List of Titles

Catchment and River Management in Graduate Teacher Education: A Case Study of Student Teacher Learning and Teaching in the Upper uThukela Valley, KwaZulu-Natal

- Heath, Gavin Edward Craig

Authors: Heath, Gavin Edward Craig
Date: 2021-10-29
Subjects: Geography Study and teaching (Higher) South Africa KwaZulu-Natal , Watershed management Study and teaching (Higher) South Africa KwaZulu-Natal , Pedagogical content knowledge , Environmental education South Africa KwaZulu-Natal , Teacher effectiveness South Africa KwaZulu-Natal , Curriculum and Assessment Policy Statement (CAPS)
Language: English
Type: Doctoral theses , text
Identifier: http://hdl.handle.net/10962/190635 , vital:45012 , 10.21504/10962/190635
Description: This study developed as a progressive focus on a design research process towards the inclusion of new environmental knowledge in teacher education. It is centred on the clarification of pedagogical content knowledge for the teaching of catchment and river management in Geography teacher education. The study was developed as a design research case study with three phases or iterations of experiential engagement and data collection during the teaching of Postgraduate Certificate in Education students at the University of KwaZulu-Natal where I lecture Geography Education. The study’s iterative design was developed around pedagogical content knowledge refinement with curriculum knowledge analysis (phase 1) that was followed by lecture delivery and analysis (phase 2) and analysis of student engagement during fieldwork, and on teaching practice in rural classroom contexts (phase 3). Data and insights were generated across the successive stages of knowledge differentiation and teaching and learning interactions over time, and included reflection with students involved in the lectures, fieldwork and teaching practice programme. The analytical work covered a review of trajectories in new environmental knowledge, social-ecological systems, sustainability competencies, practice architecture and fieldwork pedagogy. This was done using three research lenses, namely social-ecological systems, social learning and practice architectures. All the design research and review processes served to develop, clarify and refine pedagogical content knowledge for sustainability-oriented teacher education. Thus the study conformed to the tenets of design-based research that was centred on clarification and review of pedagogical content knowledge that was carried into phases two and three. Research was focused at the nexus of pedagogical content knowledge and sustainability concerns that is necessary for the teaching of catchment and river basin management within a social-ecological systems perspective for integrated water resources management in South Africa and globally. The findings informed an illustrative model on how the research was carried out. Six design research insights and principles conclude the study and encapsulate the contribution it makes to new knowledge on how teacher education practice can be progressively aligned with new content knowledge teaching and the teaching of sustainability concerns. Specific findings in the form of six research insights indicated that the fieldworkbased teaching practice experience proved a successful learning crucible to develop sustainability competences. The cohort of student teachers passed their fieldwork teaching practice despite inadequate covering of foundational concepts in school and university. The teaching of a catchment management strategy case study was valuable in all three phases of research. A multi-contextual teaching and learning environment was successfully negotiated and navigated by the student teachers. The present Curriculum and Assessment Policy Statement does not speak to the reality on the ground, particularly in deep rural environments. A compulsory virtual Geography teacher training experience is recommended. Lastly, varied and broad responses to the noted multi-contextual challenges are needed in order to prepare and equip student teachers for the demands of the new environmental knowledge in the curriculum. Based on the groundwork provided by this study, there is scope for further research especially regarding the varied and broad responses to this new environmental knowledge in the curriculum. , Thesis (PhD) -- Faculty of Education, Education, 2021
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Baseline description of the Benthic Biotopes for two Long-Term Ecological Research (LTER) stations in Algoa Bay, Agulhas ecoregion, South Africa

- Parker-Nance, Shirley

Authors: Parker-Nance, Shirley
Date: 2021-10-29
Subjects: Benthic ecology South Africa Algoa Bay , Long-Term Ecological Research Program , Marine invertebrates South Africa Algoa Bay , Reef ecology South Africa Algoa Bay , Coastal zone management South Africa Algoa Bay , Reef fishes South Africa Algoa Bay , Ecological mapping South Africa Algoa Bay
Language: English
Type: Doctoral theses , text
Identifier: http://hdl.handle.net/10962/191680 , vital:45147 , 10.21504/10962/191680
Description: Shallow coastal marine ecosystems provide important resources to society but are increasingly under threat from anthropogenic impacts. These systems form an interface between land and sea, providing valuable resources. Global environmental change, overexploitation, habitat transformation, pollution and policies aimed at short-term socio-economic gains are driving the loss of natural resources, productivity and biodiversity. Consequently, a comprehensive and holistic understanding of the current and future states of marine ecosystems is essential. This requires insight into the processes involved in maintaining genetic, species, habitat, community and biotope diversity at an ecosystem level. An understanding of ecosystem processes and the ability to detect changes in biodiversity, biotopes, seascape composition and ecosystem functioning require observation made over time and space. In response to this need, Long-Term Ecological Research (LTER) programmes such as those established by the South African Environmental Observation Network (SAEON) supported by the Department of Science and Innovation’s (DSI) Shallow Marine and Coastal Research Infrastructure (SMCRI) collect long–term observational data from different environments and systems. This study aimed to evaluate data collected as part of the developmental phase of a newly established benthic research platform. The datasets constructed are used to develop a baseline description of the benthic biotopes of two study areas within Algoa Bay. It aimed to gain insight into the feasibility of the methods used and the value of the data and derived essential biological variables (EVB). Assessing the sustainability of the programme over time was done through a practical evaluation of the methodology to be used and the technical feasibility of data collection and analysis. It furthermore aimed to assess the data usefulness in describing biodiversity at various scales and its sensitivity in reporting change. This pilot study provides valuable insight into data collection methodologies and introduces new sampling platforms. The baseline dataset consisted of data collected during the first 18 months of the SAEON Benthic Ecosystem Long-Term Ecological Research (BELTER) platform in Algoa Bay, Agulhas ecoregion, Western Indian Ocean, South Africa. This comprised of the collection of images for 150 m2 of the researched benthic seascape and 306 stereo video data streams. The 77 760 point dataset allowed the identification of 12 substrate types, 7 biotopes, 44 sub-biotope units, 377 sessile and sedentary benthic species and 51 ichthyofauna species. The described habitat and benthic communities and the defined benthic biotopes allowed for the assessment of biotope heterogeneity and the construction of a provisional distribution map for the broader biotopes. This work includes a study into the infra- and supra-benthic ichthyofauna associated with the defined biotopes and investigates the role habitat and benthic communities play in the distribution of these fish 3 assemblages. Lastly, it assesses the value of morphological traits and diversity indices for describing and comparing abiotic and biotic components of observed systems within the shallow coastal marine seascape. This study shows that species composition differs significantly between biotopes with habitat type playing a key role in the composition of the benthos. Substrate type, consolidated or unconsolidated, depth and the composition of the soft sediment is the most important determining factors. The White Sands Reef station has a higher species diversity than the St Croix Island Complex station with a higher percentage cover associated with the hard substrate. The dissimilarity between biotopes and communities are generally high although similarity within the biotopes or communities was found to be relatively low. This was considered indicative of high heterogeneity within the biotopes and a patch or mosaic-like distribution of communities within the broader biotope. A fine-scale a posteriori analysis of the data collected confirmed the high heterogeneous nature of both habitat and communities within the broader biotope. The description of the abiotic and biotic variables resulted in the identification of a diverse suite of biotope subunits. The character of the biotope hinges not only on the composition of the substrate and biota present but the contribution of smaller distinct biotopes subunits, their distribution and representation within broader biotopes and the degree these are shared with other broader biotopes. The distribution of these biotope units at different scales is believed to be important in understanding inherent diversity, niche partitioning and connectivity within a highly heterogeneous seascape. Ichthyofauna associated with the broader biotopes were indicative of the substrate type. Low profile reef systems with interspaced sandy stretches supported both reef fish and those typically associated with sandy substrates. Benthic biotopes associated characteristically with higher profile reef systems and less sand or soft sediment were mainly utilized by reef-associated fish species. Substrate type, depth and seasonality were found to be important factors in the observed composition and distribution of ichthyofauna over the seascape. Although fish species were found to have a wide distribution and made use of multiple biotopes the average abundance of the species within the observed assemblages differed. Analysis of ichthyofauna species composition indicated that observed fish assemblages were homogeneous within five of the seven biotopes. Broader biotopes that were found to be significantly different between sample locations are characterised by a diverse complement of biotope subunits and are highly heterogeneous. Traits and diversity indices are important tools for assessing and comparing different systems within the seascape, both spatially and temporally. The classification of the biota into broader phylogenetic groups indicated a significant difference between biotopes. This is especially useful when detailed 4 analysis or species identification is not possible or the skill set is not available. Morphological traits included in this study informed on the physical structure of the communities present and in combination with substrate type provided insight into the three-dimensional structure of the biotope. Species diversity, abundance, density estimates and the Shannon-Weiner diversity index were found to be the most useful diversity indices characterising and comparing biotopes. This was less so for ichthyofauna. Significant differences in the number of species observed were evident only between consolidated and unconsolidated dominated substrates. Although there was no significant difference in the number of individuals observed, both the Shannon-Weiner and Simpson Diversity indices were able to highlight differences in the fish assemblages observed for the different biotopes. The data collected, although permitting a comprehensive baseline assessment of the benthic environment for two research stations within the SAEON Algoa Bay LTER Sentinel Site, is temporally limited. The ichthyofauna dataset used was small and it is understood that the addition of length-frequency analysis of observed ichthyofauna will benefit our understanding of the biotope use by infra- and supra-benthic fish species over their life history within the larger seascape. Seasonal differences were evident and it is expected that datasets spanning several years, including LTER stations within different marine ecosystems types, will provide valuable insights on system dynamics in the short and long term both spatially and temporally. This study is the first attempt to evaluate the methodology developed and data collected in the South African Environmental Observation Network’s, Elwandle Coastal Node as part of the Shallow Marine and Coastal Research Infrastructure Benthic Ecosystem Long-Term Ecological Research (BELTER) platform. Newly designed and developed sample equipment and a sampling regime allowed for the collection of data on a long-term basis. The study was successful in the description of the biotope and biotope subunits for two research stations in Algoa Bay. It permitted the construction of comprehensive species lists for both benthic sessile and sedentary biota and the associated ichthyofauna. The subset of data used was successful in reporting on both spatial and temporal change. This work demonstrates that in the absence of detailed species identifications, traits may be used to describe habitat and community structure and report on abiotic and biotic biotope characteristics. This study furthermore allowed for the comparison of a comprehensive suite of diversity indices highlighting indices that may be especially useful in routine BELTER reporting. , Thesis (PhD) -- Faculty of Science, Ichthyology and Fisheries Science, 2021
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Date Issued: 2021-10-29

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Ubomi Sisilonda: Ingqokelela Yemibongo

- Manxiwa, Mzuvukile

Authors: Manxiwa, Mzuvukile
Date: 2021-10-29
Subjects: Xhosa poetry 21st century , Xhosa poetry History and criticism , Buzani, Nompumezo Criticism and interpretation , Gwala, Mafika Pascal, 1946-2014 Criticism and interpretation , Xhosa language Rhythm , Xhosa language Rhyme , Creative writing (Higher education) South Africa
Language: Xhosa
Type: Master's theses , text
Identifier: http://hdl.handle.net/10962/192265 , vital:45210
Description: Le thisisi igxila kwiintlobo ngeentlobo zokubhala imibongo. Iqamele kakhulu kwilinge lokubhodla isingqala isebenzisa isandi sengoma yesiNtu komameleyo, oko kukuthi isondele kwi-lyric poetry ngolwasemzini. Oku kufezwe ngokusebenzisa isingqisho, imfano-zandi, imvano-siqalo nemvano-siphelo, njalo njalo. Iinjongo zale thisisi kukongeza kuncwadi lwesiXhosa nakwinkcubeko yesiNtu, nokuhlab’ ikhwelo elikhuthaza uluntu ukuba lubuyele kwinkcubeko yesiNtu, ukuhlonipha imo-ntlalo yabo nokuxabisa abantu ababhinqileyo. Umbali ophum’ izandla kuncwadi lwesiXhosa, uNompumezo Buzani, umsebenzi wakhe ngakumbi kwenye yeencwadi zakhe ethi Imida, ube nefuthe elikhulu kulo msebenzi, ngakumbi indlela athe walusebenzisa ngayo ulwimi; ngesimbo seli xesha ukudlulisa umyalezo ngolwimi oluqhelekileyo, lungafihlakali kodwa lube namandla okudlwengula umxhelo kulowo ufundayo. Ndeyame nakwincwadi kaNgcwabe, uKhala Zome; undikhumbuzile ngemibongo yakhe eyayame kakhulu kwimo yentlalo yamandulo, kunye nemibongo kaMafika Gwala kuJolinkomo, efana nale: The Children of Nonti kunye noThe Shebeen Queen. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
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Date Issued: 2021-10-29

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A modelling approach to the analysis of complex survey data

- Dlangamandla, Olwethu

Authors: Dlangamandla, Olwethu
Date: 2021-10-29
Subjects: Sampling (Statistics) , Linear models (Statistics) , Multilevel models (Statistics) , Logistic regression analysis , Complex survey data
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10962/192955 , vital:45284
Description: Surveys are an essential tool for collecting data and most surveys use complex sampling designs to collect the data. Complex sampling designs are used mainly to enhance representativeness in the sample by accounting for the underlying structure of the population. This often results in data that are non-independent and clustered. Ignoring complex design features such as clustering, stratification, multistage and unequal probability sampling may result in inaccurate and incorrect inference. An overview of, and difference between, design-based and model-based approaches to inference for complex survey data has been discussed. This study adopts a model-based approach. The objective of this study is to discuss and describe the modelling approach in analysing complex survey data. This is specifically done by introducing the principle inference methods under which data from complex surveys may be analysed. In particular, discussions on the theory and methods of model fitting for the analysis of complex survey data are presented. We begin by discussing unique features of complex survey data and explore appropriate methods of analysis that account for the complexity inherent in the survey data. We also explore the widely applied logistic regression modelling of binary data in a complex sample survey context. In particular, four forms of logistic regression models are fitted. These models are generalized linear models, multilevel models, mixed effects models and generalized linear mixed models. Simulated complex survey data are used to illustrate the methods and models. Various R packages are used for the analysis. The results presented and discussed in this thesis indicate that a logistic mixed model with first and second level predictors has a better fit compared to a logistic mixed model with first level predictors. In addition, a logistic multilevel model with first and second level predictors and nested random effects provides a better fit to the data compared to other logistic multilevel fitted models. Similar results were obtained from fitting a generalized logistic mixed model with first and second level predictor variables and a generalized linear mixed model with first and second level predictors and nested random effects. , Thesis (MSC) -- Faculty of Science, Statistics, 2021
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Educating learners with special educational needs in special schools: an interpretative phenomenological study of teachers’ experiences

- Matebese, Sibongile

Authors: Matebese, Sibongile
Date: 2021-10-29
Subjects: Children with disabilities Education South Africa , South Africa. Department of Education , Inclusive education South Africa , Special education teachers South Africa , Special education teachers South Africa Interviews , Phenomenological psychology
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10962/192270 , vital:45211
Description: In 2001, the Department of Education introduced a policy known as White Paper 6: Special Needs Education: Building an Inclusive Education and Training System. This policy was a response to the worldwide call for inclusive education. It aimed to ensure that all learners with special educational needs (LSEN) and who experience barriers to learning are accommodated and taught in mainstream schooling contexts. Implementation of this policy in South Africa has been a challenge, and special schools continue to exist. While research has explored the experiences of teachers who teach LSEN, such studies have focused on teacher experiences in mainstream schools. A few international and South African studies have explored teacher experiences of teaching LSEN in special schools; however, these explore specific aspects of teacher experiences and are outdated. Based on this premise and drawing on a phenomenological approach, this study sought to explore and understand the experiences of teachers who teach LSEN in special schools. Using the semi-structured interview, eight teachers teaching in special schools in a city in the Eastern Cape were recruited and interviewed. Five superordinate themes emerged from the shared experiences, namely, ‘personal commitment and the need for a balance’, ‘recognising the learner at the centre’, ‘the importance of a holistic approach’, ‘the ups and downs of teaching LSEN’, and ‘support is available but limited’. Within these themes, the teachers experienced teaching LSEN as involving more than teaching, as a role guided by the learner, as collaborative, associated with positive experiences and challenges, including an endeavour that they are adequately supported in but simultaneously require more support for. In reflecting on this analysis, this study argues that special schools are necessary; teaching LSEN in special schools is important to teachers, and they feel a responsibility for it. Recommendations for future research include repeating the present study with a different population and methodology, interviewing parents of LSEN and LSEN themselves to gain further insights into special schooling. The study makes key recommendations for special needs education to help ensure that such an educational system is sustained as inclusion is a long way from being realised. , Thesis (MA) -- Faculty of Humanities, Psychology, 2021
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Employee views on organisational effectiveness of Chinese organisations operating in Kenya

- Mlotshwa, Minenhle Petronella

Authors: Mlotshwa, Minenhle Petronella
Date: 2021-10-29
Subjects: Organizational effectiveness Kenya , Corporate culture Kenya Cross-cultural studies , China Foreign economic relations Kenya , International business enterprises Kenya , International business enterprises Personnel management , Bilingual communication in organizations Kenya , Religion in the workplace Kenya Cross-cultural studies , Work ethic Kenya Cross-cultural studies
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10962/191898 , vital:45177
Description: Over the years there has been a growing interest in the relations between Africa and Asia. This is attributed to what is perceived as increasing Chinese influence and presence in Africa. During the past decades, China has experienced rapid economic growth and expansion which has contributed to its need for additional resources and expanding its geographic footprint into Africa and especially Kenya. The growing presence of Chinese organisations in Africa has also faced challenges. Chinese organisations operating in Kenya have been cited as facing cultural challenges, human resource management issues and external pressures which affect Chinese organisations thus impacting organisational effectiveness and performance. While there has been an abundance of research conducted at a macro level, mainly anecdotal knowledge on Chinese organisational values and management, little information exists at the organisation and community level. This study aimed to contribute an in-depth understanding of Chinese and Kenyan employee relationships in organisations at a micro level. Furthermore, this study assesses employees’ views on organisational effectiveness in a cross-cultural research setting of selected Chinese organisations operating in Kenya using the Burke-Litwin model (1992) of organisational effectiveness. This study is qualitative in nature within the interpretivistic research paradigm and used a case study approach to generate detailed comprehensive understanding of the phenomenon under investigation. Two Chinese organisations specialising in importing and exporting of diverse products, which had expanded its operations to Kenya in order to reach Africa’s growing consumer markets were selected for this study. The selected organisations were chosen under the premises that they had been operating in Kenya for more than 20 years, they are reputable organisations in their industries and were international role players. Non-probability convenience sampling was used to select the two organisations who were willing to participate. Purposive sampling was used to identify employees from different job levels and types of work in the selected organisations who were willing to participate in this study. Data was collected by means of face-to-face open-ended semi-structured interviews, with five Chinese and 12 Kenyan employees. The findings of this study were guided by the dimensions of the Burke-Litwin model, comprising the external environment, transformational dimensions (including mission and strategy, leadership and organisational culture) and transactional dimensions (including management practices, organisational structure, systems [policies and procedures], motivation, work climate, task requirements and individual skills and abilities). Based on the findings, organisational culture was the dominant theme that had a large influence on the organisational performance. Within the context of organisational culture, the main challenges faced by employees were religious, work ethic and communication barriers. Leadership and the organisational structure set by senior managers was also impacted by culture. It is evident that the Chinese organisations are dominated by Chinese employees at senior managerial levels – except for one Indian Kenyan manager – and non-managerial levels are dominated by Kenyan employees. Between these two managerial levels there is lack of trust as well as trade union interference favouring Kenyan employees. Leadership of the selected organisations aimed at recruiting candidates who have the necessary skills to contribute toward organisational effectiveness and performance. However, recruited Kenyan employees indicated that they require strategy visibility, effective communication, and structured processes in order to be effective. Despite challenges faced, Chinese and Kenyan employees both strongly agree with and support the efforts of management for providing training and development and creating an environment that accommodates personal growth. The external environment has exerted pressure on the said Chinese organisations. The Kenyan trade unions favour Kenyan employees and place huge pressure on Chinese management. In addition the trade unions bribe locals while making it difficult for Chinese organisations operating in Kenya to conduct business. Through the empirical development of organisational-level research on the case of Chinese organisations operating in Kenya, insightful management knowledge was gathered and shared to assist Chinese and Kenyan employees in their individual and organisational performance. , Thesis (MCom) -- Faculty of Commerce, Management, 2021
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Date Issued: 2021-10-29

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The well-being implications of Urban Natures among Black Urban Dwellers in the Eastern Cape

- Walsh, Lindsey Sara

Authors: Walsh, Lindsey Sara
Date: 2021-10-29
Subjects: Apartheid South Africa Eastern Cape , Decolonization South Africa Eastern Cape , Urban Black people South Africa Eastern Cape , Quality of life South Africa Eastern Cape , Well-being South Africa Eastern Cape , Rural-urban migration South Africa Eastern Cape , Urban ecology (Sociology) South Africa Eastern Cape , Land use, Urban South Africa Eastern Cape , City and town life South Africa Eastern Cape , Sociology, Urban South Africa Eastern Cape , Nature Social aspects South Africa Eastern Cape
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10962/192966 , vital:45285
Description: Throughout the world, urbanisation is at an all-time high. It is estimated that two-thirds of the global population will be living in urban centres by 2030. The highest urban growth rates are currently found in sub -Saharan Africa, however, approximately 70% of urban residents in Sub-Saharan Africa reside in informal settlements. Such processes have resulted in reduced areas of natural space and biodiversity. While the benefits of exposure to and experiences of nature to human well-being and quality of life are increasingly being acknowledged, these links are largely understood through a western lens, where nature and culture are dichotomised. The implications of this are that the types of nature(s) that are made available in urban areas are designed to provide opportunities for urban residents to only engage in recreational and relaxation activities within such places. However, among indigenous and non-westernised communities, culture is a dynamic and holistic entity, deeply rooted in the constructions of nature. Very few studies from the global south have entered this dialogue. In response, this study, conducted amongst Xhosa speaking urban residents living in two medium-sized towns, was undertaken to explore the connections and meanings they attributed to nature(s) and how their engagement in such places contributed to their sense of well-being. This study found that strong connections and meanings to nature still exist. Many of these relate to personal experiences which are given meaning through local understandings and associations which are deeply embedded within cultural practices and rituals. Engagement and or memories of such are strongly associated with a sense of well-being often only experienced in rural areas. In such contexts, well-being is also understood as a holistic concept that is underpinned by these nature-culture connections. Within an urban context, the benefits of such connections are hindered by the types of nature(s) found in these areas as well as high levels of crime and the poor management of such places. , Thesis (MA) -- Faculty of Humanities, Anthropology, 2021
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Genetic relationships between migmatites and the Swartoup Pluton in the Swartoup Hills (central Namaqua Belt)

- Schmeldt, Graeme Alvin

Authors: Schmeldt, Graeme Alvin
Date: 2021-10-29
Subjects: Migmatite South Africa Northern Cape , Intrusions (Geology) South Africa , Metamorphic rocks South Africa Northern Cape , Metamorphism (Geology) South Africa Northern Cape , Onseepkans (South Africa) , Namaqualand (South Africa) , Anatexis , Swartoup , Koenap
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10962/192162 , vital:45201
Description: The central Namaqua Metamorphic Complex can be characterised by long-standing high-temperature (up to granulite/amphibolite facies) conditions between _ 1300 and 1100Ma, inevitably resulting in widespread metamorphism and plutonism. Hosted within a NW–SE striking antiformal structure about 40 km east of Onseepkans, Northen Cape, South Africa, in the Swartoup Hills, lies the Swartoup Pluton. The Swartoup Pluton was sampled and described in hand specimen and thin section. The study area was photographed, with all data presented in this study. The various rock types are readily discerned in the field due to their characteristic weathering colours and overall fabrics. The Swartoup granodioritic body is hosted within metasediments of the Bysteek and Koenap Formations, of the Arribees Group. The package was later intruded by another later granitoid, the Polisiehoek Granite-gneiss. The Bysteek Formation, a wall rock to the S-type Swartoup Pluton, reacted at the contact with the igneous body resulting in localised feldspathic granites and granodiorites with prominent, often euhedral, garnet, pryoxene and titanite. The Swartoup Pluton is divided into two subgroups. The first is characterised by higher P2O5 contents, _ 0.3 – 0.4 wt.%, shown with a narrower constraint on its Rb contents, _ 80 – 160 ppm, than the second, with _ 0.14 – 0.4 wt.% P2O5 and 20 – 310 ppm Rb. Meanwhile the Polisiehoek Granite-gneiss shows _ 50 – 420 ppm Rb and _ 0.04 – 0:1 wt% P2O5. As a whole, the Swartoup Pluton is characterised by somewhat elevated CaO concentrations (_ 1.5 – 6.0 wt.%), relative to calculated averages of granites (1.8 wt.% CaO, Le Maitre, 1976) and granodiorites (3.9 wt.% CaO, Le Maitre, 1976). Whilst most of the Swartoup specimens were classified as granodiorites, some orthopyroxene-bearing monzodiorite and orthopyroxenebearing monzonite were locally found and sampled. However, much of the body appears to be granodioritic to granitic in composition. The Polisiehoek Granite-gneiss is characterised by its orange-brown weathering colour in the field, sheared texture, lower P2O5 and higher total alkali content than the Swartoup Pluton. The Polisiehoek Granite-gneiss is a highly fractionated S-type granite, as shown by plots of (a) (Na2O + K2O)/CaO and (b) FeOT/MgO versus Zr + Nb + Ce + Y (Whalen et al., 1987; Zhang et al., 2019) and also of (c) (Al2O3 + CaO)/(FeOT + Na2O + K2O) versus 100 × (MgO + FeOT + TiO2)/SiO2 (after Sylvester, 1989). Classification schemes identify the Polisiehoek Granite-gneiss as either a granite (TAS diagram, after Middlemost, 1994) or alkali granite (R1R2 diagram, after De la Roche et al., 1980). , Thesis (MSc) -- Faculty of Science, Geology, 2021
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Date Issued: 2021-10-29

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Competing policy imperatives in Post-Apartheid South Africa: An analysis of the effects and larger significance of ESKOM restructuring on the South African automotive industry, 2005-2014

- Sibuyi, Lucas Nkosana

Authors: Sibuyi, Lucas Nkosana
Date: 2021-10-29
Subjects: Eskom (Firm) , South Africa Colonial influence , Electric power Conservation South Africa , Electric utilities Government ownership South Africa , Electric utilities Privatization South Africa , Import substitution South Africa , Government business enterprises South Africa
Language: English
Type: Doctoral theses , text
Identifier: http://hdl.handle.net/10962/192911 , vital:45278 , 10.21504/10962/192911
Description: The state has played an indispensable, major role in the industrialisation of South Africa, and its transformation from an economy of agriculture and mining to one based on manufacturing and services by the 1970s. Large state-owned corporations in communications and transportation, finance, industry and power have been key to this process, which also involved an extensive (and racist form of) import substitution industrialisation (ISI) from the 1920s. The 1970s saw a shift towards neoliberal policies, first under the National-Party-led apartheid government and then under the African-National-Congress-led democratic government formed in 1994. Since the 1980s, this restructuring has profoundly affected state-owned enterprises (SOEs), including the monopoly electricity utility ESKOM, and manufacturing industries, such as the automotive sector. This thesis examines the evolution of and interaction between different areas of neoliberal policy, and their evolution over time through a consideration of the relationship between the restructuring of SOEs and manufacturing, with a focus on ESKOM and autotomotives respectively. Relying on interviews with senior officials, policymakers, union leaders and industrialists, as well as primary documents, the study examines the responses of OEMs in South Africa (BMW, Ford, General Motors, Mercedes Benz/Daimler, Nissan, Toyota and Volkswagen) to ESKOM’s actions, and analyses the root of these actions. It argues that while restructuring has been framed by a common framework, policy development and implementation is not coordinated or cohesive. ESKOM, for example, gutted investment in electricity and maintenance generation capacity to become profitable and create space for Independent Power Providers (IPPs) – neoliberal measures for which it was rewarded and lauded. This took place at a time when national policy emphasised the need to grow manufacturing and attract direct investment by creating an investor-friendly climate resting on infrastructure. It also took place when the Department of Trade and Industry (DTI) rolled out highly successful plans – also praised and rewarded – to help adjust automotives to open markets; the sector grew much larger than under ISI, while other sectors like textiles collapsed. ESKOM’s measures, however, led to a rapid decline in the capacity and stability of the power system, and directly contradicted the drive to expand and globalise manufacturing, in which automotives was now the leading edge. Corruption in the utility worsened, much of it through subcontracting measures rooted in neoliberal reforms, but this did not cause the basic problems. It is argued that this situation of competing policy imperatives reflects deeper, long-term problems in the South African state, including contradictory policies, uneven capacity and a lack of coordination. For example, there was no coordination between the DTI and stakeholder departments that regulate ESKOM, being the shareholder ministry, the Department of Public Enterprises (DPE) and its policy ministry, and the Department of Mineral Resources and Energy (DMRE). These types of problems did not start postapartheid, and post-1994 reforms have not adequately addressed them. What exists is not a “developmental” state, as policymakers hope, but a fractured state of an intermediate type that combines “developmental” and “predatory” features in a oneparty dominant system in which lines between ruling party and state blur, and state resources are leveraged for elite class formation. Such was the case under apartheid skippered by the NP, with Afrikanerisation, and it continues today post-apartheid under the ANC with BEE. Major reforms are needed, but not just in SOE governance or budgets, as many have suggested. If we are to take the nation forward, the basic design of the state must be reformed. The state needs professionalised, coherent policy-making and implementation, proper coordination of state entities and hard decisions. It should manage high levels of public infrastructure, guarantee political stability and credit ratings, and provide policy certainty and predictability. Without big reforms it will remain a chronic underperformer. , Thesis (PhD) -- Faculty of Humanities, Sociology, 2021
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Date Issued: 2021-10-29

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Application of environmental magnetism to trace sediment sources contributing to Kruger National Park reservoirs

- Miller, Jordan Katherine

Authors: Miller, Jordan Katherine
Date: 2021-10-29
Subjects: Geomagnetism South Africa Kruger National Park , Sediments (Geology) South Africa Kruger National Park , Sedimentation and deposition South Africa Kruger National Park , Petrology South Africa Kruger National Park , Sediments (Geology) Magnetic properties South Africa Kruger National Park
Language: English
Type: Doctoral theses , text
Identifier: http://hdl.handle.net/10962/192842 , vital:45269 , 10.21504/10962/192842
Description: Sediment source fingerprinting using environmental magnetism has successfully differentiated between sediment sources in different regions of South Africa. The method was applied in the natural landscape of the Kruger National Park to trace sediment sources delivered to four reservoirs (Hartbeesfontein, Marheya, Nhlanganzwani, Silolweni) whose contributing catchments were underlain by a range of igneous, metamorphic, and sedimentary rocks. This research attempted to evaluate the impact of vegetation, lithology, and particle size controls on the ability of magnetic signatures to discriminate between lithology-defined potential sources. Potential source samples were collected from each lithology present in all catchments, except for the Lugmag catchment where the lithology was uniform, but the vegetation type varied significantly between woodland and grassland. One sediment core was taken in each of the four catchment reservoirs where there was more than one lithology present in order to unmix and apportion contributing sediment sources. Sampling time in the field was often restricted to short periods, dependent on anti-poaching activities and movement of free-roaming wildlife across the Park. This occasionally led to the sub-optimal collection of enough source samples to capture source signature variability. Mineral magnetic parameters were unable to discriminate between vegetation-defined sediment sources in the Lugmag catchment (homogenous underlying lithology) but were able to discriminate between lithology-defined sediment sources (to varying degrees) in the other four catchments. The contributions of each lithology-defined sediment source were estimated using a straightforward statistical protocol frequently used in published literature that included a Mann-Whitney U or Kruskal-Wallis H test, mass conservation test, discriminant function analysis, and an (un)mixing model. A contribution from each lithology source to reservoir sediment was estimated. Connectivity was a significant factor in understanding erosion in each of the catchments. Both longitudinal (e.g., drainage density) and lateral connectivity (e.g., floodplain - river) were important. Travel distance of eroded sediment to reservoirs was also an essential element in two of the four catchments. There are no defined floodplains, so channel bank soils are very similar to the catchment soils. Therefore, channel bank storage potential would be similar to the storage potential within the catchment. Vegetation played a crucial role in protecting soils, by reducing ii erosion potential as well as trapping and storing sediment, thereby interrupting lateral connectivity. Underlying geology and soils are determining factors of vegetation type and density. A published study estimated catchment area-specific sediment yields for different KNP catchments, including the Hartbeesfontein, Marheya, Nhlanganzwani and Silolweni catchments. The published data was used in combination with the (un)mixing model source contribution estimates of this thesis to determine specific sediment yields by lithology, i.e., for each catchment source. The polymodal particle size characteristics of the sample material led to an investigation into particle size controls on the ability of magnetic signatures to discriminate between potential sources. Due to time constraints, only the Hartbeesfontein and Marheya catchments were tested for grain size differences. For each catchment, one bulk sample was created for each lithology source. This bulk sample was divided into 10 subsamples. The samples were then fractionated into four particle size fraction groups: coarse (250 – 500 μm), medium (125 – 250 μm), fine (63 – 125 μm), and very fine (<63 μm). Reservoir samples were also bulked to create 10 down-core samples for each reservoir, and the samples were also fractionated into the four fraction groups. The same statistical protocol was applied to the fractionated samples and contribution estimates were obtained by lithology for each particle size fraction group. The goodness of fit and uncertainty of the (un)mixing model varied in each catchment, with the two measures of accuracy often showing an inverse relationship. The fractionated modelling estimated the same primary source in the two catchments as in the unfractionated modelling. However, additional information on the secondary and tertiary sources was obtained. Connectivity remained a significant factor in interpreting the results of the fractionated analysis. Specific sediment yields were estimated for each catchment source per particle size fraction group. These sediment yields provided a deeper understanding of sediment transport through a catchment and which particle size groups are most important in catchment erosion. An original contribution to research was made by estimating source contribution estimates for the four reservoirs, quantifying sediment yields for each catchment lithology and then for each catchment lithology by particle size. Mineral magnetic tracing of the catchments was applied for the first time in this region of South Africa. , Thesis (PhD) -- Faculty of Science, Geography, 2021
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Date Issued: 2021-10-29

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Museums for the Planet: Critical Realist Philosophy and the Possibility of an Eco-decolonial Museology

- Jeffery, Thomas Carnegie

Authors: Jeffery, Thomas Carnegie
Date: 2021-10-29
Subjects: Museums Management , Critical realism , Ontology , Decolonization , Organizational change , Social ecology , Eco-decolonial
Language: English
Type: Doctoral theses , text
Identifier: http://hdl.handle.net/10962/192692 , vital:45251 , 10.21504/10962/192692
Description: This study introduces dialectical critical realism into museology as a philosophical underlabourer for the development of new theoretical potentials for the transformation of museum practice. The idea of the museum is in a moment of fluidity evident in emergent decolonial and ecological perspectives and in the International Council of Museum’s process of redefinition of the museum. The potential to reimagine the museum lacks a coherent philosophical and theoretical foundation. The persistence of museological dualism separates the social from the ecological and absents the emergence of relational modes of thinking and practice. This study conceives an ecological-decolonial or eco-decolonial mode of museology that is disruptive of dualism and generative of relationality, and is thus generative of agency for deeper, more effective and enduring social-ecological justice. The core of this thesis is the development of the eco-decolonial mode of museology through the DCR onto-axiological chain or ‘MELD’ schema. At 1M a depth ontological analysis augmented by interviews with key informants establishes a dialectic of society and ecology in the museological context. 1M surfaces capitalism and the implicit neoliberal ontology of museology as deep causal mechanisms of the 2E persistence of museological human-nature dualism. The paradox of ‘emancipatory neoliberalism’ is a policy-practice contradiction that absents potentials for transformation of the museum and that is held in place by the grounding ontological activity of museology, collection. The 2E perspective on absences enables the emergence of new transformative pathways towards the 3L vision of the eco-decolonial mode of museology as a (4D) new way of thinking and working to resolve neoliberal restrictions. The fundamental 4D change envisioned for museum philosophy, theory and practice is an ontological transformation from traditionalist human-nature dualism to a progressive human-nature dialectic. A case study considers instances where museum workers exercised the agency to expand practice in this way. Future work using the expansive learning methodology of Change Laboratories will develop and implement the potentials generated by the onto-axiological chain for the eco-decolonial mode to bring real change to traditional, dualist museum practice, in order to ensure the relevance and the agency of the museum as a social structure in and for a changing world. , Thesis (PhD) -- Faculty of Education, Education, 2021
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Date Issued: 2021-10-29

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A sustainability practices educational intervention in response to environmental matters of concern amongst Makhanda youth

- Musiyiwa, Fungayi Lona

Authors: Musiyiwa, Fungayi Lona
Date: 2021-10-29
Subjects: Sustainable living South Africa Makhanda , Social learning South Africa Makhanda , Eco clubs South Africa Makhanda , Environmental education Activity programs South Africa Makhanda , Youth in development South Africa Makhanda , Youth Social conditions
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10962/188364 , vital:44747
Description: This study responded to urbanisation as one of the challenges affecting youths’ lifestyles in this century. Children and youth around the world are living in overpopulated, polluted and unsafe environments which fail to produce opportunities for learning, play and recreation (World Health Organisation [WHO], 2017). This study explored these issues in the context of Makhanda with an intervention to engage youth in sustainability practices, to help them to strengthen sustainable lifestyles. The participants in this research were members of two eco-clubs from two schools in Makhanda ranging in age from 12-14 years (primary school) and 15-17 years (high school). The study explored how learning processes within a club intervention contributed to the well- being of participating youth and their capacity to live sustainable and fulfilling lives. The research explored (with participants) eight themes as matters of concern namely, ‘education’, ‘home-life’, ‘energy use’, ‘mobility’, ‘leisure and communication’, ‘waste’, ‘water’ and ‘food’. Detailed case narratives exploring Wals’ social learning stages were used to explore the themes. These themes were explored through photo narratives of the youths’ lives and matters of concern in sustainability issues, risks and practices emanating from the Makhanda context. The pedagogical framework for the intervention was guided by Wals’ social learning framework for mobilizing sustainability practices. Social learning interaction took place through all the stages of the framework and the challenges and potentials of the educational intervention were explored in relation to each stage. From the six themes suggested above the youth chose food and water as themes to take forward as a response project. The project pursued was a vegetable garden in which the youth were actively engaged in order to seek and try out sustainable ways of living. An interpretive approach was used within the interpretive paradigm. Qualitative data were generated through focus group discussions, observations, individual interviews and document analysis. Practice architectures theory was used analytically to explore the dynamics of the emergent sustainability practices initiated by the eco-club youth. I used it as a change method and a tool for initiating social learning actions for ‘sustainability practices’ projects. The study indicated that the youth’s key challenges affecting sustainability of their lifestyles are: lack of access to basic infrastructure, recreational facilities, electricity supply, transport, security and water. In this study, it was clear that much of the youth’s involvement in these matters of concern and sustainability issues was at the level of participating in the six themes through Wals’ social learning processes. This allowed youths to develop their knowledge and skills on how to participate in the gardening project rather than simply focusing on the environmental matters of concern in question. The Handprint Resource Books have been designed for educators who are looking for practical ideas to work with in the learning areas of the National Curriculum. The focus is on sustainability practices that can be taken up within the perspective that each learning area brings to environment and sustainability concerns. The use of the Handprint Resource Books promoted active youth participation and interaction encouraging youth to be reflective thinkers, which led to understanding of the issues and the sustainability practices that emerged during the discussions. The Handprint Resource Books focused on sustainability practices within the learning area of environment and sustainability concerns. Due to her facilitation skills, an environmental expert’s presentation on a sustainability topic enabled youths to select the intended project. The involvement of youth in the implementation of the vegetable garden as a sustainability practice empowered youth to be more confident in engaging in a collective action for change as they developed the capability to share and start their own vegetable gardens at their homes. , Thesis (MEd) -- Faculty of Education, Environmental Learning Research Centre, 2021
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Date Issued: 2021-10-29

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An evaluation of the impact of the Rhodes University Master of Education in Mathematics Education Programme in Namibia from the perspectives of its graduates

- David, Johannes

Authors: David, Johannes
Date: 2021-10-29
Subjects: Master of education degree Namibia , Rhodes University. Department of Education , Mathematics Study and teaching , Critical thinking , Master of education degree Evaluation , Career development Namibia , Educational change Namibia , College students Attitudes
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10962/191942 , vital:45181
Description: Rhodes University (RU) has been offering a MEdME (Masters in Education, Mathematics Education) degree in Namibia for over 12 years without evaluating its success and impact. This study aimed to evaluate the MEdME programme’s impact on the graduates and on mathematics education in Namibia from the perspectives of its graduates. The study also evaluated the factors that enabled or limited the impact of the programme from the perspective of RU staff members. A three-phased research study was implemented to achieve this. Phase I was a MEdME theses audit to analyze what each graduate researched which then guided the sampling process. Phase II was a distribution of a questionnaire to willing MEdME graduates to elicit their views about the programme's impact. In Phase III, selected graduates were interviewed to follow up on the questionnaire. The RU academic staff members were also interviewed about the programme's design and rationale, as well as their perspectives on its impact on graduates' professional lives. The study found that graduates believed that the programme made them more critical reflexive practitioners (CRPs) who: are now self-introspective, can reflect in context and are competent researchers. This is a sign of the programme attaining its objectives of developing and growing CRPs and graduates, who have advanced in their fields, including their ability to do research. The programme also created opportunities for graduates to study further and/or publish papers. The programme further opened up opportunities for graduates’ promotion into positions of influence in the Ministry of Education where they can positively impact on mathematics education transformation in Namibia (METN). The graduates consequently noticed improvements in some areas but they also noticed room for improvement in other areas of mathematics education in Namibia. This study therefore suggests that more mathematics teachers study further, improve their research capacity and contribute more to METN. The study also suggests a national campaign to increase mathematics teachers' content knowledge. Furthermore, the programme should reintroduce coursework to address students’ subject content knowledge. RU is also advised to explore offering a Professional MEd in Namibia for students who want to focus more on improving their mathematics content knowledge. It is also proposed that Namibia establish a research bank where researchers can upload their theses for wider dissemination. , Thesis (MEd) -- Faculty of Education, Education, 2021
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Date Issued: 2021-10-29

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Genetic connectivity of the roundjaw bonefish (Albula glossodonta) in the Southwest Indian Ocean

- Talma, Sheena Claudia Aisa Lydie

Authors: Talma, Sheena Claudia Aisa Lydie
Date: 2021-10-29
Subjects: Bonefish Mauritius , Bonefish Seychelles , Bonefish Genetics , Bonefish Habitat , Bonefish Geographical distribution , Bonefish Larvae Dispersal , Genetic markers , Cytochrome b , Fish populations Mauritius , Fish populations Seychelles , Marine ecotourism , Saltwater fly fishing , Bonefish fisheries Catch effort
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10962/192174 , vital:45202
Description: The Southwest Indian Ocean (SWIO) islands of Mauritius and Seychelles are both highly dependent on tourism and fisheries for their economies. One of the growing ecotourism sectors is saltwater fly fishing, an industry based on catch-and-release fishing for a host of species, including bonefishes. Bonefishes (Albula spp.) have received significant research attention in the Pacific and Atlantic Oceans, with only sporadic research conducted in the Indian Ocean. My project aimed to investigate the genetic connectivity of the roundjaw bonefish (Albula glossodonta) in two island states (Seychelles and Mauritius) within the SWIO using a mitochondrial genetic marker (cyt-b) and next generation sequencing (ddRADseq). Samples collected were grouped based on their spatial distribution. The Seychelles consisted of four island groups (Inner Island Group, Aldabra Group, Amirantes and Alphonse Group, and Farquhar Group) whereas Mauritius was represented by one island group (Saint Brandon). Genetic analyses were undertaken between and within each of these groups. Mitochondrial cytochrome-b identified two species of bonefish: Albula glossodonta and Albula oligolepis; the latter was only genetically identified from the Inner Island Group. I hypothesise that this is due to habitat partitioning, with A. oligolepis being a deeper dwelling bonefish species compared to A. glossodonta, which occupies shallow water habitats such as sand flats, atoll lagoons and reef flats. Neutral SNP loci revealed a panmictic pattern of distribution for A. glossodonta throughout the Seychelles Island groups but showed a pattern of weak structure between Seychelles and Mauritius. Genetic diversity indices such as allelic richness, showed low diversity across the sampling sites (AR range: 1.761-1.889). Population structure tests such as pairwise FST showed low but significant population structure. The highest FST indices were recorded between the Aldabra and Farquhar Groups, as well as the Aldabra and Saint Brandon Groups (0.044 ± 0.000 and 0.040 ± 0.000, respectively). Descriptive tests such as PCA and DAPC showed similar trends, whereby Saint Brandon clustered separately from the other samples from the Seychelles Island groups. However, these trends were Abstract seen at very low variations (PCA axes 1 and 2 accounted for only 2.0 and 1.9 % of the total variation, respectively). A population assignment test grouped the individuals as one ancestral population. A spatial principal component analysis showed that Saint Brandon was dissimilar to the Seychelles Island groups. Like other Elopomorph species, bonefishes have leptocephalus larvae capable of long-distance dispersal which may explain the well-mixed genetic population observed within the Seychelles islands. Although currents within the Indian Ocean, especially on a mesoscale, are not well understood, the South Equatorial Current likely facilitates connectivity between the Seychelles islands while also limiting gene flow between Seychelles and Mauritius. Understanding population structure is important for informing the appropriate management and conservation strategies, especially in oceanic nations where data informing important industries like tourism and fisheries are often limited. The bonefish fly fishing industry is well-known to be a lucrative sector, generating, for example US$ 1.4 million a year in the Bahamas. This study recognised that there are numerous knowledge gaps relevant to the bonefish industry that need to be addressed, including: 1) understanding the socio-economic importance of fly fishing to island states like Seychelles, 2) estimating the abundance and species distribution of bonefishes within Seychelles, 3) understanding effectiveness of MPAs for recreational fishery species like bonefish and, lastly, 4) generating more fishery-relevant biological information on the heavily targeted fly fishing species within Seychelles. These needs must be met to inform management plans and to better manage the fly fishing ventures that target species like bonefish. , Thesis (MSc) -- Faculty of Science, Ichthyology and Fisheries Science, 2021
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Date Issued: 2021-10-29

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An interpretation of the deeming provisions in legislation in the context of a good tax system: a South African perspective

- Mostert, Tarita

Authors: Mostert, Tarita
Date: 2021-10-29
Subjects: Organisation for Economic Co-operation and Development , Taxation Law and legislation South Africa , South Africa. Income Tax Act, 1962 , Taxpayer compliance South Africa , Tax evasion (International law) , Deeming provisions
Language: English
Type: Doctoral theses , text
Identifier: http://hdl.handle.net/10962/190897 , vital:45039 , 10.21504/10962/190897
Description: The goal of this thesis is to analyse the relationship between deeming provisions in legislation and the principles of a good tax system. The need for a positive relationship between deeming provisions and the principles of a good tax system is demonstrated in the thesis. The research explains the historical development of deeming provisions, legal principles relevant to the interpretation of tax legislation, as well as the principles of a good tax system. Approaches to the interpretation of legislation are then described and illustrated by means of case law. Following this, the research focuses on a selection of provisions in the South African Income Tax Act, 58 of 1962, to determine whether the deeming provisions included in the Act reflect the application of the principles of a good tax system. In addition to the analysis of the selected statutory provisions, related case law is discussed, again in relation to the deeming provisions. A discussion of deeming provisions in two publications of the Organisation for Economic Co-Operation and Development (OECD) – the OECD Model Tax Convention and the OECD Multilateral Convention to Implement Tax Treaty Measures to Prevent Base Erosion and Profit Shifting – follows, with an analysis of two related deeming provisions in the Income Tax Act, to illustrate the international approach to deeming provisions and the principles of a good tax system. Finally, the administration of tax legislation is discussed, together with organisations whose mission is to promote the principles of a good tax system in tax administration. The research is qualitative in nature and follows a legal doctrinal research methodology. This methodology is both reform-oriented and theoretical and focuses on understanding the application of the legal concepts: deeming provisions, legal principles and principles of a good tax system. The research concludes that, from a theoretical perspective, a positive relationship exists between deeming provisions in the Income Tax Act and the OECD Model Tax Convention and the principles of a good tax system, and therefore creates a positive environment for tax compliance. , Thesis (PhD) -- Faculty of Commerce, Accounting, 2021
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Date Issued: 2021-10-29

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