Wildlife-vehicle collisions mitigation measures using road ecological data and deep learning
- Authors: Nandutu, Irene
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/431907 , vital:72814
- Description: Access restricted. Expected release in 2025. , Thesis (PhD) -- Faculty of Science, Mathematics, 2023
- Full Text:
- Date Issued: 2023-10-13
- Authors: Nandutu, Irene
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/431907 , vital:72814
- Description: Access restricted. Expected release in 2025. , Thesis (PhD) -- Faculty of Science, Mathematics, 2023
- Full Text:
- Date Issued: 2023-10-13
With dreams in our hands: Towards transgressive knowledge-making cultures
- Authors: Knowles, Corinne Ruth
- Date: 2023-10-13
- Subjects: African feminism , Pedagogy , Political sociology , Knowledge, Theory of Political aspects , Transformative learning
- Language: English
- Type: Academic theses , Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/402955 , vital:69909 , DOI 10.21504/10962/402955
- Description: Knowledge-making in universities is not neutral and takes different forms. This thesis critically examines the politics of knowledge to propose and present a transgressive schema for knowledge-making that is co-created with students. It emerges from teaching and learning encounters in the Humanities Extended Studies (ES) Programme at Rhodes University, where for the past decade we have experimented with different ways of knowledge-making that run counter to conventional pedagogic practices. We set up a project for the thesis that allowed us to work with knowledge in ways that are Afrocentric, and that hold and nurture our dreams. The theory and methodology of the project are explained in the first academic paper for this PhD by publication. The project and its derivatives use an African Feminist framing, and centre the ontoepistemologies of African young people who find themselves alienated and marginalised by a western bias in university curricula. Former ES student volunteers came up with topics, responded to them, reviewed each other’s work, and co-wrote two academic papers that demonstrate a praxis of African Feminist research and pedagogic principles. Two further projects practise the principles that emerge from the primary project, and together they have tested knowledge-making cultures that inspire critical thinking and creative humanity. These are explained in two further academic papers. One is co-written with the copresenter of an online inter-continental short course for PhD students on African Feminist Research Methodology. The other is single authored, and introduces the third project, a Political and International Studies third-year course on African Feminist theory. The schema for knowledge-making uses the hand, which holds our dream, as a descriptive metaphor. Each of the five fingers of the hand represents an aspect of how we have collaborated on the projects and in lecture rooms, and what this has taught us about how to nurture and inspire the dreams of young African people through transgressive knowledgemaking cultures. The five aspects – framing, activating, seeing, creating, imagining – are mutually constitutive elements of knowledge-making that are introduced throughout the thesis, and explained in careful detail in the conclusion as a synthesis of the collaborations. , Siphethe amaphupha ezandleni zethu: ukwenza iinckubeko zolwazi ezigxile ekuphazamiseni isiqhelo Isishwankathelo Ukwenziwa kolwazi kwiiunivesithi asiyonto engathathi cala kwaye yenzeka ngeendlelangeendlela. Le thisisi iphonononga ipolitiki yolwazi ngenjongo yokucebisa nokuvelisa iindlela zokwenziwa kolwazi ezigxile ekuphazamiseni kwesiqhelo, ndlela leyo eyenziwa ngentsebenziswano nabafundi. Le Ndlela yokuphazamisa isiqhelo ivela kwindlela zokufunda nokufundisa kwinkqubo yeExtended Studies kwiUnivesithi iRhodes, apho kwiminyaka elishumi edlulileyo besisebenzisa amalinge ohlukileyo okwenza ulwazi ohlukileyo kwindlela zokufunda eziqhelekileyo. Siqulunqe inkqubo yale thisisi evumele ukuba sisebenze nolwazi ngendlela ekhokhelelisa ubuAfrika phambile, nkqubo leyo eyondla nebamba amaphupha ethu. Inkcazo-bungcali neendlela zokwenza uphando lwalo msebenzi zicacisiwe kwiphepha lokuqala lethisisi yePhD ezakupapashwa. Lo msebenzi neminye imisebenzi efana nawo isebenzisa iAfrikan Feminism ngenjongo yokubeka ngokusesikweni ndlela le ingxile kwindlela yokufundisa neengcambu zayo ezizinze eAfrika, kwaye ikhokhelisa imfundo yabantu abatsha abazifumana besenziwe amakheswa nabahlelelekileyo kunyenjwa kwasentshona kwizifundo zaseunivesithi. Abafundi ababefunda kwiES baze nezihloko, yangabo abaziphendulayo, bahlola imisebenzi yoogxa babo, kwaye bancedisa ekubhaleni amaphepha amabini abonakalisa indlela yokuphanda kusetyenziswa iziseko zokufunda zeAfrikan Feminism. Eminye imisebenzi isebenzise iziseko eziphuma kulo msebenzi wokuqala, kwaye yomibini le misebenzi iphonononga iinkcubeko zokwenza ulwazi ezikhuthaza ukuzikisa ukucinga nobuntu obunobuchule. Oku kucaciswa nzulu kumaphepha amabini. Omnye ubhalwe nomfundi kunye nombhali obefundisa kwikhosi emfutshane ebikwi-intanethi ephakathi kwamazwekazi eyenzelwe abafundi be- PhD kwiAfrican Feminist Research Methodology. Omnye umsebenzi ubhalwe ngumntu omnye, nothi wazise umsebenzi wesithathu, ikhosi yonyaka wesithathu yePolitical and International Studies yenkcazo-bungcali iAfrican Feminism. Icebo lokwenza ulwazi lisebenzisa isandla esibambe amaphupha ethu, njengesafobe esinika inkcazelo. Umnwe ngamnye umele indlela esisebenzisene ngayo kule misebenzi nakumagumbi okufundela, kunye nesikufundileyo ngokukhulisa nokukhuthaza amaphupha wabantu abasebatsha baseAfrika ngokusebenzisa imisebenzi egxile kwiinkcubeko zolwazi eziphazamisa ukwenziwa kolwazi ngendlela eqhelekileyo. Imiba emihlanu- ukwenza isakhelo, ukuqalisa, ukubona, ukudala, ukusebenzisa imifanekiso ntelekelelo- iyingqokelela yenxalenye yokwenza ulwazi ngendlela enentsebenziswano kwaye ezi ziseko zaziswa banzi kwithisisi, kwaye zicaciswe gabalala kwisishwankathelo njengengqokelela yentsebenziswano kulo msebenzi. , Thesis (PhD) -- Faculty of Education, Education, 2023
- Full Text:
- Date Issued: 2023-10-13
- Authors: Knowles, Corinne Ruth
- Date: 2023-10-13
- Subjects: African feminism , Pedagogy , Political sociology , Knowledge, Theory of Political aspects , Transformative learning
- Language: English
- Type: Academic theses , Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/402955 , vital:69909 , DOI 10.21504/10962/402955
- Description: Knowledge-making in universities is not neutral and takes different forms. This thesis critically examines the politics of knowledge to propose and present a transgressive schema for knowledge-making that is co-created with students. It emerges from teaching and learning encounters in the Humanities Extended Studies (ES) Programme at Rhodes University, where for the past decade we have experimented with different ways of knowledge-making that run counter to conventional pedagogic practices. We set up a project for the thesis that allowed us to work with knowledge in ways that are Afrocentric, and that hold and nurture our dreams. The theory and methodology of the project are explained in the first academic paper for this PhD by publication. The project and its derivatives use an African Feminist framing, and centre the ontoepistemologies of African young people who find themselves alienated and marginalised by a western bias in university curricula. Former ES student volunteers came up with topics, responded to them, reviewed each other’s work, and co-wrote two academic papers that demonstrate a praxis of African Feminist research and pedagogic principles. Two further projects practise the principles that emerge from the primary project, and together they have tested knowledge-making cultures that inspire critical thinking and creative humanity. These are explained in two further academic papers. One is co-written with the copresenter of an online inter-continental short course for PhD students on African Feminist Research Methodology. The other is single authored, and introduces the third project, a Political and International Studies third-year course on African Feminist theory. The schema for knowledge-making uses the hand, which holds our dream, as a descriptive metaphor. Each of the five fingers of the hand represents an aspect of how we have collaborated on the projects and in lecture rooms, and what this has taught us about how to nurture and inspire the dreams of young African people through transgressive knowledgemaking cultures. The five aspects – framing, activating, seeing, creating, imagining – are mutually constitutive elements of knowledge-making that are introduced throughout the thesis, and explained in careful detail in the conclusion as a synthesis of the collaborations. , Siphethe amaphupha ezandleni zethu: ukwenza iinckubeko zolwazi ezigxile ekuphazamiseni isiqhelo Isishwankathelo Ukwenziwa kolwazi kwiiunivesithi asiyonto engathathi cala kwaye yenzeka ngeendlelangeendlela. Le thisisi iphonononga ipolitiki yolwazi ngenjongo yokucebisa nokuvelisa iindlela zokwenziwa kolwazi ezigxile ekuphazamiseni kwesiqhelo, ndlela leyo eyenziwa ngentsebenziswano nabafundi. Le Ndlela yokuphazamisa isiqhelo ivela kwindlela zokufunda nokufundisa kwinkqubo yeExtended Studies kwiUnivesithi iRhodes, apho kwiminyaka elishumi edlulileyo besisebenzisa amalinge ohlukileyo okwenza ulwazi ohlukileyo kwindlela zokufunda eziqhelekileyo. Siqulunqe inkqubo yale thisisi evumele ukuba sisebenze nolwazi ngendlela ekhokhelelisa ubuAfrika phambile, nkqubo leyo eyondla nebamba amaphupha ethu. Inkcazo-bungcali neendlela zokwenza uphando lwalo msebenzi zicacisiwe kwiphepha lokuqala lethisisi yePhD ezakupapashwa. Lo msebenzi neminye imisebenzi efana nawo isebenzisa iAfrikan Feminism ngenjongo yokubeka ngokusesikweni ndlela le ingxile kwindlela yokufundisa neengcambu zayo ezizinze eAfrika, kwaye ikhokhelisa imfundo yabantu abatsha abazifumana besenziwe amakheswa nabahlelelekileyo kunyenjwa kwasentshona kwizifundo zaseunivesithi. Abafundi ababefunda kwiES baze nezihloko, yangabo abaziphendulayo, bahlola imisebenzi yoogxa babo, kwaye bancedisa ekubhaleni amaphepha amabini abonakalisa indlela yokuphanda kusetyenziswa iziseko zokufunda zeAfrikan Feminism. Eminye imisebenzi isebenzise iziseko eziphuma kulo msebenzi wokuqala, kwaye yomibini le misebenzi iphonononga iinkcubeko zokwenza ulwazi ezikhuthaza ukuzikisa ukucinga nobuntu obunobuchule. Oku kucaciswa nzulu kumaphepha amabini. Omnye ubhalwe nomfundi kunye nombhali obefundisa kwikhosi emfutshane ebikwi-intanethi ephakathi kwamazwekazi eyenzelwe abafundi be- PhD kwiAfrican Feminist Research Methodology. Omnye umsebenzi ubhalwe ngumntu omnye, nothi wazise umsebenzi wesithathu, ikhosi yonyaka wesithathu yePolitical and International Studies yenkcazo-bungcali iAfrican Feminism. Icebo lokwenza ulwazi lisebenzisa isandla esibambe amaphupha ethu, njengesafobe esinika inkcazelo. Umnwe ngamnye umele indlela esisebenzisene ngayo kule misebenzi nakumagumbi okufundela, kunye nesikufundileyo ngokukhulisa nokukhuthaza amaphupha wabantu abasebatsha baseAfrika ngokusebenzisa imisebenzi egxile kwiinkcubeko zolwazi eziphazamisa ukwenziwa kolwazi ngendlela eqhelekileyo. Imiba emihlanu- ukwenza isakhelo, ukuqalisa, ukubona, ukudala, ukusebenzisa imifanekiso ntelekelelo- iyingqokelela yenxalenye yokwenza ulwazi ngendlela enentsebenziswano kwaye ezi ziseko zaziswa banzi kwithisisi, kwaye zicaciswe gabalala kwisishwankathelo njengengqokelela yentsebenziswano kulo msebenzi. , Thesis (PhD) -- Faculty of Education, Education, 2023
- Full Text:
- Date Issued: 2023-10-13
“How do you feel about the abortion?”: pre-termination of pregnancy counselling in the public health sector in the Eastern Cape
- Authors: Du Toit, Ryan Rudolph
- Date: 2023-10-13
- Subjects: Abortion counseling South Africa Eastern Cape , Conversation analysis , Discursive psychology , Public health South Africa , Reproductive justice , Abortion Psychological aspects
- Language: English
- Type: Academic theses , Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/437238 , vital:73355 , DOI 10.21504/10962/437239
- Description: Pre-abortion counselling, as an aspect of abortion provision, has received growing research interest in various contexts. Much of the research has primarily focused on whether abortion counselling takes place, the experiences of women and/or counsellors (usually through retrospective interviews and surveys), and the content discussed during the counselling session (often policy regulated). Such research has proven vital to addressing the various reproductive issues facing women seeking an abortion worldwide. However, little research has focused on how pre-abortion counselling as an everyday institutional practice is conducted at a conversational level in the medical setting. By drawing on both conversation analysis and discursive psychology, this study explored how pre-abortion counselling was conducted in the public health sector in South Africa. The study involved recording the conversation during pre-abortion counselling and analysing it in terms of its content, in particular, the discourses drawn on by all parties involved, and its structure and delivery. The data were collected from three public hospitals in the Eastern Cape of South Africa and involved the audio recording of pre-abortion counselling sessions as part of abortion services. In total, 28 counselling sessions were recorded: 21 were individual sessions, and 7 were group counselling sessions. At two of the sites, counselling was conducted by registered midwives who worked at the hospital. At one site, an external Christian organisation volunteered trained counsellors to counsel women at the hospital free of charge. Using conversation analysis, counselling sessions were analysed in terms of the main projects. Seven key projects were identified: (1) Context setting, (2) History taking, (3) Establishing reason for abortion, (4) Presenting options, (5) Providing procedural information, (6) Obtaining verbal informed consent, and (7) Discussion of family planning. Each project is explored in terms of what discourses and subject positions featured when speakers were orienting to a specific project. This process highlighted how the conversational projects and their respective goals enable the deployment of certain problematic discourses and interactive/reflexive positionings. Discourse analysis revealed a clustering of discourses around two central themes. In the first clustering, the discourses were primarily used to discuss the (1) medically related issues underpinning the abortion procedure [medical discourse, responsibilization discourse, risk discourse, and discourse of support]. Talk using these discourses positioned women as patients needing medical intervention, responsibilised women for conceiving, playing an active role in their termination, and navigating all the psychological and physical risks “associated” with abortion. The discourse of support illustrates how support was spoken about in the interaction whereby patients were constructed as subjects who required support and nurses/counsellors as the ones who offered the support. In the second clustering, the discourses (2) focused on women and the foetus. These discourses [reproductive choice, religious, pronatalist, and foetal personhood discourses] positioned women as being responsible for making a choice regarding their pregnancy and the consequences that may result. In addition, a religious discourse coupled with a pronatalist discourse was used to construct the pregnancy and motherhood as desirable and part of “God’s plan”, whereas the foetus was spoken about as a “gift from God”. The foetal personhood discourse was used to construct the foetus as a living and functional human. This research provides evidence of how abortion counselling is problematic at various levels. At a practical level, there is a lack of standardisation in the delivery of abortion counselling (e.g., variation in key projects, where the counselling is mandated, time taken, nurse/counsellor training, content and format – group vs. individual counselling). At a discursive level, the use of certain discourses works to render the counselling directive through : (1) awfulizing abortion by providing misinformation about the abortion procedure, foetus and post-abortion psychological distress, (2) chastising and responsibilising women for conceiving, (3) constructing abortion as immoral, the ending of life and not in line with God’s plan, (4) constructing parenthood as the preferred choice, (5) delegitimising abortion as a resolution for pregnancy when compared to the other options (e.g., parenting or adoption), and finally (6) providing counselling that does not take into account the broader socio-political contexts. Recommendations for future research are put forward, and a call to move to a reparative justice framework is made by highlighting how it can be used to identify and understand reproductive injustices as they occur along four intersecting dimensions: (1) Individual material, (2) Collective material, (3) Individual symbolic, and (4) Collective symbolic. , Thesis (PhD) -- Faculty of Humanities, Psychology, 2023
- Full Text:
- Date Issued: 2023-10-13
- Authors: Du Toit, Ryan Rudolph
- Date: 2023-10-13
- Subjects: Abortion counseling South Africa Eastern Cape , Conversation analysis , Discursive psychology , Public health South Africa , Reproductive justice , Abortion Psychological aspects
- Language: English
- Type: Academic theses , Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/437238 , vital:73355 , DOI 10.21504/10962/437239
- Description: Pre-abortion counselling, as an aspect of abortion provision, has received growing research interest in various contexts. Much of the research has primarily focused on whether abortion counselling takes place, the experiences of women and/or counsellors (usually through retrospective interviews and surveys), and the content discussed during the counselling session (often policy regulated). Such research has proven vital to addressing the various reproductive issues facing women seeking an abortion worldwide. However, little research has focused on how pre-abortion counselling as an everyday institutional practice is conducted at a conversational level in the medical setting. By drawing on both conversation analysis and discursive psychology, this study explored how pre-abortion counselling was conducted in the public health sector in South Africa. The study involved recording the conversation during pre-abortion counselling and analysing it in terms of its content, in particular, the discourses drawn on by all parties involved, and its structure and delivery. The data were collected from three public hospitals in the Eastern Cape of South Africa and involved the audio recording of pre-abortion counselling sessions as part of abortion services. In total, 28 counselling sessions were recorded: 21 were individual sessions, and 7 were group counselling sessions. At two of the sites, counselling was conducted by registered midwives who worked at the hospital. At one site, an external Christian organisation volunteered trained counsellors to counsel women at the hospital free of charge. Using conversation analysis, counselling sessions were analysed in terms of the main projects. Seven key projects were identified: (1) Context setting, (2) History taking, (3) Establishing reason for abortion, (4) Presenting options, (5) Providing procedural information, (6) Obtaining verbal informed consent, and (7) Discussion of family planning. Each project is explored in terms of what discourses and subject positions featured when speakers were orienting to a specific project. This process highlighted how the conversational projects and their respective goals enable the deployment of certain problematic discourses and interactive/reflexive positionings. Discourse analysis revealed a clustering of discourses around two central themes. In the first clustering, the discourses were primarily used to discuss the (1) medically related issues underpinning the abortion procedure [medical discourse, responsibilization discourse, risk discourse, and discourse of support]. Talk using these discourses positioned women as patients needing medical intervention, responsibilised women for conceiving, playing an active role in their termination, and navigating all the psychological and physical risks “associated” with abortion. The discourse of support illustrates how support was spoken about in the interaction whereby patients were constructed as subjects who required support and nurses/counsellors as the ones who offered the support. In the second clustering, the discourses (2) focused on women and the foetus. These discourses [reproductive choice, religious, pronatalist, and foetal personhood discourses] positioned women as being responsible for making a choice regarding their pregnancy and the consequences that may result. In addition, a religious discourse coupled with a pronatalist discourse was used to construct the pregnancy and motherhood as desirable and part of “God’s plan”, whereas the foetus was spoken about as a “gift from God”. The foetal personhood discourse was used to construct the foetus as a living and functional human. This research provides evidence of how abortion counselling is problematic at various levels. At a practical level, there is a lack of standardisation in the delivery of abortion counselling (e.g., variation in key projects, where the counselling is mandated, time taken, nurse/counsellor training, content and format – group vs. individual counselling). At a discursive level, the use of certain discourses works to render the counselling directive through : (1) awfulizing abortion by providing misinformation about the abortion procedure, foetus and post-abortion psychological distress, (2) chastising and responsibilising women for conceiving, (3) constructing abortion as immoral, the ending of life and not in line with God’s plan, (4) constructing parenthood as the preferred choice, (5) delegitimising abortion as a resolution for pregnancy when compared to the other options (e.g., parenting or adoption), and finally (6) providing counselling that does not take into account the broader socio-political contexts. Recommendations for future research are put forward, and a call to move to a reparative justice framework is made by highlighting how it can be used to identify and understand reproductive injustices as they occur along four intersecting dimensions: (1) Individual material, (2) Collective material, (3) Individual symbolic, and (4) Collective symbolic. , Thesis (PhD) -- Faculty of Humanities, Psychology, 2023
- Full Text:
- Date Issued: 2023-10-13
Housing market dynamics and economic growth in South Africa (1994 – 2019)
- Authors: Muchaonyerwa, Forward
- Date: 2023-09
- Subjects: Economic development -- South Africa , Housing -- Prices -- South Africa , Housing forecasting -- South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28628 , vital:74477
- Description: The housing market contributes significantly to economic growth. On this background, the study examined South Africa’s housing market dynamics, particularly determinants of demand, supply, and formal housing prices. Furthermore, the study looked at the impact of housing prices on economic growth from 1994:Q1 to 2019:Q2. The study period is important as it covers the new political dispensation in South Africa where the country entered a new democracy in 1994. The first three objectives of the study were to identify the determinants of housing demand, supply, and prices. The theory of demand and supply provided the theoretical framework for these models. Estimation of the housing demand, supply and price models was done by the employing Seemingly Unrelated Regression (SUR) technique. The Three Stage Least Squares (3SLS) model was estimated for robustness. Findings from SUR and 3SLS confirmed that Housing Demand (HD) is negatively and significantly influenced by residential Building Costs per Square Meter (BCSM), Housing Supply (HS) and Financial Costs (FC); and positively influenced by House Prices (HP). In addition, HS is negatively affected by BCSM, HD, Production Costs (PC) and Urban Population (UP); and positively influenced by HP and Residential Construction Confidence (RC). Lastly, HP are negatively affected by Prime Overdraft Rate (POR) and RC; and positively influenced by BCSM, HS, HD, Coincident Business Cycle Indicator (CBC) and residential Valuation (VAL). The fourth objective was to examine the impact of house prices on economic growth. An economic model was specified with Gross Domestic Product (GDP) as its dependent variable. The new growth theory provided the theoretical framework for this model. The Johansen co-integration technique confirmed a long run-term relationship between economic growth and house prices. The Vector Error Correction Model (VECM) was estimated to analyze the long and short run relationship among the variables. Empirical results confirmed that house prices have a positive impact on economic growth. Results further confirmed that CBC and Unemployment Rate (UR) are also positively related to GDP. POR and Leading Business Cycle indicator (LEBC) are negatively related to GDP. Granger Causality test was performed to analyze the causality between house prices and economic growth. The results indicated that there is a long run unidirectional causality from house prices to economic growth. With these results, the study recommends policy formation emanating from continuous research by establishing a human settlement agency or task team. The team can establish procedures for data collection and maintain a database for all kinds of housing market data. Their mandate includes research on commissioning of new towns and/or cities to boost housing supply. The government should avail more land and relax restrictive regulations and minimize red tape to ensure that houses are supplied to meet the growing demand as well as to stabilize prices. Policies to promote confidence and stabilize building costs are needed. These variables indicated significant influence on housing dynamics. It is also recommended to incentivize households to participate on the mortgage market. This assist both households through the wealth effect which positively influence increase in economic activity in South Africa. , Thesis (DCom) -- Faculty of Management and Commerce, 2023
- Full Text:
- Date Issued: 2023-09
- Authors: Muchaonyerwa, Forward
- Date: 2023-09
- Subjects: Economic development -- South Africa , Housing -- Prices -- South Africa , Housing forecasting -- South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28628 , vital:74477
- Description: The housing market contributes significantly to economic growth. On this background, the study examined South Africa’s housing market dynamics, particularly determinants of demand, supply, and formal housing prices. Furthermore, the study looked at the impact of housing prices on economic growth from 1994:Q1 to 2019:Q2. The study period is important as it covers the new political dispensation in South Africa where the country entered a new democracy in 1994. The first three objectives of the study were to identify the determinants of housing demand, supply, and prices. The theory of demand and supply provided the theoretical framework for these models. Estimation of the housing demand, supply and price models was done by the employing Seemingly Unrelated Regression (SUR) technique. The Three Stage Least Squares (3SLS) model was estimated for robustness. Findings from SUR and 3SLS confirmed that Housing Demand (HD) is negatively and significantly influenced by residential Building Costs per Square Meter (BCSM), Housing Supply (HS) and Financial Costs (FC); and positively influenced by House Prices (HP). In addition, HS is negatively affected by BCSM, HD, Production Costs (PC) and Urban Population (UP); and positively influenced by HP and Residential Construction Confidence (RC). Lastly, HP are negatively affected by Prime Overdraft Rate (POR) and RC; and positively influenced by BCSM, HS, HD, Coincident Business Cycle Indicator (CBC) and residential Valuation (VAL). The fourth objective was to examine the impact of house prices on economic growth. An economic model was specified with Gross Domestic Product (GDP) as its dependent variable. The new growth theory provided the theoretical framework for this model. The Johansen co-integration technique confirmed a long run-term relationship between economic growth and house prices. The Vector Error Correction Model (VECM) was estimated to analyze the long and short run relationship among the variables. Empirical results confirmed that house prices have a positive impact on economic growth. Results further confirmed that CBC and Unemployment Rate (UR) are also positively related to GDP. POR and Leading Business Cycle indicator (LEBC) are negatively related to GDP. Granger Causality test was performed to analyze the causality between house prices and economic growth. The results indicated that there is a long run unidirectional causality from house prices to economic growth. With these results, the study recommends policy formation emanating from continuous research by establishing a human settlement agency or task team. The team can establish procedures for data collection and maintain a database for all kinds of housing market data. Their mandate includes research on commissioning of new towns and/or cities to boost housing supply. The government should avail more land and relax restrictive regulations and minimize red tape to ensure that houses are supplied to meet the growing demand as well as to stabilize prices. Policies to promote confidence and stabilize building costs are needed. These variables indicated significant influence on housing dynamics. It is also recommended to incentivize households to participate on the mortgage market. This assist both households through the wealth effect which positively influence increase in economic activity in South Africa. , Thesis (DCom) -- Faculty of Management and Commerce, 2023
- Full Text:
- Date Issued: 2023-09
Human capital development and strategic plan alignment: a case of the Eastern Cape Department of Education
- Zindi, Beauty https://orcid.org/0000-0003-4790-5379
- Authors: Zindi, Beauty https://orcid.org/0000-0003-4790-5379
- Date: 2023-09
- Subjects: Human capital -- South Africa -- Eastern Cape , Strategic planning -- South Africa -- Eastern Cape
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28694 , vital:74500
- Description: Human capital development as an interactive process enhances and facilitates the development of skills, capabilities and potential of human capital through organisational development. Thus, to achieve goals and strategic plans effectively and efficiently, the public sector must continuously upskill the knowledge and capacity of its human capital. The dearth in skills and capacity, often result in sub-optimal performance in the Eastern Cape Department of Education (ECDoE). To achieve key objectives in its strategic plan, the ECDoE must align its hhuman capital development needs with its strategic plan. The main objective of this study is to explore the nature and extent of alignment between human capital development and the strategic plan of the ECDoE. The sub-objectives of the study are to: (i) establish a conceptual framework for informing human capital development and strategic plan alignment in theECDoE ; (ii) determine how continuous teacher development as a human capital development approach can be more closely aligned with the strategic priorities of the ECDoE’s strategic plan; (iii) explore how human capital development aligns with the strategic plan and Performance Development Management System (PDMS) of the ECDoE and (iv) recommend how the ECDoE can align its strategic human capital development to its strategic plan and performance management system. The study adopts a pragmatic research philosophy and a mixed- methods approach. The quantitative strategy and positivist paradigm were adopted to collect data, from purposefully two hundred and sixty-seven (n=267) educators using a survey questionnaire. The interpretivist research philosophy informed the qualitative strategy. In-depth interview data was collected from five (n=5) purposefully sampled information-rich participants to a point of data saturation. Quantitative data was analysed using descriptive and inferential statistics, while qualitative data was analysed using thematic analysis. Statistical results from survey data rejected hypothesis H10 and confirmed H11 which hypothesised that there was a relationship between eemployee performance and sstrategic plan alignment. Results further confirmed the relationship between employee performance and effectiveness of training alignment. Furthermore, results confirmed an association between employee performance and trainee evaluation. Results from qualitative data suggest that the ECDoE lacked competitive and effective skills human capital development training programmes, effective human resource development strategy as well as developmental capacity building training opportunities for educators. Such capacity dearth affected both educator and learner performance, leading to sub-optimal performance learner outcomes and academic achievement results. The ECDoE must therefore closely monitor and evaluate training programmes and assess their impact on educator performance. Training must be closely aligned with skills and capacity training needs of employees and must contribute to skills acquisition and job performance indicators, envisaged in the department’s strategic plan, mission and vision. Given the findings, the study recommends a framework for human capital development and strategic plan alignment in the public sector, particularly in the ECDoE. It concludes that continuous professional development must be a key performance driver for improving effectiveness and efficiency in strategic goal, vision and mission attainment. , Thesis (DPA) -- Faculty of Management and Commerce, 2023
- Full Text:
- Date Issued: 2023-09
- Authors: Zindi, Beauty https://orcid.org/0000-0003-4790-5379
- Date: 2023-09
- Subjects: Human capital -- South Africa -- Eastern Cape , Strategic planning -- South Africa -- Eastern Cape
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28694 , vital:74500
- Description: Human capital development as an interactive process enhances and facilitates the development of skills, capabilities and potential of human capital through organisational development. Thus, to achieve goals and strategic plans effectively and efficiently, the public sector must continuously upskill the knowledge and capacity of its human capital. The dearth in skills and capacity, often result in sub-optimal performance in the Eastern Cape Department of Education (ECDoE). To achieve key objectives in its strategic plan, the ECDoE must align its hhuman capital development needs with its strategic plan. The main objective of this study is to explore the nature and extent of alignment between human capital development and the strategic plan of the ECDoE. The sub-objectives of the study are to: (i) establish a conceptual framework for informing human capital development and strategic plan alignment in theECDoE ; (ii) determine how continuous teacher development as a human capital development approach can be more closely aligned with the strategic priorities of the ECDoE’s strategic plan; (iii) explore how human capital development aligns with the strategic plan and Performance Development Management System (PDMS) of the ECDoE and (iv) recommend how the ECDoE can align its strategic human capital development to its strategic plan and performance management system. The study adopts a pragmatic research philosophy and a mixed- methods approach. The quantitative strategy and positivist paradigm were adopted to collect data, from purposefully two hundred and sixty-seven (n=267) educators using a survey questionnaire. The interpretivist research philosophy informed the qualitative strategy. In-depth interview data was collected from five (n=5) purposefully sampled information-rich participants to a point of data saturation. Quantitative data was analysed using descriptive and inferential statistics, while qualitative data was analysed using thematic analysis. Statistical results from survey data rejected hypothesis H10 and confirmed H11 which hypothesised that there was a relationship between eemployee performance and sstrategic plan alignment. Results further confirmed the relationship between employee performance and effectiveness of training alignment. Furthermore, results confirmed an association between employee performance and trainee evaluation. Results from qualitative data suggest that the ECDoE lacked competitive and effective skills human capital development training programmes, effective human resource development strategy as well as developmental capacity building training opportunities for educators. Such capacity dearth affected both educator and learner performance, leading to sub-optimal performance learner outcomes and academic achievement results. The ECDoE must therefore closely monitor and evaluate training programmes and assess their impact on educator performance. Training must be closely aligned with skills and capacity training needs of employees and must contribute to skills acquisition and job performance indicators, envisaged in the department’s strategic plan, mission and vision. Given the findings, the study recommends a framework for human capital development and strategic plan alignment in the public sector, particularly in the ECDoE. It concludes that continuous professional development must be a key performance driver for improving effectiveness and efficiency in strategic goal, vision and mission attainment. , Thesis (DPA) -- Faculty of Management and Commerce, 2023
- Full Text:
- Date Issued: 2023-09
Pragmatic necessity for breaching Gricean maxims in fiction: Towards a literary plot theory
- Tserayi, Jonathan https://orcid.org/0000-0002-6200-8177
- Authors: Tserayi, Jonathan https://orcid.org/0000-0002-6200-8177
- Date: 2023-08
- Subjects: Indic fiction (English) , Maxims in literature
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28705 , vital:74555
- Description: Unlike in most literary studies involving the analysis of the Gricean Cooperative Principle, where the main thrust has been to expose where and how the Gricean maxims were violated, the focus in this study was to investigate the utility or functionality of breached maxims in fictional works. This novel approach, issuing from the presupposition that breached maxims add value to literature, warranted the speculation that it is necessary to breach Gricean maxims for the success of the literary plot. To prove such necessity, the researcher sampled three texts consisting of two novels and a play for in depth analysis. Using two theories (Relevance Theory (RT) and Pragma-crafting theory (PC), and methodologically applying Discourse Analysis (DA) and Conversation Analysis (CA), the researcher sought to establish the effect of breached maxims in the sampled texts. Furthermore, the researcher utilised both quantitative and qualitative methods, even though the former was minimally applied. As expected for a study of this nature, the analysis was largely qualitative. Findings confirmed that breached maxims have the effect of generating literary content and hence are purposefully used to achieve literary creativity and convenience. This affirms the necessity of expediently breaching the maxims in the interest of the literary plot. In this regard, literary works have traditionally thrived on breached Gricean maxims, but the act of violating maxims has hardly been viewed in a positive light. Thus, this research partly fills the gap of articulating the efficacy of breached maxims in literary works, and ultimately proposes a literary plot theory premised on the efficacy of breached maxims. , Thesis (PhD) -- Faculty of Social Sciences and Humanities, 2023
- Full Text:
- Date Issued: 2023-08
- Authors: Tserayi, Jonathan https://orcid.org/0000-0002-6200-8177
- Date: 2023-08
- Subjects: Indic fiction (English) , Maxims in literature
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28705 , vital:74555
- Description: Unlike in most literary studies involving the analysis of the Gricean Cooperative Principle, where the main thrust has been to expose where and how the Gricean maxims were violated, the focus in this study was to investigate the utility or functionality of breached maxims in fictional works. This novel approach, issuing from the presupposition that breached maxims add value to literature, warranted the speculation that it is necessary to breach Gricean maxims for the success of the literary plot. To prove such necessity, the researcher sampled three texts consisting of two novels and a play for in depth analysis. Using two theories (Relevance Theory (RT) and Pragma-crafting theory (PC), and methodologically applying Discourse Analysis (DA) and Conversation Analysis (CA), the researcher sought to establish the effect of breached maxims in the sampled texts. Furthermore, the researcher utilised both quantitative and qualitative methods, even though the former was minimally applied. As expected for a study of this nature, the analysis was largely qualitative. Findings confirmed that breached maxims have the effect of generating literary content and hence are purposefully used to achieve literary creativity and convenience. This affirms the necessity of expediently breaching the maxims in the interest of the literary plot. In this regard, literary works have traditionally thrived on breached Gricean maxims, but the act of violating maxims has hardly been viewed in a positive light. Thus, this research partly fills the gap of articulating the efficacy of breached maxims in literary works, and ultimately proposes a literary plot theory premised on the efficacy of breached maxims. , Thesis (PhD) -- Faculty of Social Sciences and Humanities, 2023
- Full Text:
- Date Issued: 2023-08
Gender and shifting urban property relations: the impacts of tenure upgrading on women’s access to land and housing in Mdantsane, South Africa
- Stofile, Zimkhitha Sphokazi https://orcid.org/0000-0002-1566-1376
- Authors: Stofile, Zimkhitha Sphokazi https://orcid.org/0000-0002-1566-1376
- Date: 2023-07
- Subjects: Women's shelters , Land tenure -- South Africa , Right to housing
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28717 , vital:74556
- Description: A detailed empirical focus on the social impacts of progressive land policy shifts on women in Africa remains limited, particularly when it comes to urban property rights. This study examined contemporary dynamics of gender and access to urban property in the context of South Africa’s post-apartheid radical policy changes that attempt to address primarily the historical exclusion of blacks from urban property rights and housing. The thesis adopted a gendered approach to the concept of ‘access’ as an overriding concept to analyse the impacts of land tenure upgrading on women’s access to urban land and housing in Mdantsane, South Africa’s second-largest township. This study also adopts a liberal feminist perspective, particularly egalitarian liberal feminism (emanating from the works of John Stuart Mill) to explore how the post-apartheid progressive institutional and legal reforms have influenced the autonomy and power of women to access urban property rights. Through this perspective, the study also draws on several key theoretical concepts to put together a conceptual schema – a framework – that provides enhanced understanding of gendered dimensions of access to urban landed property (in this case housing). In many developing countries, there has been a shift from indigenous land tenure systems to private land ownership. These shifts were caused by several factors, including population pressure, rising land income, urbanisation, and land grabbing. International organisations such as the World Bank, the United States Agency for International Development and Department for International Development have expanded their land tenure reform programmes in developing countries from the 1970s until the late 1990s. These have suggested individualised land rights (land titling) as a precondition for investment, economic progress, poverty alleviation, and a framework for secure, transparent, and enforceable property rights. Gender equity became a growing concern among donor institutions that promote and fund titling and registration programmes. Land titling was viewed as a solution to bring an end to gender inequalities in land ownership. In South Africa, the Upgrading of Land Tenure Rights Act 112 of 1991 (ULTRA) was enacted for upgrading and converting ownership of certain rights granted in respect of land. The study used a case study of women in sections of Mdantsane. Qualitative methods, mainly in-depth interviews and life histories enabled the researcher to obtain detailed personal accounts of the historical and contemporary struggles of black women in accessing land and property in South Africa’s urban peripheries. The findings demonstrate that tenure upgrading produced differential outcomes among women in Mdantsane, and some diverse meanings that women attach to their land and houses in the context of tenure upgrading in post-apartheid South Africa. While tenure upgrading has guaranteed non-eviction for most house occupants (including women), it resulted in eviction for others. Male occupants, who secretly and fraudulently acquired the title deeds for family houses, displaced some of their women relatives. The study also established that these displacements were mostly done by those men who were regarded as heirs to property in many of the urban households. As such, they took most decisions about the formal registration of family homes, thus weakening the rights and power of women over urban property. Among the dominant meanings attached to land after tenure upgrading, women in Mdantsane generally viewed the ownership of urban property – no matter how small – as a form of empowerment, socially and economically. This study also found that after tenure upgrading, other women lost access to the accommodation they rented for more than a decade, even though they qualified to become the owners. In some instances, the politicians fraudulently sold the houses, and the occupants were thus displaced. Poor housing administration by the municipal officials was one of the reasons most occupants lost access to housing. In general, the results indicate that post-apartheid, urban land laws and policies afforded women better access to land and housing. Furthermore, in several instances, titling afforded women equal ownership rights as men compared to other tenure systems. Nonetheless, the history of exclusion still negatively affects women’s access to land and housing. Even in cases where they are not excluded, women still face social, political, and cultural constraints in acquiring urban land. Such a finding indicates that, gender-sensitive land laws and policies do not automatically lead to positive outcomes for women in South Africa’s urban peripheries. Therefore, the struggle for equal property rights does not begin and end with gender-progressive laws. Urban land policy should also grapple with past and contemporary obstacles in the implementation of legislation. , Thesis (PhD) -- Faculty of Social Sciences and Humanities, 2023
- Full Text:
- Date Issued: 2023-07
- Authors: Stofile, Zimkhitha Sphokazi https://orcid.org/0000-0002-1566-1376
- Date: 2023-07
- Subjects: Women's shelters , Land tenure -- South Africa , Right to housing
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28717 , vital:74556
- Description: A detailed empirical focus on the social impacts of progressive land policy shifts on women in Africa remains limited, particularly when it comes to urban property rights. This study examined contemporary dynamics of gender and access to urban property in the context of South Africa’s post-apartheid radical policy changes that attempt to address primarily the historical exclusion of blacks from urban property rights and housing. The thesis adopted a gendered approach to the concept of ‘access’ as an overriding concept to analyse the impacts of land tenure upgrading on women’s access to urban land and housing in Mdantsane, South Africa’s second-largest township. This study also adopts a liberal feminist perspective, particularly egalitarian liberal feminism (emanating from the works of John Stuart Mill) to explore how the post-apartheid progressive institutional and legal reforms have influenced the autonomy and power of women to access urban property rights. Through this perspective, the study also draws on several key theoretical concepts to put together a conceptual schema – a framework – that provides enhanced understanding of gendered dimensions of access to urban landed property (in this case housing). In many developing countries, there has been a shift from indigenous land tenure systems to private land ownership. These shifts were caused by several factors, including population pressure, rising land income, urbanisation, and land grabbing. International organisations such as the World Bank, the United States Agency for International Development and Department for International Development have expanded their land tenure reform programmes in developing countries from the 1970s until the late 1990s. These have suggested individualised land rights (land titling) as a precondition for investment, economic progress, poverty alleviation, and a framework for secure, transparent, and enforceable property rights. Gender equity became a growing concern among donor institutions that promote and fund titling and registration programmes. Land titling was viewed as a solution to bring an end to gender inequalities in land ownership. In South Africa, the Upgrading of Land Tenure Rights Act 112 of 1991 (ULTRA) was enacted for upgrading and converting ownership of certain rights granted in respect of land. The study used a case study of women in sections of Mdantsane. Qualitative methods, mainly in-depth interviews and life histories enabled the researcher to obtain detailed personal accounts of the historical and contemporary struggles of black women in accessing land and property in South Africa’s urban peripheries. The findings demonstrate that tenure upgrading produced differential outcomes among women in Mdantsane, and some diverse meanings that women attach to their land and houses in the context of tenure upgrading in post-apartheid South Africa. While tenure upgrading has guaranteed non-eviction for most house occupants (including women), it resulted in eviction for others. Male occupants, who secretly and fraudulently acquired the title deeds for family houses, displaced some of their women relatives. The study also established that these displacements were mostly done by those men who were regarded as heirs to property in many of the urban households. As such, they took most decisions about the formal registration of family homes, thus weakening the rights and power of women over urban property. Among the dominant meanings attached to land after tenure upgrading, women in Mdantsane generally viewed the ownership of urban property – no matter how small – as a form of empowerment, socially and economically. This study also found that after tenure upgrading, other women lost access to the accommodation they rented for more than a decade, even though they qualified to become the owners. In some instances, the politicians fraudulently sold the houses, and the occupants were thus displaced. Poor housing administration by the municipal officials was one of the reasons most occupants lost access to housing. In general, the results indicate that post-apartheid, urban land laws and policies afforded women better access to land and housing. Furthermore, in several instances, titling afforded women equal ownership rights as men compared to other tenure systems. Nonetheless, the history of exclusion still negatively affects women’s access to land and housing. Even in cases where they are not excluded, women still face social, political, and cultural constraints in acquiring urban land. Such a finding indicates that, gender-sensitive land laws and policies do not automatically lead to positive outcomes for women in South Africa’s urban peripheries. Therefore, the struggle for equal property rights does not begin and end with gender-progressive laws. Urban land policy should also grapple with past and contemporary obstacles in the implementation of legislation. , Thesis (PhD) -- Faculty of Social Sciences and Humanities, 2023
- Full Text:
- Date Issued: 2023-07
The moderation and mediation influence of dynamic capabilities and decision-making dimensions on South African family business performance
- Pike-Bowles, Angela https://orcid.org/0000-0003-4811-0455
- Authors: Pike-Bowles, Angela https://orcid.org/0000-0003-4811-0455
- Date: 2023-07
- Subjects: Family-owned business enterprises -- South Africa -- Decision making , Family-owned business enterprises -- Succession -- South Africa , Management information systems
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28684 , vital:74499
- Description: Family businesses are fundamental for any world economy where they contribute significantly to economic prosperity. However, family firms are faced with new obstacles that are directly affecting their business performance due to the current economic uncertainties and the rapidly changing environments. The implementation of dynamic capabilities is a fundamental strategic tool family firms can exercise to improve their competitive advantage. Although family business research has proliferated over the last 10 years, there are few studies in South Africa investigating the extent to which dynamic capabilities influence family business performance. This study, therefore, had a primary objective to investigate the determinants of family business performance and the role that dynamic capabilities play as mediators and moderators. Studying such a research theme has not received sufficient attention within the family business field, which emphasises the need for such a topic to be investigated. The independent variables for the study entailed dynamic capabilities and decision-making constructs while the dependent variable comprised family business performance. Consequently, the mediating variables included strategic foresight, strategic flexibility, and strategic creativity while the moderating variables included strategic creativity and strategic flexibility. This investigation followed a quantitative methodological logic by employing the questionnaire as the research instrument. In total, 347 family business managers and owners from the eight districts of the Eastern Cape participated in the study. The family businesses were accessed through a convenience sampling technique to identify if their business suited the inclusion criteria of the study. Data analysis was executed through SPSS where the moderation-mediation analysis followed the Hayes process macro through multiple regression analysis. The research findings revealed that there is both a significant positive and mediation relationship between the dynamic capabilities constructs entailing environmental scanning, scenario planning, knowledge creation, culture, and formal organisation with the decision-making constructs of strategic foresight, flexibility, and creativity with family business performance. Interestingly, a moderation relationship does not exist between these constructs and the strategic foresight of the family firm. However, a moderation relationship does exist between the dynamic capabilities constructs of knowledge creation and culture and strategic foresight when moderated by strategic creativity. Thus, family business performance is positively influenced by the said dynamic capabilities and decision-making constructs. The results ultimately provided implications for family businesses with practical advice on the successful implementation and monitoring of dynamic capabilities and decisionmaking in the family business. Lastly, this study makes recommendations for family and non-family business owners, government, and academics. These recommendations entail family businesses implementing a lucrative dynamic capability model to improve family business performance in the context of South Africa. , Thesis (PhD) -- Faculty of Management and Commerce, 2023
- Full Text:
- Date Issued: 2023-07
- Authors: Pike-Bowles, Angela https://orcid.org/0000-0003-4811-0455
- Date: 2023-07
- Subjects: Family-owned business enterprises -- South Africa -- Decision making , Family-owned business enterprises -- Succession -- South Africa , Management information systems
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28684 , vital:74499
- Description: Family businesses are fundamental for any world economy where they contribute significantly to economic prosperity. However, family firms are faced with new obstacles that are directly affecting their business performance due to the current economic uncertainties and the rapidly changing environments. The implementation of dynamic capabilities is a fundamental strategic tool family firms can exercise to improve their competitive advantage. Although family business research has proliferated over the last 10 years, there are few studies in South Africa investigating the extent to which dynamic capabilities influence family business performance. This study, therefore, had a primary objective to investigate the determinants of family business performance and the role that dynamic capabilities play as mediators and moderators. Studying such a research theme has not received sufficient attention within the family business field, which emphasises the need for such a topic to be investigated. The independent variables for the study entailed dynamic capabilities and decision-making constructs while the dependent variable comprised family business performance. Consequently, the mediating variables included strategic foresight, strategic flexibility, and strategic creativity while the moderating variables included strategic creativity and strategic flexibility. This investigation followed a quantitative methodological logic by employing the questionnaire as the research instrument. In total, 347 family business managers and owners from the eight districts of the Eastern Cape participated in the study. The family businesses were accessed through a convenience sampling technique to identify if their business suited the inclusion criteria of the study. Data analysis was executed through SPSS where the moderation-mediation analysis followed the Hayes process macro through multiple regression analysis. The research findings revealed that there is both a significant positive and mediation relationship between the dynamic capabilities constructs entailing environmental scanning, scenario planning, knowledge creation, culture, and formal organisation with the decision-making constructs of strategic foresight, flexibility, and creativity with family business performance. Interestingly, a moderation relationship does not exist between these constructs and the strategic foresight of the family firm. However, a moderation relationship does exist between the dynamic capabilities constructs of knowledge creation and culture and strategic foresight when moderated by strategic creativity. Thus, family business performance is positively influenced by the said dynamic capabilities and decision-making constructs. The results ultimately provided implications for family businesses with practical advice on the successful implementation and monitoring of dynamic capabilities and decisionmaking in the family business. Lastly, this study makes recommendations for family and non-family business owners, government, and academics. These recommendations entail family businesses implementing a lucrative dynamic capability model to improve family business performance in the context of South Africa. , Thesis (PhD) -- Faculty of Management and Commerce, 2023
- Full Text:
- Date Issued: 2023-07
A framework for understanding the role of culture and the transmission of women entrepreneurship promotion in South Africa
- Karasi, Yvonne https://orcid.org/0000-0001-8822-281X
- Authors: Karasi, Yvonne https://orcid.org/0000-0001-8822-281X
- Date: 2023-06
- Subjects: Women in economic development -- South Africa , Businesswomen -- South Africa , Women-owned business enterprises -- South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28569 , vital:74421
- Description: Developing countries are increasingly recognising the need for promoting women entrepreneurship. Within Africa, women’s contribution tends to be ignored. Thus, gender discrimination, the lack of finance, limited education, limited technical skills, role conflicts, and culture are among the most cited barriers for women entrepreneurship. Recent literature challenges the notion that all aforementioned factors are barriers to entrepreneurial action. To contribute to knowledge, this study sensitises the culture element. Accordingly, there is a growing body of knowledge that is viewing culture as an enabler (and not a barrier) of women entrepreneurship. Two factors are at the core of this argument: (1) culture, as it is understood, in the contemporary literature is not appropriately conceptualised from an African perspective. (2) The definition of entrepreneurship as it relates to the developing countries is restrictive. These definitions ignore various economic activities undertaken mostly by women, which if carefully considered are indeed entrepreneurship. Therefore, it was appropriate for this thesis to explore the issues of both culture and entrepreneurship within the existing body of literature with the intention of gaining a knowledge of the dynamics of women's entrepreneurship in Africa. The scant research that has been done on the entrepreneurial dynamics of women and, in particular, how culture influences the latter, was recognized as a lacuna in the existing body of literature. Consequently, this study considered cultural determinants of entrepreneurship as well as the transmission of entrepreneurship across generations. The thesis was undertaken using a qualitative methodology. Using snowballing sampling technique, female entrepreneurs from 3 provinces (i.e., Gauteng, Limpopo, and Eastern Cape) in South Africa participated in the study. Data were gathered through in-depth interviews. The transcribed interviews were analyzed using thematic analysis. Findings revealed, among others, that there is a misconception on what constitutes “true African culture.” Thus, results suggest that the conceptualisation of culture in the African context, contrasts the conceptualisation in previous (non-African) literature. Furthermore, some elements of culture are indeed barriers. Interestingly, personal factors such as characteristics of women entrepreneurs and entrepreneurial intentions have also contributed to the barriers to women entrepreneurship. Finally, the study proposes a framework for leveraging culture to be an entrepreneurial enabler for women entrepreneurship. , Thesis (PhD) -- Faculty of Management and Commerce, 2023
- Full Text:
- Date Issued: 2023-06
- Authors: Karasi, Yvonne https://orcid.org/0000-0001-8822-281X
- Date: 2023-06
- Subjects: Women in economic development -- South Africa , Businesswomen -- South Africa , Women-owned business enterprises -- South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28569 , vital:74421
- Description: Developing countries are increasingly recognising the need for promoting women entrepreneurship. Within Africa, women’s contribution tends to be ignored. Thus, gender discrimination, the lack of finance, limited education, limited technical skills, role conflicts, and culture are among the most cited barriers for women entrepreneurship. Recent literature challenges the notion that all aforementioned factors are barriers to entrepreneurial action. To contribute to knowledge, this study sensitises the culture element. Accordingly, there is a growing body of knowledge that is viewing culture as an enabler (and not a barrier) of women entrepreneurship. Two factors are at the core of this argument: (1) culture, as it is understood, in the contemporary literature is not appropriately conceptualised from an African perspective. (2) The definition of entrepreneurship as it relates to the developing countries is restrictive. These definitions ignore various economic activities undertaken mostly by women, which if carefully considered are indeed entrepreneurship. Therefore, it was appropriate for this thesis to explore the issues of both culture and entrepreneurship within the existing body of literature with the intention of gaining a knowledge of the dynamics of women's entrepreneurship in Africa. The scant research that has been done on the entrepreneurial dynamics of women and, in particular, how culture influences the latter, was recognized as a lacuna in the existing body of literature. Consequently, this study considered cultural determinants of entrepreneurship as well as the transmission of entrepreneurship across generations. The thesis was undertaken using a qualitative methodology. Using snowballing sampling technique, female entrepreneurs from 3 provinces (i.e., Gauteng, Limpopo, and Eastern Cape) in South Africa participated in the study. Data were gathered through in-depth interviews. The transcribed interviews were analyzed using thematic analysis. Findings revealed, among others, that there is a misconception on what constitutes “true African culture.” Thus, results suggest that the conceptualisation of culture in the African context, contrasts the conceptualisation in previous (non-African) literature. Furthermore, some elements of culture are indeed barriers. Interestingly, personal factors such as characteristics of women entrepreneurs and entrepreneurial intentions have also contributed to the barriers to women entrepreneurship. Finally, the study proposes a framework for leveraging culture to be an entrepreneurial enabler for women entrepreneurship. , Thesis (PhD) -- Faculty of Management and Commerce, 2023
- Full Text:
- Date Issued: 2023-06
Foreign direct investment, institutions and economic growth in the selected Southern African Development Community (SADC) countries
- Authors: Onceya, Siyabulela
- Date: 2023-06
- Subjects: Investments, Foreign -- Africa, Southern , Southern African Development Community -- Economic conditions , Economic development -- Africa, Southern
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28672 , vital:74497
- Description: Examining the relationship between economic growth and foreign direct investment (FDI) has been a subject of discussion for many researchers, economists, and policy analysts mainly in developing regions. It is important to note that, recent literature highlights that there are other country-specific conditions such as state of institutions which are important in attracting FDI inflows into a country. Given this, the study analysed the relationship between FDI, institutions and economic growth in the Southern African Development Community (SADC) for the period 1990- 2020. The analysis was carried out at both cross- country (2010 to 2018) and individual country level (1990 to 2018). The main objectives of the study were to review the trends of FDI inflow into the region, institutional framework, and trends economic growth in the region as well as member countries. Secondly, to analyse the impact of FDI inflow and institutions on economic growth in the selected SADC countries. Thirdly, to examine how institutions and other factors determine the amount of FDI inflow to the selected SADC countries an provide policy recommendations. Existing literature has documented the relationship between FDI and economic growth. However, the significance of this study is that it provides an analysis of the impact of FDI inflows on economic growth in the SADC region at both cross-country and country specific level. At cross- country level, the Generalized Methods of Moments (GMM) was utilized as the estimation technique. The empirical results revealed that there exists a positive relationship between FDI and economic growth both in the short run and long run. The results also revealed that institutions in combination with financial sector development have a positive effect on economic growth in the SADC region. This gives support to the complimentary view of the importance of institutions and financial sector development as important factors determining the extent to which FDI influences economic growth. Guided by economic theory which suggests that there is a two-way relationship between FDI and economic growth, granger causality tests were performed to check the direction of effect between the two variables. The empirical results revealed that there is a bi-directional relationship between FDI, institutions and economic growth. This in a way suggest that the past values of each of the variables, explains the current values of the other variables. On the other hand, at country level, utilising the Autoregressive Distributed Lag model, empirical results revealed that the effects of FDI and institutions on economic growth is positive and significant. However, this was not found to be the case for Mauritius and Namibia. Given the significant role played by FDI in promoting economic growth, the study also investigated the factors determining the inflow of FDI into the SADC region focusing on the role played by institutions and other factors utilising GMM technique. The empirical results revealed that, in addition to institutions, financial development, infrastructure, and education also play an important role in determining the inflow of FDI into these countries. To a greater extent the same findings were also established at country level. Of great importance the study recommends that at a country level, countries should develop and adopt policies that strengthen good governance and sound institutions. These policies must be implemented and monitored to attract more FDI both in the short-run and long-run. , Thesis (DCom) -- Faculty of Management and Commerce, 2023
- Full Text:
- Date Issued: 2023-06
- Authors: Onceya, Siyabulela
- Date: 2023-06
- Subjects: Investments, Foreign -- Africa, Southern , Southern African Development Community -- Economic conditions , Economic development -- Africa, Southern
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28672 , vital:74497
- Description: Examining the relationship between economic growth and foreign direct investment (FDI) has been a subject of discussion for many researchers, economists, and policy analysts mainly in developing regions. It is important to note that, recent literature highlights that there are other country-specific conditions such as state of institutions which are important in attracting FDI inflows into a country. Given this, the study analysed the relationship between FDI, institutions and economic growth in the Southern African Development Community (SADC) for the period 1990- 2020. The analysis was carried out at both cross- country (2010 to 2018) and individual country level (1990 to 2018). The main objectives of the study were to review the trends of FDI inflow into the region, institutional framework, and trends economic growth in the region as well as member countries. Secondly, to analyse the impact of FDI inflow and institutions on economic growth in the selected SADC countries. Thirdly, to examine how institutions and other factors determine the amount of FDI inflow to the selected SADC countries an provide policy recommendations. Existing literature has documented the relationship between FDI and economic growth. However, the significance of this study is that it provides an analysis of the impact of FDI inflows on economic growth in the SADC region at both cross-country and country specific level. At cross- country level, the Generalized Methods of Moments (GMM) was utilized as the estimation technique. The empirical results revealed that there exists a positive relationship between FDI and economic growth both in the short run and long run. The results also revealed that institutions in combination with financial sector development have a positive effect on economic growth in the SADC region. This gives support to the complimentary view of the importance of institutions and financial sector development as important factors determining the extent to which FDI influences economic growth. Guided by economic theory which suggests that there is a two-way relationship between FDI and economic growth, granger causality tests were performed to check the direction of effect between the two variables. The empirical results revealed that there is a bi-directional relationship between FDI, institutions and economic growth. This in a way suggest that the past values of each of the variables, explains the current values of the other variables. On the other hand, at country level, utilising the Autoregressive Distributed Lag model, empirical results revealed that the effects of FDI and institutions on economic growth is positive and significant. However, this was not found to be the case for Mauritius and Namibia. Given the significant role played by FDI in promoting economic growth, the study also investigated the factors determining the inflow of FDI into the SADC region focusing on the role played by institutions and other factors utilising GMM technique. The empirical results revealed that, in addition to institutions, financial development, infrastructure, and education also play an important role in determining the inflow of FDI into these countries. To a greater extent the same findings were also established at country level. Of great importance the study recommends that at a country level, countries should develop and adopt policies that strengthen good governance and sound institutions. These policies must be implemented and monitored to attract more FDI both in the short-run and long-run. , Thesis (DCom) -- Faculty of Management and Commerce, 2023
- Full Text:
- Date Issued: 2023-06
Implementation of grade progression policy and its implications for progressed grade 12 learners’ identities
- Authors: Mdingi, Khayalethu Chris
- Date: 2023-06
- Subjects: Grade repetition , Education -- Standards
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28524 , vital:74380
- Description: The aim of progressing learners is to allow them to move with their age cohort, thereby boosting their motivation levels. It is believed that this would encourage these learners to study hard and produce good academic results. The Grade Progression Policy also assumes that the dropout rate caused by learners’ academic underperformance would be reduced. Despite the existence of the Grade Progression Policy, it seems that there is still high failure and dropout rates among progressed Grade 12 learners in the Eastern Cape Province. This qualitative case study was premised on the interpretivist paradigm and explored the implementation of the Grade Progression Policy and its implications on progressed Grade 12 learners’ identities. Twelve teachers (four principals, four Departmental Heads, four Post Level One teachers), and four learners were purposively selected in four secondary schools in the Amathole East Education District. Data was collected through semi-structured interviews and documentary analysis. The data was analysed by means of thematic approach. The data showed that the implementation of Grade Progression Policy brought about learner-teacher adversarial relations. Findings also showed that teachers had a negative attitude to the Grade Progression Policy and were unwilling to adapt to change. They had low morale and blamed the Department of Education for not giving them support. With regards to the implications of grade progression on Grade 12 learners’ identities, it emerged from the data that these learners were negatively affected by the implementation of this policy as their self-esteem was reportedly low. They felt stigmatized and regarded themselves as learners who could not achieve academically. Although most of the selected learners reported that it enhanced their motivation levels, it also transpired from the data that progressed Grade 12 learners were not achieving academically and were inadequately given support by the teachers. The study concluded therefore that the policy did not sufficiently address the intention of the DoE in terms of improving learners’ academic performance and enhancement of learners’ psychosocial identities. , Thesis (PhD) -- Faculty of Education, 2023
- Full Text:
- Date Issued: 2023-06
- Authors: Mdingi, Khayalethu Chris
- Date: 2023-06
- Subjects: Grade repetition , Education -- Standards
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28524 , vital:74380
- Description: The aim of progressing learners is to allow them to move with their age cohort, thereby boosting their motivation levels. It is believed that this would encourage these learners to study hard and produce good academic results. The Grade Progression Policy also assumes that the dropout rate caused by learners’ academic underperformance would be reduced. Despite the existence of the Grade Progression Policy, it seems that there is still high failure and dropout rates among progressed Grade 12 learners in the Eastern Cape Province. This qualitative case study was premised on the interpretivist paradigm and explored the implementation of the Grade Progression Policy and its implications on progressed Grade 12 learners’ identities. Twelve teachers (four principals, four Departmental Heads, four Post Level One teachers), and four learners were purposively selected in four secondary schools in the Amathole East Education District. Data was collected through semi-structured interviews and documentary analysis. The data was analysed by means of thematic approach. The data showed that the implementation of Grade Progression Policy brought about learner-teacher adversarial relations. Findings also showed that teachers had a negative attitude to the Grade Progression Policy and were unwilling to adapt to change. They had low morale and blamed the Department of Education for not giving them support. With regards to the implications of grade progression on Grade 12 learners’ identities, it emerged from the data that these learners were negatively affected by the implementation of this policy as their self-esteem was reportedly low. They felt stigmatized and regarded themselves as learners who could not achieve academically. Although most of the selected learners reported that it enhanced their motivation levels, it also transpired from the data that progressed Grade 12 learners were not achieving academically and were inadequately given support by the teachers. The study concluded therefore that the policy did not sufficiently address the intention of the DoE in terms of improving learners’ academic performance and enhancement of learners’ psychosocial identities. , Thesis (PhD) -- Faculty of Education, 2023
- Full Text:
- Date Issued: 2023-06
Knowledge, awareness, and molecular epidemiology of fasciolosis in dairy cattle slaughtered in three commercial abattoirs in Eastern Cape Province, South Africa
- Authors: Mpisana, Zuko
- Date: 2023-06
- Subjects: Farm management -- South Africa -- Eastern Cape , Dairy cattle -- South Africa -- Eastern Cape , Fascioliasis
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28173 , vital:73792
- Description: Flukes and snail-borne diseases present significant challenges to livestock production, particularly impacting the dairy industry in the Eastern Cape Province, South Africa. Despite the challenges faced by the dairy sector, the level of knowledge and awareness among dairy farm personnel regarding the prevalence of bovine fasciolosis is unknown in Eastern Cape Province. Additionally, the genomic sequence of Fasciola spp. in dairy cattle slaughtered under abattoir conditions remains undisclosed. The primary objective of the titled study is to evaluate the knowledge, awareness, and molecular epidemiology of fasciolosis in dairy cattle slaughtered in three commercial abattoirs in the Eastern Cape province of South Africa. A structured questionnaire was prepared and randomly administered to 152 dairy farm personnel to investigate the knowledge and awareness of the aetiology, risk factors, and clinical signs of bovine fasciolosis among dairy farm personnel in the Eastern Cape Province, South Africa. A higher proportion of respondents from coastal regions were knowledgeable about the aetiology P equals 0.001 and the intermediate host P equals 0.000 of fasciolosis than those from the inland farms. A higher proportion of dairy farm personnel were not knowledgeable about the clinical signs of fasciolosis P equals 0.000 and the zoonotic potential P equals 0.001 of the disease. All farm personnel knew that season P 0.001 is a risk factor associated with snail-borne disease and occur throughout the year. However, the majority 63.2 percent of farm personnel agreed that fasciolosis was more prevalent in the summer followed by spring 27.6 percent, autumn 4.7 percent and winter 4.7 percent. Experiment 2 examined the body condition scores, fluke intensity, liver pathology, and carcass quality of various dairy cattle genotypes affected by Fasciola spp. infection, within three high-capacity abattoirs located in the Eastern Cape Province, South Africa. Milder infections were significantly noted to occur at a higher rate P 0.05 in Cross-bred cattle 46.9 percent followed by Holstein Friesian 39.5 percent and Jersey 30.9 percent cattle. Conversely, moderate infections were more prevalent P 0.05 among Jersey cattle 28.0 percent followed by Holstein Friesian 15.4 percent and Cross bred 1.9 percent cattle. Severe infections were more frequent P 0.05 in Holstein-Friesian 45.1 percent, followed by Jersey 41.9 percent and then Cross-bred 31.7 percent cattle. Heavy infections were observed in cattle with poor body condition scores in CA3. Mild infections were observed more in cattle with moderate body condition scores in CA3 and CA1 and less in CA2. Chapter 5 compared the detection rate of Fasciola infections using four different methods real-time quantitative polymerase chain reaction qPCR faecal sedimentation, antibody enzyme linked immunosorbent assay Ab ELISA and post-mortem liver examination among naturally infected cattle slaughtered at the abattoirs in the Eastern Cape Province, South Africa. A total of 145 slaughter cattle were screened for Fasciola infestation by liver examination, and corresponding samples from individual animals were analysed in the laboratory using Ab ELISA faecal sedimentation, and qPCR. The detection rate by liver inspection gold standard was significantly P 0.0001 higher than that by sedimentation and Ab ELISA but not significantly P 0.05 different from that by qPCR P equals 0.198. Post-mortem liver examination 94.5 percent and qPCR 90.4 percent had higher detection rate compared to Ab ELISA 22.6 percent and sedimentation 3.53 percent, respectively. The agreement between Ab ELISA and sedimentation was poor to slight kappa equals to minus 0.09 and with qPCR it was 0.008. The fourth experiment investigated genomic sequence of Fasciola spp. from faecal sample of slaughtered dairy cattle in Eastern Cape Province South Africa. Sequential and phylogenetic analyses were conducted to detect the presence of Fasciola spp. from the faecal samples obtained at the high throughput abattoirs. Fasciola hepatica and F. gigantica ITS 2 sequences were obtained by amplifying the 364 bp and 300 bp genes, respectively using species specific conventional PCR assays followed by cloning and sequencing. The phylogenetic tree revealed the presence of Fasciola hepatica as the only aetiological agent infecting dairy cattle in the Eastern Cape Province South Africa. The study concluded that dairy farm personnel lacks knowledge about zoonotic potentials, aetiological agents of fasciolosis high fluke intensity and its impact on carcasses sensitivity and suitability of detection methods. The study observed Fasciola hepatica as the only trematode spp. present in Eastern Cape Province South Africa. , Thesis (PhD) -- Faculty of Science and Agriculture, 2023
- Full Text:
- Date Issued: 2023-06
- Authors: Mpisana, Zuko
- Date: 2023-06
- Subjects: Farm management -- South Africa -- Eastern Cape , Dairy cattle -- South Africa -- Eastern Cape , Fascioliasis
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/28173 , vital:73792
- Description: Flukes and snail-borne diseases present significant challenges to livestock production, particularly impacting the dairy industry in the Eastern Cape Province, South Africa. Despite the challenges faced by the dairy sector, the level of knowledge and awareness among dairy farm personnel regarding the prevalence of bovine fasciolosis is unknown in Eastern Cape Province. Additionally, the genomic sequence of Fasciola spp. in dairy cattle slaughtered under abattoir conditions remains undisclosed. The primary objective of the titled study is to evaluate the knowledge, awareness, and molecular epidemiology of fasciolosis in dairy cattle slaughtered in three commercial abattoirs in the Eastern Cape province of South Africa. A structured questionnaire was prepared and randomly administered to 152 dairy farm personnel to investigate the knowledge and awareness of the aetiology, risk factors, and clinical signs of bovine fasciolosis among dairy farm personnel in the Eastern Cape Province, South Africa. A higher proportion of respondents from coastal regions were knowledgeable about the aetiology P equals 0.001 and the intermediate host P equals 0.000 of fasciolosis than those from the inland farms. A higher proportion of dairy farm personnel were not knowledgeable about the clinical signs of fasciolosis P equals 0.000 and the zoonotic potential P equals 0.001 of the disease. All farm personnel knew that season P 0.001 is a risk factor associated with snail-borne disease and occur throughout the year. However, the majority 63.2 percent of farm personnel agreed that fasciolosis was more prevalent in the summer followed by spring 27.6 percent, autumn 4.7 percent and winter 4.7 percent. Experiment 2 examined the body condition scores, fluke intensity, liver pathology, and carcass quality of various dairy cattle genotypes affected by Fasciola spp. infection, within three high-capacity abattoirs located in the Eastern Cape Province, South Africa. Milder infections were significantly noted to occur at a higher rate P 0.05 in Cross-bred cattle 46.9 percent followed by Holstein Friesian 39.5 percent and Jersey 30.9 percent cattle. Conversely, moderate infections were more prevalent P 0.05 among Jersey cattle 28.0 percent followed by Holstein Friesian 15.4 percent and Cross bred 1.9 percent cattle. Severe infections were more frequent P 0.05 in Holstein-Friesian 45.1 percent, followed by Jersey 41.9 percent and then Cross-bred 31.7 percent cattle. Heavy infections were observed in cattle with poor body condition scores in CA3. Mild infections were observed more in cattle with moderate body condition scores in CA3 and CA1 and less in CA2. Chapter 5 compared the detection rate of Fasciola infections using four different methods real-time quantitative polymerase chain reaction qPCR faecal sedimentation, antibody enzyme linked immunosorbent assay Ab ELISA and post-mortem liver examination among naturally infected cattle slaughtered at the abattoirs in the Eastern Cape Province, South Africa. A total of 145 slaughter cattle were screened for Fasciola infestation by liver examination, and corresponding samples from individual animals were analysed in the laboratory using Ab ELISA faecal sedimentation, and qPCR. The detection rate by liver inspection gold standard was significantly P 0.0001 higher than that by sedimentation and Ab ELISA but not significantly P 0.05 different from that by qPCR P equals 0.198. Post-mortem liver examination 94.5 percent and qPCR 90.4 percent had higher detection rate compared to Ab ELISA 22.6 percent and sedimentation 3.53 percent, respectively. The agreement between Ab ELISA and sedimentation was poor to slight kappa equals to minus 0.09 and with qPCR it was 0.008. The fourth experiment investigated genomic sequence of Fasciola spp. from faecal sample of slaughtered dairy cattle in Eastern Cape Province South Africa. Sequential and phylogenetic analyses were conducted to detect the presence of Fasciola spp. from the faecal samples obtained at the high throughput abattoirs. Fasciola hepatica and F. gigantica ITS 2 sequences were obtained by amplifying the 364 bp and 300 bp genes, respectively using species specific conventional PCR assays followed by cloning and sequencing. The phylogenetic tree revealed the presence of Fasciola hepatica as the only aetiological agent infecting dairy cattle in the Eastern Cape Province South Africa. The study concluded that dairy farm personnel lacks knowledge about zoonotic potentials, aetiological agents of fasciolosis high fluke intensity and its impact on carcasses sensitivity and suitability of detection methods. The study observed Fasciola hepatica as the only trematode spp. present in Eastern Cape Province South Africa. , Thesis (PhD) -- Faculty of Science and Agriculture, 2023
- Full Text:
- Date Issued: 2023-06
An efficient approach for the synthesis of dolutegravir and its analogue exploiting flow chemistry
- Authors: Nqeketo, Sinazo
- Date: 2023-04
- Subjects: HIV (Viruses) – Enzymes –Inhibitors , Antiviral agents -- South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/${Handle} , vital:70635
- Description: Africa has the highest Human Immunodeficiency Virus (HIV) prevalence in the world and has invested heavily in running its HIV programmes and conducting research of medical significance. Despite efforts in combating this disease the production, distribution, cost, and availability of antiretroviral (ARV) generics remains a major problem as they are imported from China and India. Exploring the recently emerged “enabling technique”, namely flow chemistry in the production of APIs has gained a lot of attention. This study was devoted on exploring the application of flow chemistry on the synthesis of a newly approved anti-HIV drug dolutegravir (DTG); an integrase inhibitor with a high genetic barrier to resistance with a daily dosing scheduled compared to other ARVs and its third-generation inhibitor analogue, cabotegravir. Chapter one covers a comprehensive background and literature review of the HIV epidemic, an introduction of antiretroviral therapy as well as detailed dolutegravir and cabotegravir synthesis. A brief introduction of continuous flow technology with its advantages and disadvantages is discussed in this chapter. The efficient seven-step continuous flow procedure afforded dolutegravir and cabotegravir in improved reaction times and yields compared to the traditional batch procedure was demonstrated. The significant advantage of this flow process includes the reduction of the overall reaction time from step one to step seven, from prolonged 68 hours in batch to 34 minutes. The overall yield of each reaction step improved dramatically upon flow optimization. The yields of the second step (selective ester hydrolysis), fourth step (cyclization) and fifth step (amidation) increased from 64 %, 40 % and 33 % in batch to 98 %, 71 % and 100 % yield by HPLC respectively. Other than improved yields and residence times which was aided advantages of microreactor technology including intensive mixing, the flow process is also much better because it is cost effective. Most importantly, a novel process on the formation of pyridinone intermediate using ion-exchange resin catalysts towards the synthesis of dolutegravir and cabotegravir was described in this study , Thesis (PhD) -- Faculty of Science, School of Biomolecular and Chemical Science, 2023
- Full Text:
- Date Issued: 2023-04
- Authors: Nqeketo, Sinazo
- Date: 2023-04
- Subjects: HIV (Viruses) – Enzymes –Inhibitors , Antiviral agents -- South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/${Handle} , vital:70635
- Description: Africa has the highest Human Immunodeficiency Virus (HIV) prevalence in the world and has invested heavily in running its HIV programmes and conducting research of medical significance. Despite efforts in combating this disease the production, distribution, cost, and availability of antiretroviral (ARV) generics remains a major problem as they are imported from China and India. Exploring the recently emerged “enabling technique”, namely flow chemistry in the production of APIs has gained a lot of attention. This study was devoted on exploring the application of flow chemistry on the synthesis of a newly approved anti-HIV drug dolutegravir (DTG); an integrase inhibitor with a high genetic barrier to resistance with a daily dosing scheduled compared to other ARVs and its third-generation inhibitor analogue, cabotegravir. Chapter one covers a comprehensive background and literature review of the HIV epidemic, an introduction of antiretroviral therapy as well as detailed dolutegravir and cabotegravir synthesis. A brief introduction of continuous flow technology with its advantages and disadvantages is discussed in this chapter. The efficient seven-step continuous flow procedure afforded dolutegravir and cabotegravir in improved reaction times and yields compared to the traditional batch procedure was demonstrated. The significant advantage of this flow process includes the reduction of the overall reaction time from step one to step seven, from prolonged 68 hours in batch to 34 minutes. The overall yield of each reaction step improved dramatically upon flow optimization. The yields of the second step (selective ester hydrolysis), fourth step (cyclization) and fifth step (amidation) increased from 64 %, 40 % and 33 % in batch to 98 %, 71 % and 100 % yield by HPLC respectively. Other than improved yields and residence times which was aided advantages of microreactor technology including intensive mixing, the flow process is also much better because it is cost effective. Most importantly, a novel process on the formation of pyridinone intermediate using ion-exchange resin catalysts towards the synthesis of dolutegravir and cabotegravir was described in this study , Thesis (PhD) -- Faculty of Science, School of Biomolecular and Chemical Science, 2023
- Full Text:
- Date Issued: 2023-04
An evaluation of the effectiveness of area-based conservation interventions in avoiding biodiversity loss in South Africa
- Authors: Von Staden, Lize
- Date: 2023-04
- Subjects: Environmental policy , Conservation of natural resources -- Government policy -- South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/61115 , vital:69762
- Description: Counterfactual impact evaluation studies form an important evidence base for the effectiveness of conservation projects, programs, and policies (collectively referred to as conservation interventions). In South Africa, counterfactual impact evaluation methods have rarely been applied to local conservation interventions, and therefore evidence for the effectiveness of key strategic national conservation approaches is lacking. This study evaluated three area-based interventions that together aim to avoid the loss of areas most important for the persistence of biodiversity in the terrestrial realm as evidence towards the effectiveness of South Africa’s landscape approach to biodiversity conservation. The first intervention, South Africa’s National Protected Area Expansion Strategy (NPAES), set ambitious targets to double the extent of South Africa’s protected area network while ensuring that the expansion preferentially occurs in areas of under-represented biodiversity. The strategy was evaluated in terms of its effectiveness in guiding protected area expansion towards more equitable representation of South Africa’s biodiversity through an assessment of changes in indicators of protected area expansion decision-making before and after the implementation of the strategy. The second intervention is the use of maps of biodiversity priorities to guide land use change decisions outside protected areas. Impact was evaluated as avoided loss of Critical Biodiversity Areas (CBAs), which need to remain in a natural condition to meet in situ conservation targets for species, ecosystems, and ecological processes. Avoided loss in CBAs was benchmarked against avoided loss in protected areas, to contextualize the effectiveness of land use planning as a conservation intervention. Lastly, the effectiveness of stricter land use regulations for threatened ecosystems to reduce land conversion pressure on these ecosystems was evaluated. Key findings were that protected areas are highly effective conservation interventions where they can be implemented, but their capacity for conservation impact is limited by severe constraints on strategic expansion. , Thesis (PhD) -- Faculty of Science, School of Environmental Sciences, 2023
- Full Text:
- Date Issued: 2023-04
- Authors: Von Staden, Lize
- Date: 2023-04
- Subjects: Environmental policy , Conservation of natural resources -- Government policy -- South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/61115 , vital:69762
- Description: Counterfactual impact evaluation studies form an important evidence base for the effectiveness of conservation projects, programs, and policies (collectively referred to as conservation interventions). In South Africa, counterfactual impact evaluation methods have rarely been applied to local conservation interventions, and therefore evidence for the effectiveness of key strategic national conservation approaches is lacking. This study evaluated three area-based interventions that together aim to avoid the loss of areas most important for the persistence of biodiversity in the terrestrial realm as evidence towards the effectiveness of South Africa’s landscape approach to biodiversity conservation. The first intervention, South Africa’s National Protected Area Expansion Strategy (NPAES), set ambitious targets to double the extent of South Africa’s protected area network while ensuring that the expansion preferentially occurs in areas of under-represented biodiversity. The strategy was evaluated in terms of its effectiveness in guiding protected area expansion towards more equitable representation of South Africa’s biodiversity through an assessment of changes in indicators of protected area expansion decision-making before and after the implementation of the strategy. The second intervention is the use of maps of biodiversity priorities to guide land use change decisions outside protected areas. Impact was evaluated as avoided loss of Critical Biodiversity Areas (CBAs), which need to remain in a natural condition to meet in situ conservation targets for species, ecosystems, and ecological processes. Avoided loss in CBAs was benchmarked against avoided loss in protected areas, to contextualize the effectiveness of land use planning as a conservation intervention. Lastly, the effectiveness of stricter land use regulations for threatened ecosystems to reduce land conversion pressure on these ecosystems was evaluated. Key findings were that protected areas are highly effective conservation interventions where they can be implemented, but their capacity for conservation impact is limited by severe constraints on strategic expansion. , Thesis (PhD) -- Faculty of Science, School of Environmental Sciences, 2023
- Full Text:
- Date Issued: 2023-04
An exploration of the Participatory Guarantee System (PGS) facilitating the growth and certification of small-scale organic farmers: Giyani, Garden Route and Overberg case studies
- Authors: Mashele,N’wa-Jama
- Date: 2023-04
- Subjects: Organic farming – Case studies --South Africa , Organic farming research
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/60741 , vital:66574
- Description: In this study, I evaluated the Participatory Guarantee System (PGS) as a framework to support the growth and certification of small-scale organic farmers. I used the interpretivism and constructivism lenses to understand the PGS from the perspective of members of three PGS groups. The research was qualitative, treating the three PGS groups as case studies. I collected data using focus groups, semi-structured interviews, questionnaires, field notes and observations. The theoretical frameworks that guided the research and data analysis were Socio-ecological Systems (SES) based principles and the Multi-Level-Perspective (MLP) framework. The data were analysed using Atlas.ti content analysis software. The key results were grouped into four themes: capacity; market and logistics; learning process; and disturbance, shock and stress. The theme of ‘capacity’ dealt with the functioning of a PGS, where three categories were identified: group composition and capacity; resource limitations and institutional support; marketing and consumer education. The more diversity in age, education and culture of PGS stakeholders, the better performance and chances of continuity and propagation. PGS has limited capacity partly due to its voluntary nature and infancy. It needs institutional support to grow and be useful for members. Department of Agriculture extension officers knew little about organic farming, thus limiting their engagement and assistance to such farmers. The theme of ‘market and logistics’ looked at the various factors that influence the farmers’ market reach. The perception from the members was that there was minimal consumer awareness about organic agriculture and the PGS. The marketing of organic produce relied largely on the individual farmer’s efforts and ability to search for and secure markets. The theme of the ‘learning process’ was categorised into learning and knowledge exchange. Members of the PGS groups highly regarded the invaluable knowledge shared through farm visits and online platforms, such as their WhatsApp groups. This knowledge improved and informed their farming techniques and led to the growth of v their skill base and experimentation. They viewed the way knowledge was exchanged as non-threatening and highly useful. The fourth theme of ‘disturbance, shock and stress’ dealt with the effects of COVID19. The three groups were all affected by lockdown restrictions (at the time of data collection) and were initially cut off from their usual markets. This led to a loss of income, loss of farm staff and a loss of the desired growth of the farms. The group’s diverse farming practices bolstered their resilience, enabling them to adapt and try alternative marketing strategies. , Thesis (MSc) -- Faculty of Science, School of Natural Resource Management, 2023
- Full Text:
- Date Issued: 2023-04
- Authors: Mashele,N’wa-Jama
- Date: 2023-04
- Subjects: Organic farming – Case studies --South Africa , Organic farming research
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/60741 , vital:66574
- Description: In this study, I evaluated the Participatory Guarantee System (PGS) as a framework to support the growth and certification of small-scale organic farmers. I used the interpretivism and constructivism lenses to understand the PGS from the perspective of members of three PGS groups. The research was qualitative, treating the three PGS groups as case studies. I collected data using focus groups, semi-structured interviews, questionnaires, field notes and observations. The theoretical frameworks that guided the research and data analysis were Socio-ecological Systems (SES) based principles and the Multi-Level-Perspective (MLP) framework. The data were analysed using Atlas.ti content analysis software. The key results were grouped into four themes: capacity; market and logistics; learning process; and disturbance, shock and stress. The theme of ‘capacity’ dealt with the functioning of a PGS, where three categories were identified: group composition and capacity; resource limitations and institutional support; marketing and consumer education. The more diversity in age, education and culture of PGS stakeholders, the better performance and chances of continuity and propagation. PGS has limited capacity partly due to its voluntary nature and infancy. It needs institutional support to grow and be useful for members. Department of Agriculture extension officers knew little about organic farming, thus limiting their engagement and assistance to such farmers. The theme of ‘market and logistics’ looked at the various factors that influence the farmers’ market reach. The perception from the members was that there was minimal consumer awareness about organic agriculture and the PGS. The marketing of organic produce relied largely on the individual farmer’s efforts and ability to search for and secure markets. The theme of the ‘learning process’ was categorised into learning and knowledge exchange. Members of the PGS groups highly regarded the invaluable knowledge shared through farm visits and online platforms, such as their WhatsApp groups. This knowledge improved and informed their farming techniques and led to the growth of v their skill base and experimentation. They viewed the way knowledge was exchanged as non-threatening and highly useful. The fourth theme of ‘disturbance, shock and stress’ dealt with the effects of COVID19. The three groups were all affected by lockdown restrictions (at the time of data collection) and were initially cut off from their usual markets. This led to a loss of income, loss of farm staff and a loss of the desired growth of the farms. The group’s diverse farming practices bolstered their resilience, enabling them to adapt and try alternative marketing strategies. , Thesis (MSc) -- Faculty of Science, School of Natural Resource Management, 2023
- Full Text:
- Date Issued: 2023-04
Billing system, communication strategies, and organisation change in Zimbabwe: the case of telone customers’ postpaid to prepaid migration
- Authors: Dube, Sizalobuhle
- Date: 2023-04
- Subjects: Communication , Organizational change , Organizational change -- Management
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/27336 , vital:66942
- Description: This study investigated the effectiveness of the communication strategies used to implement the migration of telephone services from post-paid to prepaid billing at TelOne Zimbabwe. This study adopted the Freeman‟s stakeholder theory and the Lewin‟s change model to analyse the factors that influenced the effectiveness of the communication strategies used by TelOne before, during and after the change implementation as a way to communicate the initiative with its stakeholders. A qualitative approach was utilised and the key research methods used included document analysis, participant observation, as well as 21 face-to-face and 79 telephonic semi-structured interviews conducted with respondents from among TelOne managers, employees and the customers. The documents and respondents were purposively sampled based on the researcher‟s knowledge of their relevance in the study. The findings revealed several factors that mired effective change communication strategies such as company image, stakeholder recognition and communication centralisation. To curb these communication challenges, the study proposes Thrive organisational communication change model TOCC that encourages organisations to communicate the initiative to its relevant internal and external stakeholders considering their views and addressing factors that might hinder effective communication as a strategy to enhance successful change management. , Thesis (PhD) -- Faculty of Social Sciences and Humanities, 2023
- Full Text:
- Date Issued: 2023-04
- Authors: Dube, Sizalobuhle
- Date: 2023-04
- Subjects: Communication , Organizational change , Organizational change -- Management
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/27336 , vital:66942
- Description: This study investigated the effectiveness of the communication strategies used to implement the migration of telephone services from post-paid to prepaid billing at TelOne Zimbabwe. This study adopted the Freeman‟s stakeholder theory and the Lewin‟s change model to analyse the factors that influenced the effectiveness of the communication strategies used by TelOne before, during and after the change implementation as a way to communicate the initiative with its stakeholders. A qualitative approach was utilised and the key research methods used included document analysis, participant observation, as well as 21 face-to-face and 79 telephonic semi-structured interviews conducted with respondents from among TelOne managers, employees and the customers. The documents and respondents were purposively sampled based on the researcher‟s knowledge of their relevance in the study. The findings revealed several factors that mired effective change communication strategies such as company image, stakeholder recognition and communication centralisation. To curb these communication challenges, the study proposes Thrive organisational communication change model TOCC that encourages organisations to communicate the initiative to its relevant internal and external stakeholders considering their views and addressing factors that might hinder effective communication as a strategy to enhance successful change management. , Thesis (PhD) -- Faculty of Social Sciences and Humanities, 2023
- Full Text:
- Date Issued: 2023-04
Effect of a school-based health intervention on the non-communicable disease risk status of schoolchildren from disadvantaged communities
- Authors: Dolley, Danielle
- Date: 2023-04
- Subjects: school-based health intervention , Non-communicable diseases , Cardiovascular diseases
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/66388 , vital:75063
- Description: Background: Non-communicable diseases (NCDs) such as cardiovascular diseases (CVDs) and dyslipidaemia are a global public health concern, but more so in low- income countries where the underprivileged are exposed to unhealthy lifestyle practices with limited access to primary health care. Poor dietary habits and physical inactivity have also led to the unprecedented rise of NCD risk factors among school- aged children, which places them at greater risk of disease later in life. These NCDs are largely driven by obesity which has continued to rise in sub-Saharan Africa. However, high levels of undernutrition (such as stunting, underweight and wasting) among children are also present, thereby translating to a dual burden of malnutrition. Promoting regular physical activity (PA) among children is crucial for the health of future generations as it assists in weight reduction, improves insulin sensitivity, reduces blood pressure and is associated with good health and wellbeing. However, physical education (PE), the most obvious vehicle to develop the motor abilities of children, creating opportunities for their sports skills development and educating learners about the importance of PA as a lifestyle, has long been overlooked since the transformation of the South African school curriculum. Furthermore, many in-service PE teachers were not trained to teach the new multi-disciplinary Life Skills and Life Orientation subjects, of which PE forms a small part. Evidence shows that many PE teachers lack the content knowledge and practical skills to implement the subject, which raises the question of how many children, especially those in low-income communities, are participating in quality PE needed to foster healthy lifestyles and prevent the risk of NCDs. Therefore, this study aimed to investigate the effect of a 20- week school-based health intervention on NCD risk factors of primary schoolchildren from low-income schools in Gqeberha, South Africa. Methods: A cluster randomised control trial was used to test a 20-week intervention, which included three components, namely [1] the KaziKidz toolkit (comprised of pre- prepared PE, health, hygiene and nutrition lessons, equipment for PE, and painted games) [2] a PE coach (human movement science graduate to assist teachers) and [3]two 90-min training workshops. Eight schools were randomly selected to participatein the study: four intervention schools received the KaziKidz toolkit, while the externalsupport components were staggered across three intervention schools, and the Chapter 1: Introduction 2 remaining four schools served as the control group. Altogether 961 children (491 boys and 511 girls) from grades 4 to 6 (8 - 13 years old, M=10.88±1.19 yrs) participated In the study. Demographic information and socio-economic status were captured with a questionnaire. Further measures included height, weight, waist circumference, blood pressure, glycated haemoglobin, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, accelerometer-based PA and cardiorespiratory fitness (CRF). Results: Cross-sectional baseline data showed that 43.1% of the sample presented with at least one NCD risk factor, and 17% presented with an elevated clustered risk score (CRS). In addition, higher CRF and moderate to vigorous PA (MVPA) were associated with a lowered CRS whereby an elevated CRS was halved for every 49 min increase in MVPA (95% CI 27 - 224) or every 2.17 ml/kg/min increase in CRF, as determined via estimated VO2max (95% CI 1.66 - 3.12). Overall, 13% of the cohort were underweight, 12% overweight, 7% obese, and 64% engaged in an average of 60 min MVPA per day. The results also identified an inverse association between body mass index categories and the total duration of MVPA achieved per day as children categorised as underweight to normal‐weight (boys: OR = 3.89, 95% CI: 2.18 - 6.93; girls: OR =1.78, 95% CI: 1.13 - 2.80) were more likely to engage in 60 min per day of MVPA than overweight to obese children. Finally, the school-based health intervention results revealed improvements in children's NCD risk factors and increased MVPA levels when the intervention conditions included the workshops and, in some cases, the PE coach. The KaziKidz toolkit (on its own) showed little to no improvements in NCD risk factors and MVPA levels. Conclusion: School-based health interventions have the potential to improve the NCD risk factors of children attending low-income schools in South Africa. These findings also add to our understanding of implementing interventions in settings where teachers are not sufficiently trained to teach PE. Therefore, school-based health interventions, including a toolkit, should be accompanied by workshops to equip educators with the necessary tools to confidently facilitate PE lessons and integrate a range of PE activities into their classrooms. Future research is recommended to determine the long-term sustainability of school-based health interventions and the long-term post-intervention impact on NCD risk factors. , Thesis (PhD) -- Faculty of Health Science, Department of Human Movement Science, 2023
- Full Text:
- Date Issued: 2023-04
- Authors: Dolley, Danielle
- Date: 2023-04
- Subjects: school-based health intervention , Non-communicable diseases , Cardiovascular diseases
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/66388 , vital:75063
- Description: Background: Non-communicable diseases (NCDs) such as cardiovascular diseases (CVDs) and dyslipidaemia are a global public health concern, but more so in low- income countries where the underprivileged are exposed to unhealthy lifestyle practices with limited access to primary health care. Poor dietary habits and physical inactivity have also led to the unprecedented rise of NCD risk factors among school- aged children, which places them at greater risk of disease later in life. These NCDs are largely driven by obesity which has continued to rise in sub-Saharan Africa. However, high levels of undernutrition (such as stunting, underweight and wasting) among children are also present, thereby translating to a dual burden of malnutrition. Promoting regular physical activity (PA) among children is crucial for the health of future generations as it assists in weight reduction, improves insulin sensitivity, reduces blood pressure and is associated with good health and wellbeing. However, physical education (PE), the most obvious vehicle to develop the motor abilities of children, creating opportunities for their sports skills development and educating learners about the importance of PA as a lifestyle, has long been overlooked since the transformation of the South African school curriculum. Furthermore, many in-service PE teachers were not trained to teach the new multi-disciplinary Life Skills and Life Orientation subjects, of which PE forms a small part. Evidence shows that many PE teachers lack the content knowledge and practical skills to implement the subject, which raises the question of how many children, especially those in low-income communities, are participating in quality PE needed to foster healthy lifestyles and prevent the risk of NCDs. Therefore, this study aimed to investigate the effect of a 20- week school-based health intervention on NCD risk factors of primary schoolchildren from low-income schools in Gqeberha, South Africa. Methods: A cluster randomised control trial was used to test a 20-week intervention, which included three components, namely [1] the KaziKidz toolkit (comprised of pre- prepared PE, health, hygiene and nutrition lessons, equipment for PE, and painted games) [2] a PE coach (human movement science graduate to assist teachers) and [3]two 90-min training workshops. Eight schools were randomly selected to participatein the study: four intervention schools received the KaziKidz toolkit, while the externalsupport components were staggered across three intervention schools, and the Chapter 1: Introduction 2 remaining four schools served as the control group. Altogether 961 children (491 boys and 511 girls) from grades 4 to 6 (8 - 13 years old, M=10.88±1.19 yrs) participated In the study. Demographic information and socio-economic status were captured with a questionnaire. Further measures included height, weight, waist circumference, blood pressure, glycated haemoglobin, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, accelerometer-based PA and cardiorespiratory fitness (CRF). Results: Cross-sectional baseline data showed that 43.1% of the sample presented with at least one NCD risk factor, and 17% presented with an elevated clustered risk score (CRS). In addition, higher CRF and moderate to vigorous PA (MVPA) were associated with a lowered CRS whereby an elevated CRS was halved for every 49 min increase in MVPA (95% CI 27 - 224) or every 2.17 ml/kg/min increase in CRF, as determined via estimated VO2max (95% CI 1.66 - 3.12). Overall, 13% of the cohort were underweight, 12% overweight, 7% obese, and 64% engaged in an average of 60 min MVPA per day. The results also identified an inverse association between body mass index categories and the total duration of MVPA achieved per day as children categorised as underweight to normal‐weight (boys: OR = 3.89, 95% CI: 2.18 - 6.93; girls: OR =1.78, 95% CI: 1.13 - 2.80) were more likely to engage in 60 min per day of MVPA than overweight to obese children. Finally, the school-based health intervention results revealed improvements in children's NCD risk factors and increased MVPA levels when the intervention conditions included the workshops and, in some cases, the PE coach. The KaziKidz toolkit (on its own) showed little to no improvements in NCD risk factors and MVPA levels. Conclusion: School-based health interventions have the potential to improve the NCD risk factors of children attending low-income schools in South Africa. These findings also add to our understanding of implementing interventions in settings where teachers are not sufficiently trained to teach PE. Therefore, school-based health interventions, including a toolkit, should be accompanied by workshops to equip educators with the necessary tools to confidently facilitate PE lessons and integrate a range of PE activities into their classrooms. Future research is recommended to determine the long-term sustainability of school-based health interventions and the long-term post-intervention impact on NCD risk factors. , Thesis (PhD) -- Faculty of Health Science, Department of Human Movement Science, 2023
- Full Text:
- Date Issued: 2023-04
Evaluation of the toxicity of secondary metabolites in Solanum incanum L. to advance community knowledge
- Authors: Zivanayi, William
- Date: 2023-04
- Subjects: Solanum -- Zimbabwe , Pesticides -- Toxicology , Medicinal plants
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/61018 , vital:69686
- Description: The effects of pests and the need to produce adequate food have influenced small-scale farmers in disadvantaged communities to adopt and utilise natural plant pesticides to improve harvests in many Southern African Development Communities. However, the phytochemistry associated with these indigenous plants’ pesticide activity still needs to be explored. The lack of evidence of scientific knowledge of the plant species has caused a lot of health issues among the users of indigenous plant pesticides. Solanum incanum is among the plants utilised to control cabbage aphids in Mkoba village, Zimbabwe. Solanum species are known for their steroidal compounds which comprise glycoalkaloids and saponins. This study evaluated the knowledge, opinions, and attitudes of the vegetable peasant farming community in Gweru regarding their use of the indigenous plant (S. incanum) as a pesticide. The study also reported the phytochemical profiling, structural characterisation of the isolated compounds, and biological and pesticidal activity evaluation of phytochemicals isolated from S. incanum. A descriptive survey was carried out to assess the knowledge, attitude, and practices of a conveniently sampled group of vegetable farmers in Mkoba village who use S. incanum as a pesticide. Forty-nine respondents comprised of 19 males and 30 females of ages ranging from 15 to above 60 years took part in the study by answering an open and closed-ended questionnaire. The survey revealed that parents and neighbours were instrumental in disseminating pesticidal information in the community. Brassica napus were the most grown.vegetable and vulnerable to cabbage aphids. Mixed opinions amongst the respondents varied regarding the health and environmental impact of S. incanum as a pesticide. Seventy-five percent (75%) of the respondents supported the use of S. incanum as a pesticide whilst 25% claimed that the use of S. incanum was the source of the health problems experienced in the community. The survey demonstrated that (45)91% of the farmers displayed poor practices regarding the disposal of empty pesticide containers and the use of personal protective clothing. The most prevalent symptoms in the community were skin rash, nausea, headache, and poor vision and these symptoms were common in the age group 30 to 60 years. , Thesis (PhD) -- Faculty of Science, School of biomolecular and Chemical Sciences, 2023
- Full Text:
- Date Issued: 2023-04
- Authors: Zivanayi, William
- Date: 2023-04
- Subjects: Solanum -- Zimbabwe , Pesticides -- Toxicology , Medicinal plants
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/61018 , vital:69686
- Description: The effects of pests and the need to produce adequate food have influenced small-scale farmers in disadvantaged communities to adopt and utilise natural plant pesticides to improve harvests in many Southern African Development Communities. However, the phytochemistry associated with these indigenous plants’ pesticide activity still needs to be explored. The lack of evidence of scientific knowledge of the plant species has caused a lot of health issues among the users of indigenous plant pesticides. Solanum incanum is among the plants utilised to control cabbage aphids in Mkoba village, Zimbabwe. Solanum species are known for their steroidal compounds which comprise glycoalkaloids and saponins. This study evaluated the knowledge, opinions, and attitudes of the vegetable peasant farming community in Gweru regarding their use of the indigenous plant (S. incanum) as a pesticide. The study also reported the phytochemical profiling, structural characterisation of the isolated compounds, and biological and pesticidal activity evaluation of phytochemicals isolated from S. incanum. A descriptive survey was carried out to assess the knowledge, attitude, and practices of a conveniently sampled group of vegetable farmers in Mkoba village who use S. incanum as a pesticide. Forty-nine respondents comprised of 19 males and 30 females of ages ranging from 15 to above 60 years took part in the study by answering an open and closed-ended questionnaire. The survey revealed that parents and neighbours were instrumental in disseminating pesticidal information in the community. Brassica napus were the most grown.vegetable and vulnerable to cabbage aphids. Mixed opinions amongst the respondents varied regarding the health and environmental impact of S. incanum as a pesticide. Seventy-five percent (75%) of the respondents supported the use of S. incanum as a pesticide whilst 25% claimed that the use of S. incanum was the source of the health problems experienced in the community. The survey demonstrated that (45)91% of the farmers displayed poor practices regarding the disposal of empty pesticide containers and the use of personal protective clothing. The most prevalent symptoms in the community were skin rash, nausea, headache, and poor vision and these symptoms were common in the age group 30 to 60 years. , Thesis (PhD) -- Faculty of Science, School of biomolecular and Chemical Sciences, 2023
- Full Text:
- Date Issued: 2023-04
Experiences of youths participating in combination social protection and HIV prevention programme in resource constrained settings of Gauteng Province in South Africa: a collective case study design
- Authors: Zibengwa, Enock
- Date: 2023-04
- Subjects: HIV infections -- Prevention , HIV (Viruses) , HIV infections -- Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/27347 , vital:66944
- Description: South Africa continues to experience unacceptably high Human Immunodeficiency Virus HIV incidence rates among youths aged 15 to 24 years. Remarkably, this is despite the numerous youth HIV prevention programmes that have been implemented in the country. Unfortunately, the programmes have not significantly curbed the spread of HIV due to the partial and fragmented nature of their implementation. The programmes are also observed to be weak in addressing complex economic factors recognised as important structural drivers for vulnerabilities that put youths at risk of HIV infection. To address this challenge, there is increased adoption and implementation of the Combination Social Protection introduced in this research as the CSP by Non-Governmental Organisations NGOs. The CSP is a youth empowerment programming strategy whose critical foundations are entrenched in combining economic strengthening interventions and HIV prevention education. CSP could provide youths with a set of indispensable life skills that enhance their competencies and agency to make informed and effective decisions regarding their health and economic lives. Despite its growing traction, little is known regarding links between the CSP and its abilities to improve HIV prevention outcomes for youths. Given the paucity of research, this study aimed to explore the experiences of youths participating in the CSP and HIV prevention programme, with a particular focus on the resource-constrained settings of Gauteng Province in South Africa. This study employed a collective case study design, within the qualitative approach, and was exploratory. In-depth individual interviews were conducted with 30 youths from six established NGOs in the City of Johannesburg (CoJ). Qualitative thematic analysis was employed as a data analysis strategy. Focus groups were separately with six practitioners from the same six NGOs, and five officials from the Department of Social Development (DSD). Both phases of data collection were guided by interview themes, which were aligned with the objectives of the study. The findings of the study point to the fact that the CSP’s innovative and holistic approach offered numerous transformative and empowering benefits to youths. It equipped them with basic informational resources, capabilities, and social assets to safeguard their health and aid their economic advancement. The programme’s mixedgender sessions provided space, freedom, and support for youths to engage on issues of gender, differential access to health and socio-economic opportunities. Another major finding of the study was that improvement of economic aptitude (brought about by financial literacy education), employability, and entrepreneurship training stirred a sense of agency and purposefulness among youths, which in turn, prompted them to be more focused on achieving long-term objectives instead of indulging in risky sexual practices. Conversely, findings revealed that the programme had limited opportunities and did not create an adequate supportive environment for youths to develop successful entrepreneurial or income-generating projects. There was also no structure to assist youths to access apprenticeship and employment markets. The study specifically recognised that the programme’s efforts to develop youths’ entrepreneurship and employability capabilities were curtailed by a lack of mentorshipnand access to financial capital for start-up costs. With these findings in mind, recommendations are made for the creation of an enabling environment by purposefully engaging youths, establishing collaborative relations with communities, and building networks with businesses and financial institutions that can help youths with capital, mentorship, and linkages to internship and wage employment. Such collaborations could be fundamental in unravelling the impact of the programme on building livelihoods and reducing HIV among youths. Hence, this study proposes a model with strategies to support the successful implementation of economic strengthening interventions for youths. , Thesis (PhD) -- Faculty of Social Sciences and Humanities, 2023
- Full Text:
- Date Issued: 2023-04
- Authors: Zibengwa, Enock
- Date: 2023-04
- Subjects: HIV infections -- Prevention , HIV (Viruses) , HIV infections -- Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/27347 , vital:66944
- Description: South Africa continues to experience unacceptably high Human Immunodeficiency Virus HIV incidence rates among youths aged 15 to 24 years. Remarkably, this is despite the numerous youth HIV prevention programmes that have been implemented in the country. Unfortunately, the programmes have not significantly curbed the spread of HIV due to the partial and fragmented nature of their implementation. The programmes are also observed to be weak in addressing complex economic factors recognised as important structural drivers for vulnerabilities that put youths at risk of HIV infection. To address this challenge, there is increased adoption and implementation of the Combination Social Protection introduced in this research as the CSP by Non-Governmental Organisations NGOs. The CSP is a youth empowerment programming strategy whose critical foundations are entrenched in combining economic strengthening interventions and HIV prevention education. CSP could provide youths with a set of indispensable life skills that enhance their competencies and agency to make informed and effective decisions regarding their health and economic lives. Despite its growing traction, little is known regarding links between the CSP and its abilities to improve HIV prevention outcomes for youths. Given the paucity of research, this study aimed to explore the experiences of youths participating in the CSP and HIV prevention programme, with a particular focus on the resource-constrained settings of Gauteng Province in South Africa. This study employed a collective case study design, within the qualitative approach, and was exploratory. In-depth individual interviews were conducted with 30 youths from six established NGOs in the City of Johannesburg (CoJ). Qualitative thematic analysis was employed as a data analysis strategy. Focus groups were separately with six practitioners from the same six NGOs, and five officials from the Department of Social Development (DSD). Both phases of data collection were guided by interview themes, which were aligned with the objectives of the study. The findings of the study point to the fact that the CSP’s innovative and holistic approach offered numerous transformative and empowering benefits to youths. It equipped them with basic informational resources, capabilities, and social assets to safeguard their health and aid their economic advancement. The programme’s mixedgender sessions provided space, freedom, and support for youths to engage on issues of gender, differential access to health and socio-economic opportunities. Another major finding of the study was that improvement of economic aptitude (brought about by financial literacy education), employability, and entrepreneurship training stirred a sense of agency and purposefulness among youths, which in turn, prompted them to be more focused on achieving long-term objectives instead of indulging in risky sexual practices. Conversely, findings revealed that the programme had limited opportunities and did not create an adequate supportive environment for youths to develop successful entrepreneurial or income-generating projects. There was also no structure to assist youths to access apprenticeship and employment markets. The study specifically recognised that the programme’s efforts to develop youths’ entrepreneurship and employability capabilities were curtailed by a lack of mentorshipnand access to financial capital for start-up costs. With these findings in mind, recommendations are made for the creation of an enabling environment by purposefully engaging youths, establishing collaborative relations with communities, and building networks with businesses and financial institutions that can help youths with capital, mentorship, and linkages to internship and wage employment. Such collaborations could be fundamental in unravelling the impact of the programme on building livelihoods and reducing HIV among youths. Hence, this study proposes a model with strategies to support the successful implementation of economic strengthening interventions for youths. , Thesis (PhD) -- Faculty of Social Sciences and Humanities, 2023
- Full Text:
- Date Issued: 2023-04
Integration of digital media and pedagogy in the twenty first century classroom: a survey of selected high schools in Eastern Cape, South Africa
- Authors: Mhlomi, Yolisa
- Date: 2023-04
- Subjects: Teaching , Digital media , Classroom learning centers
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/27369 , vital:66952
- Description: The essence of this thesis was to study the effectiveness of integrating digital media technologies within the pedagogical approaches adopted and implemented in private and public high schools in a comparative manner. The study looked closely at private and public high schools of the Eastern Cape Province, to study the gaps of accessibility to technology by schools. The study identified the Eastern Cape Province as having a problem of poor performance in matric results at the end of each year as compared to other South African provinces. In order to select the relevant sample for the study, the researcher has utilized two secondary schools private and public in Makhanda Grahamstown and one public secondary school in Alice. The pragmatic paradigm was used to inform the study and used the mixed methods approach to data collection. The researcher distributed closed ended questionnaires to the learners in the three selected secondary schools and semi-structured interviews for the principals of the schools. The key findings reveal that the digital media tools are used for the teaching and learning purposes as well as communication to the schools’ stakeholders. The findings also revealed that various online platforms are utilized for teaching and sharing of information. For example, D6 and Ibambisa School Communicator app, WhatsApp groups for learners, Facebook, Instagram and School website for potential stakeholders. Hence, the results of this study should contribute to the field of ICTs and education in the country to solve the problems facing the teaching and learning systems of private and public schools of the Eastern Cape. Most schools (especially the public) do not have access to digital media tools in their classrooms. Thus, they still depend heavily on the textbooks, which may be outdated or not enough for all learners. In response to the issues faced by the Eastern Cape secondary schools and the findings, the researcher has suggested a model named the Digital Media and Pedagogy Integration DMPI Model of Communication. This model will contribute to the body of knowledge by providing advice to the Department of Basic Education on how teachers and learners can utilize digital media tools effectively. Also, the study has recommended that there is a need for provision of computer literacy training for teachers in secondary schools in this digital age. , Thesis (PhD) -- Faculty of Social Sciences and Humanities, 2023
- Full Text:
- Date Issued: 2023-04
- Authors: Mhlomi, Yolisa
- Date: 2023-04
- Subjects: Teaching , Digital media , Classroom learning centers
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/27369 , vital:66952
- Description: The essence of this thesis was to study the effectiveness of integrating digital media technologies within the pedagogical approaches adopted and implemented in private and public high schools in a comparative manner. The study looked closely at private and public high schools of the Eastern Cape Province, to study the gaps of accessibility to technology by schools. The study identified the Eastern Cape Province as having a problem of poor performance in matric results at the end of each year as compared to other South African provinces. In order to select the relevant sample for the study, the researcher has utilized two secondary schools private and public in Makhanda Grahamstown and one public secondary school in Alice. The pragmatic paradigm was used to inform the study and used the mixed methods approach to data collection. The researcher distributed closed ended questionnaires to the learners in the three selected secondary schools and semi-structured interviews for the principals of the schools. The key findings reveal that the digital media tools are used for the teaching and learning purposes as well as communication to the schools’ stakeholders. The findings also revealed that various online platforms are utilized for teaching and sharing of information. For example, D6 and Ibambisa School Communicator app, WhatsApp groups for learners, Facebook, Instagram and School website for potential stakeholders. Hence, the results of this study should contribute to the field of ICTs and education in the country to solve the problems facing the teaching and learning systems of private and public schools of the Eastern Cape. Most schools (especially the public) do not have access to digital media tools in their classrooms. Thus, they still depend heavily on the textbooks, which may be outdated or not enough for all learners. In response to the issues faced by the Eastern Cape secondary schools and the findings, the researcher has suggested a model named the Digital Media and Pedagogy Integration DMPI Model of Communication. This model will contribute to the body of knowledge by providing advice to the Department of Basic Education on how teachers and learners can utilize digital media tools effectively. Also, the study has recommended that there is a need for provision of computer literacy training for teachers in secondary schools in this digital age. , Thesis (PhD) -- Faculty of Social Sciences and Humanities, 2023
- Full Text:
- Date Issued: 2023-04