs that his compromising spirit had its limits. An atmosphere of disregard towards Kama pervades the period. But the adversities that threatened to dominate his later life did not by any means shake his Christian principles and convictions. The traces of his good works may to this day be seen in Middledrift, the traditional home of the Kamas.
- Full Text:
- Date Issued: 1989
Young Workers Issue 14 - May Day Solidarity
- YCW
- Authors: YCW
- Subjects: YCW
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/118589 , vital:34649
- Description: The 1st of May is known all over the world as the INTERNATIONAL LABOUR DAY. It is a day when workers pledge their struggle for better working and living conditions. It is a day of showing a link of workers struggle in different countries of the world. It is a symbol of taking forward their struggle against the CAPITALIST SYSTEM and to take control over their lives. In 1890 the Second International Workers Congress accepted MAY DAY as an INTERNATIONAL DAY OF SOLIDARITY FOR ALL THE WORKERS OF THE WORLD. Recently in South Africa, fight for May Day to be recognised as a paid public holiday is once more on the agenda of the worker movement. This demand comes at a time when workers have continued to build their trade unions. Thanks to the militant struggles of the early 70's which paved the way for the present strenght of the unions. Already many companies have signed agreements to recognise May Day as a paid holiday. Last year the 100 Annivesary of May Day was celebrated with militance and dignity. More than 1,5 million workers supported the call to attend the rallies which were held all over the country. The Labour Monitoring Group reported that it was the biggest stay-away in over 25 years. The biggest rally organised by COSATU at Orlando Stadium attend ed by close to 20 000 people. Last year support for MAY DAY symboli- shed that workers are beginning to decide what holidays they want and not the states idea of holidays. Its a symbol of hope for the working class that to build a society based on the principal of workers control, workers have to be incontrol of these actions.
- Full Text:
- Authors: YCW
- Subjects: YCW
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/118589 , vital:34649
- Description: The 1st of May is known all over the world as the INTERNATIONAL LABOUR DAY. It is a day when workers pledge their struggle for better working and living conditions. It is a day of showing a link of workers struggle in different countries of the world. It is a symbol of taking forward their struggle against the CAPITALIST SYSTEM and to take control over their lives. In 1890 the Second International Workers Congress accepted MAY DAY as an INTERNATIONAL DAY OF SOLIDARITY FOR ALL THE WORKERS OF THE WORLD. Recently in South Africa, fight for May Day to be recognised as a paid public holiday is once more on the agenda of the worker movement. This demand comes at a time when workers have continued to build their trade unions. Thanks to the militant struggles of the early 70's which paved the way for the present strenght of the unions. Already many companies have signed agreements to recognise May Day as a paid holiday. Last year the 100 Annivesary of May Day was celebrated with militance and dignity. More than 1,5 million workers supported the call to attend the rallies which were held all over the country. The Labour Monitoring Group reported that it was the biggest stay-away in over 25 years. The biggest rally organised by COSATU at Orlando Stadium attend ed by close to 20 000 people. Last year support for MAY DAY symboli- shed that workers are beginning to decide what holidays they want and not the states idea of holidays. Its a symbol of hope for the working class that to build a society based on the principal of workers control, workers have to be incontrol of these actions.
- Full Text:
Photophysical and photochemical properties of novel phthalocyanines bearing non-peripherally substituted mercaptoquinoline moiety
- Yaşa, Göknur, Erdoğmuş, Ali, Uğur, Ahmet Lütf, Şener, M Kasım, Avcıata, Ulvi, Nyokong, Tebello
- Authors: Yaşa, Göknur , Erdoğmuş, Ali , Uğur, Ahmet Lütf , Şener, M Kasım , Avcıata, Ulvi , Nyokong, Tebello
- Date: 2012
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/244360 , vital:51250 , xlink:href="https://doi.org/10.1142/S1088424612500940"
- Description: The synthesis, photophysical and photochemical properties of nonperipherally (a) mercaptoquinoline substituted Zn(II), TiO(IV) and Mg(II) and quaternized Zn(II) phthalocyanines are described for the first time. These complexes (2 to 5) and their precursor are characterized by elemental analysis, FT-IR, 1 H NMR, electronic spectroscopy as well as mass spectroscopy. Complexes 2, 4 and 5 have good solubility in organic solvents such as CHCl3, DCM, DMSO, DMF, THF and toluene and are not aggregated in all solvents within a wide concentration range. Complex 3 showed very good solubility in water as well as DMSO and DMF. General trends are described for singlet oxygen, photodegradation and fluorescence quantum yields of these complexes in DMSO and DMF. While complex 2 has higher singlet oxygen and fluorescence quantum yields than 3, 4 and 5, complex 4 has higher fluorescence quantum yields in DMF and DMSO than 2, 3 and 5. The effect of the solvents and metal on the photophysical and photochemical parameters of the metallophthalocyanines are also reported.
- Full Text:
- Date Issued: 2012
- Authors: Yaşa, Göknur , Erdoğmuş, Ali , Uğur, Ahmet Lütf , Şener, M Kasım , Avcıata, Ulvi , Nyokong, Tebello
- Date: 2012
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/244360 , vital:51250 , xlink:href="https://doi.org/10.1142/S1088424612500940"
- Description: The synthesis, photophysical and photochemical properties of nonperipherally (a) mercaptoquinoline substituted Zn(II), TiO(IV) and Mg(II) and quaternized Zn(II) phthalocyanines are described for the first time. These complexes (2 to 5) and their precursor are characterized by elemental analysis, FT-IR, 1 H NMR, electronic spectroscopy as well as mass spectroscopy. Complexes 2, 4 and 5 have good solubility in organic solvents such as CHCl3, DCM, DMSO, DMF, THF and toluene and are not aggregated in all solvents within a wide concentration range. Complex 3 showed very good solubility in water as well as DMSO and DMF. General trends are described for singlet oxygen, photodegradation and fluorescence quantum yields of these complexes in DMSO and DMF. While complex 2 has higher singlet oxygen and fluorescence quantum yields than 3, 4 and 5, complex 4 has higher fluorescence quantum yields in DMF and DMSO than 2, 3 and 5. The effect of the solvents and metal on the photophysical and photochemical parameters of the metallophthalocyanines are also reported.
- Full Text:
- Date Issued: 2012
Conference on the History of Opposition in Southern Africa
- Authors: Yawitch, Joanne
- Date: 1978-01-27-30
- Subjects: Riots -- South Africa -- Durban , Beer -- South Africa -- Durban -- History , Women, Black -- Durban -- Economic conditions -- Congresses , Black people -- South Africa -- Durban -- Social conditions -- Congresses , Apartheid -- South Africa -- Durban -- History
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/66623 , vital:28972
- Description: In June 1959 there were widespread riots and disturbances in the Durban African area of Cato Manor. The fundamental causes were socio-economic; arising from such factors as poor living conditions and widespread poverty. But it was the exhaustive beer-raids on illegal stills that provided a flashpoint. It was illegal for Africans to brew their own beer; instead they were obliged to purchase it from the municipal beer-halls - the money then being used for the development and administration of African facilities, (l) Amongst the inhabitants of Cato Manor and particularly amongst women who traditionally brewed the beer, this caused much dissatisfaction. However, discontent was prevented from reaching breaking -point by the police strategy of ignoring illegal brewing as long as amounts did not exceed more than k to 8 gallons, and also by only carrying out very perfunctory raids. (2) Another dimension was added to the beer-hall issue in the form of complaints by women that this was not the traditional way of doing things. They said that men should obtain beer from their women instead of frequenting the beer halls, and more importantly, by patronising the beer-halls, men were depriving their women of what little money they could have paid them. (3) In this complaint centering around the fact that an element of traditional life was being disrupted, is contained another issue of basic importance to the Natal riots in general. The policies of the government as implemented by the Durban Corporation in the case of Cato Manor meant the fragmentation of a traditional and still important social order. The economic function of the women of Cato Manor, and ass will be seen later, of most Natal women was being removed. In addition to basic deprivation it was this factor that can to a large extent be seen as the reason for the intensity and militancy of the women's attacks on the beer-halls and on Corporation property. Cato Manor was an area unique among the locations and townships of Durban. Its inhabitants had moved there in the years just after the war without any official sanction. Cato Manor was unplanned, and as a result of its spontaneous creation far less controlled and policed than any of the townships set up as a result of government planning. Because of this freedom Cato Manor was a haven for all those who were illegally in the urban areas, or whose livelihood contravened the multitude of rules and regulations governing the lives of Africans. Cato Manor's large population of shebeen queens owed its existence to this lack of control. (4) In 1958 there had been considerable discontent and unrest in Cato Manor over the attempt to implement shack-removal schemes, thereby clearing the slum and transferring much of its population to the new township of Kwa Mashu. At Kwa Mashu where rents were higher and which was also less centrally situated than Cato Manor, there was far more rigid control. Removals would have in effect meant that. Cato Manor's large illegal population, including the shebeen Queens and petty traders, would have been deprived of their livelihoods or endorsed out of the urban areas. (5) It was in this context that threats of a Typhoid epidemic in June 1959 caused the Durban Corporation to decide to radically increase and improve sanitation measures in Cato Manor, and to eliminate any conditions conducive to the breeding of flies. The refusal of the inhabitants of Cato Manor to do away with the large quantities of illegal liquor negated the health measures taken by the authorities. Finally, municipal labourers were ordered to enter Cato Manor and destroy all stills. The resentment aroused by this action caused a large group of women to march on the Booth Road Beerhall on June 17th whereupon they chased out the male customers and destroyed the beer. (6) The rioting spread rapidly to other Durban beerhalls and a large proportion of the Corporations property was destroyed. In addition, a successful beer boycott was launched. In Cato Manor violence had subsided by the beginning of July at which time it had already spread to such areas as Verulam and Umbumbulu. Six weeks after the initial rioting essential services had not yet been restored fully in Cato Manor. By the beginning of August unrest was rife in many of Natal's smaller towns as well as a large section of the rural areas.
- Full Text:
- Date Issued: 1978-01-27-30
- Authors: Yawitch, Joanne
- Date: 1978-01-27-30
- Subjects: Riots -- South Africa -- Durban , Beer -- South Africa -- Durban -- History , Women, Black -- Durban -- Economic conditions -- Congresses , Black people -- South Africa -- Durban -- Social conditions -- Congresses , Apartheid -- South Africa -- Durban -- History
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/66623 , vital:28972
- Description: In June 1959 there were widespread riots and disturbances in the Durban African area of Cato Manor. The fundamental causes were socio-economic; arising from such factors as poor living conditions and widespread poverty. But it was the exhaustive beer-raids on illegal stills that provided a flashpoint. It was illegal for Africans to brew their own beer; instead they were obliged to purchase it from the municipal beer-halls - the money then being used for the development and administration of African facilities, (l) Amongst the inhabitants of Cato Manor and particularly amongst women who traditionally brewed the beer, this caused much dissatisfaction. However, discontent was prevented from reaching breaking -point by the police strategy of ignoring illegal brewing as long as amounts did not exceed more than k to 8 gallons, and also by only carrying out very perfunctory raids. (2) Another dimension was added to the beer-hall issue in the form of complaints by women that this was not the traditional way of doing things. They said that men should obtain beer from their women instead of frequenting the beer halls, and more importantly, by patronising the beer-halls, men were depriving their women of what little money they could have paid them. (3) In this complaint centering around the fact that an element of traditional life was being disrupted, is contained another issue of basic importance to the Natal riots in general. The policies of the government as implemented by the Durban Corporation in the case of Cato Manor meant the fragmentation of a traditional and still important social order. The economic function of the women of Cato Manor, and ass will be seen later, of most Natal women was being removed. In addition to basic deprivation it was this factor that can to a large extent be seen as the reason for the intensity and militancy of the women's attacks on the beer-halls and on Corporation property. Cato Manor was an area unique among the locations and townships of Durban. Its inhabitants had moved there in the years just after the war without any official sanction. Cato Manor was unplanned, and as a result of its spontaneous creation far less controlled and policed than any of the townships set up as a result of government planning. Because of this freedom Cato Manor was a haven for all those who were illegally in the urban areas, or whose livelihood contravened the multitude of rules and regulations governing the lives of Africans. Cato Manor's large population of shebeen queens owed its existence to this lack of control. (4) In 1958 there had been considerable discontent and unrest in Cato Manor over the attempt to implement shack-removal schemes, thereby clearing the slum and transferring much of its population to the new township of Kwa Mashu. At Kwa Mashu where rents were higher and which was also less centrally situated than Cato Manor, there was far more rigid control. Removals would have in effect meant that. Cato Manor's large illegal population, including the shebeen Queens and petty traders, would have been deprived of their livelihoods or endorsed out of the urban areas. (5) It was in this context that threats of a Typhoid epidemic in June 1959 caused the Durban Corporation to decide to radically increase and improve sanitation measures in Cato Manor, and to eliminate any conditions conducive to the breeding of flies. The refusal of the inhabitants of Cato Manor to do away with the large quantities of illegal liquor negated the health measures taken by the authorities. Finally, municipal labourers were ordered to enter Cato Manor and destroy all stills. The resentment aroused by this action caused a large group of women to march on the Booth Road Beerhall on June 17th whereupon they chased out the male customers and destroyed the beer. (6) The rioting spread rapidly to other Durban beerhalls and a large proportion of the Corporations property was destroyed. In addition, a successful beer boycott was launched. In Cato Manor violence had subsided by the beginning of July at which time it had already spread to such areas as Verulam and Umbumbulu. Six weeks after the initial rioting essential services had not yet been restored fully in Cato Manor. By the beginning of August unrest was rife in many of Natal's smaller towns as well as a large section of the rural areas.
- Full Text:
- Date Issued: 1978-01-27-30
: the representation of rape in Lewis Nkosi’s Mating Birds and Arthur Maimane’s Hate No More
- Authors: Yawa, Sibulele Yola
- Date: 2021-02
- Subjects: South Africa--Politics and government--1994 , Post-apartheid era--South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/21134 , vital:47131
- Description: The main aim of this thesis is to provide a literary study through a comparative analysis of how sexual politics are played out in the texts Mating Birds by Lewis Nkosi and Hate No More by Arthur Maimane. It seeks to determine the modalities of representation of rape in each text and also to investigate the extent to which the novels are similar or different in the way in which they represent sexual politics or the politics of rape during the apartheid era. This investigation was done using Frantz Fanon‟s postcolonial theory and, particularly, his seminal work, Black Skin, White Masks. Most importantly, for the purpose of this study, is Fanon‟s chapter on the love/sexual relationships between the man of colour and the white woman. This is helpful as Fanon touches on what he believes the attraction of the man of colour to the white woman stems from. Using Fanon‟s theory, one discovers that the motivation for Ndi Sibiya to allegedly rape Veronica stems from his anger at the system of apartheid and its oppression of black people. This is similar to Philip Mokone‟s case; the novel explicitly states that he was motivated by anger and his rape of Jean Ryan was a form of communication to the white people and the apartheid system. , Thesis (MA) (English) -- University of Fort Hare, 2021
- Full Text:
- Date Issued: 2021-02
- Authors: Yawa, Sibulele Yola
- Date: 2021-02
- Subjects: South Africa--Politics and government--1994 , Post-apartheid era--South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/21134 , vital:47131
- Description: The main aim of this thesis is to provide a literary study through a comparative analysis of how sexual politics are played out in the texts Mating Birds by Lewis Nkosi and Hate No More by Arthur Maimane. It seeks to determine the modalities of representation of rape in each text and also to investigate the extent to which the novels are similar or different in the way in which they represent sexual politics or the politics of rape during the apartheid era. This investigation was done using Frantz Fanon‟s postcolonial theory and, particularly, his seminal work, Black Skin, White Masks. Most importantly, for the purpose of this study, is Fanon‟s chapter on the love/sexual relationships between the man of colour and the white woman. This is helpful as Fanon touches on what he believes the attraction of the man of colour to the white woman stems from. Using Fanon‟s theory, one discovers that the motivation for Ndi Sibiya to allegedly rape Veronica stems from his anger at the system of apartheid and its oppression of black people. This is similar to Philip Mokone‟s case; the novel explicitly states that he was motivated by anger and his rape of Jean Ryan was a form of communication to the white people and the apartheid system. , Thesis (MA) (English) -- University of Fort Hare, 2021
- Full Text:
- Date Issued: 2021-02
Determination of acaricide resistance profiles, and geographic range of boophilid Rhipicephalus tick spp. (Acari: Ixodidae), and sero-status of tick-borne pathogens on communal cattle in the north-eastern regions of the Eastern Cape Province, South Africa
- Yawa, Mandla https://orcid.org/0000-0002-2402-298X
- Authors: Yawa, Mandla https://orcid.org/0000-0002-2402-298X
- Date: 2021-09
- Subjects: Cattle -- Diseases , Ticks as carriers of disease , Ticks
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/21590 , vital:49356
- Description: Cattle industry improves livelihoods for many developing farmers in South Africa, however, ticks and tick-borne diseases (TBDs) pose a detriment impact on cattle success; this is due to their resistance to acaricide application. Thus, this study was conducted to determine the extent of acaricide resistance, serostatus of tick-borne pathogens, and geographic range of boophilid ticks in communal grazing cattle in the north-eastern regions of the Eastern Cape Province (ECP), South Africa. A total of 160 structured questionnaires were prepared and randomly administered to cattle farmers to investigate their knowledge, attitudes, and practice on ticks and TBDs affecting cattle, tick control methods used, and their knowledge of acaricide resistance. Engorged visible cattle ticks were collected seasonally from 10 randomly selected cattle from the community cattle herds during dipping days between October 2018 and September 2019, and stored into the labelled test tubes containing 70 percent ethanol. For TBDs determination, a total of 240 cattle from Elundini and Senqu Municipalities were seasonally used to investigate the prevalence of ticks and TBDs, packed cell volume (PCV), and body condition scores (BCS). Shaw Larval Immersion Test (SLIT) method was used to determine the resistance of Rhipicephalus decoloratus larvae to various acaricides such as amidines, organophosphate, and synthetic pyrethroids. This study indicates that approximately 59 percent of the interviewed cattle farmers had no knowledge of the effect of TBDs affecting cattle production, and 78 percent of respondents considered ticks are the major challenge to the success of their cattle farming. Pour-on (61 percent) was the most commonly used acaricidal treatment system with fortnightly (40 percent and 31percent) treatment frequencies during the summer and winter seasons respectively. Synthetic pyrethroids (73 percent) were the most used acaricide compounds to control ticks. Moreover, approximately 85 percent of respondents perceived that they do not practice acaricide rotation, and 88 percent of the respondents had no knowledge of acaricide resistance. Interestingly, the current study record Rhipicephalus microplus for the first time at Elundini, Senqu, and Walter Sisulu. Based on the morphological traits, a total of 6176 ticks belonging to two boophilid tick species of Rhipicephalus were identified: R. decoloratus (98 percent) and R. microplus (2 percent). Rhipicephalus decoloratus was significantly higher (P<0.05) in Elundini during the hot-dry (3.37±0.121) and hot-wet (3.35±0.121) seasons compared to other localit ies. In Senqu, R. microplus had high counts (P<0.05) during the post-rainy season (1.06±0.027) compared to other localities. From this present study, it was observed that Ehrlichia ruminantium was the most prevalent at Elundini (16 percent) and (14 percent) during post-rainy and hot-dry seasons respectively and 15 percent at Senqu during the post-rainy season. Babesia bigemina was more frequent at Elundini (18 percent) and Senqu (16 percent) during the post-rainy season and hot-wet season, respectively. Cattle BCS were significantly negatively correlated with E. ruminantium (P<0.01; r = -0.203), B. bovis (P<0.01; r = -0.125), and A. marginale (P < 0.01; r = -0.122). On the other hand, PCV was significantly negatively correlated with B. bigemina (P<0.01; r =-0.138). E. ruminantium was strongly positively correlated with Amblyomma hebraeum (P<0.05; r = 0.112), while B. bovis (P<0.05; r = 0.134) and B. bigemina (P<0.05; r = 0.188) were strong positively correlated with Rhipicephalus microplus infestation and B. bigemina (P<0.05; r = 0.077) with Rhipicephalus decoloratus. During acaricide resistance testing, Shaw Larvae Immersion Testing (SLIT) was only performed on R. decoloratus larvae as engorged R. microplus ticks could not meet the required sample size for resistance testing. The current study found that the majority of the tick were susceptible at exposure to differe nt acaricide field concentrations of amidines (49 percent at 250ppm), organophosphates (33 percent and 47 percent at 300ppm and 500ppm, respectively), and synthetic pyrethroids (44 percent and 23 percent at 150ppm and 300ppm, respectively). In conclusion, less knowledge of cattle farmers on the threat pose by ticks on their cattle production results in the spatio-temporal spread of boophilid tick from region to region and from season to season thus increases incidence and risk for tick resistance. , Thesis (PhD) -- Faculty of Science and Agriculture, 2021
- Full Text:
- Date Issued: 2021-09
- Authors: Yawa, Mandla https://orcid.org/0000-0002-2402-298X
- Date: 2021-09
- Subjects: Cattle -- Diseases , Ticks as carriers of disease , Ticks
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/21590 , vital:49356
- Description: Cattle industry improves livelihoods for many developing farmers in South Africa, however, ticks and tick-borne diseases (TBDs) pose a detriment impact on cattle success; this is due to their resistance to acaricide application. Thus, this study was conducted to determine the extent of acaricide resistance, serostatus of tick-borne pathogens, and geographic range of boophilid ticks in communal grazing cattle in the north-eastern regions of the Eastern Cape Province (ECP), South Africa. A total of 160 structured questionnaires were prepared and randomly administered to cattle farmers to investigate their knowledge, attitudes, and practice on ticks and TBDs affecting cattle, tick control methods used, and their knowledge of acaricide resistance. Engorged visible cattle ticks were collected seasonally from 10 randomly selected cattle from the community cattle herds during dipping days between October 2018 and September 2019, and stored into the labelled test tubes containing 70 percent ethanol. For TBDs determination, a total of 240 cattle from Elundini and Senqu Municipalities were seasonally used to investigate the prevalence of ticks and TBDs, packed cell volume (PCV), and body condition scores (BCS). Shaw Larval Immersion Test (SLIT) method was used to determine the resistance of Rhipicephalus decoloratus larvae to various acaricides such as amidines, organophosphate, and synthetic pyrethroids. This study indicates that approximately 59 percent of the interviewed cattle farmers had no knowledge of the effect of TBDs affecting cattle production, and 78 percent of respondents considered ticks are the major challenge to the success of their cattle farming. Pour-on (61 percent) was the most commonly used acaricidal treatment system with fortnightly (40 percent and 31percent) treatment frequencies during the summer and winter seasons respectively. Synthetic pyrethroids (73 percent) were the most used acaricide compounds to control ticks. Moreover, approximately 85 percent of respondents perceived that they do not practice acaricide rotation, and 88 percent of the respondents had no knowledge of acaricide resistance. Interestingly, the current study record Rhipicephalus microplus for the first time at Elundini, Senqu, and Walter Sisulu. Based on the morphological traits, a total of 6176 ticks belonging to two boophilid tick species of Rhipicephalus were identified: R. decoloratus (98 percent) and R. microplus (2 percent). Rhipicephalus decoloratus was significantly higher (P<0.05) in Elundini during the hot-dry (3.37±0.121) and hot-wet (3.35±0.121) seasons compared to other localit ies. In Senqu, R. microplus had high counts (P<0.05) during the post-rainy season (1.06±0.027) compared to other localities. From this present study, it was observed that Ehrlichia ruminantium was the most prevalent at Elundini (16 percent) and (14 percent) during post-rainy and hot-dry seasons respectively and 15 percent at Senqu during the post-rainy season. Babesia bigemina was more frequent at Elundini (18 percent) and Senqu (16 percent) during the post-rainy season and hot-wet season, respectively. Cattle BCS were significantly negatively correlated with E. ruminantium (P<0.01; r = -0.203), B. bovis (P<0.01; r = -0.125), and A. marginale (P < 0.01; r = -0.122). On the other hand, PCV was significantly negatively correlated with B. bigemina (P<0.01; r =-0.138). E. ruminantium was strongly positively correlated with Amblyomma hebraeum (P<0.05; r = 0.112), while B. bovis (P<0.05; r = 0.134) and B. bigemina (P<0.05; r = 0.188) were strong positively correlated with Rhipicephalus microplus infestation and B. bigemina (P<0.05; r = 0.077) with Rhipicephalus decoloratus. During acaricide resistance testing, Shaw Larvae Immersion Testing (SLIT) was only performed on R. decoloratus larvae as engorged R. microplus ticks could not meet the required sample size for resistance testing. The current study found that the majority of the tick were susceptible at exposure to differe nt acaricide field concentrations of amidines (49 percent at 250ppm), organophosphates (33 percent and 47 percent at 300ppm and 500ppm, respectively), and synthetic pyrethroids (44 percent and 23 percent at 150ppm and 300ppm, respectively). In conclusion, less knowledge of cattle farmers on the threat pose by ticks on their cattle production results in the spatio-temporal spread of boophilid tick from region to region and from season to season thus increases incidence and risk for tick resistance. , Thesis (PhD) -- Faculty of Science and Agriculture, 2021
- Full Text:
- Date Issued: 2021-09
School feeding programmes in Chimutu, Malawi: opportunities, benefits and challenges
- Authors: Yasin, Janerose
- Date: 2013-12
- Subjects: School children , Children -- Nutrition , Food relief
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/27462 , vital:67330
- Description: Developing countries have the highest dropout as well as non enrollment rates among primary school pupils. However there are efforts to reverse the situation through interventions like school feeding programme to improve schooling outcomes. The aim of this study was specifically to find out the details of why school participation is still a problem among primary school children despite provision of food in primary school. This was achieved through discussions on community members’ participation, benefits and challenges of the school feeding programme. Data collected from key informants and community members using in-depth interviews revealed the benefits and challenges as well as perceptions on community participation. Data was collected from 46 respondents of whom 14 were key informants from government and NGO implementers and 32 community members who are benefiting from the intervention in the area of Traditional Authority Chimutu in Lilongwe District, Malawi. The study found out that although school feeding programme is beneficial through provision of at least a meal a day, it is not meeting some of its objectives. In summary the findings revealed community members acknowledgement that the school feeding programme encourages school attendance and high pupil enrolment. However, the findings revealed that meal provision in school can neither prevent school dropout nor malnutrition due to challenges like inconsistency in feeding frequency, porridge purchase expenses and monitoring and evaluation inadequacies. It was also found that community participation in the school feeding programme does not go beyond porridge preparation. Overall, the study revealed the need for community members involvement at all levels in the feeding programme to achieve sustainable development because the community members are key in identifying and addressing their livelihood challenges. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2013
- Full Text:
- Date Issued: 2013-12
- Authors: Yasin, Janerose
- Date: 2013-12
- Subjects: School children , Children -- Nutrition , Food relief
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/27462 , vital:67330
- Description: Developing countries have the highest dropout as well as non enrollment rates among primary school pupils. However there are efforts to reverse the situation through interventions like school feeding programme to improve schooling outcomes. The aim of this study was specifically to find out the details of why school participation is still a problem among primary school children despite provision of food in primary school. This was achieved through discussions on community members’ participation, benefits and challenges of the school feeding programme. Data collected from key informants and community members using in-depth interviews revealed the benefits and challenges as well as perceptions on community participation. Data was collected from 46 respondents of whom 14 were key informants from government and NGO implementers and 32 community members who are benefiting from the intervention in the area of Traditional Authority Chimutu in Lilongwe District, Malawi. The study found out that although school feeding programme is beneficial through provision of at least a meal a day, it is not meeting some of its objectives. In summary the findings revealed community members acknowledgement that the school feeding programme encourages school attendance and high pupil enrolment. However, the findings revealed that meal provision in school can neither prevent school dropout nor malnutrition due to challenges like inconsistency in feeding frequency, porridge purchase expenses and monitoring and evaluation inadequacies. It was also found that community participation in the school feeding programme does not go beyond porridge preparation. Overall, the study revealed the need for community members involvement at all levels in the feeding programme to achieve sustainable development because the community members are key in identifying and addressing their livelihood challenges. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2013
- Full Text:
- Date Issued: 2013-12
Factors that influence customers’ spaza shopping experience
- Authors: Yase, Tembelihle
- Date: 2022-04
- Subjects: Home-based businesses--South Africa-Port Elizabeth
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55780 , vital:53877
- Description: Spaza shops, originating in South Africa during the 1970’s, often operate in townships, selling products and services to customers who live mostly within walking distance of the shop. Almost five decades later, and spaza shops abound across most townships in South Africa. These businesses not only provide grocery items and services to customers in the township community but are a means for people to earn a livelihood for themselves and also contribute economically through creating employment opportunities in the informal sector. Research about spaza shops shows that there is a growing customer interest in purchasing products and services from spaza shops, and that if spaza shops are to continue growing, they need to be more competitive. Research by renowned authors in the field of experience marketing, Pine and Gilmore (2013) puts forward that experiences are the new relevant economic offering, and an essential value creating platform for businesses to be more competitive. However, before customer experience can be enhanced in spaza shops, it is important to first identify the factors that influence customer experience in a spaza shop context. Considering the latter, the primary objective of this study was to measure factors that influence customer experience in spaza shops. A descriptive research design was selected for this study, followed by a positivistic research paradigm and quantitative research methodology. Secondary data was collected through articles, journals, books and from newspapers. Primary data was collected using a survey in the form of a self-administered questionnaire. The target population for this study was customers who are older than 18 years, who had bought grocery items (products and services) in spaza shops located in Nelson Mandela Bay townships specifically in Walmer Township, KwaZakhele, Zwide, Motherwell, KwaMagxaki and New Brighton. A non-probability sampling method and convenience sampling technique were used to distribute a total of 200 selfadministered questionnaires. Once the data collection phase was completed, the data from the questionnaires was recorded, coded, and cleaned on a single excel spreadsheet. After the latter was done, a total of 185 questionnaires were deemed useable and considered for data analysis, which was conducted with the aid of IBM SPSS Statistics version 27 (computer software). , Thesis (MCom) -- Faculty of Business and Economic Sciences, School of Management Sciences, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Yase, Tembelihle
- Date: 2022-04
- Subjects: Home-based businesses--South Africa-Port Elizabeth
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55780 , vital:53877
- Description: Spaza shops, originating in South Africa during the 1970’s, often operate in townships, selling products and services to customers who live mostly within walking distance of the shop. Almost five decades later, and spaza shops abound across most townships in South Africa. These businesses not only provide grocery items and services to customers in the township community but are a means for people to earn a livelihood for themselves and also contribute economically through creating employment opportunities in the informal sector. Research about spaza shops shows that there is a growing customer interest in purchasing products and services from spaza shops, and that if spaza shops are to continue growing, they need to be more competitive. Research by renowned authors in the field of experience marketing, Pine and Gilmore (2013) puts forward that experiences are the new relevant economic offering, and an essential value creating platform for businesses to be more competitive. However, before customer experience can be enhanced in spaza shops, it is important to first identify the factors that influence customer experience in a spaza shop context. Considering the latter, the primary objective of this study was to measure factors that influence customer experience in spaza shops. A descriptive research design was selected for this study, followed by a positivistic research paradigm and quantitative research methodology. Secondary data was collected through articles, journals, books and from newspapers. Primary data was collected using a survey in the form of a self-administered questionnaire. The target population for this study was customers who are older than 18 years, who had bought grocery items (products and services) in spaza shops located in Nelson Mandela Bay townships specifically in Walmer Township, KwaZakhele, Zwide, Motherwell, KwaMagxaki and New Brighton. A non-probability sampling method and convenience sampling technique were used to distribute a total of 200 selfadministered questionnaires. Once the data collection phase was completed, the data from the questionnaires was recorded, coded, and cleaned on a single excel spreadsheet. After the latter was done, a total of 185 questionnaires were deemed useable and considered for data analysis, which was conducted with the aid of IBM SPSS Statistics version 27 (computer software). , Thesis (MCom) -- Faculty of Business and Economic Sciences, School of Management Sciences, 2022
- Full Text:
- Date Issued: 2022-04
Quantitation of zolpidem in biological fluids by electro-driven microextraction combined with HPLC-UV analysis
- Yaripour, Saeid, Mohammadi, Ali, Esfanjani, Isa, Walker, Roderick B, Nojavan, Saeed
- Authors: Yaripour, Saeid , Mohammadi, Ali , Esfanjani, Isa , Walker, Roderick B , Nojavan, Saeed
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/184723 , vital:44266 , xlink:href="http://dx.doi.org/10.17179/excli2018-1140"
- Description: In this study, for the first time, an electro-driven microextraction method named electromembrane extraction combined with a simple high performance liquid chromatography and ultraviolet detection was developed and validated for the quantitation of zolpidem in biological samples. Parameters influencing electromembrane extraction were evaluated and optimized. The membrane consisted of 2-ethylhexanol immobilized in the pores of a hollow fiber. As a driving force, a 150 V electric field was applied to facilitate the analyte migration from the sample matrix to an acceptor solution through a supported liquid membrane. The pHs of donor and acceptor solutions were optimized to 6.0 and 2.0, respectively. The enrichment factor was obtained >75 within 15 minutes. The effect of carbon nanotubes (as solid nano-sorbents) on the membrane performance and EME efficiency was evaluated. The method was linear over the range of 10-1000 ng/mL for zolpidem (R2 >0.9991) with repeatability (%RSD) between 0.3 % and 7.3 % (n = 3). The limits of detection and quantitation were 3 and 10 ng/mL, respectively. The sensitivity of HPLC-UV for the determination of zolpidem was enhanced by electromembrane extraction. Finally, the method was employed for the quantitation of zolpidem in biological samples with relative recoveries in the range of 60-79 %.
- Full Text:
- Date Issued: 2018
- Authors: Yaripour, Saeid , Mohammadi, Ali , Esfanjani, Isa , Walker, Roderick B , Nojavan, Saeed
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/184723 , vital:44266 , xlink:href="http://dx.doi.org/10.17179/excli2018-1140"
- Description: In this study, for the first time, an electro-driven microextraction method named electromembrane extraction combined with a simple high performance liquid chromatography and ultraviolet detection was developed and validated for the quantitation of zolpidem in biological samples. Parameters influencing electromembrane extraction were evaluated and optimized. The membrane consisted of 2-ethylhexanol immobilized in the pores of a hollow fiber. As a driving force, a 150 V electric field was applied to facilitate the analyte migration from the sample matrix to an acceptor solution through a supported liquid membrane. The pHs of donor and acceptor solutions were optimized to 6.0 and 2.0, respectively. The enrichment factor was obtained >75 within 15 minutes. The effect of carbon nanotubes (as solid nano-sorbents) on the membrane performance and EME efficiency was evaluated. The method was linear over the range of 10-1000 ng/mL for zolpidem (R2 >0.9991) with repeatability (%RSD) between 0.3 % and 7.3 % (n = 3). The limits of detection and quantitation were 3 and 10 ng/mL, respectively. The sensitivity of HPLC-UV for the determination of zolpidem was enhanced by electromembrane extraction. Finally, the method was employed for the quantitation of zolpidem in biological samples with relative recoveries in the range of 60-79 %.
- Full Text:
- Date Issued: 2018
Local peoples’ knowledge and perceptions of Australian wattle (Acacia) species invasion, ecosystem services and disservices in grassland landscapes, South Africa
- Yapi, Thozamile S, Shackleton, Charlie M, Le Maitre, David C, Dziba, Luthando E
- Authors: Yapi, Thozamile S , Shackleton, Charlie M , Le Maitre, David C , Dziba, Luthando E
- Date: 2023
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/399791 , vital:69559 , xlink:href="https://doi.org/10.1080/26395916.2023.2177495"
- Description: Many alien tree species were introduced into grassland ecosystems in South Africa by the commercial forestry industry for paper and timber for furniture. Over decades some of these introduced species escaped into neighbouring farms and community land. Adult trees from these alien species now provide other ecosystem services, notably fuelwood. Depending on the spatio-temporal context, many of these species can also negatively affect ecosystem services. We collected interview data from commercial and communal farmers in the upper Umzimvubu catchment in South Africa to compare farmers’ knowledge and perceptions of invasive wattle species invasion and their associated ecosystem services and disservices. Fuelwood and fencing poles were the most common uses of wattle by commercial (83%; 67%) and communal (99%; 49%) farmers. On the other hand, the reduction of grass cover and loss of grazing land were the most commonly mentioned negative impacts of wattles by commercial (83%; 75%) and communal (92%; 80%) farmers. Although both groups recognise the importance of wattles in providing ecosystem services, most communal farmers perceived wattles to have more negative effects than benefits. The findings demonstrate that both farmer groups highly depend on ecosystem services and are affected by disservices of wattles. However, while large-scale commercial households favour the presence of wattles in the landscape, communal households prefer complete removal of the wattles from the landscape. This may be due to lack of locally available alternative options or inability to replace or purchase ecosystem services affected by wattles from other sources or markets like commercial farmers.
- Full Text:
- Date Issued: 2023
- Authors: Yapi, Thozamile S , Shackleton, Charlie M , Le Maitre, David C , Dziba, Luthando E
- Date: 2023
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/399791 , vital:69559 , xlink:href="https://doi.org/10.1080/26395916.2023.2177495"
- Description: Many alien tree species were introduced into grassland ecosystems in South Africa by the commercial forestry industry for paper and timber for furniture. Over decades some of these introduced species escaped into neighbouring farms and community land. Adult trees from these alien species now provide other ecosystem services, notably fuelwood. Depending on the spatio-temporal context, many of these species can also negatively affect ecosystem services. We collected interview data from commercial and communal farmers in the upper Umzimvubu catchment in South Africa to compare farmers’ knowledge and perceptions of invasive wattle species invasion and their associated ecosystem services and disservices. Fuelwood and fencing poles were the most common uses of wattle by commercial (83%; 67%) and communal (99%; 49%) farmers. On the other hand, the reduction of grass cover and loss of grazing land were the most commonly mentioned negative impacts of wattles by commercial (83%; 75%) and communal (92%; 80%) farmers. Although both groups recognise the importance of wattles in providing ecosystem services, most communal farmers perceived wattles to have more negative effects than benefits. The findings demonstrate that both farmer groups highly depend on ecosystem services and are affected by disservices of wattles. However, while large-scale commercial households favour the presence of wattles in the landscape, communal households prefer complete removal of the wattles from the landscape. This may be due to lack of locally available alternative options or inability to replace or purchase ecosystem services affected by wattles from other sources or markets like commercial farmers.
- Full Text:
- Date Issued: 2023
A content analysis of public academic literature that explores the relationship between gang membership and identity in South African prisons, focusing on group processes
- Yantolo, Siphosethu https://orcid.org/0000-0002-3011-3458
- Authors: Yantolo, Siphosethu https://orcid.org/0000-0002-3011-3458
- Date: 2022-09
- Subjects: Gang members -- South Africa , Prison gangs -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/27253 , vital:66485
- Description: Prison gangs are currently prevalent in South African correctional facilities, and they have a devastating impact on the lives of many young men in South African jails and society (Nel, 2017). The purpose of this study was to examine scholarly literature on the topic of gang membership and its link with identity in South African prisons, with a focus on group processes. This study examined published academic literature and analyzed it using a mixed-method approach that included content analysis. The literature was examined using keywords, theoretical background, article kinds, participant gender, participant age, and author affiliation. Furthermore, themes were developed by qualitatively assessing the problem statements of the associated papers and identifying their consequences. Most of the research on gang membership and identification in jail focused on prison gang members and, to a lesser extent, non-gang members, with minimal focus on correctional services authorities. The findings on author affiliation revealed that most of the authors were linked with South African universities. The qualitative findings of this study revealed that Rule Violation, Power and Status, and the Need for Belonging are the most dominating themes relating to group processes and have a substantial influence on prison gang membership. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2022
- Full Text:
- Date Issued: 2022-09
- Authors: Yantolo, Siphosethu https://orcid.org/0000-0002-3011-3458
- Date: 2022-09
- Subjects: Gang members -- South Africa , Prison gangs -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/27253 , vital:66485
- Description: Prison gangs are currently prevalent in South African correctional facilities, and they have a devastating impact on the lives of many young men in South African jails and society (Nel, 2017). The purpose of this study was to examine scholarly literature on the topic of gang membership and its link with identity in South African prisons, with a focus on group processes. This study examined published academic literature and analyzed it using a mixed-method approach that included content analysis. The literature was examined using keywords, theoretical background, article kinds, participant gender, participant age, and author affiliation. Furthermore, themes were developed by qualitatively assessing the problem statements of the associated papers and identifying their consequences. Most of the research on gang membership and identification in jail focused on prison gang members and, to a lesser extent, non-gang members, with minimal focus on correctional services authorities. The findings on author affiliation revealed that most of the authors were linked with South African universities. The qualitative findings of this study revealed that Rule Violation, Power and Status, and the Need for Belonging are the most dominating themes relating to group processes and have a substantial influence on prison gang membership. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2022
- Full Text:
- Date Issued: 2022-09
Ubomi Sisilonda: Ingqokelela Yemibongo
- Authors: Yanta, Luvuyo Mkhululi
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , Xhosa poetry 21st century , Diaries -- Authorship , South African poetry (English) History and criticism , Xhosa poetry History and criticism , Poetry Therapeutic use
- Language: Xhosa , English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192364 , vital:45219
- Description: Esi siqingatha sethisisi yingqokelela yemibongo-ngoma eyilwe ngeenjongo zokuzama ukuveza nokupholisa isilonda esidalwe ziimeko zobom esiphila kubo singabantu, izinto endizibonileyo nendidlule kuzo. Ndibhala ndibonakalisa ubumnyama endiphile kubo, apha ndizama ukusondela ekukhanyeni. Ndiqala ngokupholisa ezam izilonda kuqala. Ulwimi endilusebenzisayo lulanda imbali yam njengomfana omnyama okhulele elokishini, ilokishi nganye inolwimi lwayo. Ndisebenzisa olu lwimi ndibalisa indlela endikhule ngayo, ndikwakhankanya nokukhula ndiqheliswa ukungathethi ngezinto nokungawavezi amanxeba entliziyo yam phambi kwabantu “ilayithi ayikhali.” Ndinomdla kubabhali ababhala ngeemeko zexesha lanamhlanje, kwiimeko eziphilwa luninzi lwabantu nesimo sentlalo jikelele. Ndisebenzise umsebenzi wababhali abafana noAyanda Billie ukujonga isingqi sobom kwimibongo yakhe njengomntu ongekho kude ngokuhlala nokufuphi ngeminyaka, ndiqwalasele imisebenzi kaS. Zotwana ukuzama ukusondeza isigama kwindlela endikhule ngayo kunye noJ.J.R Jolobe ukuqwalasela ukuba babesebenzisa obuphi ubuchule bokubhala nokupholisa izilonda zabo. Ndikwacaphule kwisimbo sokubhala esikhawulezileyo semibhalo eyenzelwe iqonga njengoko ndichithe ixesha elininzi ndidlala kwaye ndikwaqeqesha abadlali beqonga. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Yanta, Luvuyo Mkhululi
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , Xhosa poetry 21st century , Diaries -- Authorship , South African poetry (English) History and criticism , Xhosa poetry History and criticism , Poetry Therapeutic use
- Language: Xhosa , English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/192364 , vital:45219
- Description: Esi siqingatha sethisisi yingqokelela yemibongo-ngoma eyilwe ngeenjongo zokuzama ukuveza nokupholisa isilonda esidalwe ziimeko zobom esiphila kubo singabantu, izinto endizibonileyo nendidlule kuzo. Ndibhala ndibonakalisa ubumnyama endiphile kubo, apha ndizama ukusondela ekukhanyeni. Ndiqala ngokupholisa ezam izilonda kuqala. Ulwimi endilusebenzisayo lulanda imbali yam njengomfana omnyama okhulele elokishini, ilokishi nganye inolwimi lwayo. Ndisebenzisa olu lwimi ndibalisa indlela endikhule ngayo, ndikwakhankanya nokukhula ndiqheliswa ukungathethi ngezinto nokungawavezi amanxeba entliziyo yam phambi kwabantu “ilayithi ayikhali.” Ndinomdla kubabhali ababhala ngeemeko zexesha lanamhlanje, kwiimeko eziphilwa luninzi lwabantu nesimo sentlalo jikelele. Ndisebenzise umsebenzi wababhali abafana noAyanda Billie ukujonga isingqi sobom kwimibongo yakhe njengomntu ongekho kude ngokuhlala nokufuphi ngeminyaka, ndiqwalasele imisebenzi kaS. Zotwana ukuzama ukusondeza isigama kwindlela endikhule ngayo kunye noJ.J.R Jolobe ukuqwalasela ukuba babesebenzisa obuphi ubuchule bokubhala nokupholisa izilonda zabo. Ndikwacaphule kwisimbo sokubhala esikhawulezileyo semibhalo eyenzelwe iqonga njengoko ndichithe ixesha elininzi ndidlala kwaye ndikwaqeqesha abadlali beqonga. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29