Soil and vegetation recovery following Acacia dealbata clearing in the Tsitsa catchment, Eastern Cape Province of South Africa: implications for ecological restoration
- Authors: Balintulo, Putuma
- Date: 2022-04-06
- Subjects: Acacia South Africa Eastern Cape , Invasive plants South Africa Eastern Cape , Working for Water Programme , Soil restoration South Africa Eastern Cape , Plant nutrients South Africa Eastern Cape , Restoration ecology South Africa Eastern Cape , Clearing of land South Africa Eastern Cape , Legacy effect
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/290778 , vital:56783
- Description: Invasion by alien plant species in South Africa continues to compromise the stability of ecosystems by causing declines in biodiversity, altering soil nutrients and processes, and subsequently transforming ecosystem functionality. Control of invasive alien plant species has been widely implemented in South Africa to minimize their negative impacts; however, the legacy effects can persist long after the plant has been removed. The impacts of Acacia dealbata clearing on soil properties and native vegetation recovery remains understudied despite their significance in ecological restoration and monitoring. This comparative study determined the impacts of A. dealbata clearing on both soil physicochemical properties and vegetation in the Eastern Cape Province of South Africa. Soils were collected from three different clearing treatments, namely, cleared, invaded, and uninvaded, on 5 m x 5 m plots over three summer months. The plots were replicated four times for each clearing treatment, making a total of 72 sampling plots. Soils were assessed for soil pH, resistivity, P, C, N, and exchangeable cations as well as soil moisture content, penetration resistance, infiltration rate, hydraulic conductivity, and water repellency. Clearing of A. dealbata did not have any significant effects on most soil nutrients, however, there were variations in soil pH, resistance, and Na. Soil pH was significantly higher in the uninvaded treatments than in the cleared and invaded treatments. Soil moisture content was significantly higher in the cleared treatments than the adjacent invaded and uninvaded treatments, but this was observed in the month of December only. Soil penetration resistance and infiltration rates were significantly higher in the month of December in the cleared treatments. For all clearing treatments, no significant differences were recorded for soil hydraulic conductivity. These results on changes in soil properties following A. dealbata clearing are varied, with some soil properties showing decreases, an indication that removal of A. dealbata has the potential to shift soil properties towards a positive recovery trajectory. This study further assessed whether the clearing of A. dealbata facilitates the recovery of native plant species. Vegetation surveys were conducted in the three above-mentioned treatments and plots. Results showed little recruitment of native grasses and forbs, but the persistence of A. dealbata seedlings in the cleared treatments. Species richness and Shannon-Wiener diversity index were significantly (P < 0.05) higher in the cleared and invaded treatments than the uninvaded treatments, and this was more visible for trees and shrubs. Cover for all species was significantly higher (P < 0.05) in the uninvaded than the cleared and invaded treatments. This study observed the recruitment of some native species in the cleared treatments that were not present in the invaded treatments. Therefore, the recruitment and establishment of some native species, mostly grasses, in the cleared treatments gives assurance that passive restoration is on a positive vegetation recovery trajectory that can lead to recovery of native vegetation after A. dealbata clearing. Therefore, the study concludes that investing in ecological restoration after alien plant clearing is a necessity for complete ecosystem recovery to be achieved. Overall, the study concludes that the removal of A. dealbata triggers changes to some soil properties. Similarly, the study observed recruitment of some native grasses in cleared areas, an indication that alien plant clearing facilitates changes in both soil properties and vegetation. However, soil and vegetation recovery are being hampered by the regrowth of A. dealbata and secondary invaders that were observed in the cleared treatments. Two key recommendations of this study are (i) clearing follow-up to remove recruiting seedlings of invasive plant species and secondary invaders should be timeous and well-funded, and (ii) active restoration should be considered to speed-up soil and vegetation recovery processes. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2022
- Full Text:
- Authors: Balintulo, Putuma
- Date: 2022-04-06
- Subjects: Acacia South Africa Eastern Cape , Invasive plants South Africa Eastern Cape , Working for Water Programme , Soil restoration South Africa Eastern Cape , Plant nutrients South Africa Eastern Cape , Restoration ecology South Africa Eastern Cape , Clearing of land South Africa Eastern Cape , Legacy effect
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/290778 , vital:56783
- Description: Invasion by alien plant species in South Africa continues to compromise the stability of ecosystems by causing declines in biodiversity, altering soil nutrients and processes, and subsequently transforming ecosystem functionality. Control of invasive alien plant species has been widely implemented in South Africa to minimize their negative impacts; however, the legacy effects can persist long after the plant has been removed. The impacts of Acacia dealbata clearing on soil properties and native vegetation recovery remains understudied despite their significance in ecological restoration and monitoring. This comparative study determined the impacts of A. dealbata clearing on both soil physicochemical properties and vegetation in the Eastern Cape Province of South Africa. Soils were collected from three different clearing treatments, namely, cleared, invaded, and uninvaded, on 5 m x 5 m plots over three summer months. The plots were replicated four times for each clearing treatment, making a total of 72 sampling plots. Soils were assessed for soil pH, resistivity, P, C, N, and exchangeable cations as well as soil moisture content, penetration resistance, infiltration rate, hydraulic conductivity, and water repellency. Clearing of A. dealbata did not have any significant effects on most soil nutrients, however, there were variations in soil pH, resistance, and Na. Soil pH was significantly higher in the uninvaded treatments than in the cleared and invaded treatments. Soil moisture content was significantly higher in the cleared treatments than the adjacent invaded and uninvaded treatments, but this was observed in the month of December only. Soil penetration resistance and infiltration rates were significantly higher in the month of December in the cleared treatments. For all clearing treatments, no significant differences were recorded for soil hydraulic conductivity. These results on changes in soil properties following A. dealbata clearing are varied, with some soil properties showing decreases, an indication that removal of A. dealbata has the potential to shift soil properties towards a positive recovery trajectory. This study further assessed whether the clearing of A. dealbata facilitates the recovery of native plant species. Vegetation surveys were conducted in the three above-mentioned treatments and plots. Results showed little recruitment of native grasses and forbs, but the persistence of A. dealbata seedlings in the cleared treatments. Species richness and Shannon-Wiener diversity index were significantly (P < 0.05) higher in the cleared and invaded treatments than the uninvaded treatments, and this was more visible for trees and shrubs. Cover for all species was significantly higher (P < 0.05) in the uninvaded than the cleared and invaded treatments. This study observed the recruitment of some native species in the cleared treatments that were not present in the invaded treatments. Therefore, the recruitment and establishment of some native species, mostly grasses, in the cleared treatments gives assurance that passive restoration is on a positive vegetation recovery trajectory that can lead to recovery of native vegetation after A. dealbata clearing. Therefore, the study concludes that investing in ecological restoration after alien plant clearing is a necessity for complete ecosystem recovery to be achieved. Overall, the study concludes that the removal of A. dealbata triggers changes to some soil properties. Similarly, the study observed recruitment of some native grasses in cleared areas, an indication that alien plant clearing facilitates changes in both soil properties and vegetation. However, soil and vegetation recovery are being hampered by the regrowth of A. dealbata and secondary invaders that were observed in the cleared treatments. Two key recommendations of this study are (i) clearing follow-up to remove recruiting seedlings of invasive plant species and secondary invaders should be timeous and well-funded, and (ii) active restoration should be considered to speed-up soil and vegetation recovery processes. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2022
- Full Text:
Exploration of remote work and wellbeing of academics in a South African tertiary institution
- Authors: Chikutu, Michelle
- Date: 2022-10-14
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/405963 , vital:70223
- Description: Thesis embargoed. To be released in 2024. , Thesis (MA) -- Faculty of Humanities, Psychology, 2022
- Full Text:
- Authors: Chikutu, Michelle
- Date: 2022-10-14
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/405963 , vital:70223
- Description: Thesis embargoed. To be released in 2024. , Thesis (MA) -- Faculty of Humanities, Psychology, 2022
- Full Text:
Orthographic knowledge in isiXhosa and its relation to phonological processing, letter-sound knowledge, reading and spelling
- Authors: Daries, Mikaela Ann
- Date: 2022-10-14
- Subjects: Xhosa language Orthography and spelling , Phonological awareness , Psycholinguistics , Oral reading Usage , Literacy South Africa , Reading Phonetic method
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/406703 , vital:70300
- Description: Despite international research confirming its importance, writing and related metalinguistic skills have often been neglected in comparison to reading in literacy research (Cunningham et al., 2001; Castles & Coltheart, 2004; Nag, 2007; Roman et al., 2009; Zhao et al., 2017). On a national level there are very few studies that have explored the writing aspect of literacy in South Africa, and none that has investigated orthographic knowledge in a Southern Bantu language, such as isiXhosa. In an attempt to address this gap, this thesis explores orthographic knowledge and its components in isiXhosa. In particular, it seeks to investigate the unique predictors of word specific and general orthographic knowledge as well as their role for reading and spelling in isiXhosa while controlling for phonological awareness (PA), rapid automatized naming (RAN), and letter-sound knowledge. Furthermore, the thesis attempts to situate its findings within the main premises of the self-teaching hypothesis and dual route approach to orthographic processing in order to contribute to linguistic theories of reading with cross-linguistic evidence (Jorm & Share, 1983; Share & Jorm, 1987; Share, 1995; Grainger & Ziegler, 2011). A quantitative cross-sectional study was conducted with 140 isiXhosa home language third grade learners in which word specific and general orthographic knowledge tasks were specifically designed. These tasks were administered along with oral reading fluency (ORF), spelling, PA, RAN, and letter-sound knowledge. The findings revealed that letter-sound knowledge and PA contributed the largest variance towards both word specific and general orthographic knowledge. Further, word specific orthographic knowledge and letter-sound knowledge were the only significant predictors of spelling. Similarly, both word specific and letter-sound knowledge were significant predictors of reading, along with RAN and general orthographic knowledge. Quantile linear regression analyses revealed that word specific orthographic knowledge was a robust predictor of spelling and letter-sound knowledge was a robust predictor of reading across ability levels confirming the importance for word specific orthographic knowledge for spelling and letter-sound knowledge for reading in isiXhosa. In relation to the two reading theories considered in this thesis, the findings reflect similarities between the assertions of the self-teaching hypothesis and current thesis with suggestions made for further inquiry. The dual route approach to orthographic processing provides insights into the potential processing of orthographic information while reading in isiXhosa. The findings of this study confirm the importance of orthographic knowledge for reading and spelling for languages with transparent orthographies such as isiXhosa. , Thesis (MA) -- Faculty of Humanities, Linguistics and Applied Language Studies, 2022
- Full Text:
- Authors: Daries, Mikaela Ann
- Date: 2022-10-14
- Subjects: Xhosa language Orthography and spelling , Phonological awareness , Psycholinguistics , Oral reading Usage , Literacy South Africa , Reading Phonetic method
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/406703 , vital:70300
- Description: Despite international research confirming its importance, writing and related metalinguistic skills have often been neglected in comparison to reading in literacy research (Cunningham et al., 2001; Castles & Coltheart, 2004; Nag, 2007; Roman et al., 2009; Zhao et al., 2017). On a national level there are very few studies that have explored the writing aspect of literacy in South Africa, and none that has investigated orthographic knowledge in a Southern Bantu language, such as isiXhosa. In an attempt to address this gap, this thesis explores orthographic knowledge and its components in isiXhosa. In particular, it seeks to investigate the unique predictors of word specific and general orthographic knowledge as well as their role for reading and spelling in isiXhosa while controlling for phonological awareness (PA), rapid automatized naming (RAN), and letter-sound knowledge. Furthermore, the thesis attempts to situate its findings within the main premises of the self-teaching hypothesis and dual route approach to orthographic processing in order to contribute to linguistic theories of reading with cross-linguistic evidence (Jorm & Share, 1983; Share & Jorm, 1987; Share, 1995; Grainger & Ziegler, 2011). A quantitative cross-sectional study was conducted with 140 isiXhosa home language third grade learners in which word specific and general orthographic knowledge tasks were specifically designed. These tasks were administered along with oral reading fluency (ORF), spelling, PA, RAN, and letter-sound knowledge. The findings revealed that letter-sound knowledge and PA contributed the largest variance towards both word specific and general orthographic knowledge. Further, word specific orthographic knowledge and letter-sound knowledge were the only significant predictors of spelling. Similarly, both word specific and letter-sound knowledge were significant predictors of reading, along with RAN and general orthographic knowledge. Quantile linear regression analyses revealed that word specific orthographic knowledge was a robust predictor of spelling and letter-sound knowledge was a robust predictor of reading across ability levels confirming the importance for word specific orthographic knowledge for spelling and letter-sound knowledge for reading in isiXhosa. In relation to the two reading theories considered in this thesis, the findings reflect similarities between the assertions of the self-teaching hypothesis and current thesis with suggestions made for further inquiry. The dual route approach to orthographic processing provides insights into the potential processing of orthographic information while reading in isiXhosa. The findings of this study confirm the importance of orthographic knowledge for reading and spelling for languages with transparent orthographies such as isiXhosa. , Thesis (MA) -- Faculty of Humanities, Linguistics and Applied Language Studies, 2022
- Full Text:
Chinese character learning with the aid of an ICT website among Mandarin Second Additional Language learners in South Africa: a case study
- Authors: Fu, Shuying
- Date: 2022-04-08
- Subjects: Mandarin dialects Study and teaching (Secondary) South Africa , Mandarin dialects Computer-assisted instruction for English speakers , Second language acquisition , Chinese characters , Information technology South Africa , Educational technology South Africa , Arch Chinese
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/263590 , vital:53641
- Description: The teaching of Mandarin as a Second Additional Language (SAL) in South African schools was only introduced in 2016. The year 2018 saw the first Mandarin as SAL National Senior Certificate examination. Little research has been done on the teaching and learning of Mandarin as a SAL subject at the high school level in South Africa. Character learning and teaching are some of the most challenging aspects of this language teaching and learning. This research sought to investigate how beginner Mandarin SAL learners can be supported by a particular Information Communication Technology (ICT) website, www.archchinese.com (Arch Chinese), in their character learning. Learners’ ability to memorise Chinese characters is of utmost importance for their success in this language learning, especially for matriculants. To support the main research goal, this study set out to investigate the requirements for Chinese character learning, the role the website Arch Chinese plays in learners’ character learning and Mandarin SAL learners’ experience of using Arch Chinese as a learning tool. This research was conducted in the form of a case study within the interpretative paradigm. It adopted a questionnaire and document analysis for data collection to gain insight into the research topic. To get answers to the research questions posed above, the study analysed the Curriculum Assessment Policy Statement (CAPS) Mandarin SAL documents from Grade 4–12, the Independent Examination Board (IEB) Mandarin Subject Assessment Guidelines (SAGs), and a textbook for beginners, Learn Chinese with me: Student’s book 1 in relation to character learning. The features and functions of the website, Arch Chinese, were also evaluated and Mandarin SAL learners’ answers to a questionnaire on their use of the website Arch Chinese were analysed. The study found that character teaching and learning has not been given enough attention in the curriculum. It was only covered in the Intermediate Phase but was seldom mentioned in the Senior and Further Education and Training Phases in the curriculum. The CAPS Mandarin SAL documents do not consider the special characteristics of the Mandarin language, as this curriculum was based on the CAPS English Generic SAL document. As a result, the assessment requirements on writing (character count requirement in particular) were not realistic. The teaching approaches promoted in the curriculum and the teaching time do not correspond well with the teaching and learning of this language. Moreover, this study found that there was no vocabulary list prescribed in the curriculum and therefore a gap exists between the curriculum on paper and the curriculum in practice. The analysis of the IEB SAGs found that the assessments were suitable for the level of Mandarin SAL learners. This is because the IEB considered the characteristics of the Mandarin language, which is non-cognate, to the alphabet-based languages that respondents in this research spoke or were familiar with. At the same time, the analysis of the website and the learners’ questionnaire found that learners held a positive attitude towards their use of the website and that it proved to help facilitate Mandarin SAL learners in their character learning. This study ends with recommendations for teachers, policy makers, the IEB, and character-learning websites. , Thesis (MEd) -- Faculty of Education, Education, 2022
- Full Text: false
- Authors: Fu, Shuying
- Date: 2022-04-08
- Subjects: Mandarin dialects Study and teaching (Secondary) South Africa , Mandarin dialects Computer-assisted instruction for English speakers , Second language acquisition , Chinese characters , Information technology South Africa , Educational technology South Africa , Arch Chinese
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/263590 , vital:53641
- Description: The teaching of Mandarin as a Second Additional Language (SAL) in South African schools was only introduced in 2016. The year 2018 saw the first Mandarin as SAL National Senior Certificate examination. Little research has been done on the teaching and learning of Mandarin as a SAL subject at the high school level in South Africa. Character learning and teaching are some of the most challenging aspects of this language teaching and learning. This research sought to investigate how beginner Mandarin SAL learners can be supported by a particular Information Communication Technology (ICT) website, www.archchinese.com (Arch Chinese), in their character learning. Learners’ ability to memorise Chinese characters is of utmost importance for their success in this language learning, especially for matriculants. To support the main research goal, this study set out to investigate the requirements for Chinese character learning, the role the website Arch Chinese plays in learners’ character learning and Mandarin SAL learners’ experience of using Arch Chinese as a learning tool. This research was conducted in the form of a case study within the interpretative paradigm. It adopted a questionnaire and document analysis for data collection to gain insight into the research topic. To get answers to the research questions posed above, the study analysed the Curriculum Assessment Policy Statement (CAPS) Mandarin SAL documents from Grade 4–12, the Independent Examination Board (IEB) Mandarin Subject Assessment Guidelines (SAGs), and a textbook for beginners, Learn Chinese with me: Student’s book 1 in relation to character learning. The features and functions of the website, Arch Chinese, were also evaluated and Mandarin SAL learners’ answers to a questionnaire on their use of the website Arch Chinese were analysed. The study found that character teaching and learning has not been given enough attention in the curriculum. It was only covered in the Intermediate Phase but was seldom mentioned in the Senior and Further Education and Training Phases in the curriculum. The CAPS Mandarin SAL documents do not consider the special characteristics of the Mandarin language, as this curriculum was based on the CAPS English Generic SAL document. As a result, the assessment requirements on writing (character count requirement in particular) were not realistic. The teaching approaches promoted in the curriculum and the teaching time do not correspond well with the teaching and learning of this language. Moreover, this study found that there was no vocabulary list prescribed in the curriculum and therefore a gap exists between the curriculum on paper and the curriculum in practice. The analysis of the IEB SAGs found that the assessments were suitable for the level of Mandarin SAL learners. This is because the IEB considered the characteristics of the Mandarin language, which is non-cognate, to the alphabet-based languages that respondents in this research spoke or were familiar with. At the same time, the analysis of the website and the learners’ questionnaire found that learners held a positive attitude towards their use of the website and that it proved to help facilitate Mandarin SAL learners in their character learning. This study ends with recommendations for teachers, policy makers, the IEB, and character-learning websites. , Thesis (MEd) -- Faculty of Education, Education, 2022
- Full Text: false
Inadequate menstrual health management and human rights
- Authors: Hartley, Gemma-Maé
- Date: 2022-10-14
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/422506 , vital:71953
- Description: Various human rights bodies have suggested that Inadequate Menstrual Health Management (MHM) could contribute to violations of human rights or, at the very least, is connected to the fulfilment of human rights. Despite recognition of this, there has not been thorough analysis of whether inadequate MHM is a violation of human rights, particularly in political discussions on the philosophy of human rights. Using a liberal cosmopolitan framework, this thesis attempts to bridge this gap and, ultimately, to argue that inadequate MHM constitutes a violation of human rights. This assertion brings with it various complications due to the heavily contested nature of human rights, their correlative duties, and the requirements for a lack of fulfilment to be considered a violation. I address each complication in turn. I argue that the traditional approach to human rights violations fails to consider the various ways that human rights are violated in our contemporary, globalised world. I suggest that structural violations of human rights should not be ruled out, particularly when we consider severe poverty and its by-products. Ultimately, the question of inadequate MHM is concerned with the content of human rights. If inadequate MHM were a violation, it would be a violation of women’s socio-economic rights. However, both group rights and socio-economic rights are contested. This thesis therefore justifies these rights. Group-differentiated rights are argued to be necessary for substantive equality. This is particularly the case when we consider the various risks women face simply because they are women. Women therefore need special protections and provisions for their human rights to be fulfilled. Socio-economic rights are necessary for the well-being and dignity of individuals everywhere. We can justify them even if they are costly, vague, and demanding on states, as critics argue they are. Therefore, if we can accept socio-economic rights and women’s rights, we can argue that inadequate MHM is a structural violation of human rights. Thinking about inadequate MHM in this way means we can respond to it with a level of urgency. This has the potential to improve the well-being, development, and dignity of women. , Thesis (MA) -- Faculty of Humanities, Political and International Studies, 2023
- Full Text:
- Authors: Hartley, Gemma-Maé
- Date: 2022-10-14
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/422506 , vital:71953
- Description: Various human rights bodies have suggested that Inadequate Menstrual Health Management (MHM) could contribute to violations of human rights or, at the very least, is connected to the fulfilment of human rights. Despite recognition of this, there has not been thorough analysis of whether inadequate MHM is a violation of human rights, particularly in political discussions on the philosophy of human rights. Using a liberal cosmopolitan framework, this thesis attempts to bridge this gap and, ultimately, to argue that inadequate MHM constitutes a violation of human rights. This assertion brings with it various complications due to the heavily contested nature of human rights, their correlative duties, and the requirements for a lack of fulfilment to be considered a violation. I address each complication in turn. I argue that the traditional approach to human rights violations fails to consider the various ways that human rights are violated in our contemporary, globalised world. I suggest that structural violations of human rights should not be ruled out, particularly when we consider severe poverty and its by-products. Ultimately, the question of inadequate MHM is concerned with the content of human rights. If inadequate MHM were a violation, it would be a violation of women’s socio-economic rights. However, both group rights and socio-economic rights are contested. This thesis therefore justifies these rights. Group-differentiated rights are argued to be necessary for substantive equality. This is particularly the case when we consider the various risks women face simply because they are women. Women therefore need special protections and provisions for their human rights to be fulfilled. Socio-economic rights are necessary for the well-being and dignity of individuals everywhere. We can justify them even if they are costly, vague, and demanding on states, as critics argue they are. Therefore, if we can accept socio-economic rights and women’s rights, we can argue that inadequate MHM is a structural violation of human rights. Thinking about inadequate MHM in this way means we can respond to it with a level of urgency. This has the potential to improve the well-being, development, and dignity of women. , Thesis (MA) -- Faculty of Humanities, Political and International Studies, 2023
- Full Text:
Bioethical analysis of COVID19, WASH/waste and related disaster management implications
- Authors: Iheanetu, Chidinma Uchenna
- Date: 2022-04-06
- Subjects: Uncatalogued
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/232250 , vital:49975
- Description: Thesis (MSc) -- Faculty of Science, Biotechnology Innovation Centre, 2022
- Full Text:
- Authors: Iheanetu, Chidinma Uchenna
- Date: 2022-04-06
- Subjects: Uncatalogued
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/232250 , vital:49975
- Description: Thesis (MSc) -- Faculty of Science, Biotechnology Innovation Centre, 2022
- Full Text:
A multimodal analysis of the representation of voter disillusionment in social media memes distributed on Twitter in the lead up to the 2019 South African general election
- Authors: Jeftha, Courtney Alexandra
- Date: 2022-10-14
- Subjects: Elections South Africa 21st century , Culture Study and teaching South Africa , Mass media Study and teaching South Africa , Social media South Africa , Memes South Africa , Visual sociology , Textual Analysis , Critical discourse analysis , Modality (Linguistics)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/405930 , vital:70220
- Description: This study is situated in the context of the 2019 South African general election, which saw the lowest voter turnout since its first democratic election in 1994. Many have questioned the capabilities of the African National Congress (ANC) since they came into power in 1994, due to allegations of corruption, maladministration and poor leadership. The concerns about the party’s ability to manage the country’s various social issues have led to a drop in voter turnout. There was much discussion in the media about the lack of voter turnout amongst young people in South Africa. This topic became a trending topic on social media under the #iwanttovotebut hashtag. The sentiments expressed by South African Twitter users in the #iwanttovotebut memes are explored in this study. The analysis of the memes draws on the works of Kress and van Leeuwen’s (1996; 2006) visual social semiotics, Fairclough’s (1989) approach to Critical discourse analysis (CDA), and Thompson’s operation of ideologies. VSS allows for the description of the various semiotic resources that memers use to construct their meaning from multimodal texts. The tools provided by CDA go beyond the description of VSS and develop a more detailed analysis of how the memers construct their discourses of democracy/governance. Thompson’s (1991) approach to understanding how ideology operates in language enables the deepening of the understanding of the dominant and naturalised notions of democracy/governance. The findings indicate that memers have a limited understanding of democracy. They also have a limited understanding of how political parties operate and their responsibilities in the form of government and various agencies. In addition, it is not surprising that young people are not voting in the 2019 general election. This is a phenomenon that the media has characterized as “apathy.” However, this research indicates that it would be more accurate to describe it as “disillusionment.” , Thesis (MA) -- Faculty of Humanities, School of Journalism and Media Studies, 2022
- Full Text:
- Authors: Jeftha, Courtney Alexandra
- Date: 2022-10-14
- Subjects: Elections South Africa 21st century , Culture Study and teaching South Africa , Mass media Study and teaching South Africa , Social media South Africa , Memes South Africa , Visual sociology , Textual Analysis , Critical discourse analysis , Modality (Linguistics)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/405930 , vital:70220
- Description: This study is situated in the context of the 2019 South African general election, which saw the lowest voter turnout since its first democratic election in 1994. Many have questioned the capabilities of the African National Congress (ANC) since they came into power in 1994, due to allegations of corruption, maladministration and poor leadership. The concerns about the party’s ability to manage the country’s various social issues have led to a drop in voter turnout. There was much discussion in the media about the lack of voter turnout amongst young people in South Africa. This topic became a trending topic on social media under the #iwanttovotebut hashtag. The sentiments expressed by South African Twitter users in the #iwanttovotebut memes are explored in this study. The analysis of the memes draws on the works of Kress and van Leeuwen’s (1996; 2006) visual social semiotics, Fairclough’s (1989) approach to Critical discourse analysis (CDA), and Thompson’s operation of ideologies. VSS allows for the description of the various semiotic resources that memers use to construct their meaning from multimodal texts. The tools provided by CDA go beyond the description of VSS and develop a more detailed analysis of how the memers construct their discourses of democracy/governance. Thompson’s (1991) approach to understanding how ideology operates in language enables the deepening of the understanding of the dominant and naturalised notions of democracy/governance. The findings indicate that memers have a limited understanding of democracy. They also have a limited understanding of how political parties operate and their responsibilities in the form of government and various agencies. In addition, it is not surprising that young people are not voting in the 2019 general election. This is a phenomenon that the media has characterized as “apathy.” However, this research indicates that it would be more accurate to describe it as “disillusionment.” , Thesis (MA) -- Faculty of Humanities, School of Journalism and Media Studies, 2022
- Full Text:
The relationship between economic growth and taxation: an empirical study on optimal taxation in sub-Saharan Africa
- Authors: Kent, Bradley Athol
- Date: 2022-10-14
- Subjects: Taxation Africa, Sub-Saharan , Optimal tax , Economic development Africa, Sub-Saharan , Tax collection Africa, Sub-Saharan
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/403058 , vital:69918
- Description: The relationship between economic growth and taxation is a complex and highly debated issue, this thesis investigates whether a significant relationship can be identified, and whether it is the level that truly matters for fiscal policies aimed at being growth enhancing. Further investigation examines this relationship, in addition to testing whether there is a threshold below which tax collection may be considered ‘growth-enhancing’, and above which is negative for economic growth, and if such a threshold exists, to identify the manner in which taxation negatively impacts economic growth. The study makes use of a panel data approach to autoregressive distributed lag modelling and a generalised least squares regression. The study focuses on a panel data sample for seven (7) countries within Sub-Saharan Africa (SSA) between 1997 – 2017. It found that total tax revenue held a positive and significant relationship with economic growth at the SSA level, whilst at the individual tax level; PAYE and property taxes were found to have a negative influence on growth, with no other fiscal variables significantly influencing growth in the long run in SSA test. Whereas, when analysing at the country-specific level it was found PAYE was only significantly influencing growth in South Africa, where the relationship was found to be negative. Corporate tax revealed a similar significant negative relationship in Swaziland and Cameroon. In addition, property taxes revealed a significant and negative relationship in South Africa, yet in Rwanda the influence was positive. Overall, the study found that there is significant relationship between economic growth and taxation in the SSA context. However, when analysing the countries in isolation, no such relationship was found. , Thesis (MEcon) -- Faculty of Commerce, Economics and Economic History, 2022
- Full Text:
- Authors: Kent, Bradley Athol
- Date: 2022-10-14
- Subjects: Taxation Africa, Sub-Saharan , Optimal tax , Economic development Africa, Sub-Saharan , Tax collection Africa, Sub-Saharan
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/403058 , vital:69918
- Description: The relationship between economic growth and taxation is a complex and highly debated issue, this thesis investigates whether a significant relationship can be identified, and whether it is the level that truly matters for fiscal policies aimed at being growth enhancing. Further investigation examines this relationship, in addition to testing whether there is a threshold below which tax collection may be considered ‘growth-enhancing’, and above which is negative for economic growth, and if such a threshold exists, to identify the manner in which taxation negatively impacts economic growth. The study makes use of a panel data approach to autoregressive distributed lag modelling and a generalised least squares regression. The study focuses on a panel data sample for seven (7) countries within Sub-Saharan Africa (SSA) between 1997 – 2017. It found that total tax revenue held a positive and significant relationship with economic growth at the SSA level, whilst at the individual tax level; PAYE and property taxes were found to have a negative influence on growth, with no other fiscal variables significantly influencing growth in the long run in SSA test. Whereas, when analysing at the country-specific level it was found PAYE was only significantly influencing growth in South Africa, where the relationship was found to be negative. Corporate tax revealed a similar significant negative relationship in Swaziland and Cameroon. In addition, property taxes revealed a significant and negative relationship in South Africa, yet in Rwanda the influence was positive. Overall, the study found that there is significant relationship between economic growth and taxation in the SSA context. However, when analysing the countries in isolation, no such relationship was found. , Thesis (MEcon) -- Faculty of Commerce, Economics and Economic History, 2022
- Full Text:
Thicket expansion in a vachellia karroo-dominated landscape and its effect on herbaceous communities
- Authors: Khoza, Marina Rindzani
- Date: 2022-04-06
- Subjects: Savanna ecology South Africa , Forbs South Africa , Grasslands South Africa , Herbaceous plants South Africa , Vegetation dynamics South Africa , Forest canopies South Africa
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/291015 , vital:56808
- Description: Grass and forb species found in savannas are highly diverse, contributing to the structure and function of the savanna system. Where mean annual rainfall is seasonal and high enough to support closed canopy vegetation such as forests or thickets, savannas can exist as an alternative stable state maintained by disturbances such as fire and browsing. Biotic and abiotic processes act on savanna and forest (or thicket) systems maintaining both their tree and herbaceous cover at levels that ensure their persistence in those states. Studies have shown that many semi-arid rangelands in South Africa have undergone a rapid increase in tree cover (of both native and non-native species) over the past several decades. This process of increasing tree cover in semi-arid savannas, termed bush encroachment, results in a biome shift, changing landscapes that were once grasslands with few trees to ones dominated by broad-leaved trees with fewer sun-adapted forbs and grasses. The aim of this study was to investigate the impact of changing woody cover and its associated changes in tree composition, tree canopy structure, light dynamics in the understory and herbaceous community composition on Endwell farm in the Eastern Cape. Canopy cover changes between the years 1949 and 2019 were analysed at 51 sites on the farm and related to historical rainfall patterns. There had been a general increase in tree cover over the past several decades on the farm, and many sites showed a change from open (0-15%) in 1949 to low (1635%), moderate (36-50%) and high (51-100%) canopy cover in 2019. In earlier years most sites had a canopy cover below 50%, and the higher canopy cover values (>65%) occurred in more recent decades. Canopy cover of ~ 50% was found to be rare in each decade. This suggests that ~50% canopy cover maybe a transient, unstable state. The period with the highest rate of canopy cover increase was 2002-2013, and this increase coincided with a high mean annual rainfall 10 years prior to 2002 and a high mean annual rainfall in most years between the 20022013 period. The period between 2002 and 2013 also had the highest number of sites transitioning from lower to higher tree canopy cover classes, indicating that rainfall may have been a factor driving bush encroachment during the past several decades. An increase in canopy cover (a decrease in light transmittance) was accompanied by changes in woody species composition during thicket formation. The low canopy cover (high light transmittance) sites were dominated by Vachellia karroo and Scutia myrtina trees, while high tree cover sites had fewer V. karroo and S. myrtina trees and were rather characterised by an abundance of thicket tree species. Species proportion, NMDS and dendrogram plots indicated that sites with a light transmittance range between 50-100% had similar tree species compositions, different from sites with light transmittances <50%. An increase in tree density was strongly correlated to an increase in canopy cover (from 2019 satellite imagery), density of trees > 3m, maximum height reached by trees, diversity of trees, total canopy volume, total canopy area and leaf area index (LAI), and a decrease in light transmittance. A structural equation model (SEM) was used to explore the relationships between canopy characteristics (maximum canopy area, canopy volume, tree diversity, density of trees, density of trees >3m, individual trees and maximum canopy height), aerial canopy cover in 2019, and light transmittance. The model explained 73% of the variation in light transmittance, mostly via the direct effect of canopy characteristics. Canopy characteristics had a strong influence on both aerial cover in 2019 and directly on light transmittance, but canopy cover in 2019 had a weak influence on light transmittance. The herbaceous layer was rich and dominated by C4 grasses such as Eragrostis plana, Sporobolus fimbriatus, Themeda triandra and Digitaria eriantha) and forbs including Hibiscus aethiopicus, Helichrysum dregeanum, Helichrysum nudifolium and Gerbera viridifolia at low canopy cover sites with high light transmittance. In contrast, high tree cover sites had fewer herbaceous species in general. Grass and forb species characteristic of these sites high canopy cover sites were Panicum maximum, Loudetia flavida, Pellaea viridis and Cyperus spp. Different sites with low light transmittance (<50%) had similar herbaceous species composition. Basal cover, richness, abundance and diversity of herbaceous plants decreased significantly with an increase in tree density, density of trees >3 m, canopy volume, canopy area, canopy cover, LAI, and increased significantly with increasing light transmittance. Most grasses had their highest densities at LAI <0.5, which was estimated to correspond to ~75% light transmittance and ~38% canopy cover and then started to decline thereafter. Herbaceous species basal cover was also highest at LAI <0.5. An SEM model indicated that herbaceous diversity, basal cover and richness responded both to light availability and to the structure of the woody vegetation directly (R2 = 0.53). While the effect of light transmittance on herbaceous communities was strong (0.41), there was little difference between the effect of light transmittance and canopy characteristics (-0.35) on herbaceous communities. Two possible threshold points, relating to two types of transitions in vegetation structure, could be deduced from this study. The first threshold occurred at canopy cover ~ 40% (LAI < ~ 0.5, light transmittance ~ 75%), at which point many of the common herbaceous species, including the dominant C4 grasses, began to decline in abundance while the composition remained characteristic of the savanna state. A canopy cover of less than ~ 40% at a site provides a suitable state for a high abundance of grass and forb species which help maintain an open system by facilitating fires. The second threshold marked a compositional shift between savanna and closed-canopy vegetation states. Savanna species (trees, grasses and forbs) dominated at high light transmittances (>50%) and were significantly reduced at low light transmittances (< 50%), indicating a possible species composition threshold at ~50% light transmittance at which a savanna state switches to a thicket (LAI ~ 1 and canopy cover ~70%). This point indicated the point where there was a significant difference in both tree and herbaceous plant compositions, with a marked reduction in the occurrence of C4 grasses at light transmittance <50%. Fire is supressed when the C4 grass layer is lost, and further thicket encroachment will take place causing complete canopy closure. Land managers in this system should start becoming concerned about a reduction in grass biomass when canopy cover reaches about 40% and would have to reduce tree cover before the threshold of 50% light transmittance (70% canopy cover from aerial photos) is reached to maintain a savanna system. , Thesis (MSc) -- Faculty of Science, Botany, 2022
- Full Text:
Thicket expansion in a vachellia karroo-dominated landscape and its effect on herbaceous communities
- Authors: Khoza, Marina Rindzani
- Date: 2022-04-06
- Subjects: Savanna ecology South Africa , Forbs South Africa , Grasslands South Africa , Herbaceous plants South Africa , Vegetation dynamics South Africa , Forest canopies South Africa
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/291015 , vital:56808
- Description: Grass and forb species found in savannas are highly diverse, contributing to the structure and function of the savanna system. Where mean annual rainfall is seasonal and high enough to support closed canopy vegetation such as forests or thickets, savannas can exist as an alternative stable state maintained by disturbances such as fire and browsing. Biotic and abiotic processes act on savanna and forest (or thicket) systems maintaining both their tree and herbaceous cover at levels that ensure their persistence in those states. Studies have shown that many semi-arid rangelands in South Africa have undergone a rapid increase in tree cover (of both native and non-native species) over the past several decades. This process of increasing tree cover in semi-arid savannas, termed bush encroachment, results in a biome shift, changing landscapes that were once grasslands with few trees to ones dominated by broad-leaved trees with fewer sun-adapted forbs and grasses. The aim of this study was to investigate the impact of changing woody cover and its associated changes in tree composition, tree canopy structure, light dynamics in the understory and herbaceous community composition on Endwell farm in the Eastern Cape. Canopy cover changes between the years 1949 and 2019 were analysed at 51 sites on the farm and related to historical rainfall patterns. There had been a general increase in tree cover over the past several decades on the farm, and many sites showed a change from open (0-15%) in 1949 to low (1635%), moderate (36-50%) and high (51-100%) canopy cover in 2019. In earlier years most sites had a canopy cover below 50%, and the higher canopy cover values (>65%) occurred in more recent decades. Canopy cover of ~ 50% was found to be rare in each decade. This suggests that ~50% canopy cover maybe a transient, unstable state. The period with the highest rate of canopy cover increase was 2002-2013, and this increase coincided with a high mean annual rainfall 10 years prior to 2002 and a high mean annual rainfall in most years between the 20022013 period. The period between 2002 and 2013 also had the highest number of sites transitioning from lower to higher tree canopy cover classes, indicating that rainfall may have been a factor driving bush encroachment during the past several decades. An increase in canopy cover (a decrease in light transmittance) was accompanied by changes in woody species composition during thicket formation. The low canopy cover (high light transmittance) sites were dominated by Vachellia karroo and Scutia myrtina trees, while high tree cover sites had fewer V. karroo and S. myrtina trees and were rather characterised by an abundance of thicket tree species. Species proportion, NMDS and dendrogram plots indicated that sites with a light transmittance range between 50-100% had similar tree species compositions, different from sites with light transmittances <50%. An increase in tree density was strongly correlated to an increase in canopy cover (from 2019 satellite imagery), density of trees > 3m, maximum height reached by trees, diversity of trees, total canopy volume, total canopy area and leaf area index (LAI), and a decrease in light transmittance. A structural equation model (SEM) was used to explore the relationships between canopy characteristics (maximum canopy area, canopy volume, tree diversity, density of trees, density of trees >3m, individual trees and maximum canopy height), aerial canopy cover in 2019, and light transmittance. The model explained 73% of the variation in light transmittance, mostly via the direct effect of canopy characteristics. Canopy characteristics had a strong influence on both aerial cover in 2019 and directly on light transmittance, but canopy cover in 2019 had a weak influence on light transmittance. The herbaceous layer was rich and dominated by C4 grasses such as Eragrostis plana, Sporobolus fimbriatus, Themeda triandra and Digitaria eriantha) and forbs including Hibiscus aethiopicus, Helichrysum dregeanum, Helichrysum nudifolium and Gerbera viridifolia at low canopy cover sites with high light transmittance. In contrast, high tree cover sites had fewer herbaceous species in general. Grass and forb species characteristic of these sites high canopy cover sites were Panicum maximum, Loudetia flavida, Pellaea viridis and Cyperus spp. Different sites with low light transmittance (<50%) had similar herbaceous species composition. Basal cover, richness, abundance and diversity of herbaceous plants decreased significantly with an increase in tree density, density of trees >3 m, canopy volume, canopy area, canopy cover, LAI, and increased significantly with increasing light transmittance. Most grasses had their highest densities at LAI <0.5, which was estimated to correspond to ~75% light transmittance and ~38% canopy cover and then started to decline thereafter. Herbaceous species basal cover was also highest at LAI <0.5. An SEM model indicated that herbaceous diversity, basal cover and richness responded both to light availability and to the structure of the woody vegetation directly (R2 = 0.53). While the effect of light transmittance on herbaceous communities was strong (0.41), there was little difference between the effect of light transmittance and canopy characteristics (-0.35) on herbaceous communities. Two possible threshold points, relating to two types of transitions in vegetation structure, could be deduced from this study. The first threshold occurred at canopy cover ~ 40% (LAI < ~ 0.5, light transmittance ~ 75%), at which point many of the common herbaceous species, including the dominant C4 grasses, began to decline in abundance while the composition remained characteristic of the savanna state. A canopy cover of less than ~ 40% at a site provides a suitable state for a high abundance of grass and forb species which help maintain an open system by facilitating fires. The second threshold marked a compositional shift between savanna and closed-canopy vegetation states. Savanna species (trees, grasses and forbs) dominated at high light transmittances (>50%) and were significantly reduced at low light transmittances (< 50%), indicating a possible species composition threshold at ~50% light transmittance at which a savanna state switches to a thicket (LAI ~ 1 and canopy cover ~70%). This point indicated the point where there was a significant difference in both tree and herbaceous plant compositions, with a marked reduction in the occurrence of C4 grasses at light transmittance <50%. Fire is supressed when the C4 grass layer is lost, and further thicket encroachment will take place causing complete canopy closure. Land managers in this system should start becoming concerned about a reduction in grass biomass when canopy cover reaches about 40% and would have to reduce tree cover before the threshold of 50% light transmittance (70% canopy cover from aerial photos) is reached to maintain a savanna system. , Thesis (MSc) -- Faculty of Science, Botany, 2022
- Full Text:
Cyborg bodies and the search for self: an ethnographic exploration of supportive technologies as tools to mitigate daily distresses
- Authors: Kibane, Lebogang Zandile
- Date: 2022-10-14
- Subjects: Posthuman , Posthumanism , Anthropology , m-health , Wireless communication systems in medical care , Cyber-ethnography , Distress (Psychology)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/408625 , vital:70510
- Description: This dissertation explores the ways in which individuals embody cyborg realities through engaging with technological aids. It examines how these interactions have the potential to bring to light new ways of thinking about and experiencing daily distresses. Pertinent human technology interaction was observed through an overarching cyborg lens, embedded in posthumanist thought. The study began with a “human as cyborg” ontology that sought to impress upon readers the intimacy with which technology is entangled in our lives. It aimed to call to attention the use of the cyborg myth as it is concerned with “transgressed boundaries, potent fusions, and dangerous possibilities” (Haraway, 1985:7). The study followed a cyber ethnographic strategy, where cyber ethnography refers to a virtual research method that observes social and cultural phenomena that are mediated by online interactions. Data was collected over a period of eight months, beginning in December 2020 and ending in July 2021. It was collected through the following means: a short self-administered online questionnaire, computer mediated in-depth interviews, and group interviews. I also kept a journal on reflections of my own use of these supportive technologies. After analysing the results of in-depth interviews with nine primary participants and twenty-six online questionnaires, the following key themes were brought to light: Firstly, the tethered self, or cyborg self, engages in evolved acts of ‘care of the self’ mitigated through supportive technology use. Secondly, access to new technologies brings about new ways of performing the self. Thirdly, engagement with supportive technologies provides opportunity for aiding distress in the way of encouraging self-reflective and self-interrogation behaviours as seen in mobile health app use. This constant self-interrogation behaviour in turn develops a kind of technological dependency, characterized by escapism and evolved methods of self- soothing. Lastly, exploring the use of technology to aid distress revealed that technologies generate equal opportunities for improved well-being, as they do for a decreased sense of connectedness and security. The research demonstrates that supportive technology use is entangled in the fabric of our everyday lives. Through it we fashion our identities, alleviate distress, evade distress, and discover new causes of distress. , Thesis (MSocSci) -- Faculty of Humanities, Anthropology, 2022
- Full Text:
- Authors: Kibane, Lebogang Zandile
- Date: 2022-10-14
- Subjects: Posthuman , Posthumanism , Anthropology , m-health , Wireless communication systems in medical care , Cyber-ethnography , Distress (Psychology)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/408625 , vital:70510
- Description: This dissertation explores the ways in which individuals embody cyborg realities through engaging with technological aids. It examines how these interactions have the potential to bring to light new ways of thinking about and experiencing daily distresses. Pertinent human technology interaction was observed through an overarching cyborg lens, embedded in posthumanist thought. The study began with a “human as cyborg” ontology that sought to impress upon readers the intimacy with which technology is entangled in our lives. It aimed to call to attention the use of the cyborg myth as it is concerned with “transgressed boundaries, potent fusions, and dangerous possibilities” (Haraway, 1985:7). The study followed a cyber ethnographic strategy, where cyber ethnography refers to a virtual research method that observes social and cultural phenomena that are mediated by online interactions. Data was collected over a period of eight months, beginning in December 2020 and ending in July 2021. It was collected through the following means: a short self-administered online questionnaire, computer mediated in-depth interviews, and group interviews. I also kept a journal on reflections of my own use of these supportive technologies. After analysing the results of in-depth interviews with nine primary participants and twenty-six online questionnaires, the following key themes were brought to light: Firstly, the tethered self, or cyborg self, engages in evolved acts of ‘care of the self’ mitigated through supportive technology use. Secondly, access to new technologies brings about new ways of performing the self. Thirdly, engagement with supportive technologies provides opportunity for aiding distress in the way of encouraging self-reflective and self-interrogation behaviours as seen in mobile health app use. This constant self-interrogation behaviour in turn develops a kind of technological dependency, characterized by escapism and evolved methods of self- soothing. Lastly, exploring the use of technology to aid distress revealed that technologies generate equal opportunities for improved well-being, as they do for a decreased sense of connectedness and security. The research demonstrates that supportive technology use is entangled in the fabric of our everyday lives. Through it we fashion our identities, alleviate distress, evade distress, and discover new causes of distress. , Thesis (MSocSci) -- Faculty of Humanities, Anthropology, 2022
- Full Text:
Singing madness: three performative analyses of the “mad scene” from Lucia di Lammermoor
- Authors: Le Kay, Jo-Nette
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/425377 , vital:72234
- Description: This study describes three internationally recognised sopranos and their presentations of character psychology on stage, during their performances of the famous “mad scene” from Gaetano Donizetti’s opera Lucia di Lammermoor. These sopranos are Joan Sutherland, Mariella Devia, and Lisette Oropesa. I use Margaret Kartomi’s (2014) model of performativity to interpret the “madness” depicted by the three selected sopranos, as based on my interpretations of commercially released audio-visual recordings of their performances in the role of Lucia. Through analysing these performances with the help of Kartomi’s performativity model (which focuses on persona, emotion-and intersubjectivity, and reception), my research determines – with speculative interpretation, and within the reasonable limits of standard psychiatric frameworks – which mental illnesses the sopranos can be understood to have portrayed in their interpretations of the role of Lucia. The study’s goal is not to make an accurate mental health diagnosis of someone’s portrayal of a fictional character. (Considering the fact that one cannot make accurate mental health diagnoses for people who do not exist.) Rather, my focus is to discover which dramatic and possibly musical characteristics are utilised to perform this fictional character and give expressive content to her “madness”. The concept of “madness” and its psychological characterisation during performance thus becomes the framework from which to interpret and understand vocal and acting techniques related to opera in general and to bel canto more specifically. My research findings are that the three performers use facial expressions, different aspects of using the voice through bel canto singing, and body movements as a way of expression. Bel canto characteristics include coloratura embellishments, fioritura, melismas, messa di voce, squillo and chiaroscuro. The sopranos also show musical and dramatic elements in how they respond to the flute or glass harmonica during the ‘Mad Scene’ – which counts as the personae expressed by the performers. These personae are further applied in the emotional and intersubjectivity and the reception aspects of Kartomi’s performativity model. In the emotional and intersubjectivity aspect, the chorus and other characters singing on stage are read as emphasising the reaction of society on the mentally dysfunctional behaviour enacted by the sopranos. In the reception aspect, reviewers are used to filling in for audience members. I read their reactions as contributing factors in forming an understanding of the interpretations of the “mad scene” performed by the three sopranos. My reading of the three interpretations of the “mad scene” goes further by subjectively interpreting how these sopranos approximate different states of mental collapse. These readings include approximations of psychosis such as mania, dissociative personality disorder, and paranoid schizophrenic behaviour. Always, though, these mental health behaviours are identified as approximations to better understand vocal and acting techniques. , Thesis (MMus) -- Faculty of Humanities, Music and Musicology, 2023
- Full Text:
- Authors: Le Kay, Jo-Nette
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/425377 , vital:72234
- Description: This study describes three internationally recognised sopranos and their presentations of character psychology on stage, during their performances of the famous “mad scene” from Gaetano Donizetti’s opera Lucia di Lammermoor. These sopranos are Joan Sutherland, Mariella Devia, and Lisette Oropesa. I use Margaret Kartomi’s (2014) model of performativity to interpret the “madness” depicted by the three selected sopranos, as based on my interpretations of commercially released audio-visual recordings of their performances in the role of Lucia. Through analysing these performances with the help of Kartomi’s performativity model (which focuses on persona, emotion-and intersubjectivity, and reception), my research determines – with speculative interpretation, and within the reasonable limits of standard psychiatric frameworks – which mental illnesses the sopranos can be understood to have portrayed in their interpretations of the role of Lucia. The study’s goal is not to make an accurate mental health diagnosis of someone’s portrayal of a fictional character. (Considering the fact that one cannot make accurate mental health diagnoses for people who do not exist.) Rather, my focus is to discover which dramatic and possibly musical characteristics are utilised to perform this fictional character and give expressive content to her “madness”. The concept of “madness” and its psychological characterisation during performance thus becomes the framework from which to interpret and understand vocal and acting techniques related to opera in general and to bel canto more specifically. My research findings are that the three performers use facial expressions, different aspects of using the voice through bel canto singing, and body movements as a way of expression. Bel canto characteristics include coloratura embellishments, fioritura, melismas, messa di voce, squillo and chiaroscuro. The sopranos also show musical and dramatic elements in how they respond to the flute or glass harmonica during the ‘Mad Scene’ – which counts as the personae expressed by the performers. These personae are further applied in the emotional and intersubjectivity and the reception aspects of Kartomi’s performativity model. In the emotional and intersubjectivity aspect, the chorus and other characters singing on stage are read as emphasising the reaction of society on the mentally dysfunctional behaviour enacted by the sopranos. In the reception aspect, reviewers are used to filling in for audience members. I read their reactions as contributing factors in forming an understanding of the interpretations of the “mad scene” performed by the three sopranos. My reading of the three interpretations of the “mad scene” goes further by subjectively interpreting how these sopranos approximate different states of mental collapse. These readings include approximations of psychosis such as mania, dissociative personality disorder, and paranoid schizophrenic behaviour. Always, though, these mental health behaviours are identified as approximations to better understand vocal and acting techniques. , Thesis (MMus) -- Faculty of Humanities, Music and Musicology, 2023
- Full Text:
Financial technology and bank risk-taking behavior: a case of selected South African banks
- Authors: Magula, Zizipho
- Date: 2022-04-06
- Subjects: Uncatalogued
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/234206 , vital:50172
- Description: Thesis (MCom) -- Faculty of Commerce, Economics and Economic History, 2022
- Full Text:
- Authors: Magula, Zizipho
- Date: 2022-04-06
- Subjects: Uncatalogued
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/234206 , vital:50172
- Description: Thesis (MCom) -- Faculty of Commerce, Economics and Economic History, 2022
- Full Text:
Rural households’ perceptions of an invasive alien species rosa rubiginosa l. (rosehip) and the role it plays in rural livelihoods in Lesotho
- Authors: Makhorole, Thato Violet
- Date: 2022-10-14
- Subjects: Rose hips Lesotho , Invasive plants Lesotho , Rural poor Lesotho , Probit model , Principal components analysis
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/403069 , vital:69919
- Description: Despite the vast research on the negative impacts of invasive alien species on the environment, these species remain part of the rural communities due to their numerous livelihood uses. Thus, more research is required, focusing mainly on the impacts of invasive alien species on the livelihoods of rural communities. This study investigated the community perceptions of rosehip (Rosa rubiginosa) and its contribution to rural communities as an invasive alien species. Four community councils, Pitseng, Matlameng, Limamarela and Mphorosane in the Leribe District Lesotho, were assessed. The study followed the pragmatism paradigm. The contribution of rosehip to rural livelihoods was analysed by comparing income from rosehip with other income sources. The study used simple random sampling and snowball sampling to select a representative of 160 respondents. The primary data was collected using semi-structured questionnaires. Moreover, SPSS and Stata statistical package programs were used for statistical analyses. The results showed that rosehip's livelihood benefits, its negative impacts, the length of time it has been available in the area, and its abundance highly influence the social, economic and environmental perception of rural communities. Furthermore, the study revealed that although the income from rosehip is extremely low and available for only three months of the year, the income plays an important part to the poorer households who have no other income sources. The study found that the main reason for engagement in rosehip harvesting despite its challenging nature was unemployment. The study also revealed that rosehip is part of the risk-reducing strategy or income diversification. Some households used it to complement other sources of income, such as agricultural production. Rosehip trade, if well-controlled, has the potential to alleviate rural poverty by creating job opportunities, providing a source of household income, and acting as a safety net in the face of shocks such as limited job opportunities and food shortages. In conclusion, households’ perceptions of rosehip have proven that rosehip is a valuable resource that provides a supplementary income that contributes towards alleviating poverty in Lesotho’s rural communities. The study recommends the private sector to establish and manages small agro-processing industries focusing on products used daily. The study also encourages environmental education and indigenous knowledge among community members, which would include knowledge and recognition of invasive alien species and their potential benefits and threats. , Thesis (MEcon) -- Faculty of Commerce, Economics and Economic History, 2022
- Full Text:
- Authors: Makhorole, Thato Violet
- Date: 2022-10-14
- Subjects: Rose hips Lesotho , Invasive plants Lesotho , Rural poor Lesotho , Probit model , Principal components analysis
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/403069 , vital:69919
- Description: Despite the vast research on the negative impacts of invasive alien species on the environment, these species remain part of the rural communities due to their numerous livelihood uses. Thus, more research is required, focusing mainly on the impacts of invasive alien species on the livelihoods of rural communities. This study investigated the community perceptions of rosehip (Rosa rubiginosa) and its contribution to rural communities as an invasive alien species. Four community councils, Pitseng, Matlameng, Limamarela and Mphorosane in the Leribe District Lesotho, were assessed. The study followed the pragmatism paradigm. The contribution of rosehip to rural livelihoods was analysed by comparing income from rosehip with other income sources. The study used simple random sampling and snowball sampling to select a representative of 160 respondents. The primary data was collected using semi-structured questionnaires. Moreover, SPSS and Stata statistical package programs were used for statistical analyses. The results showed that rosehip's livelihood benefits, its negative impacts, the length of time it has been available in the area, and its abundance highly influence the social, economic and environmental perception of rural communities. Furthermore, the study revealed that although the income from rosehip is extremely low and available for only three months of the year, the income plays an important part to the poorer households who have no other income sources. The study found that the main reason for engagement in rosehip harvesting despite its challenging nature was unemployment. The study also revealed that rosehip is part of the risk-reducing strategy or income diversification. Some households used it to complement other sources of income, such as agricultural production. Rosehip trade, if well-controlled, has the potential to alleviate rural poverty by creating job opportunities, providing a source of household income, and acting as a safety net in the face of shocks such as limited job opportunities and food shortages. In conclusion, households’ perceptions of rosehip have proven that rosehip is a valuable resource that provides a supplementary income that contributes towards alleviating poverty in Lesotho’s rural communities. The study recommends the private sector to establish and manages small agro-processing industries focusing on products used daily. The study also encourages environmental education and indigenous knowledge among community members, which would include knowledge and recognition of invasive alien species and their potential benefits and threats. , Thesis (MEcon) -- Faculty of Commerce, Economics and Economic History, 2022
- Full Text:
The effect of orchard sanitation and predatory ants on the eclosion of the internal feeding pests and Oriental fruit fly, in South Africa
- Authors: Makitla, Tshepang
- Date: 2022-10-14
- Subjects: Orchards South Africa , Phytosanitation , Citrus Diseases and pests Biological control , Ants , Insects as biological pest control agents
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/362927 , vital:65375
- Description: There are several pests of phytosanitary concern in the citrus industry in South Africa. Orchard sanitation can play an important role in suppressing the populations of these pests, however there are little data on the efficacy of sanitation techniques. Therefore, the current study investigated the effect of fruit disposal techniques and burying depths on the eclosion of the most important pests of citrus in South Africa, false codling moth Thaumatotibia leucotreta Meyrick (Lepidoptera: Tortricidae), Mediterranean fruit fly or Medfly Ceratitis capitata Wiedemann (Diptera: Tephritidae), Natal fruit fly Ceratitis rosa Karsh (Diptera: Tephritidae), and Oriental fruit fly Bactrocera dorsalis Hendel (Diptera: Tephritidae). Abscised C. sinensis fruits were inoculated with larvae of T. leucotreta, and eggs of C. capitata, C. rosa, and B. dorsalis, before being disposed as pulped, or whole, and buried at different depths (0 cm, 5 cm, 25 cm, and 50 cm). Abundance and richness of predatory ants were monitored using pitfall traps to ascertain their effect on the mortality of the immature stages of these pests. Ceratitis capitata and C. rosa failed to eclose from the inoculated fruits disposed at different depths, however, T. leucotreta and B. dorsalis adults did eclosed. Significantly fewer B. dorsalis eclosed from fruits that were pulped in comparison to eclosion where the fruit were left whole (F (3, 16) = 11.45, P < 0.01). Furthermore, depth of burial had a significant effect on the number of eclosed adults of Drosophila sp (F (3, 112) = 3.43, P < 0.01). Burying fruits at 50 cm suppressed the eclosion of all the internal feeding pests tested. Twenty-seven thousand seventy-three individual ants (Hymenoptera: Formicidae) were sampled from the same plots as used above, with at least 47% and 53% sampled from plots where pulped and whole C. sinensis fruits were disposed of, respectively. The ants were identified to morphospecies which included Pheidole1, Pheidole2, Formicinae1, Formicinae2, Formicinae3, and Myrmicinae1. The disposal of the inoculated C. sinensis fruits either as pulped or whole and burying at different depths significantly suppressed and/or delayed the eclosion of either of the tested internal feeding pests of citrus. Although, predacious ants were sampled from the same treatment plots they did not affect the survival or eclosion of the tested pests, and this could be attributed to the application of the slow toxic ant bait. Therefore, based on the observed results B. dorsalis adults showed the ability to eclose from 50 cm depth where fruit was either disposed as pulped or whole, thus, citrus farmers are advised to use hammer mill that will finely crush sanitised fruit, and/or bury fruit beyond 50 cm depth to prevent the adult od this pest from eclosing. , Thesis (MSc) -- Faculty of Science, Zoology and Entomology, 2022
- Full Text:
- Authors: Makitla, Tshepang
- Date: 2022-10-14
- Subjects: Orchards South Africa , Phytosanitation , Citrus Diseases and pests Biological control , Ants , Insects as biological pest control agents
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/362927 , vital:65375
- Description: There are several pests of phytosanitary concern in the citrus industry in South Africa. Orchard sanitation can play an important role in suppressing the populations of these pests, however there are little data on the efficacy of sanitation techniques. Therefore, the current study investigated the effect of fruit disposal techniques and burying depths on the eclosion of the most important pests of citrus in South Africa, false codling moth Thaumatotibia leucotreta Meyrick (Lepidoptera: Tortricidae), Mediterranean fruit fly or Medfly Ceratitis capitata Wiedemann (Diptera: Tephritidae), Natal fruit fly Ceratitis rosa Karsh (Diptera: Tephritidae), and Oriental fruit fly Bactrocera dorsalis Hendel (Diptera: Tephritidae). Abscised C. sinensis fruits were inoculated with larvae of T. leucotreta, and eggs of C. capitata, C. rosa, and B. dorsalis, before being disposed as pulped, or whole, and buried at different depths (0 cm, 5 cm, 25 cm, and 50 cm). Abundance and richness of predatory ants were monitored using pitfall traps to ascertain their effect on the mortality of the immature stages of these pests. Ceratitis capitata and C. rosa failed to eclose from the inoculated fruits disposed at different depths, however, T. leucotreta and B. dorsalis adults did eclosed. Significantly fewer B. dorsalis eclosed from fruits that were pulped in comparison to eclosion where the fruit were left whole (F (3, 16) = 11.45, P < 0.01). Furthermore, depth of burial had a significant effect on the number of eclosed adults of Drosophila sp (F (3, 112) = 3.43, P < 0.01). Burying fruits at 50 cm suppressed the eclosion of all the internal feeding pests tested. Twenty-seven thousand seventy-three individual ants (Hymenoptera: Formicidae) were sampled from the same plots as used above, with at least 47% and 53% sampled from plots where pulped and whole C. sinensis fruits were disposed of, respectively. The ants were identified to morphospecies which included Pheidole1, Pheidole2, Formicinae1, Formicinae2, Formicinae3, and Myrmicinae1. The disposal of the inoculated C. sinensis fruits either as pulped or whole and burying at different depths significantly suppressed and/or delayed the eclosion of either of the tested internal feeding pests of citrus. Although, predacious ants were sampled from the same treatment plots they did not affect the survival or eclosion of the tested pests, and this could be attributed to the application of the slow toxic ant bait. Therefore, based on the observed results B. dorsalis adults showed the ability to eclose from 50 cm depth where fruit was either disposed as pulped or whole, thus, citrus farmers are advised to use hammer mill that will finely crush sanitised fruit, and/or bury fruit beyond 50 cm depth to prevent the adult od this pest from eclosing. , Thesis (MSc) -- Faculty of Science, Zoology and Entomology, 2022
- Full Text:
The regulation of privacy on cloud computing services in terms of the Protection of Personal Information Act 4 of 2013
- Authors: Malahleka, Mthuthukisi
- Date: 2022-04-06
- Subjects: South Africa. Protection of Personal Information Act, 2013 , Cloud computing Law and legislation South Africa , Data protection Law and legislation South Africa , Personal information management South Africa , Data privacy South Africa , Computer security Law and legislation South Africa , General Data Protection Regulation (GDPR)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/290731 , vital:56779
- Description: There is a relatively new development in Information Technology (IT) space known as cloud computing, software and service delivered remotely through the Internet without installing software on a computer. Cloud computing has quickly gathered steam as one of the most prominent topics in IT, and indeed within the business sector as a whole. Cloud computing is one such development associated with opportunities and benefits, especially in the commercial sector. Due to the development of IT and many businesses adopting e-commerce business-related strategies, cloud computing has revolutionised how personal information is processed. The advent of cloud computing as a mechanism to process personal information has brought many legal challenges for protecting the right to privacy enshrined under section 14 of the South African Constitution, which is a vulnerable part of one’s personality right. The right to privacy has long been protected even before adopting the Constitution under the common law of delict (actio iniuriarumn). As the adoption rate of cloud computing services by businesses continues to increase, the legal considerations and risks become more prevalent. The lawmakers struggle to keep pace with the rapidly changing technological advancements, at least for now. Both the common law and the Constitution could not address all the legal aspects of data protection and the adoption of cloud computing services hence the promulgation of the Protection of Personal Information Act 4 of 2013 (POPI Act). The POPI Act’s main objective is to protect the personal information of both natural and juristic persons. Personal information about an individual forms part of privacy. Unlawful processing of such personal information is a violation of the right to privacy of an individual. It is now widely recognised that the unregulated processing of personal information significantly impacts fundamental human rights like privacy, personality, and autonomy. A close analysis of cloud computing regulation is necessary, as legal protection mechanisms must safeguard the processing of personal information and establish extraterritorial jurisdiction to regulate the use of cloud computing within national legislation as cloud computing provides a transnational characteristic on the cross-border flow of personal information. In this thesis, a question is asked on whether the current data protection laws in South Africa on protecting the right to privacy in the cloud computing services context are adequate. The analysis will determine whether the overlaps between these pieces of data protection laws are competent to deal with the ever-increasing threats on the right to privacy and if they meet the international data protection standards set by the European Union’s General Data Protection Regulation (GDPR). The research seeks to analyse and reveal the shortcomings under the Constitution and the common law that led to adopting the POPI Act by studying the regulation of cloud computing services. This analysis will determine the shortcomings of the POPI Act as well in the context of cloud computing. The research will then follow a comparative analysis of the POPI Act and the GDPR to determine the application of the GDPR on international data breaches and compare its provisions with the POPI Act in the context of cloud computing. Finally, the research will address the question as to whether a multi-faceted approach, which includes a Model Law on cloud computing, would be an appropriate starting point setting out requirements for the use of this technology can be sufficient in protecting data subjects. And as cloud computing risks are not only a national but also a global problem, South Africa needs to look at the option of entering into mutual agreements with other countries and organisations to regulate cloud computing at an international level. , Thesis (LLM) -- Faculty of Law, Law, 2022
- Full Text:
- Authors: Malahleka, Mthuthukisi
- Date: 2022-04-06
- Subjects: South Africa. Protection of Personal Information Act, 2013 , Cloud computing Law and legislation South Africa , Data protection Law and legislation South Africa , Personal information management South Africa , Data privacy South Africa , Computer security Law and legislation South Africa , General Data Protection Regulation (GDPR)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/290731 , vital:56779
- Description: There is a relatively new development in Information Technology (IT) space known as cloud computing, software and service delivered remotely through the Internet without installing software on a computer. Cloud computing has quickly gathered steam as one of the most prominent topics in IT, and indeed within the business sector as a whole. Cloud computing is one such development associated with opportunities and benefits, especially in the commercial sector. Due to the development of IT and many businesses adopting e-commerce business-related strategies, cloud computing has revolutionised how personal information is processed. The advent of cloud computing as a mechanism to process personal information has brought many legal challenges for protecting the right to privacy enshrined under section 14 of the South African Constitution, which is a vulnerable part of one’s personality right. The right to privacy has long been protected even before adopting the Constitution under the common law of delict (actio iniuriarumn). As the adoption rate of cloud computing services by businesses continues to increase, the legal considerations and risks become more prevalent. The lawmakers struggle to keep pace with the rapidly changing technological advancements, at least for now. Both the common law and the Constitution could not address all the legal aspects of data protection and the adoption of cloud computing services hence the promulgation of the Protection of Personal Information Act 4 of 2013 (POPI Act). The POPI Act’s main objective is to protect the personal information of both natural and juristic persons. Personal information about an individual forms part of privacy. Unlawful processing of such personal information is a violation of the right to privacy of an individual. It is now widely recognised that the unregulated processing of personal information significantly impacts fundamental human rights like privacy, personality, and autonomy. A close analysis of cloud computing regulation is necessary, as legal protection mechanisms must safeguard the processing of personal information and establish extraterritorial jurisdiction to regulate the use of cloud computing within national legislation as cloud computing provides a transnational characteristic on the cross-border flow of personal information. In this thesis, a question is asked on whether the current data protection laws in South Africa on protecting the right to privacy in the cloud computing services context are adequate. The analysis will determine whether the overlaps between these pieces of data protection laws are competent to deal with the ever-increasing threats on the right to privacy and if they meet the international data protection standards set by the European Union’s General Data Protection Regulation (GDPR). The research seeks to analyse and reveal the shortcomings under the Constitution and the common law that led to adopting the POPI Act by studying the regulation of cloud computing services. This analysis will determine the shortcomings of the POPI Act as well in the context of cloud computing. The research will then follow a comparative analysis of the POPI Act and the GDPR to determine the application of the GDPR on international data breaches and compare its provisions with the POPI Act in the context of cloud computing. Finally, the research will address the question as to whether a multi-faceted approach, which includes a Model Law on cloud computing, would be an appropriate starting point setting out requirements for the use of this technology can be sufficient in protecting data subjects. And as cloud computing risks are not only a national but also a global problem, South Africa needs to look at the option of entering into mutual agreements with other countries and organisations to regulate cloud computing at an international level. , Thesis (LLM) -- Faculty of Law, Law, 2022
- Full Text:
The effects of temperature and exploitation on the behaviour of red roman Chrysoblephus laticeps (Sparidae) at baited video stations
- Authors: Mataboge, Bontle Boitumelo
- Date: 2022-04-06
- Subjects: Marine resources conservation South Africa Agulhas , Sparidae Effect of temperature on South Africa Agulhas , Sparidae Climatic factors South Africa Agulhas , Sparidae Effect of fishing on South Africa Agulhas , Sparidae Effect of human beings on South Africa Agulhas , Sparidae Behavior South Africa Agulhas , Overfishing South Africa Agulhas , Underwater videography in wildlife monitoring South Africa Agulhas , Red roman (Chrysoblephus laticeps)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/291140 , vital:56823
- Description: Marine environments are experiencing rapidly increasing temperatures, sea levels and acidification and higher frequencies and magnitudes of extreme weather events as a result of climate change. In the Agulhas Ecoregion of South Africa, there has been an increase in the frequency and intensity of upwelling events. Upwelling events result in rapid and large decreases in water temperature which can persist for several days. Variation in water temperature is known to impact the metabolic rate of fish (which are ectotherms) and in turn their activity patterns. To promote fitness related traits, the metabolic rate of fish is maximised at a specific temperature range. Outside of this optimal temperature range, the capacity of fish to perform aerobically declines. Therefore, it is expected that an increase in upwelling may place the fish under significant physiological stress. The effects of climate change can be compounded by the effects of fisheries-induced evolution; the microevolution of a fish population due to the artificial selection of certain biological traits by fishing practices. Passive fishing gears preferentially remove large (older) and bold individuals, causing reductions in population size, genetic diversity and fecundity as well as size and age truncation and the loss of large, bold and dominant phenotypes in fish populations. These demographic changes affect the adaptive capacity of fish and exploited populations are expected to be less resilient to climate variability and long-term temperature change. The resilience of fish is largely dependent on their physiological attributes, particularly their metabolic rate. Theoretically, fish with broader aerobic scope (defined as the difference between an individual’s maximum metabolic rate and standard metabolic rate) will be more tolerant to the impacts of climate change as they have energy available for adaptation. Recent respirometry and accelerometry studies suggest that populations of the endemic southern African linefish Chrysoblephus laticeps (red roman) from inside marine protected areas (MPAs) have higher metabolic rates and broader aerobic scope compared to those found outside of MPAs, particularly at thermal extremes. As C. laticeps are highly resident it is possible that fish populations protected within well-established MPAs may be more resilient to the physiological stresses caused by upwelling if they are able to maintain their activity levels despite changing temperatures. Behaviour is a proxy that can be used to infer metabolism as behaviours have associated metabolic costs and benefits. Behaviour is also a trait that can be altered by passive fishing practices which preferentially extract more active and bold individuals. Given this context, the aim of this thesis was to determine the effects of short-term thermal variability on the population structure and behaviour of C. laticeps and whether these effects differed between protected and exploited populations. Baited remote underwater stereo-video systems (stereo-BRUVs) were used to observe C. laticeps inside two MPAs (Tsitsikamma and Goukamma) and at two exploited sites (Port Elizabeth and Cape St. Francis) over the temperature range 10-18 °C. The relative abundance, size and relevant behaviours of C. laticeps were recorded. The relative abundance (MaxN) of C. laticeps was not significantly higher inside the MPAs compared to the exploited sites. The size of C. laticeps did not vary significantly by protection level either. However, the mean size of C. laticeps was considerably smaller at Port Elizabeth compared to the three other locations. There was a notable absence of large C. laticeps size classes at Port Elizabeth. The effect of water temperature on relative abundance was only seen in the exploited areas, where temperature and abundance were positively correlated. This was not the case in the protected areas where C. laticeps abundance remained roughly consistent. Generally, the effect of temperature on all measured behaviours was consistent across protection levels. An exception was that the feeding rate at Tsitsikamma MPA was significantly higher than at Cape St. Francis at temperatures below 11.5 °C. Temperature had a significant effect on the time taken for the first individual to appear in the field of view. This time shortened with increasing temperature, regardless of protection level. This was likely a result of the metabolic constraints placed on individuals by low waters temperatures and individuals would be able to pursue the bait more readily at higher temperatures. However, there was no evidence of greater metabolic scope from the C. laticeps individuals observed in the MPAs, relative to the exploited areas. Individual size and the presence of conspecifics were also found to significantly influence behaviour. Generally, size had a positive relationship with behaviour, with larger individuals more likely to feed on the bait, chase other fish from the bait (only in the MPAs) and spend more time in the field of view. The higher displays of aggression in MPAs may be an indication of fishing practices having removed bold and dominant individuals at the exploited sites. The probability of fleeing and the feeding rates of individuals increased with increasing numbers of conspecifics, suggesting that C. laticeps behaviour is influenced by intraspecific competition. Overall, this thesis did not find strong evidence that C. laticeps from MPAs performed better than C. laticeps from exploited areas, even at low temperatures. Behavioural responses to temperature were highly variable across locations and this may be attributed to high behavioural phenotypic diversity among individuals. Environmental stressors, such as temperature changes, can illicit very different behavioural responses among individuals in a population. It is also possible that C. laticeps from the exploited areas have the same genetic predispositions to physiological stress as the individuals in the MPAs due to spillover and larval recruitment from the MPAs. Indeed, genetic studies find that all C. laticeps population in South African represent a single well-mixed genetic stock. It is likely that greater sampling effort is required to resolve the patterns in behaviour between exploited and protected populations. Nonetheless, given the influence of size on behaviour, the smaller size of C. laticeps at Port Elizabeth may be cause for concern regarding the vulnerability of future populations to ongoing climate change. , Thesis (MSc) -- Faculty of Science, Ichthyology and Fisheries Science, 2022
- Full Text:
- Authors: Mataboge, Bontle Boitumelo
- Date: 2022-04-06
- Subjects: Marine resources conservation South Africa Agulhas , Sparidae Effect of temperature on South Africa Agulhas , Sparidae Climatic factors South Africa Agulhas , Sparidae Effect of fishing on South Africa Agulhas , Sparidae Effect of human beings on South Africa Agulhas , Sparidae Behavior South Africa Agulhas , Overfishing South Africa Agulhas , Underwater videography in wildlife monitoring South Africa Agulhas , Red roman (Chrysoblephus laticeps)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/291140 , vital:56823
- Description: Marine environments are experiencing rapidly increasing temperatures, sea levels and acidification and higher frequencies and magnitudes of extreme weather events as a result of climate change. In the Agulhas Ecoregion of South Africa, there has been an increase in the frequency and intensity of upwelling events. Upwelling events result in rapid and large decreases in water temperature which can persist for several days. Variation in water temperature is known to impact the metabolic rate of fish (which are ectotherms) and in turn their activity patterns. To promote fitness related traits, the metabolic rate of fish is maximised at a specific temperature range. Outside of this optimal temperature range, the capacity of fish to perform aerobically declines. Therefore, it is expected that an increase in upwelling may place the fish under significant physiological stress. The effects of climate change can be compounded by the effects of fisheries-induced evolution; the microevolution of a fish population due to the artificial selection of certain biological traits by fishing practices. Passive fishing gears preferentially remove large (older) and bold individuals, causing reductions in population size, genetic diversity and fecundity as well as size and age truncation and the loss of large, bold and dominant phenotypes in fish populations. These demographic changes affect the adaptive capacity of fish and exploited populations are expected to be less resilient to climate variability and long-term temperature change. The resilience of fish is largely dependent on their physiological attributes, particularly their metabolic rate. Theoretically, fish with broader aerobic scope (defined as the difference between an individual’s maximum metabolic rate and standard metabolic rate) will be more tolerant to the impacts of climate change as they have energy available for adaptation. Recent respirometry and accelerometry studies suggest that populations of the endemic southern African linefish Chrysoblephus laticeps (red roman) from inside marine protected areas (MPAs) have higher metabolic rates and broader aerobic scope compared to those found outside of MPAs, particularly at thermal extremes. As C. laticeps are highly resident it is possible that fish populations protected within well-established MPAs may be more resilient to the physiological stresses caused by upwelling if they are able to maintain their activity levels despite changing temperatures. Behaviour is a proxy that can be used to infer metabolism as behaviours have associated metabolic costs and benefits. Behaviour is also a trait that can be altered by passive fishing practices which preferentially extract more active and bold individuals. Given this context, the aim of this thesis was to determine the effects of short-term thermal variability on the population structure and behaviour of C. laticeps and whether these effects differed between protected and exploited populations. Baited remote underwater stereo-video systems (stereo-BRUVs) were used to observe C. laticeps inside two MPAs (Tsitsikamma and Goukamma) and at two exploited sites (Port Elizabeth and Cape St. Francis) over the temperature range 10-18 °C. The relative abundance, size and relevant behaviours of C. laticeps were recorded. The relative abundance (MaxN) of C. laticeps was not significantly higher inside the MPAs compared to the exploited sites. The size of C. laticeps did not vary significantly by protection level either. However, the mean size of C. laticeps was considerably smaller at Port Elizabeth compared to the three other locations. There was a notable absence of large C. laticeps size classes at Port Elizabeth. The effect of water temperature on relative abundance was only seen in the exploited areas, where temperature and abundance were positively correlated. This was not the case in the protected areas where C. laticeps abundance remained roughly consistent. Generally, the effect of temperature on all measured behaviours was consistent across protection levels. An exception was that the feeding rate at Tsitsikamma MPA was significantly higher than at Cape St. Francis at temperatures below 11.5 °C. Temperature had a significant effect on the time taken for the first individual to appear in the field of view. This time shortened with increasing temperature, regardless of protection level. This was likely a result of the metabolic constraints placed on individuals by low waters temperatures and individuals would be able to pursue the bait more readily at higher temperatures. However, there was no evidence of greater metabolic scope from the C. laticeps individuals observed in the MPAs, relative to the exploited areas. Individual size and the presence of conspecifics were also found to significantly influence behaviour. Generally, size had a positive relationship with behaviour, with larger individuals more likely to feed on the bait, chase other fish from the bait (only in the MPAs) and spend more time in the field of view. The higher displays of aggression in MPAs may be an indication of fishing practices having removed bold and dominant individuals at the exploited sites. The probability of fleeing and the feeding rates of individuals increased with increasing numbers of conspecifics, suggesting that C. laticeps behaviour is influenced by intraspecific competition. Overall, this thesis did not find strong evidence that C. laticeps from MPAs performed better than C. laticeps from exploited areas, even at low temperatures. Behavioural responses to temperature were highly variable across locations and this may be attributed to high behavioural phenotypic diversity among individuals. Environmental stressors, such as temperature changes, can illicit very different behavioural responses among individuals in a population. It is also possible that C. laticeps from the exploited areas have the same genetic predispositions to physiological stress as the individuals in the MPAs due to spillover and larval recruitment from the MPAs. Indeed, genetic studies find that all C. laticeps population in South African represent a single well-mixed genetic stock. It is likely that greater sampling effort is required to resolve the patterns in behaviour between exploited and protected populations. Nonetheless, given the influence of size on behaviour, the smaller size of C. laticeps at Port Elizabeth may be cause for concern regarding the vulnerability of future populations to ongoing climate change. , Thesis (MSc) -- Faculty of Science, Ichthyology and Fisheries Science, 2022
- Full Text:
Joice Mujuru and the Zanu-PF Women’s League 1973-2014: opportunities and limits of maternal dignity (musha mukadzi) and self-preservation
- Authors: Mataruse, Sisasenkosi
- Date: 2022-04-07
- Subjects: Mujuru, Amai Joice T R (Amai Joice Teurai Ropa) , ZANU Women's League , Women and democracy Zimbabwe , Women Political activity Zimbabwe , Political leadership Zimbabwe , Sexism in political culture Zimbabwe , Patriarchy Zimbabwe , Women Zimbabwe Social conditions , Maternal dignity (musha mukadzi)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/292748 , vital:57012
- Description: The foundations of African feminisms are intertwined with the historical liberation of the African continent. Joice Mujuru’s five decades in Zimbabwean political parties are no different in showing the gendered nature of the fight against the intersectional oppressions of nation, race, class and gender. The research aimed to examine the political life of Joice Mujuru between 1973 and 2018 in various political roles and what this might mean for how women political leaders participate and make decisions as autonomous individuals within political parties in Zimbabwe. This study is a political biography of Joice Mujuru’s ideas and leadership in political parties in Zimbabwe since 1973, when she joined the Zimbabwe African National Union – Patriotic Front (ZANU-PF) as a guerilla of its military wing, the Zimbabwe African National Liberation Army (ZANLA). Mujuru was the only woman in the first ZANU-PF cabinet in 1980. She served the Zimbabwean government in different cabinet positions and became the first female vice-president in 2004, until her ousting in 2014. This study is based on an interview with Mujuru, and nine interviews with one Member of Parliament, two independent political party candidates, three academics, two CSO activists, the leader of LEAD political party in Zimbabwe and personal communication with a celebrated Zimbabwean writer. The study uses the concept of “patriarchal bargain” (Kandiyoti, 1988; Makhunga, 2016) and “femocracy” (Mama, 1995b) to show that Mujuru’s participation in political parties has been shaped by compromising and negotiating a complex web of patriarchal constraints for acceptance and respect. This study shows that wifehood and motherhood, the idea of musha mukadzi (‘woman as home’), stands out as a defining factor for Mujuru in her identity formation as a political party leader and how she views the roles of other women in Zimbabwean political parties and politics. I term this political identity maternal dignity, which is a collective set of ideas of maternal respect determining women’s participation in political parties. The study shows that Mujuru uses dominant ideas of maternal dignity as a tool of self-presentation and self-preservation to survive as a political leader. Mujuru’s expulsion from ZANU-PF and her subsequent leadership in other political parties demonstrates the ways in which maternal dignity limits women from shaping alternative ideas of leadership outside of respectable womanhood. Through a political biography of Mujuru, the study reaches the conclusion that post-independence Zimbabwe offers limited space for women’s leadership, whether those women have liberation history credentials or not. The strategy of maternal dignity that Mujuru has used to navigate her political career is a “patriarchal bargain” with limited possibilities for women’s meaningful participation, and the transformation of political parties and governance in Zimbabwe. , Thesis (MA) -- Faculty of Humanities, Political and International Studies, 2022
- Full Text:
- Authors: Mataruse, Sisasenkosi
- Date: 2022-04-07
- Subjects: Mujuru, Amai Joice T R (Amai Joice Teurai Ropa) , ZANU Women's League , Women and democracy Zimbabwe , Women Political activity Zimbabwe , Political leadership Zimbabwe , Sexism in political culture Zimbabwe , Patriarchy Zimbabwe , Women Zimbabwe Social conditions , Maternal dignity (musha mukadzi)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/292748 , vital:57012
- Description: The foundations of African feminisms are intertwined with the historical liberation of the African continent. Joice Mujuru’s five decades in Zimbabwean political parties are no different in showing the gendered nature of the fight against the intersectional oppressions of nation, race, class and gender. The research aimed to examine the political life of Joice Mujuru between 1973 and 2018 in various political roles and what this might mean for how women political leaders participate and make decisions as autonomous individuals within political parties in Zimbabwe. This study is a political biography of Joice Mujuru’s ideas and leadership in political parties in Zimbabwe since 1973, when she joined the Zimbabwe African National Union – Patriotic Front (ZANU-PF) as a guerilla of its military wing, the Zimbabwe African National Liberation Army (ZANLA). Mujuru was the only woman in the first ZANU-PF cabinet in 1980. She served the Zimbabwean government in different cabinet positions and became the first female vice-president in 2004, until her ousting in 2014. This study is based on an interview with Mujuru, and nine interviews with one Member of Parliament, two independent political party candidates, three academics, two CSO activists, the leader of LEAD political party in Zimbabwe and personal communication with a celebrated Zimbabwean writer. The study uses the concept of “patriarchal bargain” (Kandiyoti, 1988; Makhunga, 2016) and “femocracy” (Mama, 1995b) to show that Mujuru’s participation in political parties has been shaped by compromising and negotiating a complex web of patriarchal constraints for acceptance and respect. This study shows that wifehood and motherhood, the idea of musha mukadzi (‘woman as home’), stands out as a defining factor for Mujuru in her identity formation as a political party leader and how she views the roles of other women in Zimbabwean political parties and politics. I term this political identity maternal dignity, which is a collective set of ideas of maternal respect determining women’s participation in political parties. The study shows that Mujuru uses dominant ideas of maternal dignity as a tool of self-presentation and self-preservation to survive as a political leader. Mujuru’s expulsion from ZANU-PF and her subsequent leadership in other political parties demonstrates the ways in which maternal dignity limits women from shaping alternative ideas of leadership outside of respectable womanhood. Through a political biography of Mujuru, the study reaches the conclusion that post-independence Zimbabwe offers limited space for women’s leadership, whether those women have liberation history credentials or not. The strategy of maternal dignity that Mujuru has used to navigate her political career is a “patriarchal bargain” with limited possibilities for women’s meaningful participation, and the transformation of political parties and governance in Zimbabwe. , Thesis (MA) -- Faculty of Humanities, Political and International Studies, 2022
- Full Text:
A conceptual IT governance framework to guide the development of interoperable health information systems
- Authors: Matshaba, Lebogang
- Date: 2022-04-06
- Subjects: Information technology Management , Information technology Management Standards , Information technology Security measures , Medical informatics South Africa , Medical records Data processing , Internetworking (Telecommunication) , National health insurance South Africa , Design Science Research (DSR)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/284570 , vital:56075
- Description: In light of changing health needs, health information systems are presented with a plethora of challenges. For instance, the rise of COVID-19 in the past year has led to the discourse on the strength of current health systems to support health needs and the readiness for the National Health Insurance in South Africa. In addition to operating in resource-constrained environments, the lack of synchrony between health information systems across health facilities led to the fragmentation of health information and diminished access to quality healthcare. This research, following the Design Science Research Methodology (DSRM) process, developed an IT governance conceptual framework (HISIG-CF), to inform the interoperability of health information systems. The HISIG-CF is developed from literature and qualitative data collected using an expert reviews method from practitioners in the healthcare sector who evaluated the constructs of the HISIG-CF. Thematic analysis and hermeneutics were used to analyse and interpret the data. The results revealed a need for more guidance to inform interoperability interventions and strengthen current health information systems. The contribution of this study is the HISIG-CF which is deemed relevant and potentially fit-for-purpose to improve health information systems interoperability within the healthcare sector in South Africa. , Thesis (MCom) -- Faculty of Commerce, Department of Information Systems, 2022
- Full Text:
- Authors: Matshaba, Lebogang
- Date: 2022-04-06
- Subjects: Information technology Management , Information technology Management Standards , Information technology Security measures , Medical informatics South Africa , Medical records Data processing , Internetworking (Telecommunication) , National health insurance South Africa , Design Science Research (DSR)
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/284570 , vital:56075
- Description: In light of changing health needs, health information systems are presented with a plethora of challenges. For instance, the rise of COVID-19 in the past year has led to the discourse on the strength of current health systems to support health needs and the readiness for the National Health Insurance in South Africa. In addition to operating in resource-constrained environments, the lack of synchrony between health information systems across health facilities led to the fragmentation of health information and diminished access to quality healthcare. This research, following the Design Science Research Methodology (DSRM) process, developed an IT governance conceptual framework (HISIG-CF), to inform the interoperability of health information systems. The HISIG-CF is developed from literature and qualitative data collected using an expert reviews method from practitioners in the healthcare sector who evaluated the constructs of the HISIG-CF. Thematic analysis and hermeneutics were used to analyse and interpret the data. The results revealed a need for more guidance to inform interoperability interventions and strengthen current health information systems. The contribution of this study is the HISIG-CF which is deemed relevant and potentially fit-for-purpose to improve health information systems interoperability within the healthcare sector in South Africa. , Thesis (MCom) -- Faculty of Commerce, Department of Information Systems, 2022
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Exploring the influence of student protests on organisational citizenship behaviour of academics and support mechanisms in higher learning institutions
- Authors: Mayekiso, Sinovuyo
- Date: 2022-10-14
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/406198 , vital:70248
- Description: Embargoed. To be released in 2024. , Thesis (MA) -- Faculty of Humanities, Psychology, 2022
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- Authors: Mayekiso, Sinovuyo
- Date: 2022-10-14
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/406198 , vital:70248
- Description: Embargoed. To be released in 2024. , Thesis (MA) -- Faculty of Humanities, Psychology, 2022
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The quality of higher education and its influence on graduate employability and employer perception
- Authors: Mqingwana, Siviwe Nokulinda
- Date: 2022-04-06
- Subjects: Employability , Career education , Education, Higher Aims and objectives , College graduates Employment , Universities and colleges Ratings and rankings , Labor supply Effect of education on , College graduates Vocational guidance
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/284526 , vital:56071
- Description: This study examined the quality of higher education and its influence on graduate employability and employer perception. Through determining the factors influencing graduates’ employment by employers and also the elements that induce employers in employing graduates, this was achieved. This research is rooted in a positivist perspective determining the relationship between graduate employability and a universities’ status. The main goal of this research was to examine to what extent employers are influenced by a higher education institution's perceived reputation when employing graduates. The linear regression model was used to predict the relationship between graduate employability (dependent variable) and the perceived reputation of the university by employers and citations of the university. This was achieved using quantitative methods. The quantitative database that this research relied on is Quacquarelli Symonds (QS) world university ranking. This research made use of descriptive data analysis as well as linear regression. The data set analysis showed citations of the institution had a significant negative relationship with the rate of employability (although this was a relatively weak relationship). The reputation of the institution and the number of international students enrolled do not affect the rate of employability. The analysed data set also showed that the number of citations of a university had a significant impact on the rate of employability at the 10% significance level. As such, higher education institutions need to consider including current market demand into their offerings to improve their graduate’s employability. , Thesis (MBA) -- Faculty of Commerce, Rhodes Business School, 2022
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- Authors: Mqingwana, Siviwe Nokulinda
- Date: 2022-04-06
- Subjects: Employability , Career education , Education, Higher Aims and objectives , College graduates Employment , Universities and colleges Ratings and rankings , Labor supply Effect of education on , College graduates Vocational guidance
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/284526 , vital:56071
- Description: This study examined the quality of higher education and its influence on graduate employability and employer perception. Through determining the factors influencing graduates’ employment by employers and also the elements that induce employers in employing graduates, this was achieved. This research is rooted in a positivist perspective determining the relationship between graduate employability and a universities’ status. The main goal of this research was to examine to what extent employers are influenced by a higher education institution's perceived reputation when employing graduates. The linear regression model was used to predict the relationship between graduate employability (dependent variable) and the perceived reputation of the university by employers and citations of the university. This was achieved using quantitative methods. The quantitative database that this research relied on is Quacquarelli Symonds (QS) world university ranking. This research made use of descriptive data analysis as well as linear regression. The data set analysis showed citations of the institution had a significant negative relationship with the rate of employability (although this was a relatively weak relationship). The reputation of the institution and the number of international students enrolled do not affect the rate of employability. The analysed data set also showed that the number of citations of a university had a significant impact on the rate of employability at the 10% significance level. As such, higher education institutions need to consider including current market demand into their offerings to improve their graduate’s employability. , Thesis (MBA) -- Faculty of Commerce, Rhodes Business School, 2022
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